/* KIOS lookbook. The herbarium folio system shared with the chapter pages. Single light theme on purpose. */
:root {
  --paper: #EFE6D2; --leaf: #E6DAC0; --rule: #CDBC9A; --sepia: #3B2A20; --faded: #6E5A48;
  --indigo: #2F4A7A; --mengkudu: #A8432E;
  --fell: "IM Fell English", "Iowan Old Style", Georgia, serif;
  --caslon: "Libre Caslon Text", "Iowan Old Style", Georgia, serif;
  --type: "Courier Prime", "Courier New", ui-monospace, monospace;
  --gutter: clamp(16px, 4vw, 48px);
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { background: var(--paper); scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--sepia); font: 17px/1.65 var(--caslon); padding-inline: var(--gutter); -webkit-text-size-adjust: 100%; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--mengkudu); }
:focus-visible { outline: 2px solid var(--mengkudu); outline-offset: 3px; }
[hidden] { display: none !important; }
.wrap { max-width: 1240px; margin: 0 auto; }
.label { font: 400 13px/1.4 var(--type); letter-spacing: .06em; color: var(--faded); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--sepia); color: var(--paper); padding: 8px 12px; }
.skip:focus { left: 8px; z-index: 10; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Buttons */
.btn { display: inline-block; font: 400 15px/1 var(--type); letter-spacing: .04em; text-decoration: none; color: var(--paper); background: var(--sepia); border: 1px solid var(--sepia); padding: 14px 20px; cursor: pointer; }
.btn:hover { background: var(--mengkudu); border-color: var(--mengkudu); color: var(--paper); }
.btn.quiet { background: transparent; color: var(--sepia); }
.btn.quiet:hover { background: var(--leaf); color: var(--sepia); border-color: var(--sepia); }

/* Masthead */
.mast { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding-block: 20px 14px; border-bottom: 3px double var(--sepia); }
.kios { font: 700 22px/1 var(--caslon); letter-spacing: .32em; margin-right: -.32em; text-decoration: none; }
.house { display: flex; align-items: center; gap: 10px; }
.house img { width: 26px; height: 26px; }
.mast nav ul { display: flex; flex-wrap: wrap; gap: 6px 20px; margin: 0; padding: 0; list-style: none; }
.mast nav a { font: 400 13px/1.4 var(--type); letter-spacing: .05em; text-decoration: none; }
.mast nav a:hover { text-decoration: underline; }

/* Opening */
.opening { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; padding-block: clamp(32px, 6vw, 80px); }
.opening .kicker { font: italic 400 20px/1.3 var(--fell); color: var(--faded); margin: 0; }
.opening h1 { font: 400 clamp(46px, 7.4vw, 104px)/.98 var(--fell); margin: 10px 0 24px; letter-spacing: -.01em; text-wrap: balance; }
.opening p { max-width: 54ch; margin: 0 0 16px; }
.opening .cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-top: 26px; }
.stack { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); align-items: start; }
.stack figure { margin: 0; background: var(--leaf); border: 1px solid var(--rule); padding: clamp(6px, 1vw, 12px); box-shadow: 0 1px 0 var(--rule), 0 18px 40px -28px rgba(59, 42, 32, .55); }
.stack .back { grid-column: 1 / span 7; grid-row: 1; margin-top: 16%; }
.stack .front { grid-column: 6 / span 7; grid-row: 1; }

/* Contents */
.contents { border-top: 1px solid var(--rule); padding-block: 26px 40px; }
.contents h2 { font: italic 400 22px/1.2 var(--fell); margin: 0 0 12px; }
.contents ol { list-style: none; margin: 0; padding: 0; columns: 2 320px; column-gap: 56px; }
.contents li { break-inside: avoid; }
.contents a { display: flex; align-items: baseline; gap: 12px; padding-block: 8px; text-decoration: none; border-bottom: 1px dotted var(--rule); }
.contents .n { font: 400 13px/1 var(--type); color: var(--faded); min-width: 2.2em; }
.contents .t { font: 400 22px/1.2 var(--fell); }
.contents .p { margin-left: auto; font: 400 13px/1.3 var(--type); color: var(--faded); text-align: right; }

/* Section heads */
.part { border-top: 3px double var(--sepia); padding-block: clamp(36px, 6vw, 72px); }
.part-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 16px 48px; align-items: end; margin-bottom: clamp(24px, 4vw, 44px); }
.part-head h2 { font: 400 clamp(36px, 5vw, 62px)/1 var(--fell); margin: 6px 0 0; }
.part-head p { margin: 0; max-width: 60ch; }

/* The Archive */
.archive { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: clamp(20px, 4vw, 48px); align-items: start; }
.archive figure { margin: 0; }
.archive .photo img { border: 1px solid var(--rule); }
.archive figcaption, .sheet figcaption { font: 400 13px/1.45 var(--type); color: var(--faded); margin-top: 8px; }
.sheet { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.sheet li:first-child { grid-column: 1 / -1; }
.sheet img { border: 1px solid var(--rule); mix-blend-mode: multiply; }

/* Chapter spreads */
.chapter { border-top: 3px double var(--sepia); padding-block: clamp(40px, 7vw, 96px); scroll-margin-top: 12px; }
.spread { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(26px, 5vw, 80px); align-items: center; }
.chapter:nth-of-type(even) .spread .plate { order: 2; }
.plate { margin: 0; }
.plate .frame { background: var(--leaf); border: 1px solid var(--rule); padding: clamp(8px, 1.2vw, 16px); }
.plate figcaption { font: 400 13px/1.45 var(--type); color: var(--faded); margin-top: 10px; }
.chapter-no { display: flex; align-items: baseline; gap: 14px; margin: 0; }
.chapter-no b { font: 400 clamp(56px, 8.5vw, 116px)/.8 var(--caslon); font-variant-numeric: lining-nums; letter-spacing: -.02em; color: #8F7A5E; }
.chapter h2 { font: 400 clamp(44px, 6.4vw, 88px)/1 var(--fell); margin: 14px 0 16px; text-wrap: balance; }
.lockup { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; margin-bottom: 22px; }
.lockup .k { font: 700 16px/1 var(--caslon); letter-spacing: .3em; }
.lockup .x { font-family: var(--type); color: var(--faded); }
.lockup .typed { font: 700 13px/1 var(--caslon); letter-spacing: .22em; }
.lockup .chip { display: flex; align-items: center; gap: 9px; padding: 6px 10px; }
.lockup .cb { display: flex; align-items: center; gap: 8px; font: 700 16px/1 var(--caslon); }
.lockup .cb img { width: 24px; height: 24px; }
.lockup .gaia { background: #14131a; }
.lockup .gaia img { height: 28px; width: auto; }
.lockup .seascapes { background: #22404D; color: #EBE0CD; }
.lockup .seascapes svg { height: 16px; width: auto; }
.lockup .seascapes span { display: grid; line-height: 1.05; }
.lockup .seascapes b { font: 700 12px/1 var(--caslon); letter-spacing: .2em; }
.lockup .seascapes small { font: 400 8px/1.2 var(--caslon); letter-spacing: .24em; }
.lockup .mb { background: var(--indigo); padding: 7px 9px; }
.lockup .mb img { height: 18px; width: auto; image-rendering: pixelated; }
.chapter .words p { max-width: 52ch; margin: 0 0 14px; }
.drop { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--rule); }
.status-line { font: 400 14px/1.3 var(--type); letter-spacing: .05em; display: inline-flex; align-items: center; gap: 10px; }
.status-line::before { content: ""; width: 10px; height: 10px; border: 1.5px solid var(--mengkudu); border-radius: 50%; }

/* Pieces: an editorial arrangement, one large figure and its companions */
.pieces { display: grid; gap: clamp(12px, 2vw, 24px); margin: clamp(32px, 5vw, 64px) 0 0; padding: 0; list-style: none; grid-auto-flow: dense; }
.pieces[data-count="3"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pieces[data-count="5"] { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.pieces[data-count="6"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pieces li:first-child { grid-column: span 2; grid-row: span 2; }
.chapter:nth-of-type(even) .pieces li:first-child { grid-column: -3 / -1; }
.pieces figure { margin: 0; height: 100%; display: flex; flex-direction: column; }
.pieces .frame { background: var(--leaf); border: 1px solid var(--rule); aspect-ratio: 1; display: grid; place-items: center; }
.pieces li:first-child .frame { aspect-ratio: auto; flex: 1; }
.pieces figcaption { padding-top: 8px; }
.pieces .fig { font: 400 12px/1.3 var(--type); color: var(--faded); }
.pieces .name { display: block; font: italic 400 21px/1.2 var(--fell); }
.pieces li:first-child .name { font-size: 26px; }
.pieces .spec { display: block; font: 400 12px/1.45 var(--type); color: var(--faded); }
.rule-note { margin: 18px 0 0; max-width: 72ch; font-size: 15px; border-left: 2px solid var(--mengkudu); padding-left: 12px; }

/* How a drop works */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin: 0; padding: 0; list-style: none; counter-reset: step; border-top: 1px solid var(--rule); }
.steps li { padding: 22px clamp(12px, 2vw, 26px) 26px; border-right: 1px solid var(--rule); }
.steps li:first-child { padding-left: 0; }
.steps li:last-child { border-right: 0; }
.steps .roman { display: block; font: 400 52px/1 var(--fell); color: var(--mengkudu); }
.steps h3 { font: italic 400 24px/1.2 var(--fell); margin: 12px 0 8px; }
.steps p { margin: 0; font-size: 16px; }
.made { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 10px 32px; margin-top: 12px; padding-top: 22px; border-top: 3px double var(--sepia); }
.made strong { font: 400 clamp(26px, 3.4vw, 40px)/1.15 var(--fell); }

/* Early access */
.signup h2 { font: 400 clamp(36px, 5vw, 62px)/1 var(--fell); margin: 6px 0 18px; }
.signup { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: clamp(24px, 5vw, 72px); align-items: start; }
.signup form { background: var(--leaf); border: 1px solid var(--rule); padding: clamp(18px, 3vw, 34px); }
.field { display: grid; gap: 6px; margin-bottom: 22px; }
.field label, fieldset legend { font: 400 13px/1.4 var(--type); letter-spacing: .06em; color: var(--sepia); }
input[type="email"] { font: 400 18px/1.3 var(--caslon); color: var(--sepia); background: var(--paper); border: 1px solid var(--sepia); border-radius: 0; padding: 12px 14px; width: 100%; }
fieldset { border: 0; margin: 0 0 22px; padding: 0; }
fieldset legend { margin-bottom: 8px; padding: 0; }
.checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 8px; }
.checks label { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--paper); border: 1px solid var(--rule); cursor: pointer; font-size: 16px; }
.checks label:has(input:checked) { border-color: var(--sepia); box-shadow: inset 0 -2px 0 var(--sepia); }
.checks input { width: 18px; height: 18px; accent-color: var(--sepia); margin: 0; flex: none; }
.checks small { font: 400 12px/1 var(--type); color: var(--faded); margin-left: auto; }
.form-status { margin-top: 16px; font-size: 16px; min-height: 1.6em; }
.form-status.ok { border-left: 3px solid var(--indigo); padding-left: 12px; }
.form-status.err { border-left: 3px solid var(--mengkudu); padding-left: 12px; }
.fine { font: 400 13px/1.5 var(--type); color: var(--faded); margin: 14px 0 0; }

/* Footer */
.foot { border-top: 3px double var(--sepia); padding-block: 30px 44px; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 24px 56px; font-size: 15px; }
.foot h2 { font: 400 13px/1.4 var(--type); letter-spacing: .06em; color: var(--faded); margin: 0 0 8px; font-weight: 400; }
.foot p { margin: 0 0 10px; max-width: 70ch; }
.foot ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 4px; }
.foot .colophon { grid-column: 1 / -1; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-top: 18px; border-top: 1px solid var(--rule); }

/* Subtle arrival for figures, CSS only; off when the reader prefers less motion */
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .reveal { animation: arrive linear both; animation-timeline: view(); animation-range: entry 0% entry 60%; }
    @keyframes arrive { from { opacity: .2; transform: translateY(18px); } to { opacity: 1; transform: none; } }
  }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Narrow screens */
@media (max-width: 900px) {
  .opening, .spread, .archive, .signup, .part-head, .foot { grid-template-columns: minmax(0, 1fr); }
  .chapter:nth-of-type(even) .spread .plate { order: 0; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps li { border-right: 0; padding-left: 0; border-bottom: 1px solid var(--rule); }
  .steps li:nth-child(odd) { padding-right: 18px; border-right: 1px solid var(--rule); }
  .steps li:nth-child(even) { padding-left: 18px; }
  .pieces[data-count] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pieces li:first-child .frame { aspect-ratio: 1; flex: none; }
  .pieces li:first-child, .chapter:nth-of-type(even) .pieces li:first-child { grid-column: 1 / -1; grid-row: auto; }
  .pieces[data-count="6"] li:last-child { grid-column: 1 / -1; }
  .pieces[data-count="6"] li:last-child .frame { max-width: calc(50% - 8px); }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .mast nav { width: 100%; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .steps li, .steps li:nth-child(odd), .steps li:nth-child(even) { padding: 18px 0; border-right: 0; }
  .contents .p { display: none; }
}