* { margin: 0; padding: 0; box-sizing: border-box;
}
:root {
    --bg-primary: #1A1E28; --bg-secondary: #1F2430; --bg-elevated: #252B38; --fg-primary: #E6E7E2; 
    --fg-secondary: #8A94A8; --accent-blue: #73D0FF; --accent-cyan: #95E6CB; --accent-purple: #D4BFFF; 
    --accent-orange: #FFA759; --accent-yellow: #FFCC66; --accent-green: #BAE67E; --border-color: 
    #2E3440;
    --border-hover: #3D4452;
}
html { scroll-behavior: smooth;
}
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, Oxygen, Ubuntu, 
    Cantarell, sans-serif; background: var(--bg-primary); color: var(--fg-primary); line-height: 1.6; 
    -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
/* Floating Navbar - Desktop */ .navbar { position: fixed; top: 20px; left: 50%; transform: 
    translateX(-50%); background: rgba(31, 36, 48, 0.45); backdrop-filter: blur(20px); border-radius: 
    50px; padding: 12px 30px; border: 1px solid var(--border-color); z-index: 1000; box-shadow: 0 8px 
    32px rgba(0, 0, 0, 0.4); transition: all 0.3s ease;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; gap: 40px;
}
.nav-center { display: flex; align-items: center; gap: 40px;
}
.logo { font-size: 1.5rem; font-weight: 800; background: linear-gradient(135deg, var(--accent-blue), 
    var(--accent-purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; 
    background-clip: text; text-decoration: none; letter-spacing: -0.02em;
}
.nav-links { display: flex; list-style: none; gap: 30px;
}
.nav-links a { color: var(--fg-secondary); text-decoration: none; font-weight: 500; font-size: 0.95rem; 
    transition: all 0.3s ease; position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--fg-primary);
}
.nav-links a::after { content: ''; position: absolute; width: 0; height: 2px; bottom: -5px; left: 50%; 
    background: var(--accent-blue); transition: all 0.3s ease; transform: translateX(-50%);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%;
}
/* Auth buttons */ .auth-buttons { display: flex; gap: 15px; align-items: center;
}
.auth-btn { padding: 8px 20px; border-radius: 25px; text-decoration: none; font-weight: 500; font-size: 
    0.9rem; transition: all 0.3s ease;
}
.mobile-auth-buttons { display: none;
}
.login-btn { color: var(--fg-secondary); border: 1px solid var(--border-color);
}
.login-btn:hover { color: var(--fg-primary); border-color: var(--border-hover);
}
.signup-btn { background: var(--accent-blue); color: var(--bg-primary); white-space: nowrap;
}
.signup-btn:hover { background: var(--accent-cyan); transform: translateY(-1px);
}
/* Mobile Menu Toggle - Hidden on desktop */ .menu-toggle { display: none;
}
/* Mobile floating bubble button */ .mobile-menu-bubble { display: none; position: fixed; bottom: 20px; 
    right: 20px; width: 60px; height: 60px; background: var(--bg-secondary); border: 2px solid 
    var(--accent-blue); border-radius: 50%; z-index: 1001; cursor: pointer; align-items: center; 
    justify-content: center; box-shadow: 0 8px 24px rgba(115, 208, 255, 0.3); transition: all 0.3s 
    ease;
}
.mobile-menu-bubble:hover { transform: scale(1.05); box-shadow: 0 12px 32px rgba(115, 208, 255, 0.4);
}
.mobile-menu-bubble.active { background: var(--accent-blue);
}
.bubble-icon { width: 24px; height: 24px; position: relative; display: flex; flex-direction: column; 
    justify-content: center; gap: 5px;
}
.bubble-icon span { display: block; height: 2px; background: var(--accent-blue); border-radius: 2px; 
    transition: all 0.3s ease;
}
.mobile-menu-bubble.active .bubble-icon span { background: var(--bg-primary);
}
.mobile-menu-bubble.active .bubble-icon span:nth-child(1) { transform: rotate(45deg) translateY(7px);
}
.mobile-menu-bubble.active .bubble-icon span:nth-child(2) { opacity: 0;
}
.mobile-menu-bubble.active .bubble-icon span:nth-child(3) { transform: rotate(-45deg) translateY(-7px);
}
/* Mobile menu overlay */ .mobile-menu-overlay { display: none; position: fixed; top: 0; left: 0; 
    right: 0; bottom: 0; background: rgba(26, 30, 40, 0.95); backdrop-filter: blur(10px); z-index: 
    1000; opacity: 0; transition: opacity 0.3s ease;
}
.mobile-menu-overlay.active { opacity: 1;
}
.mobile-menu-content { display: flex; flex-direction: column; align-items: center; justify-content: 
    center; height: 100%; padding: 20px;
}
.mobile-nav-links { list-style: none; text-align: center; margin-bottom: 40px;
}
.mobile-nav-links li { margin: 20px 0;
}
.mobile-nav-links a { color: var(--fg-primary); text-decoration: none; font-size: 1.5rem; font-weight: 
    600; transition: all 0.3s ease; display: inline-block;
}
.mobile-nav-links a:hover, .mobile-nav-links a.active { color: var(--accent-blue); transform: 
    translateX(10px);
}
.mobile-menu-auth { display: flex; flex-direction: column; gap: 15px; width: 100%; max-width: 300px;
}
.mobile-menu-auth .auth-btn { width: 100%; text-align: center; padding: 12px 24px;
}
/* Section Styling */ .section { min-height: 100vh; width: 100%; display: flex; align-items: center; 
    justify-content: center; position: relative; padding: 100px 20px 60px;
}
.section-content { max-width: 1200px; width: 100%;
}
.section h1 { font-size: 5rem; font-weight: 900; text-align: center; letter-spacing: -2px; 
    margin-bottom: 20px; background: linear-gradient(135deg, var(--fg-primary), var(--fg-secondary)); 
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.section-info { font-size: 1.25rem; color: var(--fg-secondary); text-align: center; max-width: 700px; 
    margin: 0 auto 40px;
}
/* Service Cards Grid */ .services-grid { display: grid; grid-template-columns: repeat(auto-fit, 
    minmax(250px, 1fr)); gap: 1.5rem; margin-top: 3rem;
}
.service-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 
    16px; padding: 2rem; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); position: relative;
}
.service-card::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; 
    background: var(--accent-blue); border-radius: 16px 0 0 16px; opacity: 0; transition: opacity 0.3s 
    ease;
}
.service-card:hover { transform: translateY(-4px); border-color: var(--border-hover); box-shadow: 0 
    12px 32px rgba(0, 0, 0, 0.3);
}
.service-card:hover::before { opacity: 1;
}
.service-card:nth-child(2)::before { background: var(--accent-purple);
}
.service-card:nth-child(3)::before { background: var(--accent-orange);
}
.service-card:nth-child(4)::before { background: var(--accent-green);
}
.service-card:nth-child(5)::before { background: var(--accent-yellow);
}
.service-icon { width: 12px; height: 12px; border-radius: 50%; background: var(--accent-cyan); 
    margin-bottom: 1rem; box-shadow: 0 0 12px var(--accent-cyan);
}
.service-card h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; color: 
    var(--fg-primary);
}
.service-card p { color: var(--fg-secondary); font-size: 0.9375rem; line-height: 1.6;
}
.service-card a { color: var(--accent-blue); text-decoration: none; font-weight: 500; font-size: 
    0.9375rem; margin-top: 1rem; display: inline-block; transition: all 0.2s ease;
}
.service-card a:hover { transform: translateX(4px);
}
/* Individual Section Backgrounds */
#home {
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1e2330 100%);
}
#services {
    background: linear-gradient(135deg, #1e2330 0%, var(--bg-primary) 100%);
}
#resources {
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1e2330 100%);
}
#network {
    background: linear-gradient(135deg, #1e2330 0%, var(--bg-primary) 100%);
}
#about {
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1e2330 100%);
}
/* Footer */ .footer { background: transparent; padding: 60px 20px 30px; display: flex; 
    justify-content: center;
}
.footer-container { background: var(--bg-secondary); border: 1px solid var(--border-color); 
    border-radius: 20px; padding: 40px; max-width: 1000px; width: 100%;
}
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 
    30px; margin-bottom: 30px;
}
.footer-section h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 15px; color: 
    var(--fg-primary);
}
.footer-section p, .footer-section a { color: var(--fg-secondary); text-decoration: none; 
    margin-bottom: 8px; display: block; transition: color 0.3s ease; font-size: 0.9rem;
}
.footer-section a:hover { color: var(--accent-blue);
}
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid var(--border-color); 
    color: var(--fg-secondary); font-size: 0.85rem;
}
/* Responsive Design */ @media (max-width: 768px) { /* Hide desktop navbar */ .navbar { display: none;
    }
    /* Show mobile bubble menu */ .mobile-menu-bubble { display: flex;
    }
    .mobile-menu-overlay { display: block;
    }
    .section { padding: 80px 20px 40px;
    }
    .section h1 { font-size: 3rem;
    }
    .section-info { font-size: 1.125rem;
    }
    .services-grid { grid-template-columns: 1fr;
    }
    .footer-container { margin: 0 10px; padding: 30px 20px;
    }
    .footer-content { grid-template-columns: 1fr; text-align: center; gap: 20px;
    }
}
@media (max-width: 480px) { .section h1 { font-size: 2.25rem;
    }
    .section-info { font-size: 1rem;
    }
    .mobile-menu-bubble { width: 56px; height: 56px;
    }
}
/* Smooth scroll enhancement */ @media (prefers-reduced-motion: no-preference) { html { 
        scroll-behavior: smooth;
    }
}