/* =========================================================
   Fonts — Monaspace variable, self-hosted
   Pinned to githubnext/monaspace v1.400
   Source: https://github.com/githubnext/monaspace
   License: SIL Open Font License 1.1
   ========================================================= */
@font-face {
  font-family: "Monaspace Neon";
  src: url("/fonts/MonaspaceNeonVar.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Monaspace Xenon";
  src: url("/fonts/MonaspaceXenonVar.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* =========================================================
   Tokens — design system as CSS custom properties
   (CUBE CSS leans on tokens at the root)
   ========================================================= */
:root {
  /* Color */
  --color-bg:           #0d1117;
  --color-surface:      #161b22;
  --color-surface-2:    #1c2230;
  --color-border:       #262d3a;
  --color-border-soft:  #1d2330;
  --color-text:         #e6edf3;
  --color-text-muted:   #8b96a6;
  --color-text-faint:   #5e6877;
  --color-primary:      #ff7b3a;   /* orange */
  --color-primary-soft: #ff9b66;
  --color-secondary:    #58a6ff;   /* blue */
  --color-secondary-soft:#7cc0ff;

  /* Spacing — modular scale */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs:  0.75rem;
  --space-s:   1rem;
  --space-m:   1.5rem;
  --space-l:   2rem;
  --space-xl:  2.75rem;
  --space-2xl: 3.5rem;
  --space-3xl: 5rem;

  /* Type scale */
  --text-xs:   0.8125rem;
  --text-s:    0.9375rem;
  --text-base: 1.0625rem;
  --text-m:    1.1875rem;
  --text-l:    1.375rem;
  --text-xl:   1.75rem;
  --text-2xl:  2.25rem;
  --text-3xl:  3rem;
  --text-4xl:  clamp(2.5rem, 6vw + 1rem, 4.5rem);

  /* Layout */
  --measure:  72ch;
  --measure-wide: 90ch;
  --radius:   6px;
  --radius-l: 12px;

  /* Type families */
  --font-body:    "Monaspace Neon", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --font-heading: "Monaspace Xenon", "Monaspace Neon", ui-monospace, "SF Mono", Menlo, monospace;
}

/* =========================================================
   Reset / base
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  font-feature-settings: "calt", "liga", "ss01";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Subtle background texture from a radial gradient — no images */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 40% at 20% 0%, rgba(255, 123, 58, 0.06), transparent 60%),
    radial-gradient(ellipse 50% 40% at 90% 100%, rgba(88, 166, 255, 0.05), transparent 60%);
  z-index: -1;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: var(--text-4xl); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-l); }

p { margin: 0; max-inline-size: var(--measure); }
a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
  text-decoration-color: color-mix(in oklab, var(--color-primary) 50%, transparent);
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
a:hover {
  color: var(--color-primary-soft);
  text-decoration-color: var(--color-primary-soft);
}
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

ul { margin: 0; padding: 0; list-style: none; }

code {
  font-family: var(--font-body);
  font-size: 0.95em;
  color: var(--color-secondary-soft);
  background: var(--color-surface-2);
  padding: 0.1em 0.4em;
  border-radius: 3px;
}

em { font-style: italic; color: var(--color-primary-soft); }

::selection {
  background: color-mix(in oklab, var(--color-primary) 35%, transparent);
  color: var(--color-text);
}

/* =========================================================
   COMPOSITION — Every Layout primitives
   ========================================================= */

/* Stack — vertical rhythm */
.stack { display: flex; flex-direction: column; justify-content: flex-start; }
.stack > * { margin-block: 0; }
.stack > * + * { margin-block-start: var(--stack-space, var(--space-m)); }
.stack-s  { --stack-space: var(--space-s); }
.stack-m  { --stack-space: var(--space-m); }
.stack-l  { --stack-space: var(--space-l); }
.stack-xl { --stack-space: var(--space-xl); }

/* Center — horizontal centering with max measure */
.center {
  box-sizing: content-box;
  margin-inline: auto;
  max-inline-size: var(--measure-wide);
  padding-inline: var(--space-m);
}
.center-wide { max-inline-size: 72rem; }

/* Box — padded surface */
.box {
  padding: var(--box-padding, var(--space-m));
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

/* Cluster — wrapping inline group */
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--cluster-space, var(--space-s));
  align-items: center;
}

/* Grid — auto-fit responsive grid */
.grid {
  display: grid;
  gap: var(--space-m);
  grid-template-columns: repeat(auto-fit, minmax(min(20rem, 100%), 1fr));
}

/* Switcher — row that becomes column at narrow widths */
.switcher {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-l);
}
.switcher > * {
  flex-grow: 1;
  flex-basis: calc((34rem - 100%) * 999);
}

/* Cover — hero that fills viewport height */
.cover {
  display: flex;
  flex-direction: column;
  min-block-size: clamp(20rem, 60vh, 36rem);
  padding-block: var(--space-xl) var(--space-l);
}
.cover > .cover-centered { margin-block: auto; }

/* =========================================================
   UTILITIES — single-purpose helpers
   ========================================================= */
.u-text-primary    { color: var(--color-primary); }
.u-text-secondary  { color: var(--color-secondary); }
.u-text-muted      { color: var(--color-text-muted); }
.u-text-faint      { color: var(--color-text-faint); }

.u-text-xs   { font-size: var(--text-xs); }
.u-text-s    { font-size: var(--text-s); }
.u-text-m    { font-size: var(--text-m); }
.u-text-l    { font-size: var(--text-l); }

.u-font-heading { font-family: var(--font-heading); }
.u-uppercase    { text-transform: uppercase; letter-spacing: 0.12em; }
.u-measure      { max-inline-size: var(--measure); }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* =========================================================
   BLOCKS — components
   ========================================================= */

/* Section heading: numbered marker + title */
.section-title {
  display: flex;
  align-items: baseline;
  gap: var(--space-s);
  font-size: var(--text-xl);
  inline-size: 100%;
}
.section-title::before {
  content: attr(data-num);
  color: var(--color-secondary);
  font-size: var(--text-s);
  font-weight: 500;
  letter-spacing: 0.08em;
}
.section-title::after {
  content: "";
  flex: 1;
  block-size: 1px;
  background: var(--color-border);
  margin-inline-start: var(--space-s);
}

/* Hero */
.hero-eyebrow {
  color: var(--color-secondary);
  font-size: var(--text-s);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.hero-name {
  color: var(--color-text);
}
.hero-name .accent { color: var(--color-primary); }
.hero-tagline {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.4vw + 0.5rem, 1.75rem);
  color: var(--color-text);
  max-inline-size: 38ch;
  line-height: 1.35;
  text-wrap: balance;
}
.hero-locator {
  color: var(--color-text-muted);
  font-size: var(--text-s);
  text-wrap: balance;
  max-inline-size: none;
}
.hero-locator .dot { color: var(--color-primary); }
.hero-locator .phrase { white-space: nowrap; }

/* Project / influence card */
.card { --box-padding: var(--space-l); }
.card h3 { color: var(--color-text); }
.card .card-meta {
  color: var(--color-secondary);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.card p {
  color: var(--color-text-muted);
  font-size: var(--text-s);
}
.card .tags {
  --cluster-space: var(--space-2xs);
}
.card .tag {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  padding: 0.15em 0.55em;
  border: 1px solid var(--color-border);
  border-radius: 999px;
}

/* Principle list — large declarative statements */
.principles { --stack-space: var(--space-m); }
.principles li {
  font-family: var(--font-heading);
  font-size: var(--text-l);
  color: var(--color-text);
  line-height: 1.4;
  padding-inline-start: var(--space-m);
  border-inline-start: 2px solid var(--color-primary);
  max-inline-size: var(--measure);
}
.principles li strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* Influence list — name + reason */
.influences { --stack-space: var(--space-m); }
.influences li {
  display: grid;
  grid-template-columns: minmax(0, 14rem) minmax(0, 1fr);
  gap: var(--space-m);
  padding-block: var(--space-s);
  border-block-start: 1px solid var(--color-border-soft);
}
.influences li:first-child { border-block-start: 0; padding-block-start: 0; }
.influences .name {
  font-family: var(--font-heading);
  color: var(--color-text);
  font-size: var(--text-m);
}
.influences .name a { color: inherit; text-decoration-color: var(--color-border); }
.influences .name a:hover { color: var(--color-primary); text-decoration-color: var(--color-primary); }
.influences .why {
  color: var(--color-text-muted);
  font-size: var(--text-s);
  max-inline-size: var(--measure);
}
@media (max-width: 38rem) {
  .influences li { grid-template-columns: 1fr; gap: var(--space-2xs); }
}

/* Footer */
.site-footer {
  margin-block-start: var(--space-3xl);
  padding-block: var(--space-xl);
  border-block-start: 1px solid var(--color-border);
}
.site-footer .colophon {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  max-inline-size: none;
}
.site-footer .colophon a { color: var(--color-text-muted); }

/* =========================================================
   EXCEPTIONS — variations from blocks
   ========================================================= */
.section-title[data-num="00"]::before { color: var(--color-primary); }

/* Section spacing between major blocks */
main > section + section,
main > header + section {
  margin-block-start: var(--space-2xl);
}