/* TechGuyver Daily Brief — public news desk.
 *
 * Ported from the local viewer (tg-news-reporting/reports/index.html), which is
 * light-only. The dark palette here is new: built in OKLCH and contrast-checked,
 * every foreground/background pair clears 4.5:1 in BOTH themes (lowest is 5.70).
 *
 * The 7-stop rainbow is the studio's brand signature. It appears ONLY as a spine
 * or edge — never as a fill, never as gradient text.
 */

/* ------------------------------------------------------------ tokens */
:root {
  /* Brand rainbow — committed identity, identical in both themes. */
  --pink:   #ff2d95;
  --orange: #ff7a1a;
  --yellow: #ffd23f;
  --green:  #22d96e;
  --cyan:   #00d5ff;
  --blue:   #0066ff;
  --violet: #8a55ff;
  --grad: linear-gradient(180deg, #ff2d95, #ff7a1a, #ffd23f, #22d96e, #00d5ff, #0066ff, #8a55ff);

  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans:  "Inter", system-ui, -apple-system, sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Light surface — measured: body 10.90:1, muted 4.52:1. */
  --bg:        #fbfaf7;
  --surface:   #ffffff;
  --surface-2: #f5f2ec;
  --ink-hi:    #161616;
  --ink-body:  #3a3a3a;
  --ink-mute:  #6f6b64;
  --divider:   #ded8cc;
  --divider-2: #e9e3d8;
  --accent:    #0b5cd6;
  --accent-ink:#ffffff;

  --sent-pos-bg: #e7f6ec; --sent-pos-fg: #126b33;
  --sent-neg-bg: #fdeaf1; --sent-neg-fg: #a3124b;
  --sent-mix-bg: #fdf0e0; --sent-mix-fg: #8a4d06;
  --sent-neu-bg: #eeece8; --sent-neu-fg: #55514b;

  --shadow-sm: 0 1px 2px rgb(24 20 14 / .05);
  --shadow-md: 0 4px 16px -6px rgb(24 20 14 / .14);

  --read: 680px;      /* reading measure, from the viewer's --col */
  --rail-w: 248px;

  /* Exponential ease-out. No bounce, no elastic. */
  --ease: cubic-bezier(.22, 1, .36, 1);

  --z-sticky: 100;
  --z-overlay: 400;

  color-scheme: light;
}

/* Dark is authored once and applied by BOTH the media query (system default)
 * and the [data-theme] attribute (explicit user choice). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:        #12110f;
    --surface:   #1a1815;
    --surface-2: #221f1b;
    --ink-hi:    #f2efe9;
    --ink-body:  #cdc7bd;
    --ink-mute:  #98918a;
    --divider:   #34302a;
    --divider-2: #2a2621;
    --accent:    #5aa3ff;
    --accent-ink:#0d1117;

    --sent-pos-bg: #102a1a; --sent-pos-fg: #4ade80;
    --sent-neg-bg: #2d1220; --sent-neg-fg: #ff7aa8;
    --sent-mix-bg: #2d2110; --sent-mix-fg: #fbbf5a;
    --sent-neu-bg: #24211d; --sent-neu-fg: #a8a199;

    --shadow-sm: 0 1px 2px rgb(0 0 0 / .4);
    --shadow-md: 0 4px 20px -6px rgb(0 0 0 / .6);

    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg:        #12110f;
  --surface:   #1a1815;
  --surface-2: #221f1b;
  --ink-hi:    #f2efe9;
  --ink-body:  #cdc7bd;
  --ink-mute:  #98918a;
  --divider:   #34302a;
  --divider-2: #2a2621;
  --accent:    #5aa3ff;
  --accent-ink:#0d1117;

  --sent-pos-bg: #102a1a; --sent-pos-fg: #4ade80;
  --sent-neg-bg: #2d1220; --sent-neg-fg: #ff7aa8;
  --sent-mix-bg: #2d2110; --sent-mix-fg: #fbbf5a;
  --sent-neu-bg: #24211d; --sent-neu-fg: #a8a199;

  --shadow-sm: 0 1px 2px rgb(0 0 0 / .4);
  --shadow-md: 0 4px 20px -6px rgb(0 0 0 / .6);

  color-scheme: dark;
}

/* ------------------------------------------------------------ base */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 24px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-body);
  font: 400 17px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

h1, h2, h3 { color: var(--ink-hi); margin: 0; text-wrap: balance; }
p { margin: 0 0 1em; text-wrap: pretty; }

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

code {
  font: 500 .88em/1.4 var(--mono);
  background: var(--surface-2);
  padding: .12em .38em;
  border-radius: 4px;
}

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

.skip {
  position: absolute; left: -9999px;
  background: var(--ink-hi); color: var(--bg);
  padding: 10px 16px; z-index: calc(var(--z-overlay) + 1);
}
.skip:focus { left: 12px; top: 12px; }

.muted { color: var(--ink-mute); }

/* ------------------------------------------------------------ shell */
.shell {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr);
  min-height: 100vh;
}

.main { min-width: 0; }

.col {
  max-width: var(--read);
  margin: 0 auto;
  padding: clamp(40px, 7vw, 88px) 24px 120px;
}

.home {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(40px, 7vw, 88px) 24px 120px;
}

/* ------------------------------------------------------------ rail */
.rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  border-right: 1px solid var(--divider);
  background: var(--bg);
  overflow-y: auto;
  overscroll-behavior: contain;
}

/* The rainbow spine — the one loud thing on a quiet page. */
.rail::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--grad);
}

.rail-inner { padding: 28px 20px 40px 24px; }

.brand-link {
  display: block;
  text-decoration: none;
  margin-bottom: 22px;
}
.brand-name {
  display: block;
  font: 400 21px/1 var(--serif);
  color: var(--ink-hi);
  letter-spacing: -.01em;
}
.brand-sub {
  display: block;
  margin-top: 3px;
  font: 500 10px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.search-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  margin-bottom: 22px;
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: 8px;
  color: var(--ink-mute);
  font: 400 13px/1 var(--sans);
  cursor: pointer;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}
.search-btn:hover { border-color: var(--ink-mute); color: var(--ink-body); }
.search-btn svg { width: 14px; height: 14px; flex: none; }
.search-btn span { flex: 1; text-align: left; }
.search-btn kbd {
  font: 500 10px/1 var(--mono);
  padding: 3px 5px;
  border: 1px solid var(--divider);
  border-radius: 4px;
  color: var(--ink-mute);
}

.rail-h {
  display: block;
  font: 500 10px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 8px;
}

.date-picker {
  width: 100%;
  padding: 7px 9px;
  margin-bottom: 24px;
  background: var(--surface);
  color: var(--ink-body);
  border: 1px solid var(--divider);
  border-radius: 7px;
  font: 400 13px/1 var(--sans);
  cursor: pointer;
}

.toc { list-style: none; margin: 0 0 24px; padding: 0; }
.toc li { margin-bottom: 1px; }
.toc a {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 2px 6px;
  padding: 6px 8px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--ink-body);
  transition: background .16s var(--ease);
}
.toc a:hover { background: var(--surface-2); }
.toc a.active { background: var(--surface-2); color: var(--ink-hi); }
.toc a.active .toc-n { color: var(--accent); }
.toc-n {
  font: 500 10px/1.5 var(--mono);
  color: var(--ink-mute);
  padding-top: 2px;
}
.toc-t {
  font-size: 12.5px;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.toc-cat {
  grid-column: 2;
  font: 500 9px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.rail-foot {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--divider-2);
  font-size: 12px;
}
.rail-foot a { color: var(--ink-mute); text-decoration: none; }
.rail-foot a:hover { color: var(--accent); text-decoration: underline; }

.theme-btn {
  margin-left: auto;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: 7px;
  cursor: pointer;
  color: var(--ink-mute);
  font-size: 13px;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}
.theme-btn:hover { border-color: var(--ink-mute); color: var(--ink-hi); }
.theme-ico { grid-area: 1 / 1; }
/* Show the icon for the theme you'd switch TO. */
.theme-sun { display: none; }
:root[data-theme="dark"] .theme-sun { display: block; }
:root[data-theme="dark"] .theme-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-sun { display: block; }
  :root:not([data-theme="light"]) .theme-moon { display: none; }
}

/* ------------------------------------------------------------ brief head */
.brief-head { margin-bottom: clamp(36px, 6vw, 60px); }

.dateline {
  font: 500 11px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 14px;
}

.brief-head h1 {
  font: 400 clamp(40px, 7vw, 68px)/1.02 var(--serif);
  letter-spacing: -.02em;
  margin-bottom: 14px;
}

.standfirst {
  font-size: clamp(17px, 2.2vw, 19px);
  line-height: 1.55;
  color: var(--ink-mute);
  max-width: 60ch;
  margin: 0;
}

.cat-strip { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.cat-chip {
  font: 500 10px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 5px 9px;
  border: 1px solid var(--divider);
  border-radius: 100px;
  color: var(--ink-mute);
}

/* ------------------------------------------------------------ topic */
.topic {
  padding-top: clamp(36px, 5vw, 52px);
  margin-top: clamp(36px, 5vw, 52px);
  border-top: 1px solid var(--divider-2);
}
.topic:first-child { border-top: 0; margin-top: 0; padding-top: 0; }

.topic-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: baseline;
  margin-bottom: 12px;
}

.topic-num {
  font: 500 12px/1 var(--mono);
  color: var(--ink-mute);
  padding-top: 6px;
}

.topic-head h2 {
  font: 400 clamp(26px, 4vw, 37px)/1.1 var(--serif);
  letter-spacing: -.015em;
}

.topic-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 16px 34px;
}

.t-emoji { font-size: 14px; line-height: 1; }

.t-cat, .t-tag, .t-sent {
  font: 500 10.5px/1 var(--mono);
  padding: 5px 8px;
  border-radius: 100px;
  text-decoration: none;
  white-space: nowrap;
}

.t-cat {
  letter-spacing: .1em;
  text-transform: uppercase;
  background: var(--surface-2);
  color: var(--ink-body);
  border: 1px solid var(--divider-2);
}
.t-cat:hover { border-color: var(--accent); color: var(--accent); }

.t-tag {
  color: var(--ink-mute);
  border: 1px solid transparent;
}
.t-tag:hover { color: var(--accent); border-color: var(--divider); }

/* Sentiment is a published editorial judgment, not decoration — it gets real color. */
.t-sent { letter-spacing: .04em; }
.s-pos { background: var(--sent-pos-bg); color: var(--sent-pos-fg); }
.s-neg { background: var(--sent-neg-bg); color: var(--sent-neg-fg); }
.s-mix { background: var(--sent-mix-bg); color: var(--sent-mix-fg); }
.s-neu { background: var(--sent-neu-bg); color: var(--sent-neu-fg); }

/* The lead sentence. Set in serif at reading size — the weight comes from the
 * type, not from a coloured side-stripe. */
.pitch {
  font: 400 clamp(20px, 2.7vw, 23px)/1.45 var(--serif);
  color: var(--ink-hi);
  margin: 0 0 26px 34px;
  max-width: 40ch;
}
.pitch strong { font-weight: 400; }

.topic-body { margin-left: 34px; }

.block-label {
  font: 500 10px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 28px 0 12px;
}

ul.clean { list-style: none; margin: 0; padding: 0; }
ul.clean li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
  max-width: 68ch;
}
ul.clean li::before {
  content: "";
  position: absolute;
  left: 2px; top: .68em;
  width: 5px; height: 1px;
  background: var(--ink-mute);
}

/* ------------------------------------------------------------ sources */
.sources {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 8px;
}

.s-card { min-width: 0; }

.s-link {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--divider-2);
  border-radius: 9px;
  background: var(--surface);
  text-decoration: none;
  color: var(--ink-body);
  height: 100%;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease), transform .18s var(--ease);
}
.s-link:hover {
  border-color: var(--divider);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.s-thumb {
  width: 56px; height: 56px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--surface-2);
}
.s-thumb-empty { display: block; }

.s-body { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
/* Source labels and hosts are third-party text; a long unbroken URL or
   model name would otherwise push the card past the viewport. */
.s-title, .s-foot, .s-host { overflow-wrap: anywhere; }

.s-title {
  font-size: 13.5px;
  line-height: 1.35;
  color: var(--ink-hi);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.s-foot { display: flex; align-items: center; gap: 6px; min-width: 0; }

.s-kind {
  font: 500 9px/1 var(--mono);
  letter-spacing: .08em;
  padding: 3px 5px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--ink-mute);
  flex: none;
}
.k-x  { background: #1418200f; color: var(--ink-hi); }
.k-hn { background: #ff66000f; color: #b34700; }
.k-yt { background: #ff00000f; color: #b3151d; }
.k-gh { background: var(--surface-2); }
:root[data-theme="dark"] .k-hn { color: #ff9d5c; }
:root[data-theme="dark"] .k-yt { color: #ff8a90; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .k-hn { color: #ff9d5c; }
  :root:not([data-theme="light"]) .k-yt { color: #ff8a90; }
}

.s-host {
  font: 400 11px/1 var(--mono);
  color: var(--ink-mute);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.s-stats {
  display: flex;
  gap: 9px;
  font: 400 10.5px/1 var(--mono);
  color: var(--ink-mute);
  margin-top: auto;
  padding-top: 2px;
}

/* ------------------------------------------------------------ pager */
.pager {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: center;
  margin-top: 72px;
  padding-top: 26px;
  border-top: 1px solid var(--divider);
}

.pg { text-decoration: none; font-size: 13px; }
.pg-lbl {
  display: block;
  font: 500 9.5px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 4px;
}
.pg-d { color: var(--ink-hi); }
.pg-next { text-align: right; }
.pg-all {
  font: 500 10px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ------------------------------------------------------------ archive */
.home-head { margin-bottom: 34px; }
.home-head h1 {
  font: 400 clamp(42px, 8vw, 76px)/1.02 var(--serif);
  letter-spacing: -.02em;
  margin-bottom: 14px;
}

.home-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 20px 0 0;
  font: 400 12px/1 var(--mono);
  color: var(--ink-mute);
}
.home-stats b { color: var(--ink-hi); font-weight: 500; }

.filters {
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--divider-2);
}

.filter-row { display: flex; flex-wrap: wrap; gap: 6px; }
.filter-row.tags { margin-top: 10px; }

.chip {
  font: 500 11px/1 var(--mono);
  letter-spacing: .04em;
  padding: 7px 11px;
  border: 1px solid var(--divider);
  border-radius: 100px;
  background: transparent;
  color: var(--ink-body);
  cursor: pointer;
  transition: border-color .16s var(--ease), background .16s var(--ease), color .16s var(--ease);
}
.chip:hover { border-color: var(--ink-mute); }
.chip.is-on {
  background: var(--ink-hi);
  border-color: var(--ink-hi);
  color: var(--bg);
}
.chip.is-on .chip-n { color: var(--bg); opacity: .6; }
.chip-n { color: var(--ink-mute); }

.tag-wrap { margin-top: 10px; }
.tag-wrap summary {
  font: 500 11px/1 var(--mono);
  color: var(--ink-mute);
  cursor: pointer;
  padding: 4px 0;
  list-style: none;
}
.tag-wrap summary::-webkit-details-marker { display: none; }
.tag-wrap summary::before { content: "▸ "; }
.tag-wrap[open] summary::before { content: "▾ "; }
.tag-wrap summary:hover { color: var(--ink-body); }

.filter-status {
  margin: 12px 0 0;
  font: 400 11.5px/1 var(--mono);
  color: var(--ink-mute);
  min-height: 1em;
}

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(288px, 1fr));
  gap: 14px;
}

.card { min-width: 0; }
.card[hidden] { display: none; }

.card > a {
  display: block;
  height: 100%;
  padding: 18px;
  border: 1px solid var(--divider-2);
  border-radius: 12px;
  background: var(--surface);
  text-decoration: none;
  color: var(--ink-body);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
}
.card > a:hover {
  border-color: var(--divider);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-date {
  font: 500 10px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 10px;
}

.card-head {
  font: 400 20px/1.22 var(--serif);
  letter-spacing: -.01em;
  margin-bottom: 8px;
}

.card-pitch {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink-mute);
  margin: 0 0 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  font: 400 10.5px/1 var(--mono);
  color: var(--ink-mute);
}
.card-cat {
  padding: 3px 7px;
  border: 1px solid var(--divider-2);
  border-radius: 100px;
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* ------------------------------------------------------------ search */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgb(18 17 15 / .42);
  backdrop-filter: blur(3px);
  display: grid;
  align-items: start;
  justify-items: center;
  padding: clamp(40px, 10vh, 110px) 16px 16px;
}
.search-overlay[hidden] { display: none; }

.search-modal {
  width: min(660px, 100%);
  max-height: min(70vh, 640px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: 14px;
  box-shadow: 0 24px 60px -12px rgb(0 0 0 / .35);
  overflow: hidden;
  animation: pop .16s var(--ease);
}

@keyframes pop {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: none; }
}

.search-top {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--divider-2);
}
.search-ico { width: 17px; height: 17px; color: var(--ink-mute); flex: none; }

.search-input {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--ink-hi);
  font: 400 18px/1.3 var(--sans);
  outline: none;
  min-width: 0;
}
.search-input::placeholder { color: var(--ink-mute); }

.search-esc {
  font: 500 10px/1 var(--mono);
  padding: 5px 7px;
  border: 1px solid var(--divider);
  border-radius: 5px;
  background: transparent;
  color: var(--ink-mute);
  cursor: pointer;
}

.search-results { overflow-y: auto; padding: 6px; flex: 1; }

.search-dayhead {
  font: 500 9.5px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding: 12px 10px 6px;
}

.search-hit {
  display: block;
  padding: 9px 10px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--ink-body);
}
.search-hit:hover, .search-hit.active { background: var(--surface-2); }
.search-hit.active { outline: 1px solid var(--divider); }

.hit-head {
  font-size: 14.5px;
  line-height: 1.35;
  color: var(--ink-hi);
  margin-bottom: 3px;
}
.hit-snip {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-mute);
}
.search-hit mark {
  background: color-mix(in srgb, var(--yellow) 42%, transparent);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

.search-empty, .search-tip {
  padding: 26px 16px;
  text-align: center;
  color: var(--ink-mute);
  font-size: 13.5px;
}

.search-foot {
  padding: 9px 14px;
  border-top: 1px solid var(--divider-2);
  font: 400 10.5px/1 var(--mono);
  color: var(--ink-mute);
  background: var(--surface-2);
}
.search-foot kbd {
  font: inherit;
  padding: 2px 4px;
  border: 1px solid var(--divider);
  border-radius: 3px;
  margin-right: 1px;
}

/* ------------------------------------------------------------ footer */
.foot {
  border-top: 1px solid var(--divider-2);
  padding: 30px 24px 60px;
  font-size: 13px;
  color: var(--ink-mute);
}
.foot p { max-width: var(--read); margin: 0 auto .5em; }
.foot a { color: inherit; }

/* ------------------------------------------------------------ responsive */
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }

  .rail {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--divider);
  }
  .rail::before { inset: 0 0 auto 0; width: auto; height: 3px; background: var(--grad); }

  .rail-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
  }
  .brand-link { margin: 0; margin-right: auto; }
  .search-btn { width: auto; margin: 0; min-width: 190px; }
  .date-picker { width: auto; margin: 0; max-width: 170px; }
  .rail-h { display: none; }
  .toc { display: none; }          /* the page itself is the TOC on mobile */
  .rail-foot { border-top: 0; padding-top: 0; }

  .topic-meta, .pitch, .topic-body { margin-left: 0; }
  .topic-head { grid-template-columns: 1fr; gap: 4px; }
  .topic-num { padding-top: 0; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .sources { grid-template-columns: 1fr; }
  .pager { grid-template-columns: 1fr; text-align: left; }
  .pg-next { text-align: left; }
}

/* ------------------------------------------------------------ motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .card > a:hover, .s-link:hover { transform: none; }
}

/* ------------------------------------------------------------ print */
@media print {
  .rail, .pager, .search-overlay, .filters { display: none; }
  .shell { display: block; }
  body { background: #fff; color: #000; }
  .s-link { break-inside: avoid; }
}