/*
 * Front-end site stylesheet — plain, dependency-free CSS (no build step,
 * no framework). Functional first-version styling: semantic, readable,
 * mobile-first, and responsive via flexbox/grid only.
 */

:root {
  color-scheme: light dark;
  --max-width: 1080px;
  --gap: 1.25rem;
  --border-color: #ddd;
  --muted: #666;
  --link: #0b5fa5;
  --bg: #fff;
  --fg: #1a1a1a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --border-color: #333;
    --muted: #aaa;
    --link: #6cb2f2;
    --bg: #121212;
    --fg: #eee;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
}

a {
  color: var(--link);
}

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

.sr-only,
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Header ---- */
.site-header {
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
}

.site-header__bar {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-header__brand {
  font-size: 1.4rem;
  font-weight: 700;
  text-decoration: none;
  color: inherit;
}

.site-header__search {
  display: flex;
  gap: 0.5rem;
}

.site-header__search input[type="search"] {
  padding: 0.35rem 0.5rem;
}

.site-nav {
  max-width: var(--max-width);
  margin: 0.5rem auto 0;
}

.site-nav__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.site-nav__item {
  position: relative;
}

.site-nav__item > a {
  text-decoration: none;
  font-weight: 600;
}

.site-nav__sublist {
  list-style: none;
  margin: 0.25rem 0 0 0.75rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
}

/* ---- Layout ---- */
.site-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}

.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 1rem;
  margin-top: 2rem;
}

.site-footer__links {
  max-width: var(--max-width);
  margin: 0 auto 1rem;
}

.site-footer__links ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.site-footer__copyright {
  max-width: var(--max-width);
  margin: 1rem auto 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.ad-slot {
  max-width: var(--max-width);
  margin: 1rem auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(128, 128, 128, 0.08);
  border: 1px dashed var(--border-color);
}

/* ---- Card grid (home / category / author / search) ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--gap);
  margin: 1.5rem 0;
}

.card {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card__media img {
  width: 100%;
  aspect-ratio: auto;
}

.card__title,
.hero__title {
  margin: 0.6rem 0.75rem 0.25rem;
  font-size: 1.05rem;
}

.card__title a,
.hero__title a {
  text-decoration: none;
  color: inherit;
}

.card__excerpt,
.hero__excerpt {
  margin: 0 0.75rem 0.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.card__date {
  margin: 0 0.75rem 0.75rem;
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---- Hero ---- */
.hero {
  margin-bottom: 1.5rem;
}

.hero__title {
  font-size: 1.8rem;
  margin-left: 0;
  margin-right: 0;
}

.hero__excerpt {
  margin-left: 0;
  margin-right: 0;
  font-size: 1.05rem;
}

/* ---- Pagination ---- */
.pagination {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
}

.pagination__status {
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---- Article ---- */
.article__eyebrow {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  font-weight: 700;
}

.article__eyebrow a {
  text-decoration: none;
}

.article__headline {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

.article__subheadline {
  font-size: 1.2rem;
  color: var(--muted);
  margin-top: 0;
}

.article__byline {
  color: var(--muted);
  font-size: 0.9rem;
}

.article__figure {
  margin: 1.25rem 0;
}

.article__figure figcaption {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

.article__figure-credit {
  margin-left: 0.5rem;
  font-style: italic;
}

.article__body {
  font-size: 1.08rem;
  max-width: 72ch;
}

.article__body img {
  margin: 1rem 0;
}

.article__author-box {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.corrections-box {
  margin: 1.5rem 0;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-left: 4px solid #b45309;
  background: rgba(180, 83, 9, 0.08);
}

.corrections-box__title {
  margin-top: 0;
  font-size: 1rem;
}

.corrections-box__list {
  margin: 0;
  padding-left: 1.1rem;
}

/* ---- Author bio ---- */
.author-bio__social a {
  margin-right: 0.75rem;
}

/* ---- Search ---- */
.search-form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.search-form input[type="search"] {
  flex: 1;
  padding: 0.4rem 0.6rem;
}

/* ---- Static / category description ---- */
.static-page__body {
  max-width: 72ch;
}

.category-description {
  color: var(--muted);
  margin-top: -0.5rem;
}