:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #ec4899;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 0;
}

.navbar {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
    color: white;
    text-align: center;
    border-radius: 0 0 50px 50px;
    margin-bottom: 50px;
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border-radius: 12px;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.3);
}

.card {
    border: none;
    border-radius: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.form-control {
    border-radius: 12px;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
}

.form-control:focus {
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color);
}

.qr-preview {
    max-width: 250px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade {
    animation: fadeIn 0.6s ease-out forwards;
}

.cursor-pointer {
    cursor: pointer;
}