:root {
    --sidebar-width: 260px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f9;
}

#wrapper {
    min-height: 100vh;
}

#sidebar-wrapper {
    width: var(--sidebar-width);
    min-height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
    transition: margin 0.25s ease-out;
}

#page-content-wrapper {
    margin-left: var(--sidebar-width);
    transition: margin 0.25s ease-out;
}

#wrapper.toggled #sidebar-wrapper {
    margin-left: calc(-1 * var(--sidebar-width));
}

#wrapper.toggled #page-content-wrapper {
    margin-left: 0;
}

.list-group-item {
    border: none;
    padding: 12px 20px;
}

.list-group-item:hover, .list-group-item.active {
    background-color: #0d6efd !important;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.card-stat {
    transition: transform 0.2s;
}

.card-stat:hover {
    transform: translateY(-3px);
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.badge-low-stock {
    background-color: #dc3545;
}

.badge-expired {
    background-color: #6c757d;
}

.badge-expiring {
    background-color: #ffc107;
    color: #000;
}

/* Login page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    max-width: 420px;
    width: 100%;
    border-radius: 15px;
}

/* POS */
.pos-medicine-list {
    max-height: 400px;
    overflow-y: auto;
}

.pos-cart {
    max-height: 450px;
    overflow-y: auto;
}

@media (max-width: 768px) {
    #sidebar-wrapper {
        margin-left: calc(-1 * var(--sidebar-width));
    }
    #page-content-wrapper {
        margin-left: 0;
    }
    #wrapper.toggled #sidebar-wrapper {
        margin-left: 0;
    }
}