/* SOLWE Website - Global Styles */
:root {
  --primary: #1a3a5c;
  --primary-dark: #0f2440;
  --primary-light: #2a5a8c;
  --black: #111111;
  --dark: #222222;
  --gray-900: #1a1a1a;
  --gray-800: #333333;
  --gray-700: #4a4a4a;
  --gray-600: #666666;
  --gray-500: #888888;
  --gray-400: #aaaaaa;
  --gray-300: #cccccc;
  --gray-200: #e0e0e0;
  --gray-100: #f5f5f5;
  --white: #ffffff;
  --whatsapp: #25D366;
  --whatsapp-dark: #1da851;
  --radius: 6px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
  --transition: all 0.25s ease;
  --nav-height: 64px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: Arial, Helvetica, 'Segoe UI', sans-serif; color: var(--black); background: var(--white); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; display: block; }

/* NAVBAR */
.navbar { position: fixed; top: 0; left: 0; right: 0; height: var(--nav-height); background: var(--white); border-bottom: 1px solid var(--gray-200); z-index: 1000; display: flex; align-items: center; padding: 0 20px; }
.navbar-inner { max-width: 1200px; width: 100%; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-size: 24px; font-weight: 700; color: var(--primary); letter-spacing: 1px; }
.nav-logo span { color: var(--black); }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { color: var(--dark); font-size: 14px; font-weight: 500; padding: 4px 0; border-bottom: 2px solid transparent; transition: var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--primary); border-bottom-color: var(--primary); }
.nav-whatsapp { display: flex; align-items: center; gap: 6px; background: var(--whatsapp); color: var(--white) !important; padding: 8px 16px; border-radius: var(--radius); font-size: 13px; font-weight: 600; transition: var(--transition); }
.nav-whatsapp:hover { background: var(--whatsapp-dark); }
.nav-whatsapp svg { width: 18px; height: 18px; fill: var(--white); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--black); margin: 5px 0; transition: var(--transition); }

/* HERO */
.hero { margin-top: var(--nav-height); background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%); color: var(--white); padding: 80px 20px 60px; text-align: center; position: relative; overflow: hidden; }
.hero-content { max-width: 800px; margin: 0 auto; position: relative; z-index: 1; }
.hero h1 { font-size: 42px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.5px; }
.hero .subtitle { font-size: 20px; font-weight: 400; margin-bottom: 16px; opacity: 0.9; }
.hero .desc { font-size: 15px; margin-bottom: 32px; opacity: 0.8; letter-spacing: 1px; }

/* BUTTONS */
.btn { display: inline-block; padding: 14px 36px; border-radius: var(--radius); font-size: 15px; font-weight: 600; cursor: pointer; border: none; transition: var(--transition); text-align: center; }
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { background: var(--dark); color: var(--white); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.5); }
.btn-secondary { background: var(--gray-100); color: var(--dark); border: 1px solid var(--gray-200); }
.btn-secondary:hover { background: var(--gray-200); color: var(--dark); }

/* SECTION */
.section { padding: 60px 20px; }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-title { font-size: 28px; font-weight: 700; text-align: center; margin-bottom: 8px; color: var(--black); }
.section-subtitle { text-align: center; color: var(--gray-600); margin-bottom: 40px; font-size: 15px; }

/* SERIES GRID */
.series-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.series-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 24px 20px; text-align: center; transition: var(--transition); cursor: pointer; }
.series-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: var(--primary); }
.series-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.series-card p { font-size: 13px; color: var(--gray-600); line-height: 1.5; margin-bottom: 10px; }
.series-card .count { font-size: 12px; color: var(--primary); font-weight: 600; }

/* WHY CHOOSE US */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.why-card { background: var(--gray-100); padding: 28px 24px; border-radius: var(--radius); text-align: center; }
.why-card .icon { font-size: 28px; margin-bottom: 14px; }
.why-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.why-card p { font-size: 13px; color: var(--gray-600); line-height: 1.5; }

/* BRANDS */
.brands-wall { display: flex; flex-wrap: wrap; justify-content: center; gap: 32px; margin-top: 24px; }
.brand-placeholder { width: 120px; height: 48px; background: var(--gray-100); border: 1px solid var(--gray-200); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 11px; color: var(--gray-500); font-weight: 600; letter-spacing: 0.5px; }

/* PRODUCTS PAGE */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; align-items: center; }
.filter-btn { padding: 8px 18px; border: 1px solid var(--gray-300); border-radius: 20px; background: var(--white); color: var(--dark); font-size: 13px; cursor: pointer; transition: var(--transition); }
.filter-btn:hover, .filter-btn.active { background: var(--primary); color: var(--white); border-color: var(--primary); }
.search-box { margin-left: auto; position: relative; }
.search-box input { padding: 8px 16px 8px 36px; border: 1px solid var(--gray-300); border-radius: 20px; font-size: 13px; width: 220px; outline: none; transition: var(--transition); }
.search-box input:focus { border-color: var(--primary); }

.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.product-img { width: 100%; height: 220px; background: var(--gray-100); display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.product-img img { width: 100%; height: 100%; object-fit: cover; }
.product-img .placeholder { color: var(--gray-400); font-size: 13px; text-align: center; padding: 20px; }
.product-type-badge { position: absolute; top: 10px; left: 10px; background: var(--primary); color: var(--white); font-size: 11px; padding: 3px 10px; border-radius: 12px; font-weight: 500; }
.product-price-badge { position: absolute; top: 10px; right: 10px; background: var(--black); color: var(--white); font-size: 11px; padding: 3px 10px; border-radius: 12px; font-weight: 600; }
.product-price-badge.inquiry { background: var(--gray-700); }
.product-info { padding: 16px 18px 18px; }
.product-info h3 { font-size: 15px; font-weight: 600; margin-bottom: 6px; line-height: 1.4; }
.product-info .desc { font-size: 12px; color: var(--gray-600); margin-bottom: 14px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-actions { display: flex; gap: 8px; }
.product-actions .btn { flex: 1; padding: 9px 12px; font-size: 12px; border-radius: var(--radius); }

/* MODAL */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); z-index: 2000; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.active { display: flex; }
.modal { background: var(--white); border-radius: 8px; max-width: 900px; width: 100%; max-height: 90vh; overflow-y: auto; position: relative; }
.modal-close { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border: none; background: var(--gray-100); border-radius: 50%; cursor: pointer; font-size: 18px; display: flex; align-items: center; justify-content: center; z-index: 10; }
.modal-body { padding: 32px; }
.modal-product-content { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 28px; }
.modal-product-img { width: 100%; aspect-ratio: 1; background: var(--gray-100); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.modal-product-img img { width: 100%; height: 100%; object-fit: cover; }
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: 13px; }
.spec-table td { padding: 8px 12px; border: 1px solid var(--gray-200); }
.spec-table td:first-child { background: var(--gray-100); font-weight: 600; width: 40%; }
.inquiry-form { background: var(--gray-100); padding: 24px; border-radius: var(--radius); margin-top: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.form-group { margin-bottom: 12px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; color: var(--gray-700); }
.form-group input, .form-group textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--gray-300); border-radius: var(--radius); font-size: 13px; font-family: inherit; outline: none; }
.form-group textarea { resize: vertical; min-height: 80px; }
.form-actions { display: flex; gap: 10px; margin-top: 16px; }

/* ABOUT */
.about-hero { margin-top: var(--nav-height); background: var(--gray-100); padding: 60px 20px; text-align: center; }
.about-hero h1 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.about-subtitle { font-size: 18px; color: var(--primary); font-weight: 600; margin-bottom: 20px; }
.about-desc { font-size: 14px; color: var(--gray-600); max-width: 720px; margin: 0 auto 8px; line-height: 1.7; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.stat-card { text-align: center; padding: 24px; }
.stat-card .number { font-size: 36px; font-weight: 700; color: var(--primary); }
.about-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about-img { width: 100%; aspect-ratio: 4/3; background: var(--gray-200); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: var(--gray-400); }
.cert-grid { display: flex; gap: 24px; justify-content: center; margin-top: 24px; flex-wrap: wrap; }
.cert-badge { width: 80px; height: 80px; background: var(--white); border: 1px solid var(--gray-200); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: var(--primary); }

/* CONTACT */
.contact-hero { margin-top: var(--nav-height); background: var(--primary); color: var(--white); padding: 50px 20px; text-align: center; }
.contact-grid { max-width: 1000px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding: 60px 20px; }
.contact-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 18px; }
.contact-item .icon { width: 36px; height: 36px; background: var(--gray-100); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 16px; }
.map-placeholder { width: 100%; aspect-ratio: 16/9; background: var(--gray-100); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: var(--gray-400); margin-top: 20px; }

/* FOOTER */
.footer { background: var(--black); color: rgba(255,255,255,0.7); padding: 48px 20px 24px; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer-col h4 { color: var(--white); font-size: 14px; margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 13px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; justify-content: space-between; font-size: 12px; }

/* WHATSAPP FLOAT */
.whatsapp-float { position: fixed; bottom: 24px; right: 24px; width: 56px; height: 56px; background: var(--whatsapp); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(37,211,102,0.4); z-index: 999; transition: var(--transition); cursor: pointer; }
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 28px; height: 28px; fill: var(--white); }

/* PAGE HEADER */
.page-header { margin-top: var(--nav-height); background: var(--gray-100); padding: 40px 20px; text-align: center; border-bottom: 1px solid var(--gray-200); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .series-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --nav-height: 56px; }
  .nav-links { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: var(--white); flex-direction: column; padding: 16px 20px; border-bottom: 1px solid var(--gray-200); }
  .nav-links.active { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 60px 16px 40px; }
  .hero h1 { font-size: 28px; }
  .section { padding: 40px 12px; }
  .series-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .why-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .modal-product-content { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .search-box input { width: 160px; }
  .filter-bar { overflow-x: auto; flex-wrap: nowrap; }
}
@media (max-width: 480px) {
  .series-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 24px; }
}