:root {
  --bg-dark: #080C16;
  --bg-card: rgba(16, 24, 40, 0.75);
  --bg-card-hover: rgba(24, 34, 56, 0.9);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(16, 185, 129, 0.3);
  --primary: #10B981;
  --primary-glow: rgba(16, 185, 129, 0.4);
  --secondary: #38BDF8;
  --accent-sun: #F59E0B;
  --accent-purple: #8B5CF6;
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-family);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(56, 189, 248, 0.06) 0%, transparent 45%);
  min-height: 100vh;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(8, 12, 22, 0.85);
  border-bottom: 1px solid var(--border-glass);
  padding: 16px 0;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  box-shadow: 0 0 16px var(--primary-glow);
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.btn-cta {
  background: linear-gradient(135deg, #10B981 0%, #059669 100%);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600 !important;
  font-size: 14px;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-block;
  text-decoration: none;
}

.btn-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid var(--border-accent);
  border-radius: 999px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 19px;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-banner {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 40px rgba(16, 185, 129, 0.2);
  border: 1px solid var(--border-glass);
  margin-top: 40px;
}

.hero-banner img {
  width: 100%;
  height: auto;
  display: block;
}

/* Features Grid */
.features {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 12px;
}

.section-title p {
  color: var(--text-secondary);
  font-size: 16px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  padding: 32px;
  backdrop-filter: blur(12px);
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--primary);
}

.card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.55;
}

/* Screenshots Showcase Carousel */
.screenshots-section {
  padding: 60px 0 100px;
  overflow: hidden;
}

.screenshots-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 20px 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.screenshot-item {
  flex: 0 0 280px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.5);
  border: 2px solid var(--border-glass);
  scroll-snap-align: start;
}

.screenshot-item img {
  width: 100%;
  display: block;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-glass);
  padding: 48px 0;
  margin-top: 60px;
  color: var(--text-muted);
  font-size: 14px;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
}

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

/* Content Page Layout (Privacy / Delete Account) */
.content-box {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 48px;
  margin: 40px auto 80px;
  max-width: 820px;
}

.content-box h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
}

.content-box .meta-date {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 16px;
}

.content-box h2 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin: 32px 0 12px;
}

.content-box p, .content-box ul {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 16px;
}

.content-box ul {
  padding-left: 24px;
}

.content-box li {
  margin-bottom: 8px;
}

.callout-box {
  background: rgba(16, 185, 129, 0.08);
  border-left: 4px solid var(--primary);
  padding: 18px 20px;
  border-radius: 8px;
  margin: 24px 0;
}

.callout-box p {
  margin: 0;
  color: #E2E8F0;
}

.btn-danger {
  background: #EF4444;
  color: #fff;
  padding: 12px 24px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
  margin-top: 16px;
}

@media (max-width: 768px) {
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 16px; }
  .content-box { padding: 24px; }
  .nav-links { display: none; }
}