:root {
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --and-color: #16a34a;
    --or-color: #2563eb;
    --no-color: #dc2626;
    --text: #18181b;
    --text-muted: #6b7280;
    --border: #e4e4e7;
    --card-bg: #ffffff;
    --page-bg: #f4f4f5;
}

html, body {
    margin: 0;
    padding: 0;
}

body.modal-open {
    overflow-y: hidden;
}

/* Filter / search panel */

.tags_selector {
    width: 100% !important;
    padding: 20px;
    display: flex;
    flex-wrap: wrap;
    box-sizing: border-box;
    flex-direction: column;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 20px;
}

.tag_selector {
    flex: 1;
    min-width: 200px;
    margin-left: 0px;
    margin-right: 0px;
    padding: 5px;
    text-align: center;
    box-sizing: border-box;
    margin-bottom: 15px;
}

/* Match Bootstrap's md breakpoint (the AND/OR/NO columns use col-12
   col-md-4 in home.html): below it they stack full-width via Bootstrap's
   own col-12, above it this forces the 3-across 30% layout. This used to
   be a bare "width: 30% !important" with no breakpoint, which overrode
   col-12 and forced the 3-column squeeze on phones too. */
@media (min-width: 768px) {
    .tag_selector {
        width: 30% !important;
    }
}

.filter-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.filter-label::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

.filter-label--and {
    color: var(--and-color);
}

.filter-label--or {
    color: var(--or-color);
}

.filter-label--no {
    color: var(--no-color);
}

.search {
    width: 100%;
    padding: 5px;
}

.search input {
    margin-top: 15px;
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    box-sizing: border-box;
}

.search input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.search-submit {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    border-radius: 8px;
    padding: 8px 28px;
    font-weight: 500;
}

.search-submit:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
}

.select2 {
    width: 100% !important;
    min-width: 10px;
}

option {
    border: solid 1px;
    border-bottom: none;
    font-size: 12pt;
    border-color: black;
}

/* Results count */

.results-count {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 4px 0 16px;
}

.results-count strong {
    color: var(--text);
    font-weight: 600;
}

.saved-count-badge {
    display: inline-block;
    min-width: 18px;
    padding: 1px 6px;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    text-align: center;
}

.empty-state {
    color: var(--text-muted);
    text-align: center;
    padding: 40px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
}

/* Pagination */

.pagination {
    align-content: center;
    overflow: auto;
}

.pagination .page-link {
    border-radius: 999px !important;
    margin: 0 3px;
    border: 1px solid var(--border);
    color: var(--text);
}

.pagination .page-link:hover {
    background: var(--page-bg);
}

.pagination .page-item.active .page-link {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* Problem card */

.problem {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    width: 100%;
    box-sizing: border-box;
    overflow: auto;
    padding: 20px;
    margin-bottom: 16px;
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.problem:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.problem-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.problem-actions {
    display: flex;
    flex-shrink: 0;
    gap: 6px;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--card-bg);
    color: var(--text-muted);
    text-decoration: none;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.icon-btn:hover {
    background: var(--page-bg);
    color: var(--text);
    border-color: var(--text-muted);
}

.save-form {
    /* Keep the button a direct flex item of .problem-actions instead of the
       <form> itself (a block-level element) becoming one. */
    display: contents;
}

/* The save button's SVG sets its own fill="currentColor"/"none" in the
   template to distinguish saved vs. not-saved. The blanket "svg path {
   fill: currentcolor }" rule below would stomp that, so let this one path
   inherit from its own <svg>'s fill attribute instead. */
.save-btn svg path {
    fill: inherit;
}

.save-btn--active {
    color: var(--accent);
    border-color: var(--accent);
}

.save-btn--active:hover {
    color: var(--accent-dark);
    border-color: var(--accent-dark);
}

.copy_button {
    text-align: center;
}

.statement-hidden {
    visibility: hidden;
}

.problem-title-link {
    text-decoration: none;
    display: block;
    flex: 1;
    min-width: 0;
}

.problem-title-link:hover .problem-source {
    color: var(--accent);
}

.problem-source {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
}

div.statement, .problem-source {
    overflow-wrap: break-word;
    word-break: break-word;
}

.problem-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 10px 0;
}

.tag-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: 999px;
    text-decoration: none;
    transition: background 0.15s ease, color 0.15s ease;
}

.tag-badge--aops {
    background: #eef2ff;
    color: #4338ca;
}

.tag-badge--aops:hover {
    background: #e0e7ff;
    color: #3730a3;
}

.tag-badge--ai {
    background: #fee2e2;
    color: #b91c1c;
}

.tag-badge--ai:hover {
    background: #fecaca;
    color: #991b1b;
}

.edit-link {
    display: inline-block;
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-decoration: none;
}

.edit-link:hover {
    color: var(--accent);
    text-decoration: underline;
}

#id_number {
    width: 50%;
}

div.statement {
    margin: 10px 0;
    color: var(--text);
    line-height: 1.6;
    font-size: 0.95rem;
}

svg path {
    fill: currentcolor;
}

svg#icon-help {
    color: white;
}

#help {
    z-index: 101;
    position: absolute;
    height: 90%;
    width: 90%;
    padding: 1em;
    box-sizing: border-box;
    color: black;
    backdrop-filter: blur(25px);
    border-radius: 1.5rem;
}

#helpdiv {
    width: 100%;
    height: 100%;
    padding: 1rem;
}

.selected-tags {
    margin: 20px 0;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 5px;
}

.selected-tags h4 {
    margin-bottom: 10px;
    color: #495057;
}

.selected-tags div {
    margin: 5px 0;
    color: #6c757d;
}

/* Select2 customization */
.select2-container--default .select2-selection--multiple {
    border: 1px solid var(--border);
    border-radius: 8px;
}

.select2-container--default.select2-container--focus .select2-selection--multiple {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.select2-container--default .select2-selection--multiple .select2-selection__choice {
    background-color: var(--accent);
    border: none;
    border-radius: 999px;
    color: white;
    padding: 2px 10px;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice__remove {
    color: white;
    margin-right: 5px;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice__remove:hover {
    color: #f8f9fa;
    background-color: var(--accent-dark);
}

@media (max-width: 600px) {
    .problem {
        padding: 14px;
    }

    .icon-btn {
        width: 34px;
        height: 34px;
    }
}