/*
 * Site layout and components. Colours and fonts come from theme.css; this
 * file only refers to its custom properties, so the light and dark schemes
 * are defined in one place.
 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ns-bg);
  color: var(--ns-text);
  font-family: var(--ns-font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  /* Long commands and table cells must never widen the page past a
     390 px phone; they scroll inside their own boxes instead. */
  overflow-wrap: anywhere;
}

img,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--ns-accent);
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--ns-accent-strong);
}

:focus-visible {
  outline: 3px solid var(--ns-accent);
  outline-offset: 2px;
  border-radius: 3px;
}

code,
kbd,
pre {
  font-family: var(--ns-font-mono);
  font-size: 0.92em;
}

:not(pre) > code {
  background: var(--ns-surface-2);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

pre {
  background: var(--ns-code-bg);
  color: var(--ns-code-text);
  padding: 1rem 1.1rem;
  border-radius: var(--ns-radius);
  overflow-x: auto;
  line-height: 1.5;
  overflow-wrap: normal;
}

@media (max-width: 26rem) {
  /* Commands on a phone: a little smaller and tighter, so a 35-character
     line fits a 320 px screen without scrolling. */
  pre {
    font-size: 0.8em;
    padding: 0.85rem 0.9rem;
  }
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 5vw + 0.5rem, 3.4rem);
  margin: 0 0 1rem;
}

h2 {
  font-size: clamp(1.5rem, 2.5vw + 0.6rem, 2.1rem);
  margin: 0 0 1rem;
}

h3 {
  font-size: 1.2rem;
  margin: 0 0 0.5rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: var(--ns-accent);
  color: var(--ns-accent-text);
  padding: 0.5rem 1rem;
  border-radius: var(--ns-radius-small);
  z-index: 10;
}

.skip-link:focus {
  left: 0.5rem;
}

.wrap {
  max-width: var(--ns-maxwidth);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---- Top bar and navigation ------------------------------------------ */

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--ns-bg) 88%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ns-border);
}

.topbar::after {
  /* A hairline of the icon's sweep under the bar. */
  content: "";
  display: block;
  height: 2px;
  background: var(--ns-gradient);
  opacity: 0.8;
}

.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--ns-topbar-height);
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ns-text);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
}

.brand img {
  width: 30px;
  height: 30px;
}

.brand:hover {
  color: var(--ns-text);
}

.nav-toggle {
  display: none;
  font: inherit;
  font-size: 0.95rem;
  color: var(--ns-text);
  background: var(--ns-surface);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius-small);
  padding: 0.35rem 0.8rem;
  cursor: pointer;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--ns-text-muted);
  text-decoration: none;
  font-weight: 500;
  padding: 0.35rem 0;
  display: inline-block;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ns-text);
}

.site-nav a[aria-current="page"] {
  box-shadow: inset 0 -2px 0 var(--ns-magenta);
}

/* With JavaScript, small screens collapse the links behind a button.
   Without it (the class is never added) the links simply wrap, so the
   navigation still works. */
@media (max-width: 40rem) {
  .js .nav-toggle {
    display: inline-block;
  }

  .js .site-nav {
    display: none;
    width: 100%;
    padding-bottom: 0.75rem;
  }

  .js .site-nav.open {
    display: block;
  }

  .js .site-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .js .site-nav a {
    padding: 0.55rem 0;
    width: 100%;
  }
}

/* ---- Sections ----------------------------------------------------------- */

main {
  display: block;
}

.section {
  padding: 4rem 0;
}

.section + .section {
  border-top: 1px solid var(--ns-border);
}

.section-alt {
  background: var(--ns-surface);
}

.lede {
  font-size: 1.2rem;
  color: var(--ns-text-muted);
  max-width: 44rem;
}

.eyebrow {
  font-family: var(--ns-font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ns-teal-text);
  margin: 0 0 0.6rem;
}

.prose {
  max-width: 46rem;
}

.muted {
  color: var(--ns-text-muted);
}

.small {
  font-size: 0.9rem;
}

/* ---- Hero -------------------------------------------------------------- */

.hero {
  padding: 3.5rem 0 3rem;
}

.hero h1 .grad {
  background: var(--ns-text-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin: 1.5rem 0 0;
}

.hero figure {
  margin: 2.5rem 0 0;
}

/* The hero video's Pause/Play button (added by site.js) sits in the
   video's top-right corner, clear of the caption burned into its
   bottom-left. Fixed light-on-dark colours, not theme tokens: it is drawn
   over the video's dark backdrop in both themes. */
.hero-media {
  position: relative;
}

.hero-motion {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  font: inherit;
  font-size: 0.8rem;
  color: #e8e9f5;
  background: rgba(10, 11, 20, 0.6);
  border: 1px solid rgba(232, 233, 245, 0.35);
  border-radius: var(--ns-radius-small);
  padding: 0.25rem 0.7rem;
  cursor: pointer;
}

.hero-motion:hover {
  background: rgba(10, 11, 20, 0.85);
}

figure {
  margin: 0;
}

figure img,
figure video {
  border-radius: var(--ns-radius);
  border: 1px solid var(--ns-border);
  width: 100%;
}

figcaption {
  font-size: 0.9rem;
  color: var(--ns-text-muted);
  margin-top: 0.6rem;
  max-width: 52rem;
}

/* ---- Buttons ----------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  padding: 0.65rem 1.1rem;
  border-radius: var(--ns-radius-small);
  border: 1px solid transparent;
  cursor: pointer;
}

.button-primary {
  background: var(--ns-accent);
  color: var(--ns-accent-text);
}

.button-primary:hover {
  background: var(--ns-accent-strong);
  color: var(--ns-accent-text);
}

.button-secondary {
  background: transparent;
  color: var(--ns-text);
  border-color: var(--ns-border);
}

.button-secondary:hover {
  color: var(--ns-text);
  border-color: var(--ns-text-muted);
}

/* The agent call to action: /try's "Connect your AI agent" button (the
   NeoSCAD repo's web/src/app.css), a gradient ring and gradient text in the
   title's colours. */
.button-agent {
  position: relative;
  overflow: hidden;
  color: var(--ns-text);
  border: 1.5px solid transparent;
  background:
    linear-gradient(var(--ns-bg), var(--ns-bg)) padding-box,
    var(--ns-gradient) border-box;
}

.button-agent:hover {
  background:
    linear-gradient(var(--ns-surface-2, var(--ns-bg)), var(--ns-surface-2, var(--ns-bg))) padding-box,
    var(--ns-gradient) border-box;
}

.button-agent .grad,
.button-agent .agent-spark,
.agent-pitch .grad {
  background: var(--ns-text-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.button-agent::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.5) 50%, transparent 70%);
  transform: translateX(-100%);
  animation: agent-shimmer 2.6s ease-in-out 1s 3;
  pointer-events: none;
}

@keyframes agent-shimmer {
  to {
    transform: translateX(100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .button-agent::after {
    animation: none;
  }
}

.agent-pitch {
  margin-top: 0.9rem;
  max-width: 38rem;
}

.agent-pitch .grad {
  font-weight: 650;
}

/* ---- Supporters ------------------------------------------------------- */

.supporter-logos {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  align-items: center;
}

.supporter-logos img {
  display: block;
  height: 4.5rem;
  width: auto;
  max-width: 100%;
}

.supporter-logos a {
  display: block;
  border-radius: var(--ns-radius-small);
}

.supporter-logos a:focus-visible {
  outline: 2px solid var(--ns-accent);
  outline-offset: 4px;
}

.support-us {
  margin: 1.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
}

/* ---- Install line and "coming soon" state ------------------------------ */

.install {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
  background: var(--ns-code-bg);
  color: var(--ns-code-text);
  border-radius: var(--ns-radius);
  padding: 0.8rem 1rem;
  max-width: 44rem;
}

.install code {
  /* Override the inline-code chip: its light background would hide the
     light text of this dark box in the light scheme. */
  background: none;
  padding: 0;
  color: inherit;
  font-family: var(--ns-font-mono);
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}

/* A command that doesn't work yet is struck through and dimmed, so no one
   copies it into a terminal and concludes the project is broken. */
.install.unavailable code,
.cmd-unavailable {
  opacity: 0.6;
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.badge {
  display: inline-block;
  font-family: var(--ns-font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  white-space: nowrap;
  text-decoration: none;
  vertical-align: middle;
}

.badge-soon {
  background: var(--ns-warn-bg);
  color: var(--ns-warn-text);
  border: 1px solid color-mix(in srgb, var(--ns-warn-text) 35%, transparent);
}

.badge-planned {
  background: var(--ns-surface-2);
  color: var(--ns-text-muted);
  border: 1px solid var(--ns-border);
}

.badge-exists {
  background: color-mix(in srgb, var(--ns-cyan) 18%, transparent);
  color: var(--ns-teal-text);
  border: 1px solid color-mix(in srgb, var(--ns-cyan) 45%, transparent);
}

/* Placeholder links: they are real <a> elements (so the layout is final)
   but point nowhere, are removed from the tab order and say so. */
a[aria-disabled="true"] {
  pointer-events: none;
  cursor: not-allowed;
  color: var(--ns-text-muted);
  text-decoration: line-through;
}

.notice {
  border-left: 4px solid var(--ns-magenta);
  background: var(--ns-surface-2);
  padding: 0.9rem 1.1rem;
  border-radius: 0 var(--ns-radius-small) var(--ns-radius-small) 0;
  max-width: 50rem;
}

/* ---- Numbers strip ------------------------------------------------------ */

.numbers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.numbers li {
  background: var(--ns-surface);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  padding: 1.25rem;
}

.section-alt .numbers li {
  background: var(--ns-bg);
}

.numbers .num {
  display: block;
  font-size: 2.2rem;
  font-weight: 750;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}

.numbers li:nth-child(1) .num { color: var(--ns-teal-text); }
.numbers li:nth-child(2) .num { color: var(--ns-accent); }
.numbers li:nth-child(3) .num { color: var(--ns-magenta-text); }
.numbers li:nth-child(4) .num { color: var(--ns-text); }

.numbers .what {
  display: block;
  color: var(--ns-text-muted);
  font-size: 0.95rem;
}

/* ---- Cards (pillars, download entries) ---------------------------------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.25rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: 2rem;
  align-items: start;
}

/* A grid item's minimum width is its content's by default, so one long
   unbreakable line (a <pre> command) would widen the column past the
   screen. Let items shrink; <pre> then scrolls inside its own box. */
.grid-2 > *,
.grid-3 > * {
  min-width: 0;
}

@media (max-width: 26rem) {
  /* 20rem columns plus padding would overflow a 390 px screen. */
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--ns-surface);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  padding: 1.4rem;
}

.section-alt .card {
  background: var(--ns-bg);
}

.card h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.pillar-mark {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  flex: none;
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

/* ---- Placeholder media -------------------------------------------------- */

.placeholder {
  display: grid;
  place-items: center;
  text-align: center;
  aspect-ratio: 1 / 1;
  border: 2px dashed var(--ns-border);
  border-radius: var(--ns-radius);
  background: var(--ns-surface-2);
  color: var(--ns-text-muted);
  padding: 1.5rem;
  font-family: var(--ns-font-mono);
  font-size: 0.9rem;
}

/* ---- Tables -------------------------------------------------------------- */

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius);
  background: var(--ns-surface);
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.92rem;
}

th,
td {
  text-align: left;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--ns-border);
  vertical-align: top;
  overflow-wrap: normal;
}

thead th {
  background: var(--ns-surface-2);
  font-weight: 600;
  white-space: nowrap;
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: 0;
}

td.n,
th.n {
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

td.model {
  min-width: 14rem;
}

td.model code {
  white-space: nowrap;
}

.table-scroll table caption {
  caption-side: bottom;
  text-align: left;
  padding: 0.6rem 0.8rem;
  color: var(--ns-text-muted);
  font-size: 0.85rem;
}

/* ---- Download page -------------------------------------------------------- */

.platform {
  scroll-margin-top: calc(var(--ns-topbar-height) + 1rem);
}

.platform h2 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.dl-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.dl-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.4rem 1rem;
  background: var(--ns-surface);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius-small);
  padding: 0.8rem 1rem;
}

.dl-list .dl-main {
  flex: 1 1 18rem;
  min-width: 0;
}

.dl-list .dl-note {
  display: block;
  color: var(--ns-text-muted);
  font-size: 0.9rem;
}

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

/* ---- FAQ ----------------------------------------------------------------- */

.faq details {
  border-bottom: 1px solid var(--ns-border);
  padding: 0.9rem 0;
  max-width: 50rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
}

.faq details[open] summary {
  margin-bottom: 0.5rem;
}

/* ---- Footer --------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--ns-border);
  padding: 2.5rem 0 3rem;
  color: var(--ns-text-muted);
  font-size: 0.9rem;
}

.site-footer .cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1.5rem;
}

.site-footer h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  color: var(--ns-text);
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li {
  margin: 0.25rem 0;
}

.site-footer a {
  color: var(--ns-text-muted);
}

.site-footer a:hover {
  color: var(--ns-text);
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
}

/* ---- Community results (community.html) --------------------------------- */

/* Text for screen readers only: a column header or button label that the
   layout makes obvious visually. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.eyebrow a {
  color: inherit;
}

.community-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
}

.version-picker {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.version-picker label {
  font-weight: 600;
}

.version-picker select {
  font: inherit;
  color: var(--ns-text);
  background: var(--ns-surface);
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius-small);
  padding: 0.4rem 0.6rem;
  max-width: 100%;
}

.platform-cards {
  margin-bottom: 2rem;
}

.speedups {
  margin: 0 0 0.8rem;
}

.speedups dt {
  color: var(--ns-text-muted);
  font-size: 0.9rem;
}

.speedups dd {
  margin: 0 0 0.6rem;
}

.speedups .big {
  font-size: 1.6rem;
  font-variant-numeric: tabular-nums;
}

.tag {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0 0.35rem;
  border: 1px solid var(--ns-border);
  border-radius: var(--ns-radius-small);
  font-size: 0.75rem;
  color: var(--ns-text-muted);
}

.button-small {
  padding: 0.25rem 0.65rem;
  font-size: 0.85rem;
}

tr.details > td {
  background: var(--ns-surface-2);
  padding: 0.8rem;
}

/* The per-model table inside a run's row: its own scroll box, so a long
   model id scrolls there rather than widening the outer table. */
.table-scroll.nested {
  max-width: 40rem;
}

.table-scroll.nested table caption {
  caption-side: top;
}

/* A .visually-hidden label is absolutely positioned; without a positioned
   ancestor inside the scroll box, one in a column scrolled off to the
   right widens the whole page on a phone. */
#runs,
#baselines {
  position: relative;
}

/* These set display, which would otherwise override the hidden attribute
   the page's script uses (an empty "Release" picker in the empty state). */
.version-picker[hidden],
.platform-cards[hidden] {
  display: none;
}