:root {
  --dark-purple: #001237;
  --dark-blue: #171E7D;
  --brand-purple: #812B92;
  --dark-pink: #D44B9E;
  --peach: #FD8574;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  background: #fafafa;
  color: #1d1d1f;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

nav .nav-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 22px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav .nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #1d1d1f;
  font-weight: 600;
  font-size: 18px;
}

nav .nav-brand img {
  width: 32px;
  height: 32px;
  border-radius: 7px;
}

nav .nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

nav .nav-links a {
  text-decoration: none;
  color: #1d1d1f;
  font-size: 14px;
  font-weight: 400;
  opacity: 0.8;
  transition: opacity 0.2s;
}

nav .nav-links a:hover {
  opacity: 1;
}

/* Hero */
.hero {
  padding: 160px 22px 100px;
  text-align: center;
  background: linear-gradient(180deg, #ffffff 0%, #f5f5f7 100%);
}

.hero-icon {
  width: 180px;
  height: 180px;
  border-radius: 36px;
  box-shadow: 0 20px 60px rgba(0, 18, 55, 0.15), 0 8px 20px rgba(129, 43, 146, 0.1);
  margin-bottom: 32px;
}

.hero h1 {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--dark-blue), var(--brand-purple), var(--dark-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .tagline {
  font-size: 24px;
  font-weight: 400;
  color: #6e6e73;
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.4;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--dark-blue), var(--brand-purple));
  color: #fff;
  text-decoration: none;
  border-radius: 980px;
  font-size: 16px;
  font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(129, 43, 146, 0.3);
}

.btn-primary:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 24px rgba(129, 43, 146, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: rgba(0, 0, 0, 0.06);
  color: #1d1d1f;
  text-decoration: none;
  border-radius: 980px;
  font-size: 16px;
  font-weight: 500;
  transition: background 0.2s;
}

.btn-secondary:hover {
  background: rgba(0, 0, 0, 0.1);
}

/* Features */
.features {
  padding: 100px 22px;
  max-width: 980px;
  margin: 0 auto;
}

.features h2 {
  text-align: center;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.features .subtitle {
  text-align: center;
  font-size: 18px;
  color: #6e6e73;
  margin-bottom: 64px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px 28px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.feature-card .feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 15px;
  color: #6e6e73;
  line-height: 1.5;
}

.icon-import { background: linear-gradient(135deg, #e8f0fe, #d4e4fc); }
.icon-organize { background: linear-gradient(135deg, #f3e8fc, #e8d4fc); }
.icon-duplicates { background: linear-gradient(135deg, #fce8f0, #fcd4e8); }
.icon-verify { background: linear-gradient(135deg, #e8fce8, #d4fcd4); }
.icon-domains { background: linear-gradient(135deg, #fcf3e8, #fce8d4); }
.icon-export { background: linear-gradient(135deg, #e8f8fc, #d4f0fc); }

/* How it works */
.how-it-works {
  padding: 100px 22px;
  background: #f5f5f7;
}

.how-it-works-inner {
  max-width: 980px;
  margin: 0 auto;
}

.how-it-works h2 {
  text-align: center;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-purple), var(--dark-pink));
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  font-size: 15px;
  color: #6e6e73;
  line-height: 1.5;
}

/* CTA */
.cta-section {
  padding: 100px 22px;
  text-align: center;
}

.cta-section h2 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 18px;
  color: #6e6e73;
  margin-bottom: 32px;
}

/* Footer */
footer {
  padding: 40px 22px;
  text-align: center;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  background: #f5f5f7;
}

footer p {
  font-size: 13px;
  color: #86868b;
}

footer a {
  color: var(--brand-purple);
  text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 36px;
  }

  .hero .tagline {
    font-size: 18px;
  }

  .hero-icon {
    width: 120px;
    height: 120px;
    border-radius: 26px;
  }

  .features h2,
  .how-it-works h2,
  .cta-section h2 {
    font-size: 28px;
  }

  nav .nav-links {
    display: none;
  }
}