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

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top left, #111827 0, #020617 40%, #000000 100%);
  color: #f9fbff;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(90deg, rgba(2, 8, 36, 0.9), rgba(2, 6, 23, 0.9));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo img {
  width: 48px;
  height: 48px;
}

.logo-title {
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.main-nav a {
  color: #e2e8ff;
  text-decoration: none;
  padding: 0.3rem 0.1rem;
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  background: #9ca3af;
  transition: width 0.2s ease;
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: #020617;
  color: #e5e7eb;
  border: 1px solid rgba(209, 213, 219, 0.9);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.45);
}

.hero {
  padding: 4rem 0 4.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: center;
  gap: 3rem;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 3vw + 1.5rem, 3.4rem);
  margin: 0 0 1rem;
}

.hero-text p {
  color: #c7d2fe;
  max-width: 34rem;
}

.eyebrow {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: #a5b4fc;
  margin-bottom: 0.6rem;
}

.hero-actions {
  margin: 1.6rem 0 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 500;
  padding: 0.7rem 1.4rem;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

.btn.primary {
  background: linear-gradient(135deg, #f3f4f6, #d1d5db);
  color: #020617;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.7);
}

.btn.ghost {
  border-color: rgba(148, 163, 184, 0.6);
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.7);
}

.btn.full-width {
  width: 100%;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: #a5b4fc;
}

.hero-meta span {
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: radial-gradient(circle at top left, #111827, #020617);
}

.hero-image {
  display: flex;
  justify-content: center;
}

.hero-main-card {
  background: radial-gradient(circle at top left, #111827, #020617);
  padding: 1.5rem 1.8rem;
  border-radius: 1.5rem;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.8);
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: radial-gradient(circle at top right, rgba(15, 23, 42, 0.9), rgba(2, 6, 23, 0.98));
}

.section-title {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  color: #cbd5f5;
  max-width: 34rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.features-grid {
  margin-top: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.card {
  background: rgba(15, 23, 42, 0.9);
  border-radius: 1rem;
  padding: 1.4rem 1.5rem;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.7);
}

.feature-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: #e5e7eb;
  font-size: 0.95rem;
}

.devices-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 2.5rem;
  align-items: center;
}

.devices-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.device-large,
.device-small {
  border-radius: 1.4rem;
  padding: 1.3rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  background: radial-gradient(circle at top left, #020617, #111827);
  border: 1px solid rgba(55, 65, 81, 0.9);
}

.device-small img,
.device-large img {
  border-radius: 1.1rem;
}

.device-small img {
  border-radius: 1rem;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.checklist li::before {
  content: "✔";
  color: #22c55e;
  margin-right: 0.5rem;
}

.checklist li {
  margin-bottom: 0.55rem;
  color: #e5e7eb;
}

.steps-grid {
  margin-top: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.step-card {
  position: relative;
  padding-top: 2.8rem;
}

.step-number {
  position: absolute;
  top: 1rem;
  left: 1.5rem;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  background: #e5e7eb;
  color: #020617;
}

.support-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  gap: 2rem;
  align-items: flex-start;
}

.support-contact p {
  margin: 0.25rem 0;
  font-size: 0.92rem;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.contact-form {
  margin-top: 1.5rem;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.9rem;
}

.form-row label {
  font-size: 0.85rem;
  color: #c7d2fe;
}

input,
textarea {
  border-radius: 0.75rem;
  border: 1px solid rgba(148, 163, 184, 0.55);
  background: rgba(15, 23, 42, 0.8);
  color: #e5e7eb;
  padding: 0.6rem 0.75rem;
  font-family: inherit;
  font-size: 0.95rem;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.5);
}

.contact-note {
  padding: 1.5rem 1.6rem;
  border-radius: 1.1rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.75);
}

.site-footer {
  border-top: 1px solid rgba(15, 23, 42, 0.9);
  background: #020617;
  color: #9ca3af;
  font-size: 0.8rem;
}

.footer-inner {
  padding: 1.5rem 0 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-inner,
  .devices-inner,
  .support-layout,
  .contact-layout {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .hero-text p,
  .section-subtitle {
    margin-inline: auto;
  }

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

  .main-nav {
    display: none;
  }

  .logo-title {
    font-size: 0.8rem;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 3rem;
  }

  .section {
    padding: 3rem 0;
  }

  .card {
    padding: 1.1rem 1.2rem;
  }
}


.store-buttons {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(156, 163, 175, 0.75);
  padding: 0.35rem 0.9rem;
  font-size: 0.8rem;
  text-decoration: none;
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.9);
}

.store-badge.ios::before {
  content: "";
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin-right: 0.35rem;
  font-size: 0.9rem;
}

.store-badge.android::before {
  content: "▶";
  margin-right: 0.35rem;
  font-size: 0.7rem;
}

@media (max-width: 900px) {
  .store-buttons {
    justify-content: center;
  }
}


.form-status {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  min-height: 1.2rem;
}

.form-status.success {
  color: #6ee7b7;
}

.form-status.error {
  color: #f97373;
}