/* ============================================================
   Faceb.ai design system
   ============================================================ */

:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Light theme (default) */
    --bg: #ffffff;
    --bg-elev: #fafafa;
    --bg-elev-2: #f4f4f5;
    --sidebar-bg: #0a0a0a;
    --sidebar-fg: #e4e4e7;
    --sidebar-muted: #71717a;
    --sidebar-hover: #18181b;
    --sidebar-active: #27272a;
    --fg: #09090b;
    --fg-muted: #52525b;
    --fg-subtle: #71717a;
    --border: #e4e4e7;
    --border-strong: #d4d4d8;
    --accent: #6d28d9;
    --accent-hover: #5b21b6;
    --accent-soft: #ede9fe;
    --user-bubble: #f4f4f5;
    --assistant-bubble: transparent;
    --code-bg: #18181b;
    --code-fg: #fafafa;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 16px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.10);
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 16px;
}

[data-theme="dark"] {
    --bg: #0a0a0a;
    --bg-elev: #18181b;
    --bg-elev-2: #27272a;
    --sidebar-bg: #050505;
    --sidebar-fg: #e4e4e7;
    --sidebar-muted: #71717a;
    --sidebar-hover: #18181b;
    --sidebar-active: #27272a;
    --fg: #fafafa;
    --fg-muted: #a1a1aa;
    --fg-subtle: #71717a;
    --border: #27272a;
    --border-strong: #3f3f46;
    --accent: #8b5cf6;
    --accent-hover: #a78bfa;
    --accent-soft: #2e1065;
    --user-bubble: #1f1f23;
    --assistant-bubble: transparent;
    --code-bg: #000000;
    --code-fg: #fafafa;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

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

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
    transition: background 0.12s, border-color 0.12s, color 0.12s, transform 0.08s;
    text-decoration: none;
    white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.btn-ghost {
    background: transparent;
    color: var(--fg);
    border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-elev); color: var(--fg); }
.btn-dark {
    background: #18181b;
    color: #fff;
}
.btn-dark:hover { background: #27272a; color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-lg { padding: 12px 22px; font-size: 16px; }
.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    border: none;
    color: var(--fg-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-icon:hover { background: var(--bg-elev-2); color: var(--fg); }

/* ============================================================
   Chat shell
   ============================================================ */
.app {
    display: flex;
    /* `100vh` on mobile Safari includes the address bar even when it's
       visible, so the composer sits below the fold on first load. `100dvh`
       is the dynamic viewport height — excludes the bar when shown, adjusts
       as it hides. 100vh is the fallback for older browsers. */
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

.sidebar {
    width: 280px;
    flex-shrink: 0;
    background: var(--sidebar-bg);
    color: var(--sidebar-fg);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease;
}

.sidebar-top {
    padding: 14px 14px 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 16px;
    color: #fff;
    text-decoration: none;
    flex: 1;
}
.sidebar-brand svg.brand-mark,
.sidebar-brand svg[viewBox="0 0 32 32"] {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    flex-shrink: 0;
}

.sidebar-actions {
    padding: 4px 14px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.sidebar-action {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    color: var(--sidebar-fg);
    background: var(--sidebar-hover);
    border: none;
    font-size: 14px;
    cursor: pointer;
    text-align: left;
    text-decoration: none;
    width: 100%;
}
.sidebar-action:hover { background: var(--sidebar-active); color: #fff; }
.sidebar-action.primary {
    background: var(--accent);
    color: #fff;
}
.sidebar-action.primary:hover { background: var(--accent-hover); }

.sidebar-search {
    padding: 6px 14px 10px;
}
.sidebar-search input {
    width: 100%;
    padding: 7px 10px;
    background: var(--sidebar-hover);
    color: var(--sidebar-fg);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 13px;
    outline: none;
}
.sidebar-search input::placeholder { color: var(--sidebar-muted); }
.sidebar-search input:focus { border-color: var(--accent); }

.sidebar-section-title {
    padding: 16px 18px 6px;
    font-size: 11px;
    font-weight: 600;
    color: var(--sidebar-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.sidebar-list {
    flex: 1;
    overflow-y: auto;
    padding: 0 6px 12px;
}
.sidebar-list::-webkit-scrollbar { width: 6px; }
.sidebar-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }

.conv-item {
    display: block;
    padding: 9px 12px;
    margin: 1px 0;
    border-radius: var(--radius-sm);
    color: var(--sidebar-fg);
    text-decoration: none;
    font-size: 13.5px;
    line-height: 1.35;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    position: relative;
}
.conv-item:hover { background: var(--sidebar-hover); color: #fff; }
.conv-item.active { background: var(--sidebar-active); color: #fff; }
.conv-item .conv-meta {
    font-size: 11px;
    color: var(--sidebar-muted);
    margin-top: 2px;
}

.sidebar-upgrade {
    margin: 8px 12px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    text-decoration: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
    color: #fff !important;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.sidebar-upgrade:hover,
.sidebar-upgrade:focus,
.sidebar-upgrade:active {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(139,92,246,0.45);
    color: #fff !important;
    background: linear-gradient(135deg, #7c4ae8, #e5388b);
    text-decoration: none;
}
.sidebar-upgrade *,
.sidebar-upgrade:hover * { color: #fff !important; }
.sidebar-upgrade-icon { font-size: 16px; }
.sidebar-upgrade-text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.sidebar-upgrade-title { font-size: 13.5px; font-weight: 600; }
.sidebar-upgrade-sub { font-size: 11.5px; opacity: 0.92; }

.sidebar-footer {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}
/* Collapsed "Settings & More" menu + minimal credit footer (DuckDuckGo-style). */
.sidebar-more-wrap {
    position: relative;
    border-top: 1px solid rgba(255,255,255,0.06);
    background: rgba(255,255,255,0.02);
}
.sidebar-more-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    background: transparent;
    border: 0;
    color: #e5e7eb;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: background 0.1s ease;
}
.sidebar-more-btn:hover { background: rgba(255,255,255,0.04); }
.sidebar-more-btn svg { opacity: 0.7; transition: transform 0.15s ease; }
.sidebar-more-btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.sidebar-more-btn > span:nth-of-type(1) { flex: 1; }
.sidebar-more-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 999px;
    letter-spacing: 0.01em;
    text-transform: capitalize;
}
.sidebar-more-badge.plan-guest,
.sidebar-more-badge.plan-free { background: rgba(16,185,129,0.15); color: #6ee7b7; }
.sidebar-more-badge.plan-pro,
.sidebar-more-badge.plan-lifetime { background: rgba(139,92,246,0.2); color: #c4b5fd; }
.sidebar-more-menu {
    position: absolute;
    bottom: calc(100% + 4px);
    left: 8px;
    right: 8px;
    background: #1f1f24;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 6px;
    box-shadow: 0 -8px 24px rgba(0,0,0,0.35);
    z-index: 20;
}
.sidebar-more-menu a {
    display: block;
    padding: 8px 12px;
    color: #e5e7eb;
    font-size: 13px;
    text-decoration: none;
    border-radius: 6px;
}
.sidebar-more-menu a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar-more-sep { height: 1px; background: rgba(255,255,255,0.08); margin: 6px 4px; }

.sidebar-credit {
    display: block;
    padding: 8px 14px 12px;
    font-size: 12px;
    color: rgba(229,231,235,0.65);
    text-align: center;
    letter-spacing: 0.02em;
}
.sidebar-credit a {
    color: #e5e7eb;
    font-weight: 600;
    text-decoration: none;
}
.sidebar-credit a:hover { color: #fff; text-decoration: underline; text-underline-offset: 2px; }
.sidebar-credit a {
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding-bottom: 1px;
}
.sidebar-credit a:hover { border-bottom-color: #fff; }

/* Shared transient toast (share links, copy confirmations) */
.toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translate(-50%, 20px);
    display: none;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-elev);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.18);
    font-size: 13.5px;
    max-width: calc(100vw - 40px);
    z-index: 50;
    opacity: 0;
    transition: opacity 0.18s ease, transform 0.18s ease;
}
.toast.open { display: inline-flex; opacity: 1; transform: translate(-50%, 0); }
.toast-msg { line-height: 1.35; }
.toast-link {
    color: var(--accent);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 12.5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 240px;
}
.toast-copy {
    background: var(--accent);
    color: #fff;
    border: 0;
    border-radius: 6px;
    padding: 5px 10px;
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
}
.toast-copy:hover { background: var(--accent-hover); }
.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}
.user-info {
    flex: 1;
    min-width: 0;
}
.user-info .email {
    font-size: 12.5px;
    color: #fff;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.user-info .plan {
    font-size: 10.5px;
    color: var(--sidebar-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.user-info .plan.free { color: var(--sidebar-muted); }
.user-info .plan.pro { color: #fbbf24; }
.user-info .plan.ultra { color: #ec4899; }

.theme-toggle {
    background: transparent;
    border: none;
    color: var(--sidebar-muted);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.theme-toggle:hover { color: #fff; background: var(--sidebar-hover); }

/* ============================================================
   Chat main panel
   ============================================================ */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    min-width: 0;
    position: relative;
}

.guest-cta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 10px 18px;
    background: color-mix(in srgb, var(--accent) 10%, var(--bg));
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--fg);
}
.guest-cta-msg { flex: 1; min-width: 220px; }
.guest-cta-msg b { color: var(--accent); }
.guest-cta-btn {
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 13px;
    white-space: nowrap;
}
.guest-cta-btn:hover { background: var(--accent-hover); }
.guest-cta-link {
    color: var(--fg-muted);
    text-decoration: none;
    font-size: 13px;
}
.guest-cta-link:hover { color: var(--fg); }
.guest-cta-low {
    background: color-mix(in srgb, #f59e0b 15%, var(--bg));
}
.guest-cta-empty {
    background: color-mix(in srgb, #ef4444 18%, var(--bg));
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    flex-shrink: 0;
    z-index: 5;
}
.toolbar-burger {
    display: none;
    background: transparent;
    border: none;
    color: var(--fg);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
}
.toolbar-burger:hover { background: var(--bg-elev); }
.toolbar-brand {
    display: none;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.01em;
    color: var(--fg);
    text-decoration: none;
    flex-shrink: 0;
}
.toolbar-brand svg.brand-mark,
.toolbar-brand svg[viewBox="0 0 32 32"] {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    flex-shrink: 0;
}
.toolbar-title {
    flex: 1;
    font-weight: 600;
    font-size: 15px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.toolbar-title .bot-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--accent-soft);
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    margin-left: 8px;
}
.model-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    color: var(--fg);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    cursor: pointer;
    position: relative;
    user-select: none;
}
.model-pill:hover { background: var(--bg-elev-2); }
.model-pill .caret { color: var(--fg-muted); font-size: 10px; }
.model-pill.locked::after {
    content: '🔒';
    margin-left: 2px;
    font-size: 11px;
}

.model-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    width: 380px;
    max-height: 70vh;
    overflow-y: auto;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 50;
    padding: 6px;
    display: none;
}
.model-menu.open { display: block; }
.model-menu input.search {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elev);
    color: var(--fg);
    font-size: 13px;
    margin-bottom: 6px;
    outline: none;
}
.model-menu .group-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--fg-subtle);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 10px 4px;
}
.model-option {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}
.model-option:hover { background: var(--bg-elev); }
.model-option.selected { background: var(--accent-soft); }
.model-option.locked { opacity: 0.55; }
.model-option.locked .name { color: var(--fg-muted); }
.model-option.locked:hover { background: color-mix(in srgb, #f59e0b 10%, var(--bg-elev)); opacity: 0.85; }
.model-option .name { font-weight: 500; font-size: 14px; color: var(--fg); }
.model-option .slug { font-size: 11px; color: var(--fg-subtle); font-family: var(--font-mono); }
.model-option .badge {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 999px;
    background: var(--bg-elev-2);
    color: var(--fg-muted);
    margin-left: 6px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.model-option .badge.free { background: #d1fae5; color: #065f46; }
.model-option .badge.pro { background: #fef3c7; color: #92400e; }
.model-option .badge.ultra { background: #fce7f3; color: #9d174d; }
[data-theme="dark"] .model-option .badge.free { background: rgba(16,185,129,0.15); color: #6ee7b7; }
[data-theme="dark"] .model-option .badge.pro { background: rgba(251,191,36,0.15); color: #fcd34d; }
[data-theme="dark"] .model-option .badge.ultra { background: rgba(236,72,153,0.15); color: #f9a8d4; }

/* Quota chip */
.quota-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    color: var(--fg-muted);
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
}
.quota-chip.warn { color: #b45309; border-color: #fcd34d; background: #fef3c7; }
.quota-chip.bad { color: #b91c1c; border-color: #fecaca; background: #fee2e2; }
[data-theme="dark"] .quota-chip.warn { background: rgba(251,191,36,0.1); border-color: rgba(251,191,36,0.3); color: #fcd34d; }
[data-theme="dark"] .quota-chip.bad { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); color: #fca5a5; }

/* ============================================================
   Messages
   ============================================================ */
.messages {
    flex: 1;
    overflow-y: auto;
    padding: 28px 24px 32px;
    scroll-behavior: smooth;
}
.messages-inner {
    max-width: 760px;
    margin: 0 auto;
}
.message {
    display: flex;
    gap: 14px;
    margin: 0 0 20px;
}
.message-avatar {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    background: var(--bg-elev);
    color: var(--fg-muted);
    margin-top: 4px;
}
.message.user .message-avatar { background: linear-gradient(135deg, #8b5cf6, #ec4899); color: #fff; }
.message.assistant .message-avatar {
    background: linear-gradient(135deg, #10b981, #06b6d4);
    color: #fff;
}
.message-body {
    flex: 1;
    min-width: 0;
}
.message-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}
.message-name { font-weight: 600; font-size: 14px; }
.message-model { font-size: 11px; color: var(--fg-subtle); font-family: var(--font-mono); }
.message-content {
    font-size: 15px;
    color: var(--fg);
    line-height: 1.65;
    word-wrap: break-word;
    overflow-wrap: anywhere;
}
.message-content > *:first-child { margin-top: 0; }
.message-content > *:last-child { margin-bottom: 0; }
.message-content p { margin: 0.6em 0; }
.message-content h1, .message-content h2, .message-content h3 { margin: 1.2em 0 0.5em; line-height: 1.3; }
.message-content h1 { font-size: 1.5em; }
.message-content h2 { font-size: 1.3em; }
.message-content h3 { font-size: 1.1em; }
.message-content ul, .message-content ol { margin: 0.6em 0; padding-left: 1.4em; }
.message-content li { margin: 0.2em 0; }
.message-content blockquote {
    border-left: 3px solid var(--border-strong);
    padding-left: 14px;
    margin: 0.8em 0;
    color: var(--fg-muted);
}
.message-content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--bg-elev);
    padding: 1px 5px;
    border-radius: 4px;
}
.message-content pre {
    margin: 0.8em 0;
    background: var(--code-bg);
    color: var(--code-fg);
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
}
.message-content pre .code-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: rgba(255,255,255,0.04);
    color: #a1a1aa;
    font-size: 11px;
    font-family: var(--font-mono);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.message-content pre .code-copy {
    background: transparent;
    border: none;
    color: inherit;
    font-size: 11px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
}
.message-content pre .code-copy:hover { background: rgba(255,255,255,0.08); color: #fff; }
.message-content pre code {
    display: block;
    padding: 14px 16px;
    background: transparent;
    color: inherit;
    font-size: 13px;
    line-height: 1.5;
    overflow-x: auto;
    border-radius: 0;
}
.message-content table {
    border-collapse: collapse;
    margin: 0.8em 0;
    font-size: 14px;
}
.message-content th, .message-content td {
    border: 1px solid var(--border);
    padding: 6px 12px;
    text-align: left;
}
.message-content th { background: var(--bg-elev); font-weight: 600; }
.message-content img { max-width: 100%; border-radius: var(--radius-sm); margin: 0.4em 0; }

.message-actions {
    display: flex;
    gap: 4px;
    margin-top: 8px;
    opacity: 0;
    transition: opacity 0.15s;
}
.message:hover .message-actions { opacity: 1; }
.message-actions .btn-icon {
    width: 28px;
    height: 28px;
    font-size: 13px;
}

.attachment-preview {
    display: inline-block;
    margin-right: 8px;
    margin-bottom: 8px;
}
.attachment-preview img {
    max-width: 220px;
    max-height: 220px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

/* Typing dots */
.typing {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 0;
}
.typing span {
    width: 6px;
    height: 6px;
    background: var(--fg-muted);
    border-radius: 50%;
    animation: typing 1.2s infinite ease-in-out;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing {
    0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
    30% { opacity: 1; transform: translateY(-3px); }
}

/* ============================================================
   Empty state / hero in chat
   ============================================================ */
.empty {
    max-width: 720px;
    margin: 60px auto 0;
    text-align: center;
    padding: 0 16px;
}
.empty .hero-mark {
    display: none;   /* removed from template — rule kept for any cached HTML */
    width: 72px;
    height: 72px;
    margin: 0 auto 18px;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.35);
    border-radius: 18px;
    overflow: hidden;
}
.empty .hero-mark svg.brand-mark,
.empty .hero-mark svg[viewBox="0 0 32 32"] {
    width: 100%;
    height: 100%;
    border-radius: 18px;
    display: block;
}
.empty h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 8px;
    letter-spacing: -0.02em;
}
.empty p {
    color: var(--fg-muted);
    font-size: 15px;
    margin: 0 0 28px;
}
.suggest-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    text-align: left;
}
.suggest-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    cursor: pointer;
    background: var(--bg);
    color: var(--fg);
    transition: border-color 0.15s, background 0.15s;
}
.suggest-card:hover { border-color: var(--accent); background: var(--bg-elev); }
.suggest-card .label { font-size: 13px; color: var(--fg-subtle); margin-bottom: 4px; }
.suggest-card .text { font-size: 14px; color: var(--fg); }

/* ============================================================
   Composer
   ============================================================ */
.composer {
    flex-shrink: 0;
    padding: 12px 24px 18px;
    background: var(--bg);
    border-top: 1px solid var(--border);
}
.composer-inner {
    max-width: 760px;
    margin: 0 auto;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 8px 8px 8px 14px;
    background: var(--bg);
    transition: border-color 0.15s, box-shadow 0.15s;
    box-shadow: var(--shadow-sm);
}
.composer-inner:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(109, 40, 217, 0.12);
}
.composer-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}
.composer-attachments:empty { display: none; }
.composer-attachment {
    position: relative;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-elev);
    border: 1px solid var(--border);
}
.composer-attachment img { width: 100%; height: 100%; object-fit: cover; }
.composer-attachment .x {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: rgba(0,0,0,0.7);
    color: #fff;
    border: none;
    font-size: 11px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.composer-row {
    display: flex;
    align-items: flex-end;
    gap: 6px;
}
.composer textarea {
    flex: 1;
    border: none;
    outline: none;
    resize: none;
    background: transparent;
    color: var(--fg);
    font-size: 15px;
    line-height: 1.5;
    padding: 8px 4px;
    max-height: 240px;
    overflow-y: auto;
    font-family: var(--font-sans);
}
.composer textarea::placeholder { color: var(--fg-subtle); }
.composer-buttons {
    display: flex;
    align-items: center;
    gap: 4px;
}
.composer-buttons .btn-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
}
.send-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: none;
    background: var(--accent);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.12s, transform 0.08s;
}
.send-btn:hover:not(:disabled) { background: var(--accent-hover); }
.send-btn:disabled { background: var(--bg-elev-2); color: var(--fg-subtle); cursor: not-allowed; }
.send-btn.stop { background: #18181b; }
.send-btn.stop:hover { background: #27272a; }
.composer-hint {
    text-align: center;
    margin-top: 8px;
    font-size: 11px;
    color: var(--fg-subtle);
}

/* ============================================================
   Modals
   ============================================================ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
}
.modal-backdrop.open { display: flex; }
.modal {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 460px;
    padding: 28px;
    text-align: center;
}
.modal h3 { margin: 0 0 8px; font-size: 22px; font-weight: 700; }
.modal p { margin: 0 0 20px; color: var(--fg-muted); }
.modal .actions { display: flex; gap: 8px; justify-content: center; }

/* ============================================================
   Bots gallery
   ============================================================ */
.gallery-wrap {
    flex: 1;
    overflow-y: auto;
    padding: 28px 28px 60px;
}
.gallery-head { max-width: 1100px; margin: 0 auto 24px; }
.gallery-head h1 { font-size: 28px; font-weight: 700; margin: 0 0 6px; letter-spacing: -0.02em; }
.gallery-head p { color: var(--fg-muted); margin: 0; }
.gallery {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
}
.bot-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    text-decoration: none;
    color: var(--fg);
    transition: border-color 0.15s, transform 0.12s, box-shadow 0.15s;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.bot-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    color: var(--fg);
}
.bot-card .emoji { font-size: 28px; }
.bot-card .name { font-weight: 600; font-size: 15px; }
.bot-card .tag { color: var(--fg-muted); font-size: 13px; line-height: 1.45; }

/* ============================================================
   Sharing public view
   ============================================================ */
.share-page {
    max-width: 760px;
    margin: 40px auto;
    padding: 0 20px;
}
.share-banner {
    background: var(--accent-soft);
    color: var(--accent);
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 13px;
    margin-bottom: 20px;
    text-align: center;
}

/* ============================================================
   Mobile
   ============================================================ */
@media (max-width: 820px) {
    .sidebar {
        position: fixed;
        top: 0; bottom: 0; left: 0;
        z-index: 80;
        transform: translateX(-100%);
        box-shadow: 0 0 40px rgba(0,0,0,0.3);
    }
    .sidebar.open { transform: translateX(0); }

    /* Chat empty-state on mobile: greeting + optional tagline. Suggestion
       cards hidden so the composer lands above the fold on a phone. */
    .empty h2 { font-size: 24px; margin: 0 0 6px; }
    .empty p { margin: 0 0 18px; font-size: 14px; }
    .empty .suggest-grid { display: none; }
    /* Show the Faceb.ai wordmark in the chat toolbar on mobile (the
       sidebar brand is hidden behind the scrim on small screens). */
    .toolbar-brand { display: inline-flex; }
    .messages { padding: 14px 14px 16px; }
    .sidebar-scrim {
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.4);
        z-index: 70;
        display: none;
    }
    .sidebar-scrim.open { display: block; }
    .toolbar-burger { display: inline-flex; }
    .messages { padding: 18px 14px 24px; }
    .composer { padding: 10px 12px 14px; }
    .empty h2 { font-size: 22px; }
    .suggest-grid { grid-template-columns: 1fr; }
    .model-menu { width: calc(100vw - 40px); right: -8px; }
}

/* ============================================================
   Marketing / landing
   ============================================================ */
.marketing { min-height: 100vh; display: flex; flex-direction: column; }
.nav {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(255,255,255,0.85);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}
[data-theme="dark"] .nav { background: rgba(10,10,10,0.85); }
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 14px 22px;
}
.nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 18px;
    color: var(--fg);
    text-decoration: none;
}
.nav-brand svg.brand-mark,
.nav-brand svg[viewBox="0 0 32 32"] {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    flex-shrink: 0;
}
.nav-links { display: flex; gap: 4px; margin-left: 12px; flex: 1; }
.nav-links a {
    color: var(--fg-muted);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    text-decoration: none;
}
.nav-links a:hover { color: var(--fg); background: var(--bg-elev); }
.nav-links a.nav-chat-link {
    color: var(--accent);
    font-weight: 600;
}
.nav-links a.nav-chat-link:hover {
    color: #fff;
    background: var(--accent);
}
.nav-cta { display: flex; align-items: center; gap: 8px; }

/* Mobile nav: burger + slide-in drawer (hidden on desktop) */
.nav-burger {
    display: none;
    background: transparent;
    border: 0;
    color: var(--fg);
    padding: 6px;
    margin-left: auto;
    cursor: pointer;
    border-radius: 6px;
}
.nav-burger:hover { background: var(--bg-elev); }
.nav-mobile { display: none; }
.nav-mobile[hidden] { display: none !important; }
.nav-mobile-scrim {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(2px);
    animation: navFade 0.15s ease;
}
.nav-mobile-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(85vw, 340px);
    background: var(--bg);
    box-shadow: 0 0 40px rgba(0,0,0,0.2);
    padding: 64px 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
    animation: navSlide 0.2s ease;
}
.nav-mobile-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: transparent;
    border: 0;
    color: var(--fg);
    padding: 8px;
    cursor: pointer;
    border-radius: 6px;
}
.nav-mobile-close:hover { background: var(--bg-elev); }
.nav-mobile-panel a {
    display: block;
    padding: 12px 14px;
    color: var(--fg);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    border-radius: 8px;
}
.nav-mobile-panel a:hover { background: var(--bg-elev); }
.nav-mobile-primary {
    background: var(--accent) !important;
    color: #fff !important;
    text-align: center;
    margin-bottom: 12px;
    font-weight: 600 !important;
}
.nav-mobile-pro {
    background: linear-gradient(135deg, #8b5cf6, #ec4899) !important;
    color: #fff !important;
    text-align: center;
    margin-top: 12px;
    font-weight: 600 !important;
}
@keyframes navFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes navSlide { from { transform: translateX(100%); } to { transform: translateX(0); } }
.nav.nav-open { overflow: visible; }
.nav-mobile.is-open { display: block; }

.hero {
    padding: 80px 22px 60px;
    text-align: center;
    background: radial-gradient(circle at 50% 0%, rgba(139,92,246,0.18), transparent 60%),
                radial-gradient(circle at 80% 30%, rgba(236,72,153,0.12), transparent 50%);
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent-soft);
    color: var(--accent);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 600;
    margin-bottom: 18px;
}
.hero h1 {
    font-size: clamp(38px, 6vw, 64px);
    font-weight: 800;
    margin: 0 0 16px;
    letter-spacing: -0.03em;
    line-height: 1.05;
}
.hero h1 .accent {
    background: linear-gradient(120deg, #8b5cf6, #ec4899);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero p {
    font-size: clamp(16px, 2vw, 19px);
    color: var(--fg-muted);
    max-width: 640px;
    margin: 0 auto 28px;
}
.hero .cta { display: inline-flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.hero .preview {
    margin: 50px auto 0;
    max-width: 1080px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--bg-elev);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    position: relative;
}
.hero .preview-mock {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: 220px 1fr;
}
.hero .preview-mock .mock-side {
    background: var(--sidebar-bg);
    padding: 14px 10px;
}
.hero .preview-mock .mock-side .row {
    height: 22px;
    background: rgba(255,255,255,0.06);
    border-radius: 4px;
    margin-bottom: 6px;
}
.hero .preview-mock .mock-side .row:first-child { background: var(--accent); }
.hero .preview-mock .mock-main { padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.hero .preview-mock .mock-main .bubble {
    max-width: 60%;
    height: 36px;
    background: var(--bg-elev-2);
    border-radius: 12px;
}
.hero .preview-mock .mock-main .bubble.user {
    align-self: flex-end;
    background: var(--accent-soft);
}
.hero .preview-mock .mock-main .bubble.long { max-width: 80%; height: 70px; }

.section { padding: 80px 22px; }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin: 0 0 12px;
    text-align: center;
    letter-spacing: -0.02em;
}
.section .lede {
    color: var(--fg-muted);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 50px;
    font-size: 16px;
}

.model-wall {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}
.model-tile {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    background: var(--bg);
    text-align: left;
}
.model-tile .vendor { font-size: 11px; color: var(--fg-subtle); text-transform: uppercase; letter-spacing: 0.06em; }
.model-tile .name { font-weight: 600; margin-top: 4px; font-size: 15px; }
.model-tile .meta { font-size: 12px; color: var(--fg-muted); margin-top: 4px; }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.feature {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    background: var(--bg);
}
.feature .ic {
    width: 40px; height: 40px;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--accent-soft);
    color: var(--accent);
    border-radius: 10px;
    font-size: 20px;
    margin-bottom: 14px;
}
.feature h3 { margin: 0 0 6px; font-size: 17px; font-weight: 600; }
.feature p { margin: 0; color: var(--fg-muted); font-size: 14px; line-height: 1.55; }

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
    max-width: 980px;
    margin: 0 auto;
}
.price-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
a.price-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(139, 92, 246, 0.22);
    cursor: pointer;
}
a.price-card:hover .amt { color: var(--accent); }
.price-card.featured {
    border-color: var(--accent);
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.18);
    position: relative;
}
a.price-card.featured:hover {
    box-shadow: 0 16px 48px rgba(139, 92, 246, 0.35);
}
.price-card.featured::before {
    content: 'Most popular';
    position: absolute;
    top: -12px; left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #fff;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.price-card .tier { font-size: 13px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }
.price-card .price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin: 8px 0 4px;
    transition: color 0.12s ease;
}
.price-card .price .amt { font-size: 42px; font-weight: 800; letter-spacing: -0.03em; transition: color 0.12s ease; }
.price-card .price .per { color: var(--fg-muted); font-size: 14px; }
.price-card .desc { color: var(--fg-muted); font-size: 14px; margin-bottom: 18px; }
.price-card ul { list-style: none; padding: 0; margin: 0 0 22px; }
.price-card ul li {
    padding: 6px 0 6px 24px;
    font-size: 14px;
    color: var(--fg);
    position: relative;
    line-height: 1.45;
}
.price-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}
.price-card .btn { width: 100%; }

.faq {
    max-width: 760px;
    margin: 0 auto;
}
.faq details {
    border-bottom: 1px solid var(--border);
    padding: 18px 0;
}
.faq summary {
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 22px; color: var(--fg-muted); transition: transform 0.15s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 12px 0 0; color: var(--fg-muted); font-size: 14.5px; line-height: 1.65; }

.footer {
    border-top: 1px solid var(--border);
    padding: 30px 22px;
    color: var(--fg-muted);
    font-size: 13px;
    text-align: center;
}
.footer a { color: var(--fg-muted); margin: 0 8px; text-decoration: none; }
.footer a:hover { color: var(--fg); }

/* ============================================================
   Hero preview screenshot — realistic chat mockup
   ============================================================ */
.hero { padding: 60px 22px 50px; }
.hero h1 { font-size: clamp(34px, 5.2vw, 56px); }
.hero .preview { margin: 40px auto 0; aspect-ratio: auto; height: auto; min-height: 0; }

.screenshot {
    display: grid;
    grid-template-columns: 200px 1fr;
    background: var(--bg);
    color: var(--fg);
    font-size: 13px;
    line-height: 1.5;
    text-align: left;
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.ss-side {
    background: #0a0a0a;
    color: #e4e4e7;
    padding: 12px 10px;
    font-size: 12px;
}
.ss-brand {
    display: flex;
    align-items: center;
    gap: 7px;
    font-weight: 700;
    font-size: 13px;
    color: #fff;
    margin-bottom: 12px;
    padding: 4px 6px;
}
.ss-dot { width: 16px; height: 16px; border-radius: 4px; background: linear-gradient(135deg,#8b5cf6,#ec4899); }
.ss-newchat {
    background: #6d28d9;
    color: #fff;
    padding: 8px 10px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 12px;
    margin-bottom: 14px;
}
.ss-section {
    color: #71717a;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.06em;
    padding: 8px 6px 4px;
}
.ss-conv {
    padding: 7px 9px;
    border-radius: 5px;
    color: #d4d4d8;
    margin: 1px 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
}
.ss-conv.active { background: #27272a; color: #fff; }

.ss-main {
    display: flex;
    flex-direction: column;
    background: var(--bg);
    min-height: 0;
}
.ss-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.ss-title { flex: 1; font-weight: 600; font-size: 13px; }
.ss-quota {
    background: var(--bg-elev);
    color: var(--fg-muted);
    border: 1px solid var(--border);
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 10.5px;
    font-weight: 500;
}
.ss-pill {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    color: var(--fg);
    font-weight: 500;
}

.ss-msgs { padding: 16px 18px; display: flex; flex-direction: column; gap: 14px; }
.ss-msg { display: flex; gap: 10px; }
.ss-avatar {
    width: 26px; height: 26px;
    border-radius: 50%;
    flex-shrink: 0;
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    margin-top: 2px;
}
.ss-avatar.user-av { background: linear-gradient(135deg,#8b5cf6,#ec4899); }
.ss-avatar.ai-av { background: linear-gradient(135deg,#10b981,#06b6d4); }
.ss-bubble { flex: 1; min-width: 0; }
.ss-name {
    font-weight: 600;
    font-size: 12.5px;
    margin-bottom: 3px;
    color: var(--fg);
}
.ss-name .ss-model {
    font-weight: 400;
    font-size: 10.5px;
    color: var(--fg-subtle);
    margin-left: 6px;
    font-family: var(--font-mono);
}
.ss-text { font-size: 12.5px; color: var(--fg); margin: 4px 0; }
.ss-inline {
    background: var(--bg-elev);
    padding: 1px 5px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
}
.ss-code {
    background: #0a0a0a;
    color: #f4f4f5;
    border-radius: 8px;
    overflow: hidden;
    margin: 6px 0;
}
.ss-code-head {
    display: flex; justify-content: space-between;
    padding: 5px 12px;
    background: rgba(255,255,255,0.04);
    font-size: 10.5px;
    color: #a1a1aa;
    font-family: var(--font-mono);
}
.ss-code .ss-copy { color: #a1a1aa; cursor: default; }
.ss-code pre {
    margin: 0;
    padding: 10px 12px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    line-height: 1.55;
    color: #f4f4f5;
    overflow-x: auto;
    white-space: pre;
}

.ss-composer {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 14px 14px;
    padding: 8px 8px 8px 14px;
    border: 1px solid var(--border-strong);
    border-radius: 14px;
}
.ss-input { flex: 1; color: var(--fg-subtle); font-size: 12.5px; }
.ss-send {
    width: 28px; height: 28px;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 14px;
    font-weight: 700;
}

@media (max-width: 720px) {
    .screenshot { grid-template-columns: 0 1fr; }
    .ss-side { display: none; }
    .ss-msgs { padding: 12px; }
}

/* ============================================================
   Marketing site — mobile
   ============================================================ */
@media (max-width: 820px) {
    /* Header: hide desktop links + CTA, show burger */
    .nav-inner { padding: 12px 16px; gap: 10px; }
    .nav-links, .nav-cta { display: none; }
    .nav-burger { display: inline-flex; }
    .nav-brand { font-size: 16px; }

    /* Hero typography scales down */
    .hero { padding: 48px 16px 32px; }
    .hero h1, .model-title { font-size: 34px; line-height: 1.1; }
    .model-hero { padding: 32px 16px 16px; }
    .model-tagline { font-size: 16px; }
    .hero p, .lede { font-size: 16px; }
    .hero .cta, .model-cta, .cta { flex-direction: column; align-items: stretch; }
    .hero .cta .btn, .model-cta .btn, .cta .btn { width: 100%; }

    /* Section padding tighter */
    .section { padding: 40px 16px; }
    .section-tight { padding: 32px 16px; }
    .section-inner { padding: 0; }
    h2 { font-size: 24px; }
    h3 { font-size: 17px; }

    /* Grids stack single-column by default */
    .feature-grid,
    .pricing-grid,
    .topup-grid,
    .margin-grid,
    .model-stats,
    .model-strengths-grid,
    .onboarding-grid,
    .acc-grid-3,
    .acc-quick {
        grid-template-columns: 1fr !important;
    }
    .model-stats { padding: 18px; }
    .model-pricing-card { flex-direction: column; align-items: flex-start; padding: 20px; }
    .model-pricing-right { width: 100%; }

    /* Pricing tables scroll horizontally rather than overflow */
    .compare-table { display: block; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }

    /* Forms + cards fit phone width */
    .auth-card, .join-card { padding: 20px; margin: 18px 12px 0; max-width: 100%; }

    /* Account page header stacks */
    .account-header { flex-direction: column; align-items: flex-start; }
    .account-tabs { gap: 0; }
    .account-tabs .tab-btn { padding: 10px 12px; font-size: 13px; }
    .acc-table { font-size: 13px; }
    .acc-table thead th, .acc-table td { padding: 10px 12px; }

    /* Referral share row wraps */
    .referral-row { flex-direction: column; }
    .referral-row .btn { width: 100%; }
    .referral-stats { gap: 12px; }

    /* API code blocks contain */
    .api-snippet, pre { font-size: 12px; overflow-x: auto; }

    /* Footer from _marketing_base */
    .footer { padding: 30px 16px; }
    .footer-links { flex-wrap: wrap; justify-content: center; gap: 12px 16px; }
}

/* ============================================================
   Pricing extras: billing toggle, compare table, top-ups
   ============================================================ */
.billing-toggle {
    display: inline-flex;
    margin: 0 auto 30px;
    padding: 4px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 999px;
    text-align: center;
    width: max-content;
}
.section .billing-toggle { display: flex; }
.bt-opt {
    background: transparent;
    border: none;
    padding: 8px 18px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--fg-muted);
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.bt-opt:hover { color: var(--fg); }
.bt-opt.active { background: var(--bg); color: var(--fg); box-shadow: var(--shadow-sm); }
.bt-save {
    background: var(--accent);
    color: #fff;
    font-size: 10.5px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Sub-user banner in the chat shell */
.team-banner {
    padding: 8px 18px;
    font-size: 13px;
    color: var(--fg-muted);
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    text-align: center;
}
.team-banner b { color: var(--fg); }

/* Pricing page team-seats picker (discreet, centered under the billing toggle) */
.pricing-seats {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px 14px;
    margin: 0 auto 28px;
    padding: 10px 16px;
    border: 1px dashed var(--border);
    border-radius: 999px;
    background: var(--bg);
    width: max-content;
    max-width: 100%;
}
.pricing-seats-label { font-size: 13.5px; color: var(--fg-muted); font-weight: 500; }
.pricing-seats-controls {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 2px;
    background: var(--bg-elev);
}
.pricing-seats-unit { font-size: 12.5px; color: var(--fg-muted); padding: 0 6px; }
.pricing-seats-hint { width: 100%; text-align: center; font-size: 12.5px; color: var(--fg-muted); margin: 0; }
.pricing-seats-badge { font-size: 10.5px; }

.badge-save {
    display: inline-flex;
    align-items: center;
    background: var(--accent);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Per-card bundle line ("× 3 seats · $203.80 billed annually — save $35.96") */
.price-bundle {
    font-size: 12.5px;
    color: var(--fg-muted);
    margin: 6px 0 0;
}

/* /join/ savings callout under the total */
.join-savings {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--fg-muted);
}
.join-savings-text { font-weight: 500; }

.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    font-size: 14px;
}
.compare-table thead { background: var(--bg-elev-2); }
.compare-table th, .compare-table td {
    padding: 12px 18px;
    border-top: 1px solid var(--border);
}
.compare-table th { font-weight: 600; font-size: 13px; }
.compare-table th.hl { color: var(--accent); }
.compare-table tbody td { text-align: center; }
.compare-table tbody td:first-child { text-align: left; color: var(--fg); }

.topup-card {
    display: block;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    background: var(--bg);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.topup-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(139,92,246,0.15);
    cursor: pointer;
}
.topup-card.highlight {
    border-color: var(--accent);
    background: var(--bg);
}
.topup-credits {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.topup-name { color: var(--fg-muted); font-size: 12.5px; margin-bottom: 12px; }
.topup-price { font-size: 16px; font-weight: 600; margin-bottom: 14px; }
.topup-card .btn { width: 100%; }

/* ============================================================
   /api/ marketing + /account/api/ management
   ============================================================ */
.api-tabs {
    display: inline-flex;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px;
    margin: 0 0 14px;
}
.api-tab {
    background: transparent;
    border: none;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--fg-muted);
    border-radius: 999px;
}
.api-tab.active { background: var(--bg); color: var(--fg); box-shadow: var(--shadow-sm); }

.api-snippet { display: none; }
.api-snippet.active { display: block; }
.api-snippet {
    background: #0a0a0a;
    color: #f4f4f5;
    border-radius: var(--radius);
    padding: 18px 20px;
    overflow-x: auto;
    margin: 0;
    font-size: 13px;
    line-height: 1.55;
    border: 1px solid #1f1f23;
}
.api-snippet code { background: transparent; color: inherit; padding: 0; font-family: var(--font-mono); }

.api-endpoints {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.api-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border-top: 1px solid var(--border);
    background: var(--bg);
}
.api-row:first-child { border-top: none; }
.api-method {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    letter-spacing: 0.04em;
}
.api-method.post { background: #ede9fe; color: #6d28d9; }
.api-method.get  { background: #d1fae5; color: #065f46; }
[data-theme="dark"] .api-method.post { background: rgba(139,92,246,0.15); color: #c4b5fd; }
[data-theme="dark"] .api-method.get  { background: rgba(16,185,129,0.15); color: #6ee7b7; }
.api-path { font-family: var(--font-mono); font-size: 14px; }
.api-desc { color: var(--fg-muted); font-size: 13.5px; flex: 1; }

/* /account/api/ */
.callout {
    border-radius: var(--radius);
    padding: 16px 18px;
    margin-bottom: 22px;
    border: 1px solid var(--border);
}
.callout.success {
    background: #ecfdf5;
    border-color: #6ee7b7;
    color: #065f46;
}
[data-theme="dark"] .callout.success {
    background: rgba(16,185,129,0.08);
    border-color: rgba(16,185,129,0.3);
    color: #a7f3d0;
}
.key-show {
    background: #0a0a0a;
    color: #fafafa;
    padding: 12px 14px;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 8px 0 0;
    overflow-x: auto;
}
.key-show code { background: transparent; color: inherit; padding: 0; }

.key-list { display: flex; flex-direction: column; gap: 8px; }
.key-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.key-name { font-weight: 600; }
.key-prefix { font-size: 12px; color: var(--fg-muted); margin-top: 2px; }
.key-prefix code { background: var(--bg-elev); padding: 1px 6px; border-radius: 4px; font-family: var(--font-mono); font-size: 11px; }

/* ============================================================
   Pricing transparency cards
   ============================================================ */
.margin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 32px;
}
.margin-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: left;
}
.margin-num {
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(120deg, #8b5cf6, #ec4899);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
}
.margin-label {
    font-size: 13px;
    color: var(--fg-muted);
    margin-top: 6px;
    margin-bottom: 12px;
}
.margin-note {
    color: var(--fg);
    font-size: 14px;
    line-height: 1.55;
}
.margin-note em { color: var(--fg-muted); font-style: normal; font-weight: 600; }

/* ============================================================
   Standardized utilities — use these instead of inline styles
   ============================================================ */
:root {
    --space-1: 4px;  --space-2: 8px;  --space-3: 12px;
    --space-4: 16px; --space-5: 22px; --space-6: 28px;
    --space-7: 40px; --space-8: 60px; --space-9: 80px;
}

/* Layout */
.section.section-tight { padding: var(--space-8) var(--space-5); }
.section.section-bg    { background: var(--bg-elev); }
.section-inner.narrow  { max-width: 760px; }
.section-inner.wide    { max-width: 1100px; }
.section-inner.center  { text-align: center; }

/* Spacing */
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }

/* Type */
.text-muted   { color: var(--fg-muted); }
.text-subtle  { color: var(--fg-subtle); }
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-sm      { font-size: 13px; }
.text-md      { font-size: 14px; }
.text-lg      { font-size: 16px; }
.font-mono    { font-family: var(--font-mono); }
.font-bold    { font-weight: 600; }
code.inline   { background: var(--bg-elev); padding: 1px 6px; border-radius: 4px; font-family: var(--font-mono); font-size: 0.92em; }

/* Header / nav active state */
.nav-links a.is-active { color: var(--fg); background: var(--bg-elev); }

/* Footer */
.footer-links a { color: var(--fg-muted); margin: 0 var(--space-2); text-decoration: none; }
.footer-links a:hover { color: var(--fg); }
.footer-copy { margin-top: var(--space-3); }

/* Cards */
.card-plain {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

/* Form fields */
.field-label {
    display: block;
    font-size: 12.5px;
    font-weight: 500;
    color: var(--fg-muted);
    margin-bottom: var(--space-1);
}
.field-input,
input.field-input,
textarea.field-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--fg);
    font-size: 14px;
    font-family: var(--font-sans);
    outline: none;
    transition: border-color 0.12s, box-shadow 0.12s;
}
.field-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(109, 40, 217, 0.12);
}

/* ============================================================
   Hero variants + join card + topup grid
   ============================================================ */
.hero.hero-tight { padding: var(--space-9) var(--space-5) var(--space-7); }
.hero.hero-tight h1 { font-size: clamp(34px, 5vw, 52px); }

.topup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-5);
}

.join-card, .auth-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-7);
    margin: var(--space-6) auto 0;
    max-width: 440px;
    text-align: left;
    box-shadow: var(--shadow);
}
.auth-submit { width: 100%; }

/* ─── Per-model SEO page: hero + stats + strengths + pricing card ── */
.model-hero {
    padding: 48px 20px 24px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 8%, var(--bg)) 0%, var(--bg) 100%);
    text-align: left;
}
.model-breadcrumb {
    font-size: 13px;
    color: var(--fg-muted);
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}
.model-breadcrumb a { color: var(--fg-muted); text-decoration: none; }
.model-breadcrumb a:hover { color: var(--accent); }
.model-breadcrumb span[aria-current] { color: var(--fg); font-weight: 500; }

.model-provider-badge {
    display: inline-block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 12%, var(--bg));
    border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--border));
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 16px;
}
.model-provider-badge a { color: var(--accent); text-decoration: none; }

.model-title {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin: 0 0 12px;
}
.model-title .accent {
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.model-tagline {
    font-size: 19px;
    line-height: 1.5;
    color: var(--fg-muted);
    margin: 0 0 24px;
    max-width: 640px;
}
.model-cta { display: flex; flex-wrap: wrap; gap: 10px; }
.model-hero-note { font-size: 13px; margin-top: 16px; }

.model-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    padding: 24px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.model-stat-label {
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--fg-muted);
    font-weight: 700;
    margin-bottom: 6px;
}
.model-stat-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--fg);
    line-height: 1.4;
}
.model-stat-value.mono { font-family: var(--font-mono); font-size: 12.5px; word-break: break-all; }

.model-strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 20px;
}
.model-strength {
    position: relative;
    padding: 22px 22px 22px 56px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
}
.model-strength-num {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.model-strength p { margin: 0; font-size: 14.5px; line-height: 1.5; color: var(--fg); }

.model-pricing-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 24px 28px;
    background: linear-gradient(135deg, color-mix(in srgb, #8b5cf6 8%, var(--bg)), color-mix(in srgb, #ec4899 5%, var(--bg)));
    border: 1px solid color-mix(in srgb, #8b5cf6 20%, var(--border));
    border-radius: var(--radius-lg);
    flex-wrap: wrap;
}
.model-pricing-left { flex: 1; min-width: 240px; }
.model-pricing-right { display: flex; gap: 10px; flex-wrap: wrap; }

/* ─── Model SEO hub + per-model grid cards ──────────────────────── */
.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 32px;
}
.model-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--fg);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 22px 16px;
    transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
    box-shadow: var(--shadow);
}
.model-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(139,92,246,0.18);
}
.model-card-provider {
    font-size: 11.5px;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}
.model-card-cta {
    margin-top: auto;
    padding-top: 14px;
    font-size: 13px;
    color: var(--accent);
    font-weight: 600;
}
.provider-group { margin-top: var(--space-6); }
.provider-heading { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; margin: 0 0 12px; }

/* ─── Account page ────────────────────────────────────────────────── */
.account-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}
.account-header-actions { display: flex; gap: 8px; }
.account-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
    overflow-x: auto;
}
.account-tabs .tab-btn {
    background: transparent;
    border: 0;
    padding: 10px 16px;
    color: var(--fg-muted);
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    white-space: nowrap;
}
.account-tabs .tab-btn:hover { color: var(--fg); }
.account-tabs .tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-panel { padding: 8px 0; }

.acc-grid { display: grid; gap: 16px; margin-bottom: 24px; }
.acc-grid-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.acc-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
}
.acc-card-accent { background: linear-gradient(135deg, color-mix(in srgb, #8b5cf6 12%, var(--bg)), color-mix(in srgb, #ec4899 8%, var(--bg))); border-color: color-mix(in srgb, #8b5cf6 30%, var(--border)); }
.acc-card-danger { border-color: color-mix(in srgb, #ef4444 35%, var(--border)); }
.acc-label { font-size: 12px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
.acc-big { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; line-height: 1; margin: 8px 0 6px; font-variant-numeric: tabular-nums; }
.acc-sub { font-size: 13px; color: var(--fg-muted); }
.acc-section-heading { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; margin: 28px 0 12px; }

/* Team seats — manager tab */
.tab-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    margin-left: 4px;
    background: var(--accent);
    color: #fff;
    font-size: 10.5px;
    font-weight: 700;
    border-radius: 999px;
    line-height: 1;
}
.seat-summary {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-top: var(--space-3);
}
.seat-summary-cell {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    text-align: center;
}
.seat-summary-num { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; }
.seat-summary-lbl { color: var(--fg-muted); font-size: 12.5px; margin-top: 2px; }
.seat-list { display: flex; flex-direction: column; gap: 8px; }
.seat-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    flex-wrap: wrap;
}
.seat-row.pending { border-style: dashed; }
.seat-row-main { flex: 1; min-width: 260px; }
.seat-row-plan { font-weight: 600; font-size: 14px; margin-bottom: 6px; text-transform: capitalize; }
.seat-row-link { font-size: 12.5px; font-family: ui-monospace, Menlo, Consolas, monospace; }
.seat-row-meta { font-size: 12.5px; }
.seat-row-actions { display: inline-flex; gap: 6px; }
.btn-sm { padding: 6px 10px; font-size: 12.5px; }
.seat-active { color: var(--accent); font-weight: 600; }
.acc-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.acc-table thead th { text-align: left; font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--fg-muted); padding: 12px 16px; background: var(--bg-elev); border-bottom: 1px solid var(--border); }
.acc-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); color: var(--fg); }
.acc-table tr:last-child td { border-bottom: 0; }
.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600; }
.badge-ok   { background: #d1fae5; color: #065f46; }
.badge-bad  { background: #fee2e2; color: #991b1b; }
.badge-warn { background: #fef3c7; color: #92400e; }
[data-theme="dark"] .badge-ok   { background: rgba(16,185,129,.15); color: #6ee7b7; }
[data-theme="dark"] .badge-bad  { background: rgba(239,68,68,.15);  color: #fca5a5; }
[data-theme="dark"] .badge-warn { background: rgba(245,158,11,.15); color: #fcd34d; }

/* Referral hero card on the Overview */
.referral-card {
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
    border-radius: var(--radius-lg);
    padding: 24px;
    color: #fff;
    margin-bottom: 24px;
    box-shadow: 0 10px 32px rgba(139,92,246,0.25);
    position: relative;
    overflow: hidden;
}
.referral-card .text-muted { color: rgba(255,255,255,0.85) !important; }
.referral-card-sparkle { font-size: 22px; margin-bottom: 4px; }
.referral-row { display: flex; gap: 8px; }
.referral-row .field-input {
    flex: 1;
    background: rgba(255,255,255,0.15);
    color: #fff;
    border-color: rgba(255,255,255,0.25);
    font-family: var(--font-mono);
    font-size: 12.5px;
}
.referral-row .field-input::selection { background: rgba(255,255,255,0.4); }
.referral-row .btn-primary { background: #fff; color: #6d28d9; border: 0; }
.referral-row .btn-primary:hover { background: #f5f3ff; }
.referral-stats { display: flex; gap: 20px; margin-top: 14px; font-size: 13.5px; flex-wrap: wrap; }
.referral-stats strong { font-size: 17px; font-weight: 700; }

.acc-quick { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.acc-quick-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--fg);
    font-size: 13.5px;
    transition: border-color 0.12s ease, transform 0.12s ease;
}
.acc-quick-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.acc-quick-btn .icon { font-size: 22px; flex-shrink: 0; }
.acc-quick-btn strong { display: block; font-size: 14px; margin-bottom: 2px; }
.acc-quick-btn .text-muted { font-size: 12.5px; }
.acc-signout-row { margin-top: 28px; text-align: right; }

.conv-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}
.conv-row:last-child { border-bottom: 0; }
.conv-title {
    flex: 1;
    min-width: 0;
    text-decoration: none;
    color: var(--fg);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.conv-title:hover strong { color: var(--accent); }

.acc-check {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    cursor: pointer;
}
.acc-check input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent); }
.btn-danger { background: #dc2626; color: #fff; border: 0; padding: 10px 18px; border-radius: 8px; font-weight: 600; cursor: pointer; font-size: 14px; text-decoration: none; display: inline-block; }
.btn-danger:hover { background: #b91c1c; }

.onboarding-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin: 32px 0 0;
    text-align: left;
}
.onboarding-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    box-shadow: var(--shadow);
}
.onboarding-step {
    position: absolute;
    top: -14px;
    left: 24px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 4px 10px rgba(109,40,217,0.35);
}
.onboarding-card h3 { margin: 0 0 10px; font-size: 17px; font-weight: 700; }
.onboarding-card p { margin: 0 0 16px; color: var(--fg-muted); font-size: 14px; line-height: 1.5; }
.onboarding-card .input-group { display: flex; gap: 8px; }
.onboarding-card .input-group input { flex: 1; font-size: 12px; font-family: var(--font-mono); }
.onboarding-card .btn + .btn { margin-left: 8px; }
.auth-links {
    margin-top: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 13.5px;
    color: var(--fg-muted);
}
.auth-links a { color: var(--fg-muted); text-decoration: underline; text-decoration-color: var(--border); text-underline-offset: 3px; }
.auth-links a:hover { color: var(--accent); text-decoration-color: var(--accent); }
.auth-links span { margin: 0 8px; opacity: 0.5; }
.auth-icon { display: inline-flex; align-items: center; justify-content: center; width: 80px; height: 80px; margin: 0 auto var(--space-5); border-radius: 50%; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.auth-icon svg { width: 40px; height: 40px; }
.form-alert {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-bottom: var(--space-4);
    font-size: 14px;
}
.form-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-bottom: var(--space-4);
    font-size: 14px;
}
[data-theme="dark"] .form-alert { background: rgba(239,68,68,0.12); border-color: rgba(239,68,68,0.35); color: #fca5a5; }
[data-theme="dark"] .form-success { background: rgba(16,185,129,0.12); border-color: rgba(16,185,129,0.3); color: #6ee7b7; }
.code-input {
    font-size: 28px;
    letter-spacing: 12px;
    text-align: center;
    font-family: var(--font-mono);
}
.form-success-inline {
    display: inline-block;
    color: #166534;
    font-size: 13.5px;
}
[data-theme="dark"] .form-success-inline { color: #6ee7b7; }
.join-plan {
    border-bottom: 1px solid var(--border);
    padding-bottom: var(--space-4);
    margin-bottom: var(--space-4);
}
.join-plan-tier {
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.01em;
}
.join-plan-meta {
    color: var(--fg-muted);
    font-size: 13px;
    margin-top: 4px;
}
.join-submit { width: 100%; }

/* Seat qty picker (multi-seat checkout) */
.join-seats {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--space-4);
    background: var(--bg-elev);
}
.join-seats-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    flex-wrap: wrap;
}
.join-seats-controls {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    padding: 2px;
}
.seat-step {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--fg);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
}
.seat-step:hover { background: var(--bg-elev); }
.seat-input {
    width: 56px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--fg);
    text-align: center;
    font-size: 15px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    -moz-appearance: textfield;
}
.seat-input::-webkit-outer-spin-button,
.seat-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.join-total {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding-top: var(--space-3);
    border-top: 1px dashed var(--border);
}
.join-total-label { color: var(--fg-muted); font-size: 13.5px; }
.join-total-value {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.01em;
    font-variant-numeric: tabular-nums;
}

.join-errors {
    color: #b91c1c;
    font-size: 13.5px;
    min-height: 1.2em;
}
[data-theme="dark"] .join-errors { color: #fca5a5; }

/* Tighter footer (overrides earlier rule that used inline margin) */
.footer { padding: var(--space-7) var(--space-5); text-align: center; }

/* ============================================================
   Share page + API keys page (uses chat shell)
   ============================================================ */
.share-page {
    max-width: 760px;
    margin: var(--space-7) auto;
    padding: 0 var(--space-5);
}
.share-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    color: var(--fg);
    text-decoration: none;
    margin-bottom: var(--space-6);
}
.share-brand-mark {
    width: 22px; height: 22px;
    border-radius: 6px;
    background: linear-gradient(135deg,#8b5cf6,#ec4899);
}
.share-title {
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 4px;
}
.share-cta {
    text-align: center;
    margin-top: var(--space-7);
    padding: var(--space-5);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.apikeys-wrap { max-width: 820px; }
.apikey-create-form {
    display: flex;
    gap: var(--space-2);
    align-items: flex-end;
    margin-bottom: var(--space-6);
}
.apikey-create-field { flex: 1; }
.key-empty {
    color: var(--fg-muted);
    padding: var(--space-7);
    text-align: center;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

/* ============================================================
   Landing API split (pitch + code two-column)
   ============================================================ */
.api-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-7);
    align-items: center;
}
.api-split-pitch h2 { font-size: clamp(26px, 3.5vw, 38px); margin-top: var(--space-3); }
.api-bullets {
    list-style: none;
    padding: 0;
    margin: 0;
}
.api-bullets li {
    padding: 6px 0 6px 24px;
    position: relative;
    color: var(--fg);
    font-size: 14.5px;
}
.api-bullets li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}
.api-split-code .api-tabs { margin-bottom: var(--space-3); }

@media (max-width: 820px) {
    .api-split { grid-template-columns: 1fr; gap: var(--space-5); }
}

/* Footer copy link — whole "© YEAR Faceb LLC" is a single link to home */
.footer-copy {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--fg-muted);
    text-decoration: none;
    margin-top: var(--space-3);
    font-size: 13px;
    border-radius: 6px;
    padding: 4px 8px;
    transition: color 0.12s, background 0.12s;
}
.footer-copy:hover { color: var(--fg); background: var(--bg-elev); }
.footer-copy-icon { color: currentColor; }