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

:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --surface2: #1e1e1e;
  --border: #2a2a2a;
  --text: #ffffff;
  --text-secondary: #aaaaaa;
  --text-muted: #666666;
  --accent: #6B0F1A;
  --accent-light: #9B1A2A;
  --accent-glow: rgba(107, 15, 26, 0.4);
  --green: #2ECC71;
  --radius: 16px;
  --radius-lg: 24px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s;
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
}

.logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
}

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

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

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.btn-sm { padding: 9px 20px; font-size: 13px; background: var(--accent); color: #fff; }
.btn-sm:hover { background: var(--accent-light); transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 32px var(--accent-glow); }

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--text-secondary); transform: translateY(-2px); }

.btn-lg { padding: 16px 32px; font-size: 16px; }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(107,15,26,0.25) 0%, transparent 70%),
              radial-gradient(ellipse 40% 40% at 20% 80%, rgba(107,15,26,0.1) 0%, transparent 60%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding-top: 60px;
  padding-bottom: 100px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(107,15,26,0.2);
  border: 1px solid rgba(107,15,26,0.4);
  color: #ff6b7a;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-text h1 {
  font-size: clamp(42px, 5vw, 68px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #ff6b7a, var(--accent-light), #ff9a6b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.stat { display: flex; flex-direction: column; }
.stat-num { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; }
.stat-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.stat-divider { width: 1px; height: 36px; background: var(--border); }

.hero-phones {
  position: relative;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone {
  position: absolute;
  border-radius: 36px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.06);
}

.phone img { width: 100%; height: 100%; object-fit: cover; display: block; }

.phone-front {
  width: 220px;
  height: 476px;
  z-index: 2;
  transform: translateX(20px) rotate(2deg);
}

.phone-back {
  width: 200px;
  height: 432px;
  z-index: 1;
  transform: translateX(-80px) rotate(-4deg);
  opacity: 0.7;
}

.hero-wave {
  position: absolute;
  bottom: 0; left: 0; right: 0;
}

.hero-wave svg { display: block; width: 100%; }

/* ── SECTIONS COMMON ── */
.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #ff6b7a;
  margin-bottom: 12px;
  text-align: center;
}

.section-title {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.1;
  text-align: center;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 17px;
  color: var(--text-secondary);
  text-align: center;
  max-width: 560px;
  margin: 0 auto 60px;
  line-height: 1.7;
}

/* ── FEATURES ── */
.features {
  padding: 100px 0;
  background: var(--bg);
}

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

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: rgba(107,15,26,0.5);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── HOW IT WORKS ── */
.how {
  padding: 100px 0;
  background: var(--surface);
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-top: 60px;
}

.step {
  flex: 1;
  max-width: 280px;
  text-align: center;
  padding: 0 20px;
}

.step-num {
  font-size: 48px;
  font-weight: 900;
  color: rgba(107,15,26,0.4);
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.step-arrow {
  font-size: 28px;
  color: var(--border);
  padding-top: 20px;
  flex-shrink: 0;
}

/* ── SHOWCASE ── */
.showcase {
  padding: 100px 0;
  background: var(--bg);
  overflow: hidden;
}

.showcase-scroll {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-top: 60px;
  flex-wrap: wrap;
}

.showcase-phone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.showcase-phone img {
  width: 200px;
  border-radius: 28px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
  transition: transform 0.3s;
}

.showcase-phone:hover img { transform: translateY(-8px); }

.showcase-phone span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ── SECURITY ── */
.security {
  padding: 100px 0;
  background: var(--surface);
}

.security-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.security-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

.security-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 500;
}

.check {
  width: 24px;
  height: 24px;
  background: rgba(46,204,113,0.15);
  color: var(--green);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
}

.security-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
}

.sec-icon {
  font-size: 52px;
  margin-bottom: 20px;
}

.security-card h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 12px;
}

.security-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.sec-badges {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.sec-badge {
  background: rgba(107,15,26,0.2);
  border: 1px solid rgba(107,15,26,0.4);
  color: #ff6b7a;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* ── FAQ ── */
.faq {
  padding: 100px 0;
  background: var(--bg);
}

.faq-list {
  max-width: 720px;
  margin: 60px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-item[open] { border-color: rgba(107,15,26,0.5); }

.faq-item summary {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 22px;
  color: var(--text-muted);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: '−';
  color: #ff6b7a;
}

.faq-item p {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── DOWNLOAD ── */
.download {
  padding: 120px 0;
  background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(107,15,26,0.3) 0%, transparent 70%), var(--surface);
}

.download-inner {
  text-align: center;
}

.download-inner h2 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 900;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.download-inner p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.download-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── FOOTER ── */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 12px;
  max-width: 260px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-text h1 { font-size: 48px; }
  .hero-sub { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-phones { height: 400px; }
  .phone-front { width: 180px; height: 390px; }
  .phone-back { width: 160px; height: 346px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .security-inner { grid-template-columns: 1fr; gap: 40px; }
  .security-text .section-title { text-align: center; }
  .security-list { align-items: flex-start; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 600px) {
  .nav-links { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); padding: 0; }
  .hero-phones { height: 320px; }
  .phone-front { width: 150px; height: 325px; }
  .phone-back { width: 130px; height: 281px; }
}