@layer reset, base, components, utilities;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body, h1, h2, h3, p, ol, ul, figure { margin: 0; }
  img, svg, video, iframe { display: block; max-width: 100%; }
  button, input, select, textarea { font: inherit; }
  button, summary { -webkit-tap-highlight-color: transparent; }
}

@layer base {
  :root {
    --canvas: #f4f0e7;
    --paper: #fffdf8;
    --paper-warm: #ece4d6;
    --ink: #22201c;
    --ink-soft: #655e54;
    --rule: #d8cfc1;
    --rule-strong: #bcb0a0;
    --oxblood: #743a2d;
    --olive: #555b43;
    --brass: #96713d;
    --focus: #235b68;
    --accent: var(--oxblood);
    --accent-rgb: 116 58 45;
    --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
    --sans: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, system-ui, sans-serif;
    --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    --shadow: 0 18px 50px rgb(51 43 32 / 8%);
    --header-h: 76px;
  }

  .accent-home { --accent: #743a2d; --accent-rgb: 116 58 45; }
  .accent-ada { --accent: #9b572d; --accent-rgb: 155 87 45; }
  .accent-botneve { --accent: #43566a; --accent-rgb: 67 86 106; }
  .accent-cleange { --accent: #53654c; --accent-rgb: 83 101 76; }
  .accent-docually { --accent: #756354; --accent-rgb: 117 99 84; }
  .accent-labheritage { --accent: #456279; --accent-rgb: 69 98 121; }
  .accent-moatbuy { --accent: #79503d; --accent-rgb: 121 80 61; }
  .accent-paycheckaid { --accent: #416456; --accent-rgb: 65 100 86; }
  .accent-uatgpt { --accent: #644f68; --accent-rgb: 100 79 104; }

  html { background: var(--canvas); color: var(--ink); }
  body {
    min-width: 320px;
    background:
      linear-gradient(90deg, rgb(122 95 61 / 2.5%) 1px, transparent 1px) 0 0 / 78px 78px,
      var(--canvas);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
  }

  a { color: inherit; text-decoration: none; }
  button, summary, a { outline-offset: 4px; }
  :focus-visible { outline: 3px solid var(--focus); }
  ::selection { background: rgb(var(--accent-rgb) / 18%); color: var(--ink); }

  h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.05; }
  h1 { letter-spacing: -.045em; }
  h2 { letter-spacing: -.025em; }
  p { max-width: 68ch; }
  main { min-height: 65vh; }
}

@layer components {
  .skip-link {
    position: fixed;
    z-index: 1000;
    top: 12px;
    left: 12px;
    transform: translateY(-160%);
    padding: .7rem 1rem;
    background: var(--ink);
    color: var(--paper);
    border-radius: 4px;
    font-size: .8rem;
    font-weight: 700;
  }
  .skip-link:focus { transform: translateY(0); }

  .site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    height: var(--header-h);
    border-bottom: 1px solid rgb(188 176 160 / 78%);
    background: rgb(244 240 231 / 92%);
    backdrop-filter: blur(16px);
  }
  .header-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(100% - 48px, 1720px);
    height: 100%;
    margin-inline: auto;
  }
  .wordmark {
    font-family: var(--serif);
    font-size: clamp(1.35rem, 2vw, 1.75rem);
    letter-spacing: -.035em;
    line-height: 1;
    white-space: nowrap;
  }
  .wordmark::after {
    content: "";
    display: block;
    width: 100%;
    height: 1px;
    margin-top: 4px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 180ms ease;
  }
  .wordmark:hover::after, .wordmark[aria-current="page"]::after { transform: scaleX(1); }
  .primary-nav { display: flex; align-items: stretch; gap: .25rem; height: 100%; }
  .primary-nav > a,
  .mega-menu > summary {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0 .9rem;
    border: 0;
    color: var(--ink-soft);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
  }
  .primary-nav > a:hover,
  .primary-nav > a[aria-current="page"],
  .mega-menu[open] > summary { color: var(--ink); }
  .mega-menu { position: static; }
  .mega-menu > summary { cursor: pointer; list-style: none; gap: .5rem; }
  .mega-menu > summary::-webkit-details-marker { display: none; }
  .mega-menu[open] > summary span { transform: rotate(180deg); }
  .mega-panel {
    position: absolute;
    inset: var(--header-h) 0 auto;
    display: grid;
    grid-template-columns: minmax(240px, .58fr) 2fr;
    gap: clamp(2rem, 6vw, 7rem);
    width: 100%;
    max-height: calc(100vh - var(--header-h) - 20px);
    overflow: auto;
    padding: clamp(1.75rem, 4vw, 3.75rem);
    border: 1px solid var(--rule-strong);
    border-top: 0;
    background: var(--paper);
    box-shadow: var(--shadow);
  }
  .mega-heading { align-self: center; }
  .mega-heading > p:last-child { margin-top: 1rem; font-family: var(--serif); font-size: 1.6rem; line-height: 1.25; }
  .mega-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
  .mega-channel {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: start;
    gap: .75rem;
    min-height: 120px;
    padding: 1rem;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    background: linear-gradient(145deg, transparent 68%, rgb(var(--accent-rgb) / 6%));
  }
  .mega-channel:hover, .mega-channel[aria-current="page"] { background-color: rgb(var(--accent-rgb) / 8%); }
  .mega-channel strong { display: block; font-family: var(--serif); font-size: 1.25rem; font-weight: 400; }
  .mega-channel small { display: block; margin-top: .25rem; color: var(--ink-soft); font-size: .72rem; line-height: 1.35; }
  .mega-arrow { color: var(--accent); }
  .folio { color: var(--accent); font: .68rem/1 var(--mono); letter-spacing: .08em; }

  .eyebrow,
  .rail-label {
    color: var(--accent);
    font-size: .69rem;
    font-weight: 800;
    letter-spacing: .16em;
    line-height: 1.3;
    text-transform: uppercase;
  }

  .home-intro,
  .channel-intro,
  .reading-intro {
    width: min(100% - 48px, 1720px);
    margin-inline: auto;
  }
  .home-intro { padding: clamp(4rem, 9vw, 9rem) 0 clamp(4rem, 7vw, 7rem); }
  .home-intro h1 {
    max-width: 1080px;
    margin-top: 1.1rem;
    font-size: clamp(3.55rem, 7.7vw, 8.6rem);
    line-height: .86;
  }
  .home-intro h1 em { color: var(--accent); font-weight: 400; }
  .intro-deck {
    max-width: 760px;
    margin-top: clamp(2rem, 4vw, 3.5rem);
    color: var(--ink-soft);
    font-family: var(--serif);
    font-size: clamp(1.15rem, 2vw, 1.65rem);
    line-height: 1.45;
  }
  .intro-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
  .button-primary,
  .button-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: .72rem 1.2rem;
    border: 1px solid var(--ink);
    border-radius: 3px;
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
  }
  .button-primary { background: var(--ink); color: var(--paper); }
  .button-primary:hover { background: var(--accent); border-color: var(--accent); }
  .button-secondary { background: transparent; color: var(--ink); }
  .button-secondary:hover { background: var(--paper); }

  .studio-grid {
    display: grid;
    grid-template-columns: 232px minmax(520px, 1fr) 344px;
    align-items: start;
    gap: clamp(1rem, 2vw, 1.75rem);
    width: min(100% - 48px, 1720px);
    margin-inline: auto;
    padding-bottom: clamp(5rem, 9vw, 9rem);
  }
  .left-rail, .broadcast-desk { min-width: 0; }
  .rail-sticky,
  .broadcast-sticky { position: sticky; top: calc(var(--header-h) + 24px); }
  .rail-sticky { padding: 1.15rem 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule); }
  .rail-label { padding: 0 .65rem 1rem; }
  .channel-list { display: grid; }
  .channel-list a {
    position: relative;
    display: grid;
    grid-template-columns: 34px 1fr;
    align-items: center;
    min-height: 46px;
    padding: .55rem .65rem;
    border-top: 1px solid var(--rule);
    color: var(--ink-soft);
    font-size: .77rem;
    font-weight: 750;
    letter-spacing: .045em;
  }
  .channel-list a::before {
    content: "";
    position: absolute;
    inset: 7px auto 7px 0;
    width: 3px;
    background: var(--accent);
    transform: scaleY(0);
    transition: transform 150ms ease;
  }
  .channel-list a:hover,
  .channel-list a[aria-current="page"] { background: rgb(var(--accent-rgb) / 7%); color: var(--ink); }
  .channel-list a:hover::before,
  .channel-list a[aria-current="page"]::before { transform: scaleY(1); }
  .rail-number { color: var(--accent); font: .63rem/1 var(--mono); }
  .utility-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 1rem; background: var(--rule); }
  .utility-list a { min-height: 38px; padding: .6rem; background: var(--canvas); color: var(--ink-soft); font-size: .7rem; }
  .utility-list a:hover, .utility-list a[aria-current="page"] { color: var(--ink); background: var(--paper); }
  .mobile-catalogue { display: none; }

  .centre-stage { min-width: 0; }
  .screening-room { scroll-margin-top: calc(var(--header-h) + 1rem); }
  .screen-frame {
    position: relative;
    isolation: isolate;
    display: flex;
    aspect-ratio: 16 / 9;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    padding: clamp(1.15rem, 3vw, 2.5rem);
    border: 1px solid rgb(255 255 255 / 12%);
    background:
      radial-gradient(circle at 82% 24%, rgb(255 255 255 / 10%) 0 1px, transparent 2px),
      linear-gradient(128deg, #1d1b18 0 54%, color-mix(in srgb, var(--accent) 70%, #171512) 54% 68%, #292621 68%);
    color: #f5efe4;
    box-shadow: var(--shadow);
  }
  .screen-frame::before,
  .screen-frame::after {
    content: "";
    position: absolute;
    z-index: -1;
    border: 1px solid rgb(255 255 255 / 15%);
    transform: rotate(-8deg);
  }
  .screen-frame::before { inset: 12% -8% auto 46%; height: 44%; }
  .screen-frame::after { inset: auto 18% -25% auto; width: 46%; height: 60%; transform: rotate(14deg); }
  .screen-grid {
    position: absolute;
    z-index: -2;
    inset: 0;
    background-image: linear-gradient(rgb(255 255 255 / 4%) 1px, transparent 1px), linear-gradient(90deg, rgb(255 255 255 / 4%) 1px, transparent 1px);
    background-size: 12.5% 25%;
    mask-image: linear-gradient(90deg, transparent, #000 48%, #000);
  }
  .screen-topline,
  .screen-bottomline {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: .65rem;
    font-weight: 800;
    letter-spacing: .15em;
    text-transform: uppercase;
  }
  .screen-titleplate { width: min(82%, 720px); }
  .screen-titleplate p { margin-bottom: .7rem; color: #dfd2bf; font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
  .screen-titleplate h2 { font-size: clamp(2rem, 5.2vw, 5.5rem); line-height: .96; text-wrap: balance; }
  .programme-caption {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 2rem;
    padding: 1.4rem 0 0;
  }
  .programme-caption p:last-child { margin-top: .45rem; color: var(--ink-soft); }
  .text-action { display: inline-flex; align-items: center; gap: .8rem; min-height: 44px; border-bottom: 1px solid var(--ink); font-size: .76rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; }
  .text-action:hover { color: var(--accent); border-color: var(--accent); }
  .feature-switcher { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); margin-top: 1.4rem; border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
  .feature-chip {
    min-height: 60px;
    padding: .55rem .35rem;
    border: 0;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    background: rgb(255 253 248 / 48%);
    color: var(--ink-soft);
    cursor: pointer;
    font-size: .66rem;
    font-weight: 700;
  }
  .feature-chip span { display: block; margin-bottom: .25rem; color: var(--accent); font: .61rem/1 var(--mono); }
  .feature-chip:hover, .feature-chip[aria-pressed="true"] { background: var(--paper); color: var(--ink); box-shadow: inset 0 -3px var(--accent); }

  .broadcast-sticky { padding: 1.15rem; border: 1px solid var(--rule-strong); background: rgb(255 253 248 / 68%); box-shadow: 0 12px 38px rgb(51 43 32 / 5%); }
  .desk-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
  .desk-heading h2 { margin-top: .35rem; font-size: 1.65rem; }
  .studio-clock { color: var(--ink-soft); font: .66rem/1 var(--mono); letter-spacing: .06em; }
  .broadcast-card { border: 1px solid #332f29; background: #201e1a; color: #f5efe4; }
  .broadcast-screen {
    position: relative;
    isolation: isolate;
    display: flex;
    aspect-ratio: 4 / 3;
    flex-direction: column;
    justify-content: end;
    overflow: hidden;
    padding: 1.2rem;
    background: linear-gradient(150deg, #2c2822, #171613);
  }
  .broadcast-screen::before { content: ""; position: absolute; z-index: -1; inset: 0; background: radial-gradient(circle at 72% 18%, rgb(var(--accent-rgb) / 42%), transparent 46%); }
  .broadcast-screen strong { font-family: var(--serif); font-size: 1.55rem; font-weight: 400; }
  .broadcast-screen p { margin-top: .45rem; color: #cfc5b6; font-size: .76rem; line-height: 1.55; }
  .broadcast-screen iframe { width: 100%; height: 100%; border: 0; }
  .broadcast-state { align-self: flex-start; margin-bottom: auto; padding: .35rem .5rem; border: 1px solid rgb(255 255 255 / 30%); font-size: .59rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
  .signal-lines { position: absolute; z-index: -1; inset: 22% 12% auto; display: flex; align-items: center; gap: 5px; height: 44px; opacity: .52; }
  .signal-lines i { width: 2px; height: 22%; background: #e9dfd0; animation: signal 2.6s ease-in-out infinite; }
  .signal-lines i:nth-child(2n) { height: 62%; animation-delay: -.4s; }
  .signal-lines i:nth-child(3n) { height: 90%; animation-delay: -.8s; }
  .broadcast-meta { display: flex; justify-content: space-between; gap: 1rem; padding: .65rem .8rem; border-top: 1px solid #3c3831; color: #cfc5b6; font-size: .6rem; letter-spacing: .08em; text-transform: uppercase; }
  .stream-action { margin-top: 1rem; min-height: 44px; border: 1px solid #f5efe4; background: transparent; color: #f5efe4; cursor: pointer; }
  .schedule { margin-top: 1.4rem; }
  .section-heading.compact h3 { margin-top: .35rem; font-size: 1.25rem; }
  .schedule ol { margin-top: .75rem; padding: 0; border-top: 1px solid var(--rule); list-style: none; }
  .schedule li { display: grid; grid-template-columns: 52px 1fr; gap: .7rem; padding: .8rem 0; border-bottom: 1px solid var(--rule); }
  .schedule-time { padding-top: .1rem; color: var(--accent); font: .66rem/1.5 var(--mono); }
  .schedule a { display: block; }
  .schedule strong { display: block; font-size: .76rem; }
  .schedule small { display: block; margin-top: .15rem; color: var(--ink-soft); font-size: .68rem; }
  .schedule a:hover strong { color: var(--accent); }
  .desk-note { margin-top: 1rem; color: var(--ink-soft); font-size: .68rem; line-height: 1.55; }

  .editorial-section { margin-top: clamp(4rem, 8vw, 7rem); scroll-margin-top: calc(var(--header-h) + 2rem); }
  .section-heading { display: grid; grid-template-columns: minmax(240px, .8fr) 1fr; align-items: end; gap: clamp(1rem, 4vw, 3rem); margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--rule-strong); }
  .section-heading h2 { margin-top: .45rem; font-size: clamp(2rem, 3.4vw, 3.4rem); }
  .section-heading > p { justify-self: end; color: var(--ink-soft); font-size: .9rem; }
  .channel-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
  .channel-card { min-width: 0; }
  .channel-card a {
    display: flex;
    min-height: 245px;
    flex-direction: column;
    padding: clamp(1.15rem, 2vw, 1.6rem);
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    background: linear-gradient(145deg, rgb(255 253 248 / 42%) 55%, rgb(var(--accent-rgb) / 8%));
  }
  .channel-card-top, .channel-card-foot { display: flex; justify-content: space-between; gap: 1rem; color: var(--ink-soft); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; }
  .channel-card h3 { margin-top: auto; color: var(--accent); font-size: clamp(2rem, 3vw, 3.1rem); }
  .channel-card p { margin: .35rem 0 auto; font-family: var(--serif); font-size: 1.05rem; line-height: 1.35; }
  .channel-card-foot { margin-top: 1.3rem; padding-top: .7rem; border-top: 1px solid var(--rule); }
  .channel-card a:hover { background-color: var(--paper); box-shadow: inset 0 0 0 1px var(--accent); }

  .programme-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem; }
  .programme-card > a, .programme-card-static { display: block; }
  .programme-art {
    position: relative;
    display: flex;
    aspect-ratio: 16 / 10;
    flex-direction: column;
    overflow: hidden;
    padding: 1rem;
    border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--rule));
    background:
      linear-gradient(132deg, transparent 0 52%, rgb(var(--accent-rgb) / 12%) 52% 72%, transparent 72%),
      var(--paper);
  }
  .programme-art::after { content: ""; position: absolute; width: 42%; aspect-ratio: 1; right: -8%; bottom: -28%; border: 1px solid rgb(var(--accent-rgb) / 38%); border-radius: 50%; }
  .programme-folio { color: var(--accent); font: .62rem/1 var(--mono); }
  .programme-art p { margin-top: auto; color: var(--accent); font-size: .63rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
  .programme-art h3 { position: relative; z-index: 1; max-width: 85%; margin-top: .35rem; font-size: clamp(1.45rem, 2.3vw, 2.25rem); line-height: 1.05; }
  .programme-line { width: 32%; height: 2px; margin-top: .9rem; background: var(--accent); }
  .programme-info { display: flex; justify-content: space-between; gap: 1rem; padding: .65rem .1rem; color: var(--ink-soft); font-size: .68rem; }
  .programme-card a:hover .programme-art { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }

  .channel-intro {
    display: grid;
    grid-template-columns: 1fr minmax(280px, .6fr);
    align-items: end;
    gap: 3rem;
    padding: clamp(3.5rem, 7vw, 7rem) 0 clamp(3.5rem, 6vw, 6rem);
  }
  .channel-intro h1 { margin-top: .5rem; color: var(--accent); font-size: clamp(4rem, 9vw, 9.5rem); line-height: .8; }
  .channel-statement { justify-self: end; max-width: 480px; padding-left: 1.5rem; border-left: 2px solid var(--accent); }
  .channel-statement p { font-family: var(--serif); font-size: clamp(1.4rem, 2.2vw, 2rem); line-height: 1.28; }
  .channel-statement a { display: inline-flex; margin-top: 1rem; gap: .7rem; border-bottom: 1px solid var(--ink); font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
  .series-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
  .series-card { min-height: 215px; padding: 1.3rem; background: rgb(255 253 248 / 72%); }
  .series-index { color: var(--accent); font: .65rem/1 var(--mono); }
  .series-card h3 { margin-top: 2rem; font-size: 1.65rem; }
  .series-card p { margin-top: .45rem; color: var(--ink-soft); font-size: .82rem; }
  .series-card small { display: block; margin-top: 1rem; color: var(--accent); font-size: .65rem; letter-spacing: .08em; text-transform: uppercase; }
  .playlist-action { min-height: 48px; margin-top: 1rem; padding: .72rem 1rem; border: 1px solid var(--accent); border-radius: 2px; background: transparent; color: var(--accent); cursor: pointer; font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
  .playlist-action:hover { background: var(--accent); color: var(--paper); }
  .playlist-player { aspect-ratio: 16 / 9; margin-top: 1rem; overflow: hidden; border: 1px solid var(--rule-strong); background: #1d1b18; }
  .playlist-player iframe { width: 100%; height: 100%; border: 0; }
  .subject-note { margin-top: clamp(4rem, 8vw, 7rem); padding: clamp(1.5rem, 4vw, 3.5rem); border: 1px solid var(--rule-strong); background: var(--paper); }
  .subject-note h2 { max-width: 720px; margin-top: .6rem; font-size: clamp(2.2rem, 4vw, 4.25rem); }
  .subject-note > p:nth-of-type(2) { margin-top: 1.25rem; color: var(--ink-soft); font-family: var(--serif); font-size: 1.25rem; }
  .editorial-notice { display: grid; grid-template-columns: 130px 1fr; gap: 1.5rem; margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--rule); font-size: .78rem; }
  .editorial-notice strong { color: var(--accent); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; }
  .editorial-notice p { color: var(--ink-soft); }

  .reading-intro { padding: clamp(4rem, 8vw, 8rem) 0 clamp(3rem, 6vw, 5rem); }
  .reading-intro h1 { max-width: 1000px; margin-top: 1rem; font-size: clamp(3.4rem, 7vw, 7.5rem); }
  .reading-intro > p:last-child { margin-top: 1.5rem; color: var(--ink-soft); font-family: var(--serif); font-size: 1.35rem; }
  .reading-copy { min-width: 0; padding: 0 clamp(.5rem, 3vw, 2rem); }
  .reading-copy > section { position: relative; padding: 0 0 clamp(3.5rem, 7vw, 6rem); }
  .reading-copy > section + section { padding-top: clamp(2.5rem, 5vw, 4rem); border-top: 1px solid var(--rule-strong); }
  .reading-number { display: block; margin-bottom: 1rem; color: var(--accent); font: .68rem/1 var(--mono); }
  .reading-copy h2 { max-width: 780px; font-size: clamp(2rem, 4vw, 4.2rem); }
  .reading-copy section > p { margin-top: 1.3rem; color: var(--ink-soft); font-family: var(--serif); font-size: 1.22rem; line-height: 1.6; }
  .effective-date { margin-bottom: 2.5rem; color: var(--accent); font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
  .reading-aside { position: sticky; top: calc(var(--header-h) + 24px); padding: 1.3rem; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule-strong); }
  .reading-aside ol { margin-top: 1rem; padding: 0; list-style: none; }
  .reading-aside li { display: grid; grid-template-columns: 34px 1fr; gap: .5rem; padding: .75rem 0; border-top: 1px solid var(--rule); font-family: var(--serif); }
  .reading-aside li span { color: var(--accent); font: .61rem/1.8 var(--mono); }
  .reading-channel-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 1.5rem; border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
  .reading-channel-list a { display: flex; min-height: 86px; flex-direction: column; justify-content: center; padding: 1rem; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
  .reading-channel-list strong { font-family: var(--serif); font-size: 1.2rem; font-weight: 400; }
  .reading-channel-list span { color: var(--ink-soft); font-size: .68rem; }
  .reading-channel-list a:hover { background: var(--paper); }

  .contact-form { display: grid; gap: .55rem; margin-top: 2rem; padding: clamp(1.25rem, 4vw, 2.5rem); border: 1px solid var(--rule-strong); background: var(--paper); }
  .contact-form label { margin-top: .6rem; color: var(--ink); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
  .contact-form input,
  .contact-form select,
  .contact-form textarea { width: 100%; min-height: 48px; padding: .8rem .9rem; border: 1px solid var(--rule-strong); border-radius: 2px; background: #fffefa; color: var(--ink); }
  .contact-form textarea { min-height: 180px; resize: vertical; }
  .contact-form input:focus,
  .contact-form select:focus,
  .contact-form textarea:focus { border-color: var(--focus); box-shadow: 0 0 0 2px rgb(35 91 104 / 18%); outline: none; }
  .check-label { display: grid; grid-template-columns: 20px 1fr; align-items: start; gap: .7rem; margin: .8rem 0 !important; color: var(--ink-soft) !important; font-size: .75rem !important; font-weight: 500 !important; letter-spacing: 0 !important; line-height: 1.45; text-transform: none !important; }
  .check-label input { width: 18px; min-height: 18px; margin: 2px 0 0; accent-color: var(--accent); }
  .contact-form button { justify-self: start; cursor: pointer; }
  .form-note, .form-status { color: var(--ink-soft); font-size: .7rem !important; line-height: 1.5 !important; }
  .form-status:not(:empty) { padding: .75rem; border-left: 3px solid var(--accent); background: rgb(var(--accent-rgb) / 7%); }

  .site-footer {
    display: grid;
    grid-template-columns: 1.2fr 1fr auto;
    gap: 2rem;
    width: min(100% - 48px, 1720px);
    margin-inline: auto;
    padding: 3rem 0 2rem;
    border-top: 1px solid var(--rule-strong);
  }
  .footer-wordmark { font-family: var(--serif); font-size: clamp(2rem, 4vw, 4.25rem); line-height: .9; }
  .site-footer > p { color: var(--ink-soft); font-family: var(--serif); }
  .site-footer nav { display: flex; flex-wrap: wrap; align-content: start; justify-content: end; gap: .9rem 1.25rem; font-size: .72rem; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
  .site-footer nav a:hover { color: var(--accent); }
  .site-footer .copyright { grid-column: 1 / -1; padding-top: 1rem; border-top: 1px solid var(--rule); font-family: var(--sans); font-size: .66rem; }

  .not-found { width: min(100% - 48px, 1100px); margin-inline: auto; padding: clamp(6rem, 12vw, 12rem) 0; }
  .not-found h1 { max-width: 900px; margin-top: 1rem; font-size: clamp(3.2rem, 7vw, 7rem); }
  .not-found > p:nth-of-type(2) { margin-top: 1.5rem; color: var(--ink-soft); font-family: var(--serif); font-size: 1.3rem; }
}

@layer utilities {
  [hidden] { display: none !important; }
  .visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
  }
  @keyframes signal {
    0%, 100% { transform: scaleY(.45); opacity: .35; }
    50% { transform: scaleY(1); opacity: .85; }
  }

  @media (max-width: 1480px) {
    .studio-grid { grid-template-columns: 210px minmax(480px, 1fr) 310px; }
    .mega-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .screen-titleplate h2 { font-size: clamp(2rem, 4.6vw, 4.4rem); }
  }

  @media (max-width: 1180px) {
    .studio-grid { grid-template-columns: 200px minmax(0, 1fr); }
    .centre-stage { grid-column: 2; }
    .broadcast-desk { grid-column: 2; }
    .broadcast-sticky { position: static; display: grid; grid-template-columns: minmax(270px, .9fr) 1fr; gap: 1.25rem; align-items: start; }
    .desk-heading { grid-column: 1 / -1; }
    .schedule { margin-top: 0; }
    .desk-note { grid-column: 1 / -1; }
    .broadcast-screen { aspect-ratio: 16 / 9; }
    .reading-aside { position: static; }
    .reading-grid .reading-aside { grid-column: 2; }
  }

  @media (max-width: 900px) {
    :root { --header-h: 66px; }
    .header-inner, .home-intro, .channel-intro, .reading-intro, .studio-grid, .site-footer { width: min(100% - 32px, 100%); }
    .primary-nav > a:nth-of-type(1), .primary-nav > a:nth-of-type(2) { display: none; }
    .primary-nav > a, .mega-menu > summary { padding-inline: .65rem; }
    .mega-panel { grid-template-columns: 1fr; gap: 1.25rem; padding: 1.25rem; }
    .mega-heading > p:last-child { font-size: 1.15rem; }
    .studio-grid { grid-template-columns: minmax(0, 1fr); }
    .left-rail { display: none; }
    .centre-stage { grid-column: 1; grid-row: 1; }
    .broadcast-desk { grid-column: 1; grid-row: 2; }
    .mobile-catalogue {
      display: block;
      grid-column: 1;
      grid-row: 3;
      margin-top: 1rem;
      border-top: 2px solid var(--ink);
      border-bottom: 1px solid var(--rule-strong);
    }
    .mobile-catalogue > summary { display: flex; justify-content: space-between; min-height: 52px; align-items: center; cursor: pointer; font-size: .76rem; font-weight: 800; letter-spacing: .08em; list-style: none; text-transform: uppercase; }
    .mobile-catalogue > summary::-webkit-details-marker { display: none; }
    .mobile-channel-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); padding-bottom: 1rem; }
    .mobile-channel-list a { display: grid; grid-template-columns: 32px 1fr; min-height: 46px; align-items: center; padding: .5rem; border-top: 1px solid var(--rule); font-size: .75rem; }
    .mobile-channel-list a[aria-current="page"] { background: rgb(var(--accent-rgb) / 8%); }
    .channel-intro { grid-template-columns: 1fr; align-items: start; gap: 2rem; }
    .channel-statement { justify-self: start; }
    .feature-switcher { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .reading-grid .reading-copy, .reading-grid .reading-aside { grid-column: 1; }
    .reading-grid .reading-copy { grid-row: 1; padding: 0; }
    .reading-grid .reading-aside { grid-row: 2; }
    .reading-grid .mobile-catalogue { grid-row: 3; }
    .site-footer { grid-template-columns: 1fr 1fr; }
    .site-footer nav { grid-column: 1 / -1; justify-content: start; }
  }

  @media (max-width: 620px) {
    .wordmark { font-size: 1.3rem; }
    .primary-nav > a { display: none; }
    .home-intro h1 { font-size: clamp(3.2rem, 16vw, 5.2rem); }
    .home-intro { padding-block: 3.5rem; }
    .intro-actions { align-items: stretch; flex-direction: column; }
    .intro-actions a { width: 100%; }
    .screen-frame { aspect-ratio: 4 / 3; }
    .screen-titleplate { width: 95%; }
    .screen-titleplate h2 { font-size: clamp(2rem, 9vw, 3rem); }
    .programme-caption { grid-template-columns: 1fr; gap: .5rem; }
    .programme-caption .text-action { justify-self: start; }
    .feature-switcher { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .section-heading { grid-template-columns: 1fr; align-items: start; }
    .section-heading > p { justify-self: start; }
    .channel-grid, .programme-grid, .series-grid, .reading-channel-list { grid-template-columns: 1fr; }
    .broadcast-sticky { display: block; padding: 1rem; }
    .schedule { margin-top: 1.4rem; }
    .broadcast-screen { aspect-ratio: 4 / 3; }
    .mobile-channel-list { grid-template-columns: 1fr; }
    .channel-intro { padding-block: 3.5rem; }
    .channel-intro h1 { font-size: clamp(3.7rem, 20vw, 6rem); }
    .channel-statement { padding-left: 1rem; }
    .editorial-notice { grid-template-columns: 1fr; gap: .5rem; }
    .site-footer { grid-template-columns: 1fr; gap: 1.25rem; }
    .site-footer nav, .site-footer .copyright { grid-column: 1; }
    .contact-form { padding: 1rem; }
  }

  @media (hover: hover) {
    .mega-channel, .channel-card a, .programme-art { transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease; }
  }

  @media (max-height: 820px) and (min-width: 901px) {
    .rail-sticky, .broadcast-sticky, .reading-aside { position: static; }
  }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  }

  @media print {
    .site-header, .left-rail, .mobile-catalogue, .broadcast-desk, .site-footer, .intro-actions, .feature-switcher { display: none !important; }
    body { background: #fff; }
    .studio-grid { display: block; width: 100%; }
    .screen-frame { box-shadow: none; break-inside: avoid; }
  }
}