/* ============================================================
   NIGHTJAR RADIO - main stylesheet
   Identity: "Broadcast Amber" - valve-glow amber on midnight
   receiver ink, cream paper panels, on-air red. Fraunces display
   against Outfit body. Motion: tuning-dial needle sweep, on-air
   pulse, staggered signal reveals. Dark theme: after-hours.
   ============================================================ */
:root {
  /* ---- OKLCH color tokens ---- */
  --nj-paper: oklch(0.955 0.018 84);        /* receiver cream */
  --nj-paper-2: oklch(0.92 0.024 84);       /* deeper cream panel */
  --nj-ink: oklch(0.235 0.035 265);         /* broadcast navy ink */
  --nj-ink-soft: oklch(0.42 0.03 265);
  --nj-amber: oklch(0.78 0.145 78);         /* valve amber */
  --nj-amber-deep: oklch(0.62 0.13 65);
  --nj-red: oklch(0.58 0.19 27);            /* on-air red */
  --nj-teal: oklch(0.52 0.07 205);          /* dial teal */
  --nj-line: oklch(0.80 0.03 84);
  --nj-card: oklch(0.985 0.01 84);
  --nj-focus: oklch(0.55 0.15 250);
  /* ---- spacing scale ---- */
  --sp-1: 0.25rem; --sp-2: 0.5rem; --sp-3: 1rem; --sp-4: 1.5rem;
  --sp-5: 2.5rem; --sp-6: 4rem; --sp-7: 6.5rem;
  /* ---- type scale (modular, 1.25 base) ---- */
  --fs-0: 1rem; --fs-1: 1.125rem; --fs-2: 1.4rem; --fs-3: 1.75rem;
  --fs-4: 2.2rem; --fs-5: 2.8rem; --fs-6: 3.6rem; --fs-7: 4.6rem;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Outfit', 'Helvetica Neue', Arial, sans-serif;
  --rad-s: 4px; --rad-m: 10px;
  --shadow: 0 2px 6px oklch(0.235 0.035 265 / 0.08), 0 14px 40px oklch(0.235 0.035 265 / 0.10);
  --ease-sweep: cubic-bezier(0.22, 1, 0.36, 1);
  --maxw: 72rem;
}
[data-theme="after-hours"] {
  --nj-paper: oklch(0.155 0.028 265);
  --nj-paper-2: oklch(0.19 0.032 265);
  --nj-ink: oklch(0.93 0.02 84);
  --nj-ink-soft: oklch(0.72 0.03 84);
  --nj-amber: oklch(0.80 0.14 78);
  --nj-amber-deep: oklch(0.70 0.13 70);
  --nj-line: oklch(0.32 0.03 265);
  --nj-card: oklch(0.21 0.032 265);
  --nj-focus: oklch(0.75 0.12 200);
  --shadow: 0 2px 6px oklch(0 0 0 / 0.3), 0 14px 40px oklch(0 0 0 / 0.35);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}
body {
  margin: 0; background: var(--nj-paper); color: var(--nj-ink);
  font-family: var(--font-body); font-size: var(--fs-1); line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background 0.5s var(--ease-sweep), color 0.5s var(--ease-sweep);
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 560; line-height: 1.08; letter-spacing: -0.015em; margin: 0 0 var(--sp-3); }
h1 { font-size: var(--fs-6); }
h2 { font-size: var(--fs-4); }
h3 { font-size: var(--fs-2); }
p { margin: 0 0 var(--sp-3); }
.skip-link {
  position: absolute; left: -999px; top: var(--sp-2); background: var(--nj-ink); color: var(--nj-paper);
  padding: var(--sp-2) var(--sp-3); border-radius: var(--rad-s); z-index: 100;
}
.skip-link:focus { left: var(--sp-2); }
:focus-visible { outline: 2px solid var(--nj-focus); outline-offset: 3px; border-radius: 2px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--sp-4); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
/* ---------- progress bar: carrier wave ---------- */
.progress { position: fixed; top: 0; left: 0; height: 3px; width: 100%; z-index: 60; pointer-events: none; }
.progress span { display: block; height: 100%; width: 0%; background: linear-gradient(90deg, var(--nj-amber), var(--nj-red)); transition: width 0.15s linear; }
/* ---------- header ---------- */
.masthead { position: sticky; top: 0; z-index: 50; background: oklch(from var(--nj-paper) l c h / 0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--nj-line); }
.masthead-inner { display: flex; align-items: center; gap: var(--sp-4); padding: var(--sp-3) 0; }
.brand { display: flex; align-items: center; gap: var(--sp-2); text-decoration: none; font-family: var(--font-display); font-weight: 640; font-size: 1.3rem; letter-spacing: 0.01em; }
.brand .dial { width: 30px; height: 30px; border-radius: 50%; border: 2px solid var(--nj-amber); position: relative; }
.brand .dial::after { content: ''; position: absolute; left: 50%; top: 50%; width: 2px; height: 12px; background: var(--nj-amber); transform-origin: 50% 0%; transform: rotate(215deg); }
.onair { display: inline-flex; align-items: center; gap: 0.45em; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--nj-red); border: 1px solid var(--nj-red); border-radius: 999px; padding: 0.2em 0.8em; }
.onair i { width: 8px; height: 8px; border-radius: 50%; background: var(--nj-red); animation: airpulse 1.6s ease-in-out infinite; }
@keyframes airpulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.25; transform: scale(0.72); } }
.nav { margin-left: auto; display: flex; gap: var(--sp-3); align-items: center; }
.nav a { text-decoration: none; font-size: 0.95rem; color: var(--nj-ink-soft); padding: 0.3rem 0.55rem; border-radius: var(--rad-s); position: relative; }
.nav a::after { content: ''; position: absolute; left: 0.55rem; right: 0.55rem; bottom: 0.1rem; height: 1.5px; background: var(--nj-amber); transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease-sweep); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--nj-ink); }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--nj-line); border-radius: var(--rad-s); padding: 0.4rem 0.6rem; color: var(--nj-ink); font: inherit; cursor: pointer; }
.theme-btn { background: none; border: 1px solid var(--nj-line); border-radius: 999px; padding: 0.35rem 0.9rem; font: inherit; font-size: 0.85rem; cursor: pointer; color: var(--nj-ink); transition: border-color 0.25s, background 0.25s; }
.theme-btn:hover { border-color: var(--nj-amber); background: oklch(from var(--nj-amber) l c h / 0.12); }
@media (max-width: 860px) {
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--nj-paper); border-bottom: 1px solid var(--nj-line); flex-direction: column; align-items: flex-start; padding: var(--sp-3) var(--sp-4) var(--sp-4); gap: var(--sp-2); }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
}
/* ---------- hero ---------- */
.hero { position: relative; padding: var(--sp-7) 0 var(--sp-6); overflow: hidden; }
.hero .kicker { font-size: 0.8rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--nj-amber-deep); margin-bottom: var(--sp-3); }
.hero h1 { max-width: 18ch; }
.hero .lede { max-width: 52ch; font-size: var(--fs-2); color: var(--nj-ink-soft); }
/* tuning dial graphic */
.tuning { margin-top: var(--sp-5); background: var(--nj-card); border: 1px solid var(--nj-line); border-radius: var(--rad-m); padding: var(--sp-4); box-shadow: var(--shadow); }
.tuning-scale { position: relative; height: 74px; }
.tuning-scale .rail { position: absolute; left: 0; right: 0; top: 40px; height: 2px; background: var(--nj-line); }
.tuning-scale .tick { position: absolute; top: 32px; width: 1px; height: 18px; background: var(--nj-ink-soft); }
.tuning-scale .tick.major { top: 26px; height: 30px; background: var(--nj-ink); }
.tuning-scale .tick-label { position: absolute; top: 2px; font-size: 0.68rem; color: var(--nj-ink-soft); transform: translateX(-50%); }
.needle { position: absolute; left: 0%; top: 10px; width: 2px; height: 54px; background: var(--nj-red); transform: translateX(-1px); transition: left 1.4s var(--ease-sweep); }
.needle::after { content: ''; position: absolute; bottom: -6px; left: -4px; width: 10px; height: 10px; border-radius: 50%; background: var(--nj-red); }
.station-readout { display: flex; justify-content: space-between; font-variant-numeric: tabular-nums; font-size: 0.8rem; color: var(--nj-ink-soft); margin-top: var(--sp-2); }
/* ---------- equalizer bars ---------- */
.eq { display: inline-flex; align-items: flex-end; gap: 3px; height: 18px; }
.eq i { width: 3px; background: var(--nj-amber); animation: eqbar 1.1s ease-in-out infinite; }
.eq i:nth-child(2) { animation-delay: 0.12s; } .eq i:nth-child(3) { animation-delay: 0.24s; }
.eq i:nth-child(4) { animation-delay: 0.36s; } .eq i:nth-child(5) { animation-delay: 0.48s; }
@keyframes eqbar { 0%, 100% { height: 30%; } 50% { height: 100%; } }
/* ---------- cards ---------- */
.grid { display: grid; gap: var(--sp-4); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 960px) { .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; } }
.card { background: var(--nj-card); border: 1px solid var(--nj-line); border-radius: var(--rad-m); padding: var(--sp-4); display: flex; flex-direction: column; gap: var(--sp-2); text-decoration: none; color: inherit; position: relative; overflow: hidden; transition: transform 0.4s var(--ease-sweep), box-shadow 0.4s var(--ease-sweep), border-color 0.3s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--nj-amber); }
.card .card-kicker { font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--nj-amber-deep); }
.card h3 { margin: 0; }
.card p { margin: 0; color: var(--nj-ink-soft); font-size: 0.98rem; flex-grow: 1; }
.card .card-meta { font-size: 0.8rem; color: var(--nj-ink-soft); display: flex; gap: var(--sp-3); border-top: 1px solid var(--nj-line); padding-top: var(--sp-2); }
.card .wave { position: absolute; right: -20px; bottom: -20px; opacity: 0.12; pointer-events: none; transition: opacity 0.3s; }
.card:hover .wave { opacity: 0.25; }
/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none; font-weight: 600; font-size: 1rem; padding: 0.7rem 1.4rem; border-radius: 999px; border: 1px solid transparent; cursor: pointer; font-family: var(--font-body); transition: transform 0.25s var(--ease-sweep), background 0.25s, border-color 0.25s, color 0.25s; }
.btn-primary { background: var(--nj-amber-deep); color: oklch(0.14 0.02 265); }
.btn-primary:hover { background: var(--nj-amber); transform: translateY(-2px); }
.btn-ghost { border-color: var(--nj-ink); color: var(--nj-ink); background: transparent; }
.btn-ghost:hover { background: var(--nj-ink); color: var(--nj-paper); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn[disabled], .btn.loading { opacity: 0.55; cursor: wait; }
/* ---------- sections ---------- */
.section { padding: var(--sp-6) 0; }
.section.alt { background: var(--nj-paper-2); border-top: 1px solid var(--nj-line); border-bottom: 1px solid var(--nj-line); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--sp-3); margin-bottom: var(--sp-4); }
.section-head a { font-size: 0.9rem; color: var(--nj-amber-deep); text-decoration: none; }
.section-head a:hover { text-decoration: underline; }
/* ---------- schedule table ---------- */
.sched { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.sched th, .sched td { text-align: left; padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--nj-line); font-size: 0.95rem; }
.sched th { font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--nj-ink-soft); }
.sched tr:hover td { background: oklch(from var(--nj-amber) l c h / 0.08); }
.sched .live td { color: var(--nj-red); font-weight: 600; }
/* ---------- page hero (interior) ---------- */
.page-hero { padding: var(--sp-6) 0 var(--sp-5); border-bottom: 1px solid var(--nj-line); background: linear-gradient(180deg, oklch(from var(--nj-amber) l c h / 0.07), transparent); }
.page-hero h1 { max-width: 20ch; }
.crumbs { font-size: 0.85rem; color: var(--nj-ink-soft); margin-bottom: var(--sp-3); }
.crumbs a { color: inherit; }
/* ---------- reveal animations ---------- */
.rv { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease-sweep), transform 0.8s var(--ease-sweep); }
.rv.in { opacity: 1; transform: none; }
.rv[data-d="1"] { transition-delay: 0.08s; } .rv[data-d="2"] { transition-delay: 0.16s; }
.rv[data-d="3"] { transition-delay: 0.24s; } .rv[data-d="4"] { transition-delay: 0.32s; }
.rv[data-d="5"] { transition-delay: 0.4s; } .rv[data-d="6"] { transition-delay: 0.48s; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; } .needle { transition: none; } }
/* ---------- forms ---------- */
.field { display: flex; flex-direction: column; gap: 0.3rem; margin-bottom: var(--sp-3); }
.field label { font-size: 0.85rem; font-weight: 600; }
.field input, .field select, .field textarea { font: inherit; padding: 0.65rem 0.8rem; border: 1px solid var(--nj-line); border-radius: var(--rad-s); background: var(--nj-card); color: var(--nj-ink); transition: border-color 0.25s, box-shadow 0.25s; }
.field input:hover, .field textarea:hover { border-color: var(--nj-ink-soft); }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--nj-amber-deep); box-shadow: 0 0 0 3px oklch(from var(--nj-amber) l c h / 0.25); }
.field .err { color: var(--nj-red); font-size: 0.82rem; display: none; }
.field.invalid input, .field.invalid textarea { border-color: var(--nj-red); }
.field.invalid .err { display: block; }
.form-note { font-size: 0.82rem; color: var(--nj-ink-soft); border-left: 3px solid var(--nj-amber); padding-left: 0.7rem; }
/* ---------- toast ---------- */
.toast { position: fixed; bottom: var(--sp-4); left: 50%; transform: translate(-50%, 20px); background: var(--nj-ink); color: var(--nj-paper); padding: 0.7rem 1.2rem; border-radius: 999px; font-size: 0.9rem; opacity: 0; pointer-events: none; transition: opacity 0.35s, transform 0.35s var(--ease-sweep); z-index: 90; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
/* ---------- footer ---------- */
.colophon { border-top: 1px solid var(--nj-line); margin-top: var(--sp-6); padding: var(--sp-5) 0 var(--sp-6); color: var(--nj-ink-soft); font-size: 0.9rem; }
.colophon .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--sp-4); }
@media (max-width: 760px) { .colophon .cols { grid-template-columns: 1fr; } }
.colophon a { color: inherit; text-decoration: none; }
.colophon a:hover { color: var(--nj-ink); text-decoration: underline; }
.colophon .freq { font-variant-numeric: tabular-nums; color: var(--nj-amber-deep); }
/* ---------- states: empty / error / loading ---------- */
.state-box { border: 1px dashed var(--nj-line); border-radius: var(--rad-m); padding: var(--sp-5); text-align: center; color: var(--nj-ink-soft); }
.state-box strong { color: var(--nj-ink); font-family: var(--font-display); }
.skeleton { background: linear-gradient(90deg, var(--nj-paper-2) 25%, var(--nj-card) 50%, var(--nj-paper-2) 75%); background-size: 200% 100%; animation: sk 1.2s infinite linear; border-radius: var(--rad-s); height: 1.2em; }
@keyframes sk { to { background-position: -200% 0; } }
/* ---------- utility ---------- */
.mono { font-variant-numeric: tabular-nums; }
.mt-0 { margin-top: 0; } .center { text-align: center; }
.tag { display: inline-block; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; border: 1px solid var(--nj-line); border-radius: 999px; padding: 0.15em 0.7em; color: var(--nj-ink-soft); }
.tag.hot { border-color: var(--nj-red); color: var(--nj-red); }
.lede-p { font-size: var(--fs-2); color: var(--nj-ink-soft); max-width: 56ch; }
blockquote { margin: 0 0 var(--sp-3); padding-left: var(--sp-4); border-left: 3px solid var(--nj-amber); font-family: var(--font-display); font-size: var(--fs-2); font-style: italic; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-3); text-align: center; }
@media (max-width: 700px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }
.stat-row .stat { border: 1px solid var(--nj-line); border-radius: var(--rad-m); padding: var(--sp-3); background: var(--nj-card); }
.stat-row .stat b { display: block; font-family: var(--font-display); font-size: var(--fs-3); }
.stat-row .stat span { font-size: 0.8rem; color: var(--nj-ink-soft); }
/* ---------- depth pass: transcript, letters, marquee, wave dividers ---------- */
.transcript { background: var(--nj-card); border: 1px solid var(--nj-line); border-left: 4px solid var(--nj-amber); border-radius: var(--rad-s); padding: var(--sp-3) var(--sp-4); font-family: var(--font-display); font-size: var(--fs-1); font-style: italic; }
.transcript .speaker { font-family: var(--font-body); font-style: normal; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--nj-amber-deep); display: block; margin-bottom: 0.3rem; }
.transcript + .transcript { margin-top: var(--sp-2); }
.letter { position: relative; background: var(--nj-card); border: 1px solid var(--nj-line); border-radius: var(--rad-m); padding: var(--sp-4); box-shadow: var(--shadow); }
.letter::before { content: ''; position: absolute; top: -1px; left: 50%; transform: translateX(-50%); width: 90px; height: 8px; background: var(--nj-red); opacity: 0.85; border-radius: 0 0 6px 6px; }
.letter .salutation { font-family: var(--font-display); font-style: italic; font-size: var(--fs-2); margin-bottom: var(--sp-2); }
.letter .seal { display: inline-block; width: 34px; height: 34px; border-radius: 50%; background: var(--nj-red); color: var(--nj-paper); font-family: var(--font-display); font-weight: 700; line-height: 34px; text-align: center; margin-top: var(--sp-2); }
.wave-divider { display: block; width: 120px; margin: var(--sp-4) auto; color: var(--nj-amber); }
.freq-marquee { overflow: hidden; border-top: 1px solid var(--nj-line); border-bottom: 1px solid var(--nj-line); background: var(--nj-paper-2); }
.freq-marquee .track { display: inline-flex; gap: var(--sp-5); padding: var(--sp-2) 0; white-space: nowrap; animation: drift 28s linear infinite; font-variant-numeric: tabular-nums; letter-spacing: 0.12em; text-transform: uppercase; font-size: 0.78rem; color: var(--nj-ink-soft); }
@keyframes drift { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .freq-marquee .track { animation: none; } }
.kettle-note { display: flex; gap: var(--sp-3); align-items: center; border: 1px solid var(--nj-line); border-radius: var(--rad-m); padding: var(--sp-3); background: oklch(from var(--nj-amber) l c h / 0.10); }
.kettle-note .steam { font-size: 1.4rem; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid.cols-4 { grid-template-columns: 1fr; } }
.dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.4rem 1.2rem; margin: 0; }
.dl dt { font-weight: 600; font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--nj-ink-soft); }
.dl dd { margin: 0; }
.pull-quote { font-family: var(--font-display); font-size: var(--fs-4); line-height: 1.2; font-style: italic; text-align: center; margin: var(--sp-5) auto; max-width: 26ch; }
.pull-quote::before, .pull-quote::after { content: '~'; color: var(--nj-amber); display: block; font-size: var(--fs-2); }
.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.85rem; }
.badge-count { display: inline-block; min-width: 1.8em; text-align: center; background: var(--nj-amber-deep); color: oklch(0.14 0.02 265); border-radius: 999px; font-size: 0.72rem; font-weight: 700; padding: 0.1em 0.5em; vertical-align: middle; }
.chart-bars { display: flex; align-items: flex-end; gap: 6px; height: 90px; padding: var(--sp-2) 0; }
.chart-bars i { flex: 1; background: linear-gradient(180deg, var(--nj-amber), var(--nj-amber-deep)); border-radius: 3px 3px 0 0; min-height: 6%; }
.footnote { font-size: 0.85rem; color: var(--nj-ink-soft); border-top: 1px solid var(--nj-line); padding-top: var(--sp-2); }
.widow-fix { text-wrap: balance; }