:root {
    --primary-color: #2C7A8C;
    --primary-dark: #194753;
    --secondary-color: #1e3a5f;
    --success-color: #388e3c;
    --info-color: #2196f3;
    --warning-color: #f57c00;
    --danger-color: #d32f2f;
    --bg-primary: #1671bb;
    --bg-secondary: #2C7A8C;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecef 100%);
    color: #333;
    min-height: 100vh;
}

.container-fluid {
    max-width: 1400px;
    margin: 0 auto;
}

.app-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 2rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    position: relative;
}

.app-header h1 {
    color: white;
    font-weight: 700;
    font-size: 2.5rem;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.schema-selector-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 2px solid var(--primary-color);
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(44, 122, 140, 0.15);
}

.schema-selector-card .card-body {
    padding: 1.5rem 2rem;
}

.schema-selector-label {
    color: var(--primary-dark);
    font-weight: 700;
    font-size: 1.1rem;
    margin: 0;
}

.schema-button-group {
    display: inline-flex;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-radius: 12px;
    overflow: hidden;
}

.btn-check {
    position: absolute;
    clip: rect(0,0,0,0);
    pointer-events: none;
}

.btn-schema {
    padding: 0.75rem 2rem;
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid var(--primary-color);
    background: white;
    color: var(--primary-color);
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 0;
    min-width: 180px;
}

.btn-schema:first-of-type {
    border-radius: 12px 0 0 12px;
    border-right: 1px solid var(--primary-color);
}

.btn-schema:last-of-type {
    border-radius: 0 12px 12px 0;
    border-left: 1px solid var(--primary-color);
}

.btn-check:checked + .btn-schema {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}


.btn-schema .fa {
    margin-right: 0.5rem;
}

.card {
    margin-bottom: 2rem;
    border: none;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    background: white;
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
    padding: 1.25rem 1.5rem;
    border-bottom: none;
    font-weight: 600;
    font-size: 1.1rem;
}

.card-header.bg-primary {
    background: linear-gradient(135deg, var(--bg-primary)) !important;
}

.card-header.bg-secondary {
    background: linear-gradient(135deg, var(--bg-secondary)) !important;
}

.card-body {
    padding: 1.5rem;
}


.btn {
    border-radius: 8px;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.btn-primary-action {
    background: linear-gradient(135deg, var(--primary-dark));
    color: white !important;
}

.btn-primary-action:hover,
.btn-primary-action:focus,
.btn-primary-action:active {
    color: white !important;
}

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

.btn-success:hover,
.btn-success:focus,
.btn-success:active {
    color: white !important;
}

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

.btn-warning:hover,
.btn-warning:focus,
.btn-warning:active {
    color: white !important;
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #1976d2 100%);
    color: white !important;
}

.btn-info:hover,
.btn-info:focus,
.btn-info:active {
    color: white !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white !important;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    color: white !important;
}

.form-control,
.form-control-file {
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    padding: 0.6rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-control-file:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(44, 122, 140, 0.15);
}


.table {
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #2c5282 100%);
    color: white;
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    padding: 1rem;
    vertical-align: middle;
    position: relative;
}

table.dataTable thead .sorting:before,
table.dataTable thead .sorting_asc:before,
table.dataTable thead .sorting_desc:before,
table.dataTable thead .sorting:after,
table.dataTable thead .sorting_asc:after,
table.dataTable thead .sorting_desc:after {
    position: absolute;
    display: block;
    opacity: 0.3;
    right: 0.5rem;
    line-height: 1.2;
    font-size: 0.8rem;
}

table.dataTable thead .sorting:before,
table.dataTable thead .sorting_asc:before,
table.dataTable thead .sorting_desc:before {
    content: "▲";
    top: 0.5rem;
}

table.dataTable thead .sorting:after,
table.dataTable thead .sorting_asc:after,
table.dataTable thead .sorting_desc:after {
    content: "▼";
    bottom: 0.5rem;
}

table.dataTable thead .sorting_asc:before {
    opacity: 1;
    color: white;
}

table.dataTable thead .sorting_desc:after {
    opacity: 1;
    color: white;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(44, 122, 140, 0.03);
}

.dataTables_wrapper .dataTables_filter {
    text-align: left !important;
}

.dataTables_wrapper .dataTables_length {
    text-align: right;
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    transition: all 0.3s ease;
    padding: 0.375rem 1.75rem 0.375rem 0.8rem;
    line-height: 1.5;
    vertical-align: middle;
    height: 2.5rem;
    display: inline-block;
}

.dataTables_wrapper .dataTables_filter input:focus,
.dataTables_wrapper .dataTables_length select:focus {
    border-color: var(--primary-color);
    outline: none;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%) !important;
    border-color: var(--primary-color) !important;
}

.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.25rem;
    font-weight: 500;
}

.alert-info {
    background-color: rgba(33, 150, 243, 0.1);
    color: #1976d2;
    border-left: 4px solid var(--info-color);
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-warning {
    background-color: rgba(255, 152, 0, 0.1);
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}

.alert-danger {
    background-color: rgba(244, 67, 54, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.loading {
    display: none;
    margin-top: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
}

.fa-spinner {
    color: var(--primary-color);
}

.modal-content {
    border-radius: 12px;
    border: none;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.modal-header {
    border-radius: 12px 12px 0 0;
    padding: 1.25rem 1.5rem;
}

.modal-header.bg-warning {
    background: var(--warning-color) !important;
}

.list-group-item {
    border-radius: 8px !important;
    margin-bottom: 0.5rem;
    border: 2px solid #e0e0e0;
    transition: all 0.3s ease;
}

.text-muted {
    color: #757575 !important;
}

.fa {
    margin-right: 0.5rem;
}

@media (max-width: 768px) {
    .app-header h1 {
        font-size: 1.75rem;
    }
    
    .card-body {
        padding: 1rem;
    }
}