/* =====================================================================
   Hwaglyul · The Mathematics of Possibility
   Palette: parchment + ink + signal-orange
   ===================================================================== */

:root {
    --paper: #f4ede4;
    --paper-warm: #ece2d3;
    --ink: #1a1814;
    --ink-soft: #3a352d;
    --ink-faded: #6b6358;
    --rule: #c9bfae;
    --signal: #d97757;
    --signal-deep: #b85a3c;
    --plum: #6b4a6b;
    --moss: #5a6b4a;
    --gold: #c9a04a;

    --serif: 'Fraunces', 'Times New Roman', serif;
    --sans: 'Inter', system-ui, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, monospace;

    --max: 1440px;
    --gutter: clamp(20px, 4vw, 60px);
    --rad: 2px;
    --ease: cubic-bezier(.2,.7,.2,1);
}

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

html, body {
    background: var(--paper);
    color: var(--ink);
    font-family: var(--serif);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body {
    position: relative;
    min-height: 100vh;
    background-image:
        radial-gradient(1000px 600px at 80% -10%, rgba(217,119,87,0.08), transparent 60%),
        radial-gradient(800px 500px at -10% 70%, rgba(107,74,107,0.06), transparent 60%);
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ol, ul { list-style: none; }

/* Background canvas — falling probability points */
#probability-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 0.55;
    mix-blend-mode: multiply;
}

/* ============================== HEADER ============================== */

.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    padding: 18px var(--gutter);
    background: linear-gradient(to bottom, rgba(244,237,228,0.92), rgba(244,237,228,0.65) 70%, rgba(244,237,228,0));
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.header-inner {
    max-width: var(--max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 40px;
}

.brand {
    display: inline-flex;
    align-items: baseline;
    gap: 10px;
    font-family: var(--serif);
}
.brand-mark {
    font-size: 1.6rem;
    color: var(--signal);
    font-weight: 600;
    transform: translateY(2px);
    transition: transform .6s var(--ease);
}
.brand:hover .brand-mark { transform: translateY(2px) rotate(-12deg); }
.brand-name {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    font-style: italic;
}

.primary-nav {
    display: flex;
    justify-content: center;
    gap: 32px;
}
.nav-link {
    position: relative;
    font-family: var(--mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink-soft);
    padding: 6px 2px;
    transition: color .25s var(--ease);
}
.nav-link::before {
    content: attr(data-link);
    margin-right: 8px;
    color: var(--signal);
    font-weight: 500;
}
.nav-link::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 1px;
    background: var(--ink);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .35s var(--ease);
}
.nav-link:hover { color: var(--ink); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.is-active::after { transform: scaleX(1); background: var(--signal); }

.header-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--ink-faded);
    letter-spacing: 0.08em;
}

/* ============================== HERO ============================== */

main { position: relative; z-index: 1; }

.hero {
    position: relative;
    min-height: 100vh;
    padding: 140px var(--gutter) 80px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.hero-grid {
    max-width: var(--max);
    margin: 0 auto;
    width: 100%;
    display: grid;
    gap: 40px;
}

.hero-coords {
    display: flex;
    justify-content: space-between;
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--ink-faded);
    letter-spacing: 0.1em;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    padding: 8px 0;
}

.hero-title {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(3.2rem, 9vw, 9.5rem);
    line-height: 0.96;
    letter-spacing: -0.03em;
    color: var(--ink);
    max-width: 16ch;
}
.hero-title .line {
    display: block;
    overflow: hidden;
}
.hero-title .line span,
.hero-title .line {
    transition: transform 1.2s var(--ease), opacity 1s var(--ease);
}
.hero-title .italic {
    font-style: italic;
    color: var(--signal);
    font-weight: 400;
}

.hero-lede {
    font-family: var(--serif);
    font-size: clamp(1.05rem, 1.4vw, 1.3rem);
    line-height: 1.55;
    color: var(--ink-soft);
    max-width: 56ch;
    margin-left: auto;
    text-align: right;
}

.hero-bottom {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--rule);
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    margin-top: 40px;
}
.hero-stat {
    background: var(--paper);
    padding: 22px 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: background .35s var(--ease);
}
.hero-stat:hover { background: var(--paper-warm); }
.stat-num {
    font-family: var(--mono);
    font-size: clamp(1.4rem, 2.4vw, 2.4rem);
    font-weight: 400;
    color: var(--signal);
    letter-spacing: -0.01em;
}
.stat-label {
    font-family: var(--serif);
    font-style: italic;
    font-size: 0.85rem;
    color: var(--ink-faded);
}

.hero-marquee {
    margin-top: 60px;
    overflow: hidden;
    border-top: 1px solid var(--rule);
    padding: 14px 0;
    width: 100vw;
    margin-left: calc(var(--gutter) * -1);
}
.marquee-track {
    display: inline-flex;
    gap: 24px;
    white-space: nowrap;
    font-family: var(--serif);
    font-style: italic;
    font-size: 1.1rem;
    color: var(--ink-faded);
    animation: marquee 50s linear infinite;
}
.marquee-track span:nth-child(odd) { color: var(--ink-soft); }
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ============================== SECTIONS ============================== */

.section-head {
    max-width: var(--max);
    margin: 0 auto 60px;
    padding: 0 var(--gutter);
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 40px;
    align-items: end;
    border-bottom: 1px solid var(--rule);
    padding-bottom: 24px;
}
.section-num {
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--signal);
}
.section-title {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(1.8rem, 3.6vw, 3.4rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    max-width: 24ch;
}

/* ============================== MANIFESTO ============================== */

.manifesto {
    padding: 120px 0 100px;
}
.manifesto-grid {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}
.manifesto-card {
    background: var(--paper);
    padding: 44px 36px;
    transition: background .4s var(--ease), transform .4s var(--ease);
    position: relative;
    overflow: hidden;
}
.manifesto-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(400px 200px at var(--mx, 50%) var(--my, 50%), rgba(217,119,87,0.08), transparent 70%);
    opacity: 0;
    transition: opacity .35s var(--ease);
    pointer-events: none;
}
.manifesto-card:hover { background: var(--paper-warm); }
.manifesto-card:hover::before { opacity: 1; }
.manifesto-card header {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 18px;
}
.card-index {
    font-family: var(--serif);
    font-style: italic;
    color: var(--signal);
    font-size: 1.4rem;
}
.manifesto-card h3 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(1.4rem, 2vw, 1.95rem);
    line-height: 1.15;
    letter-spacing: -0.01em;
}
.manifesto-card p {
    font-family: var(--serif);
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--ink-soft);
}

/* ============================== DISTRIBUTIONS ============================== */

.distributions {
    padding: 120px 0 100px;
    background: linear-gradient(180deg, transparent, rgba(26,24,20,0.025), transparent);
}
.dist-tabs {
    max-width: var(--max);
    margin: 0 auto 32px;
    padding: 0 var(--gutter);
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}
.dist-tab {
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-faded);
    padding: 10px 18px;
    border: 1px solid var(--rule);
    border-radius: 999px;
    transition: all .3s var(--ease);
}
.dist-tab:hover { color: var(--ink); border-color: var(--ink-soft); }
.dist-tab.is-active {
    color: var(--paper);
    background: var(--ink);
    border-color: var(--ink);
}
.dist-stage {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: grid;
    grid-template-columns: 1.7fr 1fr;
    gap: 40px;
    align-items: stretch;
}
.dist-plot {
    background: var(--ink);
    border-radius: var(--rad);
    padding: 24px;
    position: relative;
    box-shadow: 0 30px 60px -30px rgba(26,24,20,0.4);
}
.dist-plot svg {
    width: 100%;
    height: 100%;
    min-height: 420px;
    display: block;
}
#dist-curve {
    transition: d .6s var(--ease);
}
#dist-area {
    transition: d .6s var(--ease);
}
.dist-info {
    background: var(--paper);
    border: 1px solid var(--rule);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.dist-label {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    color: var(--signal);
    text-transform: uppercase;
}
.dist-info h3 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.6rem;
    letter-spacing: -0.01em;
}
.dist-info p {
    font-family: var(--serif);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--ink-soft);
}
.dist-params { display: flex; flex-direction: column; gap: 14px; }
.param-row {
    display: grid;
    grid-template-columns: 90px 1fr;
    align-items: center;
    gap: 14px;
}
.param-row dt {
    font-family: var(--serif);
    font-style: italic;
    font-size: 1.1rem;
}
.param-row dt span {
    display: block;
    font-family: var(--mono);
    font-style: normal;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-faded);
}
.param-row dd {
    display: flex;
    align-items: center;
    gap: 12px;
}
.param-row dd input[type=range] {
    flex: 1;
    appearance: none;
    -webkit-appearance: none;
    height: 2px;
    background: var(--rule);
    outline: none;
}
.param-row dd input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--signal);
    cursor: grab;
    border: 2px solid var(--paper);
    box-shadow: 0 0 0 1px var(--ink-soft);
}
.param-row dd input[type=range]::-moz-range-thumb {
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--signal);
    cursor: grab;
    border: 2px solid var(--paper);
}
.param-row dd span {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--ink);
    min-width: 48px;
    text-align: right;
}
.dist-formula {
    margin-top: auto;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--ink-faded);
    padding: 12px;
    background: var(--paper-warm);
    border-left: 2px solid var(--signal);
    line-height: 1.5;
}

/* ============================== ARCHIVE ============================== */

.archive {
    padding: 120px 0 100px;
}
.archive-list {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gutter);
}
.archive-item {
    display: grid;
    grid-template-columns: 80px 130px 1fr 200px 40px;
    gap: 30px;
    align-items: baseline;
    padding: 28px 12px;
    border-bottom: 1px solid var(--rule);
    cursor: pointer;
    transition: background .3s var(--ease), padding .3s var(--ease);
    position: relative;
}
.archive-item:first-child { border-top: 1px solid var(--rule); }
.archive-item:hover {
    background: var(--paper-warm);
    padding-left: 28px;
}
.archive-item:hover .arch-arrow { transform: translateX(8px); color: var(--signal); }
.archive-item:hover .arch-title { color: var(--signal-deep); }
.arch-num {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--signal);
    letter-spacing: 0.1em;
}
.arch-date {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--ink-faded);
    letter-spacing: 0.08em;
}
.arch-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(1.15rem, 1.6vw, 1.55rem);
    line-height: 1.25;
    letter-spacing: -0.01em;
    transition: color .3s var(--ease);
}
.arch-meta {
    font-family: var(--serif);
    font-style: italic;
    font-size: 0.9rem;
    color: var(--ink-faded);
    text-align: right;
}
.arch-arrow {
    font-family: var(--mono);
    font-size: 1.1rem;
    color: var(--ink-faded);
    text-align: right;
    transition: transform .35s var(--ease), color .3s var(--ease);
}

/* ============================== ORACLE ============================== */

.oracle {
    padding: 120px 0 100px;
}
.oracle-stage {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: stretch;
}
.oracle-board {
    background: var(--ink);
    color: var(--paper);
    padding: 36px;
    border-radius: var(--rad);
    display: flex;
    flex-direction: column;
    gap: 28px;
    min-height: 380px;
    position: relative;
    overflow: hidden;
}
.oracle-board::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(0deg, transparent 0 3px, rgba(244,237,228,0.02) 3px 4px);
    pointer-events: none;
}
.oracle-screen {
    font-family: var(--mono);
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 10px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(244,237,228,0.15);
    min-height: 90px;
}
.oracle-prefix {
    color: var(--signal);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.oracle-text {
    color: var(--paper);
    font-size: clamp(1rem, 1.6vw, 1.4rem);
    letter-spacing: -0.005em;
    line-height: 1.4;
}
.oracle-cursor {
    display: inline-block;
    width: 9px;
    height: 1.1em;
    background: var(--signal);
    margin-left: 4px;
    animation: blink 1s steps(2) infinite;
    transform: translateY(2px);
}
@keyframes blink { 50% { opacity: 0; } }

.oracle-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 200px;
    padding-top: 16px;
}
.oracle-bars span {
    flex: 1;
    background: var(--signal);
    height: calc(var(--h) * 100%);
    border-radius: 2px 2px 0 0;
    transition: height .8s var(--ease);
    opacity: 0.92;
}
.oracle-bars span:nth-child(odd) { background: var(--paper); opacity: 0.85; }

.oracle-controls {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.oracle-note {
    font-family: var(--serif);
    font-style: italic;
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 1.55;
    max-width: 36ch;
}
.oracle-buttons {
    display: grid;
    gap: 6px;
}
.oracle-btn {
    text-align: left;
    font-family: var(--serif);
    font-size: 0.98rem;
    padding: 14px 18px;
    border: 1px solid var(--rule);
    background: var(--paper);
    transition: all .3s var(--ease);
    position: relative;
}
.oracle-btn::before {
    content: '?';
    color: var(--signal);
    font-style: italic;
    margin-right: 12px;
    font-weight: 600;
}
.oracle-btn:hover {
    background: var(--ink);
    color: var(--paper);
    border-color: var(--ink);
    transform: translateX(4px);
}
.oracle-btn:hover::before { color: var(--paper); }
.oracle-reset {
    align-self: flex-start;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--ink-faded);
    letter-spacing: 0.1em;
    padding: 6px 12px;
    margin-top: 4px;
    border-bottom: 1px solid transparent;
    transition: all .25s var(--ease);
}
.oracle-reset:hover {
    color: var(--signal);
    border-color: var(--signal);
}

/* ============================== SUBSCRIBE ============================== */

.subscribe {
    padding: 120px 0;
    background: var(--ink);
    color: var(--paper);
    margin-top: 60px;
}
.subscribe-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--gutter);
    text-align: center;
}
.sub-eyebrow {
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--signal);
    margin-bottom: 22px;
}
.sub-title {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(1.7rem, 3.4vw, 3rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 36px;
}
.sub-form {
    display: flex;
    gap: 0;
    max-width: 540px;
    margin: 0 auto 18px;
    border-bottom: 1px solid rgba(244,237,228,0.4);
    transition: border-color .3s var(--ease);
}
.sub-form:focus-within { border-color: var(--signal); }
.sub-form input {
    flex: 1;
    background: transparent;
    border: 0;
    outline: none;
    color: var(--paper);
    font-family: var(--serif);
    font-size: 1.1rem;
    padding: 14px 8px;
    font-style: italic;
}
.sub-form input::placeholder { color: rgba(244,237,228,0.4); }
.sub-form button {
    font-family: var(--mono);
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    color: var(--signal);
    padding: 14px 8px;
    transition: transform .3s var(--ease);
}
.sub-form button:hover { transform: translateX(6px); }
.sub-status {
    font-family: var(--serif);
    font-style: italic;
    font-size: 0.88rem;
    color: rgba(244,237,228,0.6);
}

/* ============================== FOOTER ============================== */

.site-footer {
    padding: 80px var(--gutter) 24px;
    background: var(--paper);
    border-top: 1px solid var(--rule);
}
.footer-grid {
    max-width: var(--max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 60px;
}
.foot-col h4 {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--signal);
    margin-bottom: 14px;
    font-weight: 500;
}
.foot-col a {
    display: block;
    font-family: var(--serif);
    font-size: 1rem;
    color: var(--ink-soft);
    padding: 4px 0;
    transition: color .25s var(--ease);
}
.foot-col a:hover { color: var(--signal); }
.foot-col p {
    font-family: var(--serif);
    font-style: italic;
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 1.55;
}
.foot-mark {
    display: inline-block;
    font-size: 2.4rem;
    color: var(--signal);
    margin-bottom: 12px;
}
.foot-tag { font-style: italic; }

.footer-bottom {
    max-width: var(--max);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--rule);
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--ink-faded);
    letter-spacing: 0.08em;
}

/* ============================== RESPONSIVE ============================== */

@media (max-width: 960px) {
    .header-inner { grid-template-columns: 1fr auto; gap: 16px; }
    .primary-nav { display: none; }
    .header-meta { display: none; }
    .hero-bottom { grid-template-columns: repeat(2, 1fr); }
    .section-head { grid-template-columns: 1fr; gap: 12px; }
    .manifesto-grid { grid-template-columns: 1fr; }
    .dist-stage, .oracle-stage { grid-template-columns: 1fr; }
    .archive-item {
        grid-template-columns: 80px 1fr 30px;
        gap: 14px;
        row-gap: 6px;
    }
    .arch-date, .arch-meta {
        grid-column: 2 / -1;
        text-align: left;
    }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 8px; }
}

@media (max-width: 560px) {
    .hero { padding-top: 100px; }
    .hero-bottom { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
}

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }