/* Vortex Design System — 4px base, 1.25 type ratio, semantic color tokens */
:root {
  --ink: #111318;
  --ink-soft: #565a63;
  --paper: #f3f1eb;
  --paper-raised: #fbfaf7;
  --line: rgba(17,19,24,.14);
  --accent: #ff5b35;
  --accent-deep: #d93b18;
  --night: #0b0c10;
  --night-raised: #15171d;
  --night-line: rgba(255,255,255,.14);
  --white: #f8f7f2;
  --success: #75d69c;
  --font-sans: Inter, "Helvetica Neue", Arial, sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
  --step--1: clamp(.78rem,.74rem + .16vw,.88rem);
  --step-0: clamp(1rem,.95rem + .18vw,1.125rem);
  --step-1: clamp(1.25rem,1.12rem + .5vw,1.6rem);
  --step-2: clamp(1.56rem,1.32rem + .92vw,2.2rem);
  --step-3: clamp(1.95rem,1.5rem + 1.7vw,3.15rem);
  --step-4: clamp(2.44rem,1.55rem + 3.5vw,5rem);
  --step-5: clamp(3.05rem,1.45rem + 6.3vw,7.5rem);
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 7rem;
  --radius-sm: .5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --ease: cubic-bezier(.22,1,.36,1);
  --shadow: 0 24px 70px rgba(17,19,24,.1);
  --header-h: 5rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); font-family: var(--font-sans); font-size: var(--step-0); line-height: 1.65; -webkit-font-smoothing: antialiased; }
body.dark { --paper:#0b0c10; --paper-raised:#15171d; --ink:#f6f4ee; --ink-soft:#a4a6ad; --line:rgba(255,255,255,.14); --shadow:0 24px 80px rgba(0,0,0,.35); }
::selection { background: var(--accent); color: #fff; }
a, button { color: inherit; }
a { text-decoration: none; }
button { font: inherit; }
img, svg { display: block; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.container { width: min(1180px, calc(100% - 3rem)); margin-inline: auto; }
.skip-link { position: fixed; top: 1rem; left: 1rem; padding: .75rem 1rem; background: var(--accent); color: #fff; z-index: 1000; transform: translateY(-150%); transition: transform .2s; border-radius: var(--radius-sm); }
.skip-link:focus { transform: none; }

.site-header { position: fixed; inset: 0 0 auto; height: var(--header-h); z-index: 100; border-bottom: 1px solid transparent; transition: background .3s, border-color .3s, height .3s; }
.site-header.scrolled { background: color-mix(in srgb, var(--paper) 88%, transparent); border-color: var(--line); backdrop-filter: blur(18px); }
.nav-shell { width: min(1320px, calc(100% - 3rem)); height: 100%; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-weight: 750; letter-spacing: -.025em; }
.brand-mark { width: 2rem; aspect-ratio: 1; display: grid; place-items: center; background: var(--ink); color: var(--paper); transform: rotate(45deg); border-radius: .2rem; }
.brand-mark span { font-size: .82rem; transform: rotate(-45deg); }
.primary-nav { position: absolute; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 2.2rem; }
.primary-nav a { color: var(--ink-soft); font-size: var(--step--1); font-weight: 650; position: relative; }
.primary-nav a::after { content:""; position:absolute; height:1px; inset:auto 100% -.4rem 0; background:var(--accent); transition:inset .25s var(--ease); }
.primary-nav a:hover::after, .primary-nav a.active::after { inset-right:0; }
.primary-nav a.active { color:var(--ink); }
.nav-actions { display:flex; align-items:center; gap:.5rem; }
.icon-button { width: 2.75rem; height: 2.75rem; display:grid; place-items:center; background:transparent; border:1px solid var(--line); border-radius:50%; cursor:pointer; transition: background .2s, transform .2s; }
.icon-button:hover { background:var(--paper-raised); transform:translateY(-2px); }
.icon-button svg { width:1.1rem; fill:none; stroke:currentColor; stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round; }
.moon-icon { display:none; }
body.dark .sun-icon { display:none; }
body.dark .moon-icon { display:block; }
.menu-toggle { display:none; gap:.28rem; align-content:center; }
.menu-toggle span { display:block; width:1rem; height:1px; background:currentColor; transition:.25s; }
.menu-toggle[aria-expanded="true"] span:first-child { transform:translateY(2.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform:translateY(-2.5px) rotate(-45deg); }
.mobile-nav { background:var(--paper); border-bottom:1px solid var(--line); padding:1rem 1.5rem 2rem; }
.mobile-nav a { display:flex; justify-content:space-between; padding:1rem 0; border-bottom:1px solid var(--line); font-size:var(--step-1); font-weight:650; }
.mobile-nav span { color:var(--accent); font-size:.7rem; }

.hero { min-height: max(720px,100svh); padding-top:var(--header-h); position:relative; overflow:hidden; display:grid; align-items:center; border-bottom:1px solid var(--line); }
.hero::before { content:""; position:absolute; inset:0; opacity:.35; pointer-events:none; background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px); background-size:80px 80px; mask-image:linear-gradient(to right,transparent,black 75%,transparent); }
.hero-grid { display:grid; grid-template-columns:1.15fr .85fr; align-items:center; gap:5vw; padding-block:5rem; }
.hero-copy { position:relative; z-index:2; }
.eyebrow { display:flex; align-items:center; gap:.65rem; margin:0 0 var(--space-6); color:var(--ink-soft); text-transform:uppercase; letter-spacing:.14em; font-weight:700; font-size:.67rem; }
.status-dot { width:.55rem; aspect-ratio:1; background:var(--success); border-radius:50%; box-shadow:0 0 0 .28rem color-mix(in srgb,var(--success) 18%,transparent); }
h1,h2,h3,p { margin-top:0; }
h1 { margin-bottom:var(--space-6); font-size:var(--step-5); letter-spacing:-.068em; line-height:.88; font-weight:700; }
h1 em,h2 em,.statement em { font-family:var(--font-display); color:var(--accent); font-weight:400; }
.hero-lede { max-width:37rem; color:var(--ink-soft); font-size:var(--step-1); line-height:1.52; letter-spacing:-.018em; }
.hero-actions { display:flex; align-items:center; gap:2rem; margin-top:var(--space-7); }
.button { display:inline-flex; align-items:center; justify-content:space-between; min-width:12rem; gap:1rem; padding:.9rem 1.15rem; border-radius:999px; font-size:var(--step--1); font-weight:700; transition:transform .2s,background .2s; }
.button:hover { transform:translateY(-3px); }
.button-primary { background:var(--ink); color:var(--paper); }
.button-primary span { width:1.8rem; aspect-ratio:1; border-radius:50%; background:var(--accent); color:#fff; display:grid; place-items:center; }
.text-link { display:inline-flex; align-items:center; gap:.6rem; font-weight:700; font-size:var(--step--1); border-bottom:1px solid var(--line); padding-bottom:.25rem; }
.text-link span { color:var(--accent); transition:transform .2s; }
.text-link:hover span { transform:translateX(4px); }
.hero-visual { width:108%; height:34rem; margin-left:-4%; position:relative; display:grid; place-items:center; }
.hero-visual::before { content:""; position:absolute; width:72%; height:62%; border-radius:50%; background:radial-gradient(circle,rgba(255,91,53,.12),transparent 68%); filter:blur(42px); }
.code-terminal { width:min(100%,34rem); position:relative; z-index:1; overflow:hidden; border:1px solid rgba(255,255,255,.12); border-radius:1.15rem; background:linear-gradient(145deg,rgba(30,32,39,.82),rgba(12,13,17,.9)); box-shadow:0 36px 90px rgba(0,0,0,.42),inset 0 1px rgba(255,255,255,.08); backdrop-filter:blur(24px) saturate(125%); transform:perspective(1100px) rotateY(-5deg) rotateX(2deg) rotateZ(1.25deg); animation:terminalFloat 6s var(--ease) infinite alternate; }
.terminal-bar { height:3rem; display:grid; grid-template-columns:1fr auto 1fr; align-items:center; padding:0 1rem; border-bottom:1px solid rgba(255,255,255,.08); color:#898d98; font-size:.62rem; }
.window-controls { display:flex; gap:.42rem; }
.window-controls i { width:.58rem; aspect-ratio:1; border-radius:50%; background:#4a4d55; }
.window-controls i:first-child { background:#ff7055; }.window-controls i:nth-child(2){background:#f5bd4f}.window-controls i:last-child{background:#5bc98a}
.terminal-title { letter-spacing:.03em; }.terminal-action { justify-self:end; padding:.22rem .45rem; border:1px solid rgba(255,255,255,.09); border-radius:.3rem; color:#777b85; }
.terminal-tabs { height:2.35rem; display:flex; background:rgba(0,0,0,.2); border-bottom:1px solid rgba(255,255,255,.07); }
.terminal-tab { min-width:9rem; display:flex; align-items:center; gap:.48rem; padding:0 .85rem; color:#737781; border-right:1px solid rgba(255,255,255,.06); font-size:.63rem; }
.terminal-tab.active { color:#d8d9dc; background:rgba(255,255,255,.035); box-shadow:inset 0 2px var(--accent); }
.terminal-tab b { color:#eacb65; font-size:.52rem; }.terminal-tab:nth-child(2) b{color:#6ca7e8}.terminal-tab i{margin-left:auto;font-style:normal;color:#686c75}
.terminal-body { padding:1.15rem 0 1.35rem; min-height:20rem; background:linear-gradient(90deg,rgba(255,255,255,.018) 3.2rem,transparent 3.2rem); }
.code-lines { margin:0; padding-left:3.15rem; color:#565b66; font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace; font-size:.74rem; line-height:1.72; }
.code-lines li { padding-left:1rem; }
.code-lines li::marker { color:#525660; font-size:.66rem; }
.code-lines code { color:#d7d9df; white-space:pre; }
.syntax-purple{color:#c792ea}.syntax-blue{color:#82aaff}.syntax-key{color:#f07178}.syntax-string{color:#c3e88d}.syntax-orange{color:#f78c6c}.syntax-muted{color:#7b8190}
.terminal-caret { display:inline-block; width:.42rem; height:1em; margin-left:.18rem; vertical-align:-.12em; background:var(--accent); animation:terminalBlink 1.05s steps(1) infinite; }
.terminal-status { height:2rem; padding:0 .85rem; display:flex; align-items:center; justify-content:space-between; gap:1rem; background:rgba(255,91,53,.88); color:#fff; font-size:.56rem; letter-spacing:.02em; }
.terminal-status span:first-child { display:flex; align-items:center; gap:.4rem; }.terminal-status i{width:.4rem;aspect-ratio:1;border:1px solid currentColor;border-radius:50%}
@keyframes terminalFloat { to { transform:perspective(1100px) rotateY(-2deg) rotateX(-1deg) rotateZ(-.35deg) translateY(-12px); } }
@keyframes terminalBlink { 50% { opacity:0; } }

.section { padding-block:var(--space-9); }
.section-grid { display:grid; grid-template-columns:minmax(10rem,1fr) 4fr; gap:var(--space-7); }
.section-meta { display:flex; gap:1rem; align-items:flex-start; text-transform:uppercase; letter-spacing:.14em; font-size:.65rem; color:var(--ink-soft); font-weight:700; }
.section-number { color:var(--accent); }
.statement { max-width:60rem; font-size:var(--step-4); line-height:1.08; letter-spacing:-.045em; font-weight:650; margin-bottom:var(--space-8); }
.about-details { display:grid; grid-template-columns:1fr 1fr; gap:var(--space-7); max-width:54rem; color:var(--ink-soft); }
.principles { display:grid; grid-template-columns:repeat(3,1fr); margin-top:var(--space-8); border-top:1px solid var(--line); }
.principles div { padding:var(--space-6) var(--space-5) 0 0; border-right:1px solid var(--line); }
.principles div+div { padding-left:var(--space-5); }
.principles div:last-child { border-right:0; }
.principles span { color:var(--accent); font-size:.65rem; }
.principles strong { display:block; margin:.8rem 0 .5rem; font-size:var(--step-0); }

.work { background:var(--paper-raised); border-block:1px solid var(--line); }
.section-heading { margin-bottom:var(--space-8); }
h2 { font-size:var(--step-4); line-height:1; letter-spacing:-.05em; margin-bottom:var(--space-5); }
.section-intro { max-width:40rem; color:var(--ink-soft); }
.work-list { display:grid; grid-template-columns:1.15fr .85fr; gap:1rem; }
.work-card { min-height:31rem; padding:var(--space-6); border:1px solid var(--line); border-radius:var(--radius-lg); position:relative; overflow:hidden; display:flex; flex-direction:column; background:var(--paper); transition:transform .35s var(--ease),box-shadow .35s,border-color .35s; }
a.work-card:hover { transform:translateY(-7px); box-shadow:var(--shadow); border-color:var(--accent); }
.work-index { font-size:.65rem; color:var(--accent); }
.work-card-copy { position:relative; z-index:2; margin-top:auto; max-width:28rem; }
.work-kicker { color:var(--ink-soft); text-transform:uppercase; letter-spacing:.14em; font-size:.6rem; font-weight:700; }
.work-card h3 { font-size:var(--step-2); line-height:1.1; letter-spacing:-.035em; margin-bottom:1rem; }
.work-card-copy>p:not(.work-kicker) { color:var(--ink-soft); font-size:var(--step--1); }
.work-art { position:absolute; width:14rem; height:15rem; right:2rem; top:2rem; }
.art-one { background:#111318; color:#fff; display:grid; place-items:center; transform:rotate(5deg); box-shadow:0 20px 40px rgba(0,0,0,.28); }
.art-one::before,.art-one::after { content:""; position:absolute; border:1px solid rgba(255,255,255,.18); border-radius:50%; }
.art-one::before { width:9rem; aspect-ratio:1; }.art-one::after { width:5rem; aspect-ratio:1; }
.art-one span { font-size:2rem; font-weight:800; letter-spacing:-.1em; z-index:2; }
.art-one i { position:absolute; width:5.5rem; height:1.2rem; background:var(--accent); transform:rotate(-35deg); }
.art-two { border:1px solid var(--line); background:linear-gradient(135deg,transparent 49.7%,var(--line) 50%,transparent 50.3%); }
.art-two::before { content:""; position:absolute; inset:18%; background:var(--accent); clip-path:polygon(50% 0,100% 100%,0 100%); opacity:.88; }
.art-two span { position:absolute; inset:38% 12% 12% 38%; border:1px solid var(--line); background:var(--paper); z-index:2; }
.card-arrow { position:absolute; right:1.5rem; bottom:1.5rem; width:2.5rem; aspect-ratio:1; background:var(--ink); color:var(--paper); border-radius:50%; display:grid; place-items:center; }
.coming-soon { position:absolute; top:1.5rem; right:1.5rem; background:color-mix(in srgb,var(--accent) 13%,transparent); color:var(--accent); border:1px solid color-mix(in srgb,var(--accent) 30%,transparent); padding:.3rem .65rem; border-radius:2rem; font-size:.6rem; text-transform:uppercase; letter-spacing:.08em; }
.github-note { margin-top:var(--space-7); padding-top:var(--space-6); border-top:1px solid var(--line); display:flex; justify-content:flex-end; align-items:center; }

.contact { background:var(--night); color:var(--white); }
.section-meta.light,.eyebrow.light { color:#a4a6ad; }
.contact-main h2 { font-size:var(--step-5); }
.contact-main>p:not(.eyebrow) { color:#a4a6ad; max-width:34rem; font-size:var(--step-1); }
.contact-grid { display:grid; grid-template-columns:1fr 1fr; margin-top:var(--space-8); border-top:1px solid var(--night-line); }
.contact-grid a,.contact-grid button { position:relative; display:grid; grid-template-columns:1fr auto; text-align:left; gap:.25rem 1rem; padding:1.4rem 0; border:0; border-bottom:1px solid var(--night-line); background:transparent; color:inherit; cursor:pointer; }
.contact-grid :nth-child(odd) { padding-right:1.5rem; border-right:1px solid var(--night-line); }
.contact-grid :nth-child(even) { padding-left:1.5rem; }
.contact-grid span { font-weight:700; }
.contact-grid small { color:#8c8f98; grid-row:2; }
.contact-grid b { grid-column:2; grid-row:1/3; align-self:center; color:var(--accent); font-size:1.25rem; transition:transform .2s; }
.contact-grid a:hover b,.contact-grid button:hover b { transform:translate(3px,-3px); }

footer { background:var(--night); color:var(--white); border-top:1px solid var(--night-line); padding-block:var(--space-7); }
.footer-inner { display:grid; grid-template-columns:1fr 1fr auto; align-items:start; gap:2rem; }
.footer-brand .brand-mark { background:var(--white); color:var(--night); }
.footer-inner p { color:#8c8f98; font-size:var(--step--1); line-height:1.5; }
.back-top { font-size:var(--step--1); border-bottom:1px solid var(--night-line); padding-bottom:.3rem; }
.back-top span { color:var(--accent); margin-left:.5rem; }
.footer-inner small { grid-column:1/-1; color:#686b73; padding-top:2rem; }

.toast { position:fixed; z-index:200; left:50%; bottom:1.5rem; transform:translate(-50%,calc(100% + 3rem)); display:flex; align-items:center; gap:1rem; padding:.75rem .8rem .75rem 1rem; background:var(--white); color:var(--night); border-radius:999px; box-shadow:0 16px 40px rgba(0,0,0,.3); font-size:.78rem; font-weight:700; transition:transform .35s var(--ease); }
.toast.show { transform:translate(-50%,0); }
.toast button { border:0; border-radius:50%; background:#e5e3dd; width:1.6rem; aspect-ratio:1; cursor:pointer; }

[data-reveal] { opacity:0; transform:translateY(25px); transition:opacity .75s var(--ease),transform .75s var(--ease); }
[data-reveal].revealed { opacity:1; transform:none; }

@media (max-width:900px) {
  :root { --space-9:5rem; }
  .primary-nav { display:none; }.menu-toggle { display:grid; }
  .hero-grid { grid-template-columns:1fr; padding-top:7rem; }
  .hero-visual { height:25rem; width:min(100%,33rem); justify-self:center; }
  .monolith { width:9rem; height:15rem; }
  .section-grid { grid-template-columns:1fr; gap:2rem; }
  .work-list { grid-template-columns:1fr; }
  .work-card { min-height:27rem; }
  .section-meta { border-bottom:1px solid var(--line); padding-bottom:1rem; }
  .light.section-meta { border-color:var(--night-line); }
}
@media (max-width:768px) {
  .hero-visual { display:none; }
}
@media (max-width:620px) {
  :root { --header-h:4.5rem; --space-9:4rem; }
  .container,.nav-shell { width:min(100% - 2rem,1180px); }
  .brand-name { font-size:.9rem; }
  .hero { min-height:auto; }
  .hero-grid { padding-block:6rem 4rem; }
  .hero-lede { font-size:1rem; }
  .hero-actions { align-items:flex-start; flex-direction:column; gap:1.25rem; }
  .hero-visual { display:none; }
  .scroll-cue { display:none; }
  .about-details,.principles,.contact-grid { grid-template-columns:1fr; }
  .about-details { gap:1rem; }
  .principles div,.principles div+div { border-right:0; border-bottom:1px solid var(--line); padding:1.5rem 0; }
  .work-card { min-height:31rem; padding:1.25rem; }
  .work-art { width:11rem; height:12rem; right:1.25rem; top:3.5rem; }
  .contact-grid :nth-child(odd),.contact-grid :nth-child(even) { padding:1.2rem 0; border-right:0; }
  .footer-inner { grid-template-columns:1fr auto; }
  .footer-inner p { grid-column:1/-1; grid-row:2; }
}
@media (prefers-reduced-motion:reduce) {
  html { scroll-behavior:auto; }
  *,*::before,*::after { animation-duration:.01ms!important; animation-iteration-count:1!important; transition-duration:.01ms!important; }
  [data-reveal] { opacity:1; transform:none; }
}