/* ============================================================
   blockchain.day — styles
   Swiss grid · dopamine-neon · spring motion · circuit motifs
   ============================================================ */

:root {
    /* Color tokens */
    --ink-void: #0B0B10;
    --ink-slab: #17171F;
    --ink-bone: #F4F2EC;
    --ink-fog: #8A8A96;
    --neon-lime: #C6FF3D;
    --neon-magenta: #FF3DA5;
    --neon-cyan: #3DE8FF;
    --neon-tangerine: #FF8A3D;
    --neon-violet: #8A3DFF;

    /* Spacing — modular */
    --s-1: 4px;
    --s-2: 8px;
    --s-3: 12px;
    --s-4: 16px;
    --s-5: 24px;
    --s-6: 32px;
    --s-7: 48px;
    --s-8: 64px;
    --s-9: 96px;
    --s-10: 144px;

    /* Type scale */
    --t-12: 12px;
    --t-14: 14px;
    --t-16: 16px;
    --t-20: 20px;
    --t-28: 28px;
    --t-40: 40px;
    --t-64: 64px;
    --t-96: 96px;
    --t-144: 144px;

    /* Motion */
    --spring: 480ms cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out: 200ms cubic-bezier(0.22, 1, 0.36, 1);
    --linear-fade: 180ms linear;

    /* Layout */
    --maxw: 1440px;
    --gutter: 24px;
    --baseline: 16px;
}

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

html {
    background: var(--ink-void);
    color: var(--ink-bone);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: var(--t-16);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(198, 255, 61, 0.06), transparent 60%),
        radial-gradient(ellipse at 90% 30%, rgba(255, 61, 165, 0.05), transparent 55%),
        radial-gradient(ellipse at 50% 100%, rgba(61, 232, 255, 0.04), transparent 60%),
        var(--ink-void);
    position: relative;
}

::selection {
    background: var(--neon-magenta);
    color: var(--ink-void);
}

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

ul, ol {
    list-style: none;
}

button {
    font: inherit;
    color: inherit;
    background: transparent;
    border: none;
    cursor: pointer;
}

img, svg {
    display: block;
    max-width: 100%;
}

/* ----------------------------------------------------------------
   Circuit background
---------------------------------------------------------------- */

.circuit-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.42;
    overflow: hidden;
}

.circuit-svg {
    width: 100%;
    height: 100%;
    min-height: 100vh;
}

.circuit-trace {
    fill: none;
    stroke: rgba(61, 232, 255, 0.18);
    stroke-width: 1;
    stroke-linecap: square;
    stroke-linejoin: miter;
    stroke-dasharray: 2 6;
}

.circuit-trace--alt {
    stroke: rgba(255, 61, 165, 0.14);
    stroke-dasharray: 1 5;
}

.circuit-dot {
    fill: var(--neon-lime);
    filter: drop-shadow(0 0 6px var(--neon-lime));
}

/* ----------------------------------------------------------------
   Header
---------------------------------------------------------------- */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    z-index: 100;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 var(--s-6);
    background: linear-gradient(to bottom, rgba(11, 11, 16, 0.85), rgba(11, 11, 16, 0.3));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(244, 242, 236, 0.06);
    transition: border-color var(--ease-out);
}

.site-header.is-scrolled {
    border-bottom-color: rgba(244, 242, 236, 0.12);
}

.wordmark {
    display: inline-flex;
    align-items: center;
    gap: var(--s-2);
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 600;
    font-size: var(--t-16);
    letter-spacing: -0.02em;
    color: var(--ink-bone);
}

.wordmark__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--neon-lime);
    box-shadow: 0 0 12px var(--neon-lime);
    animation: pulseDot 2.4s ease-in-out infinite;
}

.wordmark__suffix {
    color: var(--neon-magenta);
}

.primary-nav {
    display: inline-flex;
    gap: var(--s-6);
    justify-self: center;
}

.nav-link {
    position: relative;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ink-fog);
    padding: var(--s-2) 0;
    transition: color var(--ease-out);
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 1px;
    background: var(--neon-magenta);
    transform-origin: left center;
    transform: scaleX(0);
    transition: transform var(--ease-out);
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--ink-bone);
}

.nav-link:hover::after,
.nav-link.is-active::after {
    transform: scaleX(1);
}

.nav-link.is-active::after {
    background: var(--neon-lime);
}

.header-meta {
    justify-self: end;
    display: inline-flex;
    align-items: baseline;
    gap: var(--s-2);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
}

.header-meta__label {
    color: var(--ink-fog);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.header-meta__time {
    color: var(--neon-cyan);
}

@keyframes pulseDot {
    0%, 100% { box-shadow: 0 0 12px var(--neon-lime); transform: scale(1); }
    50% { box-shadow: 0 0 22px var(--neon-lime); transform: scale(1.18); }
}

/* ----------------------------------------------------------------
   Section base
---------------------------------------------------------------- */

main {
    position: relative;
    z-index: 1;
    padding-top: 72px;
}

.section {
    position: relative;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: var(--s-10) var(--s-6);
    z-index: 2;
}

.section-label {
    position: sticky;
    top: 96px;
    display: inline-block;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--ink-fog);
    margin-bottom: var(--s-7);
    padding-left: var(--s-3);
    border-left: 2px solid var(--neon-cyan);
}

.section-head {
    max-width: 760px;
    margin-bottom: var(--s-9);
}

.section-title {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: clamp(40px, 6vw, 96px);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.02;
    margin-bottom: var(--s-5);
}

.section-title em {
    font-style: italic;
    color: var(--neon-magenta);
    font-weight: 400;
}

.section-deck {
    font-size: var(--t-20);
    color: var(--ink-fog);
    max-width: 60ch;
    line-height: 1.5;
}

/* ----------------------------------------------------------------
   Hero
---------------------------------------------------------------- */

.section--hero {
    min-height: 100vh;
    padding-top: var(--s-9);
    padding-bottom: var(--s-9);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-7);
}

.hero-meta {
    display: inline-flex;
    align-items: center;
    gap: var(--s-4);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-14);
    color: var(--ink-fog);
}

.hero-meta__date {
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.hero-meta__pill {
    display: inline-flex;
    align-items: center;
    gap: var(--s-2);
    padding: 4px 10px;
    border: 1px solid rgba(198, 255, 61, 0.4);
    border-radius: 999px;
    color: var(--neon-lime);
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--neon-lime);
    box-shadow: 0 0 8px var(--neon-lime);
    animation: pulseDot 1.6s ease-in-out infinite;
}

.hero-title {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 0.94;
    color: var(--ink-bone);
    display: grid;
    gap: var(--s-3);
}

.hero-title__lead {
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 500;
    color: var(--ink-fog);
    letter-spacing: -0.01em;
}

.hero-number {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: clamp(72px, 14vw, 200px);
    font-weight: 600;
    letter-spacing: -0.04em;
    line-height: 0.92;
    background: linear-gradient(180deg, var(--ink-bone) 0%, var(--neon-lime) 60%, var(--neon-cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    transition: filter var(--ease-out);
    word-break: break-all;
}

.hero-number.is-flashing {
    filter: drop-shadow(0 0 24px rgba(198, 255, 61, 0.6));
}

.hero-title__trail {
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 500;
    color: var(--ink-bone);
    max-width: 22ch;
    letter-spacing: -0.01em;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s-5);
    border-top: 1px solid rgba(244, 242, 236, 0.08);
    padding-top: var(--s-5);
    max-width: 720px;
}

.hero-stat {
    display: grid;
    gap: var(--s-2);
}

.hero-stat__label {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-fog);
}

.hero-stat__value {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: var(--t-28);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--neon-cyan);
}

.hero-stat__value--mono {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-20);
    color: var(--neon-tangerine);
}

.hero-chart {
    border: 1px solid rgba(244, 242, 236, 0.08);
    border-radius: 4px;
    padding: var(--s-4) var(--s-5) var(--s-3);
    background: rgba(23, 23, 31, 0.5);
    max-width: 720px;
}

.hero-chart__caption {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-fog);
    margin-bottom: var(--s-3);
}

.sparkline {
    width: 100%;
    height: 140px;
}

.sparkline__line {
    stroke: var(--neon-lime);
    stroke-width: 1.5;
    stroke-linejoin: round;
    stroke-linecap: round;
}

.sparkline__dot {
    fill: var(--neon-lime);
    filter: drop-shadow(0 0 8px var(--neon-lime));
}

.cta {
    display: inline-flex;
    align-items: center;
    gap: var(--s-3);
    padding: var(--s-4) var(--s-6);
    border: 1px solid var(--neon-lime);
    color: var(--ink-bone);
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: var(--t-20);
    font-weight: 500;
    letter-spacing: -0.01em;
    border-radius: 999px;
    align-self: start;
    position: relative;
    overflow: hidden;
    transition: color var(--ease-out), transform var(--spring);
    isolation: isolate;
    --cta-x: 50%;
}

.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--cta-x) 50%, var(--neon-lime) 0%, var(--neon-lime) 0%, transparent 0%);
    transition: background 220ms ease;
    z-index: -1;
}

.cta:hover {
    color: var(--ink-void);
    transform: translateY(-2px);
}

.cta:hover::before {
    background: radial-gradient(circle at var(--cta-x) 50%, var(--neon-lime) 0%, var(--neon-lime) 100%, transparent 100%);
}

.cta__chevron {
    transition: transform var(--spring);
}

.cta__chevron.is-bobbing {
    animation: chevBob 1.6s ease-in-out 3;
}

@keyframes chevBob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-bg__layer {
    position: absolute;
    inset: 0;
    will-change: transform;
}

.hero-bg__layer--back {
    background:
        radial-gradient(circle at 80% 20%, rgba(138, 61, 255, 0.18), transparent 35%),
        radial-gradient(circle at 10% 80%, rgba(255, 61, 165, 0.12), transparent 40%);
}

.hero-bg__layer--mid {
    background-image:
        linear-gradient(rgba(244, 242, 236, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(244, 242, 236, 0.04) 1px, transparent 1px);
    background-size: 64px 64px;
}

.hero-bg__layer--front {
    background:
        radial-gradient(circle at 50% 100%, rgba(61, 232, 255, 0.1), transparent 50%);
}

/* ----------------------------------------------------------------
   Pulse — three live metric cards
---------------------------------------------------------------- */

.pulse-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s-5);
}

.pulse-card {
    position: relative;
    background: var(--ink-slab);
    border: 1px solid rgba(244, 242, 236, 0.06);
    border-radius: 4px;
    padding: var(--s-6);
    display: flex;
    flex-direction: column;
    gap: var(--s-5);
    transition: transform var(--spring), border-color var(--ease-out);
    overflow: hidden;
}

.pulse-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-lime), var(--neon-cyan), var(--neon-magenta));
    opacity: 0;
    transition: opacity var(--ease-out);
}

.pulse-card:hover {
    transform: translateY(-4px);
    border-color: var(--neon-lime);
}

.pulse-card:hover::before {
    opacity: 1;
}

.pulse-card__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    border-bottom: 1px solid rgba(244, 242, 236, 0.08);
    padding-bottom: var(--s-3);
}

.pulse-card__label {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink-fog);
}

.pulse-card__delta {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-14);
    font-weight: 500;
}

.pulse-card__delta--up { color: var(--neon-lime); }
.pulse-card__delta--down { color: var(--neon-tangerine); }

.pulse-card__value {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: var(--t-64);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--ink-bone);
}

.pulse-card__unit {
    font-size: var(--t-20);
    color: var(--ink-fog);
    font-weight: 400;
    margin-left: 6px;
}

.pulse-card__chart {
    width: 100%;
    height: 110px;
}

.pulse-card__chart-line {
    stroke: var(--neon-lime);
    stroke-width: 1.5;
    fill: none;
}

[data-metric="tps"] .pulse-card__chart-line { stroke: var(--neon-cyan); }

.pulse-card__bars {
    display: flex;
    gap: 4px;
    align-items: flex-end;
    height: 110px;
}

.pulse-card__bars span {
    flex: 1;
    background: var(--neon-cyan);
    min-height: 4px;
    border-radius: 1px;
    transition: height var(--spring), background var(--ease-out);
    box-shadow: 0 0 6px rgba(61, 232, 255, 0.4);
}

.pulse-card__radial {
    width: 140px;
    height: 140px;
    align-self: center;
}

.radial-track {
    fill: none;
    stroke: rgba(244, 242, 236, 0.08);
    stroke-width: 6;
}

.radial-progress {
    fill: none;
    stroke: var(--neon-magenta);
    stroke-width: 6;
    stroke-linecap: round;
    transform: rotate(-90deg);
    transform-origin: center;
    stroke-dasharray: 364;
    stroke-dashoffset: 4;
    filter: drop-shadow(0 0 6px rgba(255, 61, 165, 0.4));
    transition: stroke-dashoffset var(--spring);
}

.radial-label {
    fill: var(--ink-bone);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 18px;
    font-weight: 500;
}

.pulse-card__foot {
    border-top: 1px solid rgba(244, 242, 236, 0.06);
    padding-top: var(--s-3);
}

.pulse-card__sub {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    color: var(--ink-fog);
    letter-spacing: 0.04em;
}

/* ----------------------------------------------------------------
   Pattern — editorial
---------------------------------------------------------------- */

.pattern-article {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: var(--s-7);
    align-items: start;
}

.pattern-prose {
    font-size: var(--t-20);
    line-height: 1.5;
    color: var(--ink-bone);
    display: grid;
    gap: var(--s-5);
}

.pattern-lede {
    font-size: var(--t-28);
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.pattern-lede strong {
    color: var(--neon-magenta);
    font-weight: 600;
}

.pattern-prose p {
    color: var(--ink-fog);
}

.pattern-prose p:first-of-type {
    color: var(--ink-bone);
}

.pattern-points {
    display: grid;
    gap: var(--s-3);
    border-top: 1px solid rgba(244, 242, 236, 0.08);
    padding-top: var(--s-5);
    font-size: var(--t-16);
    color: var(--ink-bone);
}

.pattern-points li {
    display: grid;
    grid-template-columns: 36px 1fr;
    gap: var(--s-3);
    align-items: baseline;
}

.point-num {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    color: var(--neon-cyan);
    letter-spacing: 0.05em;
}

.pattern-figure {
    background: var(--ink-slab);
    border: 1px solid rgba(244, 242, 236, 0.06);
    border-radius: 4px;
    padding: var(--s-5) var(--s-6);
    position: sticky;
    top: 120px;
}

.pattern-figure__caption {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-fog);
    margin-bottom: var(--s-4);
}

.reorg-chart {
    width: 100%;
    height: 320px;
}

.reorg-axis {
    stroke: rgba(244, 242, 236, 0.16);
    stroke-width: 1;
}

.reorg-axis-label {
    fill: var(--ink-fog);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.reorg-bar {
    fill: var(--neon-violet);
    transition: fill var(--ease-out), transform var(--spring);
    transform-origin: bottom;
}

.reorg-bar--deep { fill: var(--neon-magenta); }
.reorg-bar:hover { fill: var(--neon-cyan); }

/* ----------------------------------------------------------------
   Practice — toolbelt tiles
---------------------------------------------------------------- */

.practice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--s-5);
}

.practice-tile {
    position: relative;
    display: grid;
    gap: var(--s-3);
    padding: var(--s-7) var(--s-6);
    background: var(--ink-slab);
    border: 1px solid rgba(244, 242, 236, 0.06);
    border-radius: 4px;
    overflow: hidden;
    transition: transform var(--spring), border-color var(--ease-out);
    min-height: 240px;
}

.practice-tile::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 60%, rgba(198, 255, 61, 0.04) 100%);
    opacity: 0;
    transition: opacity var(--ease-out);
}

.practice-tile:hover {
    transform: translateY(-4px);
    border-color: var(--neon-magenta);
}

.practice-tile:hover::after { opacity: 1; }

.practice-tile:hover .practice-tile__cta {
    color: var(--neon-magenta);
    transform: translateX(4px);
}

.practice-tile:hover .practice-tile__glyph {
    transform: rotate(8deg) scale(1.05);
}

.practice-tile__num {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--neon-cyan);
}

.practice-tile__title {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: var(--t-28);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--ink-bone);
}

.practice-tile__desc {
    color: var(--ink-fog);
    font-size: var(--t-16);
    line-height: 1.5;
    max-width: 38ch;
}

.practice-tile__cta {
    margin-top: auto;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-14);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--neon-lime);
    transition: color var(--ease-out), transform var(--spring);
    align-self: start;
}

.practice-tile__glyph {
    position: absolute;
    top: var(--s-5);
    right: var(--s-5);
    width: 60px;
    height: 60px;
    fill: none;
    stroke: var(--ink-fog);
    stroke-width: 1.5;
    stroke-linecap: square;
    stroke-linejoin: miter;
    transition: transform var(--spring), stroke var(--ease-out);
}

.practice-tile:hover .practice-tile__glyph {
    stroke: var(--neon-magenta);
}

/* ----------------------------------------------------------------
   Ledger — chronological rows
---------------------------------------------------------------- */

.ledger-list {
    display: grid;
    border-top: 1px solid rgba(244, 242, 236, 0.08);
}

.ledger-row {
    display: grid;
    grid-template-columns: 140px 100px 1fr auto;
    gap: var(--s-5);
    align-items: baseline;
    padding: var(--s-5) 0;
    border-bottom: 1px solid rgba(244, 242, 236, 0.08);
    cursor: pointer;
    position: relative;
    transition: padding-left var(--spring), background var(--ease-out);
}

.ledger-row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--neon-lime);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--spring);
}

.ledger-row:hover {
    padding-left: var(--s-5);
    background: rgba(198, 255, 61, 0.03);
}

.ledger-row:hover::before { transform: scaleY(1); }

.ledger-row:hover .ledger-row__title { color: var(--neon-lime); }

.ledger-row__date {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-14);
    color: var(--neon-cyan);
    letter-spacing: 0.04em;
}

.ledger-row__height {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-14);
    color: var(--ink-fog);
}

.ledger-row__title {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: var(--t-20);
    font-weight: 500;
    color: var(--ink-bone);
    letter-spacing: -0.01em;
    transition: color var(--ease-out);
}

.ledger-row__tag {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--neon-magenta);
    padding: 2px 10px;
    border: 1px solid rgba(255, 61, 165, 0.4);
    border-radius: 999px;
}

/* ----------------------------------------------------------------
   Footer
---------------------------------------------------------------- */

.site-footer {
    position: relative;
    z-index: 2;
    border-top: 1px solid rgba(244, 242, 236, 0.08);
    padding: var(--s-8) var(--s-6) var(--s-6);
    max-width: var(--maxw);
    margin: var(--s-9) auto 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: var(--s-7);
}

.footer-col {
    display: grid;
    gap: var(--s-3);
    align-content: start;
}

.footer-label {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--ink-fog);
    margin-bottom: var(--s-2);
}

.footer-blurb {
    color: var(--ink-fog);
    font-size: var(--t-14);
    line-height: 1.5;
    max-width: 42ch;
}

.footer-list {
    display: grid;
    gap: var(--s-2);
}

.footer-list a {
    color: var(--ink-bone);
    font-size: var(--t-14);
    transition: color var(--ease-out);
    position: relative;
    display: inline-block;
}

.footer-list a:hover {
    color: var(--neon-cyan);
}

.footer-mono {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: var(--t-12);
    color: var(--ink-fog);
}

.footer-col--meta .footer-mono:first-of-type {
    color: var(--neon-lime);
}

/* ----------------------------------------------------------------
   Reveal animation
---------------------------------------------------------------- */

[data-reveal] {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity var(--linear-fade), transform var(--spring);
}

[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----------------------------------------------------------------
   Responsive
---------------------------------------------------------------- */

@media (max-width: 1280px) {
    .pattern-article {
        grid-template-columns: 1fr;
    }
    .pattern-figure { position: static; }
}

@media (max-width: 960px) {
    .section { padding: var(--s-9) var(--s-5); }
    .pulse-grid {
        grid-template-columns: 1fr;
    }
    .practice-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .ledger-row {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
            "date height"
            "title title"
            "tag tag";
    }
    .ledger-row__date { grid-area: date; }
    .ledger-row__height { grid-area: height; text-align: right; }
    .ledger-row__title { grid-area: title; }
    .ledger-row__tag { grid-area: tag; justify-self: start; }
    .hero-stats {
        grid-template-columns: 1fr 1fr;
    }
    .header-meta { display: none; }
    .primary-nav { gap: var(--s-4); }
    .nav-link { font-size: 11px; }
}

@media (max-width: 600px) {
    .site-header {
        grid-template-columns: 1fr auto;
        padding: 0 var(--s-4);
    }
    .primary-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        justify-self: stretch;
        background: rgba(11, 11, 16, 0.92);
        backdrop-filter: blur(12px);
        border-top: 1px solid rgba(244, 242, 236, 0.08);
        padding: var(--s-3) var(--s-4);
        justify-content: space-between;
    }
    .section { padding: var(--s-8) var(--s-4); }
    .pulse-card { padding: var(--s-5); }
    .pulse-card__value { font-size: var(--t-40); }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-stats {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 150ms !important;
        scroll-behavior: auto !important;
    }
    .hero-bg__layer, [data-parallax] { transform: none !important; }
}