:root {
    --primary-color: #4f46e5;
    --success-color: #10b981;
    --bg-light: #f8fafc;
}

body {
    background-color: var(--bg-light);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #1e293b;
}

/* Card Modern */
.card-app {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s;
}

.card-app:hover {
    transform: translateY(-2px);
}

/* Scanner Frame Responsif */
#reader {
    border: none !important;
    border-radius: 1rem;
    overflow: hidden;
    background: #000;
}
#reader video {
    object-fit: cover;
    border-radius: 1rem;
}

/* Custom Bottom Navigation untuk Mobile */
@media (max-width: 768px) {
    .mobile-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: #fff;
        box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
        z-index: 1000;
        display: flex;
        justify-content: space-around;
        padding: 10px 0;
        border-top-left-radius: 1rem;
        border-top-right-radius: 1rem;
    }
    body {
        padding-bottom: 70px;
    }
}