/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --blue-900: #0b1e3d;
  --blue-800: #0f2d5e;
  --blue-700: #1a3f78;
  --blue-600: #1d5cb5;
  --blue-500: #2874d4;
  --blue-400: #4a9af5;
  --blue-300: #8dc2ff;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
  --radius: 10px;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
}

a {
  color: var(--blue-600);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--blue-400);
}

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

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== HEADER ===== */
.site-header {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  max-width: 1180px;
  margin: 0 auto;
  height: 70px;
}

.logo {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo svg {
  flex-shrink: 0;
}

.logo:hover {
  color: var(--blue-300);
}

/* hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  padding: 6px;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.85);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.925rem;
  font-weight: 500;
  transition:
    background var(--transition),
    color var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(
    135deg,
    var(--blue-800) 0%,
    var(--blue-600) 60%,
    var(--blue-400) 100%
  );
  color: var(--white);
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 640px;
  margin: 0 auto;
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

/* ===== SECTIONS ===== */
.section {
  padding: 70px 20px;
}

.section--alt {
  background: var(--blue-50);
}

.section-title {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 12px;
  text-align: center;
}

.section-subtitle {
  color: var(--gray-500);
  text-align: center;
  max-width: 580px;
  margin: 0 auto 48px;
  font-size: 1.02rem;
}

/* ===== CARDS GRID ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

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

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--blue-100);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--blue-600);
}

.card h3 {
  font-size: 1.15rem;
  color: var(--blue-900);
  margin-bottom: 10px;
}

.card p {
  font-size: 0.94rem;
  color: var(--gray-500);
  line-height: 1.65;
}

/* ===== FEATURES ROW ===== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  text-align: center;
}

.feature-item {
  padding: 20px;
}

.feature-num {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--blue-600);
  line-height: 1;
  margin-bottom: 8px;
}

.feature-label {
  font-size: 0.92rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

/* ===== TABLE (catalog / tenders) ===== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.data-table thead {
  background: var(--blue-800);
  color: var(--white);
}

.data-table th {
  text-align: left;
  padding: 14px 18px;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.3px;
}

.data-table td {
  padding: 14px 18px;
  font-size: 0.93rem;
  border-bottom: 1px solid var(--gray-100);
}

.data-table tbody tr:hover {
  background: var(--blue-50);
}

.badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.badge--green {
  background: #dcfce7;
  color: #166534;
}
.badge--yellow {
  background: #fef9c3;
  color: #854d0e;
}
.badge--blue {
  background: var(--blue-100);
  color: var(--blue-700);
}
.badge--red {
  background: #fee2e2;
  color: #991b1b;
}

/* ===== NEWS CARDS ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.news-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.news-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.news-card-img {
  height: 200px;
  background: linear-gradient(135deg, var(--blue-100), var(--blue-300));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-600);
  overflow: hidden;
}

.news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.news-card:hover .news-card-img img {
  transform: scale(1.05);
}

.news-card-body {
  padding: 24px;
}

.news-card-date {
  font-size: 0.82rem;
  color: var(--gray-500);
  margin-bottom: 8px;
}

.news-card h3 {
  font-size: 1.08rem;
  color: var(--blue-900);
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-card p {
  font-size: 0.92rem;
  color: var(--gray-500);
  line-height: 1.6;
}

.news-card .read-more {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--blue-600);
}

.news-card .read-more:hover {
  color: var(--blue-400);
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info-block {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info-block .icon-circle {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: var(--blue-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-600);
}

.contact-info-block h4 {
  font-size: 0.95rem;
  color: var(--blue-900);
  margin-bottom: 4px;
}

.contact-info-block p {
  font-size: 0.9rem;
  color: var(--gray-500);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 0.93rem;
  font-family: inherit;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(40, 116, 212, 0.15);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.94rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition:
    background var(--transition),
    transform var(--transition);
}

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--blue-700);
  transform: translateY(-1px);
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  padding: 16px 20px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}

.breadcrumb-inner {
  max-width: 1180px;
  margin: 0 auto;
  font-size: 0.85rem;
  color: var(--gray-500);
}

.breadcrumb-inner a {
  color: var(--blue-600);
}
.breadcrumb-inner span {
  margin: 0 6px;
}

/* ===== PAGE HEADER (subpages) ===== */
.page-header {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-600));
  color: var(--white);
  padding: 48px 20px;
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-header p {
  opacity: 0.85;
  max-width: 520px;
  margin: 0 auto;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--blue-900);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 20px 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  max-width: 1180px;
  margin: 0 auto 36px;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  margin-top: 12px;
}

.site-footer h4 {
  color: var(--white);
  font-size: 0.92rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.site-footer ul {
  list-style: none;
}

.site-footer ul li {
  margin-bottom: 8px;
}

.site-footer ul a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  transition: color var(--transition);
}

.site-footer ul a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.82rem;
  max-width: 1180px;
  margin: 0 auto;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--blue-900);
    padding: 12px 20px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-md);
    z-index: 99;
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .main-nav ul {
    flex-direction: column;
    gap: 4px;
  }

  .main-nav a {
    display: block;
    padding: 12px 16px;
  }

  .hero {
    padding: 56px 20px;
  }

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

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

  .data-table {
    font-size: 0.85rem;
  }
  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }
}