/* ==========================================================================
   CYBERCLYPH — portfolio
   Two themes, one variable set. Static, no external assets.
   ========================================================================== */

:root {
  --bg: #0b0f10;
  --bg-2: #0e1415;
  --panel: #111819;
  --panel-2: #151d1e;
  --line: #202b2c;
  --line-soft: #182122;
  --ink: #eef2ea;
  --ink-2: #a8b3ac;
  --ink-3: #7f8c85;
  --acid: #b9e35f;
  --acid-dim: #8fbf3c;
  --amber: #e0a458;
  --shadow: 0 30px 80px -44px rgba(0, 0, 0, .9);

  --display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --sans: "Segoe UI Variable Text", "Segoe UI", -apple-system, BlinkMacSystemFont, Inter, Roboto, sans-serif;
  --mono: "Cascadia Mono", "Cascadia Code", Consolas, ui-monospace, monospace;

  --r: 16px;
  --wrap: 1160px;
}

[data-theme="paper"] {
  --bg: #f6f3e9;
  --bg-2: #efeadc;
  --panel: #fffdf6;
  --panel-2: #f4f0e2;
  --line: #d9d2bf;
  --line-soft: #e6dfcd;
  --ink: #171d19;
  --ink-2: #4d574f;
  --ink-3: #6f7a71;
  --acid: #4c7a12;
  --acid-dim: #3c610d;
  --amber: #a3641c;
  --shadow: 0 24px 60px -40px rgba(50, 40, 20, .45);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--acid); color: #0b0f10; }

a { color: inherit; text-decoration-color: color-mix(in srgb, var(--acid) 60%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--acid); }

h1, h2, h3 { font-family: var(--display); font-weight: 600; letter-spacing: -.02em; margin: 0; }
p { margin: 0; }

.wrap { width: min(var(--wrap), calc(100% - 48px)); margin-inline: auto; }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 30;
  padding: 10px 14px; background: var(--acid); color: #0b0f10; font-weight: 600;
}
.skip:focus { left: 12px; top: 12px; }

/* ------------------------------------------------------------------ header */
.bar {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.bar-in { display: flex; align-items: center; gap: 22px; height: 62px; }
.mark {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: 13.5px; letter-spacing: .04em;
  text-decoration: none; color: var(--ink);
}
.mark em { font-style: normal; color: var(--acid); }
.mark-glyph {
  width: 15px; height: 15px; border-radius: 4px;
  background:
    radial-gradient(circle at 70% 46%, var(--acid) 0 28%, transparent 29%),
    linear-gradient(90deg, transparent 0 32%, var(--acid) 32% 46%, transparent 46%),
    var(--panel-2);
  border: 1px solid var(--line);
}
.bar nav { display: flex; gap: 20px; margin-left: auto; }
.bar nav a {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .09em; text-transform: uppercase;
  color: var(--ink-3); text-decoration: none;
}
.bar nav a:hover { color: var(--ink); }

.icon-btn {
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 9px;
  background: var(--panel); color: var(--ink-2); cursor: pointer;
  transition: color .15s, border-color .15s;
}
.icon-btn:hover { color: var(--ink); border-color: var(--ink-3); }
.icon-btn svg { width: 15px; height: 15px; }
.icon-btn:focus-visible, a:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--acid); outline-offset: 3px; border-radius: 4px;
}

/* -------------------------------------------------------------------- hero */
.hero { padding: 84px 0 60px; }
.eyebrow {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink-3);
}
.eyebrow:before { content: ""; width: 26px; height: 1px; background: var(--acid); }
.eyebrow span:first-child { color: var(--acid); }
.eyebrow .dot { color: var(--ink-3); }

.hero h1 {
  margin: 26px 0 0;
  font-size: clamp(46px, 8.2vw, 104px);
  line-height: .92;
  letter-spacing: -.035em;
}
.hero h1 em { font-style: italic; color: var(--acid); }
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
  gap: 44px; margin-top: 38px; align-items: start;
}
.lede { font-size: clamp(16px, 1.5vw, 18.5px); color: var(--ink-2); max-width: 62ch; }

.hero-index { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.hero-index li {
  display: flex; align-items: baseline; gap: 12px;
  padding-bottom: 8px; border-bottom: 1px solid var(--line-soft);
  font-size: 13.5px; color: var(--ink-2);
}
.hero-index li span { font-family: var(--mono); font-size: 10.5px; color: var(--acid); }

/* -------------------------------------------------------------------- work */
.work { padding: 20px 0 40px; }
.section-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 18px;
  padding-bottom: 14px; border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}
.section-head h2 { font-size: clamp(26px, 3.4vw, 34px); }
.meta { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }

.feature {
  display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr);
  gap: 30px; align-items: stretch;
  padding: 30px; border: 1px solid var(--line); border-radius: var(--r);
  background:
    radial-gradient(120% 130% at 0% 0%, color-mix(in srgb, var(--acid) 8%, transparent), transparent 58%),
    var(--panel);
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.kicker { font-family: var(--mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--acid); }
.feature h3 { font-size: clamp(30px, 4vw, 42px); margin: 8px 0 12px; }
.desc { color: var(--ink-2); font-size: 14.5px; max-width: 68ch; }

.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 0; padding: 0; }
.tags li {
  padding: 3px 8px; border: 1px solid var(--line); border-radius: 5px;
  background: var(--bg-2); color: var(--ink-3);
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .07em; text-transform: uppercase;
}

.links { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-top: 22px; font-size: 13.5px; }
.links a { color: var(--ink-2); }
.links a:hover { color: var(--acid); }
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  height: 36px; padding: 0 15px; border-radius: 8px;
  background: var(--acid); color: #0b0f10 !important;
  font-weight: 600; font-size: 13px; text-decoration: none;
  transition: transform .14s, background .14s;
}
[data-theme="paper"] .btn { color: #fffdf6 !important; }
.btn:hover { background: color-mix(in srgb, var(--acid) 82%, #000); transform: translateY(-1px); }
.btn.ghost {
  background: transparent; color: var(--ink-2) !important;
  border: 1px solid var(--line);
}
.btn.ghost:hover { color: var(--ink) !important; border-color: var(--ink-3); }
.sep { color: var(--ink-3); }

.feature-aside { display: flex; flex-direction: column; justify-content: flex-end; gap: 12px; }
.specimen {
  display: flex; align-items: flex-end; gap: 7px;
  height: 190px; padding: 16px; border-radius: 10px;
  border: 1px solid var(--line-soft);
  background:
    linear-gradient(180deg, transparent, color-mix(in srgb, var(--acid) 6%, transparent)),
    var(--bg-2);
}
.sp-bar {
  flex: 1; height: var(--h); border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, var(--acid), color-mix(in srgb, var(--acid) 22%, var(--panel)));
  opacity: .9;
}
.sp-bar:nth-child(2n) { opacity: .62; }
.specimen-cap { font-family: var(--mono); font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 18px; }
.card {
  display: flex; flex-direction: column;
  padding: 24px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--panel);
  transition: border-color .18s, transform .18s, background .18s;
}
.card:hover { border-color: color-mix(in srgb, var(--acid) 45%, var(--line)); transform: translateY(-2px); }
.card h3 { font-size: 25px; margin: 6px 0 9px; }
.card .desc { font-size: 13.5px; }
.card .links { margin-top: auto; padding-top: 18px; }

/* ------------------------------------------------------------------- about */
.about { padding: 56px 0 20px; }
.about-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 44px; }
.about-copy { display: grid; gap: 16px; font-size: 15.5px; color: var(--ink-2); max-width: 66ch; }
.about-facts { margin: 0; display: grid; gap: 0; }
.about-facts > div {
  display: flex; justify-content: space-between; align-items: baseline; gap: 18px;
  padding: 10px 0; border-bottom: 1px solid var(--line-soft);
}
.about-facts > div:first-child { border-top: 1px solid var(--line-soft); }
.about-facts dt { font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.about-facts dd { margin: 0; font-size: 13px; color: var(--ink); text-align: right; }

/* ----------------------------------------------------------------- contact */
.contact { padding: 56px 0 84px; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 44px; }
.contact-lede { font-family: var(--display); font-size: clamp(22px, 2.6vw, 30px); line-height: 1.25; letter-spacing: -.01em; max-width: 24ch; }
.contact-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.contact-links li {
  display: flex; align-items: baseline; justify-content: space-between; gap: 20px;
  padding: 12px 0; border-bottom: 1px solid var(--line-soft);
}
.contact-links li:first-child { border-top: 1px solid var(--line-soft); }
.contact-links span { font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.contact-links a { font-size: 13.5px; color: var(--ink-2); }

/* ------------------------------------------------------------------ footer */
.foot { border-top: 1px solid var(--line-soft); }
.foot-in {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  padding: 24px 0 34px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .05em; color: var(--ink-3);
}

/* --------------------------------------------------------------- reveal */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .card, .btn { transition: none; }
}

/* ------------------------------------------------------------- responsive */
@media (max-width: 900px) {
  .hero { padding: 60px 0 40px; }
  .hero-grid, .about-grid, .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .feature { grid-template-columns: minmax(0, 1fr); padding: 24px; }
  .feature-aside { order: -1; }
  .specimen { height: 120px; }
  .cards { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 620px) {
  .wrap { width: calc(100% - 32px); }
  .bar-in { height: 56px; gap: 12px; }
  .bar nav { gap: 14px; }
  .bar nav a { font-size: 10.5px; }
  .hero h1 { font-size: clamp(38px, 12vw, 54px); }
  .section-head { flex-direction: column; align-items: flex-start; gap: 4px; }
  .contact-links li { flex-direction: column; gap: 2px; align-items: flex-start; }
  .contact-links a { word-break: break-word; }
}

@media print {
  .bar, .foot { display: none; }
  body { background: #fff; color: #111; }
  .card, .feature { break-inside: avoid; border-color: #ddd; }
  .reveal { opacity: 1; transform: none; }
}