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

:root {
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --green-400: #4ade80;
  --navy-900: #0d1117;
  --navy-800: #131923;
  --navy-700: #1a2333;
  --navy-600: #1e2d45;
  --card-bg: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --text-primary: #f0f6ff;
  --text-secondary: #8b9ab0;
  --text-muted: #556070;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-glow: 0 0 80px rgba(59,130,246,0.18);
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background-color: var(--navy-900);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Utility ── */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 100px 0; }

.gradient-text {
  background: linear-gradient(135deg, var(--blue-400) 0%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-500) 0%, var(--blue-700) 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(59,130,246,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(59,130,246,0.5);
}
.btn-primary:active { transform: translateY(0); }

.btn-sm { padding: 8px 18px; font-size: 0.875rem; }

/* ── App Store Badge ── */
.appstore-badge {
  display: inline-block;
  transition: var(--transition);
}
.appstore-badge:hover { transform: scale(1.04); }
.appstore-badge img { border-radius: 12px; }

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(13,17,23,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition);
}
.nav.scrolled {
  background: rgba(13,17,23,0.92);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  flex-shrink: 0;
  letter-spacing: -0.01em;
}
.nav-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  gap: 28px;
  flex: 1;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 100px 24px 60px;
  overflow: hidden;
}

.hero-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: -1;
}
.glow-1 {
  width: 600px;
  height: 600px;
  top: -100px;
  left: -200px;
  background: rgba(59,130,246,0.14);
}
.glow-2 {
  width: 500px;
  height: 500px;
  bottom: 0;
  right: -150px;
  background: rgba(167,139,250,0.10);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid rgba(59,130,246,0.3);
  background: rgba(59,130,246,0.08);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--blue-400);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue-400);
  box-shadow: 0 0 6px var(--blue-400);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

.hero-screenshot {
  display: flex;
  justify-content: center;
  align-items: center;
}
.screenshot-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.07);
  transition: transform 0.6s cubic-bezier(0.4,0,0.2,1);
  will-change: transform;
}
.screenshot-frame:hover { transform: translateY(-6px) scale(1.01); }
.screenshot-frame img { width: 100%; }

/* ── TAGS STRIP ── */
.tags-strip {
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  background: var(--navy-800);
  padding: 20px 0;
}
.tags-list {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.tag {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 50px;
  border: 1px solid var(--card-border);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--card-bg);
}
.tag-icon { font-size: 1rem; }

/* ── SECTION HEADER ── */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-400);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── FEATURES ── */
.features { background: var(--navy-900); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59,130,246,0.25);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.feature-card--accent {
  background: linear-gradient(135deg, rgba(59,130,246,0.12) 0%, rgba(167,139,250,0.08) 100%);
  border-color: rgba(59,130,246,0.2);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.2);
  margin-bottom: 20px;
}
.feature-icon-wrap svg {
  width: 22px;
  height: 22px;
  color: var(--blue-400);
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── SCREENSHOTS SECTION ── */
.screenshots { background: var(--navy-800); }

.screenshots-list {
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.screenshot-item {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: center;
}
.screenshot-item--reverse { direction: rtl; }
.screenshot-item--reverse > * { direction: ltr; }

.screenshot-meta h3 {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}
.screenshot-meta p {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}

.feature-list { display: flex; flex-direction: column; gap: 10px; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.feature-list li::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-500), #818cf8);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
  margin-top: 2px;
}

.screenshot-img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.06);
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}
.screenshot-img-wrap:hover { transform: translateY(-4px); }
.screenshot-img-wrap img { width: 100%; }

/* ── PRIVACY ── */
.privacy { background: var(--navy-900); }
.privacy-card {
  background: linear-gradient(135deg, rgba(59,130,246,0.06) 0%, rgba(167,139,250,0.04) 100%);
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: var(--radius-xl);
  padding: 72px 64px;
  text-align: center;
}

.privacy-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(167,139,250,0.1));
  border: 1px solid rgba(59,130,246,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 40px;
}
.privacy-icon-wrap svg {
  width: 32px; height: 32px;
  color: var(--blue-400);
}

.privacy-pillars {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 28px;
  margin: 56px 0 48px;
  text-align: left;
}
.privacy-pillar {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: transform var(--transition), border-color var(--transition);
}
.privacy-pillar:hover {
  transform: translateY(-3px);
  border-color: rgba(59,130,246,0.2);
}
.pillar-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(59,130,246,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.pillar-icon svg { width: 20px; height: 20px; color: var(--blue-400); }
.privacy-pillar h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.privacy-pillar p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.privacy-notice {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: rgba(74, 222, 128, 0.06);
  border: 1px solid rgba(74,222,128,0.2);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  text-align: left;
}
.privacy-notice svg {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--green-400);
  margin-top: 2px;
}
.privacy-notice p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}
.privacy-notice strong { color: var(--text-primary); }

/* ── CTA ── */
.cta { background: var(--navy-800); }
.cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}
.cta-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  box-shadow: 0 8px 30px rgba(59,130,246,0.25);
  margin-bottom: 8px;
}
.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.cta-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* ── SUPPORT ── */
.support { background: var(--navy-900); }
.support-card {
  max-width: 520px;
  margin: 0 auto;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.support-card:hover {
  border-color: rgba(59,130,246,0.2);
  box-shadow: 0 16px 50px rgba(0,0,0,0.3);
}
.support-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(167,139,250,0.1));
  border: 1px solid rgba(59,130,246,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}
.support-icon svg { width: 28px; height: 28px; color: var(--blue-400); }
.support-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.support-card p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.7;
}
.support-email-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 16px;
  margin-bottom: 0;
}

/* ── FOOTER ── */
.footer {
  border-top: 1px solid var(--card-border);
  background: var(--navy-900);
  padding: 40px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  flex-shrink: 0;
}
.footer-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}
.footer-links {
  display: flex;
  gap: 24px;
  flex: 1;
}
.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text-primary); }
.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: auto;
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.4,0,0.2,1), transform 0.65s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible { opacity: 1; transform: none; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .privacy-pillars { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 120px;
  }
  .hero-subtitle { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-screenshot { order: -1; }

  .nav-links { display: none; }

  .screenshot-item { grid-template-columns: 1fr; gap: 32px; }
  .screenshot-item--reverse { direction: ltr; }

  .features-grid { grid-template-columns: 1fr; }
  .privacy-pillars { grid-template-columns: 1fr 1fr; }
  .privacy-card { padding: 40px 24px; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
  .footer-copy { margin-left: 0; }
}

@media (max-width: 480px) {
  .privacy-pillars { grid-template-columns: 1fr; }
  .support-card { padding: 36px 24px; }
  .hero-title { font-size: 2.2rem; }
}