/* Global styles */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; background: #f8fafc; }
a { text-decoration: none; color: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
.header { background: #0f172a; color: #fff; padding: 15px 0; }
.header .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; }
.logo { font-size: 1.5rem; font-weight: 700; color: #facc15; text-transform: uppercase; letter-spacing: 1px; }
.nav { display: flex; gap: 20px; }
.nav a { color: #cbd5e1; font-weight: 500; padding: 5px 0; transition: color .2s; }
.nav a:hover { color: #facc15; }

/* Hero */
.hero { background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%); color: #fff; text-align: center; padding: 80px 0; }
.hero h1 { font-size: 2.8rem; margin-bottom: 15px; line-height: 1.2; }
.hero p { font-size: 1.3rem; color: #cbd5e1; margin-bottom: 30px; }
.btn { display: inline-block; background: #facc15; color: #1e293b; font-weight: 700; padding: 12px 30px; border-radius: 5px; font-size: 1.1rem; margin: 5px; transition: opacity .2s; }
.btn:hover { opacity: .9; }
.btn-outline { background: transparent; border: 2px solid #facc15; color: #facc15; }

/* Stats */
.stats { padding: 40px 0; background: #fff; }
.stats .container { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 25px; text-align: center; }
.stat-item h3 { font-size: 2.5rem; color: #1e3a8a; }
.stat-item p { color: #64748b; font-size: 1.1rem; margin-top: 5px; }

/* Features / categories */
.features { padding: 50px 0; }
.features .container { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 25px; }
.feature-card { background: #fff; border-radius: 10px; padding: 25px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); text-align: center; transition: transform .2s; }
.feature-card:hover { transform: translateY(-5px); }
.feature-card h3 { margin: 15px 0 10px; color: #1e293b; }
.feature-card p { color: #475569; }
.feature-icon { width: 60px; height: 60px; border-radius: 50%; background: #e0e7ff; display: inline-flex; align-items: center; justify-content: center; }

/* Footer */
.footer { background: #0f172a; color: #cbd5e1; padding: 30px 0; margin-top: 40px; }
.footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer-cols { display: flex; gap: 50px; flex-wrap: wrap; }
.footer h4 { color: #fff; margin-bottom: 10px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 5px; }
.page-header { background: #1e3a8a; color: #fff; padding: 40px 0; text-align: center; }
.page-header h1 { font-size: 2rem; }

/* Cards for catalog and tenders */
.cards-grid { padding: 50px 0; }
.cards-grid .container { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 25px; }
.card { background: #fff; border-radius: 10px; overflow: hidden; box-shadow: 0 4px 6px rgba(0,0,0,0.1); transition: transform .2s; }
.card:hover { transform: translateY(-5px); }
.card-image { height: 180px; background: linear-gradient(135deg, #cbd5e1, #e2e8f0); display: flex; align-items: center; justify-content: center; }
.card-body { padding: 20px; }
.card-body h3 { margin-bottom: 8px; color: #1e293b; }
.card-body p { color: #475569; font-size: .95rem; margin-bottom: 12px; }
.btn-small { padding: 8px 18px; font-size: .9rem; }

/* Suppliers page */
.suppliers-content { padding: 50px 0; }
.suppliers-content p { margin-bottom: 20px; line-height: 1.7; }
.requirements { background: #fff; border-left: 5px solid #facc15; padding: 20px; margin-bottom: 30px; border-radius: 0 5px 5px 0; }
.requirements ul { margin-left: 20px; }
.requirements li { margin-bottom: 8px; }

/* Contacts */
.contacts-info { padding: 50px 0; }
.contacts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-item { display: flex; gap: 15px; align-items: center; margin-bottom: 20px; }
.contact-item img { width: 30px; height: 30px; }
.form-control { width: 100%; padding: 12px; border: 1px solid #cbd5e1; border-radius: 5px; margin-bottom: 15px; font-size: 1rem; }
textarea.form-control { resize: vertical; }

/* Mobile */
@media (max-width: 600px) {
  .hero h1 { font-size: 2rem; }
  .logo { font-size: 1.2rem; }
  .nav { flex-direction: column; gap: 8px; }
  .contacts-grid { grid-template-columns: 1fr; }
}