:root {
  --primary: #04588e;
  --primary-dark: #003f72;
  --secondary: #08b4c7;
  --secondary-dark: #0698ab;
  --accent: #f28c2f;
  --accent-soft: #6f4aa6;
  --gray: #6c737f;
  --text: #17324a;
  --text-light: #5f6f80;
  --white: #ffffff;
  --bg: #f6fbff;
  --bg-alt: #eaf6fb;
  --border: rgba(4, 88, 142, 0.12);
  --shadow: 0 18px 50px rgba(4, 88, 142, 0.12);
  --radius: 24px;
  --radius-sm: 16px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(8, 180, 199, 0.12), transparent 24%),
    radial-gradient(circle at bottom right, rgba(4, 88, 142, 0.08), transparent 30%),
    var(--white);
  line-height: 1.6;
}

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

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

.container {
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(4, 88, 142, 0.08);
}

.navbar {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-logo {
  height: 56px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav-menu a {
  color: var(--text);
  font-weight: 600;
}

.nav-menu a:hover {
  color: var(--secondary-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.35rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  color: var(--white);
  font-weight: 700;
  box-shadow: 0 16px 28px rgba(8, 180, 199, 0.2);
  border: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 34px rgba(8, 180, 199, 0.26);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 1px solid rgba(4, 88, 142, 0.18);
  box-shadow: none;
}

.btn-secondary:hover {
  background: rgba(4, 88, 142, 0.05);
}

.hero {
  padding: 4.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  background: rgba(8, 180, 199, 0.12);
  color: var(--primary);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero h1,
.section-heading h2,
.structure-grid h2,
.cta-box h2 {
  margin: 1rem 0 1rem;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.6rem);
}

.hero h1 span {
  color: var(--secondary-dark);
}

.hero p,
.section-heading p,
.structure-grid p,
.cta-box p,
.card p,
.step p,
.price-card li,
.structure-note p {
  color: var(--text-light);
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin: 1.6rem 0;
}

.hero-list {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
  display: grid;
  gap: 0.6rem;
}

.hero-list li {
  position: relative;
  padding-left: 1.5rem;
  font-weight: 500;
}

.hero-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 1.35rem;
  line-height: 1;
}

.hero-card,
.card,
.step,
.price-card,
.code-box,
.cta-box,
.structure-note {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.1rem;
}

.preview-card {
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff, #f3fbff);
}

.preview-top {
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
}

.preview-top h2 {
  margin: 0.4rem 0 0.7rem;
  font-size: 1.6rem;
}

.preview-top p,
.preview-tag {
  color: rgba(255, 255, 255, 0.92);
}

.preview-info {
  display: grid;
  gap: 0.9rem;
  padding: 1.35rem;
}

.preview-item {
  padding: 0.95rem 1rem;
  border-radius: 16px;
  background: rgba(8, 180, 199, 0.07);
  border: 1px solid rgba(8, 180, 199, 0.12);
}

.preview-btn {
  margin: 0 1.35rem 1.35rem;
}

.section {
  padding: 5rem 0;
}

.alt-bg {
  background: linear-gradient(180deg, rgba(8, 180, 199, 0.05), rgba(4, 88, 142, 0.03));
}

.section-heading {
  margin-bottom: 2rem;
}

.section-heading.center {
  text-align: center;
}

.section-heading h2,
.structure-grid h2,
.cta-box h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.cards-grid.three-col,
.steps-grid,
.pricing-grid {
  display: grid;
  gap: 1.25rem;
}

.cards-grid.three-col {
  grid-template-columns: repeat(3, 1fr);
}

.card,
.step,
.price-card {
  padding: 1.5rem;
}

.card-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(8, 180, 199, 0.11);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.steps-grid {
  grid-template-columns: repeat(4, 1fr);
}

.step-number {
  width: 48px;
  height: 48px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  color: var(--white);
  font-weight: 800;
  margin-bottom: 1rem;
}

.pricing-grid {
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
}

.price-card {
  position: relative;
}

.price-card h3 {
  margin-top: 0;
}

.price {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 1rem;
}

.price-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.4rem;
  display: grid;
  gap: 0.75rem;
}

.price-card ul li {
  position: relative;
  padding-left: 1.4rem;
}

.price-card ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--secondary-dark);
  font-weight: 800;
}

.featured {
  border: 1px solid rgba(8, 180, 199, 0.28);
  transform: translateY(-8px);
}

.featured-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(8, 180, 199, 0.14);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
}

.structure-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: center;
}

.structure-note {
  margin-top: 1.2rem;
  padding: 1.2rem;
}

.code-box {
  padding: 1.25rem;
  overflow: auto;
  background: linear-gradient(180deg, #082f49, #0a4565);
  color: #eafaff;
}

.code-box pre {
  margin: 0;
  font-family: "Courier New", monospace;
  font-size: 0.95rem;
  line-height: 1.6;
}

.cta-section {
  padding-top: 1rem;
  padding-bottom: 5rem;
}

.cta-box {
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  background: linear-gradient(135deg, rgba(8, 180, 199, 0.11), rgba(4, 88, 142, 0.08));
}

.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid rgba(4, 88, 142, 0.08);
  background: #f8fcff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  align-items: center;
}

.footer-logo {
  max-height: 64px;
  width: auto;
}

.menu-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 0.4rem;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--primary);
  border-radius: 99px;
  margin: 5px 0;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

@media (max-width: 1080px) {
  .hero-grid,
  .structure-grid,
  .footer-grid,
  .cta-box,
  .cards-grid.three-col,
  .pricing-grid,
  .steps-grid {
    grid-template-columns: 1fr 1fr;
  }

  .cta-box {
    display: grid;
  }

  .featured {
    transform: none;
  }
}

@media (max-width: 820px) {
  .menu-toggle {
    display: inline-block;
  }

  .nav-menu {
    position: absolute;
    top: 84px;
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    align-items: stretch;
    background: var(--white);
    padding: 1rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: none;
  }

  .nav-menu.open {
    display: flex;
  }

  .hero-grid,
  .cards-grid.three-col,
  .steps-grid,
  .pricing-grid,
  .structure-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3.4rem;
  }

  .brand-logo {
    height: 48px;
  }

  .cta-box {
    padding: 1.5rem;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 1.2rem, var(--container));
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .section-heading h2,
  .structure-grid h2,
  .cta-box h2 {
    font-size: 1.8rem;
  }

  .btn,
  .btn-secondary {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }
}