:root {
    --primary-color: #4361ee;
    --primary-dark: #3a56d4;
    --secondary-color: #3f37c9;
    --success-color: #4cc9f0;
    --danger-color: #f72585;
    --warning-color: #f8961e;
    --info-color: #4895ef;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --white: #ffffff;
    --body-bg: #f5f7fb;
    --sidebar-bg: #ffffff;
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 80px;
    --card-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--body-bg);
    color: var(--dark-color);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

a:hover {
    color: var(--primary-dark);
}

/* Auth Pages */
.auth-page {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 500px;
}

.auth-card {
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.auth-header {
    padding: 30px;
    text-align: center;
    background-color: var(--primary-color);
    color: var(--white);
}

.auth-header h1 {
    font-size: 24px;
    margin-bottom: 10px;
}

.auth-header p {
    font-size: 14px;
    opacity: 0.8;
}

.auth-form {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group-icon {
    position: absolute;
    left: 15px;
    color: var(--gray-color);
}

.input-group input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: var(--transition);
}

.input-group input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.form-actions {
    margin-top: 30px;
}

.auth-footer {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn-info {
    background-color: var(--info-color);
    color: var(--white);
}

.btn-danger {
    background-color: var(--danger-color);
    color: var(--white);
}

.btn-warning {
    background-color: var(--warning-color);
    color: var(--white);
}

.btn-success {
    background-color: var(--success-color);
    color: var(--white);
}

/* Alerts */
.alert {
    padding: 12px 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-danger {
    background-color: rgba(247, 37, 133, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.alert-success {
    background-color: rgba(76, 201, 240, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-info {
    background-color: rgba(73, 80, 87, 0.1);
    color: var(--gray-color);
    border-left: 4px solid var(--gray-color);
}

/* App Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    position: fixed;
    height: 100%;
    z-index: 1000;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.sidebar-header h2 {
    font-size: 18px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
}

.sidebar-header h2 i {
    margin-right: 10px;
}

.sidebar-user {
    padding: 20px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 18px;
}

.user-info h4 {
    font-size: 14px;
    margin-bottom: 2px;
}

.user-info p {
    font-size: 12px;
    color: var(--gray-color);
}

.sidebar-nav {
    padding: 20px 0;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--dark-color);
    transition: var(--transition);
}

.sidebar-nav li a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar-nav li a:hover {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary-color);
}

.sidebar-nav li.active a {
    background-color: rgba(67, 97, 238, 0.2);
    color: var(--primary-color);
    border-left: 3px solid var(--primary-color);
}

.sidebar-footer {
    padding: 20px;
    font-size: 12px;
    color: var(--gray-color);
    text-align: center;
    position: absolute;
    bottom: 0;
    width: 100%;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition);
}

.content-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    background-color: var(--white);
}

.content-header h1 {
    font-size: 24px;
    margin-bottom: 0;
}

.header-actions .btn {
    margin-left: 10px;
}

.content-body {
    padding: 20px;
}

/* Stats Cards */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 20px;
    color: var(--white);
}

.stat-icon.bg-primary {
    background-color: var(--primary-color);
}

.stat-icon.bg-success {
    background-color: var(--success-color);
}

.stat-icon.bg-warning {
    background-color: var(--warning-color);
}

.stat-icon.bg-danger {
    background-color: var(--danger-color);
}

.stat-info h3 {
    font-size: 24px;
    margin-bottom: 5px;
}

.stat-info p {
    font-size: 14px;
    color: var(--gray-color);
    margin-bottom: 0;
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    margin-bottom: 20px;
}

.card-header {
    padding: 15px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 18px;
    margin-bottom: 0;
}

.card-body {
    padding: 20px;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.table th {
    font-weight: 600;
    color: var(--dark-color);
    background-color: rgba(0, 0, 0, 0.02);
}

.table tr:hover td {
    background-color: rgba(0, 0, 0, 0.02);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.badge-success {
    background-color: var(--success-color);
    color: var(--white);
}

.badge-warning {
    background-color: var(--warning-color);
    color: var(--white);
}

.badge-danger {
    background-color: var(--danger-color);
    color: var(--white);
}

.badge-info {
    background-color: var(--info-color);
    color: var(--white);
}

/* Forms */
.form-control {
    display: block;
    width: 100%;
    padding: 10px 15px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--dark-color);
    background-color: var(--white);
    background-clip: padding-box;
    border: 1px solid #ddd;
    border-radius: 5px;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.form-check-input {
    margin-right: 10px;
}

.form-check-label {
    margin-bottom: 0;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-dialog {
    width: 100%;
    max-width: 500px;
    margin: 0 20px;
}

.modal-lg {
    max-width: 800px;
}

.modal-content {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.modal-header {
    padding: 15px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h5 {
    margin-bottom: 0;
    font-size: 18px;
}

.modal-header .close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    opacity: 0.5;
    transition: var(--transition);
}

.modal-header .close:hover {
    opacity: 1;
}

.modal-body {
    padding: 20px;
    max-height: 70vh;
    overflow-y: auto;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.modal-footer .btn {
    margin-left: 10px;
}

/* Pagination */
.pagination {
    display: flex;
    padding-left: 0;
    list-style: none;
    border-radius: 5px;
}

.page-item:first-child .page-link {
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
}

.page-item:last-child .page-link {
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
}

.page-item.disabled .page-link {
    color: var(--gray-color);
    pointer-events: none;
    background-color: var(--white);
    border-color: #ddd;
}

.page-link {
    position: relative;
    display: block;
    padding: 8px 15px;
    margin-left: -1px;
    line-height: 1.25;
    color: var(--primary-color);
    background-color: var(--white);
    border: 1px solid #ddd;
    transition: var(--transition);
}

.page-link:hover {
    color: var(--primary-dark);
    background-color: rgba(0, 0, 0, 0.02);
    border-color: #ddd;
}

/* Responsive Table */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Utility Classes */
.text-muted {
    color: var(--gray-color) !important;
}

.bg-light {
    background-color: var(--light-color) !important;
}

.rounded {
    border-radius: 5px !important;
}

.mb-3 {
    margin-bottom: 15px !important;
}

/* Summernote Overrides */
.note-editor.note-frame {
    border: 1px solid #ddd !important;
    border-radius: 5px !important;
}

.note-editor.note-frame .note-toolbar {
    background-color: rgba(0, 0, 0, 0.02) !important;
    border-bottom: 1px solid #ddd !important;
    border-radius: 5px 5px 0 0 !important;
}

.note-editor.note-frame .note-statusbar {
    background-color: rgba(0, 0, 0, 0.02) !important;
    border-top: 1px solid #ddd !important;
    border-radius: 0 0 5px 5px !important;
}