:root {
  --bg: #f7f9fb;
  --surface: #ffffff;
  --text: #1a2230;
  --muted: #5d6b82;
  --primary: #0066cc;
  --primary-dark: #004f9e;
  --accent: #36c5f0;
  --border: #e3e8f0;
  --shadow: 0 12px 40px rgba(12, 24, 45, 0.08);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1200px;
  --section-gap: clamp(3rem, 4vw, 5.5rem);
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

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

.container {
  width: min(100% - 2.5rem, var(--container));
  margin: 0 auto;
}

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand span {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-weight: 600;
}

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

.nav a:hover,
.nav a:focus {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.lang-switch a {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  font-size: 0.85rem;
  background: var(--surface);
  color: var(--muted);
  transition: all 0.2s ease;
}

.lang-switch a.active,
.lang-switch a:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.social {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--primary);
}

.hero {
  padding: var(--section-gap) 0;
}

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

.hero-card {
  background: var(--surface);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-card h1 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin-bottom: 1rem;
}

.hero-card p {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: none;
  font-weight: 600;
  transition: background 0.2s ease;
}

.button.secondary {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.button:hover,
.button:focus {
  background: var(--primary-dark);
}

.section {
  padding: var(--section-gap) 0;
}

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

.section-header h2 {
  font-size: clamp(1.75rem, 2.5vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--muted);
}

.cards {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--surface);
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  min-height: 100%;
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p,
.card li {
  color: var(--muted);
}

.card ul {
  padding-left: 1.2rem;
  display: grid;
  gap: 0.5rem;
}

.highlight {
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.1), rgba(54, 197, 240, 0.12));
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: grid;
  gap: 1.5rem;
}

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

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.gallery-grid img {
  border-radius: var(--radius-md);
  height: 220px;
  object-fit: cover;
}

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

.form-group {
  display: grid;
  gap: 0.5rem;
}

label {
  font-weight: 600;
}

input,
select,
textarea {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
}

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

.checkbox {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 320px;
}

.footer {
  background: #0f1a2c;
  color: #d6e2f2;
  padding: 3rem 0 2rem;
  margin-top: var(--section-gap);
}

.footer a {
  color: #d6e2f2;
}

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

.footer small {
  color: rgba(214, 226, 242, 0.75);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--primary-dark);
  background: rgba(0, 102, 204, 0.1);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-weight: 600;
}

.notice {
  border-left: 4px solid var(--primary);
  padding-left: 1rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .nav {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    background: var(--surface);
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    position: absolute;
    top: 70px;
    right: 1.5rem;
    box-shadow: var(--shadow);
  }

  .nav.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 600px) {
  .hero-card {
    padding: 2rem;
  }

  .topbar .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .social {
    justify-content: flex-start;
  }
}