/* Modern Hospital Theme - Glassmorphism & Gradient */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --background-start: #e0eafc;
    --background-end: #cfdef3;
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

body {
    background: linear-gradient(135deg, var(--background-start) 0%, var(--background-end) 100%);
    min-height: 100vh;
    font-family: 'Inter', sans-serif; /* Recommended modern font */
}

/* Glassmorphism Card Utility */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 15px;
    padding: 20px;
}

/* Loading button animation */
.btn-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
}
.btn-loading::after {
    content: '';
    position: absolute;
    width: 1rem;
    height: 1rem;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: button-loading-spinner 1s ease infinite;
}
@keyframes button-loading-spinner {
    from { transform: rotate(0turn); }
    to { transform: rotate(1turn); }
}

/* Sidebar & Wrapper Layout */
#wrapper {
    overflow-x: hidden;
    min-height: 100vh;
}

.glass-sidebar {
    min-height: 100vh;
    width: 250px;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-right: 1px solid var(--glass-border);
    transition: margin 0.25s ease-out;
}

.glass-sidebar .list-group-item {
    transition: all 0.2s ease;
}

.glass-sidebar .list-group-item:hover, .active-menu {
    background: rgba(13, 110, 253, 0.1) !important;
    color: var(--primary-color) !important;
    transform: translateX(5px);
}

#page-content-wrapper {
    min-width: 100vw;
}

@media (min-width: 992px) {
    #page-content-wrapper {
        min-width: 0;
        width: 100%;
    }
}

#wrapper.toggled #sidebar-wrapper {
    margin-left: -250px;
}