@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ==========================================
   Chat Switchboard
   Clean utility layout · Open WebUI inspired
   ========================================== */

:root {
    /* ── Core palette ────────────────────────── */
    --bg:           #0e0e10;
    --bg-surface:   #18181b;
    --bg-raised:    #222227;
    --bg-hover:     #2a2a30;
    --border:       #2e2e35;
    --border-light: #3a3a42;
    --text:         #e8e8ed;
    --text-2:       #9898a8;
    --text-3:       #6b6b7b;
    --accent:       #6c9fff;
    --accent-hover: #84b0ff;
    --accent-dim:   rgba(108,159,255,0.12);
    --danger:       #ef4444;
    --success:      #22c55e;
    --warning:      #eab308;
    --purple:       #a78bfa;
    --purple-dim:   rgba(167,139,250,0.10);

    /* ── Contrast text for solid-color backgrounds ── */
    --text-on-color:   #fff;
    --text-on-warning: #000;

    /* ── Light variants (badge/pill text on dim backgrounds) ── */
    --accent-light:  #93c5fd;
    --danger-light:  #f87171;
    --success-light: #4ade80;
    --warning-light: #fbbf24;

    /* ── Dim variants (badge/pill backgrounds) ── */
    --danger-dim:    rgba(239,68,68,0.2);
    --success-dim:   rgba(34,197,94,0.2);
    --warning-dim:   rgba(234,179,8,0.2);

    /* ── Surfaces ────────────────────────────── */
    --overlay:       rgba(0,0,0,0.6);
    --glass:         rgba(255,255,255,0.03);

    /* ── Layout ──────────────────────────────── */
    --radius:       8px;
    --radius-lg:    12px;
    --sidebar-w:    260px;
    --sidebar-rail: 52px;
    --font:         'DM Sans', 'Söhne', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono:         'JetBrains Mono', 'Söhne Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
    --transition:   180ms ease;

    /* Banner system — set by JS from /api/v1/admin/settings/banner */
    --banner-top-height: 0px;
    --banner-bottom-height: 0px;
    --banner-bg: transparent;
    --banner-fg: transparent;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body { font-family: var(--font); background: var(--bg); color: var(--text); overflow: hidden; font-size: 14px; }

/* Global scrollbar styling */
* { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
::selection { background: var(--accent-dim); }

/* ── App Shell ───────────────────────────── */

.app { display: flex; height: 100vh; height: 100dvh; flex-direction: column; }
.app-body { display: flex; flex: 1; min-height: 0; }

/* ── Environment Banners ──────────────────── */

.banner {
    display: none;
    width: 100%; text-align: center;
    font-size: 12px; font-weight: 700; letter-spacing: 1px;
    text-transform: uppercase;
    padding: 2px 0; line-height: 1.4;
    background: var(--banner-bg); color: var(--banner-fg);
    flex-shrink: 0; z-index: 9999;
    min-height: 22px; box-sizing: border-box;
}
.banner.active { display: flex; align-items: center; justify-content: center; }
.banner-top { order: -1; }
.banner-bottom { order: 999; }

/* ── Sidebar ─────────────────────────────── */

.sidebar {
    width: var(--sidebar-w); background: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex; flex-direction: column;
    transition: width var(--transition);
    overflow: hidden; flex-shrink: 0;
}
.sidebar.collapsed { width: var(--sidebar-rail); }

.sidebar-top {
    display: flex; flex-direction: column; gap: 2px;
    padding: 10px 10px 8px;
    border-bottom: 1px solid var(--border);
}

/* Brand / collapse toggle */
.sb-brand {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 10px; border-radius: var(--radius);
    background: none; border: none; color: var(--text);
    cursor: pointer; font-size: 13px; white-space: nowrap;
    transition: background var(--transition); width: 100%;
    position: relative;
}
.sb-brand:hover { background: var(--bg-hover); }
.brand-logo { flex-shrink: 0; width: 18px; height: 18px; display: grid; place-items: center; }
.brand-logo-img { width: 18px; height: 18px; object-fit: contain; border-radius: 3px; }
.brand-collapse { display: none; }
.brand-text { font-weight: 600; font-size: 14px; }

.sb-btn {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 10px; border-radius: var(--radius);
    background: none; border: none; color: var(--text-2);
    cursor: pointer; font-size: 13px; white-space: nowrap;
    transition: background var(--transition), color var(--transition);
    width: 100%;
}
.sb-btn:hover { background: var(--bg-hover); color: var(--text); }
.sb-btn svg { flex-shrink: 0; }
.sb-label { overflow: hidden; transition: opacity var(--transition); }
.sidebar.collapsed .sb-label { opacity: 0; width: 0; }
.sidebar.collapsed .brand-text { opacity: 0; width: 0; }

/* Collapsed centering */
.sidebar.collapsed .sidebar-top { padding: 10px 0 8px; align-items: center; }
.sidebar.collapsed .sidebar-bottom { padding: 8px 0; display: flex; flex-direction: column; align-items: center; }
.sidebar.collapsed .sb-brand { justify-content: center; padding: 8px 0; gap: 0; }
.sidebar.collapsed .sb-btn { justify-content: center; padding: 8px 0; gap: 0; }
.sidebar.collapsed .split-btn-main { justify-content: center; padding: 8px 0; gap: 0; }
.sidebar.collapsed .user-btn { justify-content: center; padding: 6px 0; gap: 0; }
.sidebar.collapsed .user-flyout {
    position: fixed;
    left: var(--sidebar-rail);
    bottom: 8px;
    right: auto;
    width: 200px;
    margin-bottom: 0;
}
.sidebar.collapsed .avatar-bug { display: none; }

/* Split button (New Chat + dropdown) */
.split-btn { display: flex; width: 100%; gap: 0; }
.split-btn-main {
    flex: 1; display: flex; align-items: center; gap: 10px;
    padding: 8px 10px; border-radius: var(--radius) 0 0 var(--radius);
    background: none; border: none; color: var(--text-2);
    cursor: pointer; font-size: 13px; white-space: nowrap;
    transition: background var(--transition), color var(--transition);
}
.split-btn-main:hover { background: var(--bg-hover); color: var(--text); }
.split-btn-main svg { flex-shrink: 0; }

.split-btn-drop {
    display: flex; align-items: center; padding: 8px 6px;
    border-radius: 0 var(--radius) var(--radius) 0;
    background: none; border: none; border-left: 1px solid var(--border);
    color: var(--text-3); cursor: pointer;
    transition: background var(--transition), color var(--transition);
}
.split-btn-drop:hover { background: var(--bg-hover); color: var(--text); }
.sidebar.collapsed .split-btn-drop { display: none; }

/* Dropdown menu */
.split-dropdown {
    display: none; position: absolute; left: 6px; right: 6px;
    top: 100%; z-index: 200;
    background: var(--bg-raised); border: 1px solid var(--border-light);
    border-radius: var(--radius); padding: 4px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.split-dropdown.open { display: block; }
.split-dropdown-item {
    display: flex; align-items: center; gap: 8px;
    padding: 7px 10px; border-radius: 4px; width: 100%;
    background: none; border: none; color: var(--text-2);
    cursor: pointer; font-size: 12px; white-space: nowrap;
    transition: background var(--transition), color var(--transition);
}
.split-dropdown-item:hover { background: var(--bg-hover); color: var(--text); }
.split-dropdown-item.disabled { opacity: 0.4; pointer-events: none; }
.split-dropdown-item .dd-hint {
    margin-left: auto; font-size: 10px; color: var(--text-3);
}

/* Chat/Channel list */
.sidebar-chats {
    flex: 1; overflow-y: auto; overflow-x: hidden;
    padding: 8px 6px;
}
.sidebar-chats::-webkit-scrollbar { width: 4px; }

/* Channels section header */
.sidebar-section-header {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 10px 4px; cursor: pointer;
    user-select: none;
}
.sidebar-section-header .section-arrow {
    font-size: 10px; color: var(--text-3); transition: transform var(--transition);
}
.sidebar-section-header.collapsed .section-arrow { transform: rotate(-90deg); }
.sidebar-section-header .section-label {
    font-size: 11px; font-weight: 600; color: var(--text-3);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.sidebar-section-header .section-count {
    font-size: 10px; color: var(--text-3); margin-left: auto;
}
.sidebar.collapsed .sidebar-section-header { display: none; }

.channel-item {
    display: flex; align-items: center; gap: 8px;
    padding: 7px 10px; border-radius: var(--radius);
    cursor: pointer; font-size: 13px; color: var(--text-2);
    transition: background var(--transition); position: relative;
    overflow: hidden;
}
.channel-item:hover { background: var(--bg-hover); color: var(--text); }
.channel-item.active { background: var(--bg-raised); color: var(--text); }
.channel-item .channel-hash { color: var(--text-3); font-weight: 600; flex-shrink: 0; }
.channel-item .channel-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar.collapsed .channel-item .channel-name { display: none; }

.chat-group-label {
    font-size: 11px; font-weight: 600; color: var(--text-3);
    padding: 12px 10px 4px; text-transform: uppercase; letter-spacing: 0.5px;
    white-space: nowrap; overflow: hidden;
}
.sidebar.collapsed .chat-group-label { display: none; }

.chat-item {
    display: flex; align-items: center; gap: 8px;
    padding: 7px 10px; border-radius: var(--radius);
    cursor: pointer; font-size: 13px; color: var(--text-2);
    transition: background var(--transition); position: relative;
    overflow: hidden;
}
.chat-item:hover { background: var(--bg-hover); color: var(--text); }
.chat-item.active { background: var(--bg-raised); color: var(--text); }
.chat-item-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-item-time {
    font-size: 10px; color: var(--text-3); flex-shrink: 0;
    white-space: nowrap;
}
.chat-item-delete {
    opacity: 0; position: absolute; right: 6px; background: var(--bg-raised);
    border: none; color: var(--text-3); cursor: pointer; font-size: 11px;
    padding: 2px 6px; border-radius: 4px; transition: opacity var(--transition);
}
.chat-item:hover .chat-item-delete { opacity: 1; }
.chat-item:hover .chat-item-time { display: none; }
.sidebar.collapsed .chat-item-title,
.sidebar.collapsed .chat-item-time,
.sidebar.collapsed .chat-item-delete { display: none; }
.sidebar.collapsed .sidebar-chats { visibility: hidden; }

.sidebar-empty {
    color: var(--text-3); font-size: 12px; text-align: center; padding: 2rem 0.5rem;
}
.sidebar.collapsed .sidebar-empty { display: none; }

/* User area */
.sidebar-bottom {
    border-top: 1px solid var(--border);
    padding: 8px 10px; position: relative;
}

.user-btn {
    display: flex; align-items: center; gap: 10px;
    padding: 6px 8px; border-radius: var(--radius);
    background: none; border: none; color: var(--text);
    cursor: pointer; width: 100%;
    transition: background var(--transition);
}
.user-btn:hover { background: var(--bg-hover); }

.user-avatar {
    width: 30px; height: 30px; border-radius: 50%;
    background: var(--bg-raised); display: flex; align-items: center;
    justify-content: center; font-size: 13px; font-weight: 600;
    color: var(--accent); flex-shrink: 0; position: relative;
    overflow: hidden;
}
.user-avatar-img {
    width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
}
.avatar-bug {
    position: absolute; bottom: -3px; right: -3px;
    font-size: 10px; line-height: 1;
    display: none;
    transition: filter var(--transition);
}
.avatar-bug.has-errors {
    display: block;
    filter: drop-shadow(0 0 4px var(--danger));
    animation: bug-pulse 1.5s ease infinite;
}
@keyframes bug-pulse { 0%,100% { filter: drop-shadow(0 0 3px var(--danger)); } 50% { filter: drop-shadow(0 0 8px var(--danger)); } }
.user-name { font-size: 13px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Flyout */
.user-flyout {
    display: none; position: absolute; bottom: 100%; left: 8px; right: 8px;
    background: var(--bg-raised); border: 1px solid var(--border-light);
    border-radius: var(--radius-lg); padding: 4px; margin-bottom: 4px;
    box-shadow: 0 -4px 24px rgba(0,0,0,0.5); z-index: 200;
}
.user-flyout.open { display: block; }

.flyout-item {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; border-radius: var(--radius);
    background: none; border: none; color: var(--text-2);
    cursor: pointer; font-size: 13px; width: 100%;
    transition: background var(--transition), color var(--transition);
}
.flyout-item:hover { background: var(--bg-hover); color: var(--text); }
.flyout-item svg { flex-shrink: 0; }
.flyout-danger:hover { color: var(--danger); }
.flyout-divider { height: 1px; background: var(--border); margin: 4px 8px; }

/* ── Chat Area ───────────────────────────── */

.chat-area { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--bg); }

.model-bar {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 16px; flex-shrink: 0;
}
.model-bar select {
    background: transparent; border: 1px solid transparent;
    color: var(--text); font-size: 14px; font-weight: 500;
    padding: 4px 8px; border-radius: var(--radius); cursor: pointer;
    font-family: var(--font); max-width: 300px;
    transition: border-color var(--transition);
}
.model-bar select:hover { border-color: var(--border); }
.model-bar select:focus { outline: none; border-color: var(--accent); }
.model-bar select option { background: var(--bg-surface); color: var(--text); }

/* ── Custom Model Dropdown ───────────────── */

.model-dropdown { position: relative; }
.model-dropdown-btn {
    display: flex; align-items: center; gap: 6px;
    background: none; border: 1px solid transparent;
    color: var(--text); font-size: 14px; font-weight: 500;
    padding: 4px 8px; border-radius: var(--radius); cursor: pointer;
    font-family: var(--font); max-width: 340px;
    transition: border-color var(--transition);
}
.model-dropdown-btn:hover { border-color: var(--border); }
.model-dropdown-btn svg { flex-shrink: 0; opacity: 0.5; }
.model-dropdown-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.model-dropdown-menu {
    display: none; position: absolute; top: 100%; left: 0; z-index: 200;
    min-width: 280px; max-width: 400px; max-height: 400px; overflow-y: auto;
    background: var(--bg-raised); border: 1px solid var(--border-light);
    border-radius: var(--radius); padding: 4px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
    margin-top: 4px;
}
.model-dropdown-menu.open { display: block; }
.model-dropdown-group {
    padding: 6px 10px 4px; font-size: 11px; font-weight: 600;
    color: var(--text-3); text-transform: uppercase; letter-spacing: 0.5px;
}
.model-dropdown-item {
    display: flex; align-items: center; gap: 8px;
    padding: 7px 10px; border-radius: 4px;
    cursor: pointer; font-size: 13px;
    color: var(--text-2); white-space: nowrap;
    transition: background var(--transition), color var(--transition);
}
.model-dropdown-item:hover { background: var(--bg-hover); color: var(--text); }
.model-dropdown-item.selected { background: var(--bg-hover); color: var(--accent); }
.model-dropdown-item .item-label { flex: 1; overflow: hidden; text-overflow: ellipsis; }
.model-dropdown-item .item-provider { margin-left: auto; font-size: 10px; color: var(--text-3); }
.dropdown-avatar { width: 18px; height: 18px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }

.model-caps {
    display: flex; align-items: center; gap: 4px;
    margin-left: 4px; flex-wrap: wrap;
}
.cap-badge {
    display: inline-flex; align-items: center; gap: 3px;
    font-size: 10px; line-height: 1; padding: 2px 6px;
    border-radius: 3px; white-space: nowrap;
    background: var(--bg-raised); color: var(--text-3);
    border: 1px solid transparent;
}
.cap-badge.cap-accent {
    color: var(--accent); border-color: color-mix(in srgb, var(--accent), transparent 80%);
    background: color-mix(in srgb, var(--accent), transparent 92%);
}
.cap-badge.cap-context {
    color: var(--text-3);
}

.icon-btn {
    background: none; border: none; color: var(--text-3); cursor: pointer;
    padding: 4px; border-radius: 4px;
    transition: color var(--transition);
}
.icon-btn:hover { color: var(--text); }

/* Messages */
.messages { flex: 1; overflow-y: auto; scroll-behavior: smooth; }

.message { padding: 1.25rem 0; }
.message:not(:last-child) { border-bottom: 1px solid var(--glass); }

.msg-inner { max-width: 768px; margin: 0 auto; padding: 0 1.5rem; display: flex; gap: 1rem; }

.msg-avatar {
    width: 28px; height: 28px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; flex-shrink: 0; margin-top: 2px;
    overflow: hidden;
}
.msg-avatar-img {
    width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
}
.message.user .msg-avatar { background: var(--accent-dim); }
.message.assistant .msg-avatar { background: var(--bg-raised); }

.msg-body { flex: 1; min-width: 0; }
.msg-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.msg-role { font-size: 13px; font-weight: 600; }
.msg-time { font-size: 11px; color: var(--text-3); }
.msg-actions {
    margin-left: auto; display: flex; gap: 2px; opacity: 0;
    transition: opacity var(--transition);
}
.message:hover .msg-actions { opacity: 1; }
.msg-action-btn {
    background: none; border: none; color: var(--text-3); cursor: pointer;
    padding: 2px 6px; border-radius: 4px; font-size: 11px;
    transition: background var(--transition), color var(--transition);
}
.msg-action-btn:hover { background: var(--bg-hover); color: var(--text); }

/* Branch navigation indicator */
.branch-nav {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 12px;
    color: var(--text-3);
}
.branch-arrow {
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-2);
    cursor: pointer;
    padding: 0 5px;
    font-size: 16px;
    line-height: 18px;
    transition: var(--transition);
}
.branch-arrow:hover:not(:disabled) { color: var(--accent); border-color: var(--accent); }
.branch-arrow:disabled { opacity: 0.25; cursor: default; }
.branch-pos {
    font-size: 11px;
    font-variant-numeric: tabular-nums;
    min-width: 28px;
    text-align: center;
    user-select: none;
}

/* Inline message editing */
.msg-edit-input {
    width: 100%;
    background: var(--bg-surface);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    color: var(--text);
    padding: 10px 12px;
    font-family: var(--font);
    font-size: var(--msg-font, 14px);
    line-height: 1.6;
    resize: vertical;
    min-height: 60px;
    max-height: 400px;
    outline: none;
}
.msg-edit-input:focus { border-color: var(--accent-hover); box-shadow: 0 0 0 2px var(--accent-dim); }
.msg-edit-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    justify-content: flex-end;
}
.msg-edit-cancel, .msg-edit-submit {
    padding: 6px 14px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border);
}
.msg-edit-cancel {
    background: var(--bg-raised);
    color: var(--text-2);
}
.msg-edit-cancel:hover { background: var(--bg-hover); color: var(--text); }
.msg-edit-submit {
    background: var(--accent);
    color: var(--text-on-color);
    border-color: var(--accent);
}
.msg-edit-submit:hover { background: var(--accent-hover); }

.msg-text { font-size: var(--msg-font, 14px); line-height: 1.7; }

/* ── Markdown Content ────────────────────── */

.msg-text p { margin: 0.4em 0; }
.msg-text p:first-child { margin-top: 0; }
.msg-text p:last-child { margin-bottom: 0; }

.msg-text pre {
    background: var(--bg-surface); border: 1px solid var(--border);
    padding: 0.75rem 1rem; border-radius: var(--radius);
    overflow-x: auto; margin: 0.75rem 0; position: relative;
    font-size: 13px;
}
.msg-text code {
    font-family: var(--mono); font-size: 0.9em;
    background: var(--bg-raised); padding: 0.15em 0.4em;
    border-radius: 4px;
}
.msg-text pre code { background: none; padding: 0; font-size: inherit; }

/* Code block toolbar */
.code-toolbar {
    position: absolute; top: 6px; right: 6px;
    display: flex; gap: 4px; align-items: center;
    opacity: 0; transition: opacity var(--transition);
}
.msg-text pre:hover .code-toolbar { opacity: 1; }
.code-block.code-collapsed .code-toolbar { opacity: 1; }
.copy-code-btn {
    background: var(--bg-raised); border: 1px solid var(--border);
    color: var(--text-3); border-radius: 4px;
    padding: 2px 10px; font-size: 11px; cursor: pointer;
    transition: color var(--transition), border-color var(--transition);
}
.copy-code-btn:hover { color: var(--text); border-color: var(--border-light); }
.code-collapse-btn {
    background: var(--bg-raised); border: 1px solid var(--border);
    color: var(--text-3); border-radius: 4px;
    padding: 2px 10px; font-size: 11px; cursor: pointer;
    font-family: var(--mono); white-space: nowrap;
    transition: color var(--transition), border-color var(--transition);
}
.code-collapse-btn:hover { color: var(--text); border-color: var(--border-light); }

/* Collapsed code block */
.code-block.code-collapsed code {
    max-height: 3.6em; overflow: hidden; display: block;
    mask-image: linear-gradient(to bottom, #000 40%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, #000 40%, transparent 100%);
}

/* Language label */
.code-lang {
    position: absolute; top: 6px; left: 10px;
    font-size: 10px; color: var(--text-3); font-family: var(--mono);
    text-transform: uppercase; letter-spacing: 0.5px; user-select: none;
}

/* ── Extension-rendered blocks ──────── */

.ext-rendered {
    margin: 12px 0;
}

/* HTML preview */
/* ── Side Panel (Preview + Notes) ──────── */

.side-panel {
    width: 0; min-width: 0; overflow: hidden;
    background: var(--bg); border-left: 1px solid var(--border);
    display: flex; flex-direction: column; position: relative;
    transition: width 0.25s ease, min-width 0.25s ease;
}
.side-panel.open {
    width: 480px; min-width: 480px;
}
.side-panel.fullscreen {
    position: fixed; top: 0; right: 0; bottom: 0;
    width: 100% !important; min-width: 100% !important;
    z-index: 100;
    transition: none;
}
.side-panel-resize {
    position: absolute; left: -3px; top: 0; bottom: 0; width: 6px;
    cursor: col-resize; z-index: 10;
}
.side-panel-resize:hover { background: var(--accent); opacity: 0.3; }
.side-panel.fullscreen .side-panel-resize { display: none; }
.side-panel-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 12px; border-bottom: 1px solid var(--border);
    background: var(--bg-raised); flex-shrink: 0;
}
.side-panel-actions {
    display: flex; align-items: center; gap: 2px;
}
.side-panel-action-btn {
    background: none; border: none; color: var(--text-3);
    cursor: pointer; padding: 4px 6px; border-radius: var(--radius);
    transition: all var(--transition); display: flex; align-items: center;
}
.side-panel-action-btn:hover { background: var(--bg-hover); color: var(--text); }
.side-panel-tabs {
    display: flex; gap: 2px; background: var(--bg-surface);
    border-radius: var(--radius); padding: 2px;
}
.side-panel-tab {
    padding: 4px 14px; border-radius: calc(var(--radius) - 2px);
    font-size: 12px; font-family: var(--font); font-weight: 500;
    background: none; border: none; color: var(--text-3);
    cursor: pointer; transition: all var(--transition);
}
.side-panel-tab:hover { color: var(--text); }
.side-panel-tab.active {
    background: var(--bg-raised); color: var(--text);
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.side-panel-close {
    background: none; border: none; color: var(--text-3);
    cursor: pointer; font-size: 16px; padding: 2px 6px;
    border-radius: var(--radius); transition: all var(--transition);
}
.side-panel-close:hover { background: var(--bg-hover); color: var(--text); }
.side-panel-body {
    flex: 1; overflow-y: auto; min-height: 0;
}
.side-panel-page { height: 100%; display: flex; flex-direction: column; }
.side-panel-empty {
    display: flex; align-items: center; justify-content: center;
    height: 100%; color: var(--text-3); font-size: 13px;
    padding: 2rem; text-align: center;
}
.preview-frame {
    flex: 1; width: 100%; border: none; background: #fff;
}

/* Notes inside side panel */
.notes-actions-bar {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 12px; border-bottom: 1px solid var(--border);
}
.side-panel .notes-list { padding: 4px 8px; }
.side-panel .notes-editor { padding: 8px 12px; }
.side-panel .note-read-content {
    max-height: none; flex: 1; overflow-y: auto;
}
.side-panel .notes-content-input {
    min-height: 150px;
}
.side-panel #notesListView {
    flex: 1; overflow-y: auto; min-height: 0;
}
.side-panel #notesEditorView {
    flex: 1; overflow-y: auto; min-height: 0;
}

/* Mobile: full-width overlay */
@media (max-width: 768px) {
    .side-panel.open {
        position: fixed; top: 0; right: 0; bottom: 0;
        width: 100vw; min-width: 100vw; z-index: 200;
    }
}

.msg-text ul, .msg-text ol { margin: 0.4em 0; padding-left: 1.5em; }
.msg-text li { margin: 0.2em 0; }
.msg-text li > p { margin: 0.2em 0; }

.msg-text blockquote {
    border-left: 3px solid var(--accent); padding: 0.25em 0.75em; margin: 0.5em 0;
    color: var(--text-2); background: var(--accent-dim); border-radius: 0 var(--radius) var(--radius) 0;
}

.msg-text hr { border: none; border-top: 1px solid var(--border); margin: 0.75em 0; }

.msg-text table { border-collapse: collapse; width: 100%; margin: 0.5em 0; font-size: 13px; }
.msg-text th, .msg-text td { border: 1px solid var(--border); padding: 0.4em 0.7em; text-align: left; }
.msg-text th { background: var(--bg-raised); font-weight: 600; }

.msg-text h1, .msg-text h2, .msg-text h3, .msg-text h4 { margin: 0.75em 0 0.3em; font-weight: 600; }
.msg-text h1 { font-size: 1.4em; }
.msg-text h2 { font-size: 1.2em; }
.msg-text h3 { font-size: 1.05em; }

.msg-text a { color: var(--accent); }
.msg-text img { max-width: 100%; border-radius: var(--radius); }

/* Thinking blocks */
.thinking-block {
    border: 1px solid var(--accent-dim); border-radius: var(--radius);
    margin: 0.5rem 0; background: rgba(108,159,255,0.03);
}
.thinking-block summary {
    padding: 0.4rem 0.75rem; cursor: pointer; font-size: 12px;
    color: var(--text-3); user-select: none;
    transition: color var(--transition);
}
.thinking-block summary:hover { color: var(--text-2); }
.thinking-block[open] summary { border-bottom: 1px solid rgba(108,159,255,0.08); }
.thinking-content {
    padding: 0.5rem 0.75rem; font-size: 12px; color: var(--text-3);
    max-height: 300px; overflow-y: auto; line-height: 1.6;
}

/* Tool activity indicators */
.msg-tools {
    display: flex; flex-direction: column; gap: 4px;
    margin-bottom: 0.5rem;
}
.tool-activity {
    display: flex; align-items: center; gap: 6px;
    font-size: 12px; color: var(--text-3);
    background: var(--bg-raised); border: 1px solid var(--border);
    padding: 4px 10px; border-radius: var(--radius);
    animation: tool-fade-in 0.2s ease;
}
@keyframes tool-fade-in { from { opacity: 0; transform: translateY(-4px); } }
.tool-icon { font-size: 13px; }
.tool-name { font-family: var(--mono); font-size: 11px; color: var(--text-2); }
.tool-status { font-size: 11px; margin-left: auto; }
.tool-running { color: var(--warning); }
.tool-running::after {
    content: ''; display: inline-block; width: 4px; height: 4px;
    border-radius: 50%; background: var(--warning); margin-left: 4px;
    animation: tool-pulse 1s infinite;
}
@keyframes tool-pulse { 0%,100% { opacity: 0.4; } 50% { opacity: 1; } }
.tool-done { color: var(--success); }
.tool-error { color: var(--danger); }
.tool-hint {
    font-size: 11px; color: var(--text-3); margin-left: 6px;
    max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.tool-note-link {
    background: none; border: none; color: var(--accent); cursor: pointer;
    font-size: 11px; margin-left: 6px; padding: 0;
    text-decoration: none;
    transition: color var(--transition);
}
.tool-note-link:hover { color: var(--text); text-decoration: underline; }

/* Tool calls in message history (collapsed) */
.tool-call-block {
    border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--bg-raised); font-size: 12px;
}
.tool-call-summary {
    display: flex; align-items: center; gap: 6px;
    padding: 4px 10px; cursor: pointer; user-select: none;
    color: var(--text-3); list-style: none;
    transition: color var(--transition);
}
.tool-call-summary::-webkit-details-marker { display: none; }
.tool-call-summary::before {
    content: '▸'; font-size: 10px; color: var(--text-3);
    transition: transform 0.15s ease;
}
.tool-call-block[open] .tool-call-summary::before { transform: rotate(90deg); }
.tool-call-summary:hover { color: var(--text-2); }
.tool-detail {
    border-top: 1px solid var(--border); padding: 6px 10px;
    display: flex; flex-direction: column; gap: 6px;
}
.tool-detail-label {
    font-size: 10px; color: var(--text-3); text-transform: uppercase;
    letter-spacing: 0.5px; font-weight: 600;
}
.tool-detail-pre {
    margin: 2px 0 0; padding: 6px 8px;
    background: var(--bg-surface); border-radius: 4px;
    font-size: 11px; color: var(--text-2); white-space: pre-wrap;
    word-break: break-all; max-height: 200px; overflow-y: auto;
}

/* Empty state */
.empty-state {
    display: flex; flex-direction: column; align-items: center;
    justify-content: center; height: 100%; color: var(--text-3); gap: 0.25rem;
}
.empty-logo { font-size: 3rem; margin-bottom: 0.5rem; }
.empty-logo-img { width: 64px; height: 64px; object-fit: contain; }
.empty-state h2 { font-size: 1.25rem; font-weight: 600; color: var(--text-2); }
.empty-state p { font-size: 0.85rem; }

/* Typing indicator */
.typing-dots { display: flex; gap: 4px; padding: 0.5rem 0; }
.typing-dots span {
    width: 6px; height: 6px; border-radius: 50%; background: var(--text-3);
    animation: dot-pulse 1.2s infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dot-pulse { 0%,60%,100% { opacity: 0.4; } 30% { opacity: 1; } }

/* ── Input Area ──────────────────────────── */

.input-area { padding: 0 1rem 1rem; flex-shrink: 0; }

/* Token counter below input */
.input-meta { display: flex; justify-content: space-between; align-items: center; padding: 2px 12px 0; min-height: 18px; }
.input-token-count { font-size: 0.68rem; color: var(--text-3); transition: color 0.2s; }
.input-token-count.warning { color: var(--warning); }
.input-token-count.danger { color: var(--danger); }

/* Context length warning banner */
.context-warning {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 12px; margin-bottom: 8px; border-radius: 8px;
    background: color-mix(in srgb, var(--warning) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--warning) 25%, transparent);
    font-size: 0.78rem; color: var(--text-2); animation: fadeIn 0.2s ease;
}
.context-warning.danger {
    background: color-mix(in srgb, var(--danger) 12%, transparent);
    border-color: color-mix(in srgb, var(--danger) 25%, transparent);
}
.context-warning-icon { flex-shrink: 0; }
.context-warning-text { flex: 1; }
.context-warning-dismiss { background: none; border: none; color: var(--text-3); cursor: pointer; padding: 0 2px; font-size: 0.85rem; }
.context-warning-dismiss:hover { color: var(--text); }
.context-warning-action {
    flex-shrink: 0; padding: 3px 10px; border-radius: 6px; border: 1px solid var(--border);
    background: var(--bg-surface); color: var(--text); cursor: pointer;
    font-size: 0.75rem; white-space: nowrap; transition: all var(--transition);
}
.context-warning-action:hover { background: var(--accent); color: var(--text-on-color); border-color: var(--accent); }
.context-warning-action:disabled { opacity: 0.5; cursor: not-allowed; }
.context-warning-action:disabled:hover { background: var(--bg-surface); color: var(--text); border-color: var(--border); }
.context-warning-toggle {
    display: inline-flex; align-items: center; gap: 4px; flex-shrink: 0;
    font-size: 0.72rem; color: var(--text-3); cursor: pointer; white-space: nowrap;
    user-select: none;
}
.context-warning-toggle input[type="checkbox"] { margin: 0; cursor: pointer; }
/* Summary message node */
.message-summary {
    border: 1px dashed color-mix(in srgb, var(--accent) 40%, transparent);
    border-radius: 8px; padding: 10px 14px; margin: 4px 0;
    background: color-mix(in srgb, var(--accent) 6%, transparent);
    font-size: 0.85rem; position: relative;
}
.message-summary .summary-header {
    display: flex; align-items: center; gap: 6px; margin-bottom: 6px;
    font-size: 0.75rem; color: var(--text-3); font-weight: 500;
}
.message-summary .summary-toggle {
    background: none; border: none; color: var(--accent); cursor: pointer;
    font-size: 0.75rem; padding: 0; text-decoration: underline;
}
.message-summary .summary-toggle:hover { color: var(--text); }
.msg-dimmed { opacity: 0.5; }
.message-summary-divider {
    text-align: center; padding: 8px 0; margin: 4px 0;
}
.message-summary-divider .summary-toggle {
    background: none; border: none; color: var(--text-3); cursor: pointer;
    font-size: 0.78rem; padding: 4px 12px; border-radius: 4px;
    transition: all var(--transition);
}
.message-summary-divider .summary-toggle:hover { color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.input-wrap {
    max-width: 768px; margin: 0 auto;
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 0;
    display: flex; align-items: flex-end;
    transition: border-color var(--transition);
}
.input-wrap:focus-within { border-color: var(--border-light); }

.input-wrap textarea {
    flex: 1; resize: none; background: none; border: none;
    color: var(--text); padding: 12px 0 12px 8px;
    font-family: var(--font); font-size: 14px;
    max-height: 200px; line-height: 1.5;
}
.input-wrap textarea:focus { outline: none; }
.input-wrap textarea::placeholder { color: var(--text-3); }

.input-actions { display: flex; align-items: center; gap: 2px; padding: 6px 8px; }

/* Left-side toolbar: attach, tools, KB — single container handles alignment */
.input-toolbar {
    display: flex; align-items: center; gap: 2px;
    padding: 0 2px 6px 8px; flex-shrink: 0;
}

.action-btn {
    background: none; border: none; color: var(--text-3); cursor: pointer;
    padding: 6px; border-radius: var(--radius);
    transition: background var(--transition), color var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.action-btn:hover { background: var(--bg-hover); color: var(--text); }

.send-btn { color: var(--accent); }
.send-btn:hover { background: var(--accent-dim); color: var(--accent-hover); }
.send-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.stop-btn { display: none; color: var(--warning); }
.stop-btn.visible { display: flex; }

/* ── Attachments ─────────────────────────── */

.attach-btn { color: var(--text-3); }
.attach-btn:hover { color: var(--text); }

.attachment-strip {
    max-width: 768px; margin: 0 auto; padding: 6px 8px 2px;
    display: flex; gap: 6px; flex-wrap: wrap;
}

.att-chip {
    display: flex; align-items: center; gap: 6px;
    background: var(--bg-raised); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 4px 6px;
    font-size: 12px; max-width: 220px; position: relative;
}
.att-chip.att-ready { border-color: color-mix(in srgb, var(--success) 40%, var(--border)); }
.att-chip.att-error { border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }
.att-chip.att-pending { border-color: color-mix(in srgb, var(--accent) 30%, var(--border)); }

.att-thumb {
    width: 32px; height: 32px; object-fit: cover;
    border-radius: 3px; flex-shrink: 0;
}
.att-icon { font-size: 18px; flex-shrink: 0; line-height: 1; }

.att-info { display: flex; flex-direction: column; min-width: 0; }
.att-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text); font-weight: 500; }
.att-meta { color: var(--text-3); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.att-remove {
    background: none; border: none; color: var(--text-3); cursor: pointer;
    padding: 2px 4px; font-size: 13px; line-height: 1; border-radius: 3px;
    flex-shrink: 0; margin-left: auto;
}
.att-remove:hover { background: var(--bg-hover); color: var(--text); }

/* Drag-and-drop overlay on chat area */
.messages.drag-over {
    outline: 2px dashed var(--accent);
    outline-offset: -4px;
    background: color-mix(in srgb, var(--accent) 4%, var(--bg));
}

/* ── Message Attachments ────────────────────── */

.msg-attachments {
    display: flex; gap: 8px; flex-wrap: wrap;
    margin-top: 8px;
}

.msg-att-image {
    cursor: pointer; position: relative; border-radius: var(--radius);
    overflow: hidden; border: 1px solid var(--border);
    transition: border-color var(--transition);
}
.msg-att-image:hover { border-color: var(--accent); }
.msg-att-image img {
    display: block; max-height: 280px; border-radius: var(--radius);
    background: var(--bg-raised);
}
.msg-att-image img.att-load-error {
    min-width: 120px; min-height: 60px;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; color: var(--text-3);
}

.att-vision-hint {
    position: absolute; top: 4px; right: 4px;
    background: color-mix(in srgb, var(--bg) 85%, transparent);
    border-radius: 4px; padding: 2px 5px; font-size: 14px;
    cursor: help;
}

.msg-att-doc {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 12px; border: 1px solid var(--border);
    border-radius: var(--radius); background: var(--bg-raised);
    text-decoration: none; color: var(--text);
    max-width: 280px; transition: border-color var(--transition);
}
.msg-att-doc:hover { border-color: var(--accent); }
.att-doc-icon { font-size: 20px; flex-shrink: 0; }
.att-doc-info { display: flex; flex-direction: column; min-width: 0; }
.att-doc-name {
    font-size: 13px; font-weight: 500;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.att-doc-size { font-size: 11px; color: var(--text-3); }
.att-doc-dl { color: var(--text-3); font-size: 14px; margin-left: auto; }

/* ── Image Lightbox ─────────────────────────── */

.lightbox-overlay {
    display: none; position: fixed; inset: 0; z-index: 10000;
    background: rgba(0,0,0,0.85); align-items: center; justify-content: center;
}
.lightbox-overlay.active { display: flex; }
.lightbox-overlay img {
    max-width: 92vw; max-height: 90vh; object-fit: contain;
    border-radius: 4px; box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.lightbox-close {
    position: absolute; top: 16px; right: 20px;
    background: rgba(255,255,255,0.15); border: none; color: var(--text-on-color);
    font-size: 22px; width: 40px; height: 40px; border-radius: 50%;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: background 0.15s;
}
.lightbox-close:hover { background: rgba(255,255,255,0.3); }

/* ── Admin Storage Panel ────────────────────── */

.admin-storage-card {
    background: var(--bg-raised); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 16px; margin-bottom: 12px;
}
.admin-storage-card h4 { margin: 0 0 10px 0; font-size: 14px; }
.admin-storage-desc { font-size: 12px; color: var(--text-3); margin: 0 0 10px 0; }
.admin-storage-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px;
}
.admin-storage-item { display: flex; flex-direction: column; gap: 2px; }
.admin-storage-label { font-size: 11px; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.5px; }
.admin-storage-value { font-size: 14px; font-weight: 500; }

/* ── Buttons ─────────────────────────────── */

button { font-family: var(--font); cursor: pointer; }
.btn-primary {
    background: var(--accent); color: var(--text-on-color); border: none;
    padding: 8px 16px; border-radius: var(--radius);
    font-weight: 500; font-size: 13px;
    transition: background var(--transition);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-full { width: 100%; }
.btn-small {
    background: var(--bg-raised); border: 1px solid var(--border);
    color: var(--text-2); padding: 6px 12px; border-radius: var(--radius);
    font-size: 12px; transition: all var(--transition);
}
.btn-small:hover { background: var(--bg-hover); color: var(--text); }
.btn-small.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--text-on-color); }
.btn-danger { background: var(--danger); color: var(--text-on-color); border: none; border-radius: var(--radius); }

/* ── Auth Splash ─────────────────────────── */

.splash {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
}

/* Hero Panel (left) */
.splash-hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 4rem 3.5rem;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse 80% 60% at 30% 40%, rgba(108,159,255,0.06), transparent),
        radial-gradient(ellipse 60% 50% at 70% 70%, rgba(167,139,250,0.05), transparent),
        var(--bg);
}
.splash-hero::before {
    content: '';
    position: absolute;
    inset: -50%;
    background-image:
        linear-gradient(rgba(108,159,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108,159,255,0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    animation: gridDrift 30s linear infinite;
    pointer-events: none;
}
@keyframes gridDrift { to { transform: translate(48px, 48px); } }
.splash-hero::after {
    content: '';
    position: absolute;
    width: 320px; height: 320px;
    bottom: -80px; right: -60px;
    background: radial-gradient(circle, rgba(167,139,250,0.08), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 520px; }
.hero-logo-row { display: flex; align-items: center; gap: 14px; margin-bottom: 1.5rem; }
.hero-logo-mark { width: 48px; height: 48px; flex-shrink: 0; }
.hero-logo-img { width: 48px; height: 48px; object-fit: contain; border-radius: 8px; }
.hero-wordmark { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.hero-wordmark span { color: var(--accent); }

.hero-headline {
    font-size: 2.4rem; font-weight: 700; line-height: 1.15;
    letter-spacing: -0.03em; margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text) 0%, var(--text-2) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-sub { font-size: 1.05rem; color: var(--text-2); line-height: 1.6; margin-bottom: 2.5rem; max-width: 440px; }

.hero-features { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-pill {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 7px 14px; background: var(--bg-surface);
    border: 1px solid var(--border); border-radius: 100px;
    font-size: 0.8rem; font-weight: 500; color: var(--text-2);
    transition: all var(--transition);
}
.hero-pill:hover { border-color: var(--border-light); color: var(--text); }
.hero-pill .pill-icon { font-size: 0.95rem; line-height: 1; }
.hero-pill.accent { border-color: rgba(108,159,255,0.2); color: var(--accent); }
.hero-pill.purple { border-color: rgba(167,139,250,0.2); color: var(--purple); }
.hero-version { margin-top: 3rem; font-size: 0.72rem; font-family: var(--mono); color: var(--text-3); letter-spacing: 0.04em; }

/* Auth Panel (right) */
.splash-auth {
    width: 440px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    padding: 2rem; background: var(--bg-surface);
    border-left: 1px solid var(--border);
}
.auth-card { width: 100%; max-width: 340px; }
.auth-card-header { margin-bottom: 2rem; }
.auth-card-header h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 4px; }
.auth-card-header p { font-size: 0.85rem; color: var(--text-3); }

.auth-tabs { display: flex; margin-bottom: 1.5rem; border-bottom: 1px solid var(--border); }
.auth-tab {
    flex: 1; background: none; border: none; color: var(--text-3);
    padding: 10px 0; cursor: pointer; font-family: var(--font);
    font-size: 0.85rem; font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: color var(--transition);
}
.auth-tab:hover { color: var(--text-2); }
.auth-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.auth-error { color: var(--danger); font-size: 0.78rem; min-height: 1.2em; margin: 0.5rem 0; }
.splash-error { color: var(--danger); font-size: 0.78rem; text-align: center; margin-top: 0.5rem; line-height: 1.5; }
.splash-error strong { display: block; font-size: 0.85rem; margin-bottom: 0.25rem; }
.splash-error-hint { color: var(--text-3); font-size: 0.72rem; }
.splash-error-hint a { color: var(--accent); text-decoration: underline; cursor: pointer; }
.auth-actions { margin-top: 1.5rem; }
.auth-footer { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border); text-align: center; }
.auth-footer p { font-size: 0.75rem; color: var(--text-3); line-height: 1.6; }

/* Splash entrance animation */
.hero-logo-row, .hero-headline, .hero-sub, .hero-features, .hero-version,
.auth-card-header, .splash .auth-tabs, #authLoginForm, .splash .auth-actions {
    opacity: 0; transform: translateY(12px);
    animation: fadeUp 0.5s ease forwards;
}
.hero-logo-row    { animation-delay: 0.05s; }
.hero-headline    { animation-delay: 0.12s; }
.hero-sub         { animation-delay: 0.19s; }
.hero-features    { animation-delay: 0.26s; }
.hero-version     { animation-delay: 0.33s; }
.auth-card-header { animation-delay: 0.15s; }
.splash .auth-tabs   { animation-delay: 0.22s; }
#authLoginForm    { animation-delay: 0.29s; }
.splash .auth-actions { animation-delay: 0.36s; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Splash responsive */
@media (max-width: 860px) {
    .splash { flex-direction: column; min-height: 100vh; min-height: 100dvh; overflow-y: auto; }
    .splash-hero { padding: 2.5rem 1.75rem 2rem; min-height: auto; flex: none; }
    .hero-headline { font-size: 1.8rem; }
    .hero-sub { font-size: 0.95rem; margin-bottom: 1.5rem; }
    .hero-version { margin-top: 1.5rem; }
    .splash-auth { width: 100%; border-left: none; border-top: 1px solid var(--border); padding: 2rem 1.75rem; }
    .auth-card { max-width: 400px; }
}
@media (max-width: 480px) {
    .splash-hero { padding: 1.5rem 1.25rem 1rem; }
    .hero-logo-row { gap: 10px; margin-bottom: 0.75rem; }
    .hero-logo-mark { width: 40px; height: 40px; }
    .hero-logo-img { width: 40px; height: 40px; }
    .hero-wordmark { font-size: 1.3rem; }
    .hero-headline { font-size: 1.35rem; margin-bottom: 0.5rem; }
    .hero-sub { font-size: 0.85rem; margin-bottom: 1rem; line-height: 1.5; }
    .hero-features { gap: 6px; }
    .hero-pill { padding: 5px 10px; font-size: 0.72rem; }
    .hero-version { margin-top: 1rem; }
    .splash-auth { padding: 1.5rem 1.25rem; }
    .auth-card-header { margin-bottom: 1rem; }
    .auth-card-header h2 { font-size: 1.1rem; }
    .auth-actions { margin-top: 1rem; }
}

/* ── Forms ────────────────────────────────── */

/* Base form element styling — ensures selects/inputs match the dark theme
   even when not wrapped in .form-group (e.g. role config, inline toolbars) */
select, input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="search"], textarea {
    background: var(--bg-raised); border: 1px solid var(--border);
    color: var(--text); padding: 8px 12px; border-radius: var(--radius);
    font-family: var(--font); font-size: 13px;
    transition: border-color var(--transition);
}
select:focus, input[type="text"]:focus, input[type="email"]:focus,
input[type="password"]:focus, textarea:focus {
    outline: none; border-color: var(--accent);
}
select option { background: var(--bg-surface); color: var(--text); }

.form-group { margin-bottom: 0.75rem; }
.form-group label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 4px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--accent);
}
.form-row { display: flex; gap: 0.75rem; }
.form-row .form-group { flex: 1; }
.form-hint { font-weight: 400; color: var(--text-3); margin-left: 4px; }
.range-input {
    width: 100%; height: 4px; -webkit-appearance: none; appearance: none;
    background: var(--border); border-radius: 2px; outline: none;
    margin: 8px 0 4px; cursor: pointer;
}
.range-input::-webkit-slider-thumb {
    -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%;
    background: var(--accent); border: 2px solid var(--bg-surface); cursor: pointer;
}
.range-input::-moz-range-thumb {
    width: 16px; height: 16px; border-radius: 50%;
    background: var(--accent); border: 2px solid var(--bg-surface); cursor: pointer;
}
.range-labels { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-3); }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 14px; cursor: pointer; margin: 0.5rem 0; color: var(--text-2); }

/* ── Modal ────────────────────────────────── */

.modal-overlay {
    position: fixed; inset: 0; background: var(--overlay);
    display: none; align-items: center; justify-content: center;
    z-index: 1000; backdrop-filter: blur(2px);
    padding: 2rem;  /* keeps modal away from viewport edges at any zoom */
}
.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); width: 90%; max-width: 520px;
    max-height: 100%; display: flex; flex-direction: column;
    animation: modal-in 0.15s ease;
}
.modal-wide { max-width: 700px; }
@keyframes modal-in { from { opacity: 0; transform: translateY(-8px); } }

.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 16px; font-weight: 600; }
.modal-close {
    background: none; border: none; color: var(--text-3); font-size: 18px;
    cursor: pointer; padding: 2px 6px; border-radius: 4px;
    transition: color var(--transition);
}
.modal-close:hover { color: var(--text); }
.modal-body { flex: 1; overflow-y: auto; padding: 16px 20px; }
.modal-footer {
    padding: 12px 20px; border-top: 1px solid var(--border);
    display: flex; justify-content: flex-end; gap: 0.5rem;
}

.settings-section { margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.settings-section:last-child { border-bottom: none; margin-bottom: 0; }
.settings-section h3 { font-size: 12px; font-weight: 600; color: var(--text-3); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.avatar-upload-row { display: flex; align-items: center; gap: 14px; margin-bottom: 1rem; }
.avatar-preview {
    width: 56px; height: 56px; border-radius: 50%; background: var(--bg-raised);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; font-weight: 600; color: var(--accent); flex-shrink: 0;
    overflow: hidden; border: 2px solid var(--border);
}
.avatar-preview img { width: 100%; height: 100%; object-fit: cover; }
.avatar-actions { display: flex; flex-direction: column; gap: 4px; }
.avatar-actions .form-hint { font-size: 11px; margin-left: 0; }
.avatar-preview-sm { width: 42px; height: 42px; font-size: 18px; }

/* Modal tab bars — shared horizontal scroll with arrow navigation */
.modal-tabs-wrap {
    position: relative; flex-shrink: 0;
    border-bottom: 1px solid var(--border); background: var(--bg-raised);
}
.modal-tabs {
    display: flex; padding: 0 16px;
    border-bottom: 1px solid var(--border); background: var(--bg-raised);
    overflow-x: auto; overflow-y: hidden;
    scrollbar-width: none; -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    flex-shrink: 0;
}
.modal-tabs::-webkit-scrollbar { display: none; }
/* When wrapped, the wrapper owns the border */
.modal-tabs-wrap .modal-tabs { border-bottom: none; background: none; }

.tab-arrow {
    position: absolute; top: 0; bottom: 1px; /* 1px for border */ width: 28px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-raised); border: none; color: var(--text-2);
    cursor: pointer; font-size: 16px; z-index: 2; opacity: 0;
    pointer-events: none; transition: opacity 0.15s ease;
}
.tab-arrow.visible { opacity: 1; pointer-events: auto; }
.tab-arrow:hover { color: var(--accent); }
.tab-arrow-left { left: 0; padding-left: 2px; box-shadow: 4px 0 8px -2px rgba(0,0,0,0.15); }
.tab-arrow-right { right: 0; padding-right: 2px; box-shadow: -4px 0 8px -2px rgba(0,0,0,0.15); }

/* Settings tabs */
.settings-tabs { gap: 0; }
.settings-tabs .settings-tab {
    padding: 10px 14px; background: none; border: none; border-radius: 0;
    color: var(--text-3); cursor: pointer; font-size: 13px; font-family: var(--font);
    border-bottom: 2px solid transparent; transition: color var(--transition);
    outline: none; -webkit-appearance: none; appearance: none;
    white-space: nowrap; flex-shrink: 0;
}
.settings-tabs .settings-tab:hover { color: var(--text-2); }
.settings-tabs .settings-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.settings-notice {
    background: rgba(234,179,8,0.08); border: 1px solid var(--warning-dim);
    border-radius: var(--radius); padding: 10px 14px; font-size: 13px;
    color: var(--warning); display: flex; align-items: center; gap: 8px;
    margin-top: 1rem;
}

/* Providers */
.provider-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 0; border-bottom: 1px solid var(--border);
}
.provider-name { font-weight: 500; font-size: 13px; }
.provider-meta { font-size: 11px; color: var(--text-3); margin-left: 8px; }
.provider-actions { display: flex; align-items: center; gap: 8px; }
.badge-global { font-size: 10px; color: var(--text-3); background: var(--bg-raised); padding: 2px 8px; border-radius: 4px; }

/* Admin panel (fullscreen) */
.admin-panel {
    position: fixed; z-index: 1000;
    top: var(--banner-top-height); right: 0;
    bottom: var(--banner-bottom-height); left: 0;
    background: var(--bg); display: flex; flex-direction: column;
}
.admin-topbar {
    display: flex; align-items: center; padding: 0 1rem; height: 48px;
    border-bottom: 1px solid var(--border); background: var(--bg-surface); flex-shrink: 0;
}
.admin-back {
    background: none; border: none; color: var(--text-3); cursor: pointer;
    font-size: 14px; padding: 4px 10px; border-radius: 4px; font-family: var(--font);
}
.admin-back:hover { color: var(--accent); background: var(--bg-raised); }
.admin-title { font-size: 16px; font-weight: 600; margin-left: 1rem; flex: 1; }
.admin-user { font-size: 12px; color: var(--text-3); }

.admin-categories {
    display: flex; gap: 0; border-bottom: 1px solid var(--border);
    background: var(--bg-surface); padding: 0 1rem; flex-shrink: 0;
}
.admin-cat {
    background: none; border: none; border-bottom: 2px solid transparent;
    color: var(--text-3); padding: 10px 20px; cursor: pointer;
    font-size: 14px; font-weight: 500; font-family: var(--font);
    transition: color 0.15s, border-color 0.15s; outline: none;
}
.admin-cat:hover { color: var(--text-2); }
.admin-cat.active { color: var(--accent); border-bottom-color: var(--accent); }

.admin-body { display: flex; flex: 1; overflow: hidden; }

.admin-sidebar {
    width: 160px; flex-shrink: 0; border-right: 1px solid var(--border);
    background: var(--bg-surface); padding: 0.75rem 0; overflow-y: auto;
}
.admin-sidebar button {
    display: block; width: 100%; text-align: left; background: none; border: none;
    padding: 8px 20px; color: var(--text-3); cursor: pointer;
    font-size: 13px; font-family: var(--font); border-left: 3px solid transparent;
    transition: color 0.1s, background 0.1s;
}
.admin-sidebar button:hover { color: var(--text-2); background: var(--bg-raised); }
.admin-sidebar button.active { color: var(--accent); border-left-color: var(--accent); background: var(--bg-raised); }

.admin-main { flex: 1; overflow-y: auto; padding: 1.5rem 2rem; }
.admin-section-content { /* replaces .admin-tab-content */ }

/* Admin shared */
/* admin-tab: still used by team admin modal */
.admin-tab {
    padding: 10px 14px; background: none; border: none; color: var(--text-3);
    cursor: pointer; font-size: 13px; border-bottom: 2px solid transparent;
    white-space: nowrap; flex-shrink: 0; transition: color var(--transition);
    outline: none; font-family: var(--font);
}
.admin-tab:hover { color: var(--text-2); }
.admin-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.admin-toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 1rem; }
.admin-hint { font-size: 12px; color: var(--text-3); }
.admin-inline-form {
    background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1rem; margin-bottom: 1rem;
}
.ext-edit-form {
    background: var(--bg); padding: 12px 0;
}
.ext-edit-form textarea {
    resize: vertical; min-height: 60px;
    line-height: 1.5; white-space: pre; overflow-wrap: normal; overflow-x: auto;
}

.admin-user-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px;
    min-height: 52px;
}
.admin-user-info { flex: 1; }
.admin-user-email { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.admin-user-actions { display: flex; gap: 6px; flex-shrink: 0; }
.admin-user-actions button { background: none; border: 1px solid var(--border); color: var(--text-2); border-radius: 4px; padding: 4px 10px; font-size: 12px; cursor: pointer; min-width: 68px; text-align: center; }
.admin-user-actions button:hover { border-color: var(--border-light); color: var(--text); }
.admin-user-actions .btn-danger { color: var(--danger); }
.admin-user-actions .btn-danger:hover { border-color: var(--danger); }
.inline-select { background: var(--bg-surface); border: 1px solid var(--border); color: var(--text-2); border-radius: 4px; padding: 3px 8px; font-size: 12px; cursor: pointer; }

.admin-model-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px; min-height: 44px; }
.admin-model-row .model-name { flex: 1; font-weight: 500; }
.admin-model-row .model-caps-inline { display: flex; gap: 3px; }
.admin-model-row .provider-meta { min-width: 80px; text-align: right; color: var(--text-3); font-size: 12px; }
.admin-model-toggle { background: none; border: 1px solid var(--border); border-radius: 4px; padding: 4px 10px; font-size: 12px; cursor: pointer; color: var(--text-2); min-width: 82px; text-align: center; }
.admin-model-toggle:hover { border-color: var(--accent); color: var(--accent); }
.admin-model-toggle.enabled { border-color: var(--success); color: var(--success); }
.admin-model-toggle.team { border-color: var(--accent); color: var(--accent); }
.model-list-item.model-hidden { opacity: 0.5; }
.model-list-item.model-hidden .model-name { text-decoration: line-through; }

.admin-provider-row {
    display: flex; align-items: center; gap: 12px; padding: 10px 0;
    border-bottom: 1px solid var(--border); font-size: 14px;
}
.admin-provider-row .provider-name { font-weight: 500; flex: 1; }
.admin-provider-row .provider-endpoint { font-size: 12px; color: var(--text-3); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.btn-edit { background: none; border: none; color: var(--text-3); cursor: pointer; font-size: 16px; padding: 2px 6px; }
.btn-edit:hover { color: var(--accent); }
.admin-provider-row .btn-delete { background: none; border: none; color: var(--text-3); cursor: pointer; font-size: 16px; padding: 2px 6px; }
.admin-provider-row .btn-delete:hover { color: var(--danger); }

.admin-preset-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.admin-preset-row .preset-info { flex: 1; min-width: 0; }
.preset-row-avatar { width: 22px; height: 22px; border-radius: 50%; object-fit: cover; vertical-align: middle; margin-right: 6px; }
.preset-row-icon { margin-right: 4px; }
.admin-preset-row .preset-meta { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.admin-preset-row .preset-desc { font-size: 12px; color: var(--text-2); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.admin-preset-row .preset-actions { display: flex; gap: 6px; align-items: center; flex-shrink: 0; }
.admin-preset-row .btn-delete { background: none; border: none; color: var(--text-3); cursor: pointer; font-size: 16px; padding: 2px 6px; }
.admin-preset-row .btn-delete:hover { color: var(--danger); }
.badge-user { font-size: 10px; padding: 1px 6px; border-radius: 3px; background: var(--accent-dim); color: var(--accent); }

/* Stats cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.stat-card {
    background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 14px 16px; text-align: center;
}
.stat-card .stat-value { font-size: 1.6rem; font-weight: 700; color: var(--text); line-height: 1.2; }
.stat-card .stat-label { font-size: 0.78rem; color: var(--text-3); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.04em; }

/* Audit log */
.audit-row { padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.audit-row:last-child { border-bottom: none; }
.audit-main { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.audit-action { font-weight: 600; color: var(--accent); font-family: var(--font-mono, monospace); font-size: 12px; }
.audit-actor { color: var(--text); }
.audit-resource { color: var(--text-3); font-family: var(--font-mono, monospace); font-size: 11px; }
.audit-meta { display: flex; gap: 10px; margin-top: 2px; font-size: 11px; color: var(--text-3); flex-wrap: wrap; }
.audit-details { color: var(--text-2); }
.audit-ip { font-family: var(--font-mono, monospace); }
.pagination-row { display: flex; align-items: center; justify-content: center; gap: 12px; }

/* Banner preview */
.banner-preview {
    margin-top: 0.75rem; padding: 6px 16px; text-align: center;
    font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
    border-radius: var(--radius);
}
.color-input-wrap { display: flex; align-items: center; gap: 8px; }
.color-input-wrap input[type="color"] {
    width: 36px; height: 32px; border: 1px solid var(--border);
    border-radius: var(--radius); background: var(--bg);
    cursor: pointer; padding: 2px;
}
.color-hex {
    width: 80px; background: var(--bg-raised); border: 1px solid var(--border);
    color: var(--text); padding: 6px 10px; border-radius: var(--radius);
    font-family: var(--mono); font-size: 12px;
}
.section-hint { font-size: 13px; color: var(--text-3); margin-bottom: 0.75rem; }

/* User model list */
.model-list-grid { display: flex; flex-direction: column; gap: 2px; }
.model-list-item {
    display: flex; align-items: center; gap: 10px; padding: 8px 10px;
    border-radius: var(--radius); font-size: 13px; cursor: default;
}
.model-list-item:hover { background: var(--bg-hover); }
.model-list-item .model-name { flex: 1; font-weight: 500; }
.model-list-item .model-provider { font-size: 12px; color: var(--text-3); }
.model-list-item .model-caps-inline { display: flex; gap: 3px; }

.badge-admin { background: var(--accent); color: var(--text-on-color); font-size: 10px; padding: 1px 8px; border-radius: 4px; }
.badge-user { background: var(--bg-raised); color: var(--text-3); font-size: 10px; padding: 1px 8px; border-radius: 4px; }
.badge-inactive { background: var(--danger); color: var(--text-on-color); font-size: 10px; padding: 1px 8px; border-radius: 4px; }
.badge-pending { background: var(--warning); color: var(--text-on-warning); font-size: 10px; padding: 1px 8px; border-radius: 4px; }
.badge-team { background: var(--accent-dim); color: var(--accent-light); font-size: 10px; padding: 1px 8px; border-radius: 4px; margin-left: 2px; }
.admin-approve-form { padding: 10px 12px; margin: -4px 0 8px; background: var(--glass); border-radius: 0 0 8px 8px; border-top: 1px solid var(--border); }
.admin-approve-form .checkbox-label { display: block; margin: 2px 0; }
.btn-approve { background: var(--success-dim); color: var(--success-light); border: 1px solid rgba(34,197,94,0.3); border-radius: 4px; padding: 3px 10px; cursor: pointer; font-size: 12px; }
.team-card { padding: 8px 10px; background: var(--glass); border-radius: 6px; margin-bottom: 6px; }
.team-card-info { display: flex; align-items: center; gap: 8px; }
.team-admin-back {
    cursor: pointer; margin-right: 4px; opacity: 0.5;
    transition: opacity var(--transition);
}
.team-admin-back:hover { opacity: 1; }
.team-tab-content { padding: 0; }
.badge-private { background: var(--purple); color: var(--text-on-color); font-size: 10px; padding: 1px 8px; border-radius: 4px; }
.badge-success { background: var(--success-dim); color: var(--success-light); font-size: 10px; padding: 1px 8px; border-radius: 4px; }
.badge-warning { background: var(--warning-dim); color: var(--warning-light); font-size: 10px; padding: 1px 8px; border-radius: 4px; }
.badge-danger { background: var(--danger-dim); color: var(--danger-light); font-size: 10px; padding: 1px 8px; border-radius: 4px; }
.admin-user-row.user-inactive { opacity: 0.7; }
.loading { color: var(--text-3); font-size: 13px; padding: 0.5rem; }
.error-hint { color: var(--danger); font-size: 13px; padding: 0.5rem; }
.empty-hint { color: var(--text-3); font-size: 13px; text-align: center; padding: 1rem; }

/* ── Toast ────────────────────────────────── */

.toast-container { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); z-index: 10000; display: flex; flex-direction: column; gap: 0.5rem; }
.toast {
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 8px 16px; font-size: 13px;
    display: flex; align-items: center; gap: 8px;
    animation: toast-in 0.25s ease; box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.toast.error { border-color: var(--danger); }
.toast.warning { border-color: var(--warning); }
.toast.success { border-color: var(--success); }
.toast button { background: none; border: none; color: var(--text-3); cursor: pointer; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* ── Debug Modal ─────────────────────────── */

.debug-modal { max-width: 900px; height: 100%; overflow: hidden; }
.debug-tabs { }
.debug-tab { padding: 8px 12px; background: none; border: none; color: var(--text-3); cursor: pointer; font-size: 12px; border-bottom: 2px solid transparent; white-space: nowrap; flex-shrink: 0; }
.debug-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.debug-modal-body { flex: 1; overflow: hidden; padding: 0 !important; display: flex; flex-direction: column; }
.debug-tab-content { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.debug-toolbar { display: flex; gap: 1rem; padding: 6px 12px; border-bottom: 1px solid var(--border); font-size: 11px; }
.debug-check { display: flex; align-items: center; gap: 4px; color: var(--text-3); cursor: pointer; }
.debug-content { flex: 1; overflow-y: auto; padding: 6px; font-family: var(--mono); font-size: 11px; line-height: 1.5; }
.debug-entry { padding: 1px 6px; border-bottom: 1px solid rgba(128,128,128,0.06); white-space: pre-wrap; word-break: break-all; }
.debug-time { color: var(--text-3); opacity: 0.6; font-size: 10px; }
.debug-msg { color: var(--text); }
.debug-empty { color: var(--text-3); text-align: center; padding: 2rem; }
.debug-net-entry { border-bottom: 1px solid var(--border); }
.debug-net-entry summary { padding: 6px; cursor: pointer; font-size: 11px; }
.debug-net-method { font-weight: bold; color: var(--accent); }
.debug-net-url { color: var(--text); word-break: break-all; }
.debug-net-detail { padding: 6px 12px; font-size: 11px; }
.debug-pre { white-space: pre-wrap; word-break: break-all; max-height: 200px; overflow: auto; padding: 6px; background: rgba(0,0,0,0.2); border-radius: 4px; margin: 4px 0; }
.debug-state-pre { max-height: none; margin: 0; }
.debug-footer { display: flex; align-items: center; }

/* ── Sidebar Notes Button ───────────────── */

.sidebar-notes-btn {
    padding: 4px 8px; border-top: 1px solid var(--border);
    flex-shrink: 0;
}
.sb-notes {
    display: flex; align-items: center; gap: 8px; width: 100%;
    padding: 8px 12px; background: none; border: none;
    border-radius: var(--radius); color: var(--text-2);
    cursor: pointer; font-size: 13px; font-family: var(--font);
    transition: background var(--transition), color var(--transition);
}
.sb-notes:hover { background: var(--bg-hover); color: var(--text); }
.sidebar.collapsed .sidebar-notes-btn .sb-label { display: none; }
.sidebar.collapsed .sb-notes { justify-content: center; padding: 8px; }

/* ── Notes (inside side panel) ──────────── */

/* Notes toolbar and selection bar now live inside the side panel */

.notes-toolbar {
    display: flex; gap: 8px; padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-raised);
}
.notes-search-wrap {
    display: flex; align-items: center; gap: 6px; flex: 1;
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 0 10px;
}
.notes-search-wrap svg { color: var(--text-3); flex-shrink: 0; }
.notes-search-wrap input {
    flex: 1; background: none; border: none; color: var(--text);
    font-size: 13px; font-family: var(--font); padding: 6px 0;
    outline: none;
}
.notes-filter-select {
    background: var(--bg-surface); border: 1px solid var(--border);
    border-radius: var(--radius); color: var(--text); font-size: 12px;
    padding: 4px 8px; font-family: var(--font); cursor: pointer;
    max-width: 160px;
}

/* Notes toolbar and selection bar now live inside the side panel */

/* Selection bar */
.notes-selection-bar {
    display: flex; align-items: center; gap: 10px;
    padding: 6px 12px;
    background: var(--accent-dim); border-bottom: 1px solid var(--border);
    font-size: 12px;
}
.notes-select-all {
    display: flex; align-items: center; gap: 6px;
    color: var(--text-2); cursor: pointer; font-size: 12px;
}
.notes-select-all input { cursor: pointer; }

.notes-list { padding: 8px; }
.notes-empty, .notes-loading {
    text-align: center; color: var(--text-3); padding: 2rem;
    font-size: 13px;
}

.note-item {
    display: flex; align-items: flex-start; gap: 8px;
    padding: 10px 12px; border-radius: var(--radius);
    cursor: pointer; border: 1px solid transparent;
    transition: background var(--transition), border-color var(--transition);
}
.note-item:hover {
    background: var(--bg-hover); border-color: var(--border);
}
.note-item.selected {
    background: var(--accent-dim); border-color: var(--accent);
}
.note-select-col { flex-shrink: 0; padding-top: 2px; }
.note-checkbox { cursor: pointer; accent-color: var(--accent); }
.note-content-col { flex: 1; min-width: 0; }
.note-item-header {
    display: flex; align-items: baseline; justify-content: space-between;
    gap: 8px; margin-bottom: 2px;
}
.note-item-title {
    font-size: 13px; font-weight: 600; color: var(--text);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.note-item-time { font-size: 11px; color: var(--text-3); flex-shrink: 0; }
.note-preview {
    font-size: 12px; color: var(--text-3); line-height: 1.4;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    max-height: 1.4em;
}
.note-headline {
    font-size: 12px; color: var(--text-3); line-height: 1.4;
}
.note-headline mark {
    background: var(--accent-dim); color: var(--accent);
    padding: 0 2px; border-radius: 2px;
}
.note-item-meta {
    display: flex; align-items: center; gap: 4px;
    margin-top: 4px; flex-wrap: wrap;
}
.note-folder {
    font-size: 11px; color: var(--text-3); font-family: var(--mono);
    background: var(--bg-raised); padding: 1px 6px; border-radius: 3px;
}
.note-tag {
    font-size: 10px; color: var(--purple); background: var(--purple-dim);
    padding: 1px 6px; border-radius: 3px;
}

/* Notes editor */
.notes-editor { padding: 12px; }
.notes-editor-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 8px;
}

/* Note read mode */
.note-read-title {
    font-size: 18px; font-weight: 600; color: var(--text);
    margin: 0 0 6px; line-height: 1.3;
}
.note-read-meta {
    display: flex; align-items: center; gap: 4px; flex-wrap: wrap;
    margin-bottom: 12px;
}
.note-read-content {
    font-size: var(--msg-font, 14px); line-height: 1.7;
    max-height: 50vh; overflow-y: auto;
    padding: 12px; background: var(--bg-surface);
    border: 1px solid var(--border); border-radius: var(--radius);
}
.notes-back-btn {
    background: none; border: none; color: var(--text-3);
    cursor: pointer; font-size: 12px; font-family: var(--font);
    padding: 4px 0; margin-bottom: 8px;
    transition: color var(--transition);
}
.notes-back-btn:hover { color: var(--text); }
.notes-title-input {
    font-size: 16px !important; font-weight: 600;
    border: 1px solid var(--border) !important;
    padding: 8px 10px !important;
}
.notes-folder-input, .notes-tags-input {
    font-size: 12px !important; font-family: var(--mono);
}
.notes-content-input {
    font-size: 13px !important; line-height: 1.6 !important;
    min-height: 200px; resize: vertical;
    font-family: var(--mono); border: 1px solid var(--border) !important;
}
.notes-editor input, .notes-editor textarea {
    width: 100%; background: var(--bg-surface); color: var(--text);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 6px 10px; font-family: var(--font); font-size: var(--msg-font, 14px);
    outline: none; transition: border-color var(--transition);
}
.notes-editor input:focus, .notes-editor textarea:focus {
    border-color: var(--accent);
}
.notes-editor-actions {
    display: flex; gap: 8px; margin-top: 12px;
}

/* ── Sidebar Search ──────────────────────── */

.sidebar-search {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 10px; margin: 4px 6px;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius); transition: border-color var(--transition);
}
.sidebar-search:focus-within { border-color: var(--accent); }
.sidebar-search svg { color: var(--text-3); flex-shrink: 0; }
.sidebar-search input {
    flex: 1; background: none; border: none; color: var(--text);
    font-size: 12px; font-family: var(--font); outline: none;
    min-width: 0;
}
.sidebar-search input::placeholder { color: var(--text-3); }
.sidebar-search-clear {
    background: none; border: none; color: var(--text-3); cursor: pointer;
    font-size: 11px; padding: 2px 4px; border-radius: 4px;
    transition: color var(--transition); display: none;
}
.sidebar-search-clear:hover { color: var(--text); }
.sidebar-search.has-value .sidebar-search-clear { display: block; }
.sidebar.collapsed .sidebar-search { display: none; }

.sidebar-search-empty {
    color: var(--text-3); font-size: 12px; text-align: center;
    padding: 1.5rem 0.5rem;
}

/* ── Command Palette ─────────────────────── */

.cmd-palette-overlay {
    position: fixed; inset: 0; background: var(--overlay);
    display: none; align-items: flex-start; justify-content: center;
    z-index: 2000; backdrop-filter: blur(4px);
    padding-top: min(20vh, 160px);
}
.cmd-palette-overlay.active { display: flex; }

.cmd-palette {
    background: var(--bg-surface); border: 1px solid var(--border-light);
    border-radius: var(--radius-lg); width: 90%; max-width: 480px;
    box-shadow: 0 16px 64px rgba(0,0,0,0.6);
    animation: modal-in 0.12s ease;
    overflow: hidden;
}

.cmd-input-wrap {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; border-bottom: 1px solid var(--border);
}
.cmd-input-wrap svg { color: var(--text-3); flex-shrink: 0; }
.cmd-input-wrap input {
    flex: 1; background: none; border: none; color: var(--text);
    font-size: 15px; font-family: var(--font); outline: none;
}
.cmd-input-wrap input::placeholder { color: var(--text-3); }
.cmd-kbd {
    font-size: 10px; font-family: var(--mono); color: var(--text-3);
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 4px; padding: 2px 6px; flex-shrink: 0;
}

.cmd-results {
    max-height: 320px; overflow-y: auto;
    padding: 4px;
}

.cmd-item {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; border-radius: var(--radius);
    cursor: pointer; font-size: 13px; color: var(--text-2);
    transition: background 60ms ease, color 60ms ease;
}
.cmd-item:hover, .cmd-item.active {
    background: var(--accent-dim); color: var(--text);
}
.cmd-item svg { flex-shrink: 0; color: var(--text-3); }
.cmd-item.active svg { color: var(--accent); }
.cmd-item-label { flex: 1; }
.cmd-item-hint {
    font-size: 11px; color: var(--text-3); flex-shrink: 0;
}
.cmd-item.active .cmd-item-hint { color: var(--accent); }
.cmd-group-label {
    font-size: 10px; font-weight: 600; color: var(--text-3);
    padding: 8px 12px 4px; text-transform: uppercase; letter-spacing: 0.5px;
}

.cmd-footer {
    display: flex; align-items: center; gap: 16px;
    padding: 8px 16px; border-top: 1px solid var(--border);
    font-size: 11px; color: var(--text-3);
}
.cmd-footer kbd {
    font-size: 10px; font-family: var(--mono);
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 3px; padding: 1px 4px;
}

/* ── PWA Install Banner ──────────────────── */

.pwa-install-banner {
    position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%);
    background: var(--bg-raised); border: 1px solid var(--border-light);
    border-radius: var(--radius-lg); padding: 10px 16px;
    display: flex; align-items: center; gap: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5); z-index: 3000;
    font-size: 13px; color: var(--text-2);
    animation: pwa-banner-in 0.3s ease;
    max-width: 90vw;
}
@keyframes pwa-banner-in { from { opacity: 0; transform: translateX(-50%) translateY(20px); } }

/* ── Confirm Dialog ──────────────────────── */

.confirm-overlay {
    position: fixed; inset: 0; z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    background: var(--overlay);
    animation: fade-in 0.12s ease;
}
.confirm-dialog {
    background: var(--bg-raised); border: 1px solid var(--border-light);
    border-radius: var(--radius-lg); padding: 0;
    min-width: 320px; max-width: 440px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    animation: confirm-in 0.15s ease;
}
.confirm-header {
    padding: 16px 20px 0; font-weight: 600; font-size: 15px; color: var(--text);
}
.confirm-body {
    padding: 12px 20px 20px; font-size: 13px; color: var(--text-2);
    line-height: 1.5; white-space: pre-wrap;
}
.confirm-footer {
    display: flex; justify-content: flex-end; gap: 8px;
    padding: 0 20px 16px;
}
@keyframes confirm-in { from { opacity: 0; transform: scale(0.95); } }
@keyframes fade-in { from { opacity: 0; } }

/* ── Popup Menu (shared base) ───────────── */

.popup-menu {
    display: none; position: absolute; z-index: 200;
    background: var(--bg-raised); border: 1px solid var(--border-light);
    border-radius: var(--radius); padding: 4px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
    min-width: 160px;
}
.popup-menu.open { display: block; }
.popup-menu-item {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; border-radius: var(--radius);
    background: none; border: none; color: var(--text-2);
    cursor: pointer; font-size: 13px; width: 100%;
    transition: background var(--transition), color var(--transition);
}
.popup-menu-item:hover { background: var(--bg-hover); color: var(--text); }
.popup-menu-item.disabled { opacity: 0.4; pointer-events: none; }
.popup-menu-danger:hover { color: var(--danger); }
.popup-menu-icon { flex-shrink: 0; display: flex; align-items: center; }
.popup-menu-hint { margin-left: auto; font-size: 11px; color: var(--text-3); }
.popup-menu-divider { height: 1px; background: var(--border); margin: 4px 8px; }

/* ── Tools Toggle ────────────────────────── */

.tools-toggle-wrap { position: relative; display: flex; align-items: center; }
.tools-toggle-btn.has-disabled { color: var(--text-3); }
.tools-toggle-btn.has-disabled::after {
    content: ''; position: absolute; top: 4px; right: 4px;
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--warning);
}
.tools-popup { bottom: 100%; left: 0; margin-bottom: 8px; min-width: 210px; }
.tools-popup-category, .tools-popup-tool {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; border-radius: var(--radius);
    cursor: pointer; font-size: 13px; color: var(--text-2);
    transition: background var(--transition);
}
.tools-popup-category:hover, .tools-popup-tool:hover { background: var(--bg-hover); }
.tools-popup-tool { padding-left: 36px; font-size: 12px; } /* indented children */
.tools-popup-check {
    width: 16px; height: 16px; border-radius: 3px;
    border: 1.5px solid var(--border); flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    transition: background var(--transition), border-color var(--transition);
}
/* Fully enabled */
.tools-popup-category.enabled .tools-popup-check,
.tools-popup-tool.enabled .tools-popup-check {
    background: var(--accent); border-color: var(--accent);
}
.tools-popup-category.enabled .tools-popup-check::after,
.tools-popup-tool.enabled .tools-popup-check::after {
    content: '✓'; color: var(--text-on-color); font-size: 11px; font-weight: 700;
}
/* Partial (indeterminate) */
.tools-popup-category.partial .tools-popup-check {
    background: var(--accent-dim); border-color: var(--accent);
}
.tools-popup-category.partial .tools-popup-check::after {
    content: '─'; color: var(--accent); font-size: 12px; font-weight: 700;
}
.tools-popup-label { flex: 1; }
.tools-popup-expand {
    font-size: 14px; color: var(--text-3); cursor: pointer;
    transition: transform var(--transition); padding: 0 2px;
    user-select: none;
}
.tools-popup-expand.open { transform: rotate(90deg); }

/* ── Knowledge Bases ────────────────────── */

/* Toggle button in input bar */
.kb-toggle-wrap {
    position: relative; display: flex; align-items: center;
}
.kb-toggle-btn.has-active {
    color: var(--accent);
}

/* Channel KB popup */
.kb-popup {
    bottom: 100%; left: 0; margin-bottom: 8px;
    min-width: 240px; max-height: 300px; overflow-y: auto;
}
.kb-popup-header {
    padding: 8px 12px 4px; font-size: 12px; font-weight: 600;
    color: var(--text-2); text-transform: uppercase; letter-spacing: 0.5px;
}
.kb-popup-item {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 12px; cursor: pointer;
    transition: background var(--transition);
}
.kb-popup-item:hover { background: var(--bg-hover); }
.kb-popup-item .kb-popup-check {
    width: 16px; height: 16px; border-radius: 3px;
    border: 1.5px solid var(--border); flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
}
.kb-popup-item.enabled .kb-popup-check {
    background: var(--accent); border-color: var(--accent);
}
.kb-popup-item.enabled .kb-popup-check::after {
    content: '✓'; font-size: 11px; color: #fff;
}
.kb-popup-label { display: flex; flex-direction: column; min-width: 0; }
.kb-popup-name {
    font-size: 13px; color: var(--text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.kb-popup-meta { font-size: 11px; color: var(--text-3); }
.kb-popup-empty, .kb-popup-loading {
    padding: 16px; text-align: center; font-size: 13px; color: var(--text-3);
}

/* KB management panel (settings tab) */
.kb-manage-header {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 12px;
}
.kb-manage-header h3 { flex: 1; margin: 0; font-size: 15px; }
.kb-manage-summary { font-size: 11px; color: var(--text-3); margin-bottom: 10px; padding: 0 2px; }
.kb-manage-list { display: flex; flex-direction: column; gap: 2px; }
.kb-manage-item {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 10px; border-radius: var(--radius);
    background: var(--bg-2); transition: background var(--transition);
}
.kb-manage-item:hover { background: var(--bg-hover); }
.kb-manage-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.kb-manage-name { font-size: 13px; font-weight: 500; color: var(--text); }
.kb-manage-desc { font-size: 12px; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kb-manage-stats { font-size: 11px; color: var(--text-3); }
.kb-manage-desc-block { font-size: 12px; color: var(--text-3); margin-bottom: 12px; }
.kb-manage-actions { display: flex; gap: 4px; flex-shrink: 0; }
.kb-manage-empty, .kb-manage-loading {
    padding: 20px; text-align: center; font-size: 13px; color: var(--text-3);
}
.kb-doc-item[data-doc-status="pending"] .kb-manage-name,
.kb-doc-item[data-doc-status="extracting"] .kb-manage-name,
.kb-doc-item[data-doc-status="chunking"] .kb-manage-name,
.kb-doc-item[data-doc-status="embedding"] .kb-manage-name {
    opacity: 0.7;
}

/* ── Responsive ──────────────────────────── */

.mobile-menu-btn {
    display: none; align-items: center; justify-content: center;
    background: none; border: none; color: var(--text-2);
    cursor: pointer; padding: 4px; border-radius: var(--radius);
    transition: color var(--transition);
}
.mobile-menu-btn:hover { color: var(--text); }
.sidebar-overlay {
    display: none; position: fixed; inset: 0; z-index: 99;
    background: var(--overlay);
}

@media (max-width: 768px) {
    .sidebar { position: fixed; z-index: 100; height: 100%; transition: width 0.2s ease; }
    .sidebar.collapsed { width: 0; border: none; overflow: hidden; }
    .msg-inner { padding: 0 1rem; }
    .model-caps { display: none; }
    .input-area { padding: 0 0.5rem 0.5rem; }
    .input-wrap textarea { font-size: 16px; } /* prevent iOS zoom */
    .mobile-menu-btn { display: flex; }
    .modal-overlay { padding: 0.75rem; }
    .modal { width: 100%; }
    .tab-arrow { width: 36px; font-size: 20px; } /* larger touch target */
    .modal-tabs { padding: 0 12px; }
    .admin-sidebar { width: 48px; padding: 0.5rem 0; }
    .admin-sidebar button { padding: 8px 0; text-align: center; font-size: 11px; border-left: none; border-bottom: 2px solid transparent; }
    .admin-sidebar button.active { border-bottom-color: var(--accent); border-left: none; }
    .admin-main { padding: 1rem; }
    .admin-cat { padding: 10px 12px; font-size: 13px; }
}