:root {
  --bg: #f5fbff;
  --card: #ffffff;
  --text: #183153;
  --muted: #5e738d;
  --primary: #1f86ff;
  --primary-dark: #1566c7;
  --border: #dbe7f3;
  --shadow: 0 12px 30px rgba(24, 49, 83, 0.08);
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 134, 255, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(0, 194, 168, 0.10), transparent 28%),
    linear-gradient(180deg, #eef8ff 0%, #f7fbff 100%);
}

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

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  padding: 20px 0;
  position: sticky;
  top: 0;
  background: rgba(245, 251, 255, 0.88);
  backdrop-filter: blur(10px);
  z-index: 10;
  border-bottom: 1px solid rgba(219, 231, 243, 0.7);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.logo {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.3px;
}

.logo span { color: var(--primary); }

.menu {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 15px;
}

.menu a:hover {
  color: var(--primary);
}

.hero {
  padding: 72px 0 42px;
}

.hero-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.05;
  margin: 0 0 16px;
}

.hero p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
  margin: 0 0 26px;
  max-width: 640px;
}

.buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 10px 24px rgba(31, 134, 255, 0.25);
}

.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary {
  border: 1px solid var(--border);
  background: white;
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.hero-card {
  background: linear-gradient(180deg, #ffffff 0%, #edf7ff 100%);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.hero-image {
  width: 100%;
  height: 260px;
  border-radius: 22px;
  overflow: hidden;
  margin-bottom: 18px;
  border: 1px solid rgba(219, 231, 243, 0.9);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-card h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.badge {
  background: #fff;
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
}

section {
  padding: 40px 0;
  scroll-margin-top: 100px;
}

.section-title {
  font-size: 30px;
  margin: 0 0 18px;
}

.section-subtitle {
  color: var(--muted);
  margin: 0 0 26px;
  line-height: 1.7;
}

.discount-banner {
  background: linear-gradient(180deg, #fff4e8 0%, #ffe9cf 100%);
  border: 1px solid #ffcc8a;
  color: #8a4b00;
  border-radius: 18px;
  padding: 14px 18px;
  font-size: 18px;
  font-weight: 800;
  text-align: center;
  box-shadow: 0 12px 24px rgba(255, 153, 0, 0.12);
  margin: 0 0 10px;
}

.diagnostic-banner {
  background: linear-gradient(180deg, #e9f6ff 0%, #d9efff 100%);
  border: 1px solid rgba(31, 134, 255, 0.35);
  color: #0f4a8a;
  border-radius: 18px;
  padding: 14px 18px;
  font-size: 18px;
  font-weight: 800;
  text-align: center;
  box-shadow: 0 12px 24px rgba(31, 134, 255, 0.10);
  margin: 0 0 18px;
}

.grid {
  display: grid;
  gap: 20px;
}

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: 0.25s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(24, 49, 83, 0.12);
}

.service-image {
  width: 100%;
  height: 180px;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.price-list {
  grid-template-columns: repeat(3, 1fr);
}

.price {
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 800;
  color: var(--primary);
  margin: 10px 0 14px;
}

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

.step-num {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #e8f3ff;
  color: var(--primary);
  font-weight: 800;
  margin-bottom: 14px;
}

.contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.notice-box {
  background: linear-gradient(180deg, #fff4e8 0%, #ffe9cf 100%);
  border: 1px solid #ffcc8a;
  color: #8a4b00;
  border-radius: 18px;
  padding: 18px 22px;
  font-size: 18px;
  font-weight: 800;
  text-align: center;
  box-shadow: 0 12px 24px rgba(255, 153, 0, 0.12);
}

.contact-box {
  background: linear-gradient(180deg, #ffffff 0%, #eef8ff 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.contact-info p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.7;
}

.copy-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 12px;
}

.copy-wrap p {
  margin: 0;
}

.copy-wrap a {
  color: var(--primary-dark);
  font-weight: 700;
}

.copy-btn {
  appearance: none;
  border: 1px solid rgba(31, 134, 255, 0.18);
  background: linear-gradient(180deg, #2b93ff 0%, #1978e8 100%);
  color: #fff;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 18px rgba(31, 134, 255, 0.22);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.copy-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 22px rgba(31, 134, 255, 0.28);
  background: linear-gradient(180deg, #339bff 0%, #156dd4 100%);
}

.copy-btn:active {
  transform: translateY(0);
}

a:focus-visible, .copy-btn:focus-visible {
  outline: 3px solid rgba(31, 134, 255, 0.35);
  outline-offset: 2px;
}

footer {
  padding: 24px 0 40px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 900px) {
  .services,
  .price-list,
  .steps,
  .contact,
  .hero-wrap {
    grid-template-columns: 1fr;
  }

  .menu {
    display: none;
  }

  .hero-image {
    height: 220px;
  }

  .card { padding: 18px; }
  .contact-box { padding: 20px; }
  .hero { padding: 52px 0 28px; }
}