:root {
  --canvas: #090b10;
  --surface: #11141b;
  --surface-raised: #171b24;
  --surface-muted: #0d1016;
  --text: #f0f3f8;
  --muted: #9aa4b4;
  --subtle: #657083;
  --line: rgba(218, 227, 241, 0.14);
  --line-strong: rgba(218, 227, 241, 0.28);
  --accent: #79a8ff;
  --accent-strong: #a9c6ff;
  --focus: #b7d0ff;
  --hero-glow: rgba(77, 126, 224, 0.16);
  --header-bg: rgba(9, 11, 16, 0.84);
  color-scheme: dark;
}

html[data-theme="light"] {
  --canvas: #f4f6fa;
  --surface: #ffffff;
  --surface-raised: #ffffff;
  --surface-muted: #edf1f7;
  --text: #101521;
  --muted: #536174;
  --subtle: #738094;
  --line: rgba(25, 41, 69, 0.12);
  --line-strong: rgba(25, 41, 69, 0.24);
  --accent: #2d68c4;
  --accent-strong: #154ea9;
  --focus: #155dce;
  --hero-glow: rgba(82, 136, 232, 0.16);
  --header-bg: rgba(244, 246, 250, 0.84);
  color-scheme: light;
}

* { box-sizing: border-box; }

html { background: var(--canvas); }

body {
  min-width: 320px;
  margin: 0;
  background: radial-gradient(1000px 520px at 88% -10%, var(--hero-glow), transparent 62%), var(--canvas);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

::selection { background: rgba(121, 168, 255, 0.3); color: #fff; }

.container { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }

.site-header { position: relative; z-index: 10; border-bottom: 1px solid var(--line); background: var(--header-bg); backdrop-filter: blur(18px); }

.site-header .container { display: flex; align-items: center; min-height: 72px; gap: 32px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-size: 0.83rem;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-mark { display: grid; width: 24px; height: 24px; place-items: center; border: 1px solid var(--line-strong); border-radius: 5px; background: linear-gradient(145deg, var(--surface-raised), transparent); color: var(--accent); font-size: 0.72rem; letter-spacing: 0; }

.main-nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }

.main-nav a, .site-footer a { color: var(--muted); font-size: 0.86rem; text-decoration: none; transition: color 160ms ease; }
.main-nav a:hover, .site-footer a:hover { color: var(--text); }

.controls { display: flex; align-items: center; gap: 10px; }

.theme-switcher { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-muted); }
.theme-button { min-width: 49px; min-height: 32px; padding: 4px 8px; border: 0; border-radius: 4px; background: transparent; color: var(--subtle); cursor: pointer; font: inherit; font-size: 0.72rem; font-weight: 680; transition: color 180ms ease, background-color 180ms ease, box-shadow 180ms ease; }
.theme-button:hover { color: var(--text); }.theme-button[aria-pressed="true"] { background: var(--surface); box-shadow: 0 1px 5px rgba(15, 25, 45, 0.16); color: var(--text); }

button#language-toggle, .lang-button {
  min-height: 38px;
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: border-color 160ms ease, background-color 160ms ease;
}

button#language-toggle:hover, .lang-button:hover { border-color: var(--accent); background: rgba(121, 168, 255, 0.08); }

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

main.container { min-height: calc(100vh - 196px); padding-top: 72px; padding-bottom: 88px; }

.masthead-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 360px); align-items: end; gap: 56px; }
.masthead-block { max-width: 720px; }

.eyebrow, .issue-header span, .archive-header .eyebrow, .related-episodes h2 {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.masthead-block h1, .episode-full h1, .archive-header h2 {
  margin: 12px 0 0;
  color: var(--text);
  font-weight: 680;
  letter-spacing: -0.052em;
}

.masthead-block h1 { max-width: 700px; font-size: clamp(3rem, 6.3vw, 5.8rem); line-height: 0.98; }
.editorial-summary { max-width: 600px; margin: 22px 0 0; color: var(--muted); font-size: 1.02rem; line-height: 1.7; }

.search-area { position: relative; padding: 18px; border: 1px solid var(--line); border-radius: 10px; background: color-mix(in srgb, var(--surface) 84%, transparent); box-shadow: 0 16px 34px rgba(10, 18, 36, 0.08); }
.search-row { display: grid; grid-template-columns: minmax(0, 1fr) 124px; gap: 8px; }
.search-control { display: flex; }
.search-input-wrap input, .search-select-wrap select, .search-control input {
  width: 100%; min-height: 44px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 5px;
  background: var(--surface-muted); color: var(--text); font: inherit; font-size: 0.85rem;
}
.search-input-wrap input::placeholder { color: var(--subtle); }
.search-select-wrap select { appearance: none; padding-right: 30px; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 18px) calc(50% - 2px), calc(100% - 12px) calc(50% - 2px); background-size: 6px 6px; background-repeat: no-repeat; }
.search-status { min-height: 1.5em; margin: 8px 0 0; color: var(--subtle); font-size: 0.76rem; }
.search-results { display: grid; gap: 8px; margin-top: 10px; }
.search-hit { padding: 15px; border: 1px solid var(--line); background: var(--surface); }
.search-hit h3 { margin: 0 0 5px; font-size: 1rem; }.search-hit h3 a { color: var(--text); text-decoration: none; }.search-hit .meta, .search-hit p { margin: 0; color: var(--muted); font-size: 0.82rem; }.search-hit p { margin-top: 4px; }

.divider { width: 100%; height: 1px; margin: 72px 0; background: var(--line); }
.issue-panel, .week-group, .featured-section, .all-episodes { margin: 0; }
.issue-header, .week-header, .featured-topbar { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; }
.issue-header { padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.issue-header time, .week-header time { color: var(--subtle); font-size: 0.8rem; white-space: nowrap; }

.this-week-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-bottom: 1px solid var(--line); }
.this-week-item { position: relative; min-height: 190px; padding: 26px 28px; border-left: 1px solid var(--line); color: var(--text); text-decoration: none; transition: background-color 180ms ease, border-color 180ms ease; }
.this-week-item + .this-week-item { border-left: 1px solid var(--line); padding-left: 28px; }
.this-week-item:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 6%, transparent); }
.issue-kicker, .week-badge, .tag, .language-tag { display: inline-block; color: var(--accent); font-size: 0.7rem; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; }
.this-week-item strong { display: block; max-width: 32ch; margin: 13px 0 8px; font-size: 1.28rem; line-height: 1.32; letter-spacing: -0.025em; }
.this-week-item p, .story-card p { margin: 0; color: var(--muted); font-size: 0.9rem; line-height: 1.55; }

.featured-topbar { margin-bottom: 22px; }.featured-topbar h2 { margin: 0; font-size: clamp(1.55rem, 2.5vw, 2.2rem); letter-spacing: -0.04em; }.featured-topbar a { color: var(--accent-strong); font-size: 0.86rem; font-weight: 650; text-decoration: none; }
.week-groups { display: grid; gap: 16px; }.week-group { border-top: 1px solid var(--line-strong); padding-top: 17px; }
.week-header { margin-bottom: 15px; }.week-label { color: var(--text); font-size: 0.78rem; font-weight: 740; letter-spacing: 0.1em; text-transform: uppercase; }
.language-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 44px; }.language-column { min-width: 0; }.language-tag { margin-bottom: 10px; color: var(--subtle); }.language-tag.english { color: #8caee8; }
.story-card { display: block; padding: 14px 0 16px; border-top: 1px solid var(--line); color: var(--text); text-decoration: none; transition: padding-left 180ms ease, border-color 180ms ease, background-color 180ms ease; }.story-card:hover { padding-left: 8px; border-color: var(--accent); background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 6%, transparent), transparent 70%); }.story-date { display: block; margin-bottom: 5px; color: var(--subtle); font-size: 0.72rem; font-weight: 630; letter-spacing: 0.04em; }.story-card strong { display: block; margin-bottom: 6px; font-size: 1.03rem; line-height: 1.36; letter-spacing: -0.018em; }
.archive-header { margin-bottom: 38px; }.archive-header h2 { font-size: clamp(2.6rem, 5vw, 4.5rem); line-height: 1; }.archive-groups { gap: 34px; }

.episode-full { max-width: 790px; margin: 0 auto; }.episode-full header { padding-bottom: 34px; border-bottom: 1px solid var(--line); }.article-meta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; color: var(--subtle); font-size: 0.8rem; }.week-badge, .tag { padding: 3px 7px; border: 1px solid var(--line); border-radius: 3px; }.episode-full h1 { font-size: clamp(2.65rem, 5.4vw, 4.75rem); line-height: 1.04; }.translation-switcher { margin: 24px 0 36px; }.episode-body { color: #d7dde7; font-size: 1.05rem; }.episode-body > * { max-width: 68ch; }.episode-body h2, .episode-body h3 { color: var(--text); margin-top: 2.6em; line-height: 1.2; letter-spacing: -0.025em; }.episode-body h2 { font-size: 1.65em; }.episode-body a { color: var(--accent-strong); text-underline-offset: 3px; }.episode-body blockquote { margin: 1.75em 0; padding: 2px 0 2px 20px; border-left: 2px solid var(--accent); color: var(--muted); }.episode-body code { padding: 0.15em 0.35em; border: 1px solid var(--line); background: var(--surface); font-size: 0.9em; }.episode-body pre { overflow-x: auto; padding: 18px; border: 1px solid var(--line); background: var(--surface-muted); }.episode-body pre code { padding: 0; border: 0; background: none; }
.related-episodes { margin-top: 70px; padding-top: 20px; border-top: 1px solid var(--line-strong); }.related-episodes h2 { margin: 0 0 14px; }.related-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 28px; }
.site-footer { border-top: 1px solid var(--line); padding: 26px 0 32px; color: var(--subtle); }.footer-row { display: flex; justify-content: space-between; gap: 20px; }.site-footer small { font-size: 0.75rem; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; } }
@media (max-width: 760px) { .container { width: min(100% - 32px, 1160px); }.site-header .container { min-height: 64px; gap: 12px; }.brand { margin-right: auto; }.brand > span:last-child { display: none; }.main-nav { order: 3; width: 100%; gap: 16px; }.controls { gap: 6px; }.theme-button { min-width: 43px; }.main-nav a { font-size: 0.78rem; }.masthead-row { grid-template-columns: 1fr; gap: 34px; }.masthead-block h1 { font-size: clamp(2.75rem, 15vw, 4.4rem); }.search-row { grid-template-columns: 1fr; }.divider { margin: 52px 0; }.this-week-list, .language-grid, .related-list { grid-template-columns: 1fr; }.this-week-item { min-height: auto; padding: 22px; }.this-week-item + .this-week-item { padding-left: 22px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }.issue-header, .week-header, .featured-topbar, .footer-row { align-items: flex-start; flex-direction: column; gap: 8px; }.language-grid { gap: 26px; }.archive-header { margin-bottom: 28px; } main.container { padding-top: 48px; padding-bottom: 64px; } }