/* ==========================================================================
   IMG — Luxury Smoked Optical Frosted Glass & True HDR P3 Engine
   Inspired by Leica / Apple Pro Display XDR / Dark Machined Acrylic Glass
   ========================================================================== */

:root {
    /* Deep Obsidian & Smoked Optical Glass Surface Tokens */
    --bg-base: #07080b;
    --glass-bg: rgba(24, 27, 35, 0.56);
    --glass-bg-strong: rgba(20, 23, 30, 0.72);
    --glass-bg-hover: rgba(36, 40, 52, 0.72);
    --glass-dark: rgba(12, 14, 19, 0.86);

    /* Specular Rim & Optical Borders (Crisp 1px Machined Edges) */
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-border-strong: rgba(255, 255, 255, 0.22);
    --glass-specular-top: rgba(255, 255, 255, 0.30);
    --glass-inner-glow: inset 0 1px 0 0 rgba(255, 255, 255, 0.20), inset 0 0 0 1px rgba(255, 255, 255, 0.04);

    /* Multi-layer Optical Shadows */
    --glass-shadow-sm: 0 8px 24px -6px rgba(0, 0, 0, 0.56), 0 2px 6px rgba(0, 0, 0, 0.36);
    --glass-shadow-md: 0 18px 46px -10px rgba(0, 0, 0, 0.72), 0 4px 14px rgba(0, 0, 0, 0.48);
    --glass-shadow-lg: 0 32px 88px -12px rgba(0, 0, 0, 0.88), 0 8px 28px rgba(0, 0, 0, 0.62);

    /* Heavy Frosted Blur Strength */
    --blur-md: blur(36px) saturate(200%) contrast(103%);
    --blur-lg: blur(52px) saturate(215%) contrast(105%);
    --blur-xl: blur(68px) saturate(225%) contrast(106%);

    /* Typography & Platinum Accents */
    --ink: rgba(255, 255, 255, 0.95);
    --ink-2: rgba(255, 255, 255, 0.68);
    --ink-3: rgba(255, 255, 255, 0.44);
    --ink-4: rgba(255, 255, 255, 0.26);

    --accent-platinum: #ffffff;
    --accent-silver: #d8dee9;
    --accent-hdr: #f8fafc;
    --brand-blue: #e2e8f0;
    --danger: #ff5b63;
    --ok: #34d399;

    /* Crisp Machined Rectangular Glass Corners */
    --r-xs: 3px;
    --r-sm: 4px;
    --r-md: 5px;
    --r-lg: 6px;
    --r-xl: 8px;

    /* Fonts */
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", sans-serif;
    --font-mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

    /* Motion */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Wide-Gamut Display-P3 & High Dynamic Range Super-White Overrides */
@supports (color: color(display-p3 1 1 1)) {
    :root {
        --accent-platinum: color(display-p3 1 1 1);
        --accent-hdr: color(display-p3 0.98 0.99 1);
        --glass-specular-top: color(display-p3 1 1 1 / 0.34);
        --danger: color(display-p3 1 0.32 0.36);
        --ok: color(display-p3 0.22 0.88 0.62);
    }
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    min-height: 100%;
    background: var(--bg-base);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    color-scheme: dark;
}

body.locked {
    overflow: hidden;
}

/* True HDR Image Headroom Unclamping */
body.hdr-enabled img {
    dynamic-range-limit: no-limit;
}

@media (dynamic-range: high) {
    body.hdr-enabled .photo-thumb-wrap img,
    body.hdr-enabled .viewer-img {
        dynamic-range-limit: no-limit;
        filter: contrast(1.03) saturate(1.04);
    }
    body.hdr-enabled .hdr-pill.active,
    body.hdr-enabled .viewer-hdr-badge {
        box-shadow: 0 0 18px color(display-p3 1 1 1 / 0.26), inset 0 1px 0 color(display-p3 1 1 1 / 0.55);
    }
}

button, input, select {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

button {
    cursor: pointer;
    user-select: none;
}

a {
    color: inherit;
    text-decoration: none;
}

[hidden] {
    display: none !important;
}

/* ==========================================================================
   0. Ambient Optical Darkroom Canvas & Micro-Grain (For Heavy Frosted Blur)
   ========================================================================== */
.ambient-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    background:
        radial-gradient(circle at 50% -10%, rgba(56, 66, 88, 0.36) 0%, transparent 62%),
        radial-gradient(circle at 86% 22%, rgba(72, 82, 104, 0.22) 0%, transparent 54%),
        radial-gradient(circle at 14% 82%, rgba(62, 54, 72, 0.22) 0%, transparent 58%),
        linear-gradient(180deg, #0a0c11 0%, #050608 100%);
}

.ambient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    opacity: 0.45;
    will-change: transform;
    animation: orbDrift 24s ease-in-out infinite alternate;
}

.orb-1 {
    width: 50vw;
    height: 50vw;
    max-width: 720px;
    max-height: 720px;
    top: -14%;
    left: -8%;
    background: radial-gradient(circle, rgba(155, 175, 210, 0.28) 0%, rgba(70, 85, 115, 0.08) 65%, transparent 100%);
}

.orb-2 {
    width: 44vw;
    height: 44vw;
    max-width: 640px;
    max-height: 640px;
    bottom: -12%;
    right: -6%;
    background: radial-gradient(circle, rgba(190, 175, 158, 0.20) 0%, rgba(95, 85, 78, 0.06) 65%, transparent 100%);
    animation-delay: -9s;
}

.orb-3 {
    width: 36vw;
    height: 36vw;
    max-width: 520px;
    max-height: 520px;
    top: 34%;
    left: 36%;
    background: radial-gradient(circle, rgba(135, 150, 180, 0.18) 0%, transparent 70%);
    animation-delay: -15s;
}

.glass-noise {
    position: absolute;
    inset: 0;
    opacity: 0.032;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 160px 160px;
}

@keyframes orbDrift {
    0% { transform: translate3d(0, 0, 0) scale(1); }
    50% { transform: translate3d(3%, 4%, 0) scale(1.06); }
    100% { transform: translate3d(-2%, -3%, 0) scale(0.96); }
}

/* ==========================================================================
   0-A. Optical Frosted Glass Preloader (#site-loader)
   ========================================================================== */
.site-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 7, 10, 0.80);
    backdrop-filter: var(--blur-xl);
    -webkit-backdrop-filter: var(--blur-xl);
    transition: opacity 0.42s var(--ease-out), visibility 0.42s var(--ease-out);
}

.site-loader.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-acrylic-box {
    position: relative;
    width: 244px;
    padding: 26px 24px 22px;
    border-radius: var(--r-lg);
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border-strong);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-lg), var(--glass-inner-glow);
    overflow: hidden;
}

.loader-shimmer {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        115deg,
        transparent 20%,
        rgba(255, 255, 255, 0.06) 46%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.06) 54%,
        transparent 80%
    );
    transform: translateX(-110%);
    animation: specularSweep 2.2s var(--ease-out) infinite;
    pointer-events: none;
}

@keyframes specularSweep {
    0% { transform: translateX(-110%); }
    100% { transform: translateX(110%); }
}

.loader-head-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}

.loader-logo-rect {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.24em;
    color: var(--accent-platinum);
}

.loader-hdr-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.14em;
    padding: 2px 6px;
    border-radius: var(--r-xs);
    color: var(--ink-2);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.16);
}

.loader-bar-wrap {
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.loader-bar-fill {
    width: 35%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.25), var(--accent-platinum));
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.6);
    transition: width 0.28s var(--ease-out);
}

/* ==========================================================================
   0-B. Deep Frosted Glass Vault (#lock-screen)
   ========================================================================== */
.lock-screen {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(6, 7, 10, 0.58);
    backdrop-filter: var(--blur-xl);
    -webkit-backdrop-filter: var(--blur-xl);
    transition: opacity 0.38s var(--ease-out), visibility 0.38s var(--ease-out), transform 0.38s var(--ease-out);
}

.lock-screen.unlocked {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: scale(1.025);
}

.lock-glass-card {
    position: relative;
    width: 100%;
    max-width: 360px;
    padding: 36px 28px 28px;
    border-radius: var(--r-lg);
    background: linear-gradient(165deg, rgba(34, 38, 50, 0.66) 0%, rgba(15, 17, 23, 0.80) 100%);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border-strong);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-lg), var(--glass-inner-glow);
    overflow: hidden;
}

/* Rectangular IMG Optical Monolith */
.lock-emblem-stage {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 26px;
}

.lock-ripple-rect {
    position: absolute;
    top: 0;
    width: 124px;
    height: 46px;
    border-radius: var(--r-sm);
    border: 1px solid rgba(255, 255, 255, 0.45);
    opacity: 0;
    pointer-events: none;
}

.lock-ripple-rect.ripple-active {
    animation: rectRippleOut 0.52s var(--ease-out) forwards;
}

@keyframes rectRippleOut {
    0% {
        transform: scale(1);
        opacity: 0.65;
    }
    100% {
        transform: scale(1.26, 1.42);
        opacity: 0;
    }
}

.lock-rect-monolith {
    position: relative;
    width: 124px;
    height: 46px;
    border-radius: var(--r-sm);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.11) 0%, rgba(255, 255, 255, 0.03) 100%);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-top-color: rgba(255, 255, 255, 0.44);
    box-shadow:
        0 10px 26px rgba(0, 0, 0, 0.52),
        inset 0 1px 0 rgba(255, 255, 255, 0.26);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: transform 0.18s var(--ease-out), border-color 0.2s ease, box-shadow 0.2s ease;
}

.lock-rect-monolith.has-input {
    border-color: rgba(255, 255, 255, 0.36);
    box-shadow:
        0 12px 30px rgba(0, 0, 0, 0.6),
        0 0 22px rgba(255, 255, 255, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.36);
}

.lock-rect-monolith.typing-bump {
    transform: translateY(-1.5px) scale(1.03);
}

.rect-sheen {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        110deg,
        transparent 25%,
        rgba(255, 255, 255, 0.22) 50%,
        transparent 75%
    );
    transform: translateX(-120%);
    transition: transform 0.5s var(--ease-out);
    pointer-events: none;
}

.lock-rect-monolith.typing-bump .rect-sheen {
    transform: translateX(120%);
}

.rect-logo-text {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.30em;
    padding-left: 0.30em;
    color: var(--accent-platinum);
    text-shadow: 0 0 16px rgba(255, 255, 255, 0.28);
}

.lock-emblem-stage.unlocked-state .lock-rect-monolith {
    border-color: rgba(52, 211, 153, 0.65);
    box-shadow: 0 0 24px rgba(52, 211, 153, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

/* Password Input Box */
.lock-form {
    width: 100%;
}

.lock-input-group {
    position: relative;
    display: flex;
    align-items: center;
    padding: 4px;
    border-radius: var(--r-sm);
    background: rgba(8, 10, 14, 0.62);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-bottom-color: rgba(255, 255, 255, 0.22);
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.55);
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.lock-input-group:focus-within {
    background: rgba(10, 12, 18, 0.78);
    border-color: rgba(255, 255, 255, 0.32);
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.lock-input-group.typing-pulse {
    border-color: rgba(255, 255, 255, 0.46);
}

.input-laser-line {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 1.5px;
    width: 0%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.2), var(--accent-platinum), rgba(255, 255, 255, 0.2));
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.75);
    transition: width 0.22s var(--ease-out);
    pointer-events: none;
}

.lock-input {
    flex: 1;
    min-width: 0;
    height: 36px;
    padding: 0 10px;
    font-size: 14px;
    color: var(--accent-platinum);
    letter-spacing: 0.14em;
}

.lock-input::placeholder {
    letter-spacing: 0.04em;
    color: var(--ink-4);
}

.lock-vis-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--r-xs);
    color: var(--ink-3);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s ease, background 0.15s ease;
}

.lock-vis-btn:hover,
.lock-vis-btn.active {
    color: var(--accent-platinum);
    background: rgba(255, 255, 255, 0.08);
}

.lock-submit {
    position: relative;
    width: 36px;
    height: 34px;
    border-radius: var(--r-xs);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-top-color: rgba(255, 255, 255, 0.36);
    color: var(--accent-platinum);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: background 0.18s ease, border-color 0.18s ease, transform 0.15s ease;
}

.lock-submit:hover {
    background: var(--accent-platinum);
    color: #07080b;
    border-color: var(--accent-platinum);
}

.lock-submit:active {
    transform: scale(0.95);
}

.submit-spinner {
    display: none;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.65s linear infinite;
}

.lock-submit.verifying .submit-arrow {
    display: none;
}

.lock-submit.verifying .submit-spinner {
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.lock-error {
    min-height: 18px;
    margin-top: 10px;
    font-size: 12px;
    color: var(--danger);
    text-align: center;
    font-weight: 500;
}

.lock-error.ok-msg {
    color: var(--ok);
}

.shake {
    animation: lockShake 0.36s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes lockShake {
    10%, 90% { transform: translateX(-4px); }
    20%, 80% { transform: translateX(6px); }
    30%, 50%, 70% { transform: translateX(-8px); }
    40%, 60% { transform: translateX(8px); }
}

/* ==========================================================================
   1. Top Frosted Acrylic Command Bar (.top-glass-header)
   ========================================================================== */
.top-glass-header {
    position: sticky;
    top: 12px;
    z-index: 100;
    padding: 0 20px;
    margin-top: 12px;
}

.glass-dock {
    max-width: 1640px;
    margin: 0 auto;
    min-height: 50px;
    padding: 6px 10px;
    border-radius: var(--r-lg);
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-md), var(--glass-inner-glow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.dock-brand-group {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 34px;
    padding: 0 11px;
    border-radius: var(--r-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-top-color: rgba(255, 255, 255, 0.28);
    transition: background 0.15s ease, border-color 0.15s ease;
}

.brand:hover {
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(255, 255, 255, 0.28);
}

.brand-name {
    font-family: var(--font-mono);
    font-size: 13.5px;
    font-weight: 700;
    letter-spacing: 0.20em;
    color: var(--accent-platinum);
}

.brand-count {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--ink-2);
    background: rgba(255, 255, 255, 0.08);
    padding: 1px 6px;
    border-radius: var(--r-xs);
}

/* Center Category Track */
.dock-categories-group {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 5px;
}

.folder-tabs {
    display: flex;
    align-items: center;
    gap: 5px;
    overflow-x: auto;
    scrollbar-width: none;
    padding: 2px 0;
}

.folder-tabs::-webkit-scrollbar {
    display: none;
}

.tab-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 32px;
    padding: 0 11px;
    border-radius: var(--r-sm);
    font-size: 12.5px;
    font-weight: 500;
    color: var(--ink-2);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
    white-space: nowrap;
    transition: all 0.16s var(--ease-out);
}

.tab-item:hover {
    color: var(--ink);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.16);
}

.tab-item.active {
    background: rgba(255, 255, 255, 0.14);
    color: var(--accent-platinum);
    border-color: rgba(255, 255, 255, 0.28);
    border-top-color: var(--glass-specular-top);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 2px 8px rgba(0, 0, 0, 0.32);
    font-weight: 600;
}

.tab-item.drag-over {
    background: rgba(255, 255, 255, 0.20);
    border-color: var(--accent-platinum);
    color: var(--accent-platinum);
}

.tab-dot {
    width: 6px;
    height: 6px;
    border-radius: 1px;
    background: var(--cat-color, var(--ink-3));
}

.tab-item.active .tab-dot {
    box-shadow: 0 0 6px var(--cat-color, #fff);
}

.tab-count {
    font-family: var(--font-mono);
    font-size: 10.5px;
    opacity: 0.65;
}

.dock-cat-add {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: var(--r-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.10);
    color: var(--ink-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.15s ease;
}

.dock-cat-add:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.28);
    color: var(--accent-platinum);
}

/* Right Tool Matrix */
.dock-tools-group {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.search-wrap {
    position: relative;
    display: flex;
    align-items: center;
    height: 32px;
    width: 148px;
    padding: 0 8px;
    border-radius: var(--r-sm);
    background: rgba(8, 10, 14, 0.52);
    border: 1px solid rgba(255, 255, 255, 0.10);
    transition: width 0.22s var(--ease-out), background 0.15s ease, border-color 0.15s ease;
}

.search-wrap:focus-within {
    width: 196px;
    background: rgba(8, 10, 14, 0.78);
    border-color: rgba(255, 255, 255, 0.28);
}

.search-icon {
    color: var(--ink-3);
    flex-shrink: 0;
}

.search-input {
    width: 100%;
    padding: 0 6px;
    font-size: 12.5px;
    color: var(--ink);
}

.search-input::placeholder {
    color: var(--ink-4);
}

.search-clear-btn {
    font-size: 11px;
    color: var(--ink-3);
    padding: 2px;
}

.search-clear-btn:hover {
    color: var(--accent-platinum);
}

.zoom-scaler {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    height: 32px;
    padding: 0 6px;
    border-radius: var(--r-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.09);
}

.zoom-step-btn {
    width: 20px;
    height: 22px;
    border-radius: var(--r-xs);
    color: var(--ink-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.zoom-step-btn:hover {
    background: rgba(255, 255, 255, 0.10);
    color: var(--accent-platinum);
}

.zoom-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 56px;
    height: 2px;
    background: rgba(255, 255, 255, 0.18);
    cursor: pointer;
}

.zoom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 14px;
    border-radius: 1px;
    background: var(--accent-platinum);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.45);
    cursor: pointer;
}

/* HDR Optical Toggle Pill */
.hdr-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    padding: 0 10px;
    border-radius: var(--r-sm);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--ink-3);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.10);
    transition: all 0.18s var(--ease-out);
}

.hdr-pill:hover {
    color: var(--ink);
    border-color: rgba(255, 255, 255, 0.22);
}

.hdr-pill.active {
    color: var(--accent-hdr);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.06) 100%);
    border-color: rgba(255, 255, 255, 0.34);
    border-top-color: var(--glass-specular-top);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.45);
}

.quota-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 32px;
    padding: 0 10px;
    border-radius: var(--r-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.09);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-2);
    transition: background 0.15s ease, border-color 0.15s ease;
}

.quota-pill:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.22);
}

.quota-mini-track {
    width: 30px;
    height: 4px;
    background: rgba(255, 255, 255, 0.12);
    overflow: hidden;
}

.quota-mini-fill {
    height: 100%;
    width: 2%;
    background: var(--ok);
}

.glass-btn {
    height: 32px;
    padding: 0 12px;
    border-radius: var(--r-sm);
    font-size: 12.5px;
    font-weight: 500;
    color: var(--ink-2);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-top-color: rgba(255, 255, 255, 0.22);
    transition: all 0.16s ease;
}

.glass-btn:hover,
.glass-btn.active {
    color: var(--accent-platinum);
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.28);
}

.glass-btn.primary {
    background: linear-gradient(180deg, #ffffff 0%, #dfe4ec 100%);
    color: #07080b;
    border-color: #ffffff;
    font-weight: 600;
    box-shadow: 0 2px 12px rgba(255, 255, 255, 0.16);
}

.glass-btn.primary:hover {
    background: #ffffff;
    box-shadow: 0 4px 18px rgba(255, 255, 255, 0.28);
}

.glass-icon-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--r-sm);
    color: var(--ink-2);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-top-color: rgba(255, 255, 255, 0.22);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.glass-icon-btn:hover {
    color: var(--accent-platinum);
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.28);
}

/* Upload Progress Ribbon */
.upload-ribbon {
    max-width: 1640px;
    margin: 8px auto 0;
    padding: 8px 14px;
    border-radius: var(--r-md);
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid var(--glass-border-strong);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-sm);
}

.ribbon-track {
    height: 2px;
    background: rgba(255, 255, 255, 0.10);
    overflow: hidden;
    margin-bottom: 6px;
}

.ribbon-bar {
    height: 100%;
    width: 0%;
    background: var(--accent-platinum);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.6);
    transition: width 0.2s ease;
}

.ribbon-info {
    display: flex;
    justify-content: space-between;
    font-size: 11.5px;
    color: var(--ink-2);
}

/* ==========================================================================
   2. Main Gallery: Smoked Optical Glass Cards & Timeline Stream
   ========================================================================== */
.space-main {
    position: relative;
    z-index: 1;
    max-width: 1640px;
    margin: 0 auto;
    padding: 18px 20px 100px;
}

.timeline-stream {
    display: flex;
    flex-direction: column;
    gap: 26px;
}

.timeline-section {
    animation: sectionIn 0.28s var(--ease-out) both;
}

@keyframes sectionIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.timeline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    padding: 0 2px;
}

.timeline-date-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.timeline-dot {
    width: 3px;
    height: 14px;
    background: var(--accent-platinum);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.45);
}

.timeline-date-title {
    font-family: var(--font-mono);
    font-size: 13.5px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.timeline-date-sub {
    font-size: 11.5px;
    color: var(--ink-3);
}

.timeline-meta-right {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--ink-3);
}

.timeline-select-day-btn {
    padding: 2px 8px;
    border-radius: var(--r-xs);
    font-size: 11px;
    color: var(--ink-2);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    transition: all 0.15s ease;
}

.timeline-select-day-btn:hover {
    background: rgba(255, 255, 255, 0.14);
    color: var(--accent-platinum);
    border-color: rgba(255, 255, 255, 0.28);
}

.masonry-board {
    display: grid;
    gap: 12px;
    align-items: start;
}

.masonry-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 0;
}

/* Smoked Optical Frosted Glass Photo Card */
.photo-item {
    position: relative;
    border-radius: var(--r-md);
    background: var(--glass-bg);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    padding: 4px;
    border: 1px solid var(--glass-border);
    border-top-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--glass-shadow-sm), var(--glass-inner-glow);
    transition: transform 0.24s var(--ease-out), box-shadow 0.24s var(--ease-out), border-color 0.22s ease, background 0.22s ease;
    cursor: zoom-in;
}

.photo-item:hover {
    transform: translateY(-2px);
    background: var(--glass-bg-hover);
    border-color: rgba(255, 255, 255, 0.28);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.photo-item.selected {
    border-color: var(--accent-platinum);
    box-shadow: 0 0 0 1.5px var(--accent-platinum), var(--glass-shadow-md);
}

.photo-thumb-wrap {
    position: relative;
    width: 100%;
    border-radius: 2px;
    overflow: hidden;
    background: rgba(8, 10, 14, 0.65);
}

.photo-thumb-wrap img {
    display: block;
    width: 100%;
    height: auto;
    opacity: 0;
    transition: opacity 0.26s ease, transform 0.42s var(--ease-out);
}

.photo-thumb-wrap img.is-loaded {
    opacity: 1;
}

.photo-item:hover .photo-thumb-wrap img.is-loaded {
    transform: scale(1.02);
}

/* Top-Left Selection Check */
.thumb-check {
    position: absolute;
    top: 9px;
    left: 9px;
    z-index: 3;
    width: 22px;
    height: 22px;
    border-radius: var(--r-xs);
    background: rgba(12, 14, 20, 0.68);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.32);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.15s ease, background 0.15s ease;
}

.photo-item:hover .thumb-check,
body.batch-active .thumb-check,
.photo-item.selected .thumb-check {
    opacity: 1;
}

.photo-item.selected .thumb-check {
    background: var(--accent-platinum);
    color: #07080b;
    border-color: var(--accent-platinum);
}

/* Bottom Embedded Frosted Glass Bar inside Photo Card */
.photo-glass-bar {
    position: absolute;
    left: 8px;
    right: 8px;
    bottom: 8px;
    z-index: 3;
    height: 28px;
    padding: 0 8px;
    border-radius: var(--r-sm);
    background: rgba(14, 16, 22, 0.72);
    backdrop-filter: blur(20px) saturate(190%);
    -webkit-backdrop-filter: blur(20px) saturate(190%);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-top-color: rgba(255, 255, 255, 0.28);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    opacity: 0;
    transform: translateY(3px);
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.photo-item:hover .photo-glass-bar {
    opacity: 1;
    transform: translateY(0);
}

.cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.92);
    padding: 2px 5px;
    border-radius: var(--r-xs);
    transition: background 0.15s ease;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cat-badge:hover {
    background: rgba(255, 255, 255, 0.14);
}

.cat-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 1px;
    background: var(--cat-color, var(--accent-platinum));
    flex-shrink: 0;
}

.thumb-copy-btn {
    font-size: 11px;
    font-weight: 600;
    color: var(--ink);
    padding: 2px 7px;
    border-radius: var(--r-xs);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.14);
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.thumb-copy-btn:hover {
    background: var(--accent-platinum);
    color: #07080b;
    border-color: var(--accent-platinum);
}

.thumb-copy-btn.copied {
    background: var(--ok);
    color: #051b11;
    border-color: var(--ok);
}

.thumb-retry-overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(12, 14, 20, 0.76);
    backdrop-filter: blur(10px);
    font-size: 11.5px;
    color: var(--ink-2);
}

body.zoom-dense .masonry-board,
body.zoom-dense .masonry-column {
    gap: 8px;
}

body.zoom-dense .photo-glass-bar {
    display: none;
}

/* Skeletons & Empty Stage */
.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.skeleton-card {
    border-radius: var(--r-md);
    background: linear-gradient(90deg, rgba(255,255,255,0.03) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.03) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.4s infinite;
    border: 1px solid var(--glass-border);
}

@keyframes shimmer {
    to { background-position: -200% 0; }
}

.empty-stage {
    padding: 72px 20px;
    display: flex;
    justify-content: center;
}

.empty-glass-box {
    width: 100%;
    max-width: 340px;
    padding: 42px 24px;
    border-radius: var(--r-lg);
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px dashed rgba(255, 255, 255, 0.22);
    box-shadow: var(--glass-shadow-md), var(--glass-inner-glow);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.18s ease;
}

.empty-glass-box:hover {
    background: var(--glass-bg-hover);
    border-style: solid;
    border-color: rgba(255, 255, 255, 0.38);
}

.empty-plus {
    font-size: 26px;
    font-weight: 300;
    color: var(--ink-2);
}

.empty-title {
    font-size: 12.5px;
    color: var(--ink-3);
}

/* Drag & Drop Frosted Overlay */
.drop-overlay {
    position: fixed;
    inset: 0;
    z-index: 950;
    background: rgba(6, 7, 10, 0.72);
    backdrop-filter: var(--blur-xl);
    -webkit-backdrop-filter: var(--blur-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.drop-overlay.active {
    opacity: 1;
    visibility: visible;
}

.drop-glass-card {
    padding: 36px 56px;
    border-radius: var(--r-lg);
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-specular-top);
    box-shadow: var(--glass-shadow-lg), var(--glass-inner-glow);
    text-align: center;
}

.drop-plus {
    font-size: 32px;
    color: var(--accent-platinum);
}

.drop-title {
    margin-top: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
}

/* Quick Category Popover */
.quick-cat-popover {
    position: fixed;
    z-index: 500;
    width: 184px;
    padding: 5px;
    border-radius: var(--r-md);
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border-strong);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-lg), var(--glass-inner-glow);
}

.popover-list {
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.popover-cat-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px;
    border-radius: var(--r-xs);
    font-size: 12px;
    color: var(--ink-2);
}

.popover-cat-item:hover,
.popover-cat-item.current {
    background: rgba(255, 255, 255, 0.10);
    color: var(--accent-platinum);
    font-weight: 600;
}

.popover-cat-left {
    display: flex;
    align-items: center;
    gap: 7px;
}

.popover-new-btn {
    width: 100%;
    margin-top: 4px;
    padding: 6px 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.10);
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-platinum);
    text-align: left;
}

/* ==========================================================================
   3. Bottom Floating Batch Bar (.selection-dock)
   ========================================================================== */
.selection-dock {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 300;
    padding: 6px 12px;
    border-radius: var(--r-lg);
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border-strong);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-lg), var(--glass-inner-glow);
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 10px;
}

.dock-left, .dock-center {
    display: flex;
    align-items: center;
    gap: 6px;
}

.sel-count {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    padding: 0 4px;
    color: var(--accent-platinum);
}

.dock-link {
    font-size: 12px;
    color: var(--ink-2);
    padding: 4px 6px;
    border-radius: var(--r-xs);
}

.dock-link:hover {
    color: var(--accent-platinum);
    background: rgba(255, 255, 255, 0.10);
}

.sel-sep {
    width: 1px;
    height: 16px;
    background: rgba(255, 255, 255, 0.16);
}

.dock-select {
    height: 28px;
    padding: 0 8px;
    border-radius: var(--r-xs);
    background: rgba(8, 10, 14, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: var(--ink);
    font-size: 12px;
}

.dock-select option {
    color: #fff;
    background: #12151c;
}

.dock-action {
    height: 28px;
    padding: 0 10px;
    border-radius: var(--r-xs);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 12px;
    color: var(--ink);
    transition: all 0.15s ease;
}

.dock-action:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.28);
}

.dock-action.danger {
    background: rgba(255, 91, 99, 0.18);
    border-color: rgba(255, 91, 99, 0.35);
    color: #ff8a90;
}

.dock-action.danger:hover {
    background: var(--danger);
    color: #fff;
}

.dock-close {
    width: 26px;
    height: 26px;
    border-radius: var(--r-xs);
    color: var(--ink-2);
}

/* ==========================================================================
   4. HDR Optical Glass Lightbox Viewer & Modals
   ========================================================================== */
.viewer-backdrop,
.settings-backdrop {
    position: fixed;
    inset: 0;
    z-index: 800;
    background: rgba(4, 5, 8, 0.76);
    backdrop-filter: var(--blur-xl);
    -webkit-backdrop-filter: var(--blur-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s var(--ease-out), visibility 0.22s var(--ease-out);
}

.viewer-backdrop.open,
.settings-backdrop.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.viewer-layout {
    width: 100%;
    max-width: 1400px;
    height: min(88vh, 900px);
    border-radius: var(--r-lg);
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-xl);
    -webkit-backdrop-filter: var(--blur-xl);
    border: 1px solid var(--glass-border-strong);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-lg), var(--glass-inner-glow);
    display: grid;
    grid-template-columns: 1fr 320px;
    overflow: hidden;
}

.viewer-stage {
    position: relative;
    background: rgba(5, 6, 9, 0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px;
    overflow: hidden;
}

/* Real-time Optical Ambilight Bleed Behind Active Photo */
.viewer-ambilight {
    position: absolute;
    width: 82%;
    height: 82%;
    object-fit: cover;
    filter: blur(95px) saturate(220%) brightness(0.78);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.55s ease;
    z-index: 0;
}

body.hdr-enabled .viewer-ambilight.is-active {
    opacity: 0.45;
}

.viewer-img {
    position: relative;
    z-index: 1;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--r-xs);
    box-shadow: 0 24px 72px rgba(0, 0, 0, 0.82);
}

.viewer-top-badges {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 4;
    display: flex;
    align-items: center;
    gap: 8px;
}

.viewer-hdr-badge {
    padding: 4px 9px;
    border-radius: var(--r-xs);
    font-family: var(--font-mono);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent-hdr);
    background: rgba(14, 16, 22, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-top-color: var(--glass-specular-top);
    display: none;
}

body.hdr-enabled .viewer-hdr-badge {
    display: inline-flex;
}

.hd-badge-btn {
    padding: 4px 10px;
    border-radius: var(--r-xs);
    background: rgba(14, 16, 22, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    color: var(--ink);
    font-size: 11.5px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    transition: all 0.15s ease;
}

.hd-badge-btn:hover {
    background: var(--accent-platinum);
    color: #07080b;
    border-color: var(--accent-platinum);
}

.nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    width: 38px;
    height: 46px;
    border-radius: var(--r-sm);
    background: rgba(18, 20, 28, 0.65);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-top-color: rgba(255, 255, 255, 0.28);
    box-shadow: var(--glass-shadow-sm);
    font-size: 22px;
    color: var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.nav-arrow:hover {
    background: rgba(38, 42, 54, 0.85);
    border-color: rgba(255, 255, 255, 0.34);
    color: var(--accent-platinum);
}

.nav-arrow.prev { left: 16px; }
.nav-arrow.next { right: 16px; }

.mobile-viewer-close {
    display: none;
}

.viewer-sidebar {
    background: rgba(16, 18, 25, 0.78);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border-left: 1px solid rgba(255, 255, 255, 0.12);
    padding: 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow-y: auto;
}

.file-header {
    display: flex;
    align-items: center;
    gap: 8px;
}

.title-input {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    padding: 5px 8px;
    border-radius: var(--r-xs);
    background: rgba(8, 10, 14, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--ink);
}

.title-input:focus {
    border-color: rgba(255, 255, 255, 0.32);
}

.viewer-close {
    width: 28px;
    height: 28px;
    border-radius: var(--r-xs);
    color: var(--ink-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.viewer-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--accent-platinum);
}

.file-quick-stats {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 10px 0 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-3);
}

.field-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--ink-3);
    margin-bottom: 6px;
}

.meta-row-field,
.links-block,
.exif-block {
    margin-bottom: 16px;
}

.folder-edit-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.folder-color-preview,
.cat-selected-color-dot {
    width: 10px;
    height: 10px;
    border-radius: 1px;
    background: var(--accent-platinum);
    flex-shrink: 0;
}

.minimal-input {
    width: 100%;
    height: 32px;
    padding: 0 10px;
    border-radius: var(--r-xs);
    background: rgba(8, 10, 14, 0.58);
    border: 1px solid rgba(255, 255, 255, 0.14);
    font-size: 12.5px;
    color: var(--ink);
}

.minimal-input:focus {
    background: rgba(8, 10, 14, 0.82);
    border-color: rgba(255, 255, 255, 0.34);
}

.minimal-input option {
    background: #12151c;
    color: #fff;
}

.minimal-save-btn {
    height: 32px;
    padding: 0 12px;
    border-radius: var(--r-xs);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-top-color: rgba(255, 255, 255, 0.34);
    color: var(--accent-platinum);
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.15s ease;
}

.minimal-save-btn:hover {
    background: var(--accent-platinum);
    color: #07080b;
    border-color: var(--accent-platinum);
}

.viewer-cat-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 8px;
}

.viewer-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 8px;
    border-radius: var(--r-xs);
    font-size: 11px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.10);
    color: var(--ink-2);
}

.viewer-chip.active {
    background: rgba(255, 255, 255, 0.18);
    color: var(--accent-platinum);
    border-color: rgba(255, 255, 255, 0.34);
}

.copy-line {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    margin-bottom: 5px;
    border-radius: var(--r-xs);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.09);
    text-align: left;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.copy-line:hover {
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(255, 255, 255, 0.26);
}

.copy-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 700;
    color: var(--ink-2);
    width: 36px;
    flex-shrink: 0;
}

.copy-val {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-3);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.exif-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.exif-pair {
    padding: 6px 8px;
    border-radius: var(--r-xs);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.exif-k {
    display: block;
    font-size: 10px;
    color: var(--ink-3);
}

.exif-v {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--ink);
}

.sidebar-bottom,
.settings-foot {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.10);
}

.bottom-action {
    height: 34px;
    border-radius: var(--r-xs);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    font-size: 12.5px;
    font-weight: 600;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.bottom-action:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.28);
}

.bottom-action.primary {
    background: linear-gradient(180deg, #ffffff 0%, #dfe4ec 100%);
    color: #07080b;
    border-color: #ffffff;
}

.bottom-action.primary:hover {
    background: #ffffff;
}

.bottom-action.danger {
    color: var(--danger);
    border-color: rgba(255, 91, 99, 0.28);
    background: rgba(255, 91, 99, 0.08);
}

.bottom-action.danger:hover {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

/* ==========================================================================
   5. Settings & Category Frosted Acrylic Cards (.settings-card)
   ========================================================================== */
.settings-card {
    position: relative;
    width: 100%;
    max-width: 420px;
    padding: 22px;
    border-radius: var(--r-lg);
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-xl);
    -webkit-backdrop-filter: var(--blur-xl);
    border: 1px solid var(--glass-border-strong);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-lg), var(--glass-inner-glow);
    overflow: hidden;
}

.settings-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.settings-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-platinum);
}

.storage-meter-box {
    padding: 12px;
    margin-bottom: 12px;
    border-radius: var(--r-sm);
    background: rgba(8, 10, 14, 0.48);
    border: 1px solid rgba(255, 255, 255, 0.10);
}

.meter-header,
.meter-stats-row {
    display: flex;
    justify-content: space-between;
    font-size: 11.5px;
    color: var(--ink-2);
}

.meter-pct {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--accent-platinum);
}

.meter-bar-multi {
    height: 6px;
    margin: 8px 0;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    overflow: hidden;
}

.meter-seg {
    height: 100%;
}

.meter-cat-breakdown {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
    font-size: 11px;
    color: var(--ink-3);
}

.breakdown-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.breakdown-dot {
    width: 6px;
    height: 6px;
    border-radius: 1px;
}

.china-accel-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}

.meter-label-strong {
    font-size: 12px;
    font-weight: 600;
    color: var(--ink);
}

.china-accel-desc {
    font-size: 11px;
    color: var(--ink-3);
}

.settings-field {
    margin-bottom: 12px;
}

.cat-create-box {
    padding: 10px;
    border-radius: var(--r-sm);
    background: rgba(8, 10, 14, 0.48);
    border: 1px solid rgba(255, 255, 255, 0.10);
    margin-bottom: 12px;
}

.cat-create-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cat-palette-row {
    display: flex;
    gap: 6px;
    margin-top: 8px;
}

.cat-swatch {
    width: 18px;
    height: 18px;
    border-radius: var(--r-xs);
    border: 2px solid transparent;
    transition: transform 0.15s ease;
}

.cat-swatch.active {
    transform: scale(1.15);
    border-color: var(--accent-platinum);
}

.cat-manage-list {
    max-height: 240px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.cat-manage-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 10px;
    border-radius: var(--r-xs);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.cat-row-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cat-row-color-btn {
    width: 12px;
    height: 12px;
    border-radius: 1px;
}

.cat-row-name {
    font-size: 12.5px;
    font-weight: 600;
}

.cat-row-count {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-3);
}

.cat-row-actions {
    display: flex;
    gap: 4px;
}

.cat-mini-btn {
    padding: 3px 7px;
    border-radius: var(--r-xs);
    font-size: 11px;
    color: var(--ink-2);
    background: rgba(255, 255, 255, 0.06);
}

.cat-mini-btn:hover {
    background: var(--accent-platinum);
    color: #07080b;
}

.cat-mini-btn.danger {
    color: var(--danger);
}

.cat-mini-btn.danger:hover {
    background: var(--danger);
    color: #fff;
}

/* Toast */
.toast-box {
    position: fixed;
    top: 68px;
    right: 20px;
    z-index: 2100;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.toast {
    padding: 8px 14px;
    border-radius: var(--r-sm);
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    color: var(--ink);
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--glass-border-strong);
    border-top-color: var(--glass-specular-top);
    box-shadow: var(--glass-shadow-md);
}

/* Mobile Bottom Frosted Bar */
.mobile-bottom-bar {
    display: none;
}

@media (max-width: 820px) {
    .top-glass-header {
        top: 6px;
        padding: 0 10px;
    }

    .zoom-scaler,
    .quota-pill,
    #btn-batch-toggle,
    #btn-upload,
    #btn-settings {
        display: none;
    }

    .search-wrap {
        width: 105px;
    }

    .search-wrap:focus-within {
        width: 135px;
    }

    .space-main {
        padding: 12px 10px 96px;
    }

    .viewer-layout {
        grid-template-columns: 1fr;
        height: 92vh;
    }

    .mobile-viewer-close {
        display: flex;
        position: absolute;
        top: 12px;
        right: 12px;
        z-index: 5;
        width: 32px;
        height: 32px;
        border-radius: var(--r-xs);
        background: var(--glass-dark);
        border: 1px solid var(--glass-border-strong);
        color: #fff;
        align-items: center;
        justify-content: center;
    }

    .mobile-bottom-bar {
        position: fixed;
        bottom: 10px;
        left: 10px;
        right: 10px;
        z-index: 250;
        height: 48px;
        padding: 0 10px;
        border-radius: var(--r-lg);
        background: var(--glass-bg-strong);
        backdrop-filter: var(--blur-lg);
        -webkit-backdrop-filter: var(--blur-lg);
        border: 1px solid var(--glass-border-strong);
        border-top-color: var(--glass-specular-top);
        box-shadow: var(--glass-shadow-lg), var(--glass-inner-glow);
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .mob-zoom-group,
    .mob-right-group {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .mob-zoom-btn,
    .mob-tool-btn {
        height: 30px;
        padding: 0 8px;
        border-radius: var(--r-xs);
        font-size: 12px;
        color: var(--ink-2);
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mob-zoom-label {
        font-family: var(--font-mono);
        font-size: 11px;
        padding: 0 4px;
    }

    .mob-upload-fab {
        height: 32px;
        padding: 0 14px;
        border-radius: var(--r-xs);
        background: var(--accent-platinum);
        color: #07080b;
        font-size: 12px;
        font-weight: 600;
    }
}