/* ============================
   sora.day — styles.css
   Colors: #ddd0bf #2d2a26 #a0522d #faf3e8 #4a4540 #e8d6c0 #c2a68c #f0e4d1
   Fonts: Libre Baskerville, Source Serif 4, DM Mono
   ============================ */

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

:root {
    --cream-light: #faf3e8;
    --cream: #f0e4d1;
    --cream-mid: #e8d6c0;
    --tan: #ddd0bf;
    --tan-dark: #c2a68c;
    --sienna: #a0522d;
    --charcoal: #4a4540;
    --near-black: #2d2a26;
    --col-offset: 8vw;
    --col-width: 55vw;
}

html {
    scroll-behavior: smooth;
    background-color: var(--cream-light);
}

body {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 300;
    color: var(--near-black);
    background-color: var(--cream-light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Noise Overlay */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 100;
    pointer-events: none;
    opacity: 0.04;
    background: 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='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-size: 300px 300px;
}

/* Margin Glyphs */
.margin-glyphs {
    position: fixed;
    top: 0;
    right: 0;
    width: 37vw;
    height: 100vh;
    z-index: 1;
    pointer-events: none;
}

.margin-glyph {
    position: absolute;
    stroke: var(--tan-dark);
    stroke-width: 0.5;
    fill: none;
    opacity: 0;
    transition: opacity 1.2s ease;
}

.margin-glyph.visible {
    opacity: 0.3;
}

/* Typography */
.mono {
    font-family: 'DM Mono', monospace;
    font-weight: 300;
}

h1, h2 {
    font-family: 'Libre Baskerville', serif;
    font-weight: 700;
}

/* Rooms */
.room {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 2;
}

.room-content {
    margin-left: var(--col-offset);
    width: var(--col-width);
    padding: 6rem 0;
}

.room-label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--sienna);
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.room.revealed .room-label {
    opacity: 1;
    transform: translateY(0);
}

/* Room 1: Hero */
.hero-title {
    font-size: clamp(6rem, 14vw, 12rem);
    letter-spacing: -0.03em;
    line-height: 0.85;
    color: var(--near-black);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.char-wrap {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.room-1.revealed .char-wrap {
    opacity: 1;
    transform: translateY(0);
}

.room-1.revealed .char-wrap:nth-child(1) { transition-delay: 0.1s; }
.room-1.revealed .char-wrap:nth-child(2) { transition-delay: 0.15s; }
.room-1.revealed .char-wrap:nth-child(3) { transition-delay: 0.2s; }
.room-1.revealed .char-wrap:nth-child(4) { transition-delay: 0.25s; }
.room-1.revealed .char-wrap:nth-child(5) { transition-delay: 0.3s; }
.room-1.revealed .char-wrap:nth-child(6) { transition-delay: 0.35s; }
.room-1.revealed .char-wrap:nth-child(7) { transition-delay: 0.4s; }
.room-1.revealed .char-wrap:nth-child(8) { transition-delay: 0.45s; }

.char-wrap.dot {
    color: var(--sienna);
}

.hero-sub {
    margin-bottom: 2rem;
}

.glyph-line {
    font-size: 0.85rem;
    color: var(--charcoal);
    letter-spacing: 0.05em;
    line-height: 1.8;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.8s ease 0.6s, transform 0.8s ease 0.6s;
}

.glyph-line:nth-child(2) {
    transition-delay: 0.75s;
}

.room-1.revealed .glyph-line {
    opacity: 1;
    transform: translateX(0);
}

.hero-rule {
    width: 80px;
    height: 1px;
    background: var(--sienna);
    margin: 2rem 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1s ease 0.9s;
}

.room-1.revealed .hero-rule {
    transform: scaleX(1);
}

.hero-desc {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--charcoal);
    max-width: 500px;
    opacity: 0;
    transition: opacity 1s ease 1.1s;
}

.room-1.revealed .hero-desc {
    opacity: 1;
}

.scroll-hint {
    position: absolute;
    bottom: 3rem;
    left: var(--col-offset);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--tan-dark);
    animation: pulse-hint 2s ease-in-out infinite;
}

@keyframes pulse-hint {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* Room headings and text */
.room-heading {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--near-black);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease 0.2s, transform 0.8s ease 0.2s;
}

.room.revealed .room-heading {
    opacity: 1;
    transform: translateY(0);
}

.room-text {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--charcoal);
    max-width: 520px;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease 0.4s, transform 0.8s ease 0.4s;
}

.room.revealed .room-text {
    opacity: 1;
    transform: translateY(0);
}

.room-quote {
    font-size: 0.8rem;
    line-height: 1.7;
    color: var(--tan-dark);
    border-left: 2px solid var(--sienna);
    padding-left: 1.5rem;
    max-width: 460px;
    opacity: 0;
    transition: opacity 0.8s ease 0.6s;
}

.room.revealed .room-quote {
    opacity: 1;
}

.divider-line {
    width: 60px;
    height: 1px;
    background: var(--tan-dark);
    margin-top: 3rem;
    opacity: 0;
    transition: opacity 0.8s ease 0.5s;
}

.room.revealed .divider-line {
    opacity: 1;
}

/* Isometric containers */
.iso-container, .iso-tower {
    width: 280px;
    height: 280px;
    margin-bottom: 2.5rem;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease 0.1s, transform 1s ease 0.1s;
}

.room.revealed .iso-container,
.room.revealed .iso-tower {
    opacity: 1;
    transform: translateY(0);
}

/* Spiral */
.spiral-container {
    width: 300px;
    height: 300px;
    margin-bottom: 2.5rem;
    position: relative;
    opacity: 0;
    transition: opacity 1s ease 0.2s;
}

.room.revealed .spiral-container {
    opacity: 1;
}

/* Data rows */
.data-row {
    display: flex;
    justify-content: space-between;
    max-width: 320px;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--cream-mid);
    opacity: 0;
    transition: opacity 0.6s ease;
}

.room.revealed .data-row {
    opacity: 1;
}

.room.revealed .data-row:nth-child(1) { transition-delay: 0.6s; }
.room.revealed .data-row:nth-child(2) { transition-delay: 0.75s; }

.data-label {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--tan-dark);
    text-transform: uppercase;
}

.data-value {
    font-size: 0.8rem;
    color: var(--sienna);
}

/* Final glyph */
.final-glyph {
    width: 200px;
    height: 200px;
    margin: 3rem 0;
    position: relative;
    opacity: 0;
    transition: opacity 1s ease 0.3s;
}

.room.revealed .final-glyph {
    opacity: 1;
}

.closing {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--tan-dark);
    opacity: 0;
    transition: opacity 1s ease 0.5s;
}

.room.revealed .closing {
    opacity: 1;
}

/* Room backgrounds */
.room-1 { background-color: var(--cream-light); }
.room-2 { background-color: var(--cream); }
.room-3 { background-color: var(--cream-mid); }
.room-4 { background-color: var(--cream-light); }
.room-5 {
    background-color: var(--near-black);
    color: var(--cream-light);
}

.room-5 .room-label { color: var(--tan-dark); }
.room-5 .room-heading { color: var(--cream-light); }
.room-5 .room-text { color: var(--tan); }
.room-5 .closing { color: var(--sienna); }

/* Responsive */
@media (max-width: 768px) {
    :root {
        --col-offset: 5vw;
        --col-width: 85vw;
    }
    
    .margin-glyphs { display: none; }
    
    .hero-title {
        font-size: clamp(3.5rem, 15vw, 6rem);
    }
}