/* ==========================================================================
   AI Chat Entrypoint — Tricorder Theme Integration (2026)
   Uses design tokens from custom.css @layer tokens
   Glassmorphism + Glow + Scan-line consistent with .tricorder-card
   ========================================================================== */

/* ---------- CSS Custom Properties (mapped to tricorder tokens) ---------- */
.ai-entrypoint {
    --ai-primary: var(--tricorder-primary, #00E5FF);
    --ai-secondary: var(--tricorder-secondary, #00B8D4);
    --ai-accent: var(--tricorder-accent, #1DE9B6);
    --ai-warn: var(--tricorder-warn, #FFD740);
    --ai-text: var(--tricorder-text, #E0F7FA);
    --ai-muted: var(--tricorder-muted, #82B4C7);
    --ai-dark: var(--tricorder-dark, #0A1628);
    --ai-surface: var(--tricorder-surface-1, rgba(15, 30, 50, 0.85));
    --ai-surface-2: var(--tricorder-surface-2, rgba(20, 40, 60, 0.9));
    --ai-border: var(--tricorder-border, rgba(0, 229, 255, 0.3));
    --ai-border-soft: var(--tricorder-border-soft, rgba(0, 229, 255, 0.15));
    --ai-panel: var(--tricorder-panel, rgba(0, 229, 255, 0.08));
    --ai-glow: var(--glow-primary, 0 0 20px rgba(0, 229, 255, 0.5));
    --ai-glow-soft: var(--shadow-glow, 0 8px 32px rgba(0, 229, 255, 0.18));
    --ai-radius: var(--radius-xl, 20px);
    --ai-radius-md: var(--radius-md, 10px);
    --ai-radius-full: var(--radius-full, 999px);
    --ai-font-display: var(--font-display, 'Space Grotesk', 'Inter', system-ui, sans-serif);
    --ai-font-sans: var(--font-sans, 'Inter', 'Nunito', -apple-system, system-ui, sans-serif);
    --ai-duration-base: var(--duration-base, 240ms);
    --ai-duration-slow: var(--duration-slow, 400ms);
    --ai-ease-spring: var(--ease-spring, cubic-bezier(0.4, 0, 0.2, 1));
    --ai-touch: var(--touch-target, 44px);
}

/* ==========================================================================
   DASHBOARD VARIANT — <details> collapsible card
   ========================================================================== */
.ai-entrypoint-dashboard {
    position: relative;
    border: 1px solid var(--ai-border);
    border-radius: var(--ai-radius);
    background:
        radial-gradient(ellipse at top right, rgba(0, 229, 255, 0.08) 0%, transparent 40%),
        radial-gradient(ellipse at bottom left, rgba(29, 233, 182, 0.05) 0%, transparent 45%),
        var(--ai-surface);
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    box-shadow: var(--ai-glow-soft);
    color: var(--ai-text);
    overflow: hidden;
    transition:
        border-color var(--ai-duration-base) var(--ai-ease-spring),
        box-shadow var(--ai-duration-base) var(--ai-ease-spring);
}
@supports not (backdrop-filter: blur(20px)) {
    .ai-entrypoint-dashboard {
        background: rgba(10, 22, 40, 0.97);
    }
}

/* Scan-line animation (top edge glow, same as .tricorder-card) */
.ai-entrypoint-dashboard::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--ai-primary), transparent);
    animation: ai-scan-line 3.5s linear infinite;
    pointer-events: none;
    z-index: 2;
}

/* Ambient glow pulse */
.ai-entrypoint-dashboard::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 60%);
    animation: ai-pulse-glow 2.4s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

.ai-entrypoint-dashboard:hover {
    border-color: var(--ai-primary);
    box-shadow: var(--ai-glow);
}

/* Open state */
.ai-entrypoint-dashboard[open] {
    border-color: var(--ai-primary);
    box-shadow: var(--ai-glow);
}

.ai-entrypoint-dashboard[open] .ai-entrypoint-chevron {
    transform: rotate(180deg);
}

/* ---- Summary (always visible header) ---- */
.ai-entrypoint-summary {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: background var(--ai-duration-base) ease;
}
.ai-entrypoint-summary:hover {
    background: rgba(0, 229, 255, 0.04);
}
.ai-entrypoint-summary::-webkit-details-marker {
    display: none;
}
.ai-entrypoint-summary::marker {
    display: none;
    content: '';
}

/* Badge (left icon pill) */
.ai-entrypoint-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.45rem 0.85rem;
    border-radius: var(--ai-radius-full);
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.15) 0%, rgba(0, 184, 212, 0.1) 100%);
    border: 1px solid var(--ai-border-soft);
    color: var(--ai-primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    font-family: var(--ai-font-display);
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
    transition: box-shadow var(--ai-duration-base) ease;
}
.ai-entrypoint-summary:hover .ai-entrypoint-badge {
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
}
.ai-entrypoint-badge i {
    font-size: 0.85em;
    filter: drop-shadow(0 0 4px rgba(0, 229, 255, 0.6));
}

/* Copy (title + subtitle) */
.ai-entrypoint-copy {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}
.ai-entrypoint-copy strong {
    font-size: 1rem;
    font-weight: 600;
    color: var(--ai-text);
    font-family: var(--ai-font-display);
    letter-spacing: 0.02em;
    line-height: var(--lh-snug, 1.35);
}
.ai-entrypoint-copy small {
    color: var(--ai-muted);
    font-size: 0.82rem;
    line-height: 1.4;
}

/* Chevron */
.ai-entrypoint-chevron {
    color: var(--ai-primary);
    font-size: 0.85rem;
    transition: transform var(--ai-duration-base) var(--ai-ease-spring);
    opacity: 0.7;
}
.ai-entrypoint-summary:hover .ai-entrypoint-chevron {
    opacity: 1;
}

/* ---- Panel (expanded content) ---- */
.ai-entrypoint-panel {
    position: relative;
    z-index: 1;
    padding: 0 1.25rem 1.25rem;
    animation: ai-panel-in var(--ai-duration-slow) var(--ai-ease-spring);
}

/* Separator line */
.ai-entrypoint-panel::before {
    content: '';
    display: block;
    height: 1px;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, transparent, var(--ai-border), transparent);
}

/* Action buttons grid */
.ai-entrypoint-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}

/* Base button style */
.ai-entrypoint-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.78rem 1.1rem;
    border-radius: var(--ai-radius-md);
    text-decoration: none;
    border: 1px solid var(--ai-border-soft);
    font-family: var(--ai-font-sans);
    font-weight: 600;
    font-size: 0.88rem;
    min-height: var(--ai-touch);
    transition:
        transform var(--ai-duration-base) var(--ai-ease-spring),
        box-shadow var(--ai-duration-base) ease,
        background var(--ai-duration-base) ease,
        border-color var(--ai-duration-base) ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.ai-entrypoint-btn i {
    font-size: 0.95em;
    flex-shrink: 0;
    width: 1.1em;
    text-align: center;
}
.ai-entrypoint-btn:hover {
    transform: translateY(-2px);
    text-decoration: none;
}
.ai-entrypoint-btn:active {
    transform: translateY(0);
}

/* Primary button */
.ai-entrypoint-btn-primary {
    color: var(--ai-dark);
    background: linear-gradient(135deg, var(--ai-secondary) 0%, var(--ai-primary) 100%);
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(0, 229, 255, 0.3);
    font-weight: 700;
}
.ai-entrypoint-btn-primary i {
    filter: drop-shadow(0 0 3px rgba(0, 229, 255, 0.5));
}
.ai-entrypoint-btn-primary:hover {
    color: var(--ai-dark);
    box-shadow: 0 8px 28px rgba(0, 229, 255, 0.45);
    background: linear-gradient(135deg, var(--ai-primary) 0%, var(--ai-accent) 100%);
}

/* Secondary button (glass) */
.ai-entrypoint-btn-secondary {
    color: var(--ai-text);
    background: rgba(0, 229, 255, 0.06);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.ai-entrypoint-btn-secondary i {
    color: var(--ai-secondary);
}
.ai-entrypoint-btn-secondary:hover {
    color: var(--ai-primary);
    background: rgba(0, 229, 255, 0.12);
    border-color: var(--ai-border);
    box-shadow: 0 4px 16px rgba(0, 229, 255, 0.15);
}

/* Metadata footer */
.ai-entrypoint-metadata {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    color: var(--ai-muted);
    font-size: 0.78rem;
    letter-spacing: 0.02em;
}
.ai-entrypoint-metadata span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.ai-entrypoint-metadata i {
    color: var(--ai-secondary);
    font-size: 0.85em;
    opacity: 0.8;
}

/* ==========================================================================
   HEADER VARIANT — pill-shaped link (navbar / sidebar)
   ========================================================================== */
.ai-entrypoint-header {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.5rem 0.95rem;
    border-radius: var(--ai-radius-full);
    color: var(--ai-text);
    text-decoration: none;
    background:
        radial-gradient(ellipse at center, rgba(0, 229, 255, 0.1) 0%, transparent 70%),
        var(--ai-surface);
    border: 1px solid var(--ai-border-soft);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    box-shadow: 0 4px 16px rgba(0, 229, 255, 0.12);
    overflow: hidden;
    transition:
        transform var(--ai-duration-base) var(--ai-ease-spring),
        box-shadow var(--ai-duration-base) ease,
        border-color var(--ai-duration-base) ease;
    min-height: var(--ai-touch);
}

/* Scan-line on header */
.ai-entrypoint-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--ai-primary), transparent);
    opacity: 0.6;
}

.ai-entrypoint-header:hover {
    color: var(--ai-primary);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(0, 229, 255, 0.25);
    border-color: var(--ai-border);
    text-decoration: none;
}

.ai-entrypoint-header-icon {
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--ai-radius-full);
    background: rgba(0, 229, 255, 0.12);
    border: 1px solid var(--ai-border-soft);
    color: var(--ai-primary);
    font-size: 0.85rem;
    flex-shrink: 0;
    transition: box-shadow var(--ai-duration-base) ease;
}
.ai-entrypoint-header:hover .ai-entrypoint-header-icon {
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
}

.ai-entrypoint-header-copy {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    min-width: 0;
}
.ai-entrypoint-header-copy strong {
    font-size: 0.84rem;
    letter-spacing: 0.02em;
    font-weight: 600;
    color: var(--ai-text);
    font-family: var(--ai-font-display);
}
.ai-entrypoint-header-copy small {
    font-size: 0.68rem;
    color: var(--ai-muted);
}

.ai-entrypoint-header-pulse {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: var(--ai-radius-full);
    background: var(--ai-accent);
    box-shadow: 0 0 0 0 rgba(29, 233, 182, 0.6);
    animation: ai-pulse-led 2s var(--ai-ease-spring, ease) infinite;
    flex-shrink: 0;
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes ai-scan-line {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes ai-pulse-glow {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50%      { opacity: 0.55; transform: scale(1.04); }
}

@keyframes ai-pulse-led {
    0%   { box-shadow: 0 0 0 0 rgba(29, 233, 182, 0.6); }
    70%  { box-shadow: 0 0 0 10px rgba(29, 233, 182, 0); }
    100% { box-shadow: 0 0 0 0 rgba(29, 233, 182, 0); }
}

@keyframes ai-panel-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   FOCUS STATES (WCAG 2.2)
   ========================================================================== */
.ai-entrypoint-summary:focus-visible {
    outline: 2px solid var(--ai-primary);
    outline-offset: 3px;
    border-radius: var(--ai-radius);
}
.ai-entrypoint-btn:focus-visible {
    outline: 2px solid var(--ai-primary);
    outline-offset: 3px;
}
.ai-entrypoint-header:focus-visible {
    outline: 2px solid var(--ai-primary);
    outline-offset: 3px;
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    .ai-entrypoint-dashboard::before,
    .ai-entrypoint-header::before {
        animation: none;
    }
    .ai-entrypoint-dashboard::after {
        animation: none;
    }
    .ai-entrypoint-header-pulse {
        animation: none;
    }
    .ai-entrypoint-dashboard,
    .ai-entrypoint-dashboard:hover,
    .ai-entrypoint-header,
    .ai-entrypoint-btn {
        transition-duration: 0.01ms;
    }
    .ai-entrypoint-panel {
        animation: none;
    }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 991.98px) {
    .ai-entrypoint-summary {
        grid-template-columns: 1fr auto;
        gap: 0.75rem;
        padding: 0.85rem 1rem;
    }
    .ai-entrypoint-badge {
        grid-column: 1 / -1;
        justify-self: start;
    }
    .ai-entrypoint-chevron {
        display: none;
    }
    .ai-entrypoint-actions {
        grid-template-columns: 1fr;
    }
    .ai-entrypoint-panel {
        padding: 0 1rem 1rem;
    }
}

@media (max-width: 575.98px) {
    .ai-entrypoint-summary {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        padding: 0.75rem;
    }
    .ai-entrypoint-badge {
        justify-self: start;
    }
    .ai-entrypoint-copy strong {
        font-size: 0.92rem;
    }
    .ai-entrypoint-btn {
        padding: 0.65rem 0.85rem;
        font-size: 0.82rem;
    }
    .ai-entrypoint-metadata {
        flex-direction: column;
        gap: 0.35rem;
    }
}

/* ==========================================================================
   DARK THEME FALLBACK (when tricorder tokens are not loaded)
   ========================================================================== */
@media (prefers-color-scheme: dark) {
    .ai-entrypoint-dashboard:not([style*="--tricorder-primary"]) {
        background:
            radial-gradient(ellipse at top right, rgba(0, 180, 220, 0.1) 0%, transparent 40%),
            rgba(8, 20, 35, 0.95);
        border-color: rgba(0, 180, 220, 0.25);
    }
}