@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ========== RESET & BASE ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --black: #000000;
  --purple: #9333ea;
  --purple-light: #a855f7;
  --purple-glow: rgba(147, 51, 234, 0.3);
  --purple-glow-strong: rgba(147, 51, 234, 0.5);
  --white: #ffffff;
  --gray-100: #f4f4f5;
  --gray-300: #d1d1d6;
  --gray-400: #a1a1aa;
  --gray-600: #52525b;
  --gray-700: #3f3f46;
  --gray-800: #27272a;
  --gray-900: #18181b;
  --surface: rgba(255,255,255,0.04);
  --surface-hover: rgba(255,255,255,0.07);
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(147, 51, 234, 0.4);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

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

body {
  font-family: var(--font);
  background-color: var(--black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== CANVAS (STAR FIELD) ========== */
#starCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ========== NOISE OVERLAY ========== */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.4;
  pointer-events: none;
  z-index: 1;
}

/* ========== NAVIGATION ========== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 60px;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

nav.scrolled {
  background: rgba(0,0,0,0.9);
  border-bottom-color: rgba(147, 51, 234, 0.15);
}

.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--white);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo-mark {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--purple), var(--purple-light));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--white);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.6rem 1.4rem;
  border-radius: 50px;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--purple), var(--purple-light));
  color: var(--white);
  box-shadow: 0 0 20px var(--purple-glow), 0 4px 15px rgba(0,0,0,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px var(--purple-glow-strong), 0 8px 25px rgba(0,0,0,0.4);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--gray-300);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--surface);
  border-color: var(--border-hover);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-outline:hover {
  background: var(--surface);
  border-color: var(--purple);
  color: var(--white);
}

/* ========== PILL LABELS ========== */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.35rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-400);
  letter-spacing: 0.02em;
}

.pill-purple {
  background: rgba(147, 51, 234, 0.1);
  border-color: rgba(147, 51, 234, 0.25);
  color: var(--purple-light);
}

.pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.7;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.2); }
}

/* ========== SECTION BASE ========== */
section {
  position: relative;
  z-index: 2;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-padding {
  padding: 7rem 0;
}

/* ========== HEADINGS ========== */
h1, h2, h3, h4 {
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.heading-xl {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.heading-lg {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.heading-md {
  font-size: clamp(1.3rem, 2.5vw, 1.875rem);
  font-weight: 700;
}

.text-purple { color: var(--purple-light); }
.text-muted { color: var(--gray-400); }
.text-center { text-align: center; }

/* ========== GRADIENT TEXT ========== */
.gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #a855f7 70%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========== DIVIDER ========== */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0;
}

/* ========== CARDS ========== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-hover);
  background: var(--surface-hover);
  transform: translateY(-2px);
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--purple-glow), transparent);
  opacity: 0;
  transition: var(--transition);
}
.card:hover::before { opacity: 1; }

/* ========== GLOW ORBS ========== */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}
.glow-purple {
  background: radial-gradient(circle, rgba(147,51,234,0.35) 0%, transparent 70%);
}
.glow-blue {
  background: radial-gradient(circle, rgba(59,130,246,0.2) 0%, transparent 70%);
}

/* ========== FOOTER ========== */
footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--gray-400);
  font-size: 0.875rem;
  margin-top: 0.75rem;
  max-width: 240px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-600);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition-fast);
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  color: var(--gray-600);
  font-size: 0.8rem;
}

.footer-bottom a {
  color: var(--gray-600);
  text-decoration: none;
  font-size: 0.8rem;
  transition: var(--transition-fast);
}
.footer-bottom a:hover { color: var(--gray-400); }

/* ========== SCROLL ANIMATIONS ========== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in {
  opacity: 0;
  transition: opacity 0.7s ease;
}
.fade-in.visible { opacity: 1; }

/* ========== PAGE HEADER (inner pages) ========== */
.page-header {
  padding: 10rem 0 5rem;
  text-align: center;
  position: relative;
}

.page-header .glow-orb {
  width: 500px; height: 300px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

/* ========== LEGAL CONTENT ========== */
.legal-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 2rem 6rem;
  position: relative;
  z-index: 2;
}

.legal-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 2.5rem 0 0.75rem;
  color: var(--white);
}

.legal-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--gray-300);
}

.legal-content p {
  color: var(--gray-400);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 0.75rem;
}

.legal-content a {
  color: var(--purple-light);
  text-decoration: none;
}
.legal-content a:hover { text-decoration: underline; }

.legal-content ul {
  color: var(--gray-400);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin: 0.5rem 0 0.75rem 1.5rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  nav { padding: 0 1.25rem; }
  .nav-links { display: none; }
  .container { padding: 0 1.25rem; }
  .section-padding { padding: 5rem 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}