:root {
  --bg: #0a0e17;
  --surface: #111827;
  --surface-soft: #182233;
  --surface-strong: #1e293b;
  --surface-panel: #131c2b;
  --ink: #f1f5f9;
  --ink-soft: #9ca3af;
  --ink-faint: #6b7280;

  --brand: #0066ff;
  --brand-strong: #004fc7;
  --brand-soft: rgba(0, 102, 255, 0.12);
  --accent: #ffd700;
  --accent-strong: #ffa500;
  --accent-soft: rgba(255, 215, 0, 0.14);
  --success: #12b669;
  --danger: #cf3650;
  --warn: #9f7a18;

  --line: rgba(55, 65, 81, 0.5);
  --line-strong: rgba(71, 85, 105, 0.75);
  --shadow-sm: 0 18px 40px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 24px 56px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 36px 90px rgba(0, 0, 0, 0.42);

  --radius-xs: 10px;
  --radius-sm: 16px;
  --radius-md: 22px;
  --radius-lg: 32px;

  --header-h: 88px;
  --topbar-h: 42px;

  --font-body: 'Inter', 'Segoe UI', Tahoma, sans-serif;
  --font-display: 'Orbitron', 'Segoe UI', Tahoma, sans-serif;
  --font-tech: 'Rajdhani', 'Segoe UI', Tahoma, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  background: #0a0e17;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 215, 0, 0.08), transparent 42%),
    radial-gradient(circle at 80% 18%, rgba(0, 102, 255, 0.08), transparent 34%),
    linear-gradient(180deg, #0a0e17 0%, #111827 52%, #0a0e17 100%);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.container {
  width: min(1240px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 72px 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  margin: 0 0 14px;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-transform: uppercase;
}

h1 {
  font-size: clamp(34px, 5vw, 78px);
  line-height: 1.06;
}

h2 {
  font-size: clamp(28px, 3.4vw, 54px);
  line-height: 1.08;
}

h3 {
  font-size: clamp(20px, 2.4vw, 34px);
}

p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.7;
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

mark {
  background: var(--accent-soft);
  color: #fff5d7;
  border-radius: 4px;
  padding: 0 3px;
}

::selection {
  background: rgba(245, 204, 92, 0.35);
  color: #fffbe8;
}

:focus-visible {
  outline: 3px solid rgba(245, 204, 92, 0.65);
  outline-offset: 3px;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Orbitron:wght@600;700;800&family=Rajdhani:wght@500;600;700&display=swap');