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

:root {
  --color-bg: #0a0a0b;
  --color-bg-elevated: #141416;
  --color-bg-card: #1a1a1f;
  --color-border: #2a2a30;
  --color-text: #f5f5f7;
  --color-text-secondary: #8e8e93;
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-accent: #22c55e;
  --color-warning: #f59e0b;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, monospace;
  --max-width: 1200px;
  --radius: 8px;
  --radius-lg: 12px;
}

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: 1.25rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-small {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.125rem;
}

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

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text-secondary);
  background: var(--color-bg-elevated);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.nav .btn {
  color: var(--color-text);
}

/* Hero */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  background: radial-gradient(ellipse at center top, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
}

.hero h1 {
  margin-bottom: 24px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-badges {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.badge {
  padding: 6px 12px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

/* Problem Section */
.problem {
  padding: 100px 0;
  background: var(--color-bg-elevated);
}

.problem h2 {
  text-align: center;
  margin-bottom: 60px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.problem-card {
  padding: 32px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.problem-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
  border-radius: var(--radius);
  font-weight: 700;
  margin-bottom: 16px;
}

.problem-card h3 {
  margin-bottom: 8px;
}

.problem-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

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

.features h2 {
  text-align: center;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s, transform 0.2s;
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.feature-card h3 {
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* Comparison Table */
.comparison {
  padding: 100px 0;
  background: var(--color-bg-elevated);
}

.comparison h2 {
  text-align: center;
  margin-bottom: 60px;
}

.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

th, td {
  padding: 16px 24px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-bg-card);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

th.highlight, td.highlight {
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-text);
}

th.highlight {
  color: var(--color-primary);
}

tbody tr:last-child td {
  border-bottom: none;
}

/* Pricing */
.pricing {
  padding: 100px 0;
}

.pricing h2 {
  text-align: center;
  margin-bottom: 12px;
}

.pricing-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 60px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  position: relative;
  padding: 40px 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--color-primary);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--color-bg-card) 100%);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--color-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-tier {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.pricing-price {
  margin-bottom: 32px;
}

.pricing-price .price {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.pricing-price .period {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.pricing-features {
  list-style: none;
  flex: 1;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 8px 0;
  padding-left: 28px;
  position: relative;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.pricing-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322c55e' stroke-width='2'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: contain;
}

.pricing-btn {
  width: 100%;
}

/* Waitlist */
.waitlist {
  padding: 100px 0;
  background: var(--color-bg-elevated);
}

.waitlist h2 {
  text-align: center;
  margin-bottom: 12px;
}

.waitlist-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 48px;
}

.waitlist-form {
  max-width: 500px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-secondary);
}

.waitlist-form .btn {
  width: 100%;
}

.form-success {
  text-align: center;
  padding: 40px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
  max-width: 500px;
  margin: 0 auto;
}

.form-success p {
  color: var(--color-accent);
  font-size: 1.125rem;
  font-weight: 500;
}

.hidden {
  display: none;
}

/* Footer */
.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 32px;
}

.footer-brand p {
  color: var(--color-text-secondary);
  margin-top: 8px;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav {
    gap: 16px;
  }
  
  .nav a:not(.btn) {
    display: none;
  }
  
  .hero {
    padding: 120px 0 80px;
  }
  
  .problem, .features, .comparison, .pricing, .waitlist {
    padding: 80px 0;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  table {
    font-size: 0.85rem;
  }
  
  th, td {
    padding: 12px 16px;
  }
}