:root {
    --purple-deep: #2c1a4d;
    --purple-sidebar: #3a2273;
    --purple-active: #4a3299;
    --orange-accent: #ff6b35;
    --green-accent: #2ec4b6;
    --body-bg: #f4f5f7;
}

body { 
    background-color: var(--body-bg); 
    font-family: 'Segoe UI', Roboto, sans-serif; 
    color: #333; 
}

/* Container khusus untuk Mobile-First */
.mobile-container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px 16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Card Voucher ala E-Commerce */
.voucher-card {
    background: white;
    border-radius: 16px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    padding: 16px;
    margin-bottom: 12px;
    transition: transform 0.2s;
}

.voucher-card:active {
    transform: scale(0.98);
}

/* Tombol Besar untuk Jempol HP */
.btn-mobile-buy {
    background: var(--orange-accent);
    color: white;
    font-weight: 700;
    border-radius: 12px;
    padding: 10px 16px;
    border: none;
    font-size: 14px;
    white-space: nowrap;
}

/* Box Voucher Sukses */
.success-box {
    background: #f8f7ff;
    border: 2px dashed var(--purple-sidebar);
    border-radius: 16px;
    padding: 24px 16px;
    margin: 20px 0;
}

/* Admin Sidebar (Tetap responsif untuk desktop) */
.sidebar { background-color: var(--purple-sidebar); min-height: 100vh; color: white; }
.sidebar .nav-link { color: rgba(255,255,255,0.8); margin: 6px 15px; border-radius: 8px; padding: 12px; display: block; text-decoration: none; }
.sidebar .nav-link:hover, .sidebar .nav-link.active { background-color: var(--purple-active); color: white; font-weight: 600; }
.card-custom { border: none; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.02); background: white; }
.stat-box { border-left: 4px solid var(--purple-active); padding: 15px; background: #f8f9fa; border-radius: 8px; }