:root {
  --bg: #050816;
  --bg-alt: #0b1020;
  --surface: #0f172a;
  --surface-soft: #111827;
  --primary: #6366f1;
  --primary-soft: rgba(99, 102, 241, 0.12);
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: rgba(148, 163, 184, 0.28);
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.75);
  --radius-lg: 1.5rem;
  --radius-xl: 1.8rem;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'SF Pro Text',
    'Segoe UI', sans-serif;
  background: radial-gradient(circle at top, #111827 0, #020617 45%, #020617 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: radial-gradient(circle at top left, #111827 0, #020617 55%);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.75rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

p {
  margin: 0 0 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

ul {
  margin: 0 0 0.9rem 1.2rem;
  padding: 0;
  color: var(--muted);
}

li + li {
  margin-top: 0.35rem;
}

/* Header / Navigation */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.92),
    rgba(15, 23, 42, 0.82),
    transparent
  );
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 0.9rem;
  overflow: hidden;
  background: radial-gradient(circle at 30% 0, #4f46e5, #0f172a 60%, #020617);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.75);
}

.brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-text {
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  font-size: 0.9rem;
}

.nav-link {
  text-decoration: none;
  color: var(--muted);
  padding: 0.35rem 0.1rem;
  border-radius: 999px;
  transition: color 0.18s ease, background-color 0.18s ease;
}

.nav-link:hover {
  color: var(--text);
  background-color: rgba(148, 163, 184, 0.08);
  text-decoration: none;
}

.nav-link-active {
  color: var(--text);
  background-color: rgba(148, 163, 184, 0.18);
}

.nav-cta {
  margin-left: 0.25rem;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease,
    border-color 0.18s ease, box-shadow 0.18s ease, transform 0.08s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white;
  box-shadow: 0 18px 38px rgba(79, 70, 229, 0.45);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  box-shadow: 0 16px 30px rgba(79, 70, 229, 0.55);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: rgba(15, 23, 42, 0.9);
  border-color: rgba(148, 163, 184, 0.4);
  color: var(--text);
}

.btn-secondary:hover {
  background-color: rgba(15, 23, 42, 1);
  border-color: rgba(191, 219, 254, 0.7);
}

.btn:focus-visible {
  outline: 2px solid #e5e7eb;
  outline-offset: 2px;
}

/* Hero */

.hero-section {
  padding-top: 5.5rem;
}

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

.hero-text {
  flex: 1 1 52%;
}

.hero-text h1 {
  font-size: clamp(2.2rem, 3.3vw, 2.9rem);
  margin-bottom: 0.85rem;
}

.hero-subtitle {
  font-size: 0.98rem;
  max-width: 30rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.4rem;
}

.hero-media {
  flex: 1 1 40%;
  display: flex;
  justify-content: center;
}

.phone {
  width: 260px;
  padding: 0.7rem;
  border-radius: 2rem;
  background: radial-gradient(circle at top, #1e293b 0, #020617 80%);
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: var(--shadow-soft);
}

.phone-inner {
  border-radius: 1.5rem;
  padding: 1.6rem 1.2rem 1.3rem;
  background: radial-gradient(circle at 0 0, #4f46e5 0, #020617 50%, #020617 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.phone-icon {
  width: 82px;
  height: 82px;
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid rgba(191, 219, 254, 0.6);
  box-shadow: 0 18px 40px rgba(30, 64, 175, 0.8);
}

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

.phone-app-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: #e5e7eb;
}

.phone-wave {
  width: 100%;
  height: 46px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 0 50%, rgba(129, 140, 248, 0.7) 0, transparent 55%),
    radial-gradient(circle at 50% 50%, rgba(96, 165, 250, 0.8) 0, transparent 55%),
    radial-gradient(circle at 100% 50%, rgba(56, 189, 248, 0.7) 0, transparent 55%);
  opacity: 0.85;
  filter: blur(0.5px);
}

/* Sections */

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-size: 1.5rem;
}

.section-lead {
  max-width: 32rem;
  margin: 0.4rem auto 0;
  font-size: 0.95rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.card {
  border-radius: var(--radius-lg);
  padding: 1.3rem 1.3rem 1.1rem;
  background: linear-gradient(145deg, #020617, #020617);
  border: 1px solid var(--border);
  box-shadow: 0 18px 46px rgba(15, 23, 42, 0.9);
}

.card h3 {
  font-size: 1rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.5rem;
}

.step {
  border-radius: var(--radius-lg);
  padding: 1.3rem 1.3rem 1.1rem;
  background: linear-gradient(145deg, #020617, #020617);
  border: 1px solid var(--border);
}

.step-number {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-soft);
  color: #c7d2fe;
  font-size: 0.86rem;
  margin-bottom: 0.6rem;
}

.faq {
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  gap: 1rem;
}

.faq-item {
  border-radius: 1.1rem;
  padding: 1.1rem 1.2rem;
  background-color: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.33);
}

.faq-item h3 {
  font-size: 0.98rem;
}

.faq-item p:last-child {
  margin-bottom: 0;
}

.faq a {
  color: #a5b4fc;
}

.faq a:hover {
  color: #c7d2fe;
}

/* Privacy policy page */

.policy {
  max-width: 800px;
}

.policy h1 {
  font-size: 1.7rem;
  margin-bottom: 0.3rem;
}

.policy-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1.8rem;
}

.policy section + section {
  margin-top: 1.6rem;
}

.policy h2 {
  font-size: 1.2rem;
}

.policy h3 {
  font-size: 1rem;
  margin-top: 0.9rem;
}

.policy a {
  color: #a5b4fc;
}

.policy a:hover {
  color: #c7d2fe;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  padding: 1.4rem 0 1.6rem;
  background: radial-gradient(circle at top, #020617 0, #020617 100%);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
}

.footer-text {
  margin: 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.footer-link {
  color: var(--muted);
  text-decoration: none;
}

.footer-link:hover {
  color: var(--text);
  text-decoration: none;
}

/* Responsive */

@media (max-width: 840px) {
  .nav-container {
    flex-wrap: wrap;
    padding-inline: 1.1rem;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .nav-cta {
    order: -1;
  }

  .hero {
    flex-direction: column;
    text-align: center;
  }

  .hero-text {
    order: 1;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-media {
    order: 2;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 3.5rem 0;
  }

  .nav-container {
    justify-content: space-between;
  }

  .nav {
    font-size: 0.82rem;
    gap: 0.8rem;
  }

  .nav-cta {
    padding-inline: 0.9rem;
  }

  .phone {
    width: 230px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}