/* style.css */
:root {
    --bg-midnight: #0a0a0c;
    --bg-dark: #121216;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent-crimson: #8a0303;
    --accent-crimson-hover: #b00b0b;
    --accent-gold: #c5a059;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    /* Font Fallbacks for safety */
    --font-heading: 'Playfair Display', "Times New Roman", Times, serif;
    --font-body: 'Inter', "Helvetica Neue", Arial, sans-serif;
    
    --transition: all 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { background-color: var(--bg-midnight); color: var(--text-primary); font-family: var(--font-body); line-height: 1.6; overflow-x: hidden; }

/* Sub Page Overrides */
.inner-page {
    background: radial-gradient(circle at top center, rgba(138, 3, 3, 0.1) 0%, var(--bg-midnight) 100%);
}
.pt-150 { padding-top: 150px !important; }
.pt-50 { padding-top: 50px !important; }
.pb-100 { padding-bottom: 100px !important; }
.pb-50 { padding-bottom: 50px !important; }
.mt-0 { margin-top: 0 !important; }
.mt-4 { margin-top: 2rem !important; }

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--accent-gold); font-weight: 600; }
.text-center { text-align: center; }

/* Utilities */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 100px 0; position: relative; z-index: 5; }

.section-title {
    font-size: 2.8rem; text-align: center; margin-bottom: 4rem; position: relative; padding-bottom: 1rem; text-shadow: 0 5px 15px rgba(0,0,0,0.8);
}
.section-title::after {
    content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 80px; height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-crimson), transparent);
}

/* Feature Lists */
.feature-list { list-style: none; margin: 20px 0; text-align: left; display: inline-block; }
.feature-list li { margin-bottom: 15px; color: var(--text-secondary); font-size: 1.1rem; }
.feature-list i { color: var(--accent-gold); margin-right: 10px; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 35px; border-radius: 4px;
    text-decoration: none; font-family: var(--font-heading); font-weight: 600; letter-spacing: 1.5px; transition: var(--transition);
    cursor: pointer; border: 1px solid transparent; text-transform: uppercase;
}
.btn i { font-size: 1.1em; }
.btn-primary { background-color: var(--accent-crimson); color: #fff; box-shadow: 0 4px 15px rgba(138, 3, 3, 0.4); }
.btn-primary:hover { background-color: var(--accent-crimson-hover); box-shadow: 0 0 25px rgba(138, 3, 3, 0.8); transform: translateY(-2px); }
.btn-outline { background-color: rgba(10,10,12,0.6); border-color: var(--accent-gold); color: var(--accent-gold); backdrop-filter: blur(4px); }
.btn-outline:hover { background-color: var(--accent-gold); color: var(--bg-midnight); box-shadow: 0 0 20px rgba(197, 160, 89, 0.5); transform: translateY(-2px); }
.btn-large { padding: 18px 50px; font-size: 1.2rem; }

/* Fog Animation — transform (GPU) thay vì left, ảnh local để tránh DNS + reflow */
.fog-container {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; pointer-events: none; z-index: 10; opacity: 0.35;
}
.fog-img {
    height: 100vh; width: 300vw; position: absolute; top: 0; left: 0;
    will-change: transform;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    background: transparent url('images/fog1.png') repeat-x; background-size: cover;
}
.fog-1 { animation: foglayer_01_opacity 20s linear infinite, foglayer_moveme 30s linear infinite; }
.fog-2 {
    animation: foglayer_02_opacity 21s linear infinite, foglayer_moveme 20s linear infinite;
    background: transparent url('images/fog2.png') repeat-x; background-size: contain;
}
@keyframes foglayer_01_opacity { 0% { opacity: 0.1; } 22% { opacity: 0.5; } 40% { opacity: 0.28; } 58% { opacity: 0.4; } 80% { opacity: 0.16; } 100% { opacity: 0.1; } }
@keyframes foglayer_02_opacity { 0% { opacity: 0.5; } 25% { opacity: 0.2; } 50% { opacity: 0.1; } 80% { opacity: 0.3; } 100% { opacity: 0.5; } }
@keyframes foglayer_moveme { 0% { transform: translate3d(0, 0, 0); } 100% { transform: translate3d(-100vw, 0, 0); } }

/* Music Toggle */
.music-btn {
    position: fixed; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); right: calc(20px + env(safe-area-inset-right, 0px)); width: 50px; height: 50px; border-radius: 50%;
    background: rgba(10, 10, 12, 0.8); border: 1px solid var(--accent-gold); color: var(--accent-gold);
    font-size: 1.2rem; cursor: pointer; z-index: 999; display: flex; align-items: center; justify-content: center;
    transition: var(--transition); backdrop-filter: blur(5px); box-shadow: 0 0 15px rgba(197,160,89, 0.2);
}
.music-btn:hover { background: var(--accent-gold); color: var(--bg-midnight); transform: scale(1.1); }
.music-playing { animation: pulse_music 2s infinite; border-color: var(--accent-crimson); color: var(--accent-crimson); }
@keyframes pulse_music { 0% { box-shadow: 0 0 0 0 rgba(138, 3, 3, 0.7); } 70% { box-shadow: 0 0 0 15px rgba(138, 3, 3, 0); } 100% { box-shadow: 0 0 0 0 rgba(138, 3, 3, 0); } }

/* Navigation */
#navbar {
    position: fixed; top: 0; left: 0; width: 100%; padding: 15px 0; transition: var(--transition); z-index: 100;
}
#navbar.nav-is-open { z-index: 1100; }
#navbar.scrolled {
    background-color: rgba(10, 10, 12, 0.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--glass-border); padding: 10px 0; box-shadow: 0 4px 30px rgba(0,0,0,0.8);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; padding: 0 15px; flex-wrap: nowrap; gap: 10px; position: relative; }
.logo { font-family: var(--font-heading); font-size: 1.4rem; color: var(--accent-gold); font-weight: 700; letter-spacing: 1px; text-shadow: 0 0 10px rgba(197,160,89,0.5); text-decoration: none; white-space: nowrap; z-index: 2; }
.nav-menu {
    display: flex; flex-direction: row; align-items: center; justify-content: flex-end; flex: 1; gap: 12px; flex-wrap: nowrap;
}
.nav-links { display: flex; list-style: none; gap: 15px; margin: 0; padding: 0; align-items: center; }
.nav-links a { color: var(--text-primary); text-decoration: none; font-size: 0.85rem; letter-spacing: 0.5px; font-weight: 600; text-transform: uppercase; transition: var(--transition); white-space: nowrap; }
.nav-links a:hover, .nav-links a.active { color: var(--accent-gold); text-shadow: 0 0 8px rgba(197,160,89,0.6); }
.nav-link-feature {
    color: var(--accent-gold) !important;
    font-weight: 700 !important;
    text-shadow: 0 0 10px rgba(239, 184, 16, 0.45);
}
.nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    background: rgba(10, 10, 12, 0.85);
    cursor: pointer;
    z-index: 2;
    flex-shrink: 0;
}
.nav-burger-bar {
    display: block;
    width: 22px;
    height: 2px;
    margin: 0 auto;
    background: var(--accent-gold);
    border-radius: 1px;
    transition: transform 0.25s ease, opacity 0.2s ease;
}
#navbar.nav-is-open .nav-burger-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#navbar.nav-is-open .nav-burger-bar:nth-child(2) { opacity: 0; }
#navbar.nav-is-open .nav-burger-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-cta {
    background: linear-gradient(45deg, var(--accent-crimson), #5a0202); color: #fff; text-decoration: none; padding: 8px 15px;
    border-radius: 4px; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; transition: var(--transition); box-shadow: 0 4px 15px rgba(138, 3, 3, 0.4); white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(138, 3, 3, 0.6); }

/* Hero Section */
.hero {
    height: 100vh; min-height: 100dvh; display: flex; align-items: center; justify-content: center; text-align: center; position: relative;
    background: radial-gradient(circle at center, rgba(10,10,12,0.3) 0%, var(--bg-midnight) 100%), url('images/hero_bg.png') center/cover no-repeat; background-attachment: scroll;
}
.hero::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 30vh; background: linear-gradient(to top, var(--bg-midnight) 0%, transparent 100%); z-index: 1; }
.hero-content { max-width: 900px; z-index: 20; padding: 0 20px; }
.hero-title { font-size: 4.8rem; margin-bottom: 5px; color: var(--accent-gold); text-shadow: 0 5px 30px rgba(0, 0, 0, 0.9), 0 0 20px rgba(197, 160, 89, 0.3); letter-spacing: 6px; text-transform: uppercase; white-space: nowrap; }
.hero-subtitle { font-size: 1.8rem; color: var(--text-primary); margin-bottom: 40px; letter-spacing: 6px; font-family: var(--font-heading); text-shadow: 0 2px 10px rgba(0,0,0,1); }
.hero-tagline { font-size: 1.4rem; margin-bottom: 50px; font-style: italic; color: #ffdacc; text-shadow: 0 2px 5px rgba(0,0,0,0.8); }
.hero-actions { display: flex; gap: 25px; justify-content: center; }

/* About Section */
.about { background-color: var(--bg-midnight); }
.about-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: center; }
.about-text p { margin-bottom: 25px; font-size: 1.15rem; color: var(--text-secondary); text-align: justify; line-height: 1.8; }
.about-text strong { color: var(--accent-gold); }
.image-placeholder { width: 100%; height: 550px; background: url('images/hero_bg.png') center/cover; border-radius: 8px; border: 2px solid var(--glass-border); box-shadow: 0 20px 50px rgba(0,0,0,0.8), 0 0 30px rgba(138, 3, 3, 0.1) inset; position: relative; }
.image-placeholder::before { content: ''; position: absolute; inset: 0; background: rgba(138, 3, 3, 0.1); mix-blend-mode: overlay; }

/* Characters Section */
.characters { background: radial-gradient(circle at top right, rgba(138,3,3,0.05) 0%, var(--bg-midnight) 100%); position: relative; }
.character-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 50px; position: relative; z-index: 2; padding: 0 20px; }
.character-card { background: transparent; perspective: 1500px; cursor: pointer; min-height: 480px; }
.card-inner { position: relative; width: 100%; height: 100%; transition: transform 0.8s cubic-bezier(0.4, 0.2, 0.2, 1); transform-style: preserve-3d; }
.character-card:hover .card-inner { transform: rotateY(180deg); }
.card-front, .card-back { position: absolute; top: 0; left: 0; width: 100%; height: 100%; backface-visibility: hidden; border-radius: 12px; overflow: hidden; }
.card-front { display: flex; align-items: flex-end; box-shadow: 0 10px 40px rgba(0,0,0,0.6); }
.do-quyen-bg { background: url('images/do_quyen.png') center top/cover; border: 1px solid rgba(138, 3, 3, 0.3); }
.minh-hoang-bg { background: url('images/minh_hoang.png') center top/cover; border: 1px solid rgba(197, 160, 89, 0.3); }
.char-overlay { width: 100%; background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.7) 60%, transparent 100%); padding: 40px 30px 30px; text-align: center; }
.char-overlay h3 { font-size: 2.2rem; margin-bottom: 5px; letter-spacing: 2px; color: var(--accent-gold); text-shadow: 0 2px 10px rgba(0,0,0,1); }
.char-overlay p { color: var(--text-primary); font-size: 1.1rem; margin-bottom: 15px; font-family: var(--font-heading); }
.hover-hint { display: inline-block; font-size: 0.85rem; color: var(--accent-crimson); background: rgba(0,0,0,0.5); padding: 5px 15px; border-radius: 20px; border: 1px solid rgba(138,3,3,0.5); animation: pulse 2s infinite; }
@keyframes pulse { 0% { opacity: 0.6; } 50% { opacity: 1; } 100% { opacity: 0.6; } }
.card-back {
    transform: rotateY(180deg); background: linear-gradient(145deg, #160a0a, #0a0a0c); border: 1px solid var(--accent-crimson); box-shadow: 0 15px 40px rgba(138, 3, 3, 0.15) inset; padding: 25px 25px;
    text-align: center; display: flex; flex-direction: column; justify-content: center; align-items: center; overflow-y: auto;
}
.back-icon { font-size: 2.8rem; color: var(--accent-gold); margin-bottom: 12px; opacity: 0.5; }
.card-back h3 { font-size: 1.3rem; margin-bottom: 12px; color: #fff; }
.card-back p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.5; text-align: justify; }

/* Map Preview Section */
.map-preview { margin-top: 20px; text-decoration: none; }
.map-image-link { display: block; text-decoration: none; }
.map-preview-img { background: url('images/hero_bg.png') center/cover; height: 400px; border-radius: 8px; border: 2px solid var(--accent-gold); position:relative; box-shadow: 0 10px 40px rgba(0,0,0,0.8); overflow: hidden; }
.map-preview-overlay { position:absolute; inset:0; background: rgba(10,10,12,0.6); display:flex; align-items:center; justify-content:center; flex-direction: column; gap: 20px; transition: var(--transition); }
.map-icon { font-size: 4rem; color: var(--accent-gold); text-shadow: 0 0 20px rgba(197, 160, 89, 0.5); transition: var(--transition); }
.map-btn { pointer-events: none; }
.map-image-link:hover .map-preview-overlay { background: rgba(138, 3, 3, 0.3); }
.map-image-link:hover .map-icon { transform: scale(1.1); color: #fff; text-shadow: 0 0 30px rgba(255,255,255,1); }
.map-image-link:hover .map-btn { background-color: var(--accent-crimson-hover); box-shadow: 0 0 25px rgba(138, 3, 3, 0.8); transform: translateY(-2px); }

/* Cases Section - Detailed */
.cases { background-color: var(--bg-dark); }
.cases-list { display: flex; flex-direction: column; gap: 30px; max-width: 900px; margin: 0 auto; }
.case-item { display: flex; gap: 35px; background-color: var(--bg-midnight); padding: 35px; border-radius: 8px; border-left: 3px solid var(--accent-gold); transition: var(--transition); box-shadow: 0 5px 20px rgba(0,0,0,0.5); }
.case-item:hover { transform: translateX(15px); border-left-color: var(--accent-crimson); background-color: #16161a; box-shadow: 0 15px 40px rgba(0,0,0,0.8); }
.case-thumb { width: 100px; height: 100px; background: rgba(138, 3, 3, 0.1); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 2.5rem; color: var(--accent-crimson); flex-shrink: 0; }
.case-info h3 { font-size: 1.6rem; margin-bottom: 12px; color: var(--text-primary); font-family: var(--font-heading); }
.case-info p { color: var(--text-secondary); font-size: 1.05rem; }

/* Dedicated Case Views */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.case-reverse { direction: rtl; }
.case-reverse > * { direction: ltr; }
.case-img-box { position: relative; }
.detail-img { width: 100%; border-radius: 8px; border: 1px solid var(--accent-gold); box-shadow: 0 10px 30px rgba(0,0,0,0.8); }
.case-img-box--quach .case-visual-frame {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    max-height: min(72vh, 560px);
    border: 1px solid rgba(197, 160, 89, 0.45);
    box-shadow: 0 10px 40px rgba(0,0,0,0.85), inset 0 0 80px rgba(80, 0, 0, 0.25);
}
.case-img-box--quach .detail-img--cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 22%;
    border: none;
    box-shadow: none;
    border-radius: 0;
}
.case-img-box--quach .img-caption { margin-top: 18px; }
.img-caption { font-size: 0.9rem; color: var(--text-secondary); font-style: italic; text-align: center; margin-top: 15px; }
.case-detail-text h3.blood-title { font-size: 2.2rem; color: var(--accent-crimson); margin-bottom: 15px; }
.case-detail-text p { font-size: 1.1rem; color: var(--text-secondary); text-align: justify; margin-bottom: 15px; }
.case-meta { display: flex; gap: 20px; font-size: 0.9rem; color: var(--accent-gold); margin-bottom: 25px; font-family: var(--font-heading); }
.creepy-list { list-style: none; margin: 20px 0 20px 20px; }
.creepy-list li { position: relative; margin-bottom: 15px; padding-left: 25px; color: var(--text-primary); }
.creepy-list li::before { content: "🩸"; position: absolute; left: 0; font-size: 0.8rem; top: 4px; }

/* Authors Section */
.authors-detail { min-height: 80vh; }
.author-grid { display: grid; grid-template-columns: 1fr; gap: 40px; max-width: 800px; margin: 0 auto; }
.author-profile {
    background: rgba(255,255,255,0.02); border: 1px solid var(--glass-border); border-radius: 8px; padding: 50px;
    display: flex; flex-direction: column; align-items: center; text-align: center; transition: var(--transition);
}
.author-profile:hover { border-color: var(--accent-gold); background: rgba(255,255,255,0.03); transform: translateY(-5px); }
.author-avatar { width: 80px; height: 80px; background: var(--bg-dark); border: 1px solid var(--accent-gold); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--accent-gold); margin-bottom: 20px; }
.author-name { font-size: 2.2rem; color: #fff; margin-bottom: 5px; }
.author-subtitle { font-family: var(--font-heading); color: var(--accent-crimson); font-size: 1.2rem; margin-bottom: 25px; letter-spacing: 2px; text-transform: uppercase; }
.author-bio p { color: var(--text-secondary); font-size: 1.1rem; line-height: 1.8; text-align: justify; margin-bottom: 15px; }

.author-cta-block { width: 100%; max-width: 520px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.author-btn-htv { margin: 12px 0 0 !important; }
.author-game-card {
    width: 100%;
    text-align: center;
    padding: 1.25rem 1.35rem;
    border-radius: 10px;
    border: 1px solid rgba(197, 160, 89, 0.35);
    background: linear-gradient(165deg, rgba(138, 3, 3, 0.12), rgba(10, 10, 12, 0.92));
    box-shadow: 0 12px 40px rgba(0,0,0,0.45);
}
.author-game-card .author-game-badge {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    letter-spacing: 0.11em;
    text-transform: none;
    color: var(--accent-gold);
    margin: 0 0 1rem;
    opacity: 0.98;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    line-height: 1.45;
    text-align: center;
    text-shadow: 0 0 22px rgba(197, 160, 89, 0.35);
}
.author-game-card .author-game-badge .fa-chess-rook {
    font-size: 0.95em;
    opacity: 0.92;
    filter: drop-shadow(0 0 8px rgba(197, 160, 89, 0.45));
}
.btn-game-1737 {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    text-transform: none;
    letter-spacing: 0.04em;
    font-size: 1rem !important;
    padding: 14px 20px !important;
}

/* CTA Section */
.cta { background: linear-gradient(135deg, #1f0101 0%, var(--bg-midnight) 45%, var(--bg-midnight) 55%, #1a1608 100%); border-top: 1px solid rgba(138, 3, 3, 0.2); border-bottom: 1px solid rgba(197, 160, 89, 0.1); }
.cta-title { font-size: 3rem; margin-bottom: 25px; }
.cta-text { max-width: 650px; margin: 0 auto 40px; font-size: 1.15rem; color: var(--text-secondary); }
.cta-note { margin-top: 25px; font-size: 0.9rem; color: var(--accent-gold); font-style: italic; opacity: 0.8; }

/* Footer */
.footer { padding: 40px 0; background-color: #030304; color: var(--text-secondary); font-size: 0.95rem; }

/* Animations Trigger Classes */
.fade-up { opacity: 0; transform: translateY(40px); transition: opacity 1.2s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1); }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 900px) {
    .author-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .image-placeholder { height: 400px; }
    .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
    .nav-burger { display: flex; }
    .nav-menu {
        display: none;
        position: fixed;
        left: 0;
        right: 0;
        top: 56px;
        height: calc(100vh - 56px);
        height: calc(100dvh - 56px);
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        padding: 1rem 1rem calc(1.5rem + env(safe-area-inset-bottom, 0px));
        gap: 1rem;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        background: rgba(10, 10, 12, 0.97);
        border-bottom: 1px solid var(--glass-border);
        box-shadow: 0 20px 50px rgba(0,0,0,0.85);
        z-index: 99;
    }
    #navbar.nav-is-open .nav-menu { display: flex; }
    .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
    }
    .nav-links li { border-bottom: 1px solid rgba(255,255,255,0.06); }
    .nav-links a {
        display: block;
        padding: 14px 8px;
        white-space: normal;
    }
    .nav-cta {
        text-align: center;
        width: 100%;
        padding: 14px 16px !important;
        margin-top: 0.25rem;
    }
}
@media (max-width: 768px) {
    .nav-container { gap: 5px; padding: 0 10px; }
    .logo { font-size: 1.1rem; letter-spacing: 0; }
    .nav-cta { padding: 6px 12px; font-size: 0.75rem; letter-spacing: 0; }
    .hero-title { font-size: 2.2rem; letter-spacing: 1px; white-space: normal; }
    .hero-subtitle { font-size: 1.1rem; margin-bottom: 20px; }
    .hero-tagline { font-size: 1rem; margin-bottom: 30px; }
    .hero-actions { flex-direction: column; gap: 15px; width: 100%; max-width: 300px; margin: 0 auto; }
    .case-item { flex-direction: column; gap: 20px; }
    .case-thumb { width: 60px; height: 60px; font-size: 1.5rem; }
    .author-profile { padding: 30px; }
}

/* Giảm hiệu ứng khi người dùng bật “giảm chuyển động” — tránh giật / mỏi mắt */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .fog-1, .fog-2 {
        animation: none !important;
        transform: none !important;
        opacity: 0.18 !important;
    }
    .hover-hint { animation: none; opacity: 1; }
    .music-playing { animation: none; }
    .fade-up {
        transform: none;
        transition: opacity 0.4s ease;
    }
    .fade-up.visible { transform: none; }
}