:root {
  --brand: #6366f1;
  --brand-dark: #4f46e5;
  --brand-light: #818cf8;
  --accent: #ec4899;
  --text: #0f172a;
  --muted: #64748b;
  --bg: #fafbfe;
  --panel: #ffffff;
  --card: #f8fafc;
  --ring: rgba(99, 102, 241, 0.25);
  --border: #e2e8f0;
  --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

* {
  box-sizing: border-box;
}

img {
  max-width: 100%;
  height: auto;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial,
    sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* overflow-x: hidden; */
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 48px;
}

.section {
  padding: 96px 0 72px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 18px;
  transition: opacity 0.2s ease;
}
.brand:hover {
  opacity: 0.8;
}
.logo {
  width: 28px;
  height: 28px;
  transition: transform 0.3s ease;
}
.brand:hover .logo {
  transform: scale(1.05);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  border: none;
  cursor: pointer;
}
.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.btn:hover::before {
  opacity: 1;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  box-shadow: 0 4px 20px var(--ring), 0 1px 3px rgba(0, 0, 0, 0.1);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--ring), 0 2px 6px rgba(0, 0, 0, 0.15);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-secondary {
  background: rgba(99, 102, 241, 0.1);
  color: var(--brand-dark);
  border: 1px solid rgba(99, 102, 241, 0.2);
}
.btn-secondary:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-1px);
}
.btn-dark {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}
.btn-dark:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}
.btn-ghost {
  color: var(--text);
  background: transparent;
}

/* Hero */
.hero {
  padding-top: 120px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 1200px 600px at 50% -10%,
    rgba(148, 163, 184, 0.08),
    transparent 60%
  );
  z-index: -1;
}

.hero h1 {
  font-size: 64px;
  line-height: 1.1;
  margin: 0 0 24px;
  letter-spacing: -0.03em;
  font-weight: 800;
  background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fade-in-up 0.8s ease-out;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.lead {
  font-size: 21px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 780px;
  animation: fade-in-up 0.8s ease-out 0.2s both;
}
.cta-row {
  margin-top: 36px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fade-in-up 0.8s ease-out 0.4s both;
}
.subtext {
  font-size: 14px;
  color: #94a3b8;
  font-weight: 500;
}
.hero-card {
  margin-top: 56px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.9)
  );
  backdrop-filter: blur(10px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 24px;
  padding: 64px 48px;
  box-shadow: 0 20px 60px -12px rgba(99, 102, 241, 0.15),
    0 8px 16px -8px rgba(0, 0, 0, 0.1), inset 0 1px 0 0 rgba(255, 255, 255, 0.8);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  animation: fade-in-up 0.8s ease-out 0.6s both;
  text-align: center;
}
.hero-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 80px -12px rgba(99, 102, 241, 0.25),
    0 12px 24px -8px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 0 rgba(255, 255, 255, 0.8);
}
.card-content {
  max-width: 600px;
  margin: 0 auto;
}
.card-title {
  font-size: 36px;
  font-weight: 800;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.card-subtitle {
  font-size: 18px;
  color: var(--muted);
  margin: 0 0 32px;
  line-height: 1.6;
}
.card-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  box-shadow: 0 4px 20px var(--ring), 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--ring), 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* Features */
.features {
  padding-top: 80px;
}
.features h2 {
  font-size: 42px;
  font-weight: 800;
  margin: 0 0 48px;
  letter-spacing: -0.02em;
  text-align: center;
  background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.85)
  );
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 10px 40px -10px rgba(99, 102, 241, 0.1),
    0 2px 8px -2px rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand), var(--brand-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.card:hover::before {
  transform: scaleX(1);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px -10px rgba(99, 102, 241, 0.2),
    0 4px 16px -2px rgba(0, 0, 0, 0.08);
  border-color: rgba(99, 102, 241, 0.3);
}
.card h3 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 15px;
}

/* What's inside */
.whats-inside {
  padding-top: 80px;
}
.whats-inside h2 {
  font-size: 42px;
  font-weight: 800;
  margin: 0 0 48px;
  letter-spacing: -0.02em;
  text-align: center;
  background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.bullets {
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: 800px;
  margin: 0 auto;
}
.inside-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.85)
  );
  border: 1px solid rgba(226, 232, 240, 0.8);
  padding: 20px 24px;
  border-radius: 16px;
  margin: 16px 0;
  box-shadow: 0 4px 20px -4px rgba(99, 102, 241, 0.08),
    0 1px 4px -1px rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.inside-list li:hover {
  transform: translateX(8px);
  box-shadow: 0 8px 30px -4px rgba(99, 102, 241, 0.15),
    0 2px 8px -1px rgba(0, 0, 0, 0.06);
  border-color: rgba(99, 102, 241, 0.3);
}
.inside-list li::before {
  content: "";
  width: 12px;
  height: 12px;
  min-width: 12px;
  margin-top: 6px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  box-shadow: 0 0 0 6px rgba(99, 102, 241, 0.12);
  transition: all 0.3s ease;
}
.inside-list li:hover::before {
  box-shadow: 0 0 0 8px rgba(99, 102, 241, 0.18);
  transform: scale(1.1);
}

/* Examples */
.examples {
  padding-top: 80px;
}
.examples h2 {
  font-size: 42px;
  font-weight: 800;
  margin: 0 0 48px;
  letter-spacing: -0.02em;
  text-align: center;
  background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
blockquote.example {
  margin: 0;
  padding: 28px 32px;
  border-left: 4px solid var(--brand);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.85)
  );
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 16px;
  color: var(--text);
  box-shadow: 0 4px 20px -4px rgba(99, 102, 241, 0.08),
    0 1px 4px -1px rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 16px;
  line-height: 1.7;
  font-style: italic;
  position: relative;
}
blockquote.example::before {
  content: '"';
  position: absolute;
  top: 12px;
  left: 16px;
  font-size: 48px;
  font-weight: 700;
  color: rgba(99, 102, 241, 0.15);
  font-family: Georgia, serif;
  line-height: 1;
}
blockquote.example:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px -4px rgba(99, 102, 241, 0.15),
    0 2px 8px -1px rgba(0, 0, 0, 0.06);
  border-left-color: var(--brand-light);
}

/* Pricing */
.pricing {
  padding: 80px 0;
  position: relative;
}
.pricing::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(99, 102, 241, 0.05),
    transparent 70%
  );
  z-index: -1;
}
.pricing h2 {
  font-size: 42px;
  font-weight: 800;
  margin: 0 0 48px;
  letter-spacing: -0.02em;
  text-align: center;
  background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.plans {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}
.plan {
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 24px;
  padding: 40px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.9)
  );
  backdrop-filter: blur(10px);
  position: relative;
  box-shadow: 0 10px 40px -10px rgba(99, 102, 241, 0.1),
    0 2px 8px -2px rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}
.plan:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px -10px rgba(99, 102, 241, 0.2),
    0 4px 16px -2px rgba(0, 0, 0, 0.08);
}
.plan.popular {
  border-color: rgba(99, 102, 241, 0.4);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.98),
    rgba(249, 250, 255, 0.95)
  );
  box-shadow: 0 20px 60px -10px rgba(99, 102, 241, 0.25),
    0 4px 16px -2px rgba(0, 0, 0, 0.08), inset 0 0 0 1px rgba(99, 102, 241, 0.1);
}
.plan.popular:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 30px 80px -10px rgba(99, 102, 241, 0.35),
    0 6px 24px -2px rgba(0, 0, 0, 0.12),
    inset 0 0 0 1px rgba(99, 102, 241, 0.15);
}
.badge {
  position: absolute;
  top: 24px;
  right: 24px;
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  color: #fff;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
  letter-spacing: -0.01em;
}
.plan h3 {
  font-size: 24px;
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.price {
  font-size: 52px;
  font-weight: 800;
  margin: 12px 0 20px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.price span {
  font-size: 20px;
  color: var(--muted);
  font-weight: 600;
}
.plan ul {
  margin: 20px 0 24px;
  padding-left: 0;
  list-style: none;
  color: var(--muted);
}
.plan ul li {
  padding: 10px 0;
  padding-left: 28px;
  position: relative;
  line-height: 1.6;
}
.plan ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: 700;
  font-size: 16px;
}
.plan .btn {
  margin-top: auto;
  width: 100%;
  font-size: 16px;
}

/* FAQ */
.faq {
  padding: 80px 0 100px;
}
.faq h2 {
  font-size: 42px;
  font-weight: 800;
  margin: 0 0 48px;
  letter-spacing: -0.02em;
  text-align: center;
  background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
details {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.85)
  );
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 16px;
  padding: 24px 28px;
  margin: 16px 0;
  box-shadow: 0 4px 20px -4px rgba(99, 102, 241, 0.08),
    0 1px 4px -1px rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
details:hover {
  box-shadow: 0 8px 30px -4px rgba(99, 102, 241, 0.12),
    0 2px 8px -1px rgba(0, 0, 0, 0.06);
  border-color: rgba(99, 102, 241, 0.3);
}
details[open] {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 1),
    rgba(249, 250, 255, 0.95)
  );
  border-color: rgba(99, 102, 241, 0.3);
}
summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  position: relative;
  padding-right: 32px;
  transition: color 0.2s ease;
}
summary:hover {
  color: var(--brand);
}
summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 400;
  color: var(--brand);
  transition: transform 0.3s ease;
}
details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}
summary::-webkit-details-marker {
  display: none;
}
details p {
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(226, 232, 240, 0.6);
  color: var(--muted);
  line-height: 1.7;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(226, 232, 240, 0.8);
  background: linear-gradient(180deg, #fafbfe 0%, #f8f9fc 100%);
  backdrop-filter: blur(10px);
}
.foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100px;
  color: #94a3b8;
  font-size: 14px;
}
.foot p {
  margin: 0;
  font-weight: 500;
}

/* Responsive */
@media (max-width: 1000px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .plans {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 48px;
  }
  .hero {
    padding: 80px 0 60px;
  }
  .features h2,
  .whats-inside h2,
  .examples h2,
  .pricing h2,
  .faq h2 {
    font-size: 36px;
  }
}

/* Small screen padding fix */
@media (max-width: 640px) {
  .container {
    padding: 0 24px;
  }
  .section {
    padding-top: 60px;
    padding-bottom: 40px;
  }
  .hero {
    padding-top: 60px;
    padding-bottom: 40px;
  }
  .hero h1 {
    font-size: 36px;
    margin-bottom: 20px;
  }
  .lead {
    font-size: 18px;
  }
  .hero-card {
    padding: 40px 28px;
  }
  .card-title {
    font-size: 28px;
  }
  .card-subtitle {
    font-size: 16px;
    margin-bottom: 24px;
  }
  .card-cta {
    padding: 14px 28px;
    font-size: 15px;
  }
  .features,
  .whats-inside,
  .examples,
  .pricing,
  .faq {
    padding-top: 60px;
  }
  .features h2,
  .whats-inside h2,
  .examples h2,
  .pricing h2,
  .faq h2 {
    font-size: 32px;
    margin-bottom: 32px;
  }
  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }
  .cta-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .foot {
    flex-direction: column;
    gap: 8px;
    height: auto;
    padding: 32px 0;
    text-align: center;
  }
  .card,
  .inside-list li,
  blockquote.example,
  .plan,
  details {
    padding: 24px;
  }
  .price {
    font-size: 44px;
  }
  .badge {
    top: 16px;
    right: 16px;
    font-size: 11px;
    padding: 6px 12px;
  }
}