/* Name Puzzle Maker: styles. Design tokens from the design handoff (option 2a). */

@font-face {
  font-family: 'Lexend';
  src: url('fonts/Lexend.ttf') format('truetype');
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('fonts/JetBrainsMono.ttf') format('truetype');
  font-weight: 100 800;
  font-display: swap;
}
@font-face {
  font-family: 'Andika';
  src: url('fonts/Andika-Bold.ttf') format('truetype');
  font-weight: 400 700;
  font-display: swap;
}

:root {
  --bg: #faf6f0;
  --surface: #ffffff;
  --ink: #2b2420;
  --muted: #6b6058;
  --ink-2: #4d433b;
  --line: #ebe2d6;
  --line-2: #e0d6c8;
  --line-3: #d9cfc0;
  --track: #efe7db;
  --track-2: #e8dfd3;
  --accent: #b8482c;
  --accent-dark: #9c3a22;
  --accent-tint: #fbe3d9;
  --accent-tint-2: #fff7f3;
  --teal: #1f6f78;
  --teal-ink: #17545b;
  --teal-1: #dcefee;
  --teal-2: #c7e2e0;
  --teal-3: #bfdcd9;
  --warn-bg: #fdf0d2;
  --warn-ink: #5c3a00;
  --clamp: #d9a24a;
  --clamp-ink: #7a4b00;
  --error: #c0392b;
  --error-ink: #a12a1e;
  --ui: 'Lexend', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --word: 'Andika', 'Lexend', system-ui, sans-serif;
  --pad-x: 40px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.5 var(--ui);
  overflow-x: hidden;
}
h1, h2, p { margin: 0; }
a { color: var(--accent); }
button, input { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 10;
  background: var(--ink); color: #fff; padding: 10px 14px; border-radius: 10px;
}
.skip-link:focus { top: 12px; }
:focus-visible { outline: none; }
a:focus-visible, button:focus-visible, summary:focus-visible, canvas:focus-visible {
  box-shadow: 0 0 0 4px var(--accent-tint), 0 0 0 2px var(--accent);
  border-radius: 8px;
}

/* ------------------------------------------------------------- header */
.intro {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 24px;
  padding: 32px var(--pad-x) 0;
}
h1 { font: 600 34px/1.15 var(--ui); letter-spacing: -0.01em; }
.sub { margin-top: 8px; color: var(--muted); font-size: 16px; }

/* ---------------------------------------------------------- workbench */
.workbench {
  display: grid; grid-template-columns: 400px minmax(0, 1fr); gap: 28px;
  padding: 24px var(--pad-x) 32px; align-items: start;
}
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 22px;
  padding: 26px; display: flex; flex-direction: column; gap: 22px;
}
.field { border: 0; margin: 0; padding: 0; min-width: 0; }
.label { display: block; font: 600 14px/1.3 var(--ui); margin: 0 0 8px; padding: 0; }
legend.label { margin-bottom: 8px; }
.label-row { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.help { margin-top: 8px; color: var(--muted); font-size: 13px; line-height: 1.45; }
.help.changed { color: var(--teal-ink); }
.help.error { color: var(--error-ink); font-weight: 500; }

.live-strip { display: none; }

/* name input */
.name-box {
  position: relative; display: flex; align-items: center;
  height: 68px; border: 2px solid var(--accent); border-radius: 16px; background: #fff;
  transition: box-shadow .15s;
}
.name-box:focus-within { box-shadow: 0 0 0 4px var(--accent-tint); }
.name-box.invalid { border-color: var(--error); }
.name-box input {
  flex: 1; min-width: 0; height: 100%; border: 0; background: transparent; outline: none;
  padding: 0 64px 0 18px; font: 700 34px/1 var(--word); color: var(--ink); border-radius: 14px;
}
.name-box input::placeholder { color: #cbbfb1; }
.counter { position: absolute; right: 16px; font: 400 12px/1 var(--mono); color: var(--muted); }
.counter.over { color: var(--error-ink); font-weight: 600; }

/* segmented controls (native radios inside labels) */
.segmented {
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 4px;
  background: var(--track); border-radius: 14px; padding: 4px;
}
.segmented label { position: relative; display: block; cursor: pointer; }
.segmented input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.segmented span {
  display: flex; align-items: center; justify-content: center; text-align: center;
  border-radius: 11px; color: var(--muted); padding: 0 10px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.segmented input:checked + span { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(0, 0, 0, .12); }
.segmented input:focus-visible + span { box-shadow: 0 0 0 3px var(--accent); }
.segmented.big span { height: 48px; font: 700 19px/1 var(--word); }
.segmented.small { background: var(--teal-3); border-radius: 12px; display: inline-grid; }
.segmented.small span { height: 34px; padding: 0 14px; font: 500 13px/1 var(--ui); color: var(--teal-ink); border-radius: 9px; }
.segmented.small input:checked + span { color: var(--ink); }

/* height slider */
#height-out { font-size: 14px; color: var(--muted); }
#height-out b { font-weight: 600; color: var(--ink); }
input[type=range] {
  --fill: 0%;
  -webkit-appearance: none; appearance: none; width: 100%; height: 28px; margin: 6px 0 0;
  background: transparent; cursor: pointer;
}
input[type=range]::-webkit-slider-runnable-track {
  height: 8px; border-radius: 4px;
  background: linear-gradient(to right, var(--accent) var(--fill), var(--track-2) var(--fill));
}
input[type=range]::-moz-range-track { height: 8px; border-radius: 4px; background: var(--track-2); }
input[type=range]::-moz-range-progress { height: 8px; border-radius: 4px; background: var(--accent); }
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 28px; height: 28px; margin-top: -10px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent); box-shadow: 0 2px 6px rgba(0, 0, 0, .15);
}
input[type=range]::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent); box-shadow: 0 2px 6px rgba(0, 0, 0, .15);
}
input[type=range]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px var(--accent-tint), 0 2px 6px rgba(0, 0, 0, .15); }
input[type=range]:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 4px var(--accent-tint); }
.ticks { position: relative; height: 14px; margin-top: 4px; font: 400 11px/1 var(--mono); color: var(--muted); }
.ticks span { position: absolute; top: 0; transform: translateX(-50%); white-space: nowrap; }
.ticks span:first-child { transform: none; }
.ticks span:last-child { transform: translateX(-100%); }

/* printers */
.printers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.printer {
  position: relative; display: flex; flex-direction: column; gap: 4px; min-height: 60px;
  padding: 12px; border: 1px solid var(--line-2); border-radius: 12px; background: #fff; cursor: pointer;
}
.printer input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.p-name { font: 400 14px/1.2 var(--ui); }
.p-bed { font: 400 11px/1.2 var(--mono); color: var(--muted); }
.printer:has(input:checked) { border: 2px solid var(--accent); background: var(--accent-tint-2); padding: 11px; }
.printer:has(input:checked) .p-name { font-weight: 600; }
.printer:has(input:focus-visible) { box-shadow: 0 0 0 4px var(--accent-tint); }
.custom-bed { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }

/* small labelled number fields */
.mini label { display: block; font: 400 12px/1.3 var(--ui); color: var(--muted); margin-bottom: 6px; }
.mini input {
  width: 100%; height: 44px; padding: 0 12px; border: 1px solid var(--line-3); border-radius: 10px;
  background: #fff; font: 400 14px/1 var(--mono); outline: none;
}
.mini input:focus-visible { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-tint); }
.mini input.clamped { border: 2px solid var(--clamp); padding: 0 11px; }
.clamp-note { margin-top: 6px; font-size: 12px; line-height: 1.4; color: var(--clamp-ink); }

/* advanced */
.advanced { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.advanced summary {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  min-height: 50px; cursor: pointer; list-style: none; font: 600 14px/1.3 var(--ui);
}
.advanced summary::-webkit-details-marker { display: none; }
.adv-summary { font: 400 13px/1.3 var(--ui); color: var(--muted); text-align: right; }
.adv-summary::after { content: ' ▾'; }
.advanced[open] .adv-summary::after { content: ' ▴'; }
.adv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 12px; padding: 4px 0 4px; }
.adv-grid .wide { grid-column: 1 / -1; }
.hint { margin: 12px 0 4px; font-size: 13px; color: var(--muted); }
.link-btn {
  background: none; border: 0; padding: 6px 0 14px; color: var(--accent); cursor: pointer;
  font: 500 13px/1.3 var(--ui); text-decoration: underline; text-underline-offset: 3px; min-height: 44px;
}

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 4px; flex-direction: column;
  min-height: 48px; padding: 10px 18px; border-radius: 14px; cursor: pointer; text-decoration: none;
  font: 600 15px/1.2 var(--ui); border: 1px solid transparent;
}
.btn.primary { background: var(--accent); color: #fff; box-shadow: 0 6px 16px rgba(184, 72, 44, .25); }
.btn.primary:hover { background: var(--accent-dark); }
.btn.primary.big { width: 100%; min-height: 58px; border-radius: 16px; font-size: 17px; }
.btn.secondary { background: #fff; border-color: var(--line-3); color: var(--ink); }
.btn.secondary:hover { border-color: var(--muted); }
.btn.teal { background: var(--teal); color: #fff; }
.btn[disabled], .btn[aria-disabled=true] { background: var(--track-2); color: var(--muted); box-shadow: none; cursor: not-allowed; }
.btn .fname { font: 400 11px/1.2 var(--mono); opacity: .92; }
.build-reason { text-align: center; }

/* ------------------------------------------------------------ results */
.results { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.preview-panel {
  background: var(--teal-1); border: 1px solid var(--teal-2); border-radius: 22px; overflow: hidden;
  display: flex; flex-direction: column;
}
.preview-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 18px; flex-wrap: wrap; }
.status-pill {
  background: #fff; color: var(--teal); border-radius: 999px; padding: 6px 12px;
  font: 600 12px/1.3 var(--ui);
}
.status-pill.busy { color: var(--teal-ink); }
.status-pill.bad { color: var(--error-ink); }
.viewport { position: relative; height: 440px; touch-action: pan-y; }
.viewport canvas { display: block; width: 100%; height: 100%; cursor: grab; }
.viewport canvas:active { cursor: grabbing; }
.zoom-btns { position: absolute; right: 14px; bottom: 14px; display: flex; flex-direction: column; gap: 6px; z-index: 2; }
.icon-btn {
  width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--teal-2); background: rgba(255, 255, 255, .85);
  color: var(--teal-ink); font: 500 22px/1 var(--ui); cursor: pointer;
}
.viewport-msg { position: absolute; inset: 0; display: grid; place-items: center; padding: 24px; text-align: center; color: var(--teal-ink); font-size: 14px; }
.preview-foot {
  display: flex; justify-content: space-between; gap: 12px; padding: 10px 18px;
  background: var(--teal-2); color: var(--teal-ink); font: 400 12px/1.4 var(--ui);
}
.foot-right { white-space: nowrap; }

/* building overlay */
.building {
  position: absolute; inset: 0; z-index: 3; display: grid; place-items: center; padding: 16px;
  background: rgba(220, 239, 238, .72); backdrop-filter: blur(2px);
}
.building-card {
  width: min(420px, 100%); background: #fff; border-radius: 18px; padding: 22px; border: 1px solid var(--teal-2);
  display: flex; flex-direction: column; gap: 12px; box-shadow: 0 10px 30px rgba(23, 84, 91, .12);
}
.building-card h2 { font: 600 19px/1.3 var(--ui); }
.building-card p { font-size: 14px; color: var(--muted); }
.progress { height: 6px; border-radius: 3px; background: #e8f2f1; overflow: hidden; position: relative; }
.progress span {
  position: absolute; top: 0; bottom: 0; width: 40%; border-radius: 3px; background: var(--teal);
  animation: sweep 1.6s ease-in-out infinite;
}
@keyframes sweep { 0% { left: -40%; } 100% { left: 100%; } }
@media (prefers-reduced-motion: reduce) { .progress span { animation-duration: 4s; } }
.build-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; font-size: 14px; color: var(--muted); }
.build-steps li { display: flex; align-items: center; gap: 10px; }
.build-steps li::before {
  content: ''; flex: none; width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--line-3);
}
.build-steps li.active { color: var(--ink); font-weight: 500; }
.build-steps li.active::before { border-color: var(--teal); border-right-color: transparent; animation: spin 1s linear infinite; }
.build-steps li.done { color: var(--ink); }
.build-steps li.done::before {
  border-color: var(--teal); background: var(--teal)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='white' stroke-width='2'/%3E%3C/svg%3E") center/14px no-repeat;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* notices: too wide / nothing fits / multi-plate / errors */
.notice {
  border-radius: 18px; padding: 18px 20px; background: #fff; border: 2px solid #f0c9bd;
  display: flex; flex-direction: column; gap: 10px;
}
.notice h2 { font: 600 17px/1.35 var(--ui); }
.notice p { font-size: 14px; color: var(--ink-2); }
.notice .actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.notice .actions .btn { flex: 0 1 auto; }
.notice.info { background: var(--teal-1); border: 0; color: var(--teal-ink); }
.notice.info p { color: var(--teal-ink); }
.notice.error { border-color: var(--error); }
.notice .kicker { font: 400 11px/1.2 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

/* stats */
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; min-width: 0; }
.stat-label { font-size: 12px; color: var(--muted); }
.stat-value { margin-top: 6px; font: 600 18px/1.3 var(--mono); overflow-wrap: anywhere; }
.stat-sub { margin-top: 2px; font-size: 12px; color: var(--muted); }

/* downloads */
.downloads { display: flex; flex-wrap: wrap; gap: 12px; align-items: stretch; }
.safety { flex: 1 1 280px; background: var(--warn-bg); color: var(--warn-ink); border-radius: 14px; padding: 14px 16px; font-size: 13px; line-height: 1.5; }
.dl-buttons { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; align-content: flex-start; flex: 0 1 auto; margin-left: auto; }
.dl-buttons .btn { min-height: 66px; }
.two-colour { flex-basis: 100%; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; background: var(--teal-1); border-radius: 14px; padding: 12px 16px; }
.two-colour p { flex: 1 1 260px; font-size: 13px; line-height: 1.5; color: var(--teal-ink); }
.downloads.stale .dl-two,
.downloads.stale .dl-buttons { opacity: .45; pointer-events: none; }
.stale-note { flex-basis: 100%; font-size: 13px; color: var(--clamp-ink); font-weight: 500; }

/* tips + footer */
.tips { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; padding: 8px var(--pad-x) 36px; }
.tips h2 { font: 600 15px/1.3 var(--ui); }
.tips p { margin-top: 6px; font-size: 14px; line-height: 1.55; color: var(--muted); }
.site-footer {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px;
  padding: 18px var(--pad-x); border-top: 1px solid var(--line); color: var(--muted); font-size: 13px;
}
.site-footer .credits { flex-basis: 100%; font-size: 12px; }
.site-footer a { color: var(--accent); }

/* ---------------------------------------------------------- responsive */
@media (max-width: 1100px) {
  .workbench { grid-template-columns: 360px minmax(0, 1fr); gap: 20px; }
  .dl-buttons { justify-content: stretch; }
  .dl-buttons .btn { flex: 1 1 160px; }
}

@media (max-width: 899px) {
  :root { --pad-x: 16px; }
  .intro { flex-direction: column; align-items: flex-start; padding-top: 24px; gap: 14px; }
  h1 { font-size: 28px; }
  .workbench { grid-template-columns: minmax(0, 1fr); padding-top: 18px; }
  .card { padding: 20px 16px; gap: 20px; border-radius: 20px; }
  .live-strip {
    display: flex; justify-content: center; align-items: center; min-height: 64px; padding: 10px;
    background: #f3ece2; border-radius: 16px; font: 700 40px/1 var(--word); letter-spacing: .02em;
    overflow: hidden; white-space: nowrap;
  }
  .live-strip:empty { display: none; }
  .viewport { height: 340px; }
  .build-bar {
    position: sticky; bottom: 0; z-index: 5; margin: 0 -16px -20px; padding: 12px 16px 16px;
    background: linear-gradient(to top, #fff 75%, rgba(255, 255, 255, 0));
    border-radius: 0 0 20px 20px;
  }
  .tips { grid-template-columns: 1fr; gap: 18px; }
  .site-footer { flex-direction: column; }
}

@media (max-width: 520px) {
  .printers { grid-template-columns: 1fr; }
  .printer { flex-direction: row; justify-content: space-between; align-items: center; min-height: 52px; }
  .stats { gap: 8px; }
  .stat { padding: 12px 10px; border-radius: 14px; }
  .stat-value { font-size: 14px; }
  .stat-label, .stat-sub { font-size: 11px; }
  .preview-top { padding: 10px 12px; }
  .preview-foot { flex-direction: column; gap: 2px; padding: 8px 12px; }
  .foot-right { white-space: normal; }
  .viewport { height: 300px; }
  .name-box input { font-size: 30px; }
}