/* ============================================================
   site.css — Full design system
   ============================================================ */

/* 1. Design Tokens
   ------------------------------------------------------------ */
:root {
    /* Colors */
    --color-primary:        #2563eb;
    --color-primary-hover:  #1d4ed8;
    --color-primary-light:  #dbeafe;
    --color-primary-dark:   #1e40af;

    --color-danger:         #ef4444;
    --color-danger-hover:   #dc2626;
    --color-danger-light:   #fee2e2;

    --color-success:        #22c55e;
    --color-success-hover:  #16a34a;
    --color-success-light:  #dcfce7;

    --color-warning:        #eab308;
    --color-warning-light:  #fef9c3;

    --color-gray-50:        #f9fafb;
    --color-gray-100:       #f3f4f6;
    --color-gray-200:       #e5e7eb;
    --color-gray-300:       #d1d5db;
    --color-gray-400:       #9ca3af;
    --color-gray-500:       #6b7280;
    --color-gray-600:       #4b5563;
    --color-gray-700:       #374151;
    --color-gray-800:       #1f2937;
    --color-gray-900:       #111827;

    --color-red-600:        #dc2626;
    --color-red-800:        #991b1b;
    --color-green-600:      #16a34a;
    --color-green-800:      #166534;
    --color-blue-800:       #1e40af;
    --color-yellow-800:     #854d0e;

    /* Spacing */
    --space-1:   0.25rem;
    --space-2:   0.5rem;
    --space-3:   0.75rem;
    --space-4:   1rem;
    --space-5:   1.25rem;
    --space-6:   1.5rem;
    --space-8:   2rem;
    --space-12:  3rem;

    /* Page Widths */
    --width-page:        56rem;
    --width-page-narrow: 42rem;
    --width-page-form:   28rem;
    --width-nav:         80rem;

    /* Typography Scale */
    --text-xs:   0.75rem;
    --lh-xs:     1rem;
    --text-sm:   0.875rem;
    --lh-sm:     1.25rem;
    --text-base: 1rem;
    --lh-base:   1.5rem;
    --text-lg:   1.125rem;
    --lh-lg:     1.75rem;
    --text-xl:   1.25rem;
    --lh-xl:     1.75rem;
    --text-2xl:  1.5rem;
    --lh-2xl:    2rem;
}

/* 2. Base Reset & Defaults
   ------------------------------------------------------------ */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, sans-serif;
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
    font-size: var(--text-base);
    line-height: var(--lh-base);
}

a {
    color: inherit;
    text-decoration: none;
}

button, input, select, textarea {
    font: inherit;
}

img {
    max-width: 100%;
    display: block;
}

/* 3. Layout Components
   ------------------------------------------------------------ */

/* Page Containers */
.page-container {
    max-width: var(--width-page);
    margin: 0 auto;
    padding: var(--space-6) var(--space-4);
}

.page-container-narrow {
    max-width: var(--width-page-narrow);
    margin: 0 auto;
    padding: var(--space-6) var(--space-4);
}

.page-container-form {
    max-width: var(--width-page-form);
    margin: 0 auto;
    padding: var(--space-2);
    width: 100%;
}

/* Stack — vertical spacing */
.stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.stack-sm {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.stack-lg {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* Row — horizontal layout */
.row {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.row-sm {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.row-between {
    justify-content: space-between;
}

.row-wrap {
    flex-wrap: wrap;
}

/* Grid */
.grid-auto {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr));
}

/* 4. Card Components
   ------------------------------------------------------------ */
.card {
    background: white;
    box-shadow: 0 1px 3px rgb(0 0 0 / 0.1), 0 1px 2px rgb(0 0 0 / 0.06);
    padding: var(--space-6);
}

.card-compact {
    background: white;
    box-shadow: 0 1px 3px rgb(0 0 0 / 0.1), 0 1px 2px rgb(0 0 0 / 0.06);
    padding: var(--space-4);
    transition: background-color 150ms;
}

.card-compact:hover {
    background: var(--color-gray-50);
}

.card-dense {
    background: white;
    box-shadow: 0 1px 3px rgb(0 0 0 / 0.1), 0 1px 2px rgb(0 0 0 / 0.06);
    padding: var(--space-3);
    transition: background-color 150ms, box-shadow 150ms;
}

.card-dense:hover {
    background: var(--color-gray-50);
}

.card-dense:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.card-inactive {
    background: white;
    box-shadow: 0 1px 3px rgb(0 0 0 / 0.1), 0 1px 2px rgb(0 0 0 / 0.06);
    padding: var(--space-6);
    opacity: 0.6;
}

/* 5. Button Components
   ------------------------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    line-height: 1.25rem;
    border: none;
    cursor: pointer;
    transition: background-color 150ms;
}

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

.btn-secondary {
    background-color: var(--color-gray-500);
    color: white;
}
.btn-secondary:hover {
    background-color: var(--color-gray-600);
}

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

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

.btn-outline {
    background-color: white;
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-300);
}
.btn-outline:hover {
    background-color: var(--color-gray-50);
}

.btn-disabled {
    background-color: var(--color-gray-100);
    color: var(--color-gray-400);
    border: 1px solid var(--color-gray-200);
    cursor: not-allowed;
}

.btn-lg {
    padding: var(--space-3);
    font-size: var(--text-xl);
}

/* 6. Badge Components
   ------------------------------------------------------------ */
.badge {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    padding: 0.125rem 0.625rem;
}

.badge-success {
    background-color: var(--color-success-light);
    color: var(--color-green-800);
}

.badge-danger {
    background-color: var(--color-danger-light);
    color: var(--color-red-800);
}

.badge-warning {
    background-color: var(--color-warning-light);
    color: var(--color-yellow-800);
}

.badge-info {
    background-color: var(--color-primary-light);
    color: var(--color-blue-800);
}

.badge-neutral {
    background-color: var(--color-gray-100);
    color: var(--color-gray-800);
}

/* 7. Alert Components
   ------------------------------------------------------------ */
.alert {
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
}

.alert-success {
    background-color: var(--color-success-light);
    color: var(--color-green-800);
}

.alert-danger {
    background-color: var(--color-danger-light);
    color: var(--color-red-800);
}

.alert-warning {
    background-color: var(--color-warning-light);
    color: var(--color-yellow-800);
}

.alert-info {
    background-color: var(--color-primary-light);
    color: var(--color-blue-800);
}

/* Alert banners */
.alert-banner {
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
    border-left: 4px solid;
}

.alert-banner-danger {
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
    border-left: 4px solid var(--color-danger);
    background-color: var(--color-danger-light);
    color: var(--color-red-800);
}

.alert-banner-warning {
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
    border-left: 4px solid var(--color-warning);
    background-color: var(--color-warning-light);
    color: var(--color-yellow-800);
}

.alert-banner-success {
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
    border-left: 4px solid var(--color-success);
    background-color: var(--color-success-light);
    color: var(--color-green-800);
}

/* 8. Form Components
   ------------------------------------------------------------ */
.input {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-900);
    font-size: var(--text-base);
    background: white;
    outline-offset: 2px;
}
.input:focus {
    outline: 2px solid var(--color-primary);
    border-color: var(--color-primary);
}

.input-lg {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-900);
    font-size: var(--text-xl);
    background: white;
    outline-offset: 2px;
}
.input-lg:focus {
    outline: 2px solid var(--color-primary);
    border-color: var(--color-primary);
}

.select {
    border: 1px solid var(--color-gray-300);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    background: white;
}

.label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--space-1);
}

.checkbox {
    width: 1rem;
    height: 1rem;
    accent-color: var(--color-primary);
}

.form-error {
    margin-top: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-red-600);
}

.form-group {
    margin-bottom: var(--space-4);
}

/* 9. Link Components
   ------------------------------------------------------------ */
.link {
    color: var(--color-primary);
}
.link:hover {
    color: var(--color-primary-dark);
}

.link-nav {
    color: var(--color-primary);
    font-weight: 500;
}
.link-nav:hover {
    color: var(--color-primary-dark);
}

.link-danger {
    color: var(--color-danger);
    font-size: var(--text-sm);
    font-weight: 500;
}
.link-danger:hover {
    color: var(--color-danger-hover);
}

.link-success {
    color: var(--color-success);
    font-size: var(--text-sm);
    font-weight: 500;
}
.link-success:hover {
    color: var(--color-success-hover);
}

.link-muted {
    color: var(--color-gray-600);
}
.link-muted:hover {
    color: var(--color-gray-800);
}

/* 10. Breadcrumb
   ------------------------------------------------------------ */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-4);
}
.breadcrumb a {
    color: var(--color-primary);
}
.breadcrumb a:hover {
    color: var(--color-primary-dark);
}
.breadcrumb-sep {
    margin: 0 var(--space-1);
}

/* 11. Tab Component
   ------------------------------------------------------------ */
.tab {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    transition: background-color 150ms;
}
.tab:hover {
    background: var(--color-gray-100);
}
.tab-active {
    background: var(--color-gray-700);
    color: white;
}
.tab-active:hover {
    background: var(--color-gray-800);
}

/* 12. Typography
   ------------------------------------------------------------ */
.page-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
}

.section-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-gray-900);
}

.text-muted {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

/* 13. Table Component
   ------------------------------------------------------------ */
.table {
    width: 100%;
    text-align: left;
    color: var(--color-gray-600);
    border-collapse: collapse;
}

.table th {
    padding: var(--space-3) var(--space-4);
    font-weight: 600;
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    text-transform: uppercase;
    font-size: var(--text-sm);
}

.table td {
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-gray-200);
}

.table-clickable tbody tr {
    cursor: pointer;
    transition: background-color 150ms;
}
.table-clickable tbody tr:hover {
    background-color: var(--color-gray-100);
}

/* 14. Empty State
   ------------------------------------------------------------ */
.empty-state {
    padding: var(--space-12) 0;
    text-align: center;
}

.empty-state-icon {
    margin: 0 auto;
    height: 3rem;
    width: 3rem;
    color: var(--color-gray-400);
}

.empty-state-title {
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-900);
}

.empty-state-text {
    margin-top: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.empty-state-action {
    margin-top: var(--space-6);
}

/* 15. Navigation
   ------------------------------------------------------------ */
.nav-bar {
    background: white;
}

.nav-inner {
    max-width: var(--width-nav);
    margin: 0 auto;
    padding: 0 var(--space-2);
    display: flex;
    justify-content: space-between;
    height: 2.5rem;
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-500);
    display: flex;
    align-items: center;
}
.nav-link:hover {
    color: var(--color-gray-700);
}

.nav-link-active {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-900);
    display: flex;
    align-items: center;
    border-bottom: 2px solid var(--color-primary);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--text-xl);
    color: var(--color-gray-600);
    cursor: pointer;
    padding: var(--space-2);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* 17. Path Pair — stacked file mapping rows
   ------------------------------------------------------------ */
.path-pair-list {
    display: flex;
    flex-direction: column;
}

.path-pair {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-gray-200);
}

.path-pair-paths {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.path-pair-old {
    color: var(--color-gray-500);
    font-size: var(--text-sm);
    word-break: break-all;
}

.path-pair-arrow {
    color: var(--color-gray-400);
    flex-shrink: 0;
}

.path-pair-new {
    font-family: monospace;
    font-size: var(--text-sm);
    font-weight: 600;
    word-break: break-all;
}

.path-pair-meta {
    font-size: var(--text-xs);
    color: var(--color-gray-400);
}

/* 17b. Sort File Row — file list on sort preview
   ------------------------------------------------------------ */
.sort-file-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--color-gray-100);
    border-left: 4px solid transparent;
}

.sort-file-name {
    flex: 1;
    font-size: var(--text-sm);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.thumb-card-selected {
    box-shadow: inset 0 0 0 3px var(--color-primary);
}

.transaction-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.transaction-card {
    color: inherit;
    text-decoration: none;
}

.transaction-card-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    column-gap: var(--space-3);
}

.transaction-card-main,
.transaction-card-side {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    min-width: 0;
}

.transaction-card-side {
    white-space: nowrap;
}

.transaction-card-title,
.transaction-card-amount,
.transaction-card-meta {
    margin: 0;
}

.transaction-card-title,
.transaction-card-amount {
    line-height: 1.25;
}

.transaction-card-title {
    font-weight: 500;
    color: var(--color-gray-900);
}

.transaction-card-amount {
    font-weight: 600;
}

.transaction-card-meta {
    font-size: var(--text-sm);
    line-height: 1.2;
    color: var(--color-gray-500);
}

.transaction-card-pending {
    background: var(--color-danger-light);
}

.transaction-card-uncategorized {
    background: var(--color-warning-light);
}

@media (min-width: 640px) {
    .transaction-card-side {
        text-align: right;
        align-items: flex-end;
    }
}

/* 18. Utility Classes
   ------------------------------------------------------------ */

/* Display & Visibility */
.hidden  { display: none; }
[hidden] { display: none !important; }
.block   { display: block; }

/* Flexbox Shortcuts */
.flex-1        { flex: 1 1 0%; }
.flex-col      { flex-direction: column; }
.flex-wrap     { flex-wrap: wrap; }
.flex-shrink-0 { flex-shrink: 0; }
.items-start   { align-items: flex-start; }
.items-end     { align-items: flex-end; }
.self-start    { align-self: flex-start; }

/* Text */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-left   { text-align: left; }
.font-bold   { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.text-sm     { font-size: var(--text-sm); }
.text-xs     { font-size: var(--text-xs); }
.text-lg     { font-size: var(--text-lg); }
.text-xl     { font-size: var(--text-xl); }
.text-2xl    { font-size: var(--text-2xl); }
.capitalize  { text-transform: capitalize; }
.uppercase   { text-transform: uppercase; }
.line-through { text-decoration: line-through; }
.whitespace-nowrap { white-space: nowrap; }

/* Width */
.w-full { width: 100%; }

/* Semantic Colors */
.text-red   { color: var(--color-red-600); }
.text-green { color: var(--color-green-600); }
.text-gray  { color: var(--color-gray-600); }

/* Overflow */
.overflow-x { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* HTMX */
.htmx-indicator {
    opacity: 0;
    transition: opacity 200ms;
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    opacity: 1;
}

/* 19. App-Specific: Manuals
   ------------------------------------------------------------ */
.manual-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.manual-card-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    min-width: 0;
}

.manual-card-thumbnail {
    width: 7rem;
    padding: var(--space-2);
    border: 1px solid var(--color-gray-200);
    align-self: flex-start;
    background: var(--color-gray-50);
    flex-shrink: 0;
}

.manual-card-image {
    width: 100%;
    height: 7rem;
    object-fit: contain;
}

.manual-card-body {
    min-width: 0;
    flex: 1 1 0%;
}

.manual-card-category {
    display: flex;
    align-items: center;
}

.manual-card-title {
    margin: 0;
    font-size: var(--text-lg);
    line-height: var(--lh-lg);
    font-weight: 600;
    color: var(--color-gray-900);
}

.manual-card-meta {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.manual-card-notes {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--color-gray-700);
    white-space: pre-line;
}

.manual-card-documents {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-gray-200);
}

.manual-document-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.manual-document-link {
    justify-content: flex-start;
    width: 100%;
    text-align: left;
    white-space: normal;
}

/* 19b. App-Specific: Chat
   ------------------------------------------------------------ */
.chat-layout {
    max-width: var(--width-nav);
    margin: 0 auto;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.chat-list-item {
    display: flex;
    flex-direction: column;
    padding: var(--space-2) var(--space-3);
    background: white;
    border-left: 3px solid transparent;
    color: var(--color-gray-900);
    text-decoration: none;
}

.chat-list-item:hover {
    background: var(--color-gray-50);
}

.chat-list-item-active {
    border-left-color: var(--color-primary);
    background: var(--color-primary-light);
}

.chat-list-title {
    font-size: var(--text-sm);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    min-width: 0;
    flex: 1 1 0%;
}

.chat-log {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    min-height: 12rem;
    max-height: calc(100dvh - 16rem);
    overflow-y: auto;
    padding: var(--space-2) 0;
}

.chat-message {
    max-width: 48rem;
    padding: var(--space-3) var(--space-4);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    box-shadow: 0 1px 3px rgb(0 0 0 / 0.1), 0 1px 2px rgb(0 0 0 / 0.06);
}

.chat-message-user {
    align-self: flex-end;
    background: var(--color-primary-light);
}

.chat-message-assistant {
    align-self: flex-start;
    background: white;
}

.chat-message-pending::after {
    content: "…";
    color: var(--color-gray-500);
}

.chat-message-notice,
.chat-message-error {
    align-self: stretch;
    max-width: none;
    box-shadow: none;
    font-size: var(--text-sm);
}

.chat-message-notice {
    background: var(--color-warning-light);
    color: var(--color-yellow-800);
}

.chat-message-error {
    background: var(--color-danger-light);
    color: var(--color-red-800);
}

.chat-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.chat-input {
    resize: vertical;
    font-family: inherit;
}

.chat-controls {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    /* Fits the longest option, "Extra high effort". */
    width: 16rem;
    flex-shrink: 0;
}

.chat-buttons {
    display: flex;
    gap: var(--space-2);
    flex: 1 1 auto;
}

.chat-buttons .btn {
    flex: 1 1 0%;
}

.chat-compose {
    display: flex;
    gap: var(--space-2);
    align-items: stretch;
}

.chat-compose .chat-input {
    flex: 1 1 0%;
    min-width: 0;
}

.chat-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.chat-attachments[hidden] {
    display: none;
}

.chat-attachment {
    position: relative;
    width: 4rem;
    height: 4rem;
    border: 1px solid var(--color-gray-300);
    background: white;
}

.chat-attachment img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.chat-attachment-remove {
    position: absolute;
    top: 0;
    right: 0;
    width: 1.5rem;
    height: 1.5rem;
    padding: 0;
    border: none;
    background: rgb(17 24 39 / 0.8);
    color: white;
    font-size: var(--text-sm);
    line-height: 1;
    cursor: pointer;
}

.chat-attachment-remove:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.chat-images {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    white-space: normal;
}

.chat-images a {
    display: block;
    max-width: 100%;
}

.chat-images img {
    display: block;
    max-width: 100%;
    max-height: 12rem;
}

.chat-markdown {
    white-space: normal;
}

.chat-markdown > :first-child {
    margin-top: 0;
}

.chat-markdown > :last-child {
    margin-bottom: 0;
}

.chat-markdown :is(p, ul, ol, pre, blockquote, table) {
    margin: 0 0 var(--space-3);
}

.chat-markdown :is(h1, h2, h3, h4, h5, h6) {
    margin: var(--space-4) 0 var(--space-2);
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1.3;
}

.chat-markdown h1 {
    font-size: var(--text-xl);
}

.chat-markdown h2 {
    font-size: var(--text-lg);
}

.chat-markdown :is(ul, ol) {
    padding-left: var(--space-6);
}

.chat-markdown li + li {
    margin-top: var(--space-1);
}

.chat-markdown :is(li > ul, li > ol) {
    margin: var(--space-1) 0 0;
}

.chat-markdown code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.875em;
    background: var(--color-gray-100);
    padding: 0 0.25em;
}

.chat-markdown pre {
    background: var(--color-gray-100);
    padding: var(--space-3);
    overflow-x: auto;
}

.chat-markdown pre code {
    background: none;
    padding: 0;
}

.chat-markdown blockquote {
    border-left: 3px solid var(--color-gray-300);
    padding-left: var(--space-3);
    color: var(--color-gray-700);
}

/* A wide table scrolls inside the answer instead of widening it. */
.chat-markdown table {
    display: block;
    overflow-x: auto;
    border-collapse: collapse;
}

.chat-markdown :is(th, td) {
    border: 1px solid var(--color-gray-300);
    padding: var(--space-1) var(--space-2);
    text-align: left;
    vertical-align: top;
}

.chat-markdown th {
    background: var(--color-gray-50);
    font-weight: 600;
}

.chat-markdown a {
    color: var(--color-primary);
    text-decoration: underline;
}

.chat-markdown hr {
    border: 0;
    border-top: 1px solid var(--color-gray-200);
    margin: var(--space-4) 0;
}

.chat-stopped {
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    white-space: normal;
}

.chat-images + .chat-text {
    margin-top: var(--space-2);
}

.chat-drop-active .chat-form {
    outline: 2px dashed var(--color-primary);
    outline-offset: 4px;
}

.chat-input:disabled,
.chat-form .select:disabled,
.chat-form .btn:disabled {
    background: var(--color-gray-100);
    color: var(--color-gray-400);
    cursor: not-allowed;
}

/* 20. Responsive
   ------------------------------------------------------------ */
@media (max-width: 639px) {
    .nav-inner {
        flex-wrap: wrap;
        height: auto;
        min-height: 2.5rem;
    }
    .nav-toggle {
        display: flex;
        align-items: center;
    }
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        order: 10;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-link,
    .nav-link-active {
        padding: var(--space-3) var(--space-2);
    }
    .nav-link-active {
        border-bottom: none;
        background-color: var(--color-primary-light);
    }
    .nav-user {
        display: none;
    }
    .hidden-mobile {
        display: none !important;
    }
    .stack-on-mobile {
        flex-direction: column;
    }
    .chat-compose {
        flex-direction: column;
    }
    /* The model and effort lists share one row; the buttons go on the next row. */
    .chat-controls {
        width: auto;
        flex-direction: row;
        flex-wrap: wrap;
    }
    .chat-controls .select {
        flex: 1 1 0%;
        min-width: 0;
    }
    .chat-buttons {
        flex: 1 0 100%;
        justify-content: flex-end;
    }
    .chat-buttons .btn {
        flex: 0 0 auto;
    }
}

@media (min-width: 640px) {
    .page-container {
        padding-inline: var(--space-6);
    }
    .page-container-narrow {
        padding-inline: var(--space-6);
    }
    .page-container-form {
        padding: var(--space-4);
    }
    .nav-inner {
        padding: 0 var(--space-4);
    }
    .nav-toggle {
        display: none;
    }
    .nav-links {
        display: flex;
        flex-direction: row;
    }
}

@media (max-width: 1023px) {
    /* The chat list sits above the conversation; keep it from pushing it off screen. */
    .chat-sidebar nav {
        max-height: 8.5rem;
        overflow-y: auto;
    }
}

@media (min-width: 1024px) {
    .chat-layout {
        flex-direction: row;
        align-items: flex-start;
    }

    .chat-sidebar {
        width: 16rem;
        flex-shrink: 0;
    }

    .chat-log {
        max-height: calc(100dvh - 13rem);
    }

    .manual-card {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(14rem, 18rem);
        gap: var(--space-5);
        align-items: start;
    }

    .manual-card-main {
        flex-direction: row;
        align-items: flex-start;
    }

    .manual-card-thumbnail {
        width: 6rem;
    }

    .manual-card-image {
        height: 6rem;
    }

    .manual-card-documents {
        min-width: 0;
        padding-top: 0;
        padding-left: var(--space-4);
        border-top: none;
        border-left: 1px solid var(--color-gray-200);
    }
}
/* Photo Organizer gallery and controls. */
.photo-page .breadcrumb {
    overflow-wrap: anywhere;
}

.photo-page .breadcrumb > * {
    min-width: 0;
    max-width: 100%;
}

.photo-page :is(h1, h2, h3, p) {
    margin-top: 0;
    overflow-wrap: anywhere;
}

.photo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.photo-selected,
.photo-card.photo-selected:hover {
    outline: 3px solid var(--color-primary);
    outline-offset: -3px;
    background: white;
}
.photo-selected .photo-paths { background: var(--color-primary); }
.photo-selected .photo-paths :is(.photo-old-path, .photo-new-path) { color: white; }
.photo-selected .photo-new-path { font-weight: 700; }
.photo-selected .photo-paths [data-proposal-status]:not([hidden]) { background: white; padding: var(--space-1); }

@media (min-width: 640px) {
    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr));
    }
}

/* Photo navigation precedes variable-height locations on every screen. */
.photo-section-bar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr) minmax(0, 1fr); align-items: center; gap: var(--space-3); }
/* Reserve status space even when empty; long errors scroll rather than move the gallery. */
.photo-status-area { height: 2.5rem; overflow: auto; overflow-wrap: anywhere; display: flex; flex-direction: column; justify-content: safe center; align-items: center; text-align: center; }
.photo-status-area > :not(:empty) { flex-shrink: 0; line-height: 1rem; max-width: 100%; padding: var(--space-1) var(--space-2); background: var(--color-primary-light); color: var(--color-primary-dark); font-weight: 600; }
.photo-status-area > :empty { display: none; }
@media (max-width: 767px) {
    .photo-section-bar { grid-template-columns: auto minmax(0, 1fr); }
}
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-to-main { position: fixed; top: 0; left: 0; transform: translateY(-120%); z-index: 1000; background: white; padding: var(--space-3); }
.skip-to-main:focus { transform: none; }
.photo-card { min-width: 0; padding: var(--space-1); }
.photo-card:hover { background: white; }
.photo-thumbnail { padding: 0; aspect-ratio: 1; position: relative; }
.photo-caption { overflow-wrap: anywhere; }
.photo-select { min-height: 44px; display: flex; align-items: center; gap: var(--space-2); margin: 0; }
#preview-overlay { padding: 0; border: 0; min-width: 60px; min-height: 60px; max-width: 95vw; max-height: 95dvh; overflow: auto; background: var(--color-gray-900); color: white; }
#preview-overlay::backdrop { background: rgb(0 0 0 / 75%); }
#preview-close { position: absolute; top: var(--space-2); right: var(--space-2); z-index: 1; width: 44px; padding: 0; background: var(--color-gray-900); color: white; font-size: var(--text-2xl); }
#preview-status:not(.visually-hidden) { margin: 0; padding: 64px var(--space-4) var(--space-4); }
#preview-img, #preview-video { display: block; max-height: 95dvh; max-width: 95vw; object-fit: contain; }
#preview-img[hidden], #preview-video[hidden] { display: none; }

/* Photo choices keep filenames and controls stable while previews load. */
.photo-shell :is(.btn, .select, summary), #preview-overlay .btn { min-height: 44px; }
.photo-shell summary { padding-block: var(--space-3); cursor: pointer; }
.photo-shell :is(input, select, .row > *) { min-width: 0; max-width: 100%; }
/* The image fills the fixed-ratio box; portrait photos get side bars instead of a taller card. */
.photo-thumbnail img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.photo-image-status { position: absolute; inset: 0; display: grid; place-content: center; padding: var(--space-2); }
.photo-image-status[hidden] { display: none; }

/* Camera corrections and selection actions stay together above the gallery. */
.photo-pinned-controls {
    position: sticky;
    top: 0;
    z-index: 10;
    display: grid;
    gap: var(--space-2);
    padding-top: var(--space-2);
    background: var(--color-gray-100);
}
.photo-selection-actions {
    padding: var(--space-2) var(--space-3);
    background: white;
    border-bottom: 1px solid var(--color-gray-200);
}

.photo-source-context a { overflow-wrap: anywhere; }
.photo-offset-row { display: grid; align-items: center; margin: 0; }
.photo-offset-row > span { overflow-wrap: anywhere; }
.photo-offset-row .input { font-variant-numeric: tabular-nums; }
.photo-offset-row .input:disabled,
.photo-offset-row .input:disabled ~ span .photo-offset-camera { background: var(--color-gray-100); color: var(--color-gray-400); border-color: var(--color-gray-200); }
.photo-offset-row .input:disabled { cursor: not-allowed; }
.photo-shell .btn:disabled { background: var(--color-gray-100); color: var(--color-gray-400); border-color: var(--color-gray-200); cursor: not-allowed; }

.photo-grid .photo-card { display: flex; flex-direction: column; }
.photo-grid .photo-thumbnail { flex-shrink: 0; }
.photo-choice { flex: 1; user-select: none; display: flex; flex-direction: column; gap: var(--space-2); padding: var(--space-2); cursor: pointer; }
.photo-choice:hover { background: var(--color-gray-50); }
.photo-choice .photo-select { min-height: 36px; margin-top: auto; }

/* Skip offscreen card contents while retaining searchable, accessible DOM order. */
.photo-grid .photo-card { content-visibility: auto; contain-intrinsic-size: auto 400px; }

/* Compact live editor: settings above the gallery, one source/destination pair per photo. */
html:has(#organize-form) { overflow-anchor: none; }
#organize-form { gap: var(--space-3); }
#organize-form :is(.btn, .select) { min-height: 36px; }
#organize-form .btn { padding: var(--space-1) var(--space-3); }
#organize-form .photo-thumbnail { padding: 0; }
#organize-form :is(.input, .select) { height: 36px; padding-block: var(--space-1); }
.photo-settings { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }
.photo-settings .label { margin: 0; }
.photo-settings > .label:first-child { width: 100%; max-width: calc(6rem + var(--space-2) + 18rem); }
.photo-offsets { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-2) var(--space-3); max-height: 40dvh; overflow-y: auto; overflow-x: hidden; padding: var(--space-1); }
.photo-offset-row { grid-template-columns: 6rem 3rem 3rem minmax(0, 1fr); gap: var(--space-1) var(--space-2); align-content: start; }
.photo-offset-row > span:not([data-field-error]) { grid-column: 4; grid-row: 1; font-size: var(--text-sm); display: flex; align-items: center; gap: var(--space-1); min-width: 0; }
.photo-offset-row > input { grid-column: 1; grid-row: 1; }
.photo-offset-row [data-offset-step="-1"] { grid-column: 2; grid-row: 1; }
.photo-offset-row [data-offset-step="1"] { grid-column: 3; grid-row: 1; }
.photo-offset-row [data-field-error], .photo-location-row [data-field-error] { grid-column: 1 / -1; grid-row: auto; color: var(--color-red-800); }
.photo-location-row { width: calc((100% - var(--space-3)) / 2); max-width: calc(6rem + var(--space-2) + 18rem); display: grid; grid-template-columns: 6rem minmax(0, 1fr); gap: var(--space-2); align-items: center; }
.photo-location-offset { padding-inline: var(--space-3); font-variant-numeric: tabular-nums; }
.photo-location-row .label { margin: 0; }
.photo-timezone { position: relative; min-width: 0; width: 100%; max-width: 18rem; }
.photo-timezone-popup { position: absolute; top: 100%; left: 0; right: 0; z-index: 20; background: white; border: 1px solid var(--color-gray-300); box-shadow: 0 2px 4px rgb(0 0 0 / 0.1); }
.photo-timezone-popup [role="listbox"] { max-height: 16rem; overflow-y: auto; overscroll-behavior: contain; }
.photo-timezone-popup [role="option"], .photo-timezone-popup p { padding: var(--space-2) var(--space-3); margin: 0; overflow-wrap: anywhere; }
.photo-timezone-popup [role="option"] { cursor: pointer; }
.photo-timezone-popup [aria-selected="true"] { font-weight: 700; }
.photo-timezone-popup [role="option"]:hover, .photo-timezone-active { background: var(--color-primary-light); color: var(--color-primary-dark); }
#move-selection { margin-left: auto; }
.photo-selection-actions { gap: var(--space-2); }
.photo-live-card { position: relative; align-self: start; }
.photo-camera { margin: 0; padding: var(--space-1) var(--space-2) var(--space-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--color-gray-600); }

/* Keep the native selection control operable without painting a checkbox over the photo. */
.photo-live-card .photo-choice { position: absolute; top: var(--space-2); left: var(--space-2); z-index: 1; flex: none; padding: 0; opacity: 0; }
.photo-live-card .photo-choice .photo-select { min-height: 32px; width: 32px; justify-content: center; }
.photo-paths { display: grid; gap: var(--space-1); padding: var(--space-2); }
.photo-paths p { margin: 0; }
.photo-old-path { color: var(--color-gray-600); }
.photo-new-path { color: var(--color-blue-800); }
.photo-paths [data-proposal-status] { color: var(--color-red-800); }
@media (max-width: 1023px) {
    .photo-offsets { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 639px) {
    .photo-pinned-controls { position: static; }
    .photo-offsets { max-height: none; overflow: visible; }
    .photo-settings { grid-template-columns: minmax(0, 1fr); }
    .photo-settings > .label:first-child { max-width: none; }
    .photo-offset-row { grid-template-columns: 5.5rem 3rem 3rem minmax(0, 1fr); gap: var(--space-1); }
    .photo-offset-row > span:not([data-field-error]) { grid-column: 1 / -1; grid-row: 2; }
    #organize-form .photo-offset-row .input { padding-inline: var(--space-1); font-size: var(--text-sm); }
    .photo-location-row { width: 100%; max-width: none; grid-template-columns: 5.5rem minmax(0, 1fr); }
    .photo-timezone { max-width: none; }
    #organize-form .photo-offset-row .btn { padding-inline: var(--space-1); font-size: var(--text-sm); }
    #selection-status { order: 1; width: 100%; font-size: var(--text-sm); }
}
.photo-paths { line-height: var(--lh-sm); }
.photo-old-path { cursor: pointer; }
#organize-form .photo-grid { grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); }
@media (max-width: 639px) {
    #organize-form .photo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    #organize-form .photo-selection-actions { display: grid; grid-template-columns: auto minmax(0, 1fr); }
    #organize-form .photo-selection-actions > .btn { justify-self: start; }
    #organize-form #selection-status { order: 0; width: auto; grid-column: 1 / -1; }
    #organize-form #missing-dates-link { grid-column: 1 / -1; }
    #organize-form #move-selection { grid-column: 1; justify-self: end; }
    #organize-form #delete-selection { grid-column: 2; }
}
#organize-form .photo-thumbnail { aspect-ratio: 3 / 2; }

/* Folder selection and navigation have separate, aligned touch targets. */
.photo-folder-row { gap: var(--space-2); padding-block: var(--space-1); }
.photo-folder-toggle { display: flex; align-items: center; justify-content: center; flex: 0 0 44px; min-height: 44px; margin: 0; cursor: pointer; }
.photo-folder-row > a { display: flex; align-items: center; min-height: 44px; flex: 1; }
.photo-folder-row:has(input:checked) { background: var(--color-primary-light); }
#missing-dates { scroll-margin-top: 10rem; }
#missing-dates-link { display: inline-flex; align-items: center; min-height: 36px; }
#missing-dates-link[hidden] { display: none; }

.photo-shell > :is(h1, p) { margin: 0; overflow-wrap: anywhere; }

/* The job message already explains busy state; duplicate readiness text hides it on phones. */
.photo-status-area:has(#job-progress) #backend-status { display: none; }

.photo-grid.photo-measure-grid .photo-card { content-visibility: visible; }

.photo-live-card:has(.file-checkbox) { cursor: pointer; user-select: none; -webkit-user-select: none; }
.photo-preview-open { position: absolute; top: var(--space-2); right: var(--space-2); z-index: 1; }
.photo-live-card > div.photo-thumbnail { background: var(--color-gray-50); }

/* Keep browser controls at the same height at root and at every folder depth. */
.photo-page .photo-browser-crumbs {
    height: 44px;
    box-sizing: border-box;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
}
.photo-page .photo-browser-crumbs > * { flex-shrink: 0; max-width: none; }
.photo-browser-crumbs a { display: inline-flex; align-items: center; min-height: 28px; }

.photo-live-card:has(.file-checkbox:focus-visible) { box-shadow: 0 0 0 4px var(--color-gray-700); }

.photo-grid .photo-card[hidden] { display: none; }
.photo-inspection-errors { overflow-wrap: anywhere; }
.photo-inspection-errors :is(h2, p), #operation-banner :is(h2, p) { margin: 0; }
#operation-banner { overflow-wrap: anywhere; }
#organize-form .photo-offset-row [data-camera-toggle],
#organize-form .photo-offset-row [data-camera-select] { width: 3.25rem; flex-shrink: 0; padding-inline: var(--space-1); text-align: center; white-space: nowrap; }

/* Full-width Photos layout; reserve only the desktop minimap gutter. */
.photo-shell.page-container { width: 100%; max-width: none; margin-inline: 0; }
.photo-live-card .photo-camera { margin-bottom: var(--space-1); background: var(--camera-color, var(--color-gray-500)); color: var(--camera-text-color, white); }
.photo-minimap { display: none; }
@media (min-width: 1100px) {
    /* The minimap measures every card; keep those heights stable between measurements. */
    #organize-form .photo-card { content-visibility: visible; }
    .photo-minimap:not([hidden]) { display: block; position: fixed; right: var(--space-3); top: var(--minimap-top, 16px); z-index: 5; background: white; padding: var(--space-1); border: 1px solid var(--color-gray-300); }
    .photo-minimap-track { position: relative; cursor: pointer; touch-action: none; }
    .photo-minimap-track:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
    .photo-minimap-tiles { display: grid; gap: 1px; pointer-events: none; }
    .photo-minimap-viewport { position: absolute; left: -2px; right: -2px; border: 2px solid var(--color-danger); z-index: 2; pointer-events: none; }
    .photo-shell:has(#organize-form) { padding-right: 100px; }
}

.photo-offset-camera { display: inline-block; padding: var(--space-1) var(--space-2); background: var(--camera-color, var(--color-gray-500)); color: var(--camera-text-color, white); vertical-align: middle; }
.photo-minimap-viewport::before { content: ''; position: absolute; top: 50%; left: -13px; transform: translateY(-50%); border-block: 7px solid transparent; border-left: 8px solid var(--color-gray-900); filter: drop-shadow(0 0 1px white); }