:root {
    --bg-base: #0f172a;
    --bg-surface: rgba(30, 41, 59, 0.6);
    --bg-surface-hover: rgba(30, 41, 59, 0.8);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-gradient: linear-gradient(135deg, #00E4EA 0%, #3555EA 100%);
    --accent-glow: rgba(0, 228, 234, 0.4);
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Outfit', system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body { background-color: var(--bg-base); color: var(--text-primary); font-family: var(--font-sans); line-height: 1.6; overflow-x: hidden; min-height: 100vh; display: flex; flex-direction: column; }

.gradient-text { background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.section-title { font-family: var(--font-display); font-size: 2.5rem; text-align: center; margin-bottom: 3rem; font-weight: 700; }

.glass-card { background: var(--bg-surface); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 16px; padding: 2rem; transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease; }

.navbar { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 5%; position: sticky; top: 0; z-index: 100; background: rgba(15, 23, 42, 0.8); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, 0.05); }

.logo { display: flex; align-items: center; gap: 0.75rem; font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; }

.logo-icon { width: 24px; height: 24px; border-radius: 6px; background: var(--accent-gradient); }

.nav-links { display: flex; list-style: none; gap: 2rem; }

.nav-links a { color: var(--text-secondary); text-decoration: none; font-weight: 600; transition: color 0.2s ease; }

.nav-links a:hover { color: var(--text-primary); }

.nav-actions { display: flex; gap: 1rem; align-items: center; }

.btn-primary { background: var(--accent-gradient); color: white; padding: 0.75rem 1.5rem; border-radius: 8px; text-decoration: none; font-weight: 600; transition: transform 0.2s ease, box-shadow 0.2s ease; border: none; cursor: pointer; display: inline-block; }

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 15px var(--accent-glow); }

.btn-secondary { background: rgba(255, 255, 255, 0.1); color: var(--text-primary); padding: 0.75rem 1.5rem; border-radius: 8px; text-decoration: none; font-weight: 600; transition: background 0.2s ease; border: 1px solid rgba(255, 255, 255, 0.1); }

.btn-secondary:hover { background: rgba(255, 255, 255, 0.15); }

.btn-large { padding: 1rem 2rem; font-size: 1.1rem; }

.hero { min-height: 80vh; display: flex; align-items: center; justify-content: center; padding: 4rem 5%; position: relative; gap: 4rem; }

.hero-bg-gradient { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 600px; height: 600px; background: var(--accent-gradient); filter: blur(150px); opacity: 0.15; z-index: -1; border-radius: 50%; }

.hero-content { flex: 1; max-width: 600px; }

.hero-title { font-family: var(--font-display); font-size: 4rem; line-height: 1.1; margin-bottom: 1.5rem; font-weight: 800; }

.hero-subtitle { font-size: 1.25rem; color: var(--text-secondary); margin-bottom: 2.5rem; max-width: 500px; }

.hero-buttons { display: flex; gap: 1rem; }

.hero-graphic { flex: 1; display: flex; justify-content: center; align-items: center; perspective: 1000px; }

.server-card { width: 350px; height: 250px; transform: rotateX(15deg) rotateY(-15deg); position: relative; display: flex; flex-direction: column; justify-content: center; gap: 1rem; }

.server-card:hover { transform: rotateX(5deg) rotateY(-5deg) scale(1.05); }

.status-indicator { width: 12px; height: 12px; border-radius: 50%; position: absolute; top: 1.5rem; right: 1.5rem; }

.status-indicator.online { background-color: #22c55e; box-shadow: 0 0 10px #22c55e; }

.code-line { height: 12px; background: rgba(255, 255, 255, 0.1); border-radius: 6px; width: 80%; }

.code-line.short { width: 40%; }

.ip-address { margin-top: 2rem; font-family: monospace; color: var(--text-secondary); font-size: 0.9rem; }

.ip-address span { color: var(--text-primary); font-weight: bold; }

.features { padding: 6rem 5%; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; max-width: 1200px; margin: 0 auto; }

.feature-card { display: flex; flex-direction: column; align-items: flex-start; }

.feature-card:hover { transform: translateY(-5px); background: var(--bg-surface-hover); border-color: rgba(168, 85, 247, 0.3); }

.feature-icon { font-size: 2rem; margin-bottom: 1.5rem; background: rgba(255, 255, 255, 0.05); width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; border-radius: 12px; }

.feature-card h3 { font-size: 1.25rem; margin-bottom: 1rem; font-family: var(--font-display); }

.feature-card p { color: var(--text-secondary); font-size: 0.95rem; }

footer { margin-top: auto; border-top: 1px solid rgba(255, 255, 255, 0.05); background: rgba(15, 23, 42, 0.5); padding: 4rem 5% 2rem; }

.footer-content { display: flex; justify-content: space-between; max-width: 1200px; margin: 0 auto 3rem; flex-wrap: wrap; gap: 2rem; }

.footer-brand p { color: var(--text-secondary); margin-top: 1rem; max-width: 250px; }

.footer-links { display: flex; gap: 4rem; }

.link-column { display: flex; flex-direction: column; gap: 0.75rem; }

.link-column h4 { margin-bottom: 0.5rem; }

.link-column a { color: var(--text-secondary); text-decoration: none; transition: color 0.2s ease; }

.link-column a:hover { color: var(--text-primary); }

.footer-bottom { text-align: center; color: var(--text-secondary); font-size: 0.875rem; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.05); }

@media (max-width: 768px) {
    .hero { flex-direction: column; text-align: center; padding-top: 2rem; }
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { margin: 0 auto 2rem; }
    .hero-buttons { justify-content: center; flex-direction: column; }
    .nav-links { display: none; }
    .server-card { transform: none; }
    .server-card:hover { transform: scale(1.02); }
    .footer-content { flex-direction: column; }
}

.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(15, 23, 42, 0.8); backdrop-filter: blur(5px); align-items: center; justify-content: center; }

.modal-content { width: 100%; max-width: 400px; position: relative; }

.close-btn { position: absolute; top: 1rem; right: 1.5rem; font-size: 1.5rem; cursor: pointer; color: var(--text-secondary); transition: color 0.2s; }

.close-btn:hover { color: var(--text-primary); }

.form-group { margin-bottom: 1.25rem; }

.form-group label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; color: var(--text-secondary); }

.form-group input { width: 100%; padding: 0.75rem 1rem; border-radius: 8px; background: rgba(15, 23, 42, 0.6); border: 1px solid rgba(255, 255, 255, 0.1); color: var(--text-primary); font-family: var(--font-sans); outline: none; transition: border-color 0.2s, box-shadow 0.2s; }

.form-group input:focus { border-color: rgba(0, 228, 234, 0.6); box-shadow: 0 0 10px rgba(0, 228, 234, 0.2); }

.error-message { color: #ef4444; font-size: 0.85rem; margin-bottom: 1rem; min-height: 1rem; }