:root {
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    --background: #f2f2f7;
    --text-primary: #000000;
    --text-secondary: #6c757d;
    --white: #ffffff;
    --gray-light: #f2f2f7;
    --gray-dark: #1c1c1e;
    --primary: #6e62e5;
    --primary-gradient: linear-gradient(135deg, #8e7cf3 0%, #6e62e5 100%);
    --primary-hover: #8e7cf3;
    --secondary: #5856d6;
    --success: #34c759;
    --danger: #ff3b30;
    --warning: #ff9500;
    --navbar-height: 60px;
    --sidebar-width: 220px;
    --sidebar-collapsed-width: 0px;
    --transition-speed: 0.3s;
    --card-shadow: 0 1px 3px rgba(0,0,0,0.08);
    --blur-background: rgba(255, 255, 255, 0.85);
    --blur-dark-background: rgba(28, 28, 30, 0.85);
    --blur-effect: blur(20px);
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding-top: var(--navbar-height);
    background-color: var(--background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
}

.navbar {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border-bottom: 0.5px solid rgba(0,0,0,0.1);
    height: var(--navbar-height);
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    align-items: center;
    z-index: 1000;
    padding: 0 1.5rem;
}

.navbar-brand {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.navbar-brand:hover {
    color: var(--text-primary);
}

.navbar .nav-link {
    color: var(--text-primary);
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    transition: color 0.2s;
}

.navbar .nav-link:hover {
    color: var(--primary);
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: none;
}

.sidebar {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border-right: 0.5px solid rgba(0,0,0,0.1);
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--navbar-height));
    overflow-y: auto;
    transition: width var(--transition-speed);
    z-index: 999;
    padding: 1rem 0;
}

.sidebar .nav-link {
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    transition: all 0.2s;
    white-space: nowrap;
}

.sidebar .nav-link i {
    font-size: 1.1rem;
    min-width: 1.25rem;
    text-align: center;
}

.sidebar .nav-link:hover, 
.sidebar .nav-link.active {
    background-color: rgba(0, 122, 255, 0.1);
    color: var(--primary);
}

.main-content {
    margin-left: var(--sidebar-width);
    padding: 1.5rem;
    transition: margin-left var(--transition-speed);
}

.quick-actions {
    margin-top: 1.5rem;
    padding: 0 0.75rem;
}

.quick-actions-title {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 0.25rem;
    margin-bottom: 0.75rem;
}

.sidebar.collapsed + .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    text-align: center;
    padding: 0.6rem 1.2rem;
    border-radius: 12px;
    transition: all 0.2s;
    cursor: pointer;
    font-size: 0.95rem;
    background-color: rgba(255, 255, 255, 0.8);
    border: 0.5px solid rgba(0,0,0,0.1);
    color: var(--primary);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border-radius: 12px;
    font-weight: 500;
}

.btn-primary {
    background: var(--primary-gradient);
    border: none;
    box-shadow: 0 2px 12px rgba(110, 98, 229, 0.2);
    transition: all 0.3s ease;
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(110, 98, 229, 0.3);
    color: var(--white);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(110, 98, 229, 0.2);
    color: var(--white);
}

.btn-primary:focus {
    box-shadow: 0 0 0 3px rgba(110, 98, 229, 0.25);
    color: var(--white);
}

.btn-lg.btn-primary {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    border-radius: 15px;
}

.card {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border: 0.5px solid rgba(0,0,0,0.1);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    margin-bottom: 1.5rem;
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 0.5px solid rgba(0,0,0,0.1);
    font-weight: 600;
    font-size: 1.1rem;
}

.dropdown-menu {
    background-color: var(--blur-background);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border: var(--glass-border);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    padding: 0.5rem 0;
}

.dropdown-item {
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: all 0.2s;
    border-radius: 8px;
    margin: 0 0.5rem;
}

.dropdown-item:hover {
    background-color: rgba(0,0,0,0.05);
}

.table {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border: 0.5px solid rgba(0,0,0,0.1);
    border-radius: 12px;
    overflow: hidden;
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    padding: 1rem 1.5rem;
    border-bottom: 0.5px solid rgba(0,0,0,0.1);
}

.table td {
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    border-bottom: 0.5px solid rgba(0,0,0,0.05);
}

.dashboard-stat {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.dashboard-stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 500;
    border-radius: 6px;
    background-color: rgba(0, 122, 255, 0.1);
    color: var(--primary);
}

.badge-success {
    background-color: rgba(52, 199, 89, 0.1);
    color: var(--success);
}

.badge-warning {
    background-color: rgba(255, 149, 0, 0.1);
    color: var(--warning);
}

.badge-danger {
    background-color: rgba(255, 59, 48, 0.1);
    color: var(--danger);
}

.nav-tabs {
    display: flex;
    gap: 1rem;
    border: none;
    margin-bottom: 1.5rem;
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-tabs .nav-link.active {
    background-color: rgba(0, 122, 255, 0.1);
    color: var(--primary);
}

.footer {
    padding: 1rem 0;
    text-align: center;
    margin-top: auto;
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-top: 0.5px solid rgba(0,0,0,0.1);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
}

.footer .copyright {
    opacity: 0.8;
}

/* Mobile Navigation */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        bottom: 0;
        width: 100%;
        max-width: 280px;
        z-index: 1040;
        transition: transform 0.3s ease-in-out;
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0 !important;
        padding: 1rem;
    }

    .navbar {
        padding: 0.5rem 1rem;
    }

    .navbar-brand {
        font-size: 1rem;
    }

    .navbar .container-fluid {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }

    /* Improve touch targets */
    .nav-link,
    .btn {
        padding: 0.75rem 1rem;
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    /* Adjust card layouts */
    .card {
        margin-bottom: 1rem;
    }

    /* Make tables responsive */
    .table-responsive {
        margin-bottom: 1rem;
    }

    /* Adjust modal sizing */
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }

    /* Improve form elements for touch */
    input,
    select,
    textarea {
        font-size: 16px !important; /* Prevents iOS zoom */
        padding: 0.75rem !important;
    }

    /* Stats cards grid */
    .stats-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
}

/* Sidebar toggle animation */
.navbar-toggler {
    border: none;
    padding: 0.5rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Improved mobile dropdowns */
@media (max-width: 991.98px) {
    .dropdown-menu {
        position: fixed !important;
        top: auto !important;
        left: 0 !important;
        right: 0 !important;
        width: 100%;
        border-radius: 1rem 1rem 0 0;
        padding: 1rem;
        transform: translateY(100%);
        transition: transform 0.3s ease-in-out;
        margin: 0;
    }

    .dropdown-menu.show {
        transform: translateY(0);
        box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    }

    .dropdown-item {
        padding: 0.75rem 1rem;
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

/* Improved mobile buttons */
@media (max-width: 991.98px) {
    .btn {
        border-radius: 12px;
        margin-bottom: 0.5rem;
        width: 100%;
        justify-content: center;
    }

    .btn-group {
        display: flex;
        flex-direction: column;
        width: 100%;
    }

    .btn-group .btn {
        width: 100%;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
}

/* Mobile-friendly footer */
@media (max-width: 991.98px) {
    .footer {
        padding: 1rem;
        font-size: 0.7rem;
        text-align: center;
    }
}

/* Mobile-friendly form layout */
@media (max-width: 991.98px) {
    .form-group {
        margin-bottom: 1rem;
    }

    .form-label {
        margin-bottom: 0.5rem;
        font-size: 0.9rem;
    }

    .form-control {
        font-size: 16px;
        height: 44px;
    }

    .form-select {
        height: 44px;
        font-size: 16px;
    }
}

/* Responsive adjustments for user dropdown */
@media (max-width: 991.98px) {
    .navbar-nav .dropdown-menu {
        position: static !important;
        width: 100%;
        margin-top: 0.5rem;
    }

    .user-info {
        display: block !important;
    }

    .dropdown-toggle::after {
        display: none;
    }
}

/* Hover effect for desktop */
@media (min-width: 992px) {
    .nav-item.dropdown:hover .dropdown-menu {
        display: block;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }

    .sidebar.collapsed {
        width: 0;
    }

    .main-content {
        margin-left: 0;
    }

    .sidebar.collapsed + .main-content {
        margin-left: 0;
    }
}

/* Responsive Layout */
@media (max-width: 768px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }

    .sidebar .nav-link span {
        display: none;
    }

    .sidebar .nav-link i {
        margin: 0 auto;
    }

    .sidebar-header h5 {
        display: none;
    }

    .main-content {
        margin-left: var(--sidebar-collapsed-width);
    }
}

/* Add support for dark mode elements */
.dark-mode .card,
.dark-mode .navbar,
.dark-mode .sidebar,
.dark-mode .dropdown-menu,
.dark-mode .modal-content {
    background-color: var(--blur-dark-background);
}

.modal-content {
    background-color: var(--blur-background);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border: var(--glass-border);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.modal-header {
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border-bottom: var(--glass-border);
    border-radius: 12px 12px 0 0;
}

.modal-footer {
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border-top: var(--glass-border);
    border-radius: 0 0 12px 12px;
}