/* --- VARIABLES & RESET --- */
:root {
    --bg-color: #040814;
    --bg-secondary: #0a1122;
    --text-primary: #ffffff;
    --text-secondary: #8b9bb4;
    --accent-color: #00d2ff;
    --accent-hover: #3a86ff;
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(0, 210, 255, 0.1);
    --transition-fast: 0.3s ease;
    
    --font-primary: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-primary); background-color: var(--bg-color); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 100px 0; }

h1, h2, h3 { font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(3rem, 5vw, 5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 3vw, 3rem); margin-bottom: 1rem; }
p { color: var(--text-secondary); font-size: 1.1rem; }

/* NAVBAR */
.navbar { position: fixed; top: 0; width: 100%; padding: 1.5rem 0; z-index: 100; transition: var(--transition-fast); }
.navbar.scrolled { background: rgba(4, 8, 20, 0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--glass-border); padding: 1rem 0; }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; letter-spacing: 1px; }
.logo span { color: var(--accent-color); font-weight: 400; }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-size: 0.9rem; font-weight: 500; text-transform: uppercase; transition: var(--transition-fast); }
.nav-links a:hover { color: var(--accent-color); }
.hamburger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.hamburger span { width: 25px; height: 2px; background-color: var(--text-primary); transition: 0.3s; }

/* HERO */
.hero { position: relative; height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; }
.hero-background { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle at top right, #004d80 0%, var(--bg-color) 60%); z-index: -1; }
.hero-content { z-index: 1; max-width: 800px; padding: 0 2rem; }
.hero h1 { margin-bottom: 1.5rem; }
.highlight { color: var(--accent-color); background: -webkit-linear-gradient(45deg, #00d2ff, #3a86ff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { margin-bottom: 2.5rem; font-size: 1.2rem; }
.hero-buttons { display: flex; gap: 1.5rem; justify-content: center; }

.btn { padding: 1rem 2.5rem; border-radius: 8px; font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: var(--transition-fast); text-transform: uppercase; }
.btn-primary { background: linear-gradient(45deg, #00d2ff, #3a86ff); color: #fff; border: none; box-shadow: 0 4px 15px rgba(0, 210, 255, 0.3); }
.btn-primary:hover { box-shadow: 0 6px 20px rgba(0, 210, 255, 0.5); transform: translateY(-2px); }
.btn-outline { background: transparent; border: 1px solid rgba(255,255,255,0.2); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.05); }

/* SOLUTIONS */
.section-header { margin-bottom: 4rem; text-align: center; }
.subtitle { color: var(--accent-color); font-size: 0.85rem; letter-spacing: 2px; text-transform: uppercase; display: block; margin-bottom: 1rem; }
.line { width: 50px; height: 2px; background: var(--accent-color); margin: 1rem auto 0; }
.solutions-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.solution-card { background: var(--bg-secondary); border: 1px solid var(--glass-border); padding: 3rem 2rem; border-radius: 12px; transition: transform var(--transition-fast); }
.solution-card:hover { transform: translateY(-10px); border-color: var(--accent-color); }
.icon { font-size: 3rem; margin-bottom: 1.5rem; }
.solution-card h3 { margin-bottom: 1rem; font-size: 1.5rem; }

/* FOOTER */
footer { background: #02040a; padding: 4rem 0 2rem; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-content { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; margin-bottom: 3rem; }
.footer-brand h3 { font-size: 1.8rem; margin-bottom: 0.5rem; }
.footer-brand span { color: var(--accent-color); font-weight: 300; }
.footer-bottom { text-align: center; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.05); font-size: 0.85rem; color: var(--text-secondary); }

/* ANIMATIONS */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .hero-buttons { flex-direction: column; }
    .hero h1 { font-size: 2.5rem; }
}