*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0a1628; --card: #111d30; --card-h: #162038;
  --accent: #00D4AA; --accent-d: #00A888;
  --blue: #0077FF; --blue-d: #005FCC;
  --text: #E8F0FE; --text-dim: #7B8FA8;
  --border: rgba(0,212,170,0.15);
  --shadow: 0 8px 32px rgba(0,0,0,0.45);
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 5%; }
.section-pad { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.section-desc { color: var(--text-dim); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
.bg-alt { background: var(--card); }

/* NAV */
nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; display: flex; align-items: center; justify-content: space-between; padding: 0 5%; height: 68px; background: rgba(10,22,40,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 800; letter-spacing: 1px; }
.nav-logo .dot { color: var(--accent); }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { font-size: 0.88rem; font-weight: 500; color: var(--text-dim); transition: color 0.2s; }
.nav-links a:hover { color: var(--accent); }
.nav-cta { background: var(--accent); color: var(--bg); padding: 8px 20px; border-radius: 6px; font-size: 0.85rem; font-weight: 700; transition: background 0.2s; }
.nav-cta:hover { background: var(--accent-d); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 10px; }
.hamburger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-menu { display: none; position: fixed; top: 68px; left: 0; right: 0; background: var(--card); border-bottom: 1px solid var(--border); padding: 20px; z-index: 99; }
.mobile-menu.active { display: block; }
.mobile-menu a { display: block; padding: 12px 0; color: var(--text-dim); font-size: 1rem; }
.mobile-menu a:hover { color: var(--accent); }
@media(max-width: 768px) { .nav-links, .nav-cta { display: none; } .hamburger { display: flex; } }

/* HERO */
#hero { position: relative; min-height: 100vh; display: flex; align-items: center; background: var(--bg); overflow: hidden; }
.hero-grid-lines { position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(0,212,170,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0,212,170,0.04) 1px, transparent 1px); background-size: 60px 60px; }
.hero-glow { position: absolute; top: 20%; left: 50%; transform: translateX(-50%); width: 700px; height: 700px; background: radial-gradient(ellipse, rgba(0,212,170,0.08) 0%, transparent 70%); pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 820px; margin: 0 auto; padding: 120px 5% 80px; text-align: center; width: 100%; }
.hero-badge { display: inline-block; background: rgba(0,212,170,0.12); border: 1px solid rgba(0,212,170,0.3); color: var(--accent); padding: 6px 16px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; margin-bottom: 24px; }
.hero-content h1 { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 900; line-height: 1.1; margin-bottom: 20px; }
.hero-content h1 .accent { color: var(--accent); }
.hero-sub { font-size: 1.1rem; color: var(--text-dim); max-width: 560px; margin: 0 auto 36px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 50px; }
.hero-stats { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.stat { text-align: center; }
.stat-num { display: block; font-size: 1.5rem; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

/* BUTTONS */
.btn-primary { display: inline-block; background: var(--accent); color: var(--bg); padding: 12px 28px; border-radius: 8px; font-weight: 700; font-size: 0.95rem; transition: all 0.2s; }
.btn-primary:hover { background: var(--accent-d); transform: translateY(-1px); }
.btn-outline { display: inline-block; background: transparent; color: var(--text); padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 0.95rem; border: 1px solid var(--border); transition: all 0.2s; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-card { display: block; background: rgba(0,212,170,0.1); color: var(--accent); padding: 10px 20px; border-radius: 6px; font-weight: 600; font-size: 0.88rem; text-align: center; border: 1px solid rgba(0,212,170,0.2); transition: all 0.2s; }
.btn-card:hover { background: var(--accent); color: var(--bg); }

/* PRODUCT GRID */
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.product-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 32px; position: relative; transition: all 0.3s; }
.product-card:hover { border-color: rgba(0,212,170,0.4); transform: translateY(-4px); box-shadow: var(--shadow); }
.product-card.featured { border-color: var(--accent); box-shadow: 0 0 20px rgba(0,212,170,0.1); }
.product-badge { position: absolute; top: 16px; right: 16px; background: var(--accent); color: var(--bg); font-size: 0.7rem; font-weight: 700; padding: 4px 10px; border-radius: 4px; }
.product-icon { width: 60px; height: 60px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 800; margin-bottom: 16px; }
.ac-icon { background: rgba(0,119,255,0.15); color: var(--blue); }
.dc-icon { background: rgba(0,212,170,0.15); color: var(--accent); }
.product-cat { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.product-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 10px; }
.product-desc { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 16px; }
.product-specs { list-style: none; margin-bottom: 20px; }
.product-specs li { font-size: 0.85rem; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.05); color: var(--text-dim); }
.product-specs li::before { content: "✓ "; color: var(--accent); margin-right: 6px; }

/* FEATURES GRID */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.feat-card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 24px; transition: all 0.2s; }
.feat-card:hover { border-color: rgba(0,212,170,0.3); }
.feat-icon { font-size: 2rem; margin-bottom: 12px; }
.feat-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.feat-card p { font-size: 0.85rem; color: var(--text-dim); }

/* SCENARIOS */
.scenarios-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.scenario-card { background: var(--card); border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.scenario-img { height: 140px; display: flex; align-items: center; justify-content: center; }
.scenario-info { padding: 20px; }
.scenario-info h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.scenario-info p { font-size: 0.85rem; color: var(--text-dim); }

/* CTA */
.cta-section { background: linear-gradient(135deg, var(--card), #0d2035); text-align: center; }
.cta-section h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cta-section p { color: var(--text-dim); margin-bottom: 28px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* FOOTER */
footer { background: var(--card); border-top: 1px solid var(--border); padding: 50px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: 0.85rem; color: var(--text-dim); margin-top: 12px; }
.footer-links h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); margin-bottom: 16px; }
.footer-links a { display: block; font-size: 0.88rem; color: var(--text-dim); padding: 5px 0; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-links p { font-size: 0.85rem; color: var(--text-dim); padding: 4px 0; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; text-align: center; font-size: 0.8rem; color: var(--text-dim); }
@media(max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } .hero-stats { gap: 24px; } }

/* PRODUCT DETAIL PAGE */
.product-hero { padding: 120px 0 60px; text-align: center; }
.product-hero .product-cat { font-size: 0.85rem; color: var(--accent); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
.product-hero h1 { font-size: 2.8rem; font-weight: 900; margin-bottom: 16px; }
.product-hero .lead { font-size: 1.1rem; color: var(--text-dim); max-width: 600px; margin: 0 auto 40px; }
.spec-table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 10px; overflow: hidden; margin-bottom: 40px; }
.spec-table th, .spec-table td { padding: 14px 20px; text-align: left; border-bottom: 1px solid var(--border); }
.spec-table th { background: rgba(0,212,170,0.08); color: var(--accent); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; width: 35%; }
.spec-table td { font-size: 0.9rem; color: var(--text-dim); }
.spec-table tr:last-child td, .spec-table tr:last-child th { border-bottom: none; }
.features-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.feature-item { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; display: flex; gap: 12px; align-items: flex-start; }
.feature-item .feat-icon { font-size: 1.5rem; }
.feature-item h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 4px; }
.feature-item p { font-size: 0.8rem; color: var(--text-dim); }
.model-tabs { display: flex; gap: 12px; margin-bottom: 30px; flex-wrap: wrap; justify-content: center; }
.model-tab { background: var(--card); border: 1px solid var(--border); color: var(--text-dim); padding: 10px 24px; border-radius: 8px; cursor: pointer; font-weight: 600; font-size: 0.9rem; transition: all 0.2s; }
.model-tab.active, .model-tab:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.product-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-bottom: 40px; }
.gallery-img { background: var(--card); border-radius: 10px; height: 200px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); overflow: hidden; }
.gallery-img img { width: 100%; height: 100%; object-fit: cover; }
.price-note { background: rgba(0,212,170,0.08); border: 1px solid rgba(0,212,170,0.2); border-radius: 8px; padding: 20px; margin-top: 30px; }
.price-note h4 { color: var(--accent); margin-bottom: 8px; font-size: 0.9rem; }
.price-note p { font-size: 0.85rem; color: var(--text-dim); }

/* PRODUCTS LIST PAGE */
.products-filter { display: flex; gap: 12px; margin-bottom: 40px; flex-wrap: wrap; justify-content: center; }
.filter-btn { background: var(--card); border: 1px solid var(--border); color: var(--text-dim); padding: 8px 20px; border-radius: 6px; cursor: pointer; font-size: 0.85rem; font-weight: 500; transition: all 0.2s; }
.filter-btn.active, .filter-btn:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }

/* ABOUT PAGE */
.about-hero { padding: 120px 0 60px; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 2rem; font-weight: 800; margin-bottom: 20px; }
.about-text p { color: var(--text-dim); margin-bottom: 16px; }
.about-img { background: var(--card); border-radius: 12px; height: 300px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); }
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 50px; }
.stat-box { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 24px; text-align: center; }
.stat-box .num { font-size: 2rem; font-weight: 800; color: var(--accent); }
.stat-box .label { font-size: 0.8rem; color: var(--text-dim); margin-top: 4px; }
@media(max-width: 768px) { .about-content { grid-template-columns: 1fr; } .stats-row { grid-template-columns: 1fr 1fr; } }

/* CONTACT PAGE */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 32px; }
.contact-info h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 20px; }
.info-item { display: flex; gap: 12px; margin-bottom: 20px; align-items: flex-start; }
.info-item .icon { font-size: 1.3rem; }
.info-item h4 { font-size: 0.85rem; font-weight: 600; margin-bottom: 4px; }
.info-item p { font-size: 0.85rem; color: var(--text-dim); }
.contact-form { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 32px; }
.contact-form h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 6px; color: var(--text-dim); }
.form-group input, .form-group textarea, .form-group select { width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 10px 14px; color: var(--text); font-size: 0.9rem; font-family: inherit; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 100px; }
@media(max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }