:root {
  --bg: #05070d;
  --panel: rgba(14, 20, 34, 0.86);
  --panel-strong: #111a2c;
  --text: #eef3ff;
  --muted: #9aa8c7;
  --line: rgba(129, 153, 205, 0.25);
  --brand: #38bdf8;
  --brand-2: #60a5fa;
  --success: #22d3ee;
  --radius: 18px;
  --shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Roboto", sans-serif;
  background: radial-gradient(circle at 15% 15%, #132143 0%, transparent 30%),
              radial-gradient(circle at 85% 0%, #0f3d66 0%, transparent 25%),
              var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(circle at 70% 25%, rgba(56, 189, 248, 0.15), transparent 35%),
              radial-gradient(circle at 25% 80%, rgba(96, 165, 250, 0.12), transparent 35%);
}

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

.container {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(5, 7, 13, 0.75);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0;
  max-width: 260px;
}

.brand img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 0;
  border: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.main-nav a {
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: #fff;
}

.main-nav .nav-cta {
  color: #03142d;
  background: var(--brand);
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 700;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: #c8d8fa;
  margin: 6px auto;
  transition: transform 0.2s ease;
}

.hero {
  padding: 72px 0 40px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  font-size: 0.85rem;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--success);
}

h1,
h2,
h3,
h4 {
  margin: 0;
  width: 100%;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: none;
}

.lead {
  margin: 18px 0 0;
  color: var(--muted);
  max-width: 60ch;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #03142d;
  background: var(--brand);
  box-shadow: 0 10px 30px rgba(96, 165, 250, 0.35);
}

.btn-secondary {
  color: #e3edff;
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.hero-card {
  position: relative;
}

.hero-card .orb {
  position: absolute;
  width: 280px;
  height: 280px;
  right: -50px;
  top: -40px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.35), rgba(34, 211, 238, 0));
  filter: blur(10px);
  pointer-events: none;
}

.hero-card-inner {
  position: relative;
  z-index: 1;
  background: linear-gradient(145deg, rgba(20, 33, 58, 0.88), rgba(10, 16, 30, 0.92));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.hero-card-inner img {
  width: min(100%, 320px);
  height: auto;
  object-fit: contain;
  border-radius: 0;
  border: 0;
  display: block;
}

.hero-card-inner h3 {
  margin-top: 16px;
  font-size: 1.2rem;
}

.hero-card-inner p {
  color: var(--muted);
  margin-top: 12px;
}

.hero-card-inner ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: #d4e3ff;
}

.section {
  padding: 74px 0 0;
}

.section-head {
  max-width: none;
  width: 100%;
}

.section-head h2 {
  margin-top: 8px;
  font-size: clamp(1.5rem, 3.5vw, 2.35rem);
  line-height: 1.2;
}

.grid {
  margin-top: 26px;
  display: grid;
  gap: 14px;
}

.cards-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cards-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.price-card,
.faq-item,
.contact-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card {
  padding: 20px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(96, 165, 250, 0.55);
}

.card h3 {
  font-size: 1.1rem;
}

.card p {
  color: var(--muted);
  margin: 10px 0 0;
}

.timeline {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}

.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
}

.step span {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  font-weight: 700;
  border-radius: 12px;
  color: #08264f;
  background: linear-gradient(150deg, var(--brand), var(--brand-2));
}

.step p {
  margin: 6px 0 0;
  color: var(--muted);
}

.price-card {
  position: relative;
  padding: 22px;
}

.price-card .price {
  margin: 8px 0 0;
  font-size: 1.6rem;
  font-weight: 700;
}

.price-card ul {
  margin: 16px 0 18px;
  padding-left: 18px;
  color: #d4e3ff;
}

.price-card li + li {
  margin-top: 8px;
}

.price-card .tag {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(56, 189, 248, 0.18);
  border: 1px solid rgba(56, 189, 248, 0.48);
  color: #a9ebff;
  font-size: 0.78rem;
  border-radius: 999px;
  padding: 4px 10px;
}

.price-card.featured {
  border-color: rgba(56, 189, 248, 0.6);
  box-shadow: 0 15px 35px rgba(56, 189, 248, 0.16);
}

.faq-list {
  margin-top: 26px;
  display: grid;
  gap: 10px;
}

.faq-item {
  overflow: hidden;
}

.faq-question {
  width: 100%;
  border: 0;
  text-align: left;
  color: #ebf2ff;
  font-size: 1rem;
  font-weight: 600;
  padding: 16px 18px;
  background: transparent;
  cursor: pointer;
}

.faq-answer {
  display: none;
  padding: 0 18px 16px;
  color: var(--muted);
}

.faq-item.active .faq-answer {
  display: block;
}

.contact {
  padding-bottom: 70px;
}

.contact-box {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 24px;
}

.contact-box h2 {
  margin: 8px 0 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.contact-box p {
  color: var(--muted);
}

.contact-list {
  margin: 18px 0 0;
  padding-left: 18px;
}

.contact-list li + li {
  margin-top: 8px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
}

.footer-wrap {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.footer-wrap p {
  margin: 0;
  color: #95a5c8;
}

.footer-wrap a {
  color: #b7d0ff;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: var(--brand);
  color: #062247;
  font-size: 1.25rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(56, 189, 248, 0.3);
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-2px);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (max-width: 980px) {
  .brand {
    max-width: 210px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cards-3 {
    grid-template-columns: 1fr;
  }

  .contact-box {
    grid-template-columns: 1fr;
  }

  .main-nav {
    position: absolute;
    top: 78px;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: rgba(10, 14, 25, 0.95);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 14px;
  }

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

  .menu-toggle {
    display: block;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(1120px, calc(100% - 28px));
  }

  .brand {
    max-width: 180px;
  }

  .cards-4 {
    grid-template-columns: 1fr;
  }

  .step {
    grid-template-columns: 1fr;
  }

  .footer-wrap {
    min-height: auto;
    padding: 18px 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}