/* Page-specific layout, scoped by body class. Components live in
   components.css; the features page and demo windows in features.css. */

/* ---------- Home: iron-filings hero ---------- */
.page-home .hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: min(100svh - var(--header-h), 900px);
  display: flex; align-items: flex-end;
  padding-block: var(--sp-24) var(--sp-16);
  margin-top: calc(-1 * var(--header-h)); padding-top: calc(var(--header-h) + var(--sp-24));
}
.hero__field { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; }
/* Keep the copy legible over the field: a soft steel fade from the left and bottom. */
.page-home .hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    linear-gradient(90deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 70%, transparent) 38%, transparent 70%),
    linear-gradient(0deg, var(--bg) 0%, transparent 35%);
}
.hero__inner { position: relative; }
.hero__title { font-size: var(--fs-hero); line-height: 0.9; max-width: none; margin-bottom: var(--sp-6); text-wrap: initial; }
.hero__line { display: block; }
.hero__lead { font-size: var(--fs-lg); color: var(--text-muted); max-width: 46ch; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin: var(--sp-8) 0 var(--sp-6); }
.hero__note { margin: var(--sp-4) 0 0; font-size: var(--fs-sm); color: var(--text-faint); }

/* The one orchestrated load: each line rises in hot (straw) and cools to steel. */
.js .hero__line { animation: hero-cool 1.6s var(--ease) both; }
.js .hero__line + .hero__line { animation-delay: 0.18s; }
.js .hero__lead, .js .hero__ctas, .js .page-home .install-cmd, .js .hero__note { animation: hero-rise 0.9s var(--ease) both; }
.js .hero__lead { animation-delay: 0.45s; }
.js .hero__ctas { animation-delay: 0.55s; }
.js .page-home .install-cmd { animation-delay: 0.65s; }
.js .hero__note { animation-delay: 0.75s; }
@keyframes hero-cool {
  0% { opacity: 0; transform: translateY(0.35em); color: var(--straw-soft); text-shadow: 0 0 40px color-mix(in srgb, var(--straw) 80%, transparent); }
  35% { opacity: 1; color: var(--straw); }
  65% { color: color-mix(in srgb, var(--bronze) 50%, var(--text)); text-shadow: 0 0 24px color-mix(in srgb, var(--bronze) 40%, transparent); }
  100% { opacity: 1; transform: none; color: var(--text); text-shadow: none; }
}
@keyframes hero-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

/* ---------- Home: the four main apps ----------
   Tabs run across the top; the demo is large, its features sit beside it. */
.showcase .section-header { max-width: none; margin-bottom: var(--sp-8); }
.showcase__tabs {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--border-strong); margin-bottom: var(--sp-12);
}
.showcase__tab {
  position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr); column-gap: var(--sp-4); align-items: center;
  width: 100%; padding: var(--sp-4) var(--sp-4) var(--sp-6); border: 0; background: transparent;
  color: var(--text-muted); text-align: left; font: inherit; cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}
.showcase__tab .app-logo { grid-row: span 2; opacity: 0.6; filter: saturate(0.4); transition: opacity 0.2s var(--ease), filter 0.2s var(--ease); }
.showcase__name { font: 700 clamp(1.25rem, 1rem + 0.7vw, 1.6rem)/1 var(--font-display); letter-spacing: 0.01em; color: var(--text-muted); }
.showcase__kind { font-size: var(--fs-sm); }
/* The accent bar sits on the rule under the tabs. */
.showcase__tab::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px;
  background: var(--app-accent); transform: scaleX(0); transform-origin: left; transition: transform 0.35s var(--ease);
}
.showcase__tab:hover .showcase__name { color: var(--text); }
.showcase__tab[aria-selected="true"] { background: linear-gradient(0deg, color-mix(in srgb, var(--app-accent) 10%, transparent), transparent 80%); }
.showcase__tab[aria-selected="true"] .showcase__name { color: var(--text); }
.showcase__tab[aria-selected="true"]::after { transform: scaleX(1); }
.showcase__tab[aria-selected="true"] .app-logo, .showcase__tab:hover .app-logo { opacity: 1; filter: none; }

.showcase__panel { display: grid; gap: var(--sp-8); align-items: center; min-width: 0; }
@media (min-width: 960px) { .showcase__panel { grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: var(--sp-12); } }
.showcase__panel[hidden] { display: none; }
.showcase__demo { min-width: 0; }
.showcase__demo .demo__body { min-height: 400px; }
.js .showcase__panel:not([hidden]) { animation: panel-in 0.45s var(--ease) both; }
@keyframes panel-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
html:not(.js) .showcase__panel[hidden] { display: grid; margin-top: var(--sp-16); }
.showcase__info { min-width: 0; }
.showcase__summary { font-size: var(--fs-lg); color: var(--text); margin-bottom: var(--sp-6); }
.showcase__features { list-style: none; margin: 0 0 var(--sp-6); padding: 0; border-top: 1px solid var(--border); }
.showcase__features li {
  position: relative; padding: var(--sp-3) 0 var(--sp-3) var(--sp-6);
  border-bottom: 1px solid var(--border); color: var(--text-muted); font-size: var(--fs-sm);
}
.showcase__features li::before {
  content: ""; position: absolute; left: 0; top: calc(var(--sp-3) + 0.62em); width: 10px; height: 2px; background: var(--app-accent);
}
.showcase__more { font-weight: 600; }

/* The other six apps: a title line, then one row of logos. */
.more-apps {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--sp-4) var(--sp-8); align-items: baseline;
  margin-top: var(--sp-16); padding-top: var(--sp-6); border-top: 1px solid var(--border);
}
.more-apps__title { margin: 0; font-size: var(--fs-base); color: var(--text-muted); }
.more-apps__all { font-weight: 600; white-space: nowrap; }
.more-apps .app-strip { grid-column: 1 / -1; grid-row: 2; margin: 0; grid-template-columns: repeat(auto-fill, minmax(min(100%, 11rem), 1fr)); }
@media (min-width: 1100px) { .more-apps .app-strip { grid-template-columns: repeat(6, minmax(0, 1fr)); } }
.more-apps .app-strip__link { padding: var(--sp-3); font-size: var(--fs-sm); white-space: nowrap; }
@media (max-width: 559px) { .more-apps .app-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); } .more-apps .app-strip__link { white-space: normal; line-height: 1.25; } }

@media (max-width: 759px) {
  .showcase__tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: var(--sp-8); border-bottom: 0; }
  .showcase__tab { padding: var(--sp-3); column-gap: var(--sp-3); border-bottom: 1px solid var(--border-strong); }
  .showcase__tab .app-logo { width: 32px; height: 32px; }
  .showcase__kind { display: none; }
  .showcase__name { font-size: 1.2rem; }
  .showcase__demo .demo__body { min-height: 300px; }
}

/* ---------- Home: native, drawn as two software stacks ---------- */
.native { border-block: 1px solid var(--border); background: var(--bg-elev); }
.native__inner { display: grid; gap: var(--sp-12) var(--sp-16); align-items: center; }
@media (min-width: 960px) { .native__inner { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.native h2 { font-size: var(--fs-3xl); max-width: 11ch; }
.native__facts { margin: var(--sp-8) 0 0; display: grid; gap: var(--sp-6) var(--sp-8); grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.native__facts div { padding-top: var(--sp-4); border-top: 1px solid var(--border-strong); }
.native__facts dt { font-weight: 600; margin-bottom: var(--sp-2); }
.native__facts dd { margin: 0; color: var(--text-muted); font-size: var(--fs-sm); }

.stack { margin: 0; min-width: 0; }
.stack__cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-4); align-items: end; }
.stack__name { margin: 0 0 var(--sp-3); font-weight: 600; font-size: var(--fs-sm); }
.stack__layers { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.stack__layers li {
  display: flex; align-items: center; min-height: 3.5rem; padding: 0 var(--sp-4);
  border-radius: var(--radius-sm); font-size: var(--fs-sm); line-height: 1.25;
}
/* Ferrum: three layers, heated through the temper colours. */
.stack__col--ferrum .stack__name { color: var(--text); }
.stack__col--ferrum li { color: var(--on-color); font-weight: 600; }
.stack__col--ferrum li:nth-child(1) { background: var(--straw); }
.stack__col--ferrum li:nth-child(2) { background: color-mix(in srgb, var(--bronze) 85%, var(--straw)); }
.stack__col--ferrum li:nth-child(3) { background: color-mix(in srgb, var(--violet) 80%, var(--bronze)); color: var(--on-violet); }
/* The browser stack: cold, outlined, one layer taller. */
.stack__col--web .stack__name { color: var(--text-muted); }
.stack__col--web li { border: 1px dashed var(--border-strong); color: var(--text-muted); background: color-mix(in srgb, var(--surface) 55%, transparent); }
.stack__base {
  margin: 6px 0 0; padding: var(--sp-3) var(--sp-4); border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text); font-weight: 600; font-size: var(--fs-sm); text-align: center;
}
.stack figcaption { margin-top: var(--sp-4); font-size: var(--fs-sm); color: var(--text-muted); }

/* ---------- Home: install, a four-step track ---------- */
.install-flow__head { display: grid; gap: var(--sp-4) var(--sp-16); align-items: end; margin-bottom: var(--sp-16); }
@media (min-width: 960px) { .install-flow__head { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.install-flow__head h2 { margin: 0; max-width: 18ch; }
.install-flow__head .lead { margin: 0; }
.track { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-8); counter-reset: track; }
.track__step { position: relative; counter-increment: track; min-width: 0; }
.track__step::before {
  content: counter(track); display: grid; place-items: center; width: 3rem; height: 3rem; margin-bottom: var(--sp-6);
  border-radius: 50%; border: 2px solid var(--straw); background: var(--bg);
  font: 800 1.5rem/1 var(--font-display); color: var(--straw);
  position: relative; z-index: 1;
}
.track__step:first-child::before { background: var(--straw); color: var(--accent-text); }
:root[data-theme="light"] .track__step::before { border-color: var(--link); color: var(--link); }
:root[data-theme="light"] .track__step:first-child::before { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.track__title { margin-bottom: var(--sp-2); }
.track__step p { margin: 0; color: var(--text-muted); font-size: var(--fs-sm); max-width: 30ch; }
@media (min-width: 760px) {
  /* The temper rule runs from the first step's node to the last one's. */
  .track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    background: var(--temper) no-repeat 1.5rem calc(1.5rem - 1px) / calc(75% + 0.75 * var(--sp-8)) 2px;
  }
}
@media (max-width: 759px) {
  .track { gap: var(--sp-6); }
  .track__step { display: grid; grid-template-columns: 3rem minmax(0, 1fr); column-gap: var(--sp-4); }
  .track__step::before { grid-row: span 2; margin: 0; }
  .track__step:not(:last-child)::after {
    content: ""; position: absolute; left: calc(1.5rem - 1px); top: 3rem; bottom: calc(-1 * var(--sp-6)); width: 2px;
    background: linear-gradient(var(--straw), var(--bronze));
  }
}
.page-home .install-flow__cta { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-12); }
/* Follow the updates: a quiet line closing the page, not another card. */
.page-home .follow {
  margin-top: var(--sp-16); padding: var(--sp-8) 0 0; border: 0; border-top: 1px solid var(--border);
  border-radius: 0; background: none;
}
.page-home .follow__title { font-size: var(--fs-xl); }
.page-home .follow__lead { font-size: var(--fs-sm); }
.page-home .install-flow { padding-bottom: var(--sp-16); }

/* ---------- Apps index (/apps) ---------- */
.app-group { padding-block: var(--sp-16) 0; }
.app-group__head { display: grid; gap: var(--sp-2) var(--sp-12); align-items: baseline; margin-bottom: var(--sp-8); }
@media (min-width: 960px) { .app-group__head { grid-template-columns: minmax(0, auto) minmax(0, 1fr); } }
.app-group__head h2 { margin: 0; font-size: var(--fs-2xl); }
.app-group__head p { margin: 0; color: var(--text-muted); }
.app-row {
  position: relative; display: grid; gap: var(--sp-4) var(--sp-12);
  padding: var(--sp-8) 0; border-top: 1px solid var(--border);
  scroll-margin-top: var(--header-h);
}
.app-row::before {
  content: ""; position: absolute; left: 0; top: -1px; width: 4rem; height: 2px; background: var(--app-accent);
}
@media (min-width: 960px) {
  .app-row { grid-template-columns: 17rem minmax(0, 0.9fr) minmax(0, 1.2fr); align-items: start; }
}
.app-row__id { display: flex; gap: var(--sp-4); align-items: center; }
.app-row__logo { width: 56px; height: 56px; }
.app-row__name { margin: 0 0 var(--sp-1); font: 800 1.9rem/1 var(--font-display); letter-spacing: 0.01em; }
.app-row__name a { color: var(--text); text-decoration: none; }
.app-row__name a:hover { text-decoration: underline; text-decoration-color: var(--app-accent); text-decoration-thickness: 2px; }
.app-row__kind { margin: 0; display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); font-size: var(--fs-sm); color: var(--text-muted); }
.app-row__summary { margin: 0 0 var(--sp-3); color: var(--text); }
.app-row__more { font-weight: 600; font-size: var(--fs-sm); }
.app-row__features { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-2); }
.app-row__features li { position: relative; padding-left: var(--sp-6); color: var(--text-muted); font-size: var(--fs-sm); }
.app-row__features li::before {
  content: ""; position: absolute; left: 0; top: 0.68em; width: 10px; height: 2px; background: var(--app-accent);
}
.page-apps .cta { margin-top: var(--sp-16); }

/* ---------- Product pages (header: .page-header--app in components.css) ---------- */
.page-product .product-preview { padding-top: var(--sp-12); }
.page-product .product-preview__demo .demo__body { min-height: 380px; }
.page-product .product-shot { margin: 0; min-width: 0; }
.page-product .product-shot figcaption { margin-top: var(--sp-3); font-size: var(--fs-sm); }
.page-product .product-credit h2 { font-size: var(--fs-xl); }
.page-product .product-credit p:last-child { margin-bottom: 0; }

.product-list { margin: 0; padding: 0; list-style: none; }
.product-list li { position: relative; padding-left: var(--sp-6); margin-top: var(--sp-2); color: var(--text-muted); }
.product-list li::before {
  content: ""; position: absolute; left: 0; top: 0.7em; width: 10px; height: 2px; background: var(--app-accent);
}

/* Spec sheet (product requirements, about credits) */
.spec-sheet { margin: var(--sp-6) 0 var(--sp-4); border-top: 1px solid var(--border-strong); }
.spec-sheet__row { display: grid; gap: var(--sp-1) var(--sp-6); padding: var(--sp-4) 0; border-bottom: 1px solid var(--border); }
.spec-sheet dt { font-family: var(--font-sans); font-size: var(--fs-sm); font-weight: 600; color: var(--text-muted); padding-top: 0.15em; }
.spec-sheet dd { margin: 0; overflow-wrap: anywhere; }
@media (min-width: 640px) { .spec-sheet__row { grid-template-columns: 12rem 1fr; } }
.spec-sheet__note { font-size: var(--fs-sm); }

/* ---------- About ---------- */
.page-about .about-principles { list-style: none; margin: 0; padding: 0; }
.page-about .about-principles > li { padding-top: var(--sp-4); border-top: var(--rule-strong); }
.page-about .about-status { list-style: none; margin: var(--sp-6) 0; padding: 0; }
.page-about .about-status__row {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3) var(--sp-4);
  padding: var(--sp-4) 0; border-bottom: 1px solid var(--border);
}
.page-about .about-status__name { flex: 1 1 12rem; font-weight: 600; }
.page-about .about-status__row .app-logo { flex: none; }

/* ---------- 404 ---------- */
.page-404 .notfound__inner { display: grid; gap: var(--sp-8); align-items: center; }
@media (min-width: 760px) { .page-404 .notfound__inner { grid-template-columns: auto 1fr; gap: var(--sp-12); } }
.page-404 .notfound__tile {
  position: relative; display: grid; place-items: center;
  width: clamp(9rem, 40vw, 13rem); aspect-ratio: 1;
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  background: radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--straw) 25%, transparent), transparent 60%), var(--surface);
  transform: rotate(-4deg);
}
.page-404 .notfound__num { position: absolute; top: var(--sp-3); left: var(--sp-4); font-size: var(--fs-sm); color: var(--text-muted); }
.page-404 .notfound__sym { font: 800 clamp(4rem, 15vw, 6rem)/1 var(--font-display); color: var(--straw); }
:root[data-theme="light"] .page-404 .notfound__sym { color: var(--link); }
.page-404 .notfound__formula { position: absolute; bottom: var(--sp-3); right: var(--sp-4); font-size: var(--fs-xs); color: var(--text-faint); }
.page-404 .notfound__copy { min-width: 0; }
.page-404 .notfound__ctas { margin-top: var(--sp-6); }
.page-404 .notfound__subhead { font-size: var(--fs-xl); }
.page-404 .notfound__more { margin-top: var(--sp-8); color: var(--text-muted); }

/* ---------- Download page ---------- */
.page-download .download-note { max-width: 62ch; }
.page-download .callout code { color: var(--text); }
.page-download .callout--warn h2 { font-size: var(--fs-xl); }
.page-download .download-actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-8); }
.page-download .app-strip { margin-top: var(--sp-12); }