/* ============================================================
   Self-hosted fonts (latin subset, variable woff2)
   ============================================================ */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("fonts/SpaceGrotesk.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/Inter.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url("fonts/JetBrainsMono.woff2") format("woff2");
}

/* ============================================================
   Megatone — styles
   Palette: Carbon #07090c · Slate #0e1219 · Mist #e8edf2
            Steel #8793a4 · Signal Blue #3aa0ff · Tone Cyan #22d3ee
   Type:    Space Grotesk (display) · Inter (body) · JetBrains Mono (utility)
   ============================================================ */

:root {
  --carbon: #07090c;
  --slate: #0e1219;
  --slate-2: #12171f;
  --mist: #e8edf2;
  --steel: #8793a4;
  --steel-dim: #5c6675;
  --blue: #3aa0ff;
  --cyan: #22d3ee;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);

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

  --maxw: 1180px;
  --pad: clamp(1.25rem, 5vw, 3.5rem);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--carbon);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

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

::selection { background: rgba(58, 160, 255, 0.28); color: #fff; }

/* ---------- shared atoms ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  margin: 0 0 1.4rem;
}
.eyebrow__dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--steel-dim);
  margin: 0 0.7em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  padding: 0.85rem 1.5rem;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn--solid {
  background: linear-gradient(100deg, var(--blue), var(--cyan));
  color: #04121f;
  font-weight: 600;
  box-shadow: 0 8px 30px -10px rgba(34, 211, 238, 0.55);
}
.btn--solid:hover { box-shadow: 0 14px 38px -10px rgba(34, 211, 238, 0.7); }

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--mist);
}
.btn--ghost:hover { border-color: var(--blue); background: rgba(58, 160, 255, 0.06); }

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem var(--pad);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
}
.nav.is-stuck {
  background: rgba(7, 9, 12, 0.72);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
}
.nav__brand {
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.nav.is-stuck .nav__brand {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.nav__logo { height: 26px; width: auto; }
.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a {
  font-size: 0.92rem;
  color: var(--steel);
  transition: color 0.18s ease;
}
.nav__links a:hover { color: var(--mist); }
.nav__cta { color: var(--mist); }
.nav__cta:hover { color: var(--mist); }

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

.hero {
  position: relative;
  padding: clamp(5rem, 14vh, 9rem) var(--pad) clamp(4rem, 9vh, 6rem);
  max-width: var(--maxw);
  margin: 0 auto;
  isolation: isolate;
}
.hero::before {
  /* ambient signal glow */
  content: "";
  position: absolute;
  inset: -20% 0 auto 0;
  height: 70%;
  background: radial-gradient(60% 80% at 30% 25%, rgba(58, 160, 255, 0.18), transparent 70%),
              radial-gradient(50% 70% at 80% 10%, rgba(34, 211, 238, 0.12), transparent 70%);
  z-index: -2;
  pointer-events: none;
}

.hero__signal {
  position: absolute;
  left: 0; right: 0;
  bottom: clamp(1rem, 4vh, 3rem);
  height: 220px;
  z-index: -1;
  opacity: 0.9;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.signal-line { width: 100%; height: 100%; display: block; }
.signal-line__path {
  fill: none;
  stroke: url(#signalGrad);
  stroke-width: 1.6;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw 2.6s cubic-bezier(0.65, 0, 0.35, 1) 0.25s forwards;
  filter: drop-shadow(0 0 6px rgba(58, 160, 255, 0.4));
}
@keyframes draw { to { stroke-dashoffset: 0; } }

.hero__inner { position: relative; max-width: 880px; }
.hero__inner > * { animation: heroIn 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
.hero__inner > *:nth-child(1) { animation-delay: 0.04s; }
.hero__inner > *:nth-child(2) { animation-delay: 0.12s; }
.hero__inner > *:nth-child(3) { animation-delay: 0.2s; }
.hero__inner > *:nth-child(4) { animation-delay: 0.28s; }
.hero__inner > *:nth-child(5) { animation-delay: 0.36s; }
@keyframes heroIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

.hero__logo {
  height: clamp(3.4rem, 7.5vw, 6.4rem);
  width: auto;
  display: block;
  margin: 0 0 1.9rem;
  filter: drop-shadow(0 6px 30px rgba(34, 211, 238, 0.18));
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.95rem, 5.3vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin: 0 0 1.5rem;
  overflow-wrap: break-word;
}

.hero__lede {
  font-size: clamp(1.05rem, 2.1vw, 1.32rem);
  line-height: 1.55;
  color: var(--steel);
  max-width: 40ch;
  margin: 0 0 2.4rem;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }

/* ---------- tech strip ---------- */

.strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.012);
}
.strip__list {
  list-style: none;
  margin: 0 auto;
  padding: 1.3rem var(--pad);
  max-width: var(--maxw);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--steel);
}
.strip__list li {
  position: relative;
  padding-left: 1.6rem;
}
.strip__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 6px; height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--blue), var(--cyan));
}

/* ---------- generic section ---------- */

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(4.5rem, 11vh, 7.5rem) var(--pad);
}
.section__head { max-width: 720px; margin-bottom: clamp(2.5rem, 5vw, 3.8rem); }
.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.2vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
}
.section__intro {
  font-size: 1.08rem;
  color: var(--steel);
  margin: 0;
  max-width: 56ch;
}

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

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.card {
  background: var(--slate);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  transition: background 0.25s ease;
  position: relative;
}
.card::after {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.card:hover { background: var(--slate-2); }
.card:hover::after { transform: scaleX(1); }
.card__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--blue);
}
.card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  margin: 0.9rem 0 0.7rem;
}
.card__body { color: var(--steel); font-size: 0.98rem; margin: 0; }

/* ---------- divider waveform ---------- */

.divider {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
  height: 90px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 20%, #000 80%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 20%, #000 80%, transparent);
}
.divider__svg { width: 100%; height: 100%; display: block; }
.divider__svg use {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

/* ---------- approach ---------- */

.approach__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.approach__lead .section__title { margin-bottom: 1.2rem; }

.stats { display: flex; gap: 2.5rem; margin-top: 2.4rem; }
.stat { display: flex; flex-direction: column; gap: 0.4rem; }
.stat__num {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 2.6rem;
  line-height: 1;
  background: linear-gradient(120deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat__plus { font-size: 1.4rem; vertical-align: top; }
.stat__label {
  font-size: 0.85rem;
  color: var(--steel);
  max-width: 16ch;
}

.props { list-style: none; margin: 0; padding: 0; }
.prop {
  padding: 1.6rem 0;
  border-top: 1px solid var(--line);
}
.prop:first-child { padding-top: 0; border-top: none; }
.prop__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  margin: 0 0 0.5rem;
}
.prop__body { color: var(--steel); font-size: 0.98rem; margin: 0; }

/* ---------- contact ---------- */

.contact { text-align: center; }
.contact__inner { max-width: 680px; margin: 0 auto; }
.contact .eyebrow { justify-content: center; }
.contact__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
}
.contact .section__intro { margin: 0 auto; }

.contact__rows {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin: 2.6rem 0;
}
.contact__row {
  background: var(--slate);
  padding: 1.4rem 2.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1 1 240px;
  transition: background 0.2s ease;
}
.contact__row:hover { background: var(--slate-2); }
.contact__k {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel-dim);
}
.contact__v {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--mist);
}

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

.footer { border-top: 1px solid var(--line); }
.footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.2rem var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.footer__logo { height: 20px; width: auto; opacity: 0.85; }
.footer__legal {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--steel-dim);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.footer__sep { opacity: 0.5; }

/* ---------- reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.reveal.is-in { opacity: 1; transform: none; }
.cards .reveal:nth-child(2), .props .reveal:nth-child(2) { transition-delay: 0.06s; }
.cards .reveal:nth-child(3), .props .reveal:nth-child(3) { transition-delay: 0.12s; }
.cards .reveal:nth-child(4) { transition-delay: 0.18s; }
.cards .reveal:nth-child(5) { transition-delay: 0.24s; }
.cards .reveal:nth-child(6) { transition-delay: 0.3s; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .approach__grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav__links { gap: 1.1rem; }
  .nav__links a:not(.nav__cta) { display: none; }
  .hero__title br { display: none; }
  .cards { grid-template-columns: 1fr; }
  .stats { gap: 1.8rem; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .signal-line__path { animation: none; stroke-dashoffset: 0; }
  .hero__inner > * { animation: none; }
  .reveal { transition: none; }
  .btn:hover { transform: none; }
}