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

:root {
  --teal: #6DC5D1;
  --cream: #FDE49E;
  --amber: #FEB941;
  --deep-orange: #DD761C;
  --white: #FFFFFF;
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F5;
  --gray-400: #9CA3AF;
  --gray-600: #4B5563;
  --gray-900: #111827;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

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

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--deep-orange);
  letter-spacing: -0.5px;
}

.nav-cta {
  background: var(--deep-orange);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.nav-cta:hover {
  opacity: 0.9;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 12px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.2s;
}

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

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--deep-orange);
  border: 2px solid var(--deep-orange);
}

.btn-secondary:hover {
  background: var(--deep-orange);
  color: var(--white);
}

.btn-large {
  padding: 18px 48px;
  font-size: 18px;
}

/* ── Hero ── */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(180deg, var(--white) 0%, rgba(253, 228, 158, 0.15) 100%);
}

.hero-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.highlight {
  color: var(--deep-orange);
}

.hero-subtitle {
  font-size: 18px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 40px;
}

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

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

.section-title {
  text-align: center;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  margin-bottom: 60px;
  letter-spacing: -0.5px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
  border-radius: 16px;
  background: var(--gray-50);
  transition: transform 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ── Walkers ── */
.walkers {
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(109, 197, 209, 0.08) 0%, rgba(253, 228, 158, 0.15) 100%);
}

.walkers-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.walkers-subtitle {
  font-size: 17px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 40px;
}

.walkers-perks {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.perk {
  background: var(--white);
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-900);
  border: 1px solid rgba(109, 197, 209, 0.4);
}

/* ── Trust ── */
.trust {
  padding: 100px 0;
  background: var(--white);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
}

.trust-item {
  padding: 24px;
}

.trust-item strong {
  display: block;
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--deep-orange);
}

.trust-item p {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ── Download ── */
.download {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--deep-orange) 0%, #c4640f 100%);
  color: var(--white);
}

.download-inner {
  text-align: center;
}

.download h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  margin-bottom: 16px;
}

.download p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 40px;
}

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

.coming-soon {
  font-size: 14px;
  opacity: 0.7;
  margin-top: 16px;
}

/* ── Footer ── */
.footer {
  padding: 48px 0;
  background: var(--gray-900);
  color: var(--gray-400);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer .logo {
  color: var(--white);
}

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

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

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

.copyright {
  font-size: 13px;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .hero {
    padding: 120px 0 80px;
  }

  .features, .walkers, .trust, .download {
    padding: 72px 0;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
}