@import url("variables.css");
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Grotesk:wght@600;700&display=swap");

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}

body::before {
  content: "";
  position: fixed;
  inset: -20% -20% auto auto;
  width: 60vw; height: 60vw;
  background: radial-gradient(closest-side, rgba(124,92,255,.20), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: "";
  position: fixed;
  inset: auto auto -20% -20%;
  width: 55vw; height: 55vw;
  background: radial-gradient(closest-side, rgba(34,211,238,.18), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}
html[data-theme="light"] body::before { background: radial-gradient(closest-side, rgba(124,92,255,.14), transparent 70%); }
html[data-theme="light"] body::after { background: radial-gradient(closest-side, rgba(34,211,238,.12), transparent 70%); }

main, header, footer { position: relative; z-index: 1; }

h1, h2, h3, h4 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2vw, 1.4rem); font-weight: 700; }
p { margin: 0 0 1em; color: var(--text-muted); }

a { color: inherit; text-decoration: none; transition: color var(--dur-fast); }
a:hover { color: var(--brand-2); }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 640px) { .container { padding: 0 18px; } }

section { padding: clamp(64px, 9vw, 120px) 0; position: relative; }

.gradient-text {
  background: var(--brand-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  margin-bottom: 18px;
}

.btn {
  --btn-bg: var(--surface);
  --btn-fg: var(--text);
  --btn-bd: var(--border-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid var(--btn-bd);
  border-radius: 999px;
  cursor: pointer;
  transition: transform var(--dur-fast), background var(--dur-fast), border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.btn:hover { transform: translateY(-1px); background: var(--surface-hover); }
.btn-primary {
  --btn-bg: var(--brand-grad);
  --btn-fg: #fff;
  --btn-bd: transparent;
  box-shadow: 0 10px 28px rgba(124,92,255,.35);
}
.btn-primary:hover { box-shadow: 0 16px 40px rgba(124,92,255,.5); color: #fff; }
.btn-ghost { --btn-bg: transparent; }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--dur) var(--ease-out), border-color var(--dur), box-shadow var(--dur);
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.section-head p { font-size: 1.05rem; }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }

.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal-zoom { transform: scale(.94); }
.reveal-left.is-visible, .reveal-right.is-visible, .reveal-zoom.is-visible { transform: none; }

:focus-visible { outline: 2px solid var(--brand-2); outline-offset: 3px; border-radius: 6px; }

::selection { background: rgba(124,92,255,.35); color: #fff; }

/* Loading spinner for sections */
.section-loading { min-height: 120px; display: grid; place-items: center; color: var(--text-dim); }