/* Tecnova — landing page
   Concept: anodized-aluminum instrument panel.
   Light = brushed aluminum under daylight, deep electric-blue ink.
   Dark  = powered panel at night, vivid anodized-blue glow on steel. */

:root {
  --bg: #eef1f5;
  --surface: #e2e8ee;
  --surface-2: #d2dce6;
  --ink: #101d2b;
  --ink-dim: #435a72;
  --accent: #0b63d1;
  --accent-2: #7d93a8;
  --accent-soft: #bcd6f2;
  --accent-contrast: #f5f8fb;
  --border: rgba(16, 29, 43, 0.14);
  --shadow: rgba(16, 29, 43, 0.12);
  --glow: rgba(11, 99, 209, 0.25);

  --font-display: 'Big Shoulders Display', 'Arial Narrow', sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Consolas', ui-monospace, monospace;

  --measure: 62ch;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0e13;
    --surface: #121a22;
    --surface-2: #1a2530;
    --ink: #eef3f8;
    --ink-dim: #8ea2b4;
    --accent: #2f8fff;
    --accent-2: #9fb2c4;
    --accent-soft: #1c4a80;
    --accent-contrast: #041019;
    --border: rgba(238, 243, 248, 0.12);
    --shadow: rgba(0, 0, 0, 0.5);
    --glow: rgba(47, 143, 255, 0.4);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0a0e13;
  --surface: #121a22;
  --surface-2: #1a2530;
  --ink: #eef3f8;
  --ink-dim: #8ea2b4;
  --accent: #2f8fff;
  --accent-2: #9fb2c4;
  --accent-soft: #1c4a80;
  --accent-contrast: #041019;
  --border: rgba(238, 243, 248, 0.12);
  --shadow: rgba(0, 0, 0, 0.5);
  --glow: rgba(47, 143, 255, 0.4);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

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

a {
  color: inherit;
}

h1, h2, h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  text-wrap: balance;
  line-height: 0.95;
  margin: 0;
}

p {
  margin: 0;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

/* background — generated circuit traces that light up near the cursor */
.circuit-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  display: block;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

/* corner tick-marks, drafting-frame motif */
.tick {
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
}
.tick::before, .tick::after {
  content: "";
  position: absolute;
  background: var(--accent-soft);
}
.tick::before { width: 100%; height: 1.5px; }
.tick::after { width: 1.5px; height: 100%; }
.tick--tl { top: -1px; left: -1px; }
.tick--tl::before, .tick--tl::after { top: 0; left: 0; }
.tick--br { bottom: -1px; right: -1px; }
.tick--br::before, .tick--br::after { bottom: 0; right: 0; }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.nav__links {
  display: flex;
  gap: 2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav__links a {
  text-decoration: none;
  color: var(--ink-dim);
  transition: color 0.2s ease;
}

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

/* ---------- hero ---------- */
.hero {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(3.5rem, 10vw, 8rem) 1.5rem clamp(4rem, 8vw, 6rem);
  overflow: hidden;
}

.hero__frame {
  position: relative;
  max-width: 46rem;
}

.hero__title {
  font-size: clamp(4rem, 14vw, 9rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
  background: linear-gradient(100deg, var(--ink) 0%, var(--ink) 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__thesis {
  margin-top: 1.5rem;
  max-width: 42rem;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  color: var(--ink-dim);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border: 1.5px solid var(--ink);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

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

.btn--primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  transform: translateY(-2px);
  box-shadow: 0 0 28px var(--glow);
}

.btn--ghost {
  color: var(--ink);
  border-color: var(--border);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 0 20px var(--glow);
}

.hero__trace {
  position: absolute;
  right: -2%;
  top: 50%;
  transform: translateY(-50%);
  width: min(46vw, 560px);
  height: auto;
  stroke: var(--accent);
  opacity: 0.9;
  filter: drop-shadow(0 0 10px var(--glow));
}

.hero__trace path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: square;
}

.hero__trace circle {
  fill: var(--accent);
}

@media (max-width: 860px) {
  .hero__trace { display: none; }
}

/* ---------- sections ---------- */
section {
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) 1.5rem;
}

.section__head {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.section__head h2 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
}

/* ---------- services ---------- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.card {
  position: relative;
  background: var(--surface);
  padding: 2rem 1.75rem;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease, background 0.2s ease;
}

.card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.card:hover {
  background: var(--surface-2);
}

.card__icon {
  width: 34px;
  height: 34px;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.card__icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 0.6rem;
}

.card p {
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.card__index {
  position: absolute;
  top: 1.5rem;
  right: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-dim);
  opacity: 0.6;
}

/* ---------- team ---------- */
.team__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.chip {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem 1.75rem 1.75rem;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.2s ease;
}

.chip.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.chip:hover {
  border-color: var(--accent);
  box-shadow: 0 0 24px var(--glow);
}

/* IC-chip pin ticks along top/bottom edge */
.chip::before, .chip::after {
  content: "";
  position: absolute;
  left: 1.75rem;
  right: 1.75rem;
  height: 1px;
  background-image: repeating-linear-gradient(
    to right,
    var(--accent-soft) 0,
    var(--accent-soft) 6px,
    transparent 6px,
    transparent 16px
  );
  opacity: 0.7;
}
.chip::before { top: 0; }
.chip::after { bottom: 0; }

.chip__badge {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--accent-contrast);
  background: linear-gradient(135deg, var(--ink) 0%, var(--accent) 140%);
  border: 1px solid var(--accent-soft);
  margin-bottom: 1.5rem;
  transition: box-shadow 0.2s ease;
}

.chip:hover .chip__badge {
  box-shadow: 0 0 16px var(--glow);
}

.chip h3 {
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  line-height: 1.25;
  margin-bottom: 0.55rem;
}

.chip__title {
  font-size: 0.88rem;
  color: var(--ink-dim);
  margin-bottom: 1.4rem;
  min-height: 3.2em;
}

.chip__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--accent);
  border-top: 1px solid var(--border);
  padding-top: 0.9rem;
  transition: gap 0.2s ease, color 0.2s ease;
}

.chip__link:hover {
  gap: 0.65rem;
  color: var(--ink);
}

/* ---------- footer ---------- */
.footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 3rem 1.5rem 3.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.footer__brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.03em;
}

.footer__tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
}

.footer__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-dim);
  opacity: 0.7;
}