:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #10b981;
            --secondary-dark: #0d9668;
            --accent: #f59e0b;
            --dark: #1e293b;
            --darker: #0f172a;
            --light: #f8fafc;
            --gray: #64748b;
            --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            --gradient-dark: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
        }
        
body {
    background: var(--light);
    font-family: "Segoe UI", Roboto, sans-serif;
    color: var(--dark);
    line-height: 1.8;
    padding-top: 4rem;
}

.container {
    max-width: 950px;
}

.card {
    border-radius: 16px;
    border: none;
    background: white;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    padding: 2rem;
}

h1,
h2 {
    color: var(--primary-dark);
    font-weight: 600;
    margin-top: 1.5rem;
}

h1 {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 2.4rem;
}

.section-icon {
    color: var(--primary);
    margin-right: .5rem;
}

.back-btn {
    margin-bottom: 2rem;
    background: var(--gradient);
    color: white;
    border: none;
    padding: .6rem 1.2rem;
    border-radius: 30px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all .3s ease;
}

.back-btn:hover {
    background: var(--gradient-dark);
    transform: translateY(-2px);
    color: white;
}