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

:root {
  --accent: #007aff;
  --accent-light: #5ac8fa;
  --accent-bg: #eef6ff;
  --bg: #ffffff;
  --bg-secondary: #f9fafb;
  --text: #111827;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --border: #e5e7eb;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

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

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- NAV ---- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.15s;
}

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

/* ---- HERO ---- */

.hero {
  padding: 140px 0 80px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text);
  max-width: 600px;
}

.hero-sub {
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 520px;
}

/* ---- SECTIONS ---- */

.section {
  padding: 72px 0;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 24px;
}

/* ---- APPS ---- */

.app-card {
  display: flex;
  gap: 24px;
  padding: 28px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: flex-start;
}

.app-icon {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  border-radius: 14px;
}

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

.app-info p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.app-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-bg);
  padding: 5px 12px;
  border-radius: 20px;
}

/* ---- ABOUT ---- */

.about-text {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 580px;
}

/* ---- CONTACT ---- */

.contact-text {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.contact-email {
  display: inline-block;
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s;
}

.contact-email:hover {
  border-color: var(--accent);
}

.contact-location {
  margin-top: 12px;
  font-size: 14px;
  color: var(--text-tertiary);
}

/* ---- FOOTER ---- */

.footer {
  padding: 32px 0;
  margin-top: 40px;
  border-top: 1px solid var(--border);
}

.footer-copy {
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-copy a {
  color: var(--text-secondary);
  transition: color 0.15s;
}

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

/* ---- LEGAL / PRIVACY ---- */

.legal-content h2 {
  font-size: 20px;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--text);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.legal-content ul {
  margin-bottom: 12px;
  padding-left: 24px;
}

.legal-content li {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 8px;
}

.legal-content a {
  color: var(--accent);
}

/* ---- RESPONSIVE ---- */

@media (max-width: 768px) {
  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero-sub {
    font-size: 16px;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 24px;
  }

  .app-card {
    flex-direction: column;
    gap: 16px;
  }

}