/* ==========================================
   Chat Switchboard – Styles (v0.5.0)
   ========================================== */

:root {
    --bg: #0f0f13;
    --bg-secondary: #1a1a24;
    --bg-tertiary: #252533;
    --border: #2a2a3a;
    --text: #e4e4ef;
    --text-secondary: #8888a0;
    --accent: #6c9fff;
    --accent-hover: #8ab4ff;
    --danger: #e74c3c;
    --success: #2ecc71;
    --warning: #f39c12;
    --radius: 8px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: 'SF Mono', 'Fira Code', Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); background: var(--bg); color: var(--text); height: 100vh; overflow: hidden; }
a { color: var(--accent); }

/* ── Layout ──────────────────────────────── */

#appContainer { display: flex; flex-direction: column; height: 100vh; }

.header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 1rem; height: 48px; background: var(--bg-secondary);
    border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.header-title { font-size: 1rem; font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 0.5rem; }

.main { display: flex; flex: 1; overflow: hidden; }

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

.sidebar {
    width: 260px; background: var(--bg-secondary); border-right: 1px solid var(--border);
    display: flex; flex-direction: column; padding: 0.75rem; gap: 0.5rem; flex-shrink: 0;
    overflow-y: auto;
}
.new-chat-btn { width: 100%; }
.chat-history { flex: 1; overflow-y: auto; }

.chat-item {
    display: flex; align-items: center; padding: 0.5rem 0.75rem; border-radius: var(--radius);
    cursor: pointer; font-size: 0.85rem; gap: 0.5rem; transition: background 0.15s;
}
.chat-item:hover { background: var(--bg-tertiary); }
.chat-item.active { background: var(--bg-tertiary); border-left: 2px solid var(--accent); }
.chat-item-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-item-delete {
    opacity: 0; background: none; border: none; color: var(--text-secondary);
    cursor: pointer; font-size: 0.75rem; padding: 2px 4px; transition: opacity 0.15s;
}
.chat-item:hover .chat-item-delete { opacity: 1; }

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

.chat-area { flex: 1; display: flex; flex-direction: column; min-width: 0; overflow: hidden; }
.chat-messages { flex: 1; overflow-y: auto; padding: 1rem; }

.message { margin-bottom: 1rem; }
.message-inner { display: flex; gap: 0.75rem; max-width: 800px; margin: 0 auto; }
.message-avatar { font-size: 1.25rem; flex-shrink: 0; }
.message-body { flex: 1; min-width: 0; }
.message-head { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.25rem; }
.message-role { font-weight: 600; font-size: 0.85rem; }
.message-time { font-size: 0.7rem; color: var(--text-secondary); }
.message-copy {
    background: none; border: none; cursor: pointer; font-size: 0.75rem;
    opacity: 0; transition: opacity 0.15s; margin-left: auto;
}
.message:hover .message-copy { opacity: 0.7; }
.message-text { font-size: 0.9rem; line-height: 1.6; word-wrap: break-word; }

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

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

.message-text pre {
    background: var(--bg-tertiary); padding: 0.75rem; border-radius: var(--radius);
    overflow-x: auto; margin: 0.5rem 0; position: relative; font-size: 0.8rem;
}
.message-text code { font-family: var(--mono); font-size: 0.85em; background: var(--bg-tertiary); padding: 0.15em 0.35em; border-radius: 3px; }
.message-text pre code { font-size: inherit; background: none; padding: 0; }
.copy-code-btn {
    position: absolute; top: 4px; right: 4px; background: var(--bg-secondary);
    border: 1px solid var(--border); color: var(--text-secondary); border-radius: 4px;
    padding: 2px 8px; font-size: 0.7rem; cursor: pointer; opacity: 0; transition: opacity 0.15s;
}
.message-text pre:hover .copy-code-btn { opacity: 1; }
.copy-code-btn:hover { background: var(--border); color: var(--text); }

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

.message-text blockquote {
    border-left: 3px solid var(--accent); padding: 0.25em 0.75em; margin: 0.4em 0;
    color: var(--text-secondary); background: var(--bg-tertiary); border-radius: 0 4px 4px 0;
}

.message-text a { color: var(--accent); text-decoration: none; }
.message-text a:hover { text-decoration: underline; }

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

.message-text table { border-collapse: collapse; width: 100%; margin: 0.5em 0; font-size: 0.95em; }
.message-text th, .message-text td { border: 1px solid var(--border); padding: 0.35em 0.6em; text-align: left; }
.message-text th { background: var(--bg-tertiary); font-weight: 600; }

.message-text img { max-width: 100%; border-radius: 4px; }

.message-text h1, .message-text h2, .message-text h3,
.message-text h4, .message-text h5, .message-text h6 {
    margin: 0.75em 0 0.35em; font-weight: 600;
}
.message-text h1 { font-size: 1.3em; }
.message-text h2 { font-size: 1.15em; }
.message-text h3 { font-size: 1.05em; }

/* ── Thinking Blocks ─────────────────────── */

.thinking-block {
    border: 1px solid rgba(108, 159, 255, 0.15); border-radius: var(--radius);
    margin: 0.5rem 0; background: rgba(108, 159, 255, 0.04);
}
.thinking-block summary {
    padding: 0.4rem 0.75rem; cursor: pointer; font-size: 0.8rem;
    color: var(--text-secondary); user-select: none;
}
.thinking-block summary:hover { color: var(--text); }
.thinking-block[open] summary { border-bottom: 1px solid rgba(108, 159, 255, 0.1); }
.thinking-content {
    padding: 0.5rem 0.75rem; font-size: 0.8rem; color: var(--text-secondary);
    max-height: 300px; overflow-y: auto; line-height: 1.5;
    background: rgba(108, 159, 255, 0.02);
}

.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; color: var(--text-secondary); }
.empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.empty-hint { color: var(--text-secondary); font-size: 0.8rem; text-align: center; padding: 1rem; }
.error-hint { color: var(--danger); font-size: 0.8rem; padding: 0.5rem; }
.loading { color: var(--text-secondary); font-size: 0.8rem; padding: 0.5rem; }

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

.input-area {
    border-top: 1px solid var(--border); padding: 0.5rem 1rem 0.75rem;
    background: var(--bg-secondary); flex-shrink: 0;
}
.input-bar { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.model-selector { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; }
.model-selector label { color: var(--text-secondary); }
.model-selector select {
    background: var(--bg-tertiary); border: 1px solid var(--border); color: var(--text);
    padding: 0.25rem 0.5rem; border-radius: 4px; font-size: 0.8rem; max-width: 300px;
}
.input-row { display: flex; gap: 0.5rem; align-items: flex-end; }
.input-row textarea {
    flex: 1; resize: none; background: var(--bg-tertiary); border: 1px solid var(--border);
    color: var(--text); padding: 0.5rem 0.75rem; border-radius: var(--radius);
    font-family: var(--font); font-size: 0.9rem; max-height: 200px; line-height: 1.5;
}
.input-row textarea:focus { outline: none; border-color: var(--accent); }
.input-actions { display: flex; gap: 0.25rem; align-items: center; }

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

button { font-family: var(--font); cursor: pointer; }
.btn-primary {
    background: var(--accent); color: #fff; border: none; padding: 0.5rem 1rem;
    border-radius: var(--radius); font-weight: 600; font-size: 0.85rem;
    transition: background 0.15s;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-full { width: 100%; }

.btn-small { font-size: 0.8rem; padding: 0.35rem 0.75rem; }
.btn-danger { background: var(--danger); color: #fff; border: none; border-radius: 4px; }

.btn-icon {
    background: none; border: none; color: var(--text-secondary); font-size: 1rem;
    padding: 0.25rem; transition: color 0.15s;
}
.btn-icon:hover { color: var(--text); }

.btn-send {
    background: var(--accent); color: #fff; border: none; padding: 0.5rem 1rem;
    border-radius: var(--radius); font-weight: 600; font-size: 0.85rem;
}
.btn-send:disabled { opacity: 0.5; }
.btn-stop { display: none; background: var(--warning); color: #000; border: none; padding: 0.5rem 0.75rem; border-radius: var(--radius); font-size: 0.85rem; }
.btn-stop.visible { display: block; }
.btn-regen { background: none; border: 1px solid var(--border); color: var(--text-secondary); border-radius: var(--radius); padding: 0.35rem; }

/* ── Connection Status ───────────────────── */

.connection-status {
    display: flex; align-items: center; gap: 0.4rem; font-size: 0.8rem;
    color: var(--text-secondary); cursor: pointer; padding: 0.25rem 0.5rem;
    border-radius: var(--radius); transition: background 0.15s;
}
.connection-status:hover { background: var(--bg-tertiary); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); }
.connection-status.online .status-dot { background: var(--success); }

/* ── Typing Indicator ────────────────────── */

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

/* ── Dropdown ────────────────────────────── */

.dropdown { position: relative; }
.dropdown-menu {
    display: none; position: absolute; top: 100%; right: 0; background: var(--bg-secondary);
    border: 1px solid var(--border); border-radius: var(--radius); padding: 0.25rem;
    z-index: 100; min-width: 140px;
}
.dropdown-menu.show { display: block; }
.dropdown-menu button {
    display: block; width: 100%; text-align: left; background: none; border: none;
    color: var(--text); padding: 0.4rem 0.75rem; font-size: 0.8rem; border-radius: 4px;
}
.dropdown-menu button:hover { background: var(--bg-tertiary); }

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

.splash {
    display: flex; align-items: center; justify-content: center; height: 100vh;
    background: var(--bg);
}
.splash-card {
    background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px;
    padding: 2rem; width: 380px; max-width: 90vw;
}
.splash-brand { text-align: center; margin-bottom: 1.5rem; }
.splash-logo { font-size: 3rem; margin-bottom: 0.5rem; }
.splash-brand h1 { font-size: 1.25rem; }
.splash-brand p { color: var(--text-secondary); font-size: 0.85rem; }
.splash-error { color: var(--danger); font-size: 0.8rem; text-align: center; margin-top: 0.5rem; }

.auth-tabs { display: flex; gap: 0; margin-bottom: 1rem; border-bottom: 1px solid var(--border); }
.auth-tab {
    flex: 1; background: none; border: none; color: var(--text-secondary); padding: 0.5rem;
    cursor: pointer; border-bottom: 2px solid transparent; font-size: 0.9rem;
}
.auth-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.auth-error { color: var(--danger); font-size: 0.8rem; min-height: 1.2em; margin: 0.5rem 0; }
.auth-actions { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1rem; }

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

.form-group { margin-bottom: 0.75rem; }
.form-group label { display: block; font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.25rem; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; background: var(--bg-tertiary); border: 1px solid var(--border);
    color: var(--text); padding: 0.5rem 0.75rem; border-radius: var(--radius);
    font-family: var(--font); font-size: 0.85rem;
}
.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; }
.checkbox-label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; cursor: pointer; margin: 0.5rem 0; }

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

.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.7); display: none;
    align-items: center; justify-content: center; z-index: 1000;
}
.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-secondary); border-radius: 12px; width: 90%; max-width: 560px;
    max-height: 85vh; display: flex; flex-direction: column;
    animation: modalIn 0.2s ease;
}
.modal-wide { max-width: 750px; }
@keyframes modalIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1rem 1.25rem; border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 1rem; }
.modal-close { background: none; border: none; color: var(--text-secondary); font-size: 1.25rem; cursor: pointer; }
.modal-body { flex: 1; overflow-y: auto; padding: 1rem 1.25rem; }
.modal-footer { padding: 0.75rem 1.25rem; 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; }
.settings-section h3 { font-size: 0.9rem; margin-bottom: 0.75rem; color: var(--accent); }

/* ── Providers ───────────────────────────── */

.provider-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.5rem 0; border-bottom: 1px solid var(--border);
}
.provider-info { flex: 1; }
.provider-name { font-weight: 600; font-size: 0.85rem; }
.provider-meta { font-size: 0.75rem; color: var(--text-secondary); margin-left: 0.5rem; }
.provider-actions { display: flex; align-items: center; gap: 0.5rem; }
.badge-global { font-size: 0.7rem; color: var(--text-secondary); background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; }

/* ── Admin ────────────────────────────────── */

.admin-tabs {
    display: flex; border-bottom: 1px solid var(--border); padding: 0 1rem;
    background: var(--bg-tertiary);
}
.admin-tab {
    padding: 0.5rem 0.75rem; background: none; border: none; color: var(--text-secondary);
    cursor: pointer; font-size: 0.8rem; border-bottom: 2px solid transparent;
}
.admin-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.admin-user-row {
    padding: 0.5rem 0; border-bottom: 1px solid var(--border); font-size: 0.85rem;
}
.admin-user-email { font-size: 0.75rem; color: var(--text-secondary); }
.admin-model-row {
    display: flex; align-items: center; gap: 1rem; padding: 0.4rem 0;
    border-bottom: 1px solid var(--border); font-size: 0.8rem;
}

.badge-admin { background: var(--accent); color: #fff; font-size: 0.65rem; padding: 1px 6px; border-radius: 4px; }
.badge-user { background: var(--bg-tertiary); color: var(--text-secondary); font-size: 0.65rem; padding: 1px 6px; border-radius: 4px; }
.badge-inactive { background: var(--danger); color: #fff; font-size: 0.65rem; padding: 1px 6px; border-radius: 4px; }

/* ── 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-secondary); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 0.5rem 1rem; font-size: 0.85rem; display: flex; align-items: center; gap: 0.5rem;
    animation: toastIn 0.3s ease;
}
.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-secondary); cursor: pointer; }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

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

.debug-modal { max-width: 900px; height: 80vh; overflow: hidden; }
.debug-tabs { display: flex; border-bottom: 1px solid var(--border); padding: 0 1rem; background: var(--bg-tertiary); }
.debug-tab {
    padding: 0.5rem 0.75rem; background: none; border: none; color: var(--text-secondary);
    cursor: pointer; font-size: 0.8rem; border-bottom: 2px solid transparent;
}
.debug-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.debug-modal-body { flex: 1; overflow: hidden; padding: 0 !important; }
.debug-tab-content { height: 100%; display: flex; flex-direction: column; }
.debug-toolbar { display: flex; gap: 1rem; padding: 0.4rem 1rem; border-bottom: 1px solid var(--border); font-size: 0.75rem; }
.debug-check { display: flex; align-items: center; gap: 0.3rem; color: var(--text-secondary); cursor: pointer; }
.debug-content { flex: 1; overflow-y: auto; padding: 0.5rem; font-family: var(--mono); font-size: 0.72rem; line-height: 1.5; }
.debug-entry { padding: 1px 0.5rem; border-bottom: 1px solid rgba(128,128,128,0.08); white-space: pre-wrap; word-break: break-all; }
.debug-time { color: var(--text-secondary); opacity: 0.6; font-size: 0.68rem; }
.debug-msg { color: var(--text); }
.debug-empty { color: var(--text-secondary); text-align: center; padding: 2rem; }
.debug-net-entry { border-bottom: 1px solid var(--border); }
.debug-net-entry summary { padding: 0.4rem 0.5rem; cursor: pointer; font-size: 0.75rem; }
.debug-net-method { font-weight: bold; color: var(--accent); }
.debug-net-url { color: var(--text); word-break: break-all; }
.debug-net-detail { padding: 0.5rem 1rem; font-size: 0.72rem; }
.debug-pre { white-space: pre-wrap; word-break: break-all; max-height: 200px; overflow: auto; padding: 0.5rem; background: rgba(0,0,0,0.2); border-radius: 4px; margin: 0.3rem 0; }
.debug-footer { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1rem; border-top: 1px solid var(--border); }

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

@media (max-width: 768px) {
    .sidebar { width: 220px; }
    .header-title { font-size: 0.9rem; }
}
@media (max-width: 640px) {
    .sidebar { display: none; }
}