/* Vexx Audio site styles.
   Palette and type come from DESIGN.md §1 and §2. The 1.25 type scale is anchored at
   16 px for the web; 12 px is the print and plugin-UI size, not a body size here.
   No frameworks, no JS, no external requests. */

@font-face {
  font-family: "Orbitron";
  src: url("fonts/Orbitron-600.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Orbitron";
  src: url("fonts/Orbitron-700.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Rajdhani";
  src: url("fonts/Rajdhani-500.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Colour tokens, light theme. Nothing outside this list. */
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f3f4f6;
  --ink: #2e3338;
  --muted: #6b7280;
  --accent: #7b1e3a;
  --accent-on: #ffffff;
  --accent-hover: #5f172d;
  --detail: #ffc94a;
  --border: #e5e7eb;
  --row-alt: #f9fafb;

  /* 8-point spacing. */
  --s1: 4px;
  --s2: 8px;
  --s3: 16px;
  --s4: 24px;
  --s5: 32px;
  --s6: 48px;
  --s7: 64px;
  --s8: 96px;

  /* 1.25 type scale, anchored at 16 px. */
  --t1: 1rem;
  --t2: 1.25rem;
  --t3: 1.5625rem;
  --t4: 1.953rem;
  --t5: 2.441rem;

  --measure: 68ch;
  --wrap: 1120px;
}

/* Dark theme. Same structure, measured contrast in DESIGN.md §1-quater.
   Applied when the OS asks for it (no JS) or when the toggle sets data-theme. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0b0c0f;
    --surface: #14161b;
    --ink: #e8e4da;
    --muted: #a6acb4;
    --accent: #d9627f;
    --accent-on: #0b0c0f;
    --accent-hover: #e26a86;
    --detail: #ffc94a;
    --border: #262a31;
    --row-alt: #101216;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0c0f;
  --surface: #14161b;
  --ink: #e8e4da;
  --muted: #a6acb4;
  --accent: #d9627f;
  --accent-on: #0b0c0f;
  --accent-hover: #e26a86;
  --detail: #ffc94a;
  --border: #262a31;
  --row-alt: #101216;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Rajdhani", "Helvetica Neue", Arial, sans-serif;
  font-weight: 500;
  font-size: 1.0625rem;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

h1,
h2 {
  font-family: "Orbitron", "Helvetica Neue", Arial, sans-serif;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0.01em;
  margin: 0 0 var(--s4);
}

h1 {
  font-size: clamp(2rem, 5.4vw, 3.25rem);
  text-wrap: balance;
}

h2 {
  font-size: var(--t3);
  text-wrap: balance;
}

h3 {
  font-family: "Orbitron", "Helvetica Neue", Arial, sans-serif;
  font-weight: 600;
  font-size: var(--t2);
  line-height: 1.2;
  letter-spacing: 0.01em;
  margin: var(--s6) 0 var(--s3);
  text-wrap: balance;
}

p {
  margin: 0 0 var(--s4);
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.875em;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1px 5px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--s4);
}

.measure {
  max-width: var(--measure);
}

.small {
  font-size: 0.9375rem;
  color: var(--muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: var(--s2) var(--s3);
  z-index: 10;
}

.skip:focus {
  left: var(--s3);
}

/* Theme toggle */

.theme-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
  cursor: pointer;
}

html.js .theme-toggle {
  display: inline-flex;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle .icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

/* Header */

.site-head {
  border-bottom: 1px solid var(--border);
}

.head-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  min-height: 72px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--s3);
  text-decoration: none;
  color: var(--ink);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: "Orbitron", sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.14em;
}

.brand-sub {
  font-size: 0.8125rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  gap: var(--s4);
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  padding-block: var(--s2);
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Hero */

.hero {
  padding-top: var(--s8);
  padding-bottom: var(--s7);
}

.hero h1 {
  max-width: 20ch;
}

.lead {
  font-size: var(--t2);
  line-height: 1.5;
  max-width: 46ch;
  color: var(--ink);
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: var(--s4);
  flex-wrap: wrap;
  margin-top: var(--s6);
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-on);
  text-decoration: none;
  font-family: "Orbitron", sans-serif;
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px var(--s4);
  border: 1px solid var(--accent);
}

.btn:hover,
.btn:focus-visible {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-on);
}

.link-quiet {
  font-size: 0.9375rem;
}

/* Figures */

.plate {
  margin: var(--s6) 0 0;
  border: 1px solid var(--border);
  background: var(--surface);
}

.plate figcaption {
  padding: var(--s2) var(--s3) var(--s3);
  font-size: 0.9375rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* Why */

.why {
  padding-top: var(--s6);
  padding-bottom: var(--s5);
  border-top: 1px solid var(--border);
}

.pull {
  margin-top: var(--s5);
  font-family: "Orbitron", sans-serif;
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

/* Eyebrow: small attribution line above a page title, no pill, no dot. */

.eyebrow {
  margin-bottom: var(--s3);
  font-family: "Orbitron", sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Product card on the home page */

.products {
  margin-top: var(--s5);
}

.card {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--s5);
  align-items: start;
  padding-top: var(--s5);
  border-top: 1px solid var(--border);
}

.card > img {
  border: 1px solid var(--border);
  background: var(--surface);
}

.card h3 {
  margin: 0 0 var(--s2);
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: var(--t2);
  line-height: 1.15;
}

.card p {
  max-width: 56ch;
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s4);
}

/* Product */

.product {
  padding-top: var(--s7);
  padding-bottom: var(--s6);
  border-top: 2px solid var(--accent);
}

.specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s5) var(--s4);
  margin: var(--s6) 0 0;
  padding-top: var(--s4);
  border-top: 1px solid var(--border);
}

.specs div {
  margin: 0;
}

.specs dt {
  font-family: "Orbitron", sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--s1);
}

.specs dd {
  margin: 0;
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: var(--t3);
}

.specs dd span {
  font-family: "Rajdhani", sans-serif;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* Modules table */

#modules {
  padding-top: var(--s6);
  padding-bottom: var(--s7);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--s5);
  font-size: 0.9375rem;
}

caption {
  text-align: left;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: var(--s3);
  border-bottom: 1px solid var(--border);
}

thead th {
  font-family: "Orbitron", sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--ink);
}

tbody th {
  font-family: "Orbitron", sans-serif;
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

tbody tr:nth-child(even) {
  background: var(--row-alt);
}

/* Interface split: 38 text / 62 figure */

.split {
  display: grid;
  grid-template-columns: 38fr 62fr;
  gap: var(--s6);
  align-items: start;
  padding-top: var(--s6);
  padding-bottom: var(--s7);
  border-top: 1px solid var(--border);
}

.split-text {
  padding-top: var(--s2);
}

.split-figure {
  margin: 0;
}

/* Status */

.state {
  padding-top: var(--s6);
  padding-bottom: var(--s7);
  border-top: 1px solid var(--border);
}

/* Build */

.build {
  padding-top: var(--s6);
  padding-bottom: var(--s8);
  border-top: 1px solid var(--border);
}

pre {
  margin: var(--s5) 0 var(--s4);
  padding: var(--s4);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.7;
}

pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: inherit;
}

/* Footer */

.site-foot {
  border-top: 1px solid var(--border);
  padding-block: var(--s5);
}

.foot-inner p {
  margin: 0 0 var(--s2);
  font-size: 0.9375rem;
}

.foot-inner p:last-child {
  margin-bottom: 0;
}

/* Narrow screens */

@media (max-width: 820px) {
  .split {
    grid-template-columns: 1fr;
    gap: var(--s5);
  }

  .split-figure {
    order: -1;
  }

  .specs {
    grid-template-columns: repeat(2, 1fr);
  }

  .card {
    grid-template-columns: 1fr;
    gap: var(--s3);
  }

  .card > img {
    max-width: 420px;
  }

  .hero {
    padding-top: var(--s6);
    padding-bottom: var(--s6);
  }

  .lead {
    font-size: 1.125rem;
  }

  th,
  td {
    padding: var(--s2);
  }

  tbody th {
    white-space: normal;
  }
}

@media (max-width: 620px) {
  table {
    font-size: 0.875rem;
  }

  thead th {
    font-size: 0.6875rem;
  }

  tbody th {
    font-size: 0.75rem;
  }

  th,
  td {
    padding: var(--s2);
  }
}

@media (max-width: 420px) {
  .specs {
    grid-template-columns: 1fr;
    gap: var(--s4);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}