:root {
    --bg-body: #f8fafc;      
    --bg-card: #ffffff;      
    
    --text-main: #0f172a;    
    --text-body: #475569;    
    --text-light: #94a3b8;   
    
    --primary: #2563eb;      
    --primary-dark: #1e40af;  
    --accent: #0ea5e9;       
    
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --font-main: 'Inter', system-ui, sans-serif;
}

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

body {
    background-color: var(--bg-body);
    color: var(--text-body);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: 0.2s ease; }
ul { list-style: none; }


.clean-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.clean-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #cbd5e1;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.btn-primary {
    background-color: var(--text-main); 
    color: white;
    padding: 12px 32px;
    border-radius: 8px;
    font-weight: 600;
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--primary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.logo { 
    font-size: 1.25rem; 
    font-weight: 800; 
    color: var(--text-main); 
    display: flex; 
    align-items: center; 
    gap: 8px; 
}

.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 0.95rem; color: var(--text-body); font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-padding { padding: 100px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 32px; }

footer {
    background-color: #fff;
    border-top: 1px solid var(--border);
    padding-top: 80px;
    margin-top: 50px;
}

.footer-brand p { font-size: 0.9rem; margin-top: 16px; max-width: 300px; }
.footer-col h4 { color: var(--text-main); font-weight: 700; margin-bottom: 20px; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: var(--text-body); font-size: 0.9rem; }
.footer-links a:hover { color: var(--primary); }

.footer-bottom {
    border-top: 1px solid var(--border);
    margin-top: 60px;
    padding: 24px 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .grid-2 { grid-template-columns: 1fr; }
    .nav-links { display: none; } 
    .hero-title { font-size: 2.5rem !important; }
}
.partners-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px 60px; 
    opacity: 0.8;
}

.partner-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    cursor: default;
    filter: grayscale(100%);
    opacity: 0.7;
}

.partner-logo i {
    font-size: 1.8rem;
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: translateY(-2px);
    color: var(--text-main);
}

.partner-logo:hover .fa-google { color: #4285F4; }
.partner-logo:hover .fa-aws { color: #FF9900; }
.partner-logo:hover .fa-meta { color: #0668E1; }
.partner-logo:hover .fa-apple { color: #000; }
.partner-logo:hover .fa-android { color: #3DDC84; }