/* Trendigger — card-style UI. Mobile-first, no framework. */

:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-alt: #f7f8fa;
  --border: #e4e6eb;
  --text: #1c1e21;
  --text-muted: #65676b;
  --accent: #ff4500;       /* reddit-ish orange */
  --accent-ink: #ffffff;
  --link: #1a73e8;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 2px 8px rgba(0,0,0,.04);
  --radius: 12px;
  --maxw: 1100px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1114;
    --surface: #16181d;
    --surface-alt: #1c1f25;
    --border: #2a2e35;
    --text: #e6e7e9;
    --text-muted: #9aa0a6;
    --link: #8ab4f8;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 14px rgba(0,0,0,.35);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans",
    "Noto Sans JP", "Noto Sans KR", "Noto Sans TC", "Noto Sans Thai",
    "Noto Sans Arabic", Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px 16px 60px;
}

header.site {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(1.2) blur(8px);
}
header.site .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 16px;
}
header.site .brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}
header.site .brand .dot { color: var(--accent); }
header.site nav {
  margin-left: auto;
  display: flex; gap: 14px; align-items: center;
  font-size: 14px;
}
header.site select {
  font: inherit;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text);
}

h1.page-title {
  font-size: 24px;
  margin: 8px 0 4px;
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
}
h1.page-title .flag { font-size: 28px; }
.page-sub {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0 0 20px;
}

/* Date nav bar */
.datebar {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
  margin: 12px 0 20px;
}
.datebar a, .datebar span {
  font-size: 13px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text-muted);
}
.datebar a:hover { background: var(--bg); color: var(--text); text-decoration: none; }
.datebar .current { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.datebar .datepicker {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}
.datebar .datepicker input[type="date"] {
  font: inherit;
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  color-scheme: light dark;
}

/* Trend grid */
.trend-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 720px) {
  .trend-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Trend card */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.card .head {
  display: flex; gap: 14px;
  padding: 14px 14px 10px;
}
.card .thumb {
  width: 84px; height: 84px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--surface-alt);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 26px;
  font-weight: 700;
}
.card .thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.card .head-text { flex: 1; min-width: 0; }
.card .rank {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  color: var(--text-muted);
  margin-right: 6px;
}
.card h2 {
  font-size: 17px;
  line-height: 1.3;
  margin: 0 0 6px;
  word-break: break-word;
}
.card h2 a { color: var(--text); }
.card .meta {
  display: flex; flex-wrap: wrap; gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}
.badge {
  display: inline-flex; align-items: center;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--text);
  border: 1px solid var(--border);
}
.badge.hot {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
  font-weight: 600;
}

.card .intro {
  padding: 0 14px 10px;
  font-size: 14px;
  color: var(--text);
}
.card .intro.no-intro {
  color: var(--text-muted);
  font-style: italic;
}
.card .news {
  padding: 10px 14px 14px;
  border-top: 1px solid var(--border);
  background: var(--surface-alt);
}
.card .news h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin: 0 0 6px;
  font-weight: 600;
}
.card .news ul {
  margin: 0; padding: 0; list-style: none;
  display: grid; gap: 6px;
}
.card .news li {
  font-size: 13px;
  line-height: 1.4;
}
.card .news .src {
  color: var(--text-muted);
  font-size: 12px;
}
.card .footer {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px;
  color: var(--text-muted);
}

/* Compact card for home page */
.compact {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.compact h3 {
  margin: 0 0 10px;
  font-size: 15px;
  display: flex; align-items: center; gap: 8px;
}
.compact h3 .flag { font-size: 20px; }
.compact ol {
  margin: 0; padding-left: 20px;
  display: grid; gap: 4px;
  font-size: 14px;
}
.compact ol li a { color: var(--text); }
.compact .see-all {
  display: inline-block;
  margin-top: 10px;
  font-size: 13px;
}
.home-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 640px) {
  .home-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .home-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Keyword detail page */
.detail-intro {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.detail-intro p {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
}
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 14px 0 24px;
}
@media (min-width: 640px) {
  .stats { grid-template-columns: repeat(4, 1fr); }
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.stat .label {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: .05em;
}
.stat .value {
  font-size: 18px;
  font-weight: 700;
  margin-top: 2px;
  word-break: break-word;
}

.timeline {
  display: grid; gap: 8px;
}
.timeline .row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 14px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
}
.timeline .row .bar {
  height: 8px;
  background: var(--accent);
  border-radius: 4px;
  opacity: .85;
}

h2.section-title {
  font-size: 17px;
  margin: 28px 0 12px;
  color: var(--text);
}

footer.site {
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  padding: 18px 16px;
  text-align: center;
}
footer.site a { color: var(--text-muted); }

/* Arabic / RTL support: applied when <html dir="rtl"> */
[dir="rtl"] .card .head { flex-direction: row-reverse; }
[dir="rtl"] .timeline .row { direction: rtl; }