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

body, html {
    height: 100%;
    width: 100%;
    overflow-x: hidden;
}

.gradient-bg {
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    min-height: 100vh;
}

.card-shadow {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.input-focus:focus {
    outline: none;
    border-color: #1e40af;
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.btn-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(30, 64, 175, 0.3);
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.predikat-baik { color: #10b981; font-weight: bold; }
.predikat-memadai { color: #3b82f6; font-weight: bold; }
.predikat-kurang { color: #ef4444; font-weight: bold; }
.predikat-istimewa { color: #8b5cf6; font-weight: bold; }

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Ensure content fits on mobile */
@media (max-width: 640px) {
    .container-padding {
        padding: 1rem;
    }
    
    .mobile-stack {
        flex-direction: column;
    }
    
    .mobile-full {
        width: 100% !important;
    }
    
    .mobile-text-center {
        text-align: center;
    }
}