/* Generator hub and tool pages. Depends on tokens.css + shell.css. */

.gen-hero { display: grid; gap: var(--sp-4); max-width: 880px; padding-block: var(--sp-5) var(--sp-6); }
.gen-hero h1 { font-size: var(--fs-3xl); }
.gen-hero .lede { max-width: 46rem; }

/* ---------- Tool ---------- */
.gen-tool {
  display: grid; grid-template-columns: minmax(250px, 300px) minmax(0, 1fr); gap: var(--sp-5);
  grid-template-areas: "controls stage" "controls details";
  padding: var(--sp-5); margin-bottom: var(--sp-8);
  border: 1px solid var(--c-line-strong); border-radius: var(--r-xl); background: var(--c-bg-raised); box-shadow: var(--shadow-lg);
}
.gen-tool__controls { grid-area: controls; display: grid; align-content: start; gap: var(--sp-4); }
.gen-tool__heading { font-size: var(--fs-lg); font-weight: 600; }
.field { display: grid; gap: var(--sp-2); margin: 0; padding: 0; border: 0; min-width: 0; }
.field > label, .field legend { padding: 0; color: var(--c-text-muted); font-size: var(--fs-sm); font-weight: 600; }
.field__row { display: flex; gap: var(--sp-2); }
.field input:not([type=radio]), .field select {
  width: 100%; min-height: 44px; padding: .55rem .75rem; border: 1px solid var(--c-line-strong); border-radius: var(--r-md);
  background: var(--c-surface); color: var(--c-text); font: 500 var(--fs-md) var(--ff-sans);
}
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--c-text-muted) 50%), linear-gradient(135deg, var(--c-text-muted) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2rem; }
.field input:focus-visible, .field select:focus-visible { border-color: var(--c-accent); }
.field__hint { color: var(--c-text-subtle); font-size: var(--fs-xs); }
.btn--icon { flex: none; width: 44px; padding: 0; }
.styles__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-2); }
.style-chip { position: relative; display: flex; align-items: center; gap: .55rem; min-height: 40px; padding: .4rem .65rem; border: 1px solid var(--c-line-strong); border-radius: var(--r-md); background: var(--c-surface); cursor: pointer; font-size: var(--fs-sm); }
.style-chip input { position: absolute; opacity: 0; pointer-events: none; }
.style-chip span::before { content: ""; display: inline-block; width: 14px; height: 14px; margin-right: .5rem; vertical-align: -2px; border-radius: 3px; border: 1px solid rgba(0, 0, 0, .4); background: var(--swatch); }
.style-chip--parchment { --swatch: #eadcb7; }
.style-chip--ink { --swatch: #f4f2ec; }
.style-chip--atlas { --swatch: linear-gradient(135deg, #cfe0b4 50%, #8db8d6 50%); }
.style-chip--dark { --swatch: #263040; }
.style-chip:has(input:checked) { border-color: var(--c-accent); background: var(--c-accent-soft); }
.style-chip:has(input:focus-visible) { outline: 2px solid var(--c-focus); outline-offset: 2px; }
.gen-tool__go { width: 100%; }

.gen-tool__stage { grid-area: stage; display: grid; gap: var(--sp-4); min-width: 0; }
.gen-tool__head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: var(--sp-2) var(--sp-5); }
.gen-tool__title { font: 600 var(--fs-xl)/1.2 var(--ff-display); }
.gen-tool__meta { color: var(--c-text-muted); font-size: var(--fs-sm); }
.gen-tool__status { color: var(--c-text-subtle); font-size: var(--fs-xs); font-variant-numeric: tabular-nums; }
.gen-tool__canvas { position: relative; overflow: hidden; border: 1px solid var(--c-line); border-radius: var(--r-lg); background: var(--c-surface-2); }
.gen-tool__canvas--city { aspect-ratio: 1; max-height: 78vh; margin-inline: auto; width: 100%; max-width: min(100%, 78vh); }
.gen-tool__canvas--world { aspect-ratio: 16 / 10; }
.gen-tool__canvas img, .gen-tool__canvas canvas { width: 100%; height: 100%; object-fit: contain; }
.gen-tool[aria-busy=true] .gen-tool__canvas::after {
  content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, .22) 50%, transparent 70%) 0 0 / 220% 100%;
  animation: gen-shimmer 1.1s linear infinite;
}
@keyframes gen-shimmer { to { background-position: -220% 0; } }
.gen-tool__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3); }
.gen-tool__fine { flex: 1 1 260px; color: var(--c-text-subtle); font-size: var(--fs-xs); }
.gen-tool__fine a { color: var(--c-text-muted); }
.gen-tool__details { grid-area: details; display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); align-content: start; }
.gen-tool__details:empty { display: none; }
.gen-detail-lede { grid-column: 1 / -1; color: var(--c-text-muted); }
.gen-detail h3 { margin-bottom: var(--sp-2); color: var(--c-text-subtle); font-size: var(--fs-xs); letter-spacing: .12em; text-transform: uppercase; }
.gen-detail dl { display: grid; gap: var(--sp-2); margin: 0; }
.gen-detail dl div { display: grid; gap: 2px; }
.gen-detail dt { font-weight: 600; font-size: var(--fs-sm); }
.gen-detail dd { margin: 0; color: var(--c-text-muted); font-size: var(--fs-sm); }

@media (max-width: 1000px) {
  .gen-tool { grid-template-columns: 1fr; grid-template-areas: "stage" "controls" "details"; padding: var(--sp-4); }
  .gen-tool__details { padding-top: var(--sp-4); border-top: 1px solid var(--c-line); }
  .gen-tool__canvas--city { max-width: 100%; max-height: none; }
}
@media (max-width: 640px) {
  .gen-tool { margin-inline: calc(var(--gutter) * -1 + 8px); border-radius: var(--r-lg); }
  .gen-tool__details { grid-template-columns: 1fr; }
  .gen-tool__actions .btn { flex: 1 1 auto; }
}

/* ---------- Content blocks ---------- */
.split { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 1rem + 4vw, 4rem); align-items: start; }
.split--media-first { grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); }
@media (max-width: 1000px) { .split, .split--media-first { grid-template-columns: 1fr; } }
.prose { display: grid; gap: var(--sp-4); max-width: var(--w-prose); }
.prose--wide { max-width: 1100px; }
.prose h2 { font-size: var(--fs-2xl); }
.prose p, .prose li { color: var(--c-text-muted); }
.prose b { color: var(--c-text); font-weight: 600; }
.steps { display: grid; gap: var(--sp-3); margin: 0; padding-left: 1.3rem; }
.steps li::marker { color: var(--c-accent); font-weight: 700; }
.steps--columns { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-4) var(--sp-7); }
@media (max-width: 760px) { .steps--columns { grid-template-columns: 1fr; } }
.spec { display: grid; gap: var(--sp-4); padding: var(--sp-5); }
.spec h3 { font-size: var(--fs-lg); }
.spec table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.spec th, .spec td { padding: .6rem 0; border-bottom: 1px solid var(--c-line); text-align: left; vertical-align: top; }
.spec th { width: 34%; padding-right: var(--sp-3); font-weight: 600; }
.spec td { color: var(--c-text-muted); }
.spec-figure { margin: 0; display: grid; gap: var(--sp-2); }
.spec-figure img { width: 100%; border: 1px solid var(--c-line); border-radius: var(--r-lg); box-shadow: var(--shadow-md); }
.spec-figure figcaption { color: var(--c-text-subtle); font-size: var(--fs-sm); }

.examples { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--sp-4); }
.examples--wide { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.example { margin: 0; display: grid; gap: var(--sp-2); }
.example a { display: block; overflow: hidden; border: 1px solid var(--c-line); border-radius: var(--r-lg); }
.example img { width: 100%; transition: scale .4s var(--ease-out); }
.example a:hover img { scale: 1.03; }
.example figcaption { display: grid; gap: 2px; font-size: var(--fs-sm); }
.example figcaption span { color: var(--c-text-subtle); font-size: var(--fs-xs); }
@media (max-width: 1000px) { .examples, .examples--wide { grid-template-columns: 1fr 1fr; } }


/* ---------- Hub ---------- */
.hub { display: grid; gap: var(--sp-6); }
.hub__item { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); overflow: hidden; border: 1px solid var(--c-line); border-radius: var(--r-xl); background: var(--c-surface); }
.hub__item:nth-child(even) { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.hub__item:nth-child(even) .hub__media { order: 2; }
.hub__media { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--c-surface-2); }
.hub__media img { width: 100%; height: 100%; object-fit: cover; }
.hub__media img[src*="dungeon-generator"] { object-fit: contain; background: #000; }
.hub__body { display: grid; align-content: center; gap: var(--sp-4); padding: clamp(1.5rem, 1rem + 2vw, 3rem); }
.hub__body h3 { font-size: var(--fs-2xl); }
.hub__body h3 a { text-decoration: none; }
.hub__body h3 a:hover { color: var(--c-accent); }
.hub__body p { color: var(--c-text-muted); }
.hub__body .btn { justify-self: start; }
.hub__facts { display: grid; gap: var(--sp-2); margin: 0; font-size: var(--fs-sm); }
.hub__facts div { display: grid; grid-template-columns: 7.5rem 1fr; gap: var(--sp-3); }
.hub__facts dt { color: var(--c-text-subtle); }
.hub__facts dd { margin: 0; color: var(--c-text-muted); }
@media (max-width: 860px) {
  .hub__item, .hub__item:nth-child(even) { grid-template-columns: 1fr; }
  .hub__item:nth-child(even) .hub__media { order: 0; }
  .hub__facts div { grid-template-columns: 1fr; gap: 0; }
}
.link-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-3); margin: 0; padding: 0; list-style: none; }
.link-list a { display: block; padding: var(--sp-4) var(--sp-5); border: 1px solid var(--c-line); border-radius: var(--r-md); background: var(--c-surface); color: var(--c-text); text-decoration: none; font-weight: 500; }
.link-list a:hover { border-color: var(--c-accent); }
@media (max-width: 760px) { .link-list { grid-template-columns: 1fr; } }

/* ---------- Related + CTA ---------- */
.related { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--sp-4); }
.related__card { display: grid; grid-template-columns: 112px 1fr; gap: var(--sp-4); align-items: center; padding: var(--sp-3); border: 1px solid var(--c-line); border-radius: var(--r-lg); background: var(--c-surface); text-decoration: none; }
.related__card:hover { border-color: rgba(232, 178, 92, .45); }
.related__card img { width: 112px; height: 76px; object-fit: cover; border-radius: var(--r-sm); }
.related__card span { display: grid; gap: 4px; }
.related__card small { color: var(--c-text-muted); font-size: var(--fs-sm); }
.cta-row { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-3); }