/* Base Variables */
:root {
    --primary: #4F8CFF;
    --primary-light: rgba(79, 140, 255, 0.2);
    --secondary: #7B61FF;
    --text-dark: #1A202C;
    --text-muted: #718096;
    --bg-light: #F7FAFC;
    --bg-glass: rgba(255, 255, 255, 0.85);
    --bg-glass-card: rgba(255, 255, 255, 0.6);
    --white: #FFFFFF;
    --card-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    --border: rgba(255, 255, 255, 0.4);
    --border-card: rgba(0, 0, 0, 0.05);
}

/* Rest/Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { 
    font-family: 'Inter', sans-serif; 
    color: var(--text-dark); 
    background: var(--bg-light);
    line-height: 1.6;
    scroll-behavior: smooth;
    overflow-x: hidden;
    position: relative;
}

/* Background Blobs for Glassmorphism Context */
.bg-blob-1 { position: fixed; top: -100px; right: -100px; width: 500px; height: 500px; background: var(--primary); border-radius: 50%; filter: blur(120px); opacity: 0.15; z-index: -1; animation: float 15s ease-in-out infinite; }
.bg-blob-2 { position: fixed; bottom: -100px; left: -100px; width: 400px; height: 400px; background: var(--secondary); border-radius: 50%; filter: blur(120px); opacity: 0.15; z-index: -1; animation: float 20s ease-in-out infinite reverse; }

@keyframes float {
    0% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(50px) scale(1.1); }
    100% { transform: translateY(0px) scale(1); }
}

h1, h2, h3, h4 { font-family: 'Sora', sans-serif; }

/* Navigation - Glassmorphism */
nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 5%; 
    background: var(--bg-glass);
    backdrop-filter: blur(12px); 
    -webkit-backdrop-filter: blur(12px);
    position: sticky; top: 0; z-index: 100;
    border-bottom: 1px solid var(--border);
}
.logo { font-size: 24px; font-weight: 700; color: var(--primary); letter-spacing: -1px; text-decoration: none;}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { text-decoration: none; color: var(--text-dark); font-weight: 500; transition: color 0.2s;}
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

.btn { padding: 12px 24px; border-radius: 8px; font-weight: 600; text-decoration: none; display: inline-block; transition: all 0.2s; cursor: pointer;}
.btn-primary { background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); color: white; border: none; box-shadow: 0 4px 15px rgba(79, 140, 255, 0.3);}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(79, 140, 255, 0.4); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); }

/* Glass Cards */
.glass-card {
    background: var(--bg-glass-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--card-shadow);
    padding: 40px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.glass-card:hover { transform: translateY(-5px); box-shadow: 0 15px 35px rgba(31, 38, 135, 0.1); }

/* General Sections */
section { padding: 40px 5%; position: relative; z-index: 1; }
.section-header { text-align: center; margin-bottom: 30px; max-width: 800px; margin-left: auto; margin-right: auto; }
.section-header h2 { font-size: 44px; margin-bottom: 16px; letter-spacing: -1px;}
.section-header p { font-size: 18px; color: var(--text-muted); }

/* Grids */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }

/* Typography */
.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}
.tag { display: inline-block; padding: 6px 16px; background: var(--primary-light); color: var(--primary); border-radius: 20px; font-size: 14px; font-weight: 600; margin-bottom: 24px; border: 1px solid rgba(79,140,255,0.3);}

/* Animations for scroll (handled by JS intersection observer) */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* Footer */
footer { text-align: center; padding: 40px; border-top: 1px solid rgba(0,0,0,0.05); color: var(--text-muted); background: var(--bg-glass); backdrop-filter: blur(10px); margin-top: auto;}

/* Forms */
.form-group { margin-bottom: 20px; text-align: left; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 14px; }
.form-group input, .form-group textarea { width: 100%; padding: 14px; border-radius: 12px; border: 1px solid rgba(0,0,0,0.1); background: rgba(255,255,255,0.8); font-family: 'Inter'; font-size: 16px; transition: border-color 0.3s; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }

@media (max-width: 768px) {
    .grid-2, .feature-row { grid-template-columns: 1fr !important; gap: 40px !important; }
    .nav-links { display: none; }
    section { padding: 60px 5%; }
}