/* Main Application Styles - Responsive and Accessible Design */

:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-color: #dee2e6;
}

/* Global Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    color: #333;
    background-color: #fff;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-top: 0;
    margin-bottom: 0.5rem;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}

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

/* Forms */
.form-control,
.form-select {
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
    padding: 0.5rem 0.75rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25);
}

.form-control::placeholder {
    color: #999;
    opacity: 1;
}

/* Buttons */
.btn {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 0.375rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    cursor: pointer;
}

.btn:hover {
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.btn-primary {
    color: #fff;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

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

.table thead th {
    background-color: var(--light-color);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
}

.table tbody td {
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0.75rem;
}

.table tbody tr:hover {
    background-color: var(--light-color);
}

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.375rem;
}

.alert-primary {
    background-color: #cfe2ff;
    border-color: #b6d4fe;
    color: #084298;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #842029;
}

.alert-success {
    background-color: #d1e7dd;
    border-color: #badbcc;
    color: #0f5132;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffe69c;
    color: #664d03;
}

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

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

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

.badge-warning {
    background-color: var(--warning-color);
    color: #000;
}

/* Containers */
main {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 100px);
}

.container {
    width: 100%;
    padding-right: 1rem;
    padding-left: 1rem;
    margin-right: auto;
    margin-left: auto;
}

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

@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }
}

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

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

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip to content link */
.skip-to-content {
    position: absolute;
    left: -9999px;
    z-index: 999;
}

.skip-to-content:focus {
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 0 0 0.375rem 0.375rem;
}

/* Utility Classes */
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

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

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

.text-center { text-align: center; }

/* Modal Styles - CSS-based modal display (no Bootstrap.js required) */
.modal {
    display: none;
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.modal.modal-visible {
    display: block;
    opacity: 1;
}

.modal.fade .modal-dialog {
    transition: transform 0.3s ease-out;
    transform: translateY(-50px);
}

.modal.modal-visible.fade .modal-dialog {
    transform: translateY(0);
}

.modal-dialog {
    position: relative;
    width: auto;
    margin: 1.75rem auto;
    max-height: calc(100% - 3.5rem);
}

.modal-dialog-centered {
    display: flex;
    align-items: center;
    min-height: calc(100% - 3.5rem);
}

.modal-dialog-scrollable {
    display: flex;
    max-height: calc(100% - 3.5rem);
}

.modal-dialog-scrollable .modal-body {
    overflow-y: auto;
}

.modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    pointer-events: auto;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 0.3rem;
    outline: 0;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.modal-header {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid #dee2e6;
}

.modal-header .btn-close {
    padding: 0.25rem;
}

.modal-title {
    margin-bottom: 0;
    line-height: 1.5;
    font-size: 1.25rem;
    font-weight: 500;
}

.modal-body {
    position: relative;
    flex: 1 1 auto;
    padding: 1rem;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    flex-wrap: wrap;
    flex-shrink: 0;
    align-items: center;
    justify-content: flex-end;
    padding: 1rem;
    border-top: 1px solid #dee2e6;
    gap: 0.5rem;
}

.modal-footer > :not(:last-child) {
    margin-right: 0.25rem;
}

/* Modal backdrop */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1040;
    width: 100vw;
    height: 100vh;
    background-color: #000;
    opacity: 0;
    transition: opacity 0.15s linear;
    pointer-events: none;
}

.modal-backdrop.modal-backdrop-visible {
    opacity: 0.5;
    pointer-events: auto;
}

.modal-backdrop.fade {
    opacity: 0;
}

.modal-backdrop.modal-backdrop-visible.fade {
    opacity: 0.5;
    pointer-events: auto;
}

/* Prevent scrolling when modal is open */
body.modal-open {
    overflow: hidden;
}

/* Responsive modal sizes */
@media (max-width: 576px) {
    .modal-dialog {
        margin: 0.5rem;
        max-height: calc(100% - 1rem);
    }

    .modal-dialog-centered {
        min-height: calc(100% - 1rem);
    }
}

@media (min-width: 576px) {
    .modal-dialog {
        max-width: 500px;
    }
}

@media (min-width: 992px) {
    .modal-dialog {
        max-width: 800px;
    }
}

.text-right { text-align: right; }
.text-muted { color: #6c757d; }
.text-danger { color: #dc3545; }
.text-success { color: #28a745; }
.text-warning { color: #ffc107; }
.text-info { color: #17a2b8; }

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

.flex-wrap { flex-wrap: wrap; }
.flex-column { flex-direction: column; }
.justify-content-start { justify-content: flex-start; }
.justify-content-end { justify-content: flex-end; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.overflow-hidden { overflow: hidden; }
.text-truncate { 
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Print Styles */
@@media print {
    body {
        background-color: white;
    }
    
    a {
        text-decoration: underline;
    }
    
    .no-print {
        display: none !important;
    }
}