/* ─── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #A855F7;
  --primary-light: #C084FC;
  --primary-dark: #7E22CE;
  --bg: #09090B;
  --surface: #18181B;
  --surface-light: #27272A;
  --border: #3F3F46;
  --text: #FAFAFA;
  --text-secondary: #A1A1AA;
  --text-muted: #71717A;
  --gradient: linear-gradient(135deg, #A855F7, #C084FC, #E9D5FF);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* ─── Gradient Text ───────────────────────────────────────────── */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(168, 85, 247, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

/* ─── Navigation ──────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: all 0.3s ease;
}

.nav.scrolled {
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  background: var(--primary);
  color: #fff;
  padding: 6px 16px;
  border-radius: 8px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.logo-icon {
  font-size: 20px;
  font-weight: 800;
  margin-right: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.nav-links .nav-cta {
  background: var(--primary);
  color: #fff;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
}

.nav-links .nav-cta:hover {
  background: var(--primary-light);
}

.nav-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-menu span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-menu.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-menu.open span:nth-child(2) {
  opacity: 0;
}
.nav-menu.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 0 24px 20px;
  background: rgba(9, 9, 11, 0.95);
  backdrop-filter: blur(20px);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
}

.mobile-menu .nav-cta {
  background: var(--primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  text-align: center;
  font-weight: 600;
}

/* ─── Hero ────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 700px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22C55E;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(42px, 7vw, 72px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-light);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

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

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 18px;
  color: var(--text-secondary);
}

/* ─── Features ────────────────────────────────────────────────── */
.features {
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(168, 85, 247, 0.1);
}

.feature-highlight {
  grid-column: span 2;
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(168, 85, 247, 0.1);
  color: var(--primary);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─── How It Works ────────────────────────────────────────────── */
.how-it-works {
  padding: 100px 0;
  background: var(--surface);
}

.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.step-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
  max-width: 300px;
  flex: 1;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.step-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.step-card:hover {
  border-color: var(--primary);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 20px;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-connector {
  flex-shrink: 0;
}

/* ─── Download CTA ────────────────────────────────────────────── */
.download {
  padding: 100px 0;
}

.download-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 80px 40px;
  text-align: center;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.download-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.download-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.download-card h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
  position: relative;
}

.download-card p {
  font-size: 18px;
  color: var(--text-secondary);
  position: relative;
}

.download-actions {
  margin-top: 32px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  position: relative;
}

.download-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted) !important;
}

/* ─── Footer ──────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 24px 24px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 12px;
  max-width: 280px;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}

.footer-col a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ─── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-highlight {
    grid-column: span 2;
  }

  .steps-grid {
    flex-direction: column;
    gap: 20px;
  }

  .step-connector {
    transform: rotate(90deg);
  }

  .step-card {
    max-width: 100%;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .nav-menu {
    display: flex;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-highlight {
    grid-column: span 1;
  }

  .hero h1 {
    letter-spacing: -1px;
  }

  .hero-stats {
    gap: 20px;
  }

  .stat-number {
    font-size: 20px;
  }

  .footer-inner {
    flex-direction: column;
  }

  .download-card {
    padding: 50px 24px;
  }
}