:root {
    --bg: #03050a;
    --accent: #00e5ff;
    --accent-glow: rgba(0, 229, 255, 0.4);
    --text-primary: #f0f2f5;
    --text-secondary: #94a3b8;
    --wa-green: #25d366;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { background-color: var(--bg); color: var(--text-primary); font-family: 'Inter', sans-serif; overflow-x: hidden; line-height: 1.6; }

.glass-nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 5%; background: rgba(3, 5, 10, 0.95);
    backdrop-filter: blur(15px); position: fixed; width: 100%; z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.main-logo { height: 70px; width: auto; mix-blend-mode: screen; filter: brightness(1.2) drop-shadow(0 0 10px var(--accent-glow)); }

.nav-links { display: flex; align-items: center; gap: 15px; }
.nav-links a { color: var(--text-primary); text-decoration: none; font-family: 'Fira Code', monospace; font-size: 0.85rem; }

.hero-tech { height: 80vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 120px 20px 40px; }
h1 { font-size: clamp(1.8rem, 7vw, 4rem); font-family: 'Fira Code', monospace; margin-bottom: 20px; }
.highlight { color: var(--accent); text-shadow: 0 0 25px var(--accent-glow); animation: pulseGlow 3s infinite; }

.typewriter {
    font-family: 'Fira Code', monospace; 
    color: var(--accent);
    background: rgba(255, 255, 255, 0.05); 
    padding: 10px 15px; border-radius: 6px;
    font-size: 1rem;
    display: inline-block;
    min-width: 280px;
    border-right: 4px solid var(--accent); 
    animation: blinkCursor 0.8s step-end infinite;
    white-space: nowrap;
    overflow: hidden;
}

.grid-tech { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 25px; padding: 40px 5% 80px; }
.card-tech { background: rgba(255,255,255,0.03); padding: 40px 25px; border-radius: 20px; border: 1px solid rgba(255,255,255,0.08); text-decoration: none; color: inherit; text-align: center; transition: 0.4s; animation: floatAnim 5s ease-in-out infinite; }
.card-tech:hover { border-color: var(--accent); transform: translateY(-10px); background: rgba(0, 229, 255, 0.05); }
.icon-header { font-size: 3.5rem; margin-bottom: 20px; display: block; }

.whatsapp-float { position: fixed; width: 55px; height: 55px; bottom: 25px; right: 25px; background-color: var(--wa-green); border-radius: 50px; display: flex; align-items: center; justify-content: center; z-index: 1001; animation: pulseWA 2s infinite; }
.whatsapp-float img { width: 30px; height: 30px; }

.main-footer { padding: 40px 20px; text-align: center; border-top: 1px solid rgba(255, 255, 255, 0.05); }
.main-footer p { color: var(--text-secondary); font-size: 0.8rem; letter-spacing: 1px; }

@keyframes blinkCursor { from, to { border-color: transparent; } 50% { border-color: var(--accent); } }
@keyframes pulseGlow { 0%, 100% { text-shadow: 0 0 20px var(--accent-glow); } 50% { text-shadow: 0 0 40px var(--accent); } }
@keyframes floatAnim { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-15px); } }
@keyframes pulseWA { 0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); } 70% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); } 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); } }

@media (max-width: 600px) { .main-logo { height: 50px; } .nav-links a { font-size: 0.7rem; } .grid-tech { grid-template-columns: 1fr; } .typewriter { font-size: 0.8rem; min-width: 220px; } }