/* ========== TECHAY Corporate — Shared Styles ========== */

:root {
  /* Light theme (default — corporate) */
  --bg: #FFFFFF;
  --bg-elev: #F5F8FC;
  --surface: #F0F4FA;
  --surface-2: #E6ECF4;
  --line: #DCE4EE;
  --line-strong: #C2CCDB;

  --ink: #0A1A2E;
  --ink-strong: #04101F;
  --ink-soft: #3C4B62;
  --ink-muted: #6A7890;
  --ink-faint: #98A4B8;

  --brand-deep: #0D3A5C;        /* logo deep navy */
  --brand: #1F6FA8;             /* logo mid blue */
  --brand-bright: #5DB6E0;      /* logo bright cyan */
  --brand-soft: #DCEEF8;
  --accent: #C9A24D;            /* subtle metallic gold for awards/sigils only */
  --alert: #C0392B;
  --ok: #15803D;

  --shadow-sm: 0 1px 2px rgba(10,26,46,.06), 0 1px 1px rgba(10,26,46,.04);
  --shadow-md: 0 8px 20px rgba(10,26,46,.08), 0 2px 4px rgba(10,26,46,.05);
  --shadow-lg: 0 24px 48px rgba(10,26,46,.12), 0 6px 12px rgba(10,26,46,.06);

  --font-display: "Sora", "Space Grotesk", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --rad-sm: 4px;
  --rad-md: 8px;
  --rad-lg: 14px;
  --rad-xl: 22px;

  --nav-h: 72px;
  --container: 1280px;
}

[data-theme="dark"] {
  --bg: #060B16;
  --bg-elev: #0B1424;
  --surface: #0F1B2F;
  --surface-2: #16243C;
  --line: #1B2A44;
  --line-strong: #2A3E5E;

  --ink: #E8EEF8;
  --ink-strong: #FFFFFF;
  --ink-soft: #B5C2D6;
  --ink-muted: #7E8DA6;
  --ink-faint: #56657F;

  --brand-deep: #0D3A5C;
  --brand: #4A9BD4;
  --brand-bright: #7DC8E8;
  --brand-soft: #112A45;
  --accent: #D4B765;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 12px 28px rgba(0,0,0,.45);
  --shadow-lg: 0 28px 56px rgba(0,0,0,.5);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "ss02", "cv11";
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--brand); color: white; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--ink-strong);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.1;
  text-wrap: balance;
}

/* ===== Utilities ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 720px) {
  .container { padding: 0 20px; }
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 600;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--brand);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  border-radius: var(--rad-sm);
  background: var(--brand-deep);
  color: white;
  transition: background .2s, transform .15s, box-shadow .2s;
}
.btn:hover { background: var(--brand); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); background: transparent; box-shadow: none; }
.btn--lg { padding: 16px 28px; font-size: 1rem; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ===== Top Bar ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar__inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 1.05rem;
  color: var(--ink-strong);
}
.brand__mark { width: 32px; height: 32px; }
.brand__name { display: inline-block; }
.brand__name em {
  font-style: normal;
  font-weight: 400;
  color: var(--ink-muted);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-left: 12px;
  border-left: 1px solid var(--line-strong);
  padding-left: 12px;
}
@media (max-width: 1200px) {
  .brand__name em { display: none; }
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__link {
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-radius: var(--rad-sm);
  transition: color .15s, background .15s;
}
.nav__link:hover { color: var(--ink-strong); background: var(--surface); }
.nav__link.is-active { color: var(--brand); }

.topbar__right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.iconbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--rad-sm);
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  transition: all .15s;
}
.iconbtn:hover { color: var(--brand); border-color: var(--brand); }

.lang {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: var(--rad-sm);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}
.lang button {
  background: transparent;
  border: 0;
  padding: 8px 12px;
  color: var(--ink-muted);
  font-weight: 600;
}
.lang button.is-active { background: var(--brand-deep); color: white; }

/* Mobile menu toggle */
.menu-toggle { display: none; }
@media (max-width: 960px) {
  .nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav--open {
    display: flex;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 12px 20px 20px;
    gap: 4px;
  }
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
  padding: 80px 0 40px;
  margin-top: 120px;
  color: var(--ink-soft);
  font-size: 0.9rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer__col h4 {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-weight: 500;
  margin-bottom: 18px;
}
.footer__col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer__col a:hover { color: var(--brand); }
.footer__brand p { max-width: 320px; margin: 16px 0 24px; }
.footer__bottom {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--ink-muted);
  font-size: 0.82rem;
}
@media (max-width: 840px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .footer__grid { grid-template-columns: 1fr; }
}

/* ===== Generic section ===== */
section {
  padding: 120px 0;
  position: relative;
}
@media (max-width: 720px) {
  section { padding: 80px 0; }
}
.section__head {
  margin-bottom: 56px;
  max-width: 720px;
}
.section__head h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 14px 0 18px;
}
.section__head p {
  color: var(--ink-soft);
  font-size: 1.1rem;
  margin: 0;
  max-width: 60ch;
  text-wrap: pretty;
}

/* ===== Cards ===== */
.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--rad-md);
  padding: 28px;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}
.card h3 {
  font-size: 1.25rem;
  margin: 16px 0 10px;
}
.card p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.95rem;
}
.card__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--rad-sm);
  background: var(--brand-soft);
  color: var(--brand-deep);
}
[data-theme="dark"] .card__icon { background: var(--surface-2); color: var(--brand-bright); }

/* ===== Hero base ===== */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 120px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-elev) 100%);
}
.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero__title {
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.025em;
}
.hero__title em {
  font-style: normal;
  color: var(--brand);
  display: block;
}
.hero__lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 50ch;
  margin: 24px 0 36px;
}
.hero__ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero__meta {
  display: flex;
  gap: 32px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.hero__meta > div { display: flex; flex-direction: column; gap: 4px; }
.hero__meta strong {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--ink-strong);
  font-weight: 600;
}
.hero__meta span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ===== Page header (interior pages) ===== */
.page-header {
  padding: 100px 0 60px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.page-header h1 {
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  margin: 14px 0 18px;
}
.page-header p {
  color: var(--ink-soft);
  font-size: 1.1rem;
  max-width: 60ch;
  margin: 0;
}
.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 8px;
}
.crumbs a:hover { color: var(--brand); }
.crumbs span { opacity: .5; }

/* ===== Specs/Stats ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--rad-md);
  overflow: hidden;
  background: var(--bg);
}
.stat {
  padding: 28px 24px;
  border-right: 1px solid var(--line);
}
.stat:last-child { border-right: 0; }
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 600;
  color: var(--ink-strong);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat__num small {
  font-size: 0.55em;
  color: var(--ink-muted);
  font-weight: 500;
  margin-left: 4px;
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 8px;
}
@media (max-width: 840px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2n) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

/* ===== Comparison table ===== */
.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.compare thead th {
  text-align: left;
  padding: 18px 20px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  border-bottom: 1px solid var(--line);
  font-weight: 500;
  background: var(--bg-elev);
}
.compare thead th.is-hero {
  color: var(--brand-deep);
  background: var(--brand-soft);
}
[data-theme="dark"] .compare thead th.is-hero { color: var(--brand-bright); background: var(--surface-2); }
.compare tbody td {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.compare tbody td:first-child {
  color: var(--ink-strong);
  font-weight: 500;
}
.compare tbody td.is-hero {
  background: color-mix(in oklab, var(--brand-soft) 60%, transparent);
  color: var(--ink-strong);
  font-weight: 500;
}
[data-theme="dark"] .compare tbody td.is-hero { background: color-mix(in oklab, var(--surface-2) 80%, transparent); }
.compare tbody tr:last-child td { border-bottom: 0; }
.compare .pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.pill--ok { background: rgba(21,128,61,.12); color: #15803D; }
.pill--warn { background: rgba(192,57,43,.12); color: var(--alert); }
.pill--info { background: var(--brand-soft); color: var(--brand-deep); }
[data-theme="dark"] .pill--info { background: var(--surface-2); color: var(--brand-bright); }

@media (max-width: 720px) {
  .compare { font-size: 0.85rem; }
  .compare thead th, .compare tbody td { padding: 12px 12px; }
}

/* ===== Form ===== */
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
}
.field input,
.field textarea,
.field select {
  font: inherit;
  font-size: 1rem;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--rad-sm);
  padding: 12px 14px;
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: 0;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--brand) 18%, transparent);
}
.field textarea { min-height: 140px; resize: vertical; }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Skip & a11y ===== */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}