:root {
    --apple-bg: #f5f5f7;
    --apple-card-bg: #ffffff;
    --apple-text: #1d1d1f;
    --apple-text-secondary: #86868b;
    --apple-blue: #0066cc;
    --apple-blue-hover: #004499;
    --apple-gray: #f2f2f2;
    --apple-border: #d2d2d7;
    --sf-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --radius: 12px;
}

body {
    background-color: var(--apple-bg);
    color: var(--apple-text);
    font-family: var(--sf-font);
    margin: 0;
    -webkit-font-smoothing: antialiased;
    letter-spacing: -0.01em;
}

.navbar {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--apple-border);
    padding: 0.8rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--apple-text) !important;
}

.nav-link {
    color: var(--apple-text-secondary) !important;
    font-weight: 400;
    font-size: 0.9rem;
    padding: 0.5rem 1rem !important;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--apple-text) !important;
}

.apple-card {
    background: var(--apple-card-bg);
    border-radius: var(--radius);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary {
    background-color: var(--apple-blue);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--apple-blue-hover);
    transform: none;
}

.btn-outline-danger {
    border-radius: 20px;
    font-size: 0.85rem;
}

.table {
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
}

.table thead th {
    border-bottom: 1px solid var(--apple-border);
    color: var(--apple-text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    padding: 1rem;
}

.table tbody td {
    padding: 1.2rem 1rem;
    border-bottom: 1px solid #f2f2f2;
    vertical-align: middle;
    font-size: 0.95rem;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.product-thumb {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 8px;
    background: #f2f2f2;
}

.form-control {
    background-color: #fcfcfd;
    border: 1px solid var(--apple-border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    color: var(--apple-text);
}

.form-control:focus {
    border-color: var(--apple-blue);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
    background-color: #fff;
}

.badge-stock {
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.8rem;
}

.bg-success-subtle { background-color: #e3f9e5 !important; color: #1b4332 !important; }
.bg-warning-subtle { background-color: #fff4e5 !important; color: #664d03 !important; }
.bg-danger-subtle { background-color: #ffe5e5 !important; color: #842029 !important; }

.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.modal-header {
    border-bottom: 1px solid #f2f2f2;
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #f2f2f2;
}

/* DataTables Overrides */
.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: 8px !important;
    border: none !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--apple-gray) !important;
    color: var(--apple-text) !important;
}

.dataTables_filter input {
    background: #f2f2f2 !important;
    border: none !important;
    border-radius: 8px !important;
    padding: 0.4rem 0.8rem !important;
}