/* ========================================
   COENRAD.COM — Glassmorphism + Art Direction
   ======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-bg-hover: rgba(255, 255, 255, 0.16);
    --glass-border: rgba(255, 255, 255, 0.22);
    --glass-border-subtle: rgba(255, 255, 255, 0.1);
    --glass-highlight: rgba(255, 255, 255, 0.35);
    --glass-shadow: rgba(0, 0, 0, 0.12);
    --blur: 40px;
    --blur-light: 24px;
    --radius: 24px;
    --radius-sm: 14px;
    --radius-xs: 8px;
    --text-primary: rgba(255, 255, 255, 0.9);
    --text-secondary: rgba(255, 255, 255, 0.55);
    --text-tertiary: rgba(255, 255, 255, 0.3);
    --section-gap: 16px;
    --side-padding: 60px;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: #3a3a36;
    color: var(--text-primary);
    font-size: 13px;
    line-height: 1.5;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========================================
   Background — gradient blobs
   ======================================== */

.bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
}

.bg-blob-1 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(160, 145, 120, 0.5) 0%, transparent 70%);
    top: -15%;
    left: -10%;
    animation: drift1 28s ease-in-out infinite;
}

.bg-blob-2 {
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, rgba(120, 140, 155, 0.4) 0%, transparent 70%);
    top: 35%;
    right: -12%;
    animation: drift2 32s ease-in-out infinite;
}

.bg-blob-3 {
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(150, 135, 115, 0.45) 0%, transparent 70%);
    bottom: -10%;
    left: 25%;
    animation: drift3 24s ease-in-out infinite;
}

.bg-blob-4 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(130, 150, 140, 0.3) 0%, transparent 70%);
    top: 60%;
    left: -5%;
    animation: drift1 35s ease-in-out infinite reverse;
}

@keyframes drift1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes drift2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-35px, 25px) scale(0.96); }
    66% { transform: translate(25px, -15px) scale(1.04); }
}

@keyframes drift3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -25px) scale(1.06); }
}

/* ========================================
   Noise overlay
   ======================================== */

.noise {
    position: fixed;
    inset: 0;
    z-index: 9990;
    pointer-events: none;
    opacity: 0.03;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-size: 200px 200px;
}

/* ========================================
   Header — sticky glass bar
   ======================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 14px var(--side-padding);
    background: rgba(58, 58, 54, 0.5);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border-bottom: 1px solid var(--glass-border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 10px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    transition: color 0.3s;
}

.site-title:hover {
    color: var(--text-primary);
}

.back-link {
    font-size: 10px;
    font-weight: 300;
    color: var(--text-tertiary);
    text-decoration: none;
    letter-spacing: 0.04em;
    transition: color 0.3s;
}

.back-link:hover {
    color: var(--text-primary);
}

/* ========================================
   Main Content
   ======================================== */

.main-content {
    position: relative;
    z-index: 1;
    padding: 20px var(--side-padding);
    display: flex;
    flex-direction: column;
    gap: var(--section-gap);
}

.demo-page {
    position: relative;
    z-index: 1;
    padding: 0;
}

.demo-page .gallery,
.demo-page .three-burst-section,
.demo-page .catalogue,
.demo-page .hscroll-section {
    margin: 0;
}

/* ========================================
   Section Title + Decorative Index
   ======================================== */

.section-title {
    font-size: 9px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--text-tertiary);
    margin-bottom: 28px;
}

.section-index {
    display: block;
    font-size: 140px;
    font-weight: 100;
    line-height: 0.85;
    color: rgba(255, 255, 255, 0.04);
    letter-spacing: -0.04em;
    margin-bottom: -20px;
    user-select: none;
    pointer-events: none;
}

/* ========================================
   Glass Panel (shared)
   ======================================== */

.demo-section,
.persona-section,
.characters,
.items-section,
.text-section {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur)) saturate(1.2);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(1.2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 40px;
    margin: 0;
    position: relative;
    overflow: hidden;
    box-shadow:
        0 8px 32px var(--glass-shadow),
        inset 0 1px 0 var(--glass-highlight);
}

/* ========================================
   Intro
   ======================================== */

.intro {
    padding: 28px 0 8px;
    max-width: 580px;
}

.intro p {
    font-size: 12px;
    font-weight: 300;
    line-height: 1.9;
    color: var(--text-secondary);
}

/* ========================================
   1. DEMONSTRATION
   ======================================== */

.demo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 14px;
}

.demo-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    transition: transform 0.3s ease;
}

.demo-block:hover {
    transform: translateY(-3px);
}

.demo-block:hover .demo-thumb {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.demo-thumb {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    overflow: hidden;
}

.demo-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.demo-block:hover .demo-thumb img {
    opacity: 0.85;
}

.demo-icon {
    font-size: 22px;
    opacity: 0.15;
}

.demo-label {
    font-size: 9px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
}

.demo-block-empty {
    opacity: 0.2;
    cursor: default;
}

.demo-block-empty:hover {
    transform: none;
}

.demo-block-empty:hover .demo-thumb {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--glass-border-subtle);
    box-shadow: none;
}

/* ========================================
   2. PERSONA
   ======================================== */

.persona-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.persona-card {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: 28px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.persona-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    background-size: cover;
    background-position: center;
    opacity: 0.12;
    transition: opacity 0.4s;
}

.persona-card:hover::before {
    opacity: 0.2;
}

.persona-card:nth-child(1)::before {
    background-image: url('https://picsum.photos/seed/p01grid/600/300');
}

.persona-card:nth-child(2)::before {
    background-image: url('https://picsum.photos/seed/p02mech/600/300');
}

.persona-card:nth-child(3)::before {
    background-image: url('https://picsum.photos/seed/p03tex/600/300');
}

.persona-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.persona-id {
    font-size: 56px;
    font-weight: 100;
    line-height: 1;
    color: rgba(255, 255, 255, 0.08);
    margin-bottom: 20px;
    position: relative;
}

.persona-name {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    margin-bottom: 14px;
    position: relative;
}

.persona-engine {
    font-size: 9px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    margin-bottom: 3px;
    position: relative;
}

.persona-medium {
    font-size: 9px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
    margin-bottom: 18px;
    position: relative;
}

.persona-desc {
    font-size: 11px;
    font-weight: 300;
    line-height: 1.7;
    color: var(--text-secondary);
    position: relative;
}

/* ========================================
   3. CHARACTERS
   ======================================== */

.characters-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.characters-grid {
    display: flex;
    gap: 12px;
}

.character-item {
    flex: 1;
    transition: transform 0.3s ease;
}

.character-item:hover {
    transform: translateY(-3px);
}

.character-image {
    width: 100%;
    aspect-ratio: 3 / 5;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all 0.3s ease;
}

.character-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.7;
    transition: opacity 0.4s;
}

.character-item:hover .character-image {
    border-color: var(--glass-border);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
}

.character-item:hover .character-image img {
    opacity: 0.9;
}

/* ========================================
   4. ITEMS
   ======================================== */

.items-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px 14px;
}

.item-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: transform 0.3s;
}

.item-card:hover {
    transform: translateY(-2px);
}

.item-number {
    font-size: 9px;
    font-weight: 400;
    color: var(--text-tertiary);
    letter-spacing: 0.04em;
}

.item-image {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-xs);
    overflow: hidden;
    transition: all 0.3s ease;
}

.item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0.7;
    transition: opacity 0.4s;
}

.item-card:hover .item-image {
    border-color: var(--glass-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.item-card:hover .item-image img {
    opacity: 0.9;
}

/* ========================================
   5. TEXT
   ======================================== */

.text-list {
    display: flex;
    flex-direction: column;
}

.text-entry {
    padding: 24px 0;
    border-top: 1px solid var(--glass-border-subtle);
}

.text-entry:last-child {
    padding-bottom: 0;
}

.text-date {
    display: block;
    font-size: 9px;
    font-weight: 400;
    color: var(--text-tertiary);
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.text-heading {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.text-excerpt {
    font-size: 11px;
    font-weight: 300;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 10px;
}

.text-read-more {
    font-size: 9px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-decoration: none;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: color 0.2s;
}

.text-read-more:hover {
    color: var(--text-primary);
}

/* ========================================
   Immersive Demo Page
   ======================================== */

.demo-immersive {
    position: relative;
    z-index: 1;
    min-height: 100vh;
}

.demo-back {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 200;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: all 0.3s;
}

.demo-back:hover {
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    transform: scale(1.1);
}

/* ========================================
   Sub-page — Gallery Layout
   ======================================== */

.subpage {
    position: relative;
    z-index: 1;
    padding: 24px var(--side-padding);
}

.subpage-hero {
    margin-bottom: 40px;
}

.subpage-hero-title {
    font-size: 64px;
    font-weight: 100;
    line-height: 1;
    color: rgba(255, 255, 255, 0.08);
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.subpage-hero-subtitle {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-secondary);
    max-width: 480px;
    line-height: 1.7;
}

.subpage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.subpage-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-light));
    -webkit-backdrop-filter: blur(var(--blur-light));
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all 0.3s;
}

.subpage-card:hover {
    border-color: var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    transform: translateY(-3px);
}

.subpage-card img {
    width: 100%;
    display: block;
    opacity: 0.75;
    transition: opacity 0.4s;
}

.subpage-card:hover img {
    opacity: 0.95;
}

.subpage-card-info {
    padding: 14px 16px;
}

.subpage-card-title {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.subpage-card-meta {
    font-size: 9px;
    font-weight: 300;
    color: var(--text-tertiary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Items sub-page: masonry-like */
.items-subgrid {
    columns: 4;
    column-gap: 16px;
}

.items-subcard {
    break-inside: avoid;
    margin-bottom: 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-light));
    -webkit-backdrop-filter: blur(var(--blur-light));
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all 0.3s;
}

.items-subcard:hover {
    border-color: var(--glass-border);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
}

.items-subcard img {
    width: 100%;
    display: block;
    opacity: 0.75;
    transition: opacity 0.4s;
}

.items-subcard:hover img {
    opacity: 0.95;
}

.items-subcard-label {
    padding: 10px 14px;
    font-size: 9px;
    font-weight: 400;
    color: var(--text-tertiary);
    letter-spacing: 0.04em;
}

/* ========================================
   Radial Burst Gallery (demo page)
   ======================================== */

.gallery {
    padding: 0;
    overflow: hidden;
    background: transparent;
    margin: 0;
}

.gallery-burst {
    width: 100%;
    height: 100vh;
    position: relative;
}

.burst-scene {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    background: transparent;
}

.burst-world {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.burst-card {
    position: absolute;
    transform-origin: center center;
    transition: filter 0.3s ease;
    will-change: transform, opacity;
    cursor: pointer;
    border-radius: 6px;
    overflow: hidden;
}

.burst-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.burst-card:hover {
    filter: brightness(1.15) contrast(1.05);
    z-index: 60 !important;
}

.burst-card-placeholder {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-xs);
}

/* ========================================
   Three.js Burst (demo page)
   ======================================== */

.three-burst-section {
    padding: 0;
    margin: 0;
    background: transparent;
}

#three-burst {
    width: 100%;
    height: 100vh;
}

#three-burst canvas {
    display: block;
}

/* ========================================
   Lightbox
   ======================================== */

.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lightbox-overlay.lightbox-active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-img {
    max-width: 85vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    transform: scale(0.92);
    transition: transform 0.3s ease, opacity 0.25s ease;
}

.lightbox-active .lightbox-img {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 28px;
    font-size: 18px;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: color 0.2s ease;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
    line-height: 1;
}

.lightbox-close:hover {
    color: #fff;
}

/* ========================================
   Catalogue TV (demo page)
   ======================================== */

.catalogue {
    padding: 40px 60px 60px;
    background: transparent;
    margin: 0;
}

.catalogue-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 24px;
}

.catalogue-view-all {
    font-size: 10px;
    font-weight: 400;
    color: var(--text-secondary);
    text-decoration: none;
    letter-spacing: 0.04em;
    transition: color 0.2s;
}

.catalogue-view-all:hover {
    color: var(--text-primary);
}

.catalogue-layout {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.tv-wrapper {
    position: relative;
    flex-shrink: 0;
    width: 380px;
}

.tv-frame {
    display: block;
    width: 100%;
    height: auto;
    position: relative;
    z-index: 3;
    pointer-events: none;
}

.tv-screen {
    position: absolute;
    top: 6%;
    left: 7.5%;
    width: 85%;
    height: 72%;
    z-index: 2;
    overflow: hidden;
    background: #111;
    border-radius: 4px;
}

.tv-preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.tv-grunge {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    pointer-events: none;
    mix-blend-mode: overlay;
    z-index: 1;
}

.tv-static {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    pointer-events: none;
    z-index: 2;
    transition: opacity 0.15s ease;
}

.tv-featured-label {
    position: absolute;
    top: 8%;
    right: 10%;
    width: 110px;
    z-index: 4;
    pointer-events: none;
}

.tv-info {
    position: absolute;
    bottom: 15%;
    left: 10%;
    right: 10%;
    z-index: 4;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    color: rgba(255, 255, 255, 0.7);
    text-shadow: 1px 1px 3px rgba(0,0,0,0.8);
    pointer-events: none;
}

.tv-title {
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.08em;
}

.tv-date {
    font-size: 9px;
    font-weight: 300;
    opacity: 0.7;
}

.catalogue-grid {
    display: grid;
    grid-template-columns: repeat(5, 80px);
    grid-auto-rows: 80px;
    gap: 8px;
    flex: 1;
    align-content: start;
    justify-content: end;
}

.catalogue-icon {
    width: 80px;
    height: 80px;
    cursor: pointer;
    border: 1px solid transparent;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-xs);
    transition: all 0.2s ease;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.catalogue-icon img {
    max-width: 64px;
    max-height: 64px;
    object-fit: contain;
    display: block;
    pointer-events: none;
}

.catalogue-icon:hover {
    border-color: var(--glass-border);
    background: var(--glass-bg);
    transform: scale(1.05);
}

.catalogue-icon-active {
    border-color: var(--glass-border);
    background: var(--glass-bg-hover);
}

/* ========================================
   Horizontal Scroll Gallery (demo page)
   ======================================== */

.hscroll-section {
    position: relative;
    background: transparent;
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.hscroll-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 30px;
    flex-shrink: 0;
}

.hscroll-heading {
    font-size: 9px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
}

.hscroll-nav-right {
    display: flex;
    gap: 14px;
}

.hscroll-filter {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 10px;
    font-weight: 300;
    color: var(--text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: color 0.2s;
}

.hscroll-filter:hover {
    color: var(--text-primary);
}

.hscroll-filter.active {
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 0.5px;
}

.hscroll-track {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 32px;
    overflow: hidden;
    padding: 20px 0 30px;
}

.hscroll-row {
    height: 200px;
    overflow: hidden;
    position: relative;
    flex-shrink: 0;
}

.hscroll-row-inner {
    display: flex;
    gap: 12px;
    height: 100%;
    width: max-content;
    will-change: transform;
    align-items: flex-start;
}

.hscroll-item {
    flex-shrink: 0;
    position: relative;
    cursor: pointer;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    border-radius: 6px;
    overflow: hidden;
}

.hscroll-item img {
    width: 100%;
    height: auto;
    display: block;
}

.hscroll-tooltip {
    position: absolute;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 9px;
    font-weight: 400;
    color: var(--text-secondary);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
    z-index: 20;
    letter-spacing: 0.02em;
}

.hscroll-item-hidden {
    opacity: 0;
    visibility: hidden;
}

/* ========================================
   Article Page (blog detail)
   ======================================== */

.article-page {
    position: relative;
    z-index: 1;
    padding: 40px var(--side-padding);
    display: flex;
    justify-content: center;
}

.article {
    max-width: 600px;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur)) saturate(1.2);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(1.2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 48px 44px;
    box-shadow:
        0 8px 32px var(--glass-shadow),
        inset 0 1px 0 var(--glass-highlight);
}

.article-header {
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--glass-border-subtle);
}

.article-date {
    display: block;
    font-size: 9px;
    font-weight: 400;
    color: var(--text-tertiary);
    letter-spacing: 0.06em;
    margin-bottom: 12px;
}

.article-title {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.4;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.article-body h2 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-top: 32px;
    margin-bottom: 12px;
}

.article-body h2:first-child {
    margin-top: 0;
}

.article-body p {
    font-size: 12px;
    font-weight: 300;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.article-body p:last-child {
    margin-bottom: 0;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
    :root {
        --side-padding: 16px;
        --radius: 18px;
        --radius-sm: 12px;
    }

    .site-header {
        padding: 14px var(--side-padding);
    }

    .main-content {
        padding: 12px var(--side-padding);
        gap: 12px;
    }

    .section-index {
        font-size: 80px;
    }

    .demo-section,
    .persona-section,
    .characters,
    .items-section,
    .text-section {
        padding: 28px 20px;
    }

    .demo-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .persona-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .characters-grid {
        flex-wrap: wrap;
    }

    .character-item {
        flex: 1 1 calc(50% - 6px);
    }

    .items-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px 10px;
    }

    /* Sub-pages */
    .subpage {
        padding: 16px var(--side-padding);
    }

    .subpage-hero-title {
        font-size: 36px;
    }

    .subpage-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .items-subgrid {
        columns: 2;
        column-gap: 10px;
    }

    /* Demo pages */
    .gallery-burst {
        height: 80vh;
    }

    #three-burst {
        height: 80vh;
    }

    .catalogue {
        padding: 20px;
    }

    .catalogue-layout {
        flex-direction: column;
    }

    .tv-wrapper {
        width: 100%;
        max-width: 400px;
    }

    .catalogue-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .hscroll-section {
        height: 70vh;
    }

    .hscroll-nav {
        padding: 10px 16px;
    }

    .hscroll-track {
        gap: 16px;
        padding: 10px 0;
    }

    .hscroll-row {
        height: calc((70vh - 100px) / 3);
    }

    /* Article page */
    .article-page {
        padding: 20px var(--side-padding);
    }

    .article {
        padding: 28px 24px;
    }

    .article-title {
        font-size: 16px;
    }
}