:root {
  --brand-primary: #5c6ac4;
  --brand-secondary: #f7b733;
  --brand-accent: #31c6d4;
  --brand-dark: #1f2a44;
  --text-body: #2b2b2b;
  --bg-light: #f7f8fb;
  --bg-gradient: linear-gradient(135deg, rgba(92, 106, 196, 0.95), rgba(49, 198, 212, 0.95));
  --radius-lg: 1.5rem;
  --radius-md: 0.75rem;
  --radius-sm: 0.375rem;
  --shadow-soft: 0 20px 40px rgba(31, 42, 68, 0.15);
  --shadow-card: 0 15px 30px rgba(92, 106, 196, 0.15);
  --max-width: 1100px;
  --transition: all 0.25s ease;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Poppins', 'Segoe UI', Roboto, sans-serif;
  color: var(--text-body);
  background-color: white;
  line-height: 1.6;
}

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

a:hover,
a:focus {
  text-decoration: none;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(31, 42, 68, 0.08);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  padding: 1rem clamp(1.25rem, 4vw, 2.5rem);
  max-width: var(--max-width);
}

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

.brand-logo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: block;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 8px 16px rgba(31, 42, 68, 0.12);
}

.brand-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--brand-dark);
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  font-weight: 500;
}

.nav-links a {
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  color: var(--brand-dark);
}

.nav-links a:hover,
.nav-links a:focus {
  background-color: rgba(92, 106, 196, 0.12);
  color: var(--brand-primary);
}

main {
  padding: clamp(2.5rem, 5vw, 4.5rem) clamp(1.5rem, 5vw, 2.5rem);
}

.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.5rem, 5vw, 3.5rem);
  align-items: center;
}

.home-banner {
  max-width: var(--max-width);
  margin: 0 auto clamp(2.5rem, 5vw, 3.5rem);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

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

.hero-card {
  background: var(--bg-gradient);
  color: white;
  padding: clamp(2rem, 5vw, 3rem);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.hero-card h1 {
  font-size: clamp(2.2rem, 5vw, 3rem);
  margin-bottom: 1rem;
}

.hero-card p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: white;
  color: var(--brand-primary);
  box-shadow: var(--shadow-card);
}

.btn-primary:hover,
.btn-primary:focus {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(255, 255, 255, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: rgba(255, 255, 255, 0.32);
}

.btn-android,
.btn-preview {
  background: linear-gradient(135deg, var(--brand-secondary), #ffd27f);
  color: var(--brand-dark);
  border: 1px solid rgba(247, 183, 51, 0.4);
  box-shadow: 0 18px 35px rgba(247, 183, 51, 0.35);
  padding: 0.85rem 2rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  gap: 0.6rem;
}

.btn-android:hover,
.btn-android:focus,
.btn-preview:hover,
.btn-preview:focus {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(247, 183, 51, 0.45);
}

.btn-android:focus-visible,
.btn-preview:focus-visible {
  outline: 3px solid rgba(49, 198, 212, 0.7);
  outline-offset: 2px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.85rem;
  background-color: rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge svg {
  width: 16px;
  height: 16px;
}

.section {
  margin: clamp(3rem, 6vw, 5.5rem) auto;
  max-width: var(--max-width);
}

.section h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--brand-dark);
  margin-bottom: 1rem;
}

.section p.section-intro {
  max-width: 620px;
  margin-bottom: 2rem;
  color: rgba(43, 43, 43, 0.78);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.75rem;
}

.card {
  background: white;
  padding: 1.75rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(31, 42, 68, 0.06);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.85rem;
  color: var(--brand-primary);
}

.card p {
  margin: 0;
  color: rgba(43, 43, 43, 0.82);
}

.highlight-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.highlight-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.highlight-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background-color: rgba(92, 106, 196, 0.12);
  color: var(--brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.testimonials {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.testimonial {
  background: white;
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.testimonial p {
  font-style: italic;
  color: rgba(31, 42, 68, 0.85);
}

.testimonial .name {
  margin-top: 1rem;
  font-weight: 600;
  color: var(--brand-dark);
}

.split-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: start;
}

.info-panel {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(31, 42, 68, 0.08);
}

.info-panel h3 {
  margin-top: 0;
  color: var(--brand-primary);
}

.info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.info-list li {
  display: flex;
  gap: 0.75rem;
}

.info-list strong {
  color: var(--brand-dark);
}

.policy {
  background: white;
  padding: clamp(2rem, 5vw, 3rem);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.policy h2 {
  margin-top: 2.5rem;
  color: var(--brand-primary);
}

.policy h2:first-of-type {
  margin-top: 0;
}

.policy p,
.policy li {
  color: rgba(43, 43, 43, 0.85);
}

.policy ul {
  padding-left: 1.25rem;
}

.form-card {
  background: white;
  padding: clamp(2rem, 5vw, 3rem);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  max-width: 720px;
  margin: 0 auto;
}

.form-card h1,
.form-card p {
  text-align: center;
}

form {
  display: grid;
  gap: 1.25rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--brand-dark);
}

input,
textarea,
select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(31, 42, 68, 0.18);
  font: inherit;
  transition: var(--transition);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 4px rgba(92, 106, 196, 0.18);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.trust-panel {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid rgba(31, 42, 68, 0.08);
  display: grid;
  gap: 0.75rem;
}

.trust-panel h3 {
  margin: 0;
  color: var(--brand-primary);
}

.trust-panel ul {
  margin: 0;
  padding-left: 1.25rem;
}

footer {
  background: var(--brand-dark);
  color: rgba(255, 255, 255, 0.76);
  padding: 2.5rem clamp(1.5rem, 4vw, 2.5rem);
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.footer-brand h2 {
  margin: 0 0 0.75rem;
  color: white;
}

.footer-links {
  display: grid;
  gap: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.76);
}

.footer-links a:hover,
.footer-links a:focus {
  color: white;
}

.footer-bottom {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }

  header {
    position: static;
  }

  .hero {
    text-align: center;
  }

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