/* ==========================================================================
   dhole.dev design system
   One stylesheet for the whole site: homepage, projects, demos, and shop.
   Monospace for structure and labels (it suits a hardware/dev site), a
   humanist sans for anything you actually have to read at length.
   ========================================================================== */

:root {
  /* Surfaces, darkest to lightest */
  --bg:        #0b0d12;
  --bg-soft:   #10131a;
  --surface:   #161a23;
  --surface-2: #1e232e;
  --border:    #2a3040;
  --border-lit:#3b4459;

  /* Text */
  --fg:        #e6e9ef;
  --fg-muted:  #98a1b3;
  --fg-dim:    #6b7488;

  /* Accents */
  --accent:      #8b5cf6;
  --accent-lit:  #a78bfa;
  --accent-dim:  #6d3fd4;
  --cyan:        #22d3ee;
  --amber:       #fbbf24;
  --good:        #34d399;
  --bad:         #f87171;

  --radius:    10px;
  --radius-lg: 16px;
  --maxw:      1140px;

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.3);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

/* Anything that scrolls sideways does it inside its own box, never the page. */
body { overflow-x: hidden; }

a { color: var(--accent-lit); }

h1, h2, h3, h4 {
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- site header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,13,18,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 60px;
}

.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.brand .dot { color: var(--accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.875rem;
}

.site-nav a {
  color: var(--fg-muted);
  text-decoration: none;
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
  white-space: nowrap;
}

.site-nav a:hover { color: var(--fg); }
.site-nav a[aria-current="page"] {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

.cart-link { position: relative; display: inline-flex; align-items: center; gap: .4rem; }

.cart-badge {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 1.2rem;
  height: 1.2rem;
  padding: 0 .35rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  line-height: 1;
}

/* Mobile: let the nav scroll rather than wrap into a mess. */
@media (max-width: 700px) {
  .site-header .wrap { gap: .75rem; }
  .site-nav { gap: .9rem; overflow-x: auto; scrollbar-width: none; }
  .site-nav::-webkit-scrollbar { display: none; }
}

/* ---------- layout ---------- */

main { padding: 3rem 0 5rem; }

.section { margin-bottom: 4.5rem; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.section-head h2 { font-size: 1.4rem; }

.section-head .more {
  margin-left: auto;
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--fg-muted);
  text-decoration: none;
}
.section-head .more:hover { color: var(--accent-lit); }

.eyebrow {
  font-family: var(--mono);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--accent-lit);
  margin-bottom: .75rem;
}

.lede { color: var(--fg-muted); font-size: 1.05rem; max-width: 60ch; }

/* ---------- hero ---------- */

.hero {
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

/* Soft glow behind the hero. Pure decoration, so it is hidden from AT. */
.hero::before {
  content: "";
  position: absolute;
  top: -30%; left: 50%;
  width: 700px; height: 700px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(139,92,246,.16), transparent 62%);
  pointer-events: none;
}

.hero .wrap { position: relative; }

.hero h1 {
  font-size: clamp(2.1rem, 6vw, 3.4rem);
  margin-bottom: 1rem;
  max-width: 18ch;
}

.hero h1 .grad {
  background: linear-gradient(100deg, var(--accent-lit), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p { color: var(--fg-muted); font-size: 1.1rem; max-width: 56ch; }

.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 2rem; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .7rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-lit);
  background: var(--surface);
  color: var(--fg);
  font-family: var(--mono);
  font-size: .9rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s, background .15s, transform .05s;
}

.btn:hover:not(:disabled) { border-color: var(--accent); background: var(--surface-2); }
.btn:active:not(:disabled) { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-lit); border-color: var(--accent-lit); }

.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-block { width: 100%; }
.btn-sm { padding: .45rem .8rem; font-size: .8rem; }

/* ---------- cards ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color .15s, transform .15s;
}

.card:hover { border-color: var(--border-lit); }

.grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

/* ---------- tags / chips ---------- */

.chips { display: flex; gap: .4rem; flex-wrap: wrap; }

.chip {
  font-family: var(--mono);
  font-size: .7rem;
  padding: .2rem .55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--fg-muted);
  white-space: nowrap;
}

.chip-accent { border-color: var(--accent-dim); color: var(--accent-lit); }
.chip-live   { border-color: var(--good); color: var(--good); }

/* ---------- status text ---------- */

.status { font-family: var(--mono); font-size: .8rem; }
.status.in   { color: var(--good); }
.status.low  { color: var(--amber); }
.status.out  { color: var(--bad); }

/* ---------- notices ---------- */

.notice {
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: var(--radius);
  background: var(--surface);
  padding: .9rem 1.1rem;
  margin-bottom: 1.25rem;
  font-size: .92rem;
}

.notice.warn    { border-left-color: var(--amber); }
.notice.error   { border-left-color: var(--bad); }
.notice.success { border-left-color: var(--good); }
.notice.info    { border-left-color: var(--accent); }

/* ---------- forms ---------- */

input, select, textarea {
  font-family: inherit;
  font-size: .9rem;
  padding: .55rem .7rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--fg);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

label { font-family: var(--mono); font-size: .78rem; color: var(--fg-muted); }

/* Keyboard users must always be able to see where they are. */
:focus-visible { outline: 2px solid var(--accent-lit); outline-offset: 2px; }

/* ---------- empty state ---------- */

.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--fg-muted);
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  color: var(--fg-dim);
  font-size: .85rem;
}

.site-footer .wrap {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.site-footer nav { margin-left: auto; display: flex; gap: 1.25rem; flex-wrap: wrap; }
.site-footer a { color: var(--fg-muted); text-decoration: none; font-family: var(--mono); }
.site-footer a:hover { color: var(--accent-lit); }

/* ---------- utilities ---------- */

.mono { font-family: var(--mono); }
.muted { color: var(--fg-muted); }
.dim { color: var(--fg-dim); font-size: .85rem; }
.center { text-align: center; }

.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;
}

/* Respect a reduced-motion preference across the whole site. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}