:root {
    --bg-0: #050912;
    --bg-1: #0a1124;
    --surface: rgba(15, 23, 42, 0.65);
    --surface-2: rgba(15, 23, 42, 0.35);
    --border: rgba(56, 189, 248, 0.18);
    --border-strong: rgba(56, 189, 248, 0.45);
    --text: #e2e8f0;
    --muted: #94a3b8;
    --dim: #64748b;
    --accent: #38bdf8;
    --accent-2: #6366f1;
    --success: #10b981;
    --danger: #ef4444;
    --warn: #f59e0b;
    --radius: 14px;
    --radius-lg: 20px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: radial-gradient(1200px 600px at 80% -10%, #1e3a8a22 0%, transparent 60%),
                radial-gradient(900px 500px at 0% 100%, #0ea5e922 0%, transparent 55%),
                linear-gradient(180deg, var(--bg-0), var(--bg-1));
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

.bg-grid {
    position: fixed; inset: 0;
    background-image:
        linear-gradient(rgba(56, 189, 248, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 75%);
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    top: -200px; left: 50%;
    width: 800px; height: 800px;
    transform: translateX(-50%);
    background: radial-gradient(circle, rgba(56, 189, 248, 0.12), transparent 70%);
    pointer-events: none;
    z-index: 0;
    animation: float 12s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(40px); }
}

/* ---------- Topbar ---------- */
.topbar {
    position: relative; z-index: 2;
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 28px;
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(5, 9, 18, 0.6);
}

.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
    width: 42px; height: 42px;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    display: grid; place-items: center;
    color: #fff;
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.4), inset 0 1px 0 rgba(255,255,255,0.2);
}
.brand h1 { margin: 0; font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; }
.brand-sub {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.status-pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.08);
    border-radius: 999px;
    letter-spacing: 0.1em;
}
.status-led {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
    animation: blink 1.6s ease-in-out infinite;
}

/* ---------- Container & layout ---------- */
.container {
    position: relative; z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 36px 24px 64px;
}

.tabs {
    display: inline-flex;
    padding: 5px;
    margin: 0 auto 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.container > .tabs { display: flex; width: max-content; margin-left: auto; margin-right: auto; }

.tab {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 22px;
    background: transparent;
    border: none;
    border-radius: 10px;
    color: var(--muted);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
}
.tab:hover { color: var(--text); }
.tab.active {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    box-shadow: 0 4px 20px rgba(56, 189, 248, 0.35);
}

.pane { display: none; animation: fade-up 0.4s ease both; }
.pane.active { display: block; }

@keyframes fade-up {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.grid { display: grid; gap: 24px; }
.grid-5-7 { grid-template-columns: 5fr 7fr; }
.grid-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 768px) {
    .grid-5-7, .grid-2 { grid-template-columns: 1fr; }
}

/* ---------- Card ---------- */
.card {
    position: relative;
    padding: 28px;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.card::before {
    content: '';
    position: absolute; inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.4), transparent 50%, rgba(99, 102, 241, 0.25));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0.6;
}

.card-head { margin-bottom: 22px; }
.card-head h2 { margin: 0 0 6px; font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; }
.card-head p { margin: 0; color: var(--muted); font-size: 0.875rem; }
.hint-note {
    margin: 8px 0 16px;
    padding: 12px 14px;
    background: rgba(56, 189, 248, 0.06);
    border-left: 3px solid var(--accent);
    border-radius: 6px;
    color: var(--muted);
    font-size: 0.875rem;
    line-height: 1.6;
}
.hint-note b { color: var(--text); font-weight: 600; }
.hint-note i { color: var(--text); }

.label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ---------- Dropzone ---------- */
.dropzone {
    display: block;
    position: relative;
    margin-bottom: 16px;
    border: 1.5px dashed rgba(56, 189, 248, 0.25);
    border-radius: var(--radius);
    background: rgba(15, 23, 42, 0.4);
    cursor: pointer;
    overflow: hidden;
    transition: all 0.25s ease;
}
.dropzone:hover {
    border-color: var(--accent);
    background: rgba(56, 189, 248, 0.05);
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.08);
}
.dropzone.has-file { border-style: solid; border-color: var(--border-strong); }
.dropzone.dragover {
    border-color: var(--accent);
    background: rgba(56, 189, 248, 0.1);
    transform: scale(1.005);
}

.dz-empty {
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 10px;
    padding: 40px 20px;
    color: var(--muted);
}
.dz-empty svg { color: var(--accent); opacity: 0.7; }
.dz-title { font-weight: 500; color: var(--text); font-size: 0.95rem; }
.dz-sub {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--dim);
}

.dz-preview {
    display: none;
    width: 100%; max-height: 280px;
    object-fit: contain;
    background: #000;
}
.dropzone.has-file .dz-empty { display: none; }
.dropzone.has-file .dz-preview { display: block; }

/* ---------- Button ---------- */
.btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 13px 22px;
    font-family: inherit;
    font-size: 0.925rem;
    font-weight: 500;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(56, 189, 248, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
    position: relative; overflow: hidden;
}
.btn-primary::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.25), transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}
.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 28px rgba(56, 189, 248, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-primary:hover:not(:disabled)::after { transform: translateX(100%); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Empty / Error ---------- */
.empty-state {
    display: flex; flex-direction: column; align-items: center; gap: 12px;
    padding: 56px 20px;
    color: var(--muted);
    font-size: 0.9rem;
    text-align: center;
}
.empty-icon {
    width: 56px; height: 56px;
    display: grid; place-items: center;
    border-radius: 14px;
    background: rgba(56, 189, 248, 0.08);
    color: var(--accent);
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    border: 1px solid;
}
.alert-danger {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.25);
    color: #fca5a5;
}

/* ---------- Result blocks ---------- */
.badge-row {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 16px;
}
.badge-count {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 0.82rem;
    color: #6ee7b7;
}

.result-img {
    width: 100%; max-height: 420px;
    object-fit: contain;
    background: #000;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    animation: fade-up 0.35s ease;
}

.active-face-card {
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 18px 20px;
    margin-top: 8px;
    border: 1.5px solid rgba(34, 197, 94, 0.5);
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.06), rgba(15, 23, 42, 0.5));
    box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.18), 0 8px 24px rgba(0, 0, 0, 0.3);
    animation: pop-in 0.35s ease;
}
.active-face-card img {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 2px solid rgba(34, 197, 94, 0.6);
    box-shadow: 0 0 22px rgba(34, 197, 94, 0.25);
    flex-shrink: 0;
    background: #000;
}
.active-face-info {
    flex: 1;
    min-width: 0;
}
.active-face-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.4rem;
    font-weight: 800;
    color: #22c55e;
    line-height: 1;
    letter-spacing: -0.02em;
    text-shadow: 0 0 20px rgba(34, 197, 94, 0.35);
    margin-bottom: 16px;
}
.active-face-stats {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.active-face-stats > div {
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.active-face-stats .stat-key {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    color: var(--dim);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.active-face-stats .stat-val {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.92rem;
    color: var(--text);
    font-weight: 600;
    word-break: break-all;
}
@media (max-width: 600px) {
    .active-face-card { flex-direction: column; align-items: stretch; text-align: center; }
    .active-face-card img { width: 100%; max-width: 240px; height: auto; aspect-ratio: 1; margin: 0 auto; }
    .active-face-num { margin-bottom: 12px; }
    .active-face-stats > div { align-items: center; }
}

/* ---------- Compare result ---------- */
.verdict {
    display: flex; align-items: center; gap: 14px;
    padding: 18px 22px;
    border-radius: var(--radius);
    border: 1px solid;
    margin-top: 28px;
    animation: fade-up 0.4s ease;
}
.verdict.success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.35);
    color: #6ee7b7;
}
.verdict.fail {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}
.verdict-title { font-weight: 600; font-size: 1rem; }
.verdict-sub {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem; letter-spacing: 0.06em;
    opacity: 0.75; margin-top: 2px;
}

.caption {
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 8px;
}
.caption b { color: var(--text); font-weight: 600; }
.legend { display: inline-flex; align-items: center; gap: 5px; margin-left: 10px; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 3px; }
.dot-match { background: #22c55e; box-shadow: 0 0 8px #22c55e; }
.dot-active { background: #22c55e; box-shadow: 0 0 8px #22c55e; }
.dot-other { background: var(--danger); }

/* ---------- Image overlay wrapper ---------- */
.overlay-wrap {
    position: relative;
    display: block;
    width: 100%;
    background: #000;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    line-height: 0;
    margin-bottom: 4px;
}
.overlay-wrap img {
    display: block;
    width: 100%;
    max-height: 420px;
    object-fit: contain;
    background: #000;
}
.overlay-wrap svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    user-select: none;
}
.overlay-wrap.interactive svg { pointer-events: auto; }
.overlay-wrap.interactive svg [data-face-idx] { cursor: pointer; transition: opacity 0.2s ease; }
.overlay-wrap.interactive svg [data-face-idx]:hover { opacity: 0.85; }

/* ---------- Face navigation ---------- */
.face-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px 24px;
    margin-top: 12px;
    padding: 10px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 9px;
    background: linear-gradient(135deg, rgba(56,189,248,0.16), rgba(99,102,241,0.16));
    color: var(--accent);
    border: 1px solid rgba(56,189,248,0.3);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}
.nav-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(56, 189, 248, 0.3);
}
.nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}
.face-nav-counter {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--muted);
    letter-spacing: 0.04em;
}
.face-nav-counter b { color: var(--accent); font-weight: 700; }

.match-row {
    display: flex; align-items: center; justify-content: center;
    gap: 24px; margin: 28px 0;
    flex-wrap: wrap;
}
.match-item { text-align: center; }
.match-arrow { color: var(--accent); }

.face-crop {
    width: 160px; height: 160px;
    object-fit: cover;
    border: 2px solid var(--border-strong);
    border-radius: var(--radius);
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.2);
    animation: pop-in 0.4s ease;
}
@keyframes pop-in {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

/* ---------- Similarity hero ---------- */
.similarity-hero {
    display: flex; align-items: center; justify-content: space-between;
    gap: 20px;
    padding: 22px 28px;
    margin-top: 14px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(99, 102, 241, 0.06));
    border: 1px solid rgba(56, 189, 248, 0.35);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.hero-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 4px;
    font-weight: 600;
}
.hero-sub { font-size: 0.78rem; color: var(--muted); }
.hero-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ---------- Metrics grid ---------- */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
}
.metric-card {
    padding: 14px 12px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--surface-2);
    text-align: center;
    animation: pop-in 0.4s ease both;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}
.metric-card.ok { border-color: rgba(16, 185, 129, 0.45); }
.metric-card.no { border-color: rgba(239, 68, 68, 0.32); }
.metric-card.unset { opacity: 0.85; }

.metric-card-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 8px;
    font-weight: 600;
}
.metric-card-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.1;
}
.metric-card-sim {
    font-size: 0.72rem;
    color: var(--muted);
    margin-top: 2px;
}
.metric-card-thr {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--dim);
    margin: 6px 0 8px;
    letter-spacing: 0.04em;
}
.metric-card-state {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    letter-spacing: 0.1em;
    font-weight: 700;
    border: 1px solid;
}
.metric-card.ok .metric-card-state {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border-color: rgba(16, 185, 129, 0.4);
}
.metric-card.no .metric-card-state {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.3);
}
.metric-card.unset .metric-card-state {
    background: rgba(148, 163, 184, 0.08);
    color: var(--muted);
    border-color: rgba(148, 163, 184, 0.2);
}

.mt-4 { margin-top: 24px; }
.hidden { display: none !important; }

.section-caption {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

/* ---------- Metric info body (di tab Info) ---------- */
.metric-info-body {
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.65;
}

/* Pointer dari tab Compare yang ngarahin ke tab Info */
.info-pointer {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 18px 0 0;
    padding: 12px 16px;
    border: 1px dashed rgba(56, 189, 248, 0.3);
    border-radius: var(--radius);
    background: rgba(56, 189, 248, 0.05);
    color: var(--muted);
    font-size: 0.84rem;
}
.info-pointer b {
    color: var(--accent);
    font-weight: 600;
}
.metric-info-body h4 {
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 600;
    margin: 16px 0 6px;
}
.metric-info-body h4:first-child { margin-top: 2px; }
.metric-info-body p { margin: 0 0 8px; }
.metric-info-body ul {
    margin: 6px 0 10px;
    padding-left: 18px;
}
.metric-info-body li { margin-bottom: 4px; }
.metric-info-body b { color: var(--text); font-weight: 600; }
.metric-info-body code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82em;
    padding: 1px 6px;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.18);
    border-radius: 5px;
    color: var(--accent);
}
.formula-block {
    margin: 12px 0 14px;
    padding: 14px 16px;
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.formula-name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 8px;
    font-weight: 700;
}

.formula-eq {
    margin: 6px 0;
    padding: 16px 20px;
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.18);
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.02rem;
    color: var(--text);
    line-height: 1.4;
    text-align: center;
    overflow-x: auto;
}
.formula-eq + .formula-eq { margin-top: 4px; }

.frac {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    vertical-align: middle;
    margin: 0 5px;
    font-size: 0.94em;
    line-height: 1.15;
    text-align: center;
}
.frac > .num {
    padding: 0 10px 4px;
    border-bottom: 1.5px solid currentColor;
    white-space: nowrap;
}
.frac > .den {
    padding: 4px 10px 0;
    white-space: nowrap;
}

.radicand {
    text-decoration: overline;
    padding: 0 4px 0 2px;
}

.eq-comma {
    display: inline-block;
    margin: 0 8px 0 2px;
    color: var(--muted);
}

.formula-desc {
    margin: 12px 0 0;
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.55;
}
.formula-desc b { color: var(--text); font-weight: 600; }

.ref-group-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin: 14px 0 6px !important;
    font-weight: 600;
}
.ref-list {
    list-style: none;
    padding: 0;
    margin: 0 0 8px !important;
}
.ref-list li {
    padding: 10px 14px;
    margin-bottom: 6px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.45);
    font-size: 0.84rem;
    line-height: 1.55;
}
.ref-list li:hover { border-color: rgba(56, 189, 248, 0.4); }
.ref-list a {
    display: inline-block;
    margin-top: 4px;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    text-decoration: none;
    word-break: break-all;
    padding: 2px 8px;
    border-radius: 5px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.2);
    transition: all 0.2s ease;
}
.ref-list a:hover {
    background: rgba(56, 189, 248, 0.18);
    border-color: rgba(56, 189, 248, 0.5);
    text-decoration: none;
}
.ref-list a::before {
    content: '↗ ';
    opacity: 0.7;
}

/* ---------- Threshold table ---------- */
.threshold-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.83rem;
    margin: 10px 0 12px;
}
.threshold-table th, .threshold-table td {
    padding: 6px 12px;
    border: 1px solid var(--border);
    text-align: left;
}
.threshold-table thead th {
    background: rgba(56, 189, 248, 0.08);
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
}
.threshold-table tbody tr:hover { background: rgba(255,255,255,0.03); }
.threshold-table code { font-size: 0.78rem; }

/* ---------- Hi-tech Loader ---------- */
.loader {
    display: flex; flex-direction: column;
    align-items: center; gap: 22px;
    padding: 48px 20px;
    animation: fade-up 0.3s ease;
}
.dual-scanner {
    display: flex; align-items: center; gap: 18px;
}
.scanner { display: flex; flex-direction: column; align-items: center; gap: 16px; }

.scan-frame {
    position: relative;
    width: 180px; height: 180px;
    border-radius: 18px;
    background: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.08), transparent 70%);
}
.scanner.small .scan-frame { width: 120px; height: 120px; }

.corner {
    position: absolute;
    width: 26px; height: 26px;
    border: 2.5px solid var(--accent);
    filter: drop-shadow(0 0 6px rgba(56, 189, 248, 0.7));
    animation: corner-glow 1.8s ease-in-out infinite;
}
.corner.tl { top: 0; left: 0; border-right: none; border-bottom: none; border-top-left-radius: 6px; }
.corner.tr { top: 0; right: 0; border-left: none; border-bottom: none; border-top-right-radius: 6px; }
.corner.bl { bottom: 0; left: 0; border-right: none; border-top: none; border-bottom-left-radius: 6px; }
.corner.br { bottom: 0; right: 0; border-left: none; border-top: none; border-bottom-right-radius: 6px; }

@keyframes corner-glow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.scan-line {
    position: absolute;
    left: 12px; right: 12px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    box-shadow: 0 0 18px var(--accent), 0 0 4px #fff;
    animation: scan-move 2.4s ease-in-out infinite;
}
@keyframes scan-move {
    0%   { top: 14px; opacity: 0.2; }
    50%  { top: calc(100% - 16px); opacity: 1; }
    100% { top: 14px; opacity: 0.2; }
}

.scan-face {
    position: absolute; inset: 22px;
    color: rgba(56, 189, 248, 0.55);
    filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.4));
    animation: face-pulse 2s ease-in-out infinite;
}
.scanner.small .scan-face { inset: 16px; }

@keyframes face-pulse {
    0%, 100% { opacity: 0.45; }
    50% { opacity: 0.85; }
}

.scan-text {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    color: var(--accent);
    text-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
}
.led {
    width: 9px; height: 9px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
    animation: blink 1.2s ease-in-out infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

.dots::after {
    display: inline-block;
    content: '';
    width: 1.4em; text-align: left;
    animation: dots 1.6s steps(4, end) infinite;
}
@keyframes dots {
    0%   { content: ''; }
    25%  { content: '.'; }
    50%  { content: '..'; }
    75%  { content: '...'; }
}

.link-line {
    position: relative;
    width: 80px; height: 2px;
    background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.3), transparent);
    border-radius: 2px;
}
.link-pulse {
    position: absolute; top: -3px; left: 0;
    width: 16px; height: 8px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    border-radius: 50%;
    box-shadow: 0 0 14px var(--accent);
    animation: link-travel 1.8s ease-in-out infinite;
}
@keyframes link-travel {
    0%   { left: -10px; opacity: 0; }
    20%  { opacity: 1; }
    80%  { opacity: 1; }
    100% { left: calc(100% - 6px); opacity: 0; }
}

/* ---------- Timing badge ---------- */
.timing-bar {
    display: flex; align-items: center; gap: 16px;
    margin-top: 14px;
    margin-bottom: 14px;
    padding: 8px 14px;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--dim);
}
.timing-bar .t-item { display: flex; align-items: center; gap: 6px; }
.timing-bar .t-label { color: var(--dim); }
.timing-bar .t-val { color: var(--accent); font-weight: 600; }
.timing-bar .t-sep { color: var(--border-strong); }

/* ---------- No-face message ---------- */
.no-face-msg {
    display: flex; align-items: center; gap: 10px;
    padding: 16px 18px;
    border-radius: 10px;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: #fca5a5;
    font-size: 0.9rem;
}
.no-face-msg svg { flex-shrink: 0; opacity: 0.8; }

/* ---------- Footer ---------- */
.footer {
    text-align: center;
    color: var(--dim);
    font-size: 0.78rem;
    padding: 24px;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.05em;
}
.footer a { color: var(--accent); text-decoration: none; }
.footer a:hover { text-decoration: underline; }