/* CMX WD 5.0 · The Register · components
   Layout: a continuous ruled document. Every block registers to a rule.
   Motion: answers inside 150ms, then stops (the sketchbook thud).
   Reveal: graphite underlay resolves to full toner as it enters the page. */

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-sans);
  font-size: var(--t-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  font-family: var(--f-slab);
  color: var(--toner);
  line-height: 1.12;
  margin: 0 0 var(--s2);
  letter-spacing: -0.012em;
  font-weight: 700;
  text-wrap: balance;
}
h1 { font-size: var(--t-display); font-weight: 800; }
h2 { font-size: var(--t-h2); }
h3 { font-size: var(--t-h3); }

p { margin: 0 0 var(--s2); max-width: 38em; }
ul, ol, dl { margin: 0; padding: 0; }
li { list-style: none; }

a { color: var(--cyan-deep); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--toner); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

.skip {
  position: absolute; left: var(--s2); top: -3rem;
  background: var(--toner); color: var(--paper);
  padding: 0.5rem 1rem; z-index: 10; transition: top var(--snap);
}
.skip:focus { top: var(--s2); color: var(--paper); }

/* ---------- sheet + margin column ---------- */

.sheet {
  max-width: var(--sheet);
  margin: 0 auto;
  padding: 0 clamp(1.1rem, 4vw, 2.5rem);
}

.wrap { max-width: var(--sheet); margin: 0 auto; }

.chapter {
  border-top: 1px solid var(--rule-strong);
  padding: var(--s3) 0 var(--s5);
}
.chapter-plain { border-top: 1px solid var(--rule); }

.cols { display: flex; flex-direction: column; align-items: stretch; }
.cols > .note { order: 9; }
.note {
  display: block;
  font-family: var(--f-slab);
  font-style: italic;
  color: var(--graphite);
  font-size: var(--t-small);
  line-height: 1.5;
  margin: var(--s3) 0 0;
  padding-top: var(--s2);
  border-top: 1px solid var(--rule);
  max-width: 26em;
}
.note .flag { margin-right: 0.5rem; }

@media (min-width: 68rem) {
  .cols > .note { order: 0; }
  .cols {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 13rem;
    column-gap: 2.75rem;
  }
  .note {
    grid-column: 2;
    grid-row: 1 / span 8;
    border-left: 1px solid var(--rule-strong);
    border-top: 0;
    padding-top: 0;
    padding-left: 1.5rem;
    margin: 0.4rem 0 0;
    align-self: start;
    position: sticky;
    top: 5.5rem;
  }
  .cols > *:not(.note) { grid-column: 1; }
}

.kicker {
  font-size: var(--t-micro);
  font-weight: 600;
  color: var(--graphite);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 var(--s2);
}

.flag {
  display: inline-block;
  width: 0.6em; height: 0.85em;
  background: var(--cyan);
  vertical-align: baseline;
  transform: translateY(0.08em);
}

/* ---------- header ---------- */

.site-head {
  border-bottom: 2px solid var(--toner);
  background: var(--paper);
}
.site-head .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  padding: 0.9rem 0;
}
.wordmark {
  font-family: var(--f-slab);
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: -0.01em;
  color: var(--toner);
  text-decoration: none;
  line-height: 1;
}
.wordmark small {
  display: block;
  font-family: var(--f-sans);
  font-weight: 500;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--graphite);
  margin-top: 0.28rem;
}
.wordmark:hover { color: var(--toner); }

.site-nav ul { display: flex; gap: 1.4rem; align-items: center; }
.site-nav a {
  font-size: var(--t-small);
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--snap);
}
.site-nav a:hover { border-bottom-color: var(--graphite); color: var(--toner); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--cyan); color: var(--toner); }
.site-nav a.btn { color: var(--paper); border-bottom: 0; }
.site-nav a.btn:hover { color: var(--paper); }

.menu { display: none; position: relative; }
.menu summary {
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  font-size: var(--t-small);
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--rule-strong);
  color: var(--toner);
  user-select: none;
}
.menu summary::-webkit-details-marker { display: none; }
.menu[open] summary { background: var(--toner); color: var(--paper); }
.menu .menu-list {
  position: absolute; right: 0; top: calc(100% + 0.4rem);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  box-shadow: 0 10px 24px oklch(20% 0.01 270 / 0.12);
  min-width: 13rem;
  z-index: 9;
}
.menu .menu-list a {
  display: block;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--rule);
  font-weight: 600;
  font-size: var(--t-small);
  color: var(--ink);
  text-decoration: none;
}
.menu .menu-list a:hover { background: var(--paper-shade); color: var(--toner); }
.menu .menu-list a[aria-current="page"] { border-left: 3px solid var(--cyan); }

@media (max-width: 53.99rem) {
  .site-nav { display: none; }
  .menu { display: block; }
}

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--f-slab);
  font-weight: 600;
  font-size: 1rem;
  background: var(--toner);
  color: var(--paper);
  text-decoration: none;
  border: 0;
  border-left: 5px solid var(--cyan);
  padding: 0.85em 1.4em;
  cursor: pointer;
  transition: background-color var(--snap), transform var(--snap);
}
.btn:hover { background: var(--cyan-deep); color: var(--paper); }
.btn:active { transform: translateY(1px); }

.btn-ghost {
  background: transparent;
  color: var(--toner);
  border: 1px solid var(--rule-strong);
  border-left: 5px solid var(--cyan);
}
.btn-ghost:hover { background: var(--paper-shade); color: var(--toner); }

.btn-small { font-size: var(--t-small); padding: 0.55em 1em; }

/* ---------- the register ---------- */

.mark { width: 2.1rem; height: 2.1rem; display: block; }
.mark-large { width: 4rem; height: 4rem; display: block; }

.reg { border-top: 1px solid var(--rule-strong); }
.reg-row {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) auto;
  gap: 0.9rem;
  align-items: center;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--rule);
}
.reg-row .mark { width: 2.1rem; height: 2.1rem; display: block; }
.reg-slug {
  font-family: var(--f-slab);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--toner);
  letter-spacing: -0.005em;
}
.reg-fields {
  font-size: var(--t-micro);
  color: var(--graphite);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.reg-status {
  font-size: var(--t-micro);
  font-weight: 600;
  color: var(--graphite);
  border: 1px solid var(--rule-strong);
  padding: 0.15rem 0.55rem;
  white-space: nowrap;
}
.reg-status.is-live { color: var(--toner); }
.reg-row.is-blank .reg-slug { color: var(--toner); }
.reg-row.is-blank .reg-fields { color: var(--rule-strong); }
.reg-row.is-blank { background: linear-gradient(to right, oklch(75% 0.125 220 / 0.07), transparent 55%); }

@media (max-width: 38rem) {
  .reg-row { grid-template-columns: 2.1rem minmax(0, 1fr); }
  .reg-status { grid-column: 2; justify-self: start; margin-top: -0.2rem; }
  .reg-fields { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
}

/* expandable entries (work + chapter 3) */

.entry { border-bottom: 1px solid var(--rule); }
.entry summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 0;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) auto;
  gap: 0.9rem;
  align-items: center;
}
.entry summary::-webkit-details-marker { display: none; }
.entry summary:hover .reg-slug { color: var(--cyan-deep); }
.entry .opener {
  font-size: var(--t-micro);
  font-weight: 600;
  color: var(--graphite);
  border: 1px solid var(--rule-strong);
  width: 1.5rem; height: 1.5rem;
  display: grid; place-items: center;
  transition: background-color var(--snap), color var(--snap), transform var(--snap);
}
.entry[open] .opener { background: var(--toner); color: var(--paper); transform: rotate(45deg); }
.entry-body {
  padding: 0.4rem 0 1.6rem;
}
.entry-body .id-plate {
  display: grid;
  gap: 0.4rem 1.5rem;
  border: 1px solid var(--rule-strong);
  background: var(--paper-shade);
  padding: 1.1rem 1.2rem;
  margin: 0.6rem 0 1rem;
}
.id-plate > div { display: grid; grid-template-columns: 7.5rem 1fr; gap: 0.8rem; font-size: var(--t-small); border-bottom: 1px solid var(--rule); padding: 0.35rem 0; }
.id-plate > div:last-child { border-bottom: 0; }
.id-plate dt { font-weight: 600; color: var(--graphite); }
.id-plate dd { margin: 0; color: var(--ink); }
.swatches { display: inline-flex; gap: 0.35rem; vertical-align: middle; margin-left: 0.6rem; }
.swatches i { width: 0.95rem; height: 0.95rem; border: 1px solid oklch(0% 0 0 / 0.15); display: inline-block; }

@media (max-width: 38rem) {
  .id-plate > div { grid-template-columns: 1fr; gap: 0.1rem; }
}

/* ---------- collision test ---------- */

.chips { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: var(--s2) 0 var(--s3); }
.chip {
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: var(--t-small);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  padding: 0.5rem 0.95rem;
  cursor: pointer;
  transition: background-color var(--snap), color var(--snap), border-color var(--snap);
}
.chip:hover { border-color: var(--toner); color: var(--toner); }
.chip[aria-pressed="true"] {
  background: var(--toner);
  color: var(--paper);
  border-color: var(--toner);
  box-shadow: inset 0 0 0 1px var(--paper), inset 0.45rem 0 0 0 var(--cyan);
  padding-left: 1.35rem;
}

.compare { border-top: 1px solid var(--rule-strong); margin-top: var(--s2); }
.compare-row {
  display: grid;
  grid-template-columns: 6.5rem 1fr 1fr;
  gap: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: var(--t-small);
}
.compare-row.head { font-weight: 700; color: var(--toner); font-family: var(--f-slab); }
.compare-row dt, .compare-label { font-weight: 600; color: var(--graphite); }
.verdict {
  font-family: var(--f-slab);
  font-weight: 700;
  font-size: var(--t-h3);
  color: var(--toner);
  padding: 1rem 0 0;
}
.verdict .flag { margin-right: 0.55rem; }

@media (max-width: 38rem) {
  .compare-row { grid-template-columns: 5rem 1fr 1fr; font-size: var(--t-micro); }
}

/* ---------- your line ---------- */

.yourline-input {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.7rem;
  margin: var(--s2) 0 var(--s3);
  max-width: 34rem;
}
.yourline-input input { flex: 1 1 14rem; }

/* ---------- pricing ledger ---------- */

.price-ledger { border-top: 1px solid var(--rule-strong); }
.price-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.2rem 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.price-row h3 { margin: 0; }
.price-row .price {
  font-family: var(--f-slab);
  font-weight: 800;
  font-size: clamp(1.3rem, 1.1rem + 1vw, 1.8rem);
  color: var(--toner);
  white-space: nowrap;
}
.price-row .price small { font-family: var(--f-sans); font-weight: 500; font-size: 0.7em; color: var(--graphite); }
.price-row .annot {
  grid-column: 1 / -1;
  font-family: var(--f-slab);
  font-style: italic;
  color: var(--graphite);
  font-size: var(--t-small);
  max-width: 42em;
}

/* ---------- form ---------- */

.enquiry { max-width: 34rem; }
.field { margin-bottom: var(--s3); }
.field label {
  display: block;
  font-size: var(--t-small);
  font-weight: 600;
  color: var(--toner);
  margin-bottom: 0.35rem;
}
input[type="text"], input[type="email"], input[type="tel"], textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: var(--paper);
  border: 0;
  border-bottom: 1.5px solid var(--rule-strong);
  padding: 0.3rem 0.1rem 0.5rem;
  border-radius: 0;
}
input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-bottom-color: var(--toner);
}
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-bottom: 2px solid var(--cyan-deep); }
.err {
  display: block;
  min-height: 1.3em;
  font-size: var(--t-micro);
  font-weight: 600;
  color: var(--cyan-deep);
  margin-top: 0.3rem;
}

.form-success {
  border: 1px solid var(--rule-strong);
  background: var(--paper-shade);
  padding: 1.6rem 1.5rem;
  max-width: 34rem;
}
.form-success .mark-large { width: 4rem; height: 4rem; margin-bottom: 0.8rem; }
@media (prefers-reduced-motion: no-preference) {
  .form-success.stamped { animation: stamp 140ms cubic-bezier(0.2, 0.8, 0.3, 1) both; }
  @keyframes stamp {
    from { transform: scale(1.03); }
    to { transform: scale(1); }
  }
}

/* ---------- trust plates ---------- */

.plates { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); margin-top: var(--s3); }
.plate {
  border: 1px solid var(--rule-strong);
  padding: 1.1rem 1.2rem;
  font-size: var(--t-small);
  background: var(--paper);
}
.plate strong { font-family: var(--f-slab); color: var(--toner); display: block; margin-bottom: 0.3rem; }
.plate a { font-weight: 600; }

/* ---------- footer ---------- */

.site-foot {
  border-top: 2px solid var(--toner);
  margin-top: var(--s5);
  padding: var(--s4) 0;
  font-size: var(--t-small);
}
.foot-grid {
  display: grid;
  gap: var(--s3);
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}
.foot-grid h2 { font-size: 1rem; margin-bottom: 0.6rem; }
.foot-grid p { margin-bottom: 0.4rem; }
.fingerline {
  margin-top: var(--s4);
  border: 1px solid var(--rule-strong);
  background: var(--paper-shade);
  padding: 1rem 1.2rem;
  font-size: var(--t-micro);
  color: var(--graphite);
}
.fingerline b { color: var(--toner); }
.foot-legal {
  margin-top: var(--s3);
  padding-top: var(--s2);
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  color: var(--graphite);
  font-size: var(--t-micro);
}

/* ---------- hero ---------- */

.hero { padding: var(--s5) 0 var(--s4); border-top: 0; }
.hero h1 { max-width: 11em; margin-bottom: var(--s3); }
.hero .lede { font-size: var(--t-h3); font-family: var(--f-sans); color: var(--ink); max-width: 30em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: var(--s3) 0 var(--s4); }

/* ---------- reveal: graphite resolves to ink ---------- */

@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .resolve {
      animation: resolve linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 45%;
    }
    @keyframes resolve {
      from { opacity: 0.35; }
      to { opacity: 1; }
    }
  }
}
@media (prefers-contrast: more) {
  .resolve { animation: none; opacity: 1; }
}

/* ---------- prose pages ---------- */

.prose h2 { margin-top: var(--s4); }
.prose ul { padding-left: 1.2rem; margin-bottom: var(--s2); max-width: 38em; }
.prose li { list-style: disc; margin-bottom: 0.4rem; }

/* ---------- misc ---------- */

.lead-entry { border: 1px solid var(--rule-strong); padding: clamp(1.2rem, 3vw, 2rem); background: var(--paper-shade); margin-bottom: var(--s4); }
.lead-entry .mark-large { width: 3.4rem; height: 3.4rem; float: right; margin-left: 1rem; }

hr.rule { border: 0; border-top: 1px solid var(--rule-strong); margin: var(--s4) 0; }