/* ==========================================================================
   CarMotion Daily — style.css v2
   Top Gear-inspired: dark hero, red accent, black/white body, mobile-first
   ========================================================================== */

:root {
  --bg:          #ffffff;
  --bg-dark:     #0a0a0a;
  --bg-card:    #ffffff;
  --text:       #1a1a1a;
  --text-mute:  #6b6b6b;
  --accent:     #d5001c;        /* Top Gear red */
  --accent-dark:#a80016;
  --accent-light: #ff2540;
  --border:     #e5e5e5;
  --border-soft:#f0f0f0;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg:0 6px 18px rgba(0,0,0,0.12);
  --font-h: "Fira Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-b: "Fira Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-b);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { font-family: var(--font-h); font-weight: 800; line-height: 1.2; }

/* ---------- Header ---------- */
.site-header {
  background: var(--bg-dark);
  color: #fff;
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.logo {
  font-family: var(--font-h);
  font-weight: 900;
  font-size: 20px;
  color: #fff;
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.logo .accent { color: var(--accent); }
.logo:hover { text-decoration: none; }

.nav-menu {
  display: none;          /* mobile: hidden by default, toggle below */
  gap: 24px;
  align-items: center;
}
.nav-item {
  position: relative;
  color: #ddd;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 0;
}
.nav-item:hover { color: #fff; text-decoration: none; }
.nav-item .dropdown {
  position: absolute;
  top: 100%; left: 0;
  background: #fff;
  min-width: 180px;
  box-shadow: var(--shadow-lg);
  border-radius: 4px;
  padding: 8px 0;
  opacity: 0; visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.18s ease;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-item .dropdown a {
  display: block;
  padding: 10px 18px;
  color: #333;
  font-size: 14px;
  font-weight: 500;
}
.nav-item .dropdown a:hover { background: var(--border-soft); color: var(--accent); text-decoration: none; }

/* Mobile menu toggle */
.menu-toggle {
  display: inline-block;
  background: transparent;
  border: 0;
  color: #fff;
  font-size: 24px;
  padding: 4px 10px;
  cursor: pointer;
  line-height: 1;
}

/* ---------- Container ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* ---------- Index Page Hero — Enhanced ---------- */
.hero {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 60%, #2a0000 100%);
  color: #fff;
  padding: 64px 20px;
  margin: -24px -16px 36px;
  border-bottom: 4px solid var(--accent);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="%23d5001c" stroke-width="0.5" opacity="0.15"/></svg>');
  background-size: 200px;
  opacity: 0.5;
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.hero h1 {
  font-size: 36px;
  margin-bottom: 12px;
  letter-spacing: -1px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.hero .tagline {
  font-size: 17px;
  color: #ccc;
  margin-bottom: 8px;
  max-width: 600px;
}
.hero .meta {
  font-size: 13px;
  color: #999;
  display: flex;
  align-items: center;
  gap: 6px;
}
.hero .meta::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---------- News Grid — Enhanced Cards ---------- */
.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.news-image {
  aspect-ratio: 16 / 9;
  background: #222;
  overflow: hidden;
  position: relative;
}
.news-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.news-card:hover .news-image img {
  transform: scale(1.05);
}
.news-image::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 40px;
  background: linear-gradient(transparent, rgba(0,0,0,0.4));
  pointer-events: none;
}
.news-image-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
  color: #888;
  font-size: 32px;
}
.news-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.news-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.news-date { color: var(--text-mute); font-size: 12px; font-weight: 500; }
.news-source {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 3px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.news-body h2 {
  font-size: 19px;
  margin: 0 0 10px;
  line-height: 1.25;
}
.news-body h2 a { color: var(--text); }
.news-body h2 a:hover { color: var(--accent); text-decoration: none; }
.news-body p {
  color: var(--text-mute);
  font-size: 14px;
  margin-bottom: 14px;
  flex: 1;
}
.news-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.tag {
  font-size: 11px;
  background: var(--border-soft);
  color: var(--text-mute);
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 500;
}

/* ---------- Article Page ---------- */
.article { max-width: 760px; margin: 0 auto; }
.article-header { margin-bottom: 32px; border-bottom: 3px solid var(--accent); padding-bottom: 20px; }
.article-header .kicker {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
  border-radius: 3px;
}
.article-header h1 {
  font-size: 32px;
  margin-bottom: 8px;
  line-height: 1.15;
}
.article-header .subtitle {
  font-size: 18px;
  color: var(--text-mute);
  margin-bottom: 10px;
}
.meta-line {
  font-size: 13px;
  color: var(--text-mute);
}
.article-hero-img {
  width: 100%;
  border-radius: 6px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-lg);
}
.article-image-credit {
  font-size: 11px;
  color: var(--text-mute);
  margin: -18px 0 24px;
  text-align: right;
  font-style: italic;
}
.article-body {
  font-size: 17px;
  line-height: 1.75;
}
.article-body p { margin-bottom: 16px; }
.article-body h2 {
  font-size: 22px;
  margin: 28px 0 12px;
  border-left: 4px solid var(--accent);
  padding-left: 12px;
}
.article-body h3 {
  font-size: 19px;
  margin: 24px 0 10px;
}
.article-body ul, .article-body ol { margin-left: 24px; margin-bottom: 16px; }
.article-body li { margin-bottom: 6px; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 12px 20px;
  background: #fafafa;
  margin: 16px 0;
  font-style: italic;
  color: var(--text-mute);
  border-radius: 0 4px 4px 0;
}

/* Gallery — multiple images per article */
.article-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 28px 0;
}
.article-gallery figure {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.article-gallery img {
  width: 100%;
  border-radius: 0;
}

/* Inline image — inserted between article paragraphs */
.article-inline-img {
  margin: 28px 0;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.article-inline-img img {
  width: 100%;
  border-radius: 6px;
}

/* Image credit caption (shared) */
.img-credit, .article-image-credit {
  font-size: 11px;
  color: var(--text-mute);
  margin-top: 6px;
  text-align: right;
  font-style: italic;
  padding: 0 4px;
}

/* Collapsible source + disclaimer */
.source-disclaimer {
  margin-top: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.source-disclaimer summary {
  padding: 14px 20px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  background: var(--border-soft);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
}
.source-disclaimer summary::before {
  content: '▸';
  font-size: 12px;
  transition: transform 0.2s;
  display: inline-block;
}
.source-disclaimer[open] summary::before {
  transform: rotate(90deg);
}
.source-disclaimer summary::-webkit-details-marker {
  display: none;
}
.source-disclaimer[open] summary {
  border-bottom: 1px solid var(--border);
}
.source-disclaimer .source-box,
.source-disclaimer .disclaimer {
  border-radius: 0;
  margin: 0;
  border-left: none;
  border-top: none;
}

.tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
}

/* Boxout for source + disclaimer */
.source-box {
  background: #f8f9fa;
  border-left: 4px solid var(--accent);
  padding: 20px 24px;
  border-radius: 0 6px 6px 0;
}
.disclaimer {
  background: #fffbe6;
  border: 1px solid #ffe69b;
  border-left: 4px solid var(--accent);
  padding: 16px 20px;
  margin-top: 16px;
  font-size: 13px;
  color: #5a4a1c;
  border-radius: 0 6px 6px 0;
}

/* ---------- Archive list — Enhanced ---------- */
.archive { margin-top: 48px; padding-top: 32px; border-top: 2px solid var(--border-soft); }
.archive h3 { font-size: 22px; margin-bottom: 16px; }
.archive ul { list-style: none; }
.archive li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 14px;
  transition: padding-left 0.15s ease;
}
.archive li:hover { padding-left: 8px; }
.archive li a { color: var(--text); }
.archive li a:hover { color: var(--accent); text-decoration: none; }

/* ---------- Footer — Enhanced ---------- */
.site-footer {
  background: var(--bg-dark);
  color: #b6b8b9;
  padding: 48px 0 0;
  margin-top: 64px;
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-dark), var(--accent));
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.footer-inner h4 { color: #fff; margin-bottom: 12px; font-size: 14px; text-transform: uppercase; letter-spacing: 1px; }
.footer-inner a { color: #b6b8b9; font-size: 13px; display: block; margin-bottom: 6px; }
.footer-inner a:hover { color: var(--accent); text-decoration: none; }
.footer-inner p { color: #b6b8b9; }
.footer-bottom {
  margin-top: 32px;
  padding: 20px 16px;
  text-align: center;
  border-top: 1px solid #1a1a1a;
  font-size: 12px;
  color: #888;
}

/* ==========================================================================
   MEDIA QUERIES — progressive enhancement
   ========================================================================== */

/* Tablet — 2 columns */
@media (min-width: 600px) {
  .news-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .hero h1 { font-size: 42px; }
  .hero .tagline { font-size: 18px; }
  .article-header h1 { font-size: 36px; }
  .article-gallery { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

/* Desktop — 3 columns, full nav */
@media (min-width: 860px) {
  .menu-toggle { display: none; }
  .nav-menu {
    display: flex;
    gap: 24px;
    align-items: center;
  }
  .news-grid { grid-template-columns: repeat(3, 1fr); gap: 28px; }
  .container { padding: 32px 24px; }
  .hero { padding: 80px 32px; }
  .hero h1 { font-size: 52px; }
  .footer-inner { grid-template-columns: 2fr 1fr 1fr; }
}

/* Large desktop */
@media (min-width: 1100px) {
  .article-header h1 { font-size: 42px; }
  .news-grid { gap: 32px; }
}

/* Small phones — tighten */
@media (max-width: 380px) {
  body { font-size: 15px; }
  .article-body { font-size: 16px; }
  .header-inner { padding: 0 10px; }
  .logo { font-size: 18px; }
  .hero h1 { font-size: 28px; }
}

/* Reduce motion preference */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}