/* Draw Family Tree
   Layout: modern tool product with a heritage touch. Warm white surfaces, one forest-green action color, the maker
   in an elevated app card with the chart preview kept in view, template cards with previews, dark footer. */
:root {
  --bg: #FFFFFF; --bg-alt: #F8FAF7; --surface: #FFFFFF; --ink: #14201A; --ink-2: #34433A; --muted: #4B5A51;
  --line: #E3E8E2; --line-strong: #CBD5CC;
  --primary: #15803D; --primary-hover: #166534; --primary-ink: #FFFFFF; --primary-soft: #F0FDF4; --primary-ring: rgba(21, 128, 61, .28);
  --cta-end: #A16207; --ok: #047857; --ok-soft: #ECFDF5; --ok-line: #A7F3D0;
  --hero-a: rgba(21, 128, 61, .12); --hero-b: rgba(217, 119, 6, .10);
  --foot-bg: #0F2418; --foot-ink: #E3E8E2; --foot-muted: #9FB3A6;
  --upload: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2315803D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4'/%3E%3Cpolyline points='17 8 12 3 7 8'/%3E%3Cline x1='12' x2='12' y1='3' y2='15'/%3E%3C/svg%3E");
  --radius: 14px; --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 10px 24px -8px rgba(15, 23, 42, .12);
  --shadow-lg: 0 2px 6px rgba(15, 23, 42, .05), 0 28px 56px -16px rgba(15, 23, 42, .22);
  --f: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}
@font-face { font-family: "Plus Jakarta Sans"; src: url("/assets/fonts/PlusJakartaSans-var.woff2") format("woff2"); font-weight: 400 800; font-display: swap; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.65 var(--f); -webkit-font-smoothing: antialiased; }
img, canvas { max-width: 100%; }
a { color: var(--primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--primary-hover); }
:focus-visible { outline: 3px solid var(--primary-ring); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--f); font-weight: 800; line-height: 1.12; letter-spacing: -.025em; color: var(--ink); margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.05rem, 4.6vw, 3.35rem); }
h2 { font-size: clamp(1.45rem, 2.6vw, 1.95rem); letter-spacing: -.02em; }
h3 { font-size: 1.1rem; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
.wrap { max-width: 1180px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.prose { max-width: 70ch; display: grid; gap: 14px; color: var(--ink-2); }
.prose h2, .prose h3 { color: var(--ink); margin-top: 12px; }
.prose ul, .prose ol { margin: 0; padding-left: 1.25em; display: grid; gap: 8px; }
.prose li::marker { color: var(--primary); }
.prose b, .prose strong { color: var(--ink); }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.eyebrow { font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--primary); }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 12px; color: #fff; }

/* header */
.site-head { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .86); -webkit-backdrop-filter: saturate(1.6) blur(12px); backdrop-filter: saturate(1.6) blur(12px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 8px 16px; min-height: 66px; padding-block: 8px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 1.12rem; letter-spacing: -.02em; }
.brand:hover { color: var(--ink); }
.brand svg { width: 32px; height: 32px; flex: none; }
.nav { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; font-weight: 600; font-size: .94rem; }
.nav a { color: var(--ink-2); text-decoration: none; padding: 8px 12px; border-radius: 999px; transition: background .15s, color .15s; }
.nav a:hover { background: var(--bg-alt); color: var(--ink); }
.nav a[aria-current="page"] { background: var(--primary-soft); color: var(--primary); }
@media (max-width: 760px) {
  .site-head { position: static; }
  .nav { font-size: .88rem; margin-inline: -10px; }
  .nav a { padding: 8px 10px; }
}

/* hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line);
  background: radial-gradient(900px 420px at 8% -10%, var(--hero-a), transparent 62%), radial-gradient(760px 380px at 96% 0%, var(--hero-b), transparent 62%), var(--bg); }
.hero .wrap { position: relative; padding-block: 56px 44px; display: grid; gap: 16px; justify-items: start; }
.hero.has-tool .wrap { padding-bottom: 76px; }
.hero p.lead { font-size: clamp(1.04rem, 1.6vw, 1.2rem); max-width: 62ch; color: var(--ink-2); }
.trust { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 0; padding: 0; list-style: none; }
.trust li { display: inline-flex; align-items: center; gap: 7px; padding: 6px 13px 6px 9px; border-radius: 999px; background: rgba(255, 255, 255, .82); border: 1px solid var(--line); box-shadow: var(--shadow-sm); font-size: .86rem; font-weight: 600; color: var(--ink-2); }
.trust svg { width: 17px; height: 17px; color: var(--ok); flex: none; }
@media (max-width: 520px) {
  .hero .wrap { padding-block: 32px 28px; gap: 12px; }
  .hero.has-tool .wrap { padding-bottom: 64px; }
  .trust { gap: 6px; }
  .trust li { font-size: .78rem; padding: 4px 10px 4px 7px; gap: 5px; }
  .trust svg { width: 15px; height: 15px; }
}
.crumbs { font-size: .86rem; color: var(--muted); display: flex; gap: 6px; flex-wrap: wrap; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--primary); text-decoration: underline; }
main > .wrap { display: grid; gap: 76px; padding-block: 40px 96px; }
.hero.has-tool + .wrap { padding-top: 0; }
section { display: grid; gap: 20px; min-width: 0; }
.section-head { display: grid; gap: 8px; max-width: 70ch; }
.section-head p { color: var(--muted); font-size: 1.04rem; }

/* tool: an app card lifted over the hero */
.tool, .maker { position: relative; z-index: 1; margin-top: -44px; display: grid; grid-template-columns: minmax(280px, 360px) minmax(0, 1fr); align-items: stretch;
  background: var(--surface); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow-lg); overflow: hidden; }
.panel { background: var(--bg-alt); border-right: 1px solid var(--line); padding: 24px; display: grid; gap: 18px; align-content: start; min-width: 0; }
.out { padding: 24px; display: grid; gap: 16px; align-content: start; min-width: 0; }
@media (max-width: 900px) {
  .tool, .maker { grid-template-columns: 1fr; }
  .panel { border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 520px) { .panel, .out { padding: 18px; } .tool, .maker { border-radius: 16px; } }
.drop { position: relative; display: grid; gap: 4px; justify-items: center; text-align: center; padding: 20px 16px; border: 1.5px dashed var(--line-strong); border-radius: var(--radius); cursor: pointer; background: var(--surface); transition: border-color .15s, background .15s; }
.drop::before { content: ""; width: 44px; height: 44px; margin-bottom: 6px; border-radius: 12px; background: var(--primary-soft) var(--upload) center / 22px no-repeat; }
.drop:hover, .drop.over { border-color: var(--primary); background: var(--primary-soft); }
.drop:hover::before, .drop.over::before { background-color: var(--surface); }
.drop b { font-size: 1.02rem; color: var(--ink); }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop:focus-within { outline: 3px solid var(--primary-ring); outline-offset: 2px; }
.samples { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: .88rem; color: var(--muted); }
.samples button { min-height: 34px; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); border-radius: 999px; padding: 5px 13px; font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer; transition: border-color .15s, color .15s; }
.samples button:hover { border-color: var(--primary); color: var(--primary); }
.field { display: grid; gap: 8px; }
.field label, .field .label { font-weight: 700; font-size: .9rem; color: var(--ink); display: flex; justify-content: space-between; gap: 8px; }
.field output { font-weight: 700; color: var(--primary); font-variant-numeric: tabular-nums; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
select, input[type="number"], input[type="search"] { font: inherit; font-size: .95rem; width: 100%; min-height: 44px; padding: 9px 12px; border-radius: var(--radius-sm); border: 1px solid var(--line-strong); background-color: var(--surface); color: var(--ink); transition: border-color .15s, box-shadow .15s; }
select { appearance: none; -webkit-appearance: none; padding-right: 38px; cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 16px; }
select:hover, input[type="number"]:hover, input[type="search"]:hover { border-color: var(--muted); }
select:focus, input[type="number"]:focus, input[type="search"]:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-ring); }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 26px; margin: 0; background: transparent; cursor: pointer; }
input[type="range"]::-webkit-slider-runnable-track { height: 6px; border-radius: 99px; background: var(--line-strong); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; margin-top: -7px; border-radius: 50%; background: var(--surface); border: 2px solid var(--primary); box-shadow: 0 1px 3px rgba(15, 23, 42, .2); transition: transform .15s; }
input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.12); }
input[type="range"]::-moz-range-track { height: 6px; border-radius: 99px; background: var(--line-strong); }
input[type="range"]::-moz-range-progress { height: 6px; border-radius: 99px; background: var(--primary); }
input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--surface); border: 2px solid var(--primary); }
input[type="range"]:focus-visible { outline: none; }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 5px var(--primary-ring); }
.seg, .crafts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; border: 0; padding: 0; margin: 0; min-width: 0; }
.seg legend, .crafts legend { font-weight: 700; font-size: .9rem; color: var(--ink); margin-bottom: 8px; padding: 0; }
.seg label, .crafts label { display: block; position: relative; cursor: pointer; }
.seg input, .crafts input { position: absolute; opacity: 0; pointer-events: none; }
.seg span, .crafts span { display: flex; align-items: center; justify-content: center; min-height: 42px; padding: 8px 10px; text-align: center; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--surface); font-weight: 600; font-size: .9rem; color: var(--ink-2); transition: border-color .15s, background .15s, color .15s; }
.seg label:hover span, .crafts label:hover span { border-color: var(--muted); }
.seg input:checked + span, .crafts input:checked + span { border-color: var(--primary); background: var(--primary-soft); color: var(--primary); box-shadow: inset 0 0 0 1px var(--primary); }
.seg input:focus-visible + span, .crafts input:focus-visible + span { outline: 3px solid var(--primary-ring); outline-offset: 2px; }
.checks { display: grid; gap: 10px; font-size: .93rem; color: var(--ink-2); }
.checks label { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; }
.checks input { width: 18px; height: 18px; margin: 3px 0 0; flex: none; accent-color: var(--primary); }
.canvas-wrap { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; overflow: auto; display: grid; place-items: center; min-height: 240px;
  background-color: var(--bg-alt); background-image: radial-gradient(var(--line-strong) 1px, transparent 1.2px); background-size: 16px 16px; }
.canvas-wrap canvas { display: block; height: auto; border-radius: 3px; box-shadow: 0 1px 2px rgba(15, 23, 42, .08), 0 12px 30px -10px rgba(15, 23, 42, .3); }
.summary { font-size: .98rem; color: var(--ink-2); }
.summary b { color: var(--ink); }
.status { font-size: .88rem; color: var(--muted); min-height: 1.4em; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { font: inherit; font-weight: 700; font-size: .97rem; display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 11px 20px; border-radius: 12px; border: 1px solid var(--primary); background: var(--primary); color: var(--primary-ink); cursor: pointer; text-decoration: none;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .12), 0 6px 16px -6px var(--primary-ring); transition: background .15s, border-color .15s, color .15s, transform .15s, box-shadow .15s; }
.btn:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: var(--primary-ink); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.ghost { background: var(--surface); color: var(--ink); border-color: var(--line-strong); box-shadow: var(--shadow-sm); }
.btn.ghost:hover { background: var(--surface); border-color: var(--primary); color: var(--primary); }
.btn:disabled { opacity: .55; cursor: progress; transform: none; }
.privacy { display: flex; gap: 12px; align-items: flex-start; background: var(--ok-soft); border: 1px solid var(--ok-line); border-radius: var(--radius); padding: 13px 16px; font-size: .92rem; color: var(--ink-2); }
.privacy svg { flex: none; width: 20px; height: 20px; color: var(--ok); margin-top: 2px; }

/* tables */
.key-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
table { border-collapse: collapse; width: 100%; font-size: .93rem; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: .73rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); background: var(--bg-alt); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: var(--bg-alt); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.num { white-space: nowrap; }

/* content blocks */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: grid; gap: 8px; align-content: start; text-decoration: none; color: var(--ink); box-shadow: var(--shadow-sm); transition: border-color .15s, box-shadow .2s, transform .2s; }
a.card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); color: var(--ink); }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: grid; gap: 10px; align-content: start; box-shadow: var(--shadow-sm); }
.feature .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.feature .ico svg { width: 22px; height: 22px; }
.feature p { color: var(--muted); font-size: .95rem; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; counter-reset: s; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: grid; gap: 8px; align-content: start; counter-increment: s; box-shadow: var(--shadow-sm); }
.step::before { content: counter(s); width: 34px; height: 34px; margin-bottom: 4px; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: var(--primary-ink); font-weight: 800; font-size: .95rem; }
.step p { color: var(--muted); font-size: .95rem; }
details.faq { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .15s, box-shadow .15s; }
details.faq + details.faq { margin-top: 10px; }
details.faq[open] { border-color: var(--line-strong); box-shadow: var(--shadow-sm); }
details.faq summary { list-style: none; position: relative; cursor: pointer; font-weight: 700; color: var(--ink); padding: 16px 52px 16px 18px; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: ""; position: absolute; right: 20px; top: 50%; width: 9px; height: 9px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: translateY(-70%) rotate(45deg); transition: transform .2s; }
details.faq[open] summary::after { transform: translateY(-25%) rotate(-135deg); }
details.faq p { padding: 0 18px 16px; color: var(--ink-2); }
.cta { position: relative; overflow: hidden; border-radius: 20px; padding: clamp(26px, 4vw, 40px); display: grid; gap: 12px; justify-items: start; color: #fff; box-shadow: var(--shadow-lg);
  background: radial-gradient(500px 260px at 100% 0%, rgba(255, 255, 255, .16), transparent 60%), linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 55%, var(--cta-end) 100%); }
.cta h2 { color: #fff; }
.cta p { color: rgba(255, 255, 255, .9); max-width: 60ch; }
.cta .btn { background: #fff; border-color: #fff; color: var(--primary); box-shadow: 0 6px 16px -6px rgba(0, 0, 0, .35); }
.cta .btn:hover { background: #fff; color: var(--primary-hover); }
.guide-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.guide-list li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow-sm); transition: border-color .15s; }
.guide-list li:hover { border-color: var(--primary); }
.guide-list a { text-decoration: none; }
.guide-list a b { color: var(--ink); }
.guide-list a:hover b { color: var(--primary); }
article.guide { max-width: 980px; }
article.guide > :not(.key-wrap):not(table) { max-width: 70ch; }

/* footer */
.site-foot { background: var(--foot-bg); color: var(--foot-muted); }
.site-foot .wrap { padding-block: 52px 44px; display: grid; gap: 22px; font-size: .92rem; }
.site-foot .brand { color: #fff; }
.site-foot .foot-brand { display: grid; gap: 10px; max-width: 52ch; }
.site-foot nav { display: flex; gap: 8px 22px; flex-wrap: wrap; font-weight: 600; }
.site-foot nav a { color: var(--foot-ink); text-decoration: none; }
.site-foot nav a:hover { color: #fff; text-decoration: underline; }
.site-foot p { color: var(--foot-muted); }
.site-foot p a { color: var(--foot-ink); }
.site-foot .legal { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 18px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; } }


/* maker: chart preview stays in view while the form scrolls */
@media (min-width: 901px) { .tool .out { position: sticky; top: 76px; align-self: start; } }
#chart { cursor: pointer; }
input[type="text"] { font: inherit; font-size: .93rem; width: 100%; min-height: 42px; padding: 8px 11px; border-radius: var(--radius-sm); border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink); transition: border-color .15s, box-shadow .15s; }
input[type="text"]:hover { border-color: var(--muted); }
input[type="text"]:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-ring); }
details.gen { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
details.gen + details.gen { margin-top: 8px; }
details.gen summary { list-style: none; position: relative; cursor: pointer; font-weight: 700; padding: 11px 44px 11px 14px; }
details.gen summary::-webkit-details-marker { display: none; }
details.gen summary::after { content: ""; position: absolute; right: 18px; top: 50%; width: 8px; height: 8px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: translateY(-70%) rotate(45deg); transition: transform .2s; }
details.gen[open] summary::after { transform: translateY(-25%) rotate(-135deg); }
.gen-body { padding: 2px 14px 14px; display: grid; gap: 12px; }
.person label { display: block; font-size: .8rem; font-weight: 700; color: var(--ink-2); margin-bottom: 5px; }
.person .pair { grid-template-columns: 1.55fr 1fr; gap: 8px; }
.mini-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.mini-actions .btn { min-height: 38px; padding: 7px 13px; font-size: .87rem; }
.file-btn { position: relative; overflow: hidden; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.panel h3 { font-size: 1rem; }

/* template cards */
.tcards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 18px; }
.tcard { display: grid; grid-template-rows: auto 1fr; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: var(--ink); box-shadow: var(--shadow-sm); transition: border-color .15s, box-shadow .2s, transform .2s; }
.tcard:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); color: var(--ink); }
.tcard .thumb { aspect-ratio: 4 / 3; background: var(--bg-alt); display: grid; place-items: center; border-bottom: 1px solid var(--line); overflow: hidden; }
.tcard .thumb img { max-width: 92%; max-height: 92%; height: auto; box-shadow: 0 6px 18px -6px rgba(20, 32, 26, .35); }
.tcard .meta { padding: 14px 16px; display: grid; gap: 3px; }
.tcard .meta span { font-size: .85rem; color: var(--muted); }
.template-view { display: grid; gap: 16px; }
.relchart td, .relchart th { text-align: center; font-size: .86rem; }
.relchart th[scope="row"] { text-align: left; }

@media (max-width: 520px) { .canvas-wrap { padding: 8px; } }