/* ============================================================
   PrepNinza — content.css
   Article page styles: layout, typography, sidebar, ads, media
   ============================================================ */

/* ── Base article wrapper ─────────────────────────────────── */
.article { padding: 40px 0 80px; }

/* ── Breadcrumb ───────────────────────────────────────────── */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #617579;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.breadcrumb a { color: #2e7169; font-weight: 700; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { color: #9ab0ac; }

/* ── Article Header ───────────────────────────────────────── */
.article-header {
    width: min(860px, calc(100% - 32px));
    margin: 0 auto 32px;
}

.article-meta-pills {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}
.exam-pill   { background: #dce8ff; color: #2a4ab0; }
.subject-pill{ background: #dcefec; color: #1a6356; }
.read-time-pill {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 99px;
    background: #f4f7f6;
    color: #617579;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .3px;
}

.article-header h1 {
    font-size: clamp(30px, 5vw, 52px);
    line-height: 1.12;
    letter-spacing: -1.4px;
    margin: 14px 0 16px;
    color: #14333a;
}

.article-excerpt {
    font-size: 18px;
    color: #617579;
    line-height: 1.6;
    margin-bottom: 20px;
}

/* Byline */
.article-byline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 0;
    border-top: 1px solid #d7e2df;
    border-bottom: 1px solid #d7e2df;
}
.byline-author {
    display: flex;
    align-items: center;
    gap: 10px;
}
.author-avatar {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2e7169, #9bc8bb);
    color: #fff;
    font-size: 15px;
    font-weight: 900;
    flex-shrink: 0;
}
.byline-author strong { display: block; font-size: 14px; color: #14333a; }
.byline-author small  { display: block; font-size: 12px; color: #8ca09d; margin-top: 2px; }
.byline-date          { font-size: 12px; color: #8ca09d; }

/* ── Two-column layout ────────────────────────────────────── */
.article-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
    align-items: start;
}
@media (min-width: 960px) {
    .article-layout { grid-template-columns: 1fr 280px; }
}

/* ── Article Body / Typography ────────────────────────────── */
.article-body {
    color: #28474c;
    font-size: 17px;
    line-height: 1.8;
}
.article-body h2 {
    margin: 44px 0 14px;
    font-size: clamp(22px, 3vw, 28px);
    line-height: 1.22;
    color: #14333a;
    padding-bottom: 10px;
    border-bottom: 2px solid #d7e2df;
}
.article-body h3 {
    margin: 28px 0 10px;
    font-size: clamp(18px, 2.5vw, 22px);
    color: #14333a;
}
.article-body h4 {
    margin: 20px 0 8px;
    font-size: 17px;
    color: #2e7169;
}
.article-body p  { margin: 0 0 14px; }
.article-body ul, .article-body ol { padding-left: 22px; margin-bottom: 16px; }
.article-body li { margin-bottom: 6px; }
.article-body a  { color: #2e7169; text-decoration: underline; font-weight: 700; }
.article-body a:hover { color: #14333a; }
.article-body strong { color: #14333a; }

/* Blockquotes */
.article-body blockquote {
    margin: 24px 0;
    padding: 16px 20px;
    border-left: 4px solid #2e7169;
    background: #f1f7f5;
    border-radius: 0 10px 10px 0;
    font-style: italic;
    color: #3a5c60;
}
.article-body blockquote p { margin: 0; }

/* Tables */
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 15px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 12px #14333a12;
}
.article-body th {
    background: #14333a;
    color: #fff;
    padding: 12px 14px;
    text-align: left;
    font-size: 13px;
    letter-spacing: .3px;
}
.article-body td {
    padding: 11px 14px;
    border-bottom: 1px solid #e4ecea;
    vertical-align: top;
}
.article-body tr:nth-child(even) td { background: #f8fcfb; }
.article-body tr:last-child td { border-bottom: none; }

/* Code */
.article-body code {
    background: #edf5f2;
    padding: 2px 6px;
    border-radius: 5px;
    font-size: 14px;
    color: #2e7169;
}
.article-body pre {
    background: #14333a;
    color: #c6e8df;
    padding: 18px 20px;
    border-radius: 12px;
    overflow-x: auto;
    font-size: 14px;
    margin: 20px 0;
}
.article-body pre code { background: none; color: inherit; padding: 0; }

/* Images — responsive, styled, lazy */
.article-body img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 14px;
    margin: 28px auto;
    box-shadow: 0 8px 30px #14333a1a;
    border: 1px solid #d7e2df;
    loading: lazy;
}

/* ── Tags ─────────────────────────────────────────────────── */
.article-tags {
    margin: 32px 0 0;
    padding: 20px;
    border: 1px solid #d7e2df;
    border-radius: 14px;
    background: #f8fcfb;
}
.article-tags strong { display: block; margin-bottom: 12px; font-size: 13px; color: #617579; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.exam-tag {
    padding: 6px 12px;
    border-radius: 99px;
    background: #14333a;
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    transition: background .2s;
}
.exam-tag:hover { background: #2e7169; }

/* ── Official Source ──────────────────────────────────────── */
.article-source {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin: 24px 0;
    padding: 18px 20px;
    border: 1px solid #d7e2df;
    border-radius: 14px;
    background: #f1f7f5;
}
.source-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.article-source strong { display: block; font-size: 14px; color: #14333a; margin-bottom: 4px; }
.article-source a { color: #2e7169; font-weight: 800; font-size: 14px; }
.article-source a:hover { text-decoration: underline; }

/* ── Disclaimer ───────────────────────────────────────────── */
.article-disclaimer {
    font-size: 13px;
    color: #8ca09d;
    padding: 14px 18px;
    border: 1px dashed #c7d8d4;
    border-radius: 10px;
    margin: 24px 0;
    line-height: 1.5;
}

/* ── Nav Footer ───────────────────────────────────────────── */
.article-nav-footer {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 20px 0 0;
    border-top: 1px solid #d7e2df;
    margin-top: 32px;
}
.nav-btn {
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 800;
    border: 1px solid #d7e2df;
    background: #f8fcfb;
    color: #2e7169;
    transition: all .2s;
}
.nav-btn:hover { background: #2e7169; color: #fff; border-color: #2e7169; }

/* ── Ad Slots ─────────────────────────────────────────────── */
.ad-wrap { margin: 0 auto 32px; }

.ad-slot {
    position: relative;
    text-align: center;
    border: 1px dashed #c7d8d4;
    border-radius: 12px;
    background: #f9fcfb;
    overflow: hidden;
}
.ad-slot--leaderboard  { min-height: 90px;  margin: 0 auto 32px; max-width: 728px; }
.ad-slot--in-article   { min-height: 250px; margin: 32px 0; }
.ad-slot--display      { min-height: 280px; margin: 32px 0; }
.ad-slot--sidebar      { min-height: 250px; margin: 16px 0; }

.ad-label {
    display: block;
    padding: 8px;
    font-size: 10px;
    color: #b0c4c0;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 700;
}

/* ── Sidebar ──────────────────────────────────────────────── */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
@media (min-width: 960px) {
    .article-sidebar { position: sticky; top: 90px; }
}

.sidebar-card {
    padding: 20px;
    border: 1px solid #d7e2df;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 2px 10px #14333a0a;
}
.sidebar-card__title {
    font-size: 14px;
    font-weight: 900;
    color: #14333a;
    margin: 0 0 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid #edf2f0;
}

/* Revision card */
.revision-card { background: linear-gradient(135deg, #f0f8f5, #e8f5f0); border-color: #b8dccf; }
.revision-checklist { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.revision-checklist li { font-size: 13px; color: #2e5d55; font-weight: 700; }

/* Sidebar exam links */
.sidebar-exam-links { display: flex; flex-direction: column; gap: 6px; }
.sidebar-exam-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 12px;
    border-radius: 10px;
    border: 1px solid #e4ecea;
    font-size: 13px;
    color: #14333a;
    font-weight: 700;
    transition: all .2s;
}
.sidebar-exam-link:hover { background: #f0f8f5; border-color: #2e7169; color: #2e7169; }
.sidebar-exam-link span { color: #2e7169; font-size: 16px; }

/* ── Pagination (kept from old) ───────────────────────────── */
.pagination { margin-top: 28px; }
.site-pagination { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; padding: 15px 17px; border: 1px solid #d7e2df; border-radius: 14px; background: #f1f7f5; }
.pagination-summary { margin: 0; color: #617579; font-size: 13px; font-weight: 750; }
.pagination-links { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.pagination-control, .pagination-page, .pagination-ellipsis { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; padding: 8px 11px; border: 1px solid #c7d8d4; border-radius: 9px; background: #fff; color: #2e7169; font-size: 13px; font-weight: 850; text-decoration: none; }
.pagination-control:hover, .pagination-page:hover { border-color: #2e7169; background: #dcefe9; }
.pagination-page { min-width: 38px; padding-inline: 8px; }
.pagination-page.is-current { border-color: #14333a; background: #14333a; color: #fff; }
.pagination-control.is-disabled { color: #8ca09d; background: #f6f9f8; border-color: #e1eae7; }
.pagination-ellipsis { border-color: transparent; background: transparent; color: #617579; padding-inline: 3px; }

/* ── Legal pages ──────────────────────────────────────────── */
.legal-copy { width: min(780px, calc(100% - 32px)); margin: auto; padding-top: 52px; padding-bottom: 72px; }
.legal-copy h2:first-child { margin-top: 0; }

/* ── Empty state ──────────────────────────────────────────── */
.empty-state { max-width: 620px; }

@media (max-width: 560px) {
    .site-pagination { align-items: flex-start; flex-direction: column; }
    .pagination-links { width: 100%; }
    .pagination-control { flex: 1; }
    .pagination-page, .pagination-ellipsis { display: none; }
    .pagination-page.is-current { display: inline-flex; }
    .article-nav-footer { flex-direction: column; }
    .nav-btn { justify-content: center; }
}