/* --- DESIGN SYSTEM & CSS VARIABLES --- */
:root {
    --bg-dark-base: #060709;
    --bg-dark-surface: rgba(13, 16, 23, 0.7);
    --bg-dark-panel: rgba(18, 22, 33, 0.65);

    --accent-gold: #dfb76c;
    --accent-gold-glow: rgba(223, 183, 108, 0.4);
    --accent-gold-hover: #ecd29b;

    --text-primary: #f1f5f9;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-active: rgba(223, 183, 108, 0.5);

    --font-serif: 'Cinzel', Georgia, serif;
    --font-sans: 'Plus Jakarta Sans', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --red-record: #ef4444;
}

/* --- RESET & BASIC STYLES --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    height: 100%;
    overscroll-behavior: none;
}

body {
    background-color: var(--bg-dark-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    overflow: hidden;
    height: 100vh;
    height: 100dvh;
    /* dynamic viewport height — ignores the mobile browser's address bar */
    width: 100vw;
    position: relative;
    overscroll-behavior: none;
    /* stop iOS/Android pull-to-refresh & rubber-banding from fighting swipes */
    -webkit-tap-highlight-color: transparent;
}

body.loading {
    overflow: hidden !important;
}

/* --- BACKGROUND GLOW EFFECTS --- */
.ambient-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.25;
}

.bg-glow-1 {
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-gold) 0%, transparent 70%);
    top: -10vw;
    left: -10vw;
}

.bg-glow-2 {
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, #5b3d91 0%, transparent 70%);
    bottom: -5vw;
    right: -5vw;
}

/* --- LOADER SCREEN --- */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(4, 5, 7, 0.96);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.loader-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loader-content {
    text-align: center;
    width: 100%;
    max-width: 450px;
    padding: 2rem 1.25rem;
}

.loader-title {
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 11vw, 3.5rem);
    font-weight: 800;
    letter-spacing: clamp(3px, 1.5vw, 8px);
    color: var(--accent-gold);
    text-shadow: 0 0 30px var(--accent-gold-glow);
    margin-bottom: 0.5rem;
    animation: pulseGlow 3s infinite ease-in-out;
}

.loader-subtitle {
    font-family: var(--font-sans);
    color: var(--text-muted);
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 2.5rem;
}

.loader-progress-container {
    width: 100%;
    height: 3px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.loader-progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-gold) 0%, var(--accent-gold-hover) 100%);
    box-shadow: 0 0 10px var(--accent-gold);
    border-radius: 2px;
    transition: width 0.15s ease-out;
}

.loader-status {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-gold);
    margin-bottom: 0.5rem;
}

.loader-details {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

/* --- MAIN GRID & LAYOUT --- */
.app-container {
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    height: 100dvh;
    width: 100vw;
    background-color: #000;
    padding: 0;
    z-index: 1;
    touch-action: none;
    /* Book gestures are handled on the canvas surface. */
}

#canvas-container.book-interactive,
#canvas-container.book-interactive canvas {
    cursor: grab;
}

#canvas-container.book-pressing,
#canvas-container.book-pressing canvas,
#canvas-container.book-rotating,
#canvas-container.book-rotating canvas {
    cursor: grabbing;
}

#canvas-container {
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

.book-gesture-hint {
    position: absolute;
    bottom: max(22px, env(safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    max-width: calc(100% - 32px);
    width: max-content;
    padding: 8px 13px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    color: rgba(255, 255, 255, 0.72);
    background: rgba(12, 12, 16, 0.7);
    font: 11px/1.5 'Plus Jakarta Sans', sans-serif;
    text-align: center;
    pointer-events: none;
}

.book-gesture-hint[hidden] { display: none; }

.app-header {
    display: none !important;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 4px;
    color: var(--accent-gold);
    text-shadow: 0 0 15px var(--accent-gold-glow);
}

.brand-badge {
    background-color: rgba(223, 183, 108, 0.1);
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    letter-spacing: 1px;
    font-weight: 600;
    text-transform: uppercase;
}

.header-center-info {
    display: flex;
    gap: 1.5rem;
}

.info-tag {
    font-size: 0.8rem;
    color: var(--text-muted);
    background-color: rgba(255, 255, 255, 0.03);
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.info-tag i {
    color: var(--accent-gold);
}

.fps-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: #4ade80;
    background-color: rgba(74, 222, 128, 0.08);
    border: 1px solid rgba(74, 222, 128, 0.2);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    font-weight: 500;
}

/* --- MAIN CONTENT AREA --- */
.app-content {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

/* --- VIEWPORT SECTION --- */
.viewport-section {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* --- CAMERA MONITOR VIEWPORT --- */
.camera-monitor-frame {
    position: relative;
    background-color: #000;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

/* Viewport Aspect Container */
#canvas-container {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

/* Viewport Overlays */
.monitor-header,
.monitor-footer {
    display: none !important;
}

.monitor-header {
    top: 0;
}

.monitor-footer {
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, transparent 100%);
}

.rec-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.rec-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--red-record);
    box-shadow: 0 0 8px var(--red-record);
    animation: blink 1.2s infinite steps(2, start);
}

.rec-text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.monitor-cam-name {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.monitor-aspect {
    font-size: 0.75rem;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.1rem 0.35rem;
    border-radius: 2px;
}

.crop-mark {
    display: none !important;
}

.crosshair {
    display: none !important;
}

.footer-stat {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.stat-lbl {
    font-size: 0.6rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.stat-val {
    font-size: 0.75rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Quick Actions below Viewport */
.viewport-quick-controls {
    display: none !important;
}

.btn {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.6rem 1.25rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-secondary.active {
    background-color: rgba(223, 183, 108, 0.12);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    box-shadow: 0 0 15px rgba(223, 183, 108, 0.1);
}

/* Viewer controls are archived for the portfolio showcase. */
.sidebar-panel { display: none !important; }

/* --- ANIMATIONS & KEYFRAMES --- */
@keyframes blink {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

@keyframes pulseGlow {

    0%,
    100% {
        text-shadow: 0 0 30px var(--accent-gold-glow);
    }

    50% {
        text-shadow: 0 0 50px rgba(223, 183, 108, 0.7), 0 0 20px rgba(223, 183, 108, 0.4);
    }
}

/* --- RESPONSIVE LAYOUTS --- */
@media (max-width: 992px) {
    /* NOTE: no aspect-ratio override here anymore — the 3D viewport (and the
       Blender camera driving it, framed at 1080x1920) should fill the whole
       portrait screen on mobile, not get letterboxed into a 16:9 strip. */
}

@media (max-width: 576px) {
    .app-container {
        padding: 0.75rem;
        gap: 0.75rem;
    }

    .brand-title {
        font-size: 1.4rem;
        letter-spacing: 2px;
    }

    .header-center-info {
        display: none;
    }

    .monitor-header,
    .monitor-footer {
        padding: 0.5rem 0.75rem;
    }

    .crop-mark {
        width: 12px;
        height: 12px;
    }

    .top-left {
        top: 0.75rem;
        left: 0.75rem;
    }

    .top-right {
        top: 0.75rem;
        right: 0.75rem;
    }

    .bottom-left {
        bottom: 0.75rem;
        left: 0.75rem;
    }

    .bottom-right {
        bottom: 0.75rem;
        right: 0.75rem;
    }

    .footer-stat:nth-child(2),
    .footer-stat:nth-child(3) {
        display: none;
    }
}

/* ---- Floating Trigger Button (docked to the right edge) ---- */
.pe-trigger {
    position: fixed;
    top: 50%;
    right: 0;
    transform: translateY(-50%) translateX(0);
    z-index: 400;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(180deg, var(--accent-gold) 0%, var(--accent-gold-hover) 100%);
    color: var(--text-dark);
    border: none;
    padding: 1rem 0.65rem;
    border-radius: 12px 0 0 12px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(223, 183, 108, 0.35), -2px 0 12px rgba(0, 0, 0, 0.3);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.25s ease, right 0.25s ease;
}

.pe-trigger.pe-trigger-visible {
    opacity: 1;
    pointer-events: auto;
}

.pe-trigger:hover {
    transform: translateY(-50%) translateX(-4px);
    box-shadow: 0 6px 26px rgba(223, 183, 108, 0.5), -2px 0 16px rgba(0, 0, 0, 0.35);
}

.pe-trigger .ui-icon {
    font-size: 1.1rem;
}

.pe-trigger-label {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

@media (max-width: 900px) {
    .pe-trigger { padding: 0.85rem 0.5rem; right: env(safe-area-inset-right, 0); }
    .pe-trigger-label { display: none; }
}

/* --- AUTOPLAY CLOSE BUTTON --- */
.close-book-btn {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    background-color: var(--accent-gold);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(223, 183, 108, 0.4);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.close-book-btn.visible {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.close-book-btn:hover {
    background-color: var(--accent-gold-hover);
    box-shadow: 0 6px 20px rgba(223, 183, 108, 0.6);
}
/* Plain showcase link and full-editor popup. */
.showcase-brand {
    position: fixed;
    top: max(24px, env(safe-area-inset-top));
    left: max(24px, env(safe-area-inset-left));
    z-index: 410;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 0 16px;
    max-width: calc(100vw - 40px);
    border: 1px solid rgba(216, 190, 108, 0.5);
    border-radius: 999px;
    background: rgba(14, 12, 8, 0.92);
    color: #f4e4a5;
    text-decoration: none;
    white-space: nowrap;
    font: 700 12px/1.5 var(--font-sans);
}
.showcase-brand:hover { background: #211c10; border-color: #d8be6c; }
.showcase-brand .showcase-brand-heart { width: 17px; height: 17px; stroke-width: 1.5; }
.showcase-brand-arrow { font-size: 14px; line-height: 1; color: #e4d6a1; }
.showcase-brand:focus-visible,
.showcase-dialog a:focus-visible,
.showcase-dialog button:focus-visible {
    outline: 2px solid #ddd;
    outline-offset: 4px;
}
.showcase-dialog {
    position: fixed;
    inset: 0;
    margin: auto;
    box-sizing: border-box;
    width: min(420px, calc(100vw - 32px));
    max-width: none;
    max-height: calc(100dvh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
    padding: 34px 28px 22px;
    overflow: auto;
    overscroll-behavior: contain;
    border: 1px solid rgba(216, 190, 108, 0.4);
    border-radius: 16px;
    background: #100e0a;
    color: #f4e4a5;
    font-family: var(--font-sans);
    text-align: left;
}
.showcase-dialog-brand { display: flex; align-items: center; gap: 9px; margin-bottom: 24px; color: #f4e4a5; font-size: 12px; font-weight: 700; }
.showcase-dialog-brand .ui-icon { width: 18px; height: 18px; stroke-width: 1.5; }
.showcase-dialog::backdrop { background: rgba(0, 0, 0, 0.7); }
.showcase-dialog-close {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 6px;
    color: #aaa;
    background: transparent;
    cursor: pointer;
}
.showcase-dialog-close:hover { color: #f4e4a5; }
.showcase-dialog h2 {
    margin: 0 24px 12px 0;
    font: 600 22px/1.4 var(--font-sans);
    letter-spacing: -0.4px;
}
#showcase-description {
    margin-bottom: 24px;
    font-size: 14px;
    line-height: 1.75;
    color: #aaa;
}
.showcase-cta {
    display: block;
    padding: 12px 16px;
    border: 1px solid rgba(216, 190, 108, 0.5);
    border-radius: 999px;
    color: #f4e4a5;
    background: #19160e;
    text-decoration: none;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.5;
}
.showcase-cta > .ui-icon { margin-left: 7px; font-size: 10px; }
.showcase-new-tab { display: block; margin-top: 3px; color: #a69b7b; font-size: 10px; font-weight: 400; }
.showcase-cta:hover { background: #211c10; border-color: #d8be6c; }
.showcase-dismiss {
    display: block;
    width: 100%;
    min-height: 44px;
    margin-top: 8px;
    padding: 9px 12px;
    border: 0;
    background: transparent;
    color: #aaa;
    font: 12px/1.6 var(--font-sans);
    cursor: pointer;
}
.showcase-dismiss:hover { color: #eee; }
@media (max-width: 600px) {
    .showcase-brand { top: max(20px, env(safe-area-inset-top)); left: max(20px, env(safe-area-inset-left)); padding: 0 15px; }
    .showcase-dialog { padding: 32px 22px 18px; }
    .showcase-dialog h2 { font-size: 20px; }
}

.loader-overlay[hidden] { display: none; }
.loader-overlay.fade-out .loader-title { animation: none; }

/* Small local symbol sprite replaces the icon stylesheet and font downloads. */
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; pointer-events: none; }
.ui-icon { display: inline-block; width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; vertical-align: -0.15em; }