:root {
  --color-ink-primary: #1C1C1E;
  --color-ink-secondary: #3A3A3C;
  --color-ink-tertiary: #8E8E93;
  --color-bg-light: #F2F2F7;
  --color-accent-blue: #007AFF;
  --color-accent-green: #34C759;
  --color-white: #FFFFFF;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(242, 242, 247, 0.8);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  z-index: 1000;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--color-ink-secondary);
  transition: color 0.3s;
}

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

/* Hero Section */
.hero {
  padding: 160px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--color-ink-primary) 0%, var(--color-ink-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.5rem;
  color: var(--color-ink-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  background-color: var(--color-ink-primary);
  color: var(--color-white);
  border-radius: 99px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: transform 0.3s, background-color 0.3s;
}

.cta-button:hover {
  transform: translateY(-2px);
  background-color: #000;
}

.hero-image {
  margin-top: 4rem;
  border-radius: 40px;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,0.1);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-image img {
  width: 100%;
  display: block;
}

/* Features */
.features {
  padding: 100px 0;
  background-color: var(--color-white);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.feature-card {
  padding: 3rem;
  border-radius: 32px;
  background-color: var(--color-bg-light);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-10px);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--color-ink-secondary);
}

/* Footer */
footer {
  padding: 80px 0 40px;
  background-color: var(--color-white);
  border-top: 1px solid rgba(0,0,0,0.05);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 4rem;
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-desc {
  color: var(--color-ink-tertiary);
}

.footer-links {
  display: flex;
  gap: 4rem;
}

.footer-group h4 {
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-ink-tertiary);
}

.footer-group ul {
  list-style: none;
}

.footer-group ul li {
  margin-bottom: 0.75rem;
}

.footer-group ul li a {
  color: var(--color-ink-secondary);
  transition: color 0.3s;
}

.footer-group ul li a:hover {
  color: var(--color-ink-primary);
}

.footer-bottom {
  text-align: center;
  color: var(--color-ink-tertiary);
  font-size: 0.9rem;
}

/* Legal Pages */
.legal-page {
  padding: 160px 0 80px;
  max-width: 800px;
  margin: 0 auto;
}

.legal-page h1 {
  font-size: 3rem;
  margin-bottom: 3rem;
}

.legal-content h2 {
  margin: 2rem 0 1rem;
}

.legal-content p {
  margin-bottom: 1.5rem;
}

/* 404 Page */
.error-page {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.error-page h1 {
  font-size: 8rem;
  margin-bottom: 1rem;
  color: var(--color-ink-primary);
}

.error-page p {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--color-ink-secondary);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  animation: fadeInUp 1s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-5 { animation-delay: 0.5s; }

@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; gap: 3rem; }
  .footer-links { gap: 2rem; flex-wrap: wrap; }
}