/* ============================================================
   BASE — reset, variables, typography, layout, buttons, nav
   ============================================================ */

:root {
  --bg: #080c14;
  --bg-2: #0d1220;
  --bg-card: #111827;
  --bg-card-hover: #151e2e;
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.15);

  --blue: #3b82f6;
  --blue-dark: #2563eb;
  --cyan: #06b6d4;
  --purple: #8b5cf6;

  --text: #f0f4ff;
  --text-muted: #8b95b0;
  --text-subtle: #4b5568;

  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-card: 0 4px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 60px rgba(59,130,246,0.15);

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---- SECTION LAYOUT ---- */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 96px 0; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.25);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- GRADIENT TEXT ---- */
.gradient-text {
  background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 60%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 0 0 0 rgba(59,130,246,0);
}
.btn-primary:hover {
  background: var(--blue-dark);
  box-shadow: 0 0 32px rgba(59,130,246,0.4);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.25);
}

.btn-full { width: 100%; justify-content: center; }

/* ---- NAVIGATION ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0;
  transition: background var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
}
.logo span { color: var(--blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

.nav-cta {
  background: var(--blue) !important;
  color: #fff !important;
  padding: 8px 20px !important;
}
.nav-cta:hover { background: var(--blue-dark) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- HIDDEN HONEYPOT ---- */
.hidden { display: none; }

/* ---- RESPONSIVE BASE ---- */
@media (max-width: 768px) {
  section { padding: 72px 0; }
  .section-header { margin-bottom: 48px; }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    background: rgba(8,12,20,0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 4px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 16px; }
  .nav-toggle { display: flex; }
}