/* Modern Professional Design System for NVIT */
:root {
    /* Color Palette - Trust & Technology */
    --primary: #0f172a; /* Slate 900 - Deep, professional dark blue */
    --primary-light: #1e293b; /* Slate 800 */
    --accent: #2563eb; /* Blue 600 - Vibrant, trustworthy blue */
    --accent-hover: #1d4ed8; /* Blue 700 */
    --accent-light: #eff6ff; /* Blue 50 */
    --success: #10b981; /* Emerald 500 */
    --text-main: #334155; /* Slate 700 - Softer than black for reading */
    --text-light: #64748b; /* Slate 500 */
    --bg-body: #f8fafc; /* Slate 50 - Clean, light background */
    --bg-white: #ffffff;
    
    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --container-width: 1280px;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    
    /* Shadows - Soft & Modern */
    --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);
    --shadow-hover: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}


 .step-container {
            display: none;
        }
        
        .step-container.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .progress-bar {
            width: 100%;
            height: 8px;
            background: #e2e8f0;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 2rem;
        }
        
        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #667eea, #764ba2);
            transition: width 0.3s ease;
        }
        
        .option-card {
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            padding: 1.5rem;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-bottom: 1rem;
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }
        
        .option-card:hover {
            border-color: #667eea;
            background: #f8fafc;
            transform: translateX(5px);
        }
        
        .option-card.selected {
            border-color: #667eea;
            background: #eff6ff;
        }
        
        .option-card input[type="radio"],
        .option-card input[type="checkbox"] {
            margin: 0.25rem 0 0 0;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            cursor: pointer;
            accent-color: #667eea;
        }
        
        .option-card-content {
            flex: 1;
        }
        
        .info-box {
            padding: 1.5rem;
            border-radius: 12px;
            margin: 1.5rem 0;
        }
        
        .info-box.success {
            background: #f0fdf4;
            border: 2px solid #86efac;
            color: #166534;
        }
        
        .info-box.warning {
            background: #fef3c7;
            border: 2px solid #fcd34d;
            color: #92400e;
        }
        
        .info-box.info {
            background: #eff6ff;
            border: 2px solid #93c5fd;
            color: #1e40af;
        }
        
        .form-input {
            width: 100%;
            /* padding: 0.75rem 1rem; */
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .form-input:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }
        
        .form-input.error {
            border-color: #ef4444;
        }
        
        .btn-nav {
            padding: 0.75rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            font-size: 1rem;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
        }
        
        .btn-secondary {
            background: #f1f5f9;
            color: #64748b;
        }
        
        .btn-secondary:hover {
            background: #e2e8f0;
        }

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-grid .btn {
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    h1 { font-size: 2.5rem; }
}