/* tapebooth.com: the extension's cassette J-card world at page scale.
   Tokens are copied from src/ui/tokens.css (same names and values) so the site and the product
   read as one thing: cream label paper, warm charcoal ink, one tape red that only ever means
   "record", a cool blue focus ring. The book serif is the label-writing voice; the UI sans does
   the reading. The recurring motif is the J-card itself: ruled lines, sides A and B, the spine.
   System fonts only. No scripts, no trackers. Logical properties throughout. */

:root {
  color-scheme: light dark;

  --accent: #b02a1f;
  --accent-ink: #ffffff;
  --bg: #f3ead8;
  --surface: #fbf6ea;
  --sunk: #ebe0ca;
  --line: #ddd0b8;
  --control: #8a7966;
  --text: #2b2420;
  --muted: #5d5046;
  --accent-fill: var(--accent);
  --accent-fill-ink: var(--accent-ink);
  --accent-text: #9c241a;
  --accent-wash: color-mix(in oklab, var(--accent) 9%, var(--bg));
  --accent-line: color-mix(in oklab, var(--accent) 38%, var(--bg));
  --focus: #1f5f8b;
  --lamp: #d83a2c;
  --shadow: #3a2a20;
  --rule: color-mix(in oklab, var(--accent) 22%, var(--surface));

  /* The booth with the lights down: the privacy band, always dark. */
  --booth: #1b1714;
  --booth-surface: #25201b;
  --booth-line: #3a322a;
  --booth-text: #f2e9da;
  --booth-muted: #c3b5a2;
  --booth-link: #ff9d8f;

  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  --font-voice: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", "URW Palladio L", Charter,
    "Noto Serif", Georgia, serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.25rem;
  --step-2: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  --step-3: clamp(1.875rem, 1.3rem + 2.4vw, 2.875rem);
  --step-4: clamp(2.375rem, 1.3rem + 4.4vw, 4.25rem);

  --gutter: clamp(16px, 4vw, 48px);
  --wide: 1160px;
  --measure: 68ch;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-pill: 999px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --lift: 0 1px 0 color-mix(in oklab, var(--shadow) 8%, transparent),
    0 24px 48px -28px color-mix(in oklab, var(--shadow) 60%, transparent);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1714;
    --surface: #25201b;
    --sunk: #14110e;
    --line: #3a322a;
    --control: #7d6e60;
    --text: #f2e9da;
    --muted: #c3b5a2;
    --accent-fill: #c93a2d;
    --accent-fill-ink: #ffffff;
    --accent-text: #ff9d8f;
    --accent-wash: color-mix(in oklab, var(--accent) 20%, var(--bg));
    --accent-line: color-mix(in oklab, #ff9d8f 45%, var(--bg));
    --focus: #8cc4ec;
    --lamp: #ff5a4c;
    --shadow: #000000;
    --rule: color-mix(in oklab, #ff9d8f 16%, var(--surface));
    --booth: #0e0b09;
    --booth-surface: #1d1915;
    --booth-line: #332b24;
  }
}

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

html { background: var(--bg); -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 var(--step-0)/1.6 var(--font-ui);
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  accent-color: var(--accent-fill);
  caret-color: var(--accent-text);
  scrollbar-color: var(--control) transparent;
}

::selection { background: var(--accent-fill); color: var(--accent-fill-ink); }

img, svg { display: block; max-inline-size: 100%; block-size: auto; }

a { color: var(--accent-text); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: var(--r-sm); }

h1, h2, h3 {
  font-family: var(--font-voice);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.012em;
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: var(--step-4); letter-spacing: -0.022em; }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); line-height: 1.25; }
p { margin: 0; text-wrap: pretty; }
strong { font-weight: 650; }
code { font-size: 0.92em; background: var(--sunk); padding: 0.1em 0.35em; border-radius: 4px; }
kbd {
  font: 600 0.85em/1 var(--font-ui);
  padding: 0.2em 0.45em;
  border: 1px solid var(--control);
  border-block-end-width: 2px;
  border-radius: 4px;
  background: var(--surface);
  white-space: nowrap;
}

.shell { inline-size: min(100% - 2 * var(--gutter), var(--wide)); margin-inline: auto; }

.skip-link {
  position: absolute;
  inset-inline-start: 12px;
  inset-block-start: -60px;
  z-index: 10;
  padding: 10px 16px;
  border-radius: var(--r-sm);
  background: var(--text);
  color: var(--bg);
}
.skip-link:focus { inset-block-start: 12px; }

/* Buttons: the red record key, and a quiet outlined one. */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-block-size: 44px;
  padding: 10px 22px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  background: var(--accent-fill);
  color: var(--accent-fill-ink);
  font: 600 var(--step-0)/1.2 var(--font-ui);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 160ms var(--ease-out), border-color 160ms var(--ease-out);
}
.button:hover { background: color-mix(in oklab, var(--accent-fill) 86%, #000); }
.button-rec::before {
  content: "";
  inline-size: 0.6em;
  block-size: 0.6em;
  border-radius: 50%;
  background: currentColor;
}
.button-quiet { background: transparent; color: var(--text); border-color: var(--control); }
.button-quiet:hover { background: var(--accent-wash); border-color: var(--accent-line); }

/* Header */
.site-header { padding-block: 18px; }
.site-header .shell { display: flex; align-items: center; gap: 12px 28px; flex-wrap: wrap; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font: 600 1.375rem/1 var(--font-voice);
  text-decoration: none;
}
.brand img { inline-size: 34px; block-size: 34px; }
.site-nav { display: flex; gap: 4px 22px; flex-wrap: wrap; margin-inline-start: auto; }
.site-nav a { color: var(--muted); text-decoration: none; padding-block: 10px; }
.site-nav a:hover, .site-nav a[aria-current] { color: var(--text); text-decoration: underline; text-decoration-color: var(--accent-line); }
.site-header .button { padding-inline: 18px; }

@media (max-width: 640px) {
  .site-header .shell { justify-content: space-between; }
  .site-header .button { display: none; }
  .site-nav { margin-inline-start: 0; gap: 4px 16px; }
}

/* Hero */
.hero { padding-block: clamp(28px, 6vw, 72px) clamp(48px, 8vw, 104px); }
.hero .shell { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 80px); align-items: center; }
.hero h1 { max-inline-size: 13ch; }
.lede { font-size: var(--step-1); line-height: 1.55; color: var(--muted); max-inline-size: 36em; margin-block-start: 22px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-block-start: 30px; }
.hero-note { margin-block-start: 18px; color: var(--muted); font-size: var(--step--1); }

/* The cassette: drawn inline so it themes with the page. Its reels turn while the lamp is lit;
   that slow turn is the page's one moving thing. */
.deck { margin: 0; position: relative; }
.deck svg { inline-size: 100%; filter: drop-shadow(0 28px 34px color-mix(in oklab, var(--shadow) 34%, transparent)); }
.deck .shell-c { fill: #2b2420; }
.deck .label { fill: var(--surface); }
.deck .label-rule { stroke: var(--rule); stroke-width: 1.5; }
.deck .ink { fill: #2b2420; }
.deck .window { fill: #14110e; }
.deck .reel { fill: #f3ead8; }
.deck .hub { fill: #2b2420; }
.deck .tape { fill: #4a3a30; }
.deck .lamp { fill: var(--lamp); }
.deck .label-title { font: 600 italic 23px var(--font-voice); fill: #2b2420; }
.deck .label-side { font: 700 15px var(--font-ui); fill: #9c241a; }
.deck .label-small { font: 500 12.5px var(--font-ui); fill: #5d5046; }
@media (prefers-color-scheme: dark) {
  .deck .label { fill: #f3ead8; }
  .deck .label-rule { stroke: color-mix(in oklab, #b02a1f 22%, #fbf6ea); }
  .deck .shell-c { fill: #3a322a; }
}
.reel-spin { transform-box: fill-box; transform-origin: center; animation: spin 9s linear infinite; }
.lamp-glow { animation: glow 2.4s ease-in-out infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes glow { 50% { opacity: 0.55; } }
.deck figcaption {
  position: absolute;
  inset-inline-end: 4%;
  inset-block-start: -6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 10px;
  border-radius: var(--r-pill);
  background: var(--booth);
  color: var(--booth-text);
  font: 600 var(--step--1)/1 var(--font-ui);
  font-variant-numeric: tabular-nums;
  box-shadow: var(--lift);
}
.deck figcaption::before { content: ""; inline-size: 9px; block-size: 9px; border-radius: 50%; background: #ff5a4c; }

@media (max-width: 860px) {
  .hero .shell { grid-template-columns: 1fr; }
  .hero h1 { max-inline-size: 15ch; }
  .deck { max-inline-size: 520px; }
}

/* Sections */
.section { padding-block: clamp(56px, 9vw, 112px); }
.section-head { max-inline-size: 44rem; margin-block-end: clamp(28px, 4vw, 48px); }
.section-head p { margin-block-start: 14px; color: var(--muted); font-size: var(--step-1); line-height: 1.55; }

/* The J-card: a paper insert with ruled lines, side A and side B, and a spine. */
.jcard {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) minmax(0, 1fr);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--lift);
  overflow: hidden;
}
.spine {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  background: #2b2420;
  color: #f3ead8;
  font: 600 1.125rem/64px var(--font-voice);
  letter-spacing: 0.02em;
}
.spine span:last-child { color: #ff9d8f; font: 600 var(--step--1)/64px var(--font-ui); }
.side { padding: clamp(22px, 3vw, 36px); }
.side + .side { border-inline-start: 1px dashed var(--control); }
.side h3 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-block-end: 12px;
  border-block-end: 2px solid var(--accent-line);
  font-size: var(--step-2);
}
.side h3 b {
  display: inline-grid;
  place-items: center;
  inline-size: 1.6em;
  block-size: 1.6em;
  border-radius: 50%;
  background: var(--accent-fill);
  color: var(--accent-fill-ink);
  font: 700 0.6em/1 var(--font-ui);
}
.tracks { list-style: none; margin: 0; padding: 0; }
.tracks li { padding-block: 14px; border-block-end: 1px solid var(--rule); }
.tracks li:last-child { border-block-end: 0; padding-block-end: 0; }
.tracks .t {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font: 600 var(--step-1)/1.3 var(--font-voice);
}
.tracks .t::after {
  content: "";
  flex: 1;
  order: 1;
  border-block-end: 2px dotted var(--control);
  transform: translateY(-0.25em);
  min-inline-size: 16px;
}
.tracks .t small { order: 2; font: 500 var(--step--1)/1.3 var(--font-ui); color: var(--muted); white-space: nowrap; }
.tracks p { margin-block-start: 4px; color: var(--muted); }
@media (max-width: 520px) {
  .tracks .t { flex-direction: column; gap: 2px; }
  .tracks .t::after { display: none; }
}

@media (max-width: 900px) {
  .jcard { grid-template-columns: minmax(0, 1fr); }
  .spine { writing-mode: horizontal-tb; transform: none; padding: 0 22px; font-size: 1rem; line-height: 48px; }
  .spine span:last-child { line-height: 48px; }
  .side + .side { border-inline-start: 0; border-block-start: 1px dashed var(--control); }
}

/* "Free": a ledger of what is usually on a paid plan. */
.ledger-wrap { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.ledger-wrap .section-head { margin: 0; }
.ledger { inline-size: 100%; border-collapse: collapse; }
.ledger th, .ledger td { padding: 14px 4px; text-align: start; vertical-align: baseline; border-block-end: 1px solid var(--line); }
.ledger thead th { font: 600 var(--step--1)/1.3 var(--font-ui); color: var(--muted); border-block-end: 2px solid var(--text); }
.ledger tbody th { font: 600 var(--step-1)/1.3 var(--font-voice); padding-inline-end: 18px; }
.ledger td { color: var(--muted); }
.ledger td.free { color: var(--text); font-weight: 650; white-space: nowrap; }
.ledger td.free::before { content: ""; display: inline-block; inline-size: 8px; block-size: 8px; margin-inline-end: 8px; border-radius: 50%; background: var(--lamp); }
.fine { margin-block-start: 16px; color: var(--muted); font-size: var(--step--1); }
@media (max-width: 860px) { .ledger-wrap { grid-template-columns: 1fr; } }
@media (max-width: 520px) {
  .ledger thead { display: none; }
  .ledger tr { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding-block: 12px; border-block-end: 1px solid var(--line); }
  .ledger th, .ledger td { padding: 0; border: 0; }
  .ledger td:not(.free) { grid-column: 1 / -1; grid-row: 2; }
}

/* Privacy: the booth with the lights down. */
.booth { background: var(--booth); color: var(--booth-text); border-block: 1px solid var(--booth-line); }
.booth .shell { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.booth h2 { color: var(--booth-text); }
.booth p { color: var(--booth-muted); margin-block-start: 16px; font-size: var(--step-1); line-height: 1.55; }
.booth a { color: var(--booth-link); }
.booth :focus-visible { outline-color: #8cc4ec; }
.onair {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-block-end: 22px;
  padding: 7px 14px;
  border: 1px solid var(--booth-line);
  border-radius: var(--r-sm);
  color: var(--booth-muted);
  font: 600 var(--step--1)/1 var(--font-ui);
}
.onair::before { content: ""; inline-size: 9px; block-size: 9px; border-radius: 50%; background: #5d5046; box-shadow: inset 0 0 0 1px #7d6e60; }
.facts { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.facts li { padding-block: 18px; border-block-end: 1px solid var(--booth-line); color: var(--booth-muted); }
.facts li:first-child { padding-block-start: 0; }
.facts strong { display: block; color: var(--booth-text); font: 600 var(--step-1)/1.3 var(--font-voice); margin-block-end: 4px; }
@media (max-width: 860px) { .booth .shell { grid-template-columns: 1fr; } }

/* Steps: a real sequence, so it is numbered. */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 40px); counter-reset: step; }
.steps li { counter-increment: step; padding-block-start: 18px; border-block-start: 2px solid var(--text); }
.steps li::before { content: counter(step); display: block; font: 600 var(--step-3)/1 var(--font-voice); color: var(--accent-text); margin-block-end: 12px; }
.steps p { margin-block-start: 8px; color: var(--muted); }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

/* Guides: a ruled index, two columns on wide screens. */
.guide-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(24px, 4vw, 56px); }
.guide-list li { padding-block: 18px; border-block-start: 1px solid var(--line); }
.guide-list a { font: 600 var(--step-1)/1.3 var(--font-voice); color: var(--text); text-decoration-color: var(--accent-line); }
.guide-list a:hover { color: var(--accent-text); }
.guide-list p { margin-block-start: 6px; color: var(--muted); }
@media (max-width: 760px) { .guide-list { grid-template-columns: 1fr; } }

.closing .shell { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px 48px; padding: clamp(28px, 4vw, 48px); background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); }
.closing p { margin-block-start: 10px; color: var(--muted); max-inline-size: 40em; }

/* Articles: guides, the comparison, privacy and support. */
.article { padding-block: clamp(24px, 5vw, 56px) clamp(56px, 9vw, 104px); }
.article .shell { max-inline-size: 760px; }
.article h1 { font-size: var(--step-3); }
.article .lede { margin-block-start: 18px; }
.meta { margin-block-start: 14px; color: var(--muted); font-size: var(--step--1); }
.prose { margin-block-start: clamp(28px, 4vw, 44px); }
.prose > * + * { margin-block-start: 1em; }
.prose h2 { font-size: var(--step-2); margin-block-start: 2em; }
.prose h3 { margin-block-start: 1.6em; }
.prose h2 + *, .prose h3 + * { margin-block-start: 0.7em; }
.prose ul, .prose ol { padding-inline-start: 1.4em; }
.prose li + li { margin-block-start: 0.5em; }
.prose li::marker { color: var(--accent-text); }
.prose ol > li::marker { font-family: var(--font-voice); font-weight: 600; }

.note {
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.note strong:first-child { font-family: var(--font-voice); }

.table-wrap { overflow-x: auto; margin-block: 1.4em; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); }
.compare { inline-size: 100%; min-inline-size: 560px; border-collapse: collapse; font-size: var(--step--1); }
.compare caption { caption-side: bottom; padding: 12px 16px; text-align: start; color: var(--muted); border-block-start: 1px solid var(--line); }
.compare th, .compare td { padding: 12px 16px; text-align: start; vertical-align: top; border-block-end: 1px solid var(--line); }
.compare tbody tr:last-child > * { border-block-end: 0; }
.compare thead th { font-weight: 650; background: var(--sunk); }
.compare tbody th { font-weight: 600; }
.compare td { color: var(--muted); }
.compare td:nth-child(2) { color: var(--text); }
/* On narrow screens the table scrolls sideways; the feature names stay put. */
@media (max-width: 640px) {
  .compare { min-inline-size: 520px; }
  .compare tbody th, .compare thead th:first-child {
    position: sticky;
    inset-inline-start: 0;
    z-index: 1;
    inline-size: 8.5em;
    background: var(--surface);
    box-shadow: 1px 0 0 var(--line);
  }
  .compare thead th:first-child { background: var(--sunk); }
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-block-start: 2.2em; }

.related { margin-block-start: 3em; padding-block-start: 22px; border-block-start: 1px solid var(--line); }
.related h2 { font-size: var(--step-1); margin: 0; }
.related ul { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }

/* Support FAQ */
.faq { border-block-start: 1px solid var(--line); }
.faq details { border-block-end: 1px solid var(--line); }
.faq summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  font: 600 var(--step-1)/1.35 var(--font-voice);
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 400 1.5rem/1 var(--font-ui); color: var(--accent-text); }
.faq details[open] summary::after { content: "\2212"; }
.faq details > :not(summary) { padding-block-end: 18px; color: var(--muted); }
.faq details > :not(summary) + :not(summary) { margin-block-start: -6px; }
.contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
  margin-block-start: 2em;
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.contact a.mail { font: 600 var(--step-2)/1.2 var(--font-voice); overflow-wrap: anywhere; }

/* Footer, with the cassette spine as its top edge. */
.site-footer { margin-block-start: clamp(24px, 4vw, 48px); background: var(--sunk); border-block-start: 6px solid #2b2420; }
.site-footer .shell { display: grid; grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr)); gap: 32px; padding-block: 48px 56px; }
.site-footer p { margin-block-start: 12px; color: var(--muted); font-size: var(--step--1); max-inline-size: 30em; }
.footer-col { display: grid; gap: 8px; align-content: start; font-size: var(--step--1); }
.footer-col strong { font: 600 var(--step-0)/1.3 var(--font-voice); margin-block-end: 4px; }
.footer-col a { color: var(--text); text-decoration-color: var(--control); padding-block: 2px; }
@media (max-width: 860px) { .site-footer .shell { grid-template-columns: 1fr 1fr; } .site-footer .shell > :first-child { grid-column: 1 / -1; } }
@media (max-width: 480px) { .site-footer .shell { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
}