/* Opal Rescue
   Night aubergine ground, opal play-of-colour as the single bold element.
   Kind colours follow the opal: honey = input, lilac = generate,
   lagoon = output, fire = unsupported. */

@font-face {
  font-family: "Bricolage";
  src: url("../fonts/bricolage.woff2") format("woff2");
  font-weight: 200 800;
  font-stretch: 75% 100%;
  font-display: swap;
}

:root {
  --night: #17131f;
  --night-2: #1f1a2a;
  --velvet: #2a2338;
  --line: rgba(237, 231, 245, 0.1);
  --line-strong: rgba(237, 231, 245, 0.22);
  --mist: #ede7f5;
  --dusk: #a79fb9;
  --honey: #ffd089;
  --lilac: #b49cff;
  --lagoon: #74e3d2;
  --fire: #ff8fb1;
  --milk: #fbf7ff;

  --display: "Bricolage", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  --body: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", "Meiryo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --wrap: 1080px;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }
body {
  margin: 0;
  background: var(--night);
  color: var(--mist);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: clip;
}
:lang(en) body, body:lang(en) { line-height: 1.6; }
a { color: inherit; }
a:hover { color: var(--milk); }
:focus-visible { outline: 2px solid var(--lagoon); outline-offset: 3px; border-radius: 6px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

/* ---------- the opal ---------- */
.opal-clip {
  position: absolute;
  inset: 0 0 auto 0;
  height: 1100px;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: linear-gradient(#000 60%, transparent);
  mask-image: linear-gradient(#000 60%, transparent);
}
.opal {
  position: absolute;
  top: -120px;
  right: max(-180px, calc(50% - 760px));
  width: min(760px, 120vw);
  aspect-ratio: 1;
  pointer-events: none;
  z-index: 0;
  filter: blur(60px) saturate(1.15);
  opacity: 0.55;
}
.opal i {
  position: absolute;
  border-radius: 50%;
  mix-blend-mode: screen;
  animation: drift 26s ease-in-out infinite alternate;
}
.opal i:nth-child(1) { inset: 18% 30% 34% 14%; background: radial-gradient(circle at 40% 40%, var(--lilac), transparent 70%); }
.opal i:nth-child(2) { inset: 30% 10% 20% 40%; background: radial-gradient(circle at 50% 50%, var(--lagoon), transparent 68%); animation-delay: -8s; }
.opal i:nth-child(3) { inset: 46% 36% 6% 20%; background: radial-gradient(circle at 50% 50%, var(--fire), transparent 66%); animation-delay: -14s; }
.opal i:nth-child(4) { inset: 10% 18% 52% 44%; background: radial-gradient(circle at 50% 50%, var(--honey), transparent 64%); opacity: .8; animation-delay: -20s; }
@keyframes drift {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(6%, -5%) scale(1.08); }
  100% { transform: translate(-5%, 4%) scale(0.95); }
}
@media (prefers-reduced-motion: reduce) {
  .opal i { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- header ---------- */
.bar {
  position: relative;
  z-index: 2;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 22px var(--gutter);
  display: flex;
  align-items: center;
  gap: 28px;
}
.mark {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.01em;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.mark::before {
  content: "";
  width: 18px; height: 20px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--milk), var(--lilac) 38%, var(--lagoon) 62%, var(--fire) 86%);
}
.links { display: flex; gap: 22px; margin-left: auto; font-size: 14px; color: var(--dusk); }
.links a { text-decoration: none; }
.lang {
  display: inline-flex;
  padding: 3px;
  border-radius: 999px;
  background: rgba(237, 231, 245, 0.06);
  border: 1px solid var(--line);
  font-size: 13px;
}
.lang a { padding: 5px 12px; border-radius: 999px; text-decoration: none; color: var(--dusk); }
.lang a[aria-current="true"] { background: var(--mist); color: var(--night); font-weight: 600; }
@media (max-width: 720px) {
  .links { display: none; }
  .lang { margin-left: auto; }
}

main, .foot { position: relative; z-index: 1; }

/* ---------- hero ---------- */
.hero {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(40px, 9vw, 104px) var(--gutter) 56px;
}
.countdown {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 28px;
  font-size: 14px;
  color: var(--honey);
}
.countdown::before {
  content: "";
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--honey);
  box-shadow: 0 0 0 4px rgba(255, 208, 137, 0.18);
}
h1 {
  font-family: var(--display);
  font-weight: 760;
  font-stretch: 88%;
  font-variation-settings: "opsz" 96;
  font-size: clamp(42px, 8.4vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 0;
  max-width: 12ch;
  white-space: pre-line;
}
:lang(ja) h1 {
  font-weight: 800;
  font-size: clamp(36px, 7vw, 84px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: none;
}
.lead {
  max-width: 36em;
  margin: 28px 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--dusk);
}
:lang(en) .lead { max-width: 33em; }

/* drop zone */
.drop {
  margin-top: clamp(36px, 6vw, 56px);
  border-radius: 28px;
  padding: 1px;
  background: linear-gradient(120deg, rgba(180, 156, 255, .45), rgba(116, 227, 210, .3) 40%, rgba(255, 143, 177, .3) 70%, rgba(255, 208, 137, .4));
  max-width: 760px;
  transition: transform .25s ease;
}
.drop-inner {
  border-radius: 27px;
  background: rgba(23, 19, 31, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: clamp(24px, 4vw, 40px);
  display: grid;
  gap: 18px;
}
.drop.over { transform: scale(1.01); }
.drop.over .drop-inner { background: rgba(42, 35, 56, 0.9); }
.drop-title {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.drop-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.drop-hint { margin: 0; font-size: 14px; color: var(--dusk); max-width: 40em; }
.drop-private {
  margin: 0;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--lagoon);
}
.drop-status { margin: 0; font-size: 14px; color: var(--lagoon); }
.drop-status:empty { display: none; }
.drop-status.error { color: var(--fire); }

/* buttons */
.btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  padding: 15px 24px;
  border-radius: 999px;
  display: inline-flex; align-items: center; gap: 8px;
  text-decoration: none;
  transition: background-color .15s, color .15s, transform .15s;
}
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--milk); color: var(--night); }
.btn.primary:hover { background: #fff; color: var(--night); }
.btn.ghost { background: rgba(237, 231, 245, 0.07); color: var(--mist); box-shadow: inset 0 0 0 1px var(--line-strong); }
.btn.ghost:hover { background: rgba(237, 231, 245, 0.13); }
.btn.small { padding: 10px 16px; font-size: 14px; }
label.btn:focus-within { outline: 2px solid var(--lagoon); outline-offset: 3px; }

/* ---------- results ---------- */
.results {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 24px var(--gutter) 40px;
  border-top: 1px solid var(--line);
}
.res-head { padding: 40px 0 8px; display: grid; gap: 10px; justify-items: start; }
.res-file { margin: 0; font-size: 13px; color: var(--dusk); }
.app-name {
  margin: 0;
  font-family: var(--display);
  font-weight: 720;
  font-size: clamp(30px, 4.6vw, 52px);
  letter-spacing: -0.025em;
  line-height: 1.08;
  overflow-wrap: anywhere;
}
.app-name:focus { outline: none; }
.app-desc { margin: 0; color: var(--dusk); max-width: 40em; overflow-wrap: anywhere; }
.facts { display: flex; flex-wrap: wrap; gap: 10px 36px; margin: 18px 0 14px; }
.facts div { display: grid; }
.facts dt { font-size: 13px; color: var(--dusk); }
.facts dd { margin: 0; font-family: var(--display); font-size: 34px; font-weight: 650; line-height: 1.15; font-variant-numeric: tabular-nums; }

.block { padding: 36px 0 0; }
.block-title { margin: 0 0 16px; font-size: 15px; font-weight: 600; color: var(--dusk); }
.section-title {
  margin: 0 0 20px;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 36px);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

/* flow map: one column per stage */
.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(200px, 1fr);
  gap: 34px;
  overflow-x: auto;
  padding-bottom: 6px;
}
.stage { position: relative; display: grid; align-content: center; gap: 12px; }
.stage + .stage::before {
  content: "";
  position: absolute;
  left: -27px; top: 50%;
  width: 20px; height: 20px;
  margin-top: -10px;
  background: no-repeat center / 16px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M2 8h11M9 4l4 4-4 4' fill='none' stroke='%23a79fb9' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.stage.parallel {
  padding: 30px 12px 12px;
  border-radius: 22px;
  border: 1px dashed var(--line-strong);
}
.stage-tag {
  position: absolute; top: 8px; left: 14px;
  font-size: 12px; color: var(--lagoon);
}
.node {
  --k: var(--lilac);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 12px;
  align-items: center;
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  background: var(--night-2);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  cursor: pointer;
  position: relative;
}
.node:hover { border-color: var(--line-strong); }
.node[data-kind="input"] { --k: var(--honey); }
.node[data-kind="output"] { --k: var(--lagoon); }
.node[data-kind="unknown"], .node[data-kind="tool"] { --k: var(--fire); border-style: dashed; }
.node-num {
  grid-row: span 2;
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 700; font-size: 15px;
  color: var(--night);
  background: var(--k, var(--lilac));
}
.node-num[data-kind="input"] { --k: var(--honey); }
.node-num[data-kind="output"] { --k: var(--lagoon); }
.node-num[data-kind="unknown"], .node-num[data-kind="tool"] { --k: var(--fire); }
.n8n-reason { margin-top: 28px; }
.node-title { font-weight: 600; line-height: 1.35; overflow-wrap: anywhere; }
.node-kind { font-size: 12px; color: var(--dusk); }
.node-flag {
  position: absolute; top: 10px; right: 12px;
  width: 8px; height: 8px; border-radius: 50%;
}
.node-flag.partial { background: var(--honey); }
.node-flag.none { background: var(--fire); }
.parallel-note { font-size: 13px; color: var(--dusk); margin: 14px 0 0; }

@media (max-width: 720px) {
  .flow { grid-auto-flow: row; grid-auto-columns: auto; gap: 30px; overflow: visible; }
  .stage + .stage::before { left: 50%; top: -26px; margin: 0 0 0 -10px; transform: rotate(90deg); }
}

/* lists */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
@media (max-width: 720px) { .split { grid-template-columns: 1fr; gap: 0; } }
ul.plain { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
ul.plain li { position: relative; padding-left: 20px; overflow-wrap: anywhere; }
ul.plain li::before {
  content: ""; position: absolute; left: 2px; top: .7em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--lagoon);
}
#manual li::before { background: var(--honey); }
#manual li.none::before { background: var(--fire); }
ul.warn li::before { background: var(--fire); }
ul.plain li small { display: block; color: var(--dusk); font-size: 14px; }
ul.dash li::before { width: 10px; height: 1.5px; border-radius: 0; background: var(--dusk); top: .85em; }
.muted { color: var(--dusk); }

/* step details */
.step {
  border-top: 1px solid var(--line);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
}
.step summary::-webkit-details-marker { display: none; }
.step summary .node-num { grid-row: auto; }
.step summary::after {
  content: "";
  width: 10px; height: 10px;
  border-right: 1.5px solid var(--dusk); border-bottom: 1.5px solid var(--dusk);
  transform: rotate(45deg) translateY(-3px);
  transition: transform .2s;
}
.step[open] summary::after { transform: rotate(225deg) translateY(-1px); }
.step-head { display: grid; }
.step-body { padding: 0 0 24px 46px; display: grid; gap: 18px; }
@media (max-width: 560px) { .step-body { padding-left: 0; } }
.step-meta { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 14px; color: var(--dusk); margin: 0; }
.step-meta b { color: var(--mist); font-weight: 600; }
.prompt h4 { margin: 0 0 8px; font-size: 13px; font-weight: 600; color: var(--dusk); }
.prompt pre, .preview pre {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.7;
  background: rgba(237, 231, 245, 0.04);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
}
.ref {
  border-radius: 6px;
  padding: 1px 6px;
  background: rgba(180, 156, 255, 0.16);
  color: var(--lilac);
  white-space: nowrap;
}
.ref.input { background: rgba(255, 208, 137, 0.14); color: var(--honey); }
.ref.tool, .ref.asset { background: rgba(116, 227, 210, 0.13); color: var(--lagoon); }
.intent { margin: 0; font-size: 15px; overflow-wrap: anywhere; }
.prompt.sub summary { cursor: pointer; font-size: 13px; font-weight: 600; color: var(--dusk); margin-bottom: 8px; }
.prompt.sub pre { max-height: 320px; overflow: auto; font-size: 14px; }
.reasons { margin: 0; padding-left: 18px; color: var(--honey); font-size: 14px; }
.step[data-level="none"] .reasons { color: var(--fire); }

/* ---------- export ---------- */
.export { padding-top: 64px; }
.tabs {
  display: inline-flex; flex-wrap: wrap; gap: 4px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(237, 231, 245, 0.06);
  border: 1px solid var(--line);
  margin-bottom: 26px;
}
.tabs button {
  appearance: none; border: 0; cursor: pointer;
  font: inherit; font-size: 14px; font-weight: 600;
  color: var(--dusk);
  background: transparent;
  padding: 9px 16px;
  border-radius: 999px;
}
.tabs button[aria-selected="true"] { background: var(--mist); color: var(--night); }
.panel { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 36px; align-items: start; }
@media (max-width: 860px) { .panel { grid-template-columns: 1fr; } }
.panel-lead { margin: 0 0 18px; font-size: 17px; }
.panel-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 8px; }
.panel-note { font-size: 13px; color: var(--dusk); margin: 14px 0 0; }
.numbered { margin: 0; padding: 0; list-style: none; counter-reset: n; display: grid; gap: 12px; }
.numbered li { counter-increment: n; display: grid; grid-template-columns: 28px 1fr; gap: 10px; }
.numbered li::before {
  content: counter(n);
  width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 700; font-size: 13px;
  border: 1px solid var(--line-strong);
  margin-top: 1px;
}
.preview { min-width: 0; }
.preview-label { font-size: 13px; color: var(--dusk); margin: 0 0 8px; display: flex; justify-content: space-between; gap: 12px; }
.preview pre { font-family: var(--mono); font-size: 13px; line-height: 1.65; max-height: 460px; overflow: auto; }
.map { width: 100%; border-collapse: collapse; font-size: 14px; }
.map th, .map td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.map th { color: var(--dusk); font-weight: 500; font-size: 13px; }
.map td.off { color: var(--fire); }
.toast { font-size: 13px; color: var(--lagoon); align-self: center; }

/* ---------- other apps ---------- */
.promo {
  max-width: var(--wrap);
  margin: 48px auto 0;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
}
.promo-art {
  width: 64px; height: 88px;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  background: var(--night-2);
  display: grid; grid-template-rows: 1fr 1fr; gap: 8px;
  padding: 8px;
  position: relative;
}
.promo-art span { border-radius: 6px; background: linear-gradient(160deg, rgba(180,156,255,.5), rgba(116,227,210,.35)); }
.promo-art::after {
  content: ""; position: absolute; left: -6px; right: -6px; top: 50%;
  border-top: 1.5px dashed var(--fire);
}
.promo-label { margin: 0; font-size: 13px; color: var(--dusk); }
.promo-title { margin: 2px 0 4px; font-family: var(--display); font-weight: 700; font-size: 22px; letter-spacing: -0.01em; }
.promo-body { margin: 0; font-size: 15px; color: var(--dusk); max-width: 34em; }
.promo-actions { display: grid; gap: 10px; justify-items: end; }
.promo-kofi, .tip a { color: var(--honey); font-size: 14px; }
.tip { margin: 6px 0 0; font-size: 14px; color: var(--dusk); }
@media (max-width: 720px) {
  .promo { grid-template-columns: auto minmax(0, 1fr); margin-top: 56px; }
  .promo-actions { grid-column: 1 / -1; justify-items: start; }
}

/* ---------- info ---------- */
.info {
  max-width: var(--wrap);
  margin: 64px auto 0;
  padding: 72px var(--gutter) 40px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
  border-top: 1px solid var(--line);
}
.info .section-title { font-size: 24px; }
.info p, .info li { color: var(--dusk); font-size: 15px; }
@media (max-width: 860px) { .info { grid-template-columns: 1fr; gap: 40px; padding-top: 56px; } }

.foot {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 32px var(--gutter) 56px;
  font-size: 13px;
  color: var(--dusk);
}
.foot p { margin: 0 0 6px; max-width: 60em; }
.noscript { text-align: center; color: var(--fire); }