/* ===== Deep Space Neural — Variables & Base ===== */
@import url('./hero.css');
@import url('./sections.css');
@import url('./responsive.css');

:root {
  --bg-deep: #0a0a0f;
  --bg-card: #111118;
  --bg-card-hover: #16161f;
  --bg-surface: #0e0e15;
  --text-primary: #e8e8f0;
  --text-secondary: #9d9db5;
  --text-muted: #5a5a75;
  --accent-indigo: #818cf8;
  --accent-violet: #a78bfa;
  --accent-glow: rgba(129,140,248,0.15);
  --gradient-main: linear-gradient(135deg,#818cf8,#a78bfa);
  --gradient-text: linear-gradient(135deg,#818cf8,#c4b5fd);
  --border-color: rgba(129,140,248,0.12);
  --border-hover: rgba(129,140,248,0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --section-pad: 6rem 2rem;
  --font: 'Inter',system-ui,-apple-system,sans-serif;
  --mono: 'JetBrains Mono','Fira Code',monospace;
  --fast: .2s ease;
  --base: .3s ease;
}

*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-indigo); text-decoration: none; transition: color var(--fast); }
a:hover { color: var(--accent-violet); }
img { max-width: 100%; display: block; }

h1,h2,h3,h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 4vw, 4rem); }
h2 { font-size: clamp(1.6rem, 2.8vw, 3rem); }
h3 { font-size: clamp(1.1rem, 1.6vw, 1.6rem); }

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

.container { max-width: 1600px; margin: 0 auto; padding: 0 3rem; }
section { padding: var(--section-pad); position: relative; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-header h2 { margin-bottom: .75rem; }
.section-header p {
  color: var(--text-secondary); max-width: 700px;
  margin: 0 auto; font-size: 1.1rem;
}

/* Navbar */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1rem 2rem; display: flex; align-items: center;
  justify-content: space-between; background: rgba(10,10,15,.8);
  backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-color);
  transition: background var(--base);
}
.navbar.scrolled { background: rgba(10,10,15,.95); }
.navbar__logo {
  display: flex; flex-direction: column; line-height: 1; gap: 2px;
}
.navbar__logo-mark {
  font-size: 1.3rem; font-weight: 700;
  background: var(--gradient-main); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.navbar__logo-sub {
  font-size: .58rem; font-weight: 500; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-muted);
}
.navbar__links { list-style: none; display: flex; gap: 2rem; }
.navbar__links a {
  color: var(--text-secondary); font-size: .9rem; font-weight: 500;
  transition: color var(--fast); position: relative;
}
.navbar__links a:hover, .navbar__links a.active { color: var(--text-primary); }
.navbar__links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--gradient-main);
  transition: width var(--base);
}
.navbar__links a:hover::after, .navbar__links a.active::after { width: 100%; }
.navbar__burger {
  flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px; background: none; border: none;
}
.navbar__burger span {
  width: 24px; height: 2px; background: var(--text-secondary);
  transition: all var(--base); display: block;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.75rem; border-radius: var(--radius);
  font-size: .95rem; font-weight: 600; cursor: pointer;
  transition: all var(--base); border: none; font-family: var(--font);
}
.btn--primary {
  background: var(--gradient-main); color: #fff;
  box-shadow: 0 4px 20px rgba(129,140,248,.3);
}
.btn--primary:hover {
  box-shadow: 0 6px 30px rgba(129,140,248,.5); transform: translateY(-2px);
}
.btn--outline {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn--outline:hover {
  border-color: var(--accent-indigo); background: rgba(129,140,248,.06);
}

/* Cards */
.card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius); padding: 2rem; transition: all var(--base);
}
.card:hover {
  border-color: var(--border-hover); background: var(--bg-card-hover);
  box-shadow: 0 8px 32px rgba(129,140,248,.08); transform: translateY(-4px);
}
.card__icon {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  background: rgba(129,140,248,.1); display: flex;
  align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 1.25rem;
}
.card__title { font-size: 1.1rem; margin-bottom: .5rem; }
.card__text { color: var(--text-secondary); font-size: .9rem; }

/* Tags */
.tag {
  padding: .2rem .6rem; font-size: .72rem; border-radius: 50px;
  background: rgba(129,140,248,.08); color: var(--accent-indigo);
  border: 1px solid rgba(129,140,248,.15);
}

/* Reveal */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Footer */
.footer {
  padding: 2rem; text-align: center;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted); font-size: .8rem;
}
.footer__links {
  display: flex; justify-content: center; align-items: center;
  gap: .6rem; margin-top: .5rem;
}
.footer__links a { color: var(--text-muted); transition: color var(--fast); }
.footer__links a:hover { color: var(--accent-indigo); }
.footer__links span { color: var(--text-muted); }