/* Granwel Technologies LTD — corporate site
   Restrained industrial identity: deep void surfaces, structural borders,
   monospaced metadata. No external fonts, no trackers, no JavaScript. */

:root {
  --bg: #05070b;
  --surface: #0b0f17;
  --elevated: #111726;
  --border: #1e293b;
  --border-subtle: #151d2c;
  --text: #f8fafc;
  --muted: #94a3b8;
  --subtle: #64748b;
  --accent: #38bdf8;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  background-color: var(--bg);
  color: var(--text);
  color-scheme: dark;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

::selection {
  background-color: #334155;
  color: var(--text);
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(5, 7, 11, 0.92);
}

.site-header__inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
}

.site-header__brand:hover {
  text-decoration: none;
}

.site-header__logo {
  height: 2rem;
  width: auto;
  display: block;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-header__nav a {
  padding: 0.5rem 0.875rem;
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 2px;
}

.site-header__nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.site-header__nav a[aria-current="page"] {
  color: var(--text);
  background: rgba(15, 23, 42, 0.9);
  border-color: var(--border);
}

/* ---------- Layout ---------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--text);
  color: var(--bg);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.75rem;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.page {
  flex-grow: 1;
  width: 100%;
}

.container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  border-bottom: 1px solid var(--border);
  background:
    linear-gradient(rgba(30, 41, 59, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 41, 59, 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  padding: 6rem 0 7rem;
}

.hero__label {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 1.75rem;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
  max-width: 18ch;
}

.hero__lede {
  margin-top: 1.5rem;
  max-width: 40rem;
  font-size: 1.0625rem;
  color: var(--muted);
}

.hero__status {
  margin-top: 2.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--surface);
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero__status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: #38bdf8;
  flex-shrink: 0;
}

/* ---------- Sections ---------- */

.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}

.section--last {
  border-bottom: none;
}

.section__label {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 1rem;
}

.section__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: 1rem;
  max-width: 24rem;
}

.section__body {
  max-width: 42rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.section__body p + p {
  margin-top: 1rem;
}

/* ---------- Fact rows ---------- */

.facts {
  margin-top: 3.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

.fact {
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
}

.fact__label {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.625rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 0.625rem;
}

.fact__value {
  font-size: 0.875rem;
  color: var(--text);
  line-height: 1.5;
}

.fact__value a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
}

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

/* ---------- Buttons / links ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: 2px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}

.btn:hover {
  text-decoration: none;
  background: var(--elevated);
  border-color: #334155;
}

.btn--primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.btn--primary:hover {
  background: #ffffff;
  color: var(--bg);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 2.5rem;
}

/* ---------- Contact block ---------- */

.contact-primary {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  max-width: 42rem;
}

.contact-primary__label {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 0.875rem;
}

.contact-primary__email {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}

.contact-primary__email:hover {
  color: var(--accent);
}

.contact-primary__note {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--muted);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
}

.site-footer__inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 2.5rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 2.5rem;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.site-footer__logo {
  height: 1.75rem;
  width: auto;
  display: block;
}

.site-footer__desc {
  font-size: 0.8125rem;
  color: var(--muted);
  max-width: 24rem;
  margin-bottom: 1.5rem;
}

.site-footer__heading {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 1rem;
}

.site-footer__legal {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
  font-style: normal;
}

.site-footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  font-size: 0.8125rem;
}

.site-footer__links a {
  color: var(--muted);
}

.site-footer__links a:hover {
  color: var(--text);
}

.site-footer__bottom {
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--subtle);
}

/* ---------- Page hero (interior pages) ---------- */

.page-hero {
  border-bottom: 1px solid var(--border);
  padding: 4.5rem 0;
  background: var(--bg);
}

.page-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.page-hero__lede {
  margin-top: 1rem;
  max-width: 42rem;
  color: var(--muted);
}

/* ---------- 404 ---------- */

.error {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem;
}

.error__code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.875rem;
  letter-spacing: 0.28em;
  color: var(--subtle);
  margin-bottom: 1rem;
}

.error__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 40rem) {
  .site-header__inner {
    height: 4rem;
  }

  .hero {
    padding: 4rem 0 5rem;
  }

  .section {
    padding: 3.5rem 0;
  }
}