:root {
  --primary: #1a2744;
  --primary-dark: #0f1728;
  --primary-light: #2a3a5c;
  --accent: #d4a017;
  --accent-hover: #b8860b;
  --text: #2d3748;
  --text-light: #4a5568;
  --text-muted: #718096;
  --bg: #ffffff;
  --bg-light: #f7fafc;
  --bg-dark: #edf2f7;
  --border: #e2e8f0;
  --border-light: #edf2f7;
  --success: #38a169;
  --error: #e53e3e;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
  --radius: 6px;
  --radius-lg: 10px;
  --container: 1200px;
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-family);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }

h1, h2, h3, h4, h5, h6 {
  font-weight: 700; line-height: 1.2; color: var(--primary); letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.2rem; }

p { margin-bottom: 1rem; color: var(--text-light); }
p:last-child { margin-bottom: 0; }

.lead { font-size: 1.15rem; color: var(--text-light); line-height: 1.7; }
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-white { color: #fff; }
.text-muted { color: var(--text-muted); }

.container {
  width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 1.5rem;
}

.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.section-lg { padding: 7rem 0; }
.section-dark {
  background: var(--primary); color: #fff;
}
.section-dark h2, .section-dark h3, .section-dark .lead { color: #fff; }
.section-dark p { color: rgba(255,255,255,0.85); }
.section-light { background: var(--bg-light); }
.section-border { border-top: 1px solid var(--border); }

.grid { display: grid; gap: 2rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.flex { display: flex; gap: 2rem; }
.flex-center { align-items: center; justify-content: center; }
.flex-wrap { flex-wrap: wrap; }

.header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between; height: 72px;
}

.logo {
  font-size: 1.5rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px;
}
.logo span { color: var(--accent); }

.nav { display: flex; align-items: center; gap: 2rem; }

.nav-links {
  display: flex; gap: 1.8rem; list-style: none;
}

.nav-links a {
  font-size: 0.92rem; font-weight: 600; color: var(--text);
  text-transform: uppercase; letter-spacing: 0.5px;
  position: relative; padding: 0.25rem 0;
}

.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px; background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

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

.lang-btn {
  font-size: 0.75rem; font-weight: 700; padding: 0.3rem 0.6rem;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-muted); cursor: pointer;
  border-radius: var(--radius); transition: all var(--transition);
  text-transform: uppercase;
}

.lang-btn:hover { border-color: var(--accent); color: var(--accent); }
.lang-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.mobile-toggle {
  display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 0.5rem;
}

.mobile-toggle span {
  display: block; width: 24px; height: 2px; background: var(--primary);
  transition: var(--transition);
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0; background: #fff;
    flex-direction: column; padding: 2rem; gap: 1.5rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%); opacity: 0; visibility: hidden;
    transition: all var(--transition);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .mobile-toggle { display: flex; }
}

.hero {
  padding: 10rem 0 6rem; background: var(--primary); position: relative; overflow: hidden;
}

.hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(26,39,68,0.95) 0%, rgba(15,23,40,0.9) 100%);
  z-index: 1;
}

.hero > .container { position: relative; z-index: 2; }

.hero-content { max-width: 800px; margin: 0 auto; text-align: center; }

.hero h1 { color: #fff; margin-bottom: 1.5rem; line-height: 1.1; }
.hero .lead { color: rgba(255,255,255,0.85); font-size: 1.2rem; margin-bottom: 2.5rem; max-width: 650px; margin-left: auto; margin-right: auto; }

.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.page-hero {
  padding: 7rem 0 3rem; background: var(--primary); text-align: center;
}
.page-hero h1 { color: #fff; margin-bottom: 0.5rem; }
.page-hero p { color: rgba(255,255,255,0.8); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-size: 0.95rem; font-weight: 600; padding: 0.875rem 2rem;
  border-radius: var(--radius); border: none; cursor: pointer;
  transition: all var(--transition); text-transform: uppercase;
  letter-spacing: 0.5px; white-space: nowrap;
}

.btn-primary { background: var(--accent); color: var(--primary-dark); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.4); }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); color: #fff; }

.btn-outline-dark { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline-dark:hover { background: var(--primary); color: #fff; }

.btn-sm { padding: 0.6rem 1.5rem; font-size: 0.85rem; }
.btn-lg { padding: 1rem 2.5rem; font-size: 1rem; }
.btn-block { width: 100%; }

.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 2.5rem; transition: all var(--transition); height: 100%;
}

.card:hover { box-shadow: var(--shadow-lg); border-color: var(--border-light); transform: translateY(-4px); }

.card-icon {
  width: 56px; height: 56px; border-radius: var(--radius);
  background: var(--bg-light); display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 1.5rem; color: var(--accent);
}

.card h3 { margin-bottom: 0.75rem; }
.card p { margin-bottom: 0; }

.card-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; font-size: 0.9rem; color: var(--accent); margin-top: 1.5rem;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.card-link:hover { color: var(--accent-hover); }

.product-card {
  border-radius: var(--radius-lg); overflow: hidden; background: #fff;
  border: 1px solid var(--border); transition: all var(--transition);
}

.product-card:hover { box-shadow: var(--shadow-xl); transform: translateY(-6px); }

.product-card-img {
  height: 220px; background: var(--bg-dark); display: flex;
  align-items: center; justify-content: center; color: var(--text-muted);
  font-size: 0.9rem; position: relative; overflow: hidden;
}

.product-card-img::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.3));
}

.product-card-body { padding: 2rem; }
.product-card h3 { margin-bottom: 0.5rem; }
.product-card p { margin-bottom: 1.5rem; font-size: 0.95rem; }

.stats-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }

.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 0.5rem; }

.stat-label {
  font-size: 0.85rem; color: var(--text-muted); text-transform: uppercase;
  letter-spacing: 0.5px; font-weight: 600;
}

@media (max-width: 768px) { .stats-bar { grid-template-columns: repeat(2, 1fr); } }

.steps { display: flex; gap: 2rem; counter-reset: step; }

.step { flex: 1; position: relative; padding-top: 3rem; }

.step::before {
  counter-increment: step; content: counter(step); position: absolute;
  top: 0; left: 0; width: 40px; height: 40px; background: var(--accent);
  color: var(--primary-dark); font-weight: 800; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 1rem;
}

.step h4 { margin-bottom: 0.5rem; margin-top: 0.5rem; }
.step p { font-size: 0.95rem; }

@media (max-width: 768px) { .steps { flex-direction: column; } }

.accordion-item { border-bottom: 1px solid var(--border); padding: 1.5rem 0; }

.accordion-header {
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer; font-weight: 700; font-size: 1.05rem; color: var(--primary);
  padding-right: 2rem; position: relative;
}

.accordion-header::after {
  content: '+'; position: absolute; right: 0; font-size: 1.5rem;
  color: var(--accent); transition: transform var(--transition);
}

.accordion-header.active::after { transform: rotate(45deg); }

.accordion-body { max-height: 0; overflow: hidden; transition: max-height var(--transition); }
.accordion-body.active { max-height: 500px; padding-top: 1rem; }
.accordion-body p { color: var(--text-light); font-size: 0.95rem; }

.table-responsive { overflow-x: auto; }

.table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }

.table th, .table td { padding: 1rem 1.25rem; text-align: left; border-bottom: 1px solid var(--border); }

.table th {
  font-weight: 700; color: var(--primary); background: var(--bg-light);
  text-transform: uppercase; font-size: 0.8rem; letter-spacing: 0.5px;
}

.table tr:hover { background: var(--bg-light); }

.form-group { margin-bottom: 1.5rem; }

.form-label {
  display: block; font-size: 0.85rem; font-weight: 600; color: var(--text);
  margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 0.5px;
}

.form-input, .form-select, .form-textarea {
  width: 100%; padding: 0.875rem 1rem; border: 1px solid var(--border);
  border-radius: var(--radius); font-family: inherit; font-size: 1rem;
  color: var(--text); background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(212,160,23,0.15);
}

.form-textarea { min-height: 120px; resize: vertical; }

.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }

@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.contact-info-item { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 1.5rem; }

.contact-info-icon {
  width: 48px; height: 48px; border-radius: var(--radius); background: var(--bg-light);
  display: flex; align-items: center; justify-content: center; font-size: 1.25rem;
  flex-shrink: 0; color: var(--accent);
}

.contact-info-text h4 { font-size: 1rem; margin-bottom: 0.25rem; }
.contact-info-text p { font-size: 0.95rem; margin: 0; }

.footer {
  background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 4rem 0 2rem;
}

.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 3rem; margin-bottom: 3rem; }

.footer-brand { font-size: 1.5rem; font-weight: 800; color: #fff; margin-bottom: 1rem; }
.footer-brand span { color: var(--accent); }

.footer-desc { font-size: 0.95rem; line-height: 1.7; color: rgba(255,255,255,0.6); margin-bottom: 1.5rem; }

.footer-title { font-size: 0.9rem; font-weight: 700; color: #fff; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 1.5rem; }

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.75rem; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 0.95rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--accent); }

.footer-contact p { color: rgba(255,255,255,0.6); font-size: 0.95rem; margin-bottom: 0.5rem; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 2rem;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.85rem; color: rgba(255,255,255,0.4); flex-wrap: wrap; gap: 1rem;
}

@media (max-width: 992px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; } }

.breadcrumb { display: flex; gap: 0.5rem; align-items: center; font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-bottom: 1rem; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-current { color: #fff; }

.badge {
  display: inline-block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; padding: 0.35rem 0.75rem; border-radius: 100px;
  background: var(--accent); color: var(--primary-dark);
}

.notice {
  background: var(--bg-light); border-left: 4px solid var(--accent);
  padding: 1.25rem 1.5rem; border-radius: 0 var(--radius) var(--radius) 0; margin-bottom: 2rem;
}

.notice p { margin: 0; font-size: 0.95rem; }

.section-header { max-width: 700px; margin: 0 auto 4rem; text-align: center; }
.section-header h2 { margin-bottom: 1rem; }
.section-header .lead { margin-bottom: 0; }

.img-placeholder {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-light) 100%);
  display: flex; align-items: center; justify-content: center; color: var(--text-muted);
  font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
  border-radius: var(--radius-lg); min-height: 300px;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media print { .header, .footer, .btn { display: none; } .hero { padding: 2rem 0; background: none; } .hero h1 { color: #000; } }