/* The Gladney Family Tree — ink on old paper */

:root {
  --paper: #EFE6D5;
  --paper-hi: #F7F1E6;
  --paper-lo: #E3D6BF;
  --ink: #2C1B11;
  --ink-2: #5A4030;
  --ink-3: #8C705A;
  --rule: rgba(60, 40, 26, 0.22);
  --rule-strong: rgba(60, 40, 26, 0.42);
  --accent: #7A2E1F;

  --display: 'IM Fell English', 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --display-sc: 'IM Fell English SC', 'IM Fell English', Georgia, serif;
  --sans: 'Alegreya Sans', 'Gill Sans', 'Trebuchet MS', sans-serif;

  --gutter: clamp(16px, 5vw, 72px);
  --gauge-w: 72px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

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

html {
  background: var(--paper);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: auto;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

button { font: inherit; color: inherit; }

.skip {
  position: fixed; left: 12px; top: -60px; z-index: 50;
  background: var(--ink); color: var(--paper-hi);
  padding: 10px 14px; border-radius: 2px; text-decoration: none;
}
.skip:focus { top: 12px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.vh {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- the tree + paper ---------- */
#tree {
  position: fixed; left: 0; top: 0;
  width: 100vw; height: 100vh; height: 100lvh;
  z-index: 0; pointer-events: none;
}

.paper-grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 45%, rgba(239, 230, 213, 0) 55%, rgba(120, 88, 58, 0.16) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .35 0 0 0 0 .24 0 0 0 0 .15 0 0 0 .55 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.38'/%3E%3C/svg%3E");
  opacity: .55;
}

/* ---------- fixed chrome ---------- */
.draft {
  position: fixed; top: 16px; right: var(--gutter); z-index: 5; margin: 0;
  opacity: var(--chrome-o, 0);
  font-size: .74rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-2);
  border: 1px solid var(--rule-strong); border-radius: 99px;
  padding: 2px 10px 1px;
  background: rgba(247, 241, 230, .7);
  pointer-events: auto;
}

/* generation gauge: a vertical time rail on the right */
.gauge {
  position: fixed; z-index: 5;
  opacity: var(--chrome-o, 0);
  right: clamp(10px, 2.2vw, 30px); top: 50%;
  height: min(60vh, 520px); width: var(--gauge-w);
  transform: translateY(-50%);
}
.gauge__rail {
  position: absolute; right: 6px; top: 0; bottom: 0; width: 1px;
  background: var(--rule-strong);
}
.gauge__fill {
  position: absolute; left: 0; bottom: 0; width: 1px; height: 0;
  background: var(--ink);
}
.gauge__list { list-style: none; margin: 0; padding: 0; position: absolute; inset: 0; }
.gauge__item { position: absolute; right: 0; transform: translateY(-50%); }
.gauge__btn {
  display: flex; align-items: center; justify-content: flex-end; gap: 8px;
  background: none; border: 0; padding: 4px 0; cursor: pointer;
  min-height: 24px;
  font-family: var(--display); font-size: .95rem; line-height: 1;
  color: var(--ink-2);
  transition: color .3s var(--ease);
}
.gauge__btn::after {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--paper); border: 1px solid var(--ink-3);
  margin-right: 3px;
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.gauge__btn:hover, .gauge__item.is-current .gauge__btn { color: var(--ink); }
.gauge__item.is-current .gauge__btn::after { background: var(--accent); border-color: var(--accent); transform: scale(1.35); }
.gauge__item.is-past .gauge__btn::after { background: var(--ink); border-color: var(--ink); }
.gauge__year {
  position: absolute; right: 18px; top: -2.4rem; margin: 0;
  font-family: var(--display); font-size: 1.05rem; color: var(--ink);
  white-space: nowrap;
}
.gauge__year-c { font-style: italic; color: var(--ink-2); }

/* ---------- the journey (bottom-up) ---------- */
.journey {
  position: relative; z-index: 2;
  display: flex; flex-direction: column-reverse;
}

.links {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%;
  z-index: -1; pointer-events: none; overflow: visible;
}
.links path { fill: none; stroke: var(--ink); stroke-linecap: round; }
.links .l-main { stroke-width: 2.1; opacity: .62; }
.links .l-fork { stroke-width: 1.2; opacity: .55; }

/* stage: hero + the root, held in place while the camera dives to the roots */
.stage { position: relative; height: 270vh; height: 270svh; }
.stage__pin { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }

.hero-cap {
  position: absolute; left: 0; right: 0; top: var(--name-top, 76%);
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  text-align: center;
  opacity: calc(1 - var(--q, 0) * 4);
  transform: translateY(calc(var(--q, 0) * 70px));
}
.hero-name {
  margin: 0;
  font-family: var(--display); font-weight: 400;
  font-size: var(--name-size, 5.5rem); line-height: 1;
  letter-spacing: .015em;
  color: var(--ink);
  transition: opacity 1.6s var(--ease), transform 1.6s var(--ease);
}
.cue { transition: opacity 1.6s var(--ease) .5s; }
html.growing .hero-name { opacity: 0; transform: translateY(10px); }
html.growing .cue { opacity: 0; }

.cue {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px;
  background: none; border: 0; cursor: pointer; padding: 8px 12px;
  font-family: var(--display); font-style: italic; font-size: 1.15rem;
  color: var(--ink);
}
.cue__arrow { width: 14px; height: 24px; fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; animation: cue-bob 2.4s var(--ease) infinite; }
@keyframes cue-bob { 0%, 100% { transform: translateY(3px); } 50% { transform: translateY(-4px); } }
.cue.nudge { animation: cue-nudge .6s var(--ease); }
@keyframes cue-nudge { 0%, 100% { transform: translateY(0); } 30% { transform: translateY(-10px); } 60% { transform: translateY(2px); } }

.progenitor {
  position: absolute; left: 0; right: 0;
  top: calc(var(--ground, 46) * 1% + 7vh);
  padding: 0 var(--gutter);
  text-align: center;
  opacity: var(--p, 0);
  transform: translateY(calc((1 - var(--p, 0)) * 24px));
  visibility: hidden;
}
.progenitor.on { visibility: visible; }
.eyebrow {
  margin: 0 0 .35rem;
  font-family: var(--display-sc); font-size: .95rem; letter-spacing: .16em;
  color: var(--ink-2);
}
.progenitor__name {
  margin: 0;
  font-family: var(--display); font-weight: 400; font-style: italic;
  font-size: clamp(2.6rem, 7.4vw, 5.6rem); line-height: 1;
  letter-spacing: -.01em;
  color: var(--ink);
  text-wrap: balance;
}
.progenitor__years {
  margin: .55rem 0 0;
  font-family: var(--display); font-size: clamp(1.15rem, 2vw, 1.45rem);
  color: var(--ink);
}
.progenitor__spouse { margin: .15rem 0 0; color: var(--ink-2); font-style: italic; }
.progenitor__bio {
  max-width: 34rem; margin: .9rem auto 0;
  color: var(--ink-2); font-size: 1.02rem;
}
.progenitor__more, .today__back {
  margin-top: 1rem;
  background: none; border: 0; border-bottom: 1px solid var(--rule-strong);
  padding: 6px 2px 3px; cursor: pointer;
  font-family: var(--display); font-style: italic; font-size: 1.12rem; color: var(--ink);
  transition: border-color .3s var(--ease);
}
.progenitor__more:hover, .today__back:hover { border-color: var(--ink); }

/* ---------- generations ---------- */
.gen {
  position: relative;
  display: flex; flex-direction: column-reverse; align-items: center;
  padding: 22vh calc(var(--gutter) + var(--gauge-w)) 6vh var(--gutter);
}
.gen__head { text-align: center; margin-top: 3.2rem; max-width: 36rem; }
.gen__num {
  display: block;
  font-family: var(--display); font-size: clamp(3.2rem, 8vw, 6.4rem); line-height: .85;
  color: var(--ink-3); opacity: .55;
}
.gen__title {
  margin: .5rem 0 0;
  font-family: var(--display-sc); font-weight: 400; font-size: 1.12rem; letter-spacing: .14em;
  color: var(--ink);
}
.gen__era { margin: .1rem 0 0; font-style: italic; color: var(--ink-2); font-size: .98rem; }

.gen__families {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: flex-end;
  gap: 3.2rem 3.6rem;
  width: 100%; max-width: 1240px;
}
.family { display: flex; flex-direction: column-reverse; align-items: center; }
.family__label {
  margin: .9rem 0 0; padding: 0 .4rem;
  font-family: var(--display); font-style: italic; font-size: .98rem;
  color: var(--ink-2);
  background: var(--paper);
  border-radius: 4px;
  position: relative; z-index: 1;
  text-align: center;
}
.family__kids {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; justify-content: center; gap: .9rem;
}

.card {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; gap: .1rem;
  width: 12.2rem; min-height: 6.4rem;
  padding: .85rem .9rem .8rem;
  background: var(--paper-hi);
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  box-shadow: 0 1px 0 rgba(60, 40, 26, .05), 0 14px 26px -20px rgba(60, 40, 26, .55);
  text-align: center; cursor: pointer;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease), opacity .8s var(--ease);
}
.card::before {
  content: ''; position: absolute; inset: 3px; border: 1px solid var(--rule);
  pointer-events: none;
}
.card:hover { transform: translateY(-3px); border-color: var(--ink-3); box-shadow: 0 1px 0 rgba(60, 40, 26, .05), 0 20px 32px -20px rgba(60, 40, 26, .6); }
.card__name { font-family: var(--display); font-size: 1.22rem; line-height: 1.12; color: var(--ink); text-wrap: balance; }
.card__years { font-size: .9rem; color: var(--ink-2); font-style: italic; }
.card__spouse {
  margin-top: .35rem; padding-top: .35rem;
  border-top: 1px solid var(--rule);
  font-size: .86rem; line-height: 1.25; color: var(--ink-2);
}
.card__spouse i { font-family: var(--display); }
.card.is-flash { animation: card-flash 1.6s var(--ease); }
@keyframes card-flash { 0%, 100% { border-color: var(--rule-strong); } 25% { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(122, 46, 31, .25); } }

/* reveal: content rises into place as each generation comes into view */
html.anim .gen .card, html.anim .gen .family__label, html.anim .gen__head { opacity: 0; transform: translateY(-14px); }
html.anim .gen.in .card, html.anim .gen.in .family__label, html.anim .gen.in .gen__head {
  opacity: 1; transform: none;
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: calc(var(--i, 0) * 45ms + 120ms);
}
html.anim .gen.in .card:hover { transform: translateY(-3px); transition-delay: 0ms; }

/* ---------- today ---------- */
.today {
  position: relative;
  min-height: 100vh; min-height: 100svh;
  display: flex; align-items: flex-start; justify-content: center;
  padding: max(11vh, 76px) var(--gutter) 0;
  text-align: center;
}
.today__h {
  margin: 0;
  font-family: var(--display); font-style: italic; font-weight: 400;
  font-size: clamp(2.6rem, 6vw, 4.4rem); line-height: 1;
}
.today__line { margin: .5rem 0 0; font-family: var(--display); font-size: 1.2rem; color: var(--ink-2); }
.today__back { margin-top: .6rem; }

/* ---------- person dialog ---------- */
.person {
  width: min(36rem, calc(100% - 32px));
  max-height: min(88vh, 46rem);
  padding: 0; border: 0; border-radius: 3px;
  background: var(--paper-hi); color: var(--ink);
  box-shadow: 0 40px 80px -30px rgba(44, 27, 17, .6);
}
.person::backdrop { background: rgba(44, 27, 17, .42); backdrop-filter: blur(2px); }
.person[open] { animation: person-in .45s var(--ease); }
@keyframes person-in { from { opacity: 0; transform: translateY(14px); } }
.person__close-form { position: sticky; top: 0; height: 0; z-index: 2; }
.person__close {
  position: absolute; right: 10px; top: 10px;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--paper-hi); border: 1px solid var(--rule); cursor: pointer;
  font-size: 1.6rem; line-height: 1; color: var(--ink);
}
.person__body { padding: 2.4rem clamp(1.25rem, 5vw, 2.5rem) 2rem; text-align: center; }
.portrait {
  width: 96px; height: 122px; margin: 0 auto 1rem;
  border-radius: 50%;
  border: 1px solid var(--rule-strong);
  box-shadow: inset 0 0 0 4px var(--paper-hi), inset 0 0 0 5px var(--rule);
  display: grid; place-items: center;
  background: radial-gradient(circle at 50% 40%, var(--paper-hi), var(--paper-lo));
  font-family: var(--display); font-size: 2rem; color: var(--ink-3);
}
.person__gen { margin: 0; font-family: var(--display-sc); letter-spacing: .14em; font-size: .9rem; color: var(--ink-2); }
.person__name { margin: .2rem 0 0; font-family: var(--display); font-weight: 400; font-size: clamp(1.9rem, 6vw, 2.6rem); line-height: 1.05; }
.person__years { margin: .35rem 0 0; font-family: var(--display); font-size: 1.2rem; }
.person__place { margin: .1rem 0 0; color: var(--ink-2); font-style: italic; }
.person__bio { margin: 1.1rem auto 0; max-width: 30rem; color: var(--ink-2); }
.person__rel { margin: 1.4rem 0 0; display: grid; gap: .9rem; text-align: left; border-top: 1px solid var(--rule); padding-top: 1.1rem; }
.person__rel dt { font-family: var(--display-sc); letter-spacing: .12em; font-size: .85rem; color: var(--ink-2); }
.person__rel dd { margin: .15rem 0 0; display: flex; flex-wrap: wrap; gap: .25rem .9rem; }
.rel-link {
  background: none; border: 0; padding: 2px 0; cursor: pointer;
  font-family: var(--display); font-size: 1.12rem; color: var(--ink);
  border-bottom: 1px solid var(--rule-strong);
  min-height: 24px;
}
.rel-link:hover { border-color: var(--ink); }
.rel-plain { font-family: var(--display); font-size: 1.12rem; }
.rel-plain small, .rel-link small { font-family: var(--sans); font-size: .82rem; color: var(--ink-2); font-style: italic; }
.person__note { margin: 1.4rem 0 0; font-size: .8rem; color: var(--ink-2); letter-spacing: .04em; }

.noscript { position: fixed; inset: auto 0 40% 0; text-align: center; font-family: var(--display); font-size: 1.3rem; z-index: 9; }

html.booting .journey, html.booting .gauge { opacity: 0; }
.gauge, .draft { transition: opacity .5s var(--ease); }

/* ---------- small screens ---------- */
@media (max-width: 760px) {
  :root { --gauge-w: 34px; }
  body { font-size: 1rem; }
  .draft { top: 12px; right: 14px; font-size: .66rem; padding: 1px 8px 0; }
  .gauge { height: min(56vh, 420px); right: 6px; }
  .gauge__btn { font-size: .78rem; gap: 5px; }
  .gauge__btn::after { width: 6px; height: 6px; margin-right: 3.5px; }
  .gauge__year { display: none; }
  .gen { padding-top: 18vh; padding-left: 14px; padding-right: calc(14px + var(--gauge-w)); }
  .gen__families { gap: 2.6rem 1rem; }
  .family { width: 100%; }
  .family__kids { gap: .6rem; width: 100%; }
  .family__kids > li { flex: 0 1 calc(50% - .3rem); display: flex; }
  .card { width: 100%; min-height: 5.8rem; padding: .7rem .55rem .65rem; }
  .card__name { font-size: 1.08rem; }
  .card__years { font-size: .84rem; }
  .card__spouse { font-size: .8rem; }
  .today { padding-left: 14px; padding-right: 14px; padding-top: 74px; }
  .today__h { font-size: 2.4rem; }
  .today__line { font-size: 1.05rem; }
  .progenitor { padding-right: calc(16px + var(--gauge-w)); padding-left: 16px; }
  /* on a phone the rail stays quiet: dots, and only the current numeral */
  .gauge__item:not(.is-current) .gauge__btn { color: transparent; }
}

@media (prefers-reduced-motion: reduce) {
  .cue__arrow { animation: none; }
  .cue.nudge { animation: none; }
  .person[open] { animation: none; }
  html.anim .gen .card, html.anim .gen .family__label, html.anim .gen__head { transform: none; }
  .card, .card:hover { transition: none; transform: none; }
}