:root {
  --green: #1f8a4c;
  --green-dark: #0b8848;
  --green-deep: #126a3a;
  --ink: #1c1c1e;
  --muted: #6b6b70;
  --bg: #ffffff;
  --bg-alt: #f5f6f5;
  --card: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
  --radius: 20px;
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --green: #3ccd6b;
    --green-dark: #2fb85f;
    --ink: #f2f2f5;
    --muted: #9a9aa2;
    --bg: #0d0f0e;
    --bg-alt: #15191700;
    --bg-alt: #141716;
    --card: #1a1e1c;
    --border: rgba(255, 255, 255, 0.1);
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  }
}

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

html { scroll-behavior: smooth; }

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

h1, h2, h3 { line-height: 1.1; letter-spacing: -0.02em; }

img { max-width: 100%; display: block; }

a { color: var(--green); text-decoration: none; }

section { padding: 0 24px; }

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--border);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
  font-size: 1.05rem;
}
.nav-brand img { border-radius: 8px; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--muted); font-weight: 500; font-size: 0.95rem; }
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  background: var(--green-dark);
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600 !important;
}
.nav-cta:hover { filter: brightness(1.05); }
.lang { color: var(--muted); font-size: 0.9rem; font-weight: 600; white-space: nowrap; }
.lang a { color: var(--muted); }
.lang a:hover { color: var(--ink); }
.lang strong { color: var(--ink); }

/* ===== Hero ===== */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 72px;
}
.hero-icon {
  border-radius: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.hero h1 { font-size: clamp(2.6rem, 6vw, 4rem); font-weight: 800; }
.hero-tagline {
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  color: var(--green);
  font-weight: 600;
  margin-top: 8px;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--muted);
  margin-top: 18px;
  max-width: 30ch;
}
.hero-actions { margin-top: 28px; }
.hero-trust {
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
}

/* App Store badge */
.appstore-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--ink);
  color: var(--bg);
  padding: 12px 22px;
  border-radius: 14px;
  transition: transform 0.15s ease, filter 0.15s ease;
}
.appstore-badge:hover { transform: translateY(-2px); filter: brightness(1.08); }
.appstore-badge svg { color: var(--bg); }
.appstore-badge span { display: flex; flex-direction: column; line-height: 1.15; text-align: left; }
.appstore-badge small { font-size: 0.7rem; opacity: 0.85; }
.appstore-badge strong { font-size: 1.25rem; font-weight: 600; }

/* Phone mockup */
.hero-shot { display: flex; justify-content: center; }
.phone {
  position: relative;
  width: 280px;
  border-radius: 44px;
  padding: 12px;
  background: linear-gradient(160deg, #2a2a2e, #050505);
  box-shadow: var(--shadow);
}
.phone img { border-radius: 32px; display: block; width: 100%; }
.phone-sm { width: 230px; border-radius: 38px; padding: 10px; }
.phone-sm img { border-radius: 28px; }

/* ===== Stats ===== */
.stats {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 36px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.stats strong { display: block; font-size: 2.4rem; font-weight: 800; color: var(--green); }
.stats span { font-size: 0.9rem; color: var(--muted); }

/* ===== Section headings ===== */
.features, .showcase { max-width: var(--max); margin: 0 auto; padding-top: 88px; padding-bottom: 88px; text-align: center; }
.features h2, .showcase h2, .cta h2, .privacy h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; }
.section-sub { color: var(--muted); margin-top: 12px; font-size: 1.1rem; }

/* ===== Feature grid ===== */
.feature-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: left;
}
.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon { font-size: 1.8rem; margin-bottom: 12px; }
.feature h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature p { font-size: 0.95rem; color: var(--muted); }

/* ===== Showcase ===== */
.showcase { background: var(--bg-alt); max-width: none; padding-left: 24px; padding-right: 24px; }
.showcase > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.shot-row {
  margin-top: 52px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-end;
  gap: 40px;
}
.shot { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.shot figcaption { color: var(--muted); font-weight: 600; font-size: 0.95rem; }
.raw-shot {
  border-radius: 18px;
  box-shadow: var(--shadow);
  max-height: 360px;
  width: auto;
}
.raw-shot.watch { max-height: 300px; border-radius: 26px; }

/* ===== Privacy ===== */
.privacy { padding-top: 88px; padding-bottom: 88px; text-align: center; }
.privacy-inner { max-width: 680px; margin: 0 auto; }
.privacy p { margin-top: 18px; font-size: 1.15rem; color: var(--muted); }
.privacy strong { color: var(--ink); }
.manifesto {
  font-style: italic;
  font-size: 1.25rem !important;
  color: var(--green) !important;
  margin-top: 28px !important;
}
.link-arrow { display: inline-block; margin-top: 24px; font-weight: 600; }
.link-arrow:hover { text-decoration: underline; }

/* ===== CTA ===== */
.cta {
  max-width: var(--max);
  margin: 0 auto 48px;
  text-align: center;
  padding: 72px 32px;
  border-radius: 32px;
  background: linear-gradient(160deg, var(--green), var(--green-deep));
  color: #fff;
}
.cta h2 { color: #fff; }
.cta p { margin: 14px 0 30px; font-size: 1.15rem; opacity: 0.92; }
.cta .appstore-badge { background: #fff; color: var(--green-deep); }
.cta .appstore-badge svg, .cta .appstore-badge strong, .cta .appstore-badge small { color: var(--green-deep); }

/* ===== Footer ===== */
.footer { max-width: 760px; margin: 0 auto; padding: 40px 24px 64px; text-align: center; }
.footer-disclaimer { font-size: 0.8rem; color: var(--muted); background: var(--bg-alt); padding: 16px 20px; border-radius: 14px; }
.footer-meta { margin-top: 20px; font-size: 0.9rem; color: var(--muted); }
.footer-meta a { color: var(--muted); }
.footer-meta a:hover { color: var(--ink); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 48px; }
  .hero-icon, .hero-sub { margin-left: auto; margin-right: auto; }
  .hero h1 { font-size: clamp(2.2rem, 9vw, 3.4rem); }
  .hero-sub { max-width: 34ch; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .nav-links { gap: 14px; }
  .nav-links > a:not(.nav-cta) { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
  .feature-grid { grid-template-columns: 1fr; }
  .cta { border-radius: 24px; padding: 56px 24px; }
}