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

:root {
  --teal:       #1A6B6B;
  --teal-light: #e8f4f4;
  --teal-mid:   #2E9E9E;
  --text:       #111827;
  --muted:      #6B7280;
  --border:     #E5E7EB;
  --bg:         #FFFFFF;
  --surface:    #F9FAFB;
  --radius:     12px;
  --max:        720px;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── Layout ────────────────────────────────────────────────── */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Navigation ────────────────────────────────────────────── */
nav {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--teal);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.nav-brand .logo-mark {
  width: 32px;
  height: 32px;
  background: var(--teal);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 0.9rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s;
}

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

/* ─── Hero ──────────────────────────────────────────────────── */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: var(--teal-light);
  color: var(--teal);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 16px;
}

.hero h1 span { color: var(--teal); }

.hero p {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 480px;
  margin: 0 auto 40px;
}

/* ─── Download Buttons ──────────────────────────────────────── */
.download-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--text);
  color: #fff;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  transition: opacity 0.15s, transform 0.15s;
  line-height: 1.3;
}

.btn-store:hover { opacity: 0.85; transform: translateY(-1px); }

.btn-store .store-icon { font-size: 1.4rem; flex-shrink: 0; }

.btn-store .store-label { font-size: 0.65rem; opacity: 0.75; display: block; }
.btn-store .store-name  { font-size: 0.9rem; font-weight: 700; display: block; }

/* ─── Features ──────────────────────────────────────────────── */
.features {
  padding: 64px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-top: 40px;
}

.feature-card {
  text-align: center;
  padding: 24px 16px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--teal-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.4rem;
}

.feature-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

/* ─── Section headings ──────────────────────────────────────── */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 8px;
}

/* ─── Footer ────────────────────────────────────────────────── */
footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  margin-top: 80px;
}

footer .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

footer p { font-size: 0.8rem; color: var(--muted); }

footer .footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
  flex-wrap: wrap;
}

footer .footer-links a {
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

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

/* ─── Legal / Support Pages ─────────────────────────────────── */
.page-header {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}

.page-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 8px;
}

.page-header .meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.legal-body {
  padding-bottom: 80px;
}

.legal-body h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin: 40px 0 12px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.legal-body h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin: 24px 0 8px;
}

.legal-body p {
  font-size: 0.9rem;
  color: #374151;
  margin-bottom: 12px;
  line-height: 1.7;
}

.legal-body ul, .legal-body ol {
  margin: 8px 0 16px 20px;
}

.legal-body li {
  font-size: 0.9rem;
  color: #374151;
  margin-bottom: 6px;
  line-height: 1.6;
}

.legal-body a { color: var(--teal); text-decoration: none; }
.legal-body a:hover { text-decoration: underline; }

.legal-body .highlight-box {
  background: var(--teal-light);
  border-left: 3px solid var(--teal);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
}

.legal-body .highlight-box p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--teal);
  font-weight: 500;
}

/* ─── Support Page ──────────────────────────────────────────── */
.support-contact {
  background: var(--teal);
  color: #fff;
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
  text-align: center;
}

.support-contact h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.support-contact p {
  font-size: 0.9rem;
  opacity: 0.85;
  margin-bottom: 20px;
}

.support-contact a {
  display: inline-block;
  background: #fff;
  color: var(--teal);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 24px;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity 0.15s;
}

.support-contact a:hover { opacity: 0.9; }

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}

.faq-item:last-child { border-bottom: none; }

.faq-item h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.faq-item p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

.faq-item a { color: var(--teal); text-decoration: none; }
.faq-item a:hover { text-decoration: underline; }

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 600px) {
  .nav-links { display: none; }
  .hero { padding: 56px 0 48px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  footer .inner { flex-direction: column; align-items: flex-start; }
}