/* ============================================================
   CARRIAGE BELL - "Carbon Ribbon"
   Carbon black on cream paper, ribbon red, bell brass.
   Newsreader display against Hanken Grotesk body.
   ============================================================ */
:root {
  --font-display: 'Newsreader', Georgia, serif;
  --font-body: 'Hanken Grotesk', system-ui, sans-serif;
  --paper: oklch(0.965 0.018 85);
  --paper-2: oklch(0.94 0.022 85);
  --ink: oklch(0.17 0.008 60);
  --ink-soft: oklch(0.38 0.012 60);
  --line: oklch(0.82 0.02 80);
  --card: oklch(0.975 0.014 85);
  --red: oklch(0.52 0.19 25);
  --red-deep: oklch(0.42 0.16 25);
  --brass: oklch(0.7 0.11 80);
  --brass-deep: oklch(0.55 0.1 75);
  --green: oklch(0.55 0.09 150);
  --sp-1: 0.5rem; --sp-2: 1rem; --sp-3: 1.5rem; --sp-4: 2rem; --sp-5: 3rem; --sp-6: 4.5rem;
  --fs-0: 1rem; --fs-1: 1.125rem; --fs-2: 1.375rem; --fs-3: 1.75rem; --fs-4: 2.375rem; --fs-5: 3.25rem; --fs-6: 4.5rem;
  --rad-s: 4px; --rad-m: 10px;
  --shadow: 0 2px 10px oklch(0.2 0.02 60 / 0.08);
  --dur: 200ms;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
[data-theme="late-shift"] {
  --paper: oklch(0.16 0.012 60);
  --paper-2: oklch(0.2 0.014 60);
  --ink: oklch(0.93 0.015 85);
  --ink-soft: oklch(0.68 0.02 80);
  --line: oklch(0.32 0.014 60);
  --card: oklch(0.23 0.014 60);
  --red: oklch(0.66 0.17 25);
  --brass: oklch(0.78 0.1 80);
  --green: oklch(0.68 0.09 150);
  --shadow: 0 2px 10px oklch(0 0 0 / 0.4);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-weight: 380;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: var(--fs-0);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 var(--sp-3); }
main { display: block; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.12; letter-spacing: -0.01em; }
h1 { font-size: var(--fs-6); font-variation-settings: 'opsz' 60; }
h2 { font-size: var(--fs-4); }
h3 { font-size: var(--fs-2); }
p { max-width: 62ch; }
a { color: inherit; text-decoration-color: var(--red); text-underline-offset: 3px; }
a:hover { color: var(--red-deep); }
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; border-radius: 2px; }
.mono { font-variant-numeric: tabular-nums; letter-spacing: 0.04em; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper); padding: 0.6rem 1rem; z-index: 99; }
.skip-link:focus { left: 0; }
/* header */
.site-head { position: sticky; top: 0; z-index: 50; background: oklch(from var(--paper) l c h / 0.88); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); min-height: 64px; }
.brand { font-family: var(--font-display); font-size: 1.35rem; font-style: italic; text-decoration: none; display: flex; align-items: center; gap: 0.5rem; }
.brand .bell { width: 22px; height: 22px; border-radius: 50% 50% 40% 40%; background: var(--brass); display: inline-block; position: relative; }
.brand .bell::after { content: ''; position: absolute; bottom: -4px; left: 50%; transform: translateX(-50%); width: 8px; height: 3px; background: var(--ink); border-radius: 2px; }
.site-nav { display: flex; gap: var(--sp-3); align-items: center; }
.site-nav a { text-decoration: none; font-size: 0.92rem; color: var(--ink-soft); padding: 0.3rem 0; border-bottom: 2px solid transparent; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--red); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: var(--rad-s); padding: 0.4rem 0.7rem; font: inherit; cursor: pointer; }
@media (max-width: 880px) {
  .nav-toggle { display: inline-block; }
  .site-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--paper); border-bottom: 1px solid var(--line); flex-direction: column; padding: var(--sp-3); gap: var(--sp-2); align-items: flex-start; }
  .site-nav.open { display: flex; }
}
/* hero */
.hero { padding: var(--sp-6) 0 var(--sp-5); position: relative; overflow: hidden; }
.hero h1 { font-style: italic; font-variation-settings: 'opsz' 72; max-width: 14ch; }
.hero .kicker { color: var(--red-deep); letter-spacing: 0.18em; text-transform: uppercase; font-size: 0.8rem; font-weight: 600; margin-bottom: var(--sp-2); }
.hero .lede-p { font-size: var(--fs-2); max-width: 46ch; margin-top: var(--sp-3); }
/* carriage return bar */
.cr-bar { height: 3px; background: var(--red); width: 42%; margin-top: var(--sp-4); position: relative; }
.cr-bar::after { content: ''; position: absolute; right: -10px; top: -6px; width: 14px; height: 14px; border-radius: 50%; background: var(--brass); }
.carriage-live .cr-bar { animation: carriage 5.2s var(--ease) infinite; }
@keyframes carriage { 0% { transform: translateX(0); } 62% { transform: translateX(148%); } 70% { transform: translateX(148%); } 74% { transform: translateX(0); } 100% { transform: translateX(0); } }
@media (prefers-reduced-motion: reduce) { .carriage-live .cr-bar { animation: none; } }
/* sections */
.section { padding: var(--sp-6) 0; }
.section.alt { background: var(--paper-2); }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: var(--sp-2); margin-bottom: var(--sp-4); flex-wrap: wrap; }
.grid { display: grid; gap: var(--sp-3); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 960px) { .cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .cols-2, .cols-3 { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--rad-m); padding: var(--sp-4); box-shadow: var(--shadow); transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur); }
a.card { text-decoration: none; display: block; }
a.card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px oklch(0.2 0.02 60 / 0.14); border-color: var(--brass-deep); }
.card .card-kicker { display: block; font-size: 0.75rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--red-deep); font-weight: 600; margin-bottom: 0.6rem; }
.card .card-meta { display: flex; justify-content: space-between; margin-top: var(--sp-2); font-size: 0.85rem; color: var(--ink-soft); }
/* buttons + states */
.btn { display: inline-block; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; border-radius: var(--rad-s); padding: 0.7rem 1.4rem; border: 1px solid transparent; transition: transform 120ms var(--ease), box-shadow var(--dur), background var(--dur); }
.btn-primary { background: var(--red); color: oklch(0.97 0.01 85); }
.btn-primary:hover { background: var(--red-deep); transform: translateY(1px); box-shadow: 0 3px 0 oklch(0.3 0.1 25); }
.btn-primary:active { transform: translateY(3px); box-shadow: none; }
.btn-ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn[disabled], .btn.loading { opacity: 0.6; cursor: wait; }
.btn.loading::after { content: ''; display: inline-block; width: 0.9em; height: 0.9em; margin-left: 0.5em; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin 0.8s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(1turn); } }
/* forms */
.field { margin-bottom: var(--sp-3); }
.field label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.3rem; }
.field input, .field select, .field textarea { width: 100%; font: inherit; padding: 0.65rem 0.8rem; border: 1px solid var(--line); border-radius: var(--rad-s); background: var(--paper); color: var(--ink); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--red); outline: 2px solid var(--red); outline-offset: 1px; }
.field .err { display: none; color: var(--red-deep); font-size: 0.85rem; margin-top: 0.25rem; }
.field.invalid .err { display: block; }
.field.invalid input, .field.invalid textarea { border-color: var(--red-deep); }
.form-note { font-size: 0.85rem; color: var(--ink-soft); }
.toast { position: fixed; bottom: 1.2rem; left: 50%; transform: translate(-50%, 8px); background: var(--ink); color: var(--paper); padding: 0.7rem 1.2rem; border-radius: var(--rad-m); opacity: 0; pointer-events: none; transition: opacity var(--dur), transform var(--dur); z-index: 90; font-size: 0.92rem; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
/* table */
.sched { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: var(--rad-m); overflow: hidden; }
.sched th { text-align: left; font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft); padding: 0.7rem 1rem; border-bottom: 1px solid var(--line); background: var(--paper-2); }
.sched td { padding: 0.7rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.sched tr:last-child td { border-bottom: none; }
.sched tbody tr { transition: background var(--dur); }
.sched tbody tr:hover { background: oklch(from var(--red) l c h / 0.06); }
/* tags + states */
.tag { display: inline-block; border: 1px solid var(--line); border-radius: 999px; padding: 0.15rem 0.7rem; font-size: 0.78rem; color: var(--ink-soft); background: var(--card); }
.tag.hot { border-color: var(--red); color: var(--red-deep); font-weight: 600; }
.state-box { border: 1px dashed var(--line); border-radius: var(--rad-m); padding: var(--sp-3); color: var(--ink-soft); background: var(--paper-2); }
.stat-row { display: flex; gap: var(--sp-4); flex-wrap: wrap; margin-bottom: var(--sp-3); }
.stat b { display: block; font-family: var(--font-display); font-size: var(--fs-4); color: var(--red-deep); }
.stat span { font-size: 0.85rem; color: var(--ink-soft); }
/* page hero for inner pages */
.page-hero { padding: var(--sp-5) 0 var(--sp-4); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, var(--paper-2), var(--paper)); }
.crumbs { font-size: 0.85rem; color: var(--ink-soft); margin-bottom: var(--sp-2); }
.lede-p { font-size: var(--fs-2); line-height: 1.45; }
/* footer */
.site-foot { border-top: 1px solid var(--line); padding: var(--sp-5) 0; background: var(--paper-2); }
.site-foot .cols { display: flex; justify-content: space-between; gap: var(--sp-4); flex-wrap: wrap; }
.site-foot a { color: var(--ink-soft); text-decoration: none; font-size: 0.9rem; display: block; padding: 0.15rem 0; }
.site-foot a:hover { color: var(--red-deep); text-decoration: underline; }
/* progress */
.read-progress { position: fixed; top: 0; left: 0; height: 3px; background: var(--red); width: 0; z-index: 80; transition: width 80ms linear; }
/* reveals */
.rv { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); transition-delay: calc(var(--d, 0) * 70ms); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } .carriage-live .cr-bar { animation: none; } }
/* typed line reveal */
.type-line { clip-path: inset(0 100% 0 0); transition: clip-path 1.1s steps(24, end); }
.type-line.in { clip-path: inset(0 0 0 0); }
@media (prefers-reduced-motion: reduce) { .type-line { clip-path: none; transition: none; } }
/* key caps */
.kbd { display: inline-block; border: 1px solid var(--line); border-bottom-width: 3px; border-radius: 6px; padding: 0.1rem 0.55rem; font-family: var(--font-display); background: var(--card); }
a .kbd, .kbd-link:hover .kbd { background: var(--brass); border-color: var(--brass-deep); }
.bell-ring { transform-origin: top center; animation: ring 1.6s var(--ease) infinite; }
@keyframes ring { 0%, 100% { transform: rotate(0); } 12% { transform: rotate(9deg); } 24% { transform: rotate(-7deg); } 36% { transform: rotate(4deg); } 48% { transform: rotate(0); } }
@media (prefers-reduced-motion: reduce) { .bell-ring { animation: none; } }
blockquote { font-family: var(--font-display); font-style: italic; font-size: var(--fs-3); border-left: 3px solid var(--red); padding-left: var(--sp-3); margin: var(--sp-3) 0; max-width: 40ch; }
.mt-0 { margin-top: 0; }