:root {
  --color-bg: #fafbfc;
  --color-surface: #ffffff;
  --color-text: #0a2540;
  --color-text-secondary: #425466;
  --color-border: #e6e8eb;
  --color-accent: #00c2a8;
  --color-accent-hover: #00a890;
  --color-positive: #0d9488;
  --color-negative: #dc2626;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(10, 37, 64, 0.06);
  --shadow-lg: 0 12px 40px rgba(10, 37, 64, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-decoration: none;
}

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

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color 0.15s ease;
}

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

.nav-cta {
  padding: 8px 16px !important;
  font-size: 0.875rem !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  margin: 4px 0;
  transition: 0.2s;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

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

.btn-primary:active {
  transform: translateY(1px);
}

/* Hero */
.hero {
  padding: 80px 0 100px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}

.hero h1 {
  font-size: 3.25rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 480px;
}

/* Forms */
.waitlist-form {
  max-width: 440px;
}

.form-group {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.waitlist-form input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  background: var(--color-surface);
  transition: border-color 0.15s ease;
}

.waitlist-form input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 194, 168, 0.12);
}

.form-note {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: 8px;
}

.success-message {
  color: var(--color-positive);
  font-weight: 500;
  margin-top: 8px;
}

/* Dashboard preview */
.dashboard-preview {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  background: #f8fafc;
}

.dashboard-title {
  font-weight: 600;
  font-size: 0.9375rem;
}

.badge {
  background: #e6f7f5;
  color: var(--color-positive);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

th {
  text-align: left;
  padding: 12px 20px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: #f8fafc;
  border-bottom: 1px solid var(--color-border);
}

td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
}

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

.positive {
  color: var(--color-positive);
  font-weight: 500;
}

.negative {
  color: var(--color-negative);
  font-weight: 500;
}

.preview-note {
  padding: 12px 20px;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  background: #f8fafc;
  border-top: 1px solid var(--color-border);
}

/* Features */
.features {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.features h2,
.why h2,
.coming-soon-section h2,
.final-cta h2 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  text-align: center;
}

.section-intro {
  text-align: center;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto 48px;
  font-size: 1.0625rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

.coming-soon {
  display: inline-block;
  background: #f1f5f9;
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}

/* Why */
.why {
  padding: 80px 0;
}

.why-content {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
}

.why-content p {
  margin-bottom: 16px;
}

.why-content p:last-child {
  margin-bottom: 0;
}

/* Coming soon */
.coming-soon-section {
  padding: 64px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.coming-soon-section p {
  max-width: 560px;
  margin: 0 auto;
  color: var(--color-text-secondary);
}

/* Final CTA */
.final-cta {
  padding: 80px 0;
  text-align: center;
}

.final-cta p {
  max-width: 520px;
  margin: 0 auto 32px;
  color: var(--color-text-secondary);
}

.final-cta .waitlist-form {
  margin: 0 auto;
}

/* Footer */
.footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
}

.footer-brand p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  margin-top: 8px;
}

.footer-meta {
  text-align: right;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.footer-meta p {
  margin-bottom: 6px;
}

.footer-meta a {
  color: var(--color-text);
  text-decoration: none;
}

.footer-meta a:hover {
  text-decoration: underline;
}

.disclaimer {
  max-width: 320px;
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* Responsive */
@media (max-width: 960px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer .container {
    flex-direction: column;
    text-align: left;
  }

  .footer-meta {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--color-border);
    gap: 16px;
  }

  .nav-links.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    padding: 48px 0 64px;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

  .form-group {
    flex-direction: column;
  }

  .features h2,
  .why h2,
  .coming-soon-section h2,
  .final-cta h2 {
    font-size: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .feature-card,
  .btn {
    transition: none;
  }

  .feature-card:hover {
    transform: none;
  }
}