/* ============================================================
   MIPB — Purine Table & Comparison Tool
   Stylesheet for [purine_table] and [compare_purines]
   Theme: Deep Purple — nucleobase chemistry
   ============================================================ */

/* ── Header grid ───────────────────────────────────────────── */
.mipuri-header-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 0 auto 2rem;
    max-width: 1040px;
    align-items: start;
}
@media (max-width: 720px) {
    .mipuri-header-grid { grid-template-columns: 1fr; }
}

/* ── Top-10 SEO block ────────────────────────────────────────── */
.mipuri-top10 { margin-bottom: 0; }
.mipuri-top10 h2 { font-size: 1.25rem; margin-bottom: .5rem; color: #4527a0; }
.mipuri-top10-list { margin: 0; padding-left: 1.4rem; }
.mipuri-top10-list li { margin-bottom: .3rem; line-height: 1.5; }

/* ── Insight box ─────────────────────────────────────────────── */
.mipuri-insight-box {
    background: #ede7f6;
    border: 1px solid #9575cd;
    border-left: 4px solid #4527a0;
    border-radius: 6px;
    padding: .85rem 1rem;
    margin-bottom: .9rem;
}
.mipuri-insight-title {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: #4527a0;
    margin: 0 0 .55rem;
}
.mipuri-insight-list {
    margin: 0;
    padding-left: 1.1rem;
    font-size: .88rem;
    color: #333;
}
.mipuri-insight-list li { margin-bottom: .28rem; line-height: 1.5; }

/* ── Context card ─────────────────────────────────────────────── */
.mipuri-context-card {
    background: #d1c4e9;
    border: 1px solid #b39ddb;
    border-left: 4px solid #673ab7;
    border-radius: 6px;
    padding: .75rem 1rem;
    font-size: .87rem;
    color: #333;
    line-height: 1.55;
}
.mipuri-context-label {
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: #4527a0;
    margin: 0 0 .3rem;
}
.mipuri-context-card p { margin: 0; }
.mipuri-context-card a { color: #4527a0; }

/* ── Controls row ────────────────────────────────────────────── */
.mipuri-controls {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: .9rem;
    align-items: center;
}
.mipuri-search, .mipuri-select {
    padding: .45rem .65rem;
    border: 1px solid #9575cd;
    border-radius: 6px;
    font-size: .92rem;
    outline: none;
}
.mipuri-search:focus, .mipuri-select:focus {
    border-color: #4527a0;
    box-shadow: 0 0 0 2px rgba(69,39,160,.15);
}
.mipuri-btn {
    padding: .45rem .85rem;
    background: #4527a0;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: .88rem;
    cursor: pointer;
    transition: background .15s;
}
.mipuri-btn:hover { background: #311b92; }

/* ── Table ───────────────────────────────────────────────────── */
.mipuri-table-wrap {
    overflow-x: auto;
    margin-bottom: .75rem;
}
.mipuri-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}
.mipuri-table thead th {
    padding: .5rem .65rem;
    background: #4527a0;
    color: #fff;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
    position: sticky;
    top: var(--mipb-sticky-top);
    z-index: 2;
}
.mipuri-table thead th.col-rank { text-align: center; width: 3rem; }
.mipuri-table thead th.col-val  { text-align: right; }
.mipuri-table thead th.col-bar  { width: 120px; }
.mipuri-table tbody tr { border-bottom: 1px solid #f0eef9; }
.mipuri-table tbody tr:hover { background: #f5f3ff; }
.mipuri-table tbody td {
    padding: .4rem .65rem;
    vertical-align: middle;
}
.mipuri-table td.col-rank { text-align: center; color: #777; font-size: .82rem; }
.mipuri-table td.col-val  { text-align: right; font-weight: 600; color: #4527a0; font-variant-numeric: tabular-nums; }
.mipuri-table td.col-cat  { color: #666; font-size: .84rem; }

/* Breakdown sub-row */
.mipuri-breakdown-row td { padding: .1rem .65rem .35rem; border-bottom: 1px solid #f0eef9; }
.mipuri-breakdown {
    font-size: .78rem;
    color: #888;
    font-style: italic;
}

/* Bar */
.mipuri-bar {
    height: 8px;
    background: linear-gradient(90deg, #7c4dff, #4527a0);
    border-radius: 4px;
    min-width: 2px;
    transition: width .3s;
}

/* ── Loading / empty states ──────────────────────────────────── */
.mipuri-loading, .mipuri-empty {
    text-align: center;
    color: #888;
    padding: 1.2rem;
    font-size: .9rem;
}

/* ── Pagination ──────────────────────────────────────────────── */
.mipuri-pagination {
    display: flex;
    gap: .5rem;
    align-items: center;
    margin-top: .6rem;
}
.mipuri-page-btn {
    padding: .35rem .7rem;
    border: 1px solid #9575cd;
    border-radius: 5px;
    background: #fff;
    color: #4527a0;
    cursor: pointer;
    font-size: .85rem;
}
.mipuri-page-btn:hover { background: #ede7f6; }
.mipuri-page-info { font-size: .85rem; color: #555; }

/* ── Attribution ─────────────────────────────────────────────── */
.mipuri-attribution {
    font-size: .78rem;
    color: #999;
    margin-top: .5rem;
    line-height: 1.4;
}

/* ── FAQ section ─────────────────────────────────────────────── */
.mipuri-faq {
    margin: 2.5rem auto 0;
    max-width: 820px;
}
.mipuri-faq h2 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    color: #4527a0;
    text-align: center;
}
.mipuri-faq details {
    border: 1px solid #d1c4e9;
    border-radius: 6px;
    margin-bottom: .55rem;
    background: #faf9fe;
}
.mipuri-faq details summary {
    padding: .7rem .95rem;
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
    list-style: none;
    color: #311b92;
}
.mipuri-faq details summary::-webkit-details-marker { display: none; }
.mipuri-faq details summary::before {
    content: '+ ';
    color: #9575cd;
    font-weight: 700;
}
.mipuri-faq details[open] summary::before { content: '− '; }
.mipuri-faq details p {
    margin: 0;
    padding: .5rem .95rem .8rem;
    font-size: .9rem;
    line-height: 1.7;
    color: #444;
    border-top: 1px solid #ede7f6;
}

/* ── Comparison tool ─────────────────────────────────────────── */
.mpuric-wrap { max-width: 940px; margin: 0 auto; }
.mpuric-picker-area { margin-bottom: 1rem; }
.mpuric-search-row  { margin-bottom: .5rem; }
.mpuric-search {
    width: 100%;
    max-width: 460px;
    padding: .5rem .75rem;
    border: 1px solid #9575cd;
    border-radius: 6px;
    font-size: .95rem;
    outline: none;
    box-sizing: border-box;
}
.mpuric-search:focus {
    border-color: #4527a0;
    box-shadow: 0 0 0 2px rgba(69,39,160,.15);
}
.mpuric-suggestions {
    list-style: none;
    margin: .2rem 0 0;
    padding: 0;
    max-width: 460px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,.1);
    max-height: 260px;
    overflow-y: auto;
    z-index: 200;
    position: relative;
}
.mpuric-sug-item {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .75rem;
    cursor: pointer;
    border-bottom: 1px solid #f5f5f5;
    font-size: .88rem;
}
.mpuric-sug-item:hover { background: #f5f3ff; }
.mpuric-sug-item .sug-name { flex: 1; font-weight: 500; }
.mpuric-sug-item .sug-cat  { color: #888; font-size: .82rem; }
.mpuric-sug-item .sug-val  { color: #4527a0; font-weight: 600; font-size: .85rem; white-space: nowrap; }
.mpuric-chips { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .5rem; }
.mpuric-chip {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .25rem .6rem;
    background: #ede7f6;
    border: 1px solid #b39ddb;
    border-radius: 20px;
    font-size: .84rem;
    color: #311b92;
}
.mpuric-chip-x {
    background: none;
    border: none;
    color: #9575cd;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0;
}
.mpuric-chip-x:hover { color: #4527a0; }

/* Comparison table */
.mpuric-table-wrap { overflow-x: auto; margin-top: .75rem; }
.mpuric-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .88rem;
}
.mpuric-table thead th {
    padding: .45rem .6rem;
    background: #4527a0;
    color: #fff;
    text-align: right;
    font-weight: 600;
    font-size: .82rem;
    white-space: nowrap;
    position: sticky;
    top: 0;
}
.mpuric-table thead th.col-food { text-align: left; }
.mpuric-table thead th.col-cat  { text-align: left; }
.mpuric-table thead th.col-total { color: #ffd54f; }
.mpuric-table thead th.col-bar  { width: 80px; }
.mpuric-table tbody tr { border-bottom: 1px solid #f0eef9; }
.mpuric-table tbody tr:hover { background: #f5f3ff; }
.mpuric-table tbody td { padding: .4rem .6rem; vertical-align: middle; text-align: right; }
.mpuric-table td.col-food { text-align: left; font-weight: 500; }
.mpuric-table td.col-cat  { text-align: left; color: #888; font-size: .82rem; }
.mpuric-table td.col-total { font-weight: 700; color: #4527a0; }
.mpuric-bar {
    height: 7px;
    background: linear-gradient(90deg, #7c4dff, #4527a0);
    border-radius: 4px;
    min-width: 2px;
    transition: width .3s;
}
.mpuric-legend, .mpuric-attribution {
    font-size: .8rem;
    color: #888;
    margin-top: .5rem;
    line-height: 1.4;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 600px) {
    .mipuri-header-grid  { grid-template-columns: 1fr; }
    .mpuric-table thead th.col-cat,
    .mpuric-table td.col-cat  { display: none; }
}