/* Simplified Bootstrap CSS for development */
:root {
    --bs-blue: #0d6efd;
    --bs-indigo: #6610f2;
    --bs-purple: #6f42c1;
    --bs-pink: #d63384;
    --bs-red: #dc3545;
    --bs-orange: #fd7e14;
    --bs-yellow: #ffc107;
    --bs-green: #198754;
    --bs-teal: #20c997;
    --bs-cyan: #0dcaf0;
    --bs-white: #fff;
    --bs-gray: #6c757d;
    --bs-gray-dark: #343a40;
    --bs-primary: #0d6efd;
    --bs-secondary: #6c757d;
    --bs-success: #198754;
    --bs-info: #0dcaf0;
    --bs-warning: #ffc107;
    --bs-danger: #dc3545;
    --bs-light: #f8f9fa;
    --bs-dark: #212529;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
}

.container {
    width: 100%;
    padding-right: var(--bs-gutter-x, 0.75rem);
    padding-left: var(--bs-gutter-x, 0.75rem);
    margin-right: auto;
    margin-left: auto;
}

.container-fluid {
    width: 100%;
    padding-right: var(--bs-gutter-x, 0.75rem);
    padding-left: var(--bs-gutter-x, 0.75rem);
    margin-right: auto;
    margin-left: auto;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: calc(-.5 * var(--bs-gutter-x));
    margin-left: calc(-.5 * var(--bs-gutter-x));
}

.col { flex: 1 0 0%; }
.col-auto { flex: 0 0 auto; width: auto; }
.col-1 { flex: 0 0 auto; width: 8.33333333%; }
.col-2 { flex: 0 0 auto; width: 16.66666667%; }
.col-3 { flex: 0 0 auto; width: 25%; }
.col-4 { flex: 0 0 auto; width: 33.33333333%; }
.col-5 { flex: 0 0 auto; width: 41.66666667%; }
.col-6 { flex: 0 0 auto; width: 50%; }
.col-7 { flex: 0 0 auto; width: 58.33333333%; }
.col-8 { flex: 0 0 auto; width: 66.66666667%; }
.col-9 { flex: 0 0 auto; width: 75%; }
.col-10 { flex: 0 0 auto; width: 83.33333333%; }
.col-11 { flex: 0 0 auto; width: 91.66666667%; }
.col-12 { flex: 0 0 auto; width: 100%; }

@media (min-width: 576px) {
    .col-sm { flex: 1 0 0%; }
    .col-sm-auto { flex: 0 0 auto; width: auto; }
    .col-sm-1 { flex: 0 0 auto; width: 8.33333333%; }
    .col-sm-2 { flex: 0 0 auto; width: 16.66666667%; }
    .col-sm-3 { flex: 0 0 auto; width: 25%; }
    .col-sm-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-sm-5 { flex: 0 0 auto; width: 41.66666667%; }
    .col-sm-6 { flex: 0 0 auto; width: 50%; }
    .col-sm-7 { flex: 0 0 auto; width: 58.33333333%; }
    .col-sm-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-sm-9 { flex: 0 0 auto; width: 75%; }
    .col-sm-10 { flex: 0 0 auto; width: 83.33333333%; }
    .col-sm-11 { flex: 0 0 auto; width: 91.66666667%; }
    .col-sm-12 { flex: 0 0 auto; width: 100%; }
}

@media (min-width: 768px) {
    .col-md { flex: 1 0 0%; }
    .col-md-auto { flex: 0 0 auto; width: auto; }
    .col-md-1 { flex: 0 0 auto; width: 8.33333333%; }
    .col-md-2 { flex: 0 0 auto; width: 16.66666667%; }
    .col-md-3 { flex: 0 0 auto; width: 25%; }
    .col-md-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-md-5 { flex: 0 0 auto; width: 41.66666667%; }
    .col-md-6 { flex: 0 0 auto; width: 50%; }
    .col-md-7 { flex: 0 0 auto; width: 58.33333333%; }
    .col-md-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-md-9 { flex: 0 0 auto; width: 75%; }
    .col-md-10 { flex: 0 0 auto; width: 83.33333333%; }
    .col-md-11 { flex: 0 0 auto; width: 91.66666667%; }
    .col-md-12 { flex: 0 0 auto; width: 100%; }
}

@media (min-width: 992px) {
    .col-lg { flex: 1 0 0%; }
    .col-lg-auto { flex: 0 0 auto; width: auto; }
    .col-lg-1 { flex: 0 0 auto; width: 8.33333333%; }
    .col-lg-2 { flex: 0 0 auto; width: 16.66666667%; }
    .col-lg-3 { flex: 0 0 auto; width: 25%; }
    .col-lg-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-lg-5 { flex: 0 0 auto; width: 41.66666667%; }
    .col-lg-6 { flex: 0 0 auto; width: 50%; }
    .col-lg-7 { flex: 0 0 auto; width: 58.33333333%; }
    .col-lg-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-lg-9 { flex: 0 0 auto; width: 75%; }
    .col-lg-10 { flex: 0 0 auto; width: 83.33333333%; }
    .col-lg-11 { flex: 0 0 auto; width: 91.66666667%; }
    .col-lg-12 { flex: 0 0 auto; width: 100%; }
}

/* Cards */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: #fff;
    background-clip: border-box;
    border: 1px solid rgba(0,0,0,.125);
    border-radius: 0.375rem;
}

.card-body {
    flex: 1 1 auto;
    padding: 1rem 1rem;
}

.card-header {
    padding: 0.5rem 1rem;
    margin-bottom: 0;
    background-color: rgba(0,0,0,.03);
    border-bottom: 1px solid rgba(0,0,0,.125);
}

.card-header:first-child {
    border-radius: calc(0.375rem - 1px) calc(0.375rem - 1px) 0 0;
}

/* Tables */
.table {
    width: 100%;
    margin-bottom: 1rem;
    color: #212529;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid #dee2e6;
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid #dee2e6;
}

.table tbody + tbody {
    border-top: 2px solid #dee2e6;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0,0,0,.05);
}

.table-responsive {
    overflow-x: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    border-radius: 0.375rem;
    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}

.btn-primary {
    color: #fff;
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-secondary {
    color: #fff;
    background-color: #6c757d;
    border-color: #6c757d;
}

.btn-success {
    color: #fff;
    background-color: #198754;
    border-color: #198754;
}

.btn-danger {
    color: #fff;
    background-color: #dc3545;
    border-color: #dc3545;
}

.btn-warning {
    color: #000;
    background-color: #ffc107;
    border-color: #ffc107;
}

.btn-info {
    color: #000;
    background-color: #0dcaf0;
    border-color: #0dcaf0;
}

.btn-light {
    color: #000;
    background-color: #f8f9fa;
    border-color: #f8f9fa;
}

.btn-dark {
    color: #fff;
    background-color: #212529;
    border-color: #212529;
}

.btn-outline-primary {
    color: #0d6efd;
    border-color: #0d6efd;
}

.btn-outline-primary:hover {
    color: #fff;
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    border-radius: 0.25rem;
}

.btn-lg {
    padding: 0.5rem 1rem;
    font-size: 1.25rem;
    border-radius: 0.5rem;
}

/* Forms */
.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: 0.375rem;
    transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}

.form-label {
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-select {
    display: block;
    width: 100%;
    padding: 0.375rem 2.25rem 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.375rem;
}

/* Alerts */
.alert {
    position: relative;
    padding: 1rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.375rem;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    color: #fff;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.375rem;
}

.bg-primary { background-color: #0d6efd !important; }
.bg-secondary { background-color: #6c757d !important; }
.bg-success { background-color: #198754 !important; }
.bg-danger { background-color: #dc3545 !important; }
.bg-warning { background-color: #ffc107 !important; }
.bg-info { background-color: #0dcaf0 !important; }
.bg-light { background-color: #f8f9fa !important; }
.bg-dark { background-color: #212529 !important; }

/* Navbar */
.navbar {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
}

.navbar-brand {
    padding-top: 0.3125rem;
    padding-bottom: 0.3125rem;
    margin-right: 1rem;
    font-size: 1.25rem;
    text-decoration: none;
    white-space: nowrap;
}

.navbar-nav {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.navbar-text {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.navbar-dark .navbar-brand,
.navbar-dark .navbar-nav .nav-link {
    color: rgba(255,255,255,.9);
}

.navbar-dark {
    background-color: #0d6efd !important;
}

/* List group */
.list-group {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    border-radius: 0.375rem;
}

.list-group-item {
    position: relative;
    display: block;
    padding: 0.5rem 1rem;
    color: #212529;
    text-decoration: none;
    background-color: #fff;
    border: 1px solid rgba(0,0,0,.125);
}

.list-group-item:first-child {
    border-top-left-radius: inherit;
    border-top-right-radius: inherit;
}

.list-group-item:last-child {
    border-bottom-right-radius: inherit;
    border-bottom-left-radius: inherit;
}

.list-group-item-action {
    width: 100%;
    color: #495057;
    text-align: inherit;
}

.list-group-item-action:hover,
.list-group-item-action:focus {
    z-index: 1;
    color: #495057;
    text-decoration: none;
    background-color: #f8f9fa;
}

.list-group-item.active {
    z-index: 2;
    color: #fff;
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.list-group-flush {
    border-radius: 0;
}

.list-group-flush > .list-group-item {
    border-width: 0 0 1px;
}

.list-group-flush > .list-group-item:last-child {
    border-bottom-width: 0;
}

/* Progress */
.progress {
    display: flex;
    height: 1rem;
    overflow: hidden;
    font-size: 0.75rem;
    background-color: #e9ecef;
    border-radius: 0.375rem;
}

.progress-bar {
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    color: #fff;
    text-align: center;
    white-space: nowrap;
    background-color: #0d6efd;
    transition: width .6s ease;
}

/* Utilities */
.text-center { text-align: center !important; }
.text-start { text-align: left !important; }
.text-end { text-align: right !important; }

.text-primary { color: #0d6efd !important; }
.text-secondary { color: #6c757d !important; }
.text-success { color: #198754 !important; }
.text-danger { color: #dc3545 !important; }
.text-warning { color: #ffc107 !important; }
.text-info { color: #0dcaf0 !important; }
.text-light { color: #f8f9fa !important; }
.text-dark { color: #212529 !important; }
.text-muted { color: #6c757d !important; }
.text-white { color: #fff !important; }

.bg-primary { background-color: #0d6efd !important; }
.bg-secondary { background-color: #6c757d !important; }
.bg-success { background-color: #198754 !important; }
.bg-danger { background-color: #dc3545 !important; }
.bg-warning { background-color: #ffc107 !important; }
.bg-info { background-color: #0dcaf0 !important; }
.bg-light { background-color: #f8f9fa !important; }
.bg-dark { background-color: #212529 !important; }
.bg-white { background-color: #fff !important; }

.m-0 { margin: 0 !important; }
.m-1 { margin: 0.25rem !important; }
.m-2 { margin: 0.5rem !important; }
.m-3 { margin: 1rem !important; }
.m-4 { margin: 1.5rem !important; }
.m-5 { margin: 3rem !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: 0.25rem !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 3rem !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: 0.25rem !important; }
.pt-2 { padding-top: 0.5rem !important; }
.pt-3 { padding-top: 1rem !important; }
.pt-4 { padding-top: 1.5rem !important; }
.pt-5 { padding-top: 3rem !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: 0.25rem !important; }
.pb-2 { padding-bottom: 0.5rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.pb-4 { padding-bottom: 1.5rem !important; }
.pb-5 { padding-bottom: 3rem !important; }

.shadow { box-shadow: 0 .5rem 1rem rgba(0,0,0,.15) !important; }

.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-baseline { align-items: baseline !important; }
.align-items-stretch { align-items: stretch !important; }

.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

.gap-2 { gap: 0.5rem !important; }

/* Responsive */
@media (min-width: 576px) {
    .container { max-width: 540px; }
}

@media (min-width: 768px) {
    .container { max-width: 720px; }
    .navbar-expand-lg .navbar-nav { flex-direction: row; }
    .navbar-expand-lg .navbar-nav .nav-link { padding-right: 0.5rem; padding-left: 0.5rem; }
}

@media (min-width: 992px) {
    .container { max-width: 960px; }
}

@media (min-width: 1200px) {
    .container { max-width: 1140px; }
}

@media (min-width: 1400px) {
    .container { max-width: 1320px; }
}