/*
 * Eventora — showcase site.
 *
 * One stylesheet, no build step, no framework, no external request. The site is
 * three static documents on GitHub Pages; a toolchain would be more moving parts
 * than the thing it builds.
 *
 * The palette is Eventora's own brand violet lifted onto a dark ground, so the
 * light-themed product screenshots read as artefacts sitting *inside* the page
 * rather than as the page itself.
 */

:root {
  --bg: #0a0a0f;
  --surface: #12121b;
  --surface-2: #171722;
  --surface-3: #1e1e2c;

  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);

  --text: #e9e9f2;
  --text-dim: #a8a8bd;
  --text-faint: #74748c;

  /* Eventora violet (#630ed4 / #8b3ff0) lifted for legibility on dark. */
  --violet: #b8a4f5;
  --violet-dim: rgba(184, 164, 245, 0.14);
  --violet-deep: #630ed4;
  --green: #6ee7a8;
  --green-dim: rgba(110, 231, 168, 0.13);
  --amber: #f5c26b;
  --amber-dim: rgba(245, 194, 107, 0.13);

  --mono: ui-monospace, "SF Mono", "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;

  --wide: 1120px;
  --radius: 14px;
}

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

html {
  scroll-behavior: smooth;
  /* The sticky header would otherwise cover an anchored heading. */
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* A single soft wash behind the top of the page. Fixed, so it does not travel
   with the content and turn into a gradient that scrolls. */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto 0;
  height: 620px;
  background:
    radial-gradient(60% 100% at 18% 0%, rgba(184, 164, 245, 0.14), transparent 70%),
    radial-gradient(50% 100% at 82% 0%, rgba(110, 231, 168, 0.08), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

main,
.site-header,
.site-footer {
  position: relative;
  z-index: 1;
}

img {
  max-width: 100%;
  display: block;
}

.wrap {
  width: 100%;
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------------------------------------------------------- skip link */

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--surface-3);
  border: 1px solid var(--line-strong);
  color: var(--text);
  text-decoration: none;
  transition: top 0.15s;
}

.skip:focus {
  top: 12px;
}

/* ---------------------------------------------------------------- header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 15, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

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

.brand span {
  font-size: 1.02rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  padding: 8px 12px;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}

.nav a:hover {
  color: var(--text);
  background: var(--surface-2);
}

.nav a[aria-current="page"] {
  color: var(--violet);
  background: var(--violet-dim);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 9px;
}

/* Mobile disclosure. Hidden entirely on desktop — the nav itself is visible
   there, so a second copy of the links would be a duplicate landmark. */
.nav-toggle {
  display: none;
  margin-left: auto;
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  cursor: pointer;
  padding: 9px 10px;
}

.nav-toggle i {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
}

.nav-toggle i + i {
  margin-top: 4px;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 8px 24px 18px;
  border-top: 1px solid var(--line);
  background: rgba(10, 10, 15, 0.96);
}

.nav-mobile.is-open {
  display: flex;
}

.nav-mobile a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 10px 4px;
  border-radius: 8px;
}

.nav-mobile a:hover {
  color: var(--violet);
}

/* ---------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 17px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 550;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.14s, border-color 0.14s, background 0.14s;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: rgba(184, 164, 245, 0.5);
  background: var(--surface-3);
}

.btn-primary {
  background: linear-gradient(135deg, #b8a4f5, #8f7ae0);
  border-color: transparent;
  color: #12091f;
  font-weight: 650;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #c6b6f8, #9d89e8);
  border-color: transparent;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}

.btn-sm {
  padding: 7px 13px;
  font-size: 0.86rem;
}

/* ---------------------------------------------------------------- typography */

h1,
h2,
h3,
h4 {
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.5rem);
}

h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.1rem);
}

h3 {
  font-size: 1.16rem;
}

h4 {
  font-size: 0.95rem;
}

p {
  margin: 0 0 1.1em;
  color: var(--text-dim);
}

strong {
  color: var(--text);
}

a {
  color: var(--violet);
}

section {
  padding: 76px 0;
  border-top: 1px solid var(--line);
}

section:first-of-type {
  border-top: none;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--violet);
  margin: 0 0 12px;
}

.lede {
  font-size: 1.12rem;
  max-width: 68ch;
}

.section-head {
  max-width: 72ch;
  margin-bottom: 40px;
}

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

.list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 14px;
  color: var(--text-dim);
  max-width: 74ch;
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--violet);
}

.list li:last-child {
  margin-bottom: 0;
}

/* ---------------------------------------------------------------- code */

code {
  font-family: var(--mono);
}

p code,
li code,
td code,
th code,
.lede code {
  font-size: 0.86em;
  padding: 1px 6px;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--violet);
}

pre {
  margin: 0 0 1.2em;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow-x: auto;
  line-height: 1.6;
  max-width: 100%;
}

pre code {
  display: block;
  font-size: 0.84rem;
  color: var(--text-dim);
  background: none;
  border: 0;
  padding: 0;
  white-space: pre;
}

/* ---------------------------------------------------------------- hero */

.hero {
  padding: 92px 0 72px;
  border-top: none;
}

.hero h1 {
  margin-bottom: 20px;
  background: linear-gradient(180deg, #ffffff 20%, #b9b9d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .lede {
  font-size: 1.22rem;
  max-width: 64ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

/* Compact hero for the inner pages. */
.page-hero {
  padding: 72px 0 56px;
  border-top: none;
}

.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  margin-bottom: 16px;
}

/* ---------------------------------------------------------------- stats */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 48px;
}

.stat {
  background: var(--surface);
  padding: 22px 20px;
}

.stat b {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.stat span {
  display: block;
  font-size: 0.83rem;
  color: var(--text-faint);
  margin-top: 3px;
}

/* ---------------------------------------------------------------- cards */

.grid {
  display: grid;
  gap: 18px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}

.card h3 {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
}

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

.card .file {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  display: block;
  margin-top: 14px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  word-break: break-all;
}

/* A card that is also a link into a deeper page. */
a.card {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}

a.card:hover {
  transform: translateY(-2px);
  border-color: rgba(184, 164, 245, 0.4);
  background: var(--surface-2);
}

a.card .more {
  display: block;
  margin-top: 16px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--violet);
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--violet-dim);
  font-size: 20px;
  line-height: 1;
}

/* A claim that carries its evidence. */
.proof {
  border-left: 2px solid var(--green);
  padding-left: 15px;
  margin: 16px 0 0;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.proof b {
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.85rem;
}

/* ---------------------------------------------------------------- chips */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  font-size: 0.86rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.chip b {
  color: var(--text);
  font-weight: 600;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

.badge-violet {
  background: var(--violet-dim);
  color: var(--violet);
}

.badge-green {
  background: var(--green-dim);
  color: var(--green);
}

.badge-amber {
  background: var(--amber-dim);
  color: var(--amber);
}

/* ---------------------------------------------------------------- tables */

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 28px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 520px;
}

th,
td {
  text-align: left;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: var(--surface-2);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 600;
  white-space: nowrap;
}

td {
  color: var(--text-dim);
}

td b,
td strong {
  color: var(--text);
}

tr:last-child td {
  border-bottom: none;
}

td code,
th code {
  font-family: var(--mono);
  font-size: 0.83rem;
}

.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-family: var(--mono);
}

/* ---------------------------------------------------------------- arch boxes */

/* Box diagrams built from real elements rather than ASCII art: they reflow at
   any width, re-token with the palette, and do not depend on the reader having
   a font with connecting box-drawing glyphs. */
.arch {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.arch-node {
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 13px 18px;
  text-align: center;
  min-width: 210px;
  max-width: 100%;
  width: fit-content;
  margin-inline: auto;
}

.arch-chain .arch-node,
.arch-cols .arch-node {
  width: auto;
  margin-inline: 0;
}

.arch-node b {
  display: block;
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.35;
}

.arch-node span {
  display: block;
  font-family: var(--mono);
  font-size: 0.73rem;
  color: var(--text-faint);
  line-height: 1.5;
  margin-top: 5px;
}

.arch-node .tag {
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--violet);
  margin: 0 0 6px;
}

.arch-node.accent {
  background: var(--violet-dim);
  border-color: rgba(184, 164, 245, 0.45);
}

.arch-node.store {
  background: var(--green-dim);
  border-color: rgba(110, 231, 168, 0.35);
}

/* Vertical connector. The label rides alongside the line rather than breaking
   it, so the run stays continuous. */
.arch-link {
  position: relative;
  width: 1px;
  height: 44px;
  margin-inline: auto;
  background: var(--line-strong);
  flex: none;
}

.arch-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid var(--line-strong);
}

.arch-link span {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-faint);
  white-space: nowrap;
}

.arch-group {
  width: 100%;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  padding: 20px;
}

.arch-group.solid {
  border-style: solid;
}

.arch-group.is-store {
  border-style: solid;
  border-color: rgba(110, 231, 168, 0.38);
}

.arch-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet);
  margin: 0 0 14px;
}

.arch-group.is-store .arch-label {
  color: var(--green);
}

/* Horizontal run of nodes with carets between. Wraps instead of scrolling. */
.arch-chain {
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.arch-chain .arch-node {
  flex: 1 1 175px;
  min-width: 0;
}

.arch-caret {
  flex: none;
  align-self: center;
  border-left: 7px solid var(--line-strong);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.arch-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.arch-foot {
  width: 100%;
  margin: 18px 0 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.75;
  color: var(--text-faint);
}

/* ---------------------------------------------------------------- flow steps */

.flow {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.flow-step {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 12px;
  align-items: baseline;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 11px 15px;
}

.flow-step b {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--violet);
}

.flow-step span {
  font-family: var(--mono);
  font-size: 0.79rem;
  line-height: 1.55;
  color: var(--text-dim);
}

.flow-step em {
  font-style: normal;
  color: var(--text);
}

.flow-branch {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 16px;
  width: 100%;
}

.flow-col {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
}

/* Green is the path that succeeds, amber the one that is turned away — the
   rejection is correct behaviour, not an error, so it is not red. */
.flow-col.is-ok {
  border-color: rgba(110, 231, 168, 0.35);
}

.flow-col.is-ok .arch-label {
  color: var(--green);
}

.flow-col.is-fail {
  border-color: rgba(245, 194, 107, 0.35);
}

.flow-col.is-fail .arch-label {
  color: var(--amber);
}

/* ---------------------------------------------------------------- spec list */

/* Label-over-value beats a two-column table in a ~340px grid cell: the value
   gets the full width, so nothing has to scroll sideways to be read. */
.spec-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
}

.spec-card h4 {
  margin: 0 0 4px;
  color: var(--text);
}

.spec-card .spec-list + h4 {
  margin-top: 26px;
}

.spec-list {
  margin: 0;
}

.spec-list > div {
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.spec-list > div:first-child {
  border-top: none;
}

.spec-list dt {
  margin: 0 0 3px;
  font-family: var(--mono);
  font-size: 0.71rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.spec-list dd {
  margin: 0;
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.45;
}

/* ---------------------------------------------------------------- browser frame */

.shot {
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface-2);
  box-shadow: 0 20px 50px -22px rgba(0, 0, 0, 0.9);
  margin: 0;
}

.shot-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  background: var(--surface-3);
  border-bottom: 1px solid var(--line);
}

.dots {
  display: flex;
  gap: 7px;
  flex: none;
}

.dots i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: block;
}

.dots i:nth-child(1) {
  background: #ff5f57;
}

.dots i:nth-child(2) {
  background: #febc2e;
}

.dots i:nth-child(3) {
  background: #28c840;
}

.shot-url {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 5px 12px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  /* Tall full-page captures are cropped to a readable height rather than shrunk
     until the text is unreadable. The declared width/height stay the capture
     size — they reserve space, they do not describe the rendered box. */
  max-height: 640px;
  object-fit: cover;
  object-position: top;
  cursor: zoom-in;
}

.shot.is-full img {
  max-height: none;
}

.shot.is-mobile {
  max-width: 320px;
  margin: 0 auto;
}

.shot.is-mobile img {
  max-height: none;
}

/* Compact frames in the home-page teaser row. */
.shot.is-teaser img {
  aspect-ratio: 16 / 10;
  max-height: none;
}

/* ---------------------------------------------------------------- steps */

.stage {
  margin-bottom: 26px;
}

/* The screenshot is the evidence, so it gets the wider column — at an even
   split a 1440px capture shrinks below the point where its UI text is legible
   at a glance. */
.step {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 40px;
  align-items: center;
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

/* Not .step:first-of-type — .stage is also a div, so it takes "first div of
   its type" and no .step ever matches. */
.stage + .step {
  border-top: none;
  padding-top: 8px;
}

/* Alternating sides keep a long walkthrough from reading as one column of
   images with captions bolted on. The track widths flip with the order, so the
   screenshot keeps the wide column on both sides — otherwise every other
   capture renders at half the size of its neighbours. */
.step.reverse {
  grid-template-columns: 0.85fr 1.35fr;
}

.step.reverse .step-media {
  order: 2;
}

.step.reverse .step-copy {
  order: 1;
}

.step-head {
  display: flex;
  align-items: baseline;
  gap: 13px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.step-num {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--violet);
  flex: none;
}

.step-copy h3 {
  margin: 0 0 10px;
}

.step-copy p {
  max-width: 60ch;
  margin-bottom: 0;
}

.step-copy p + p {
  margin-top: 14px;
}

/* ---------------------------------------------------------------- callout */

.note {
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 18px 22px;
  margin: 18px 0 0;
  font-size: 0.93rem;
}

.note p:last-child {
  margin-bottom: 0;
}

.note strong {
  color: var(--text);
}

.note.is-green {
  border-left-color: var(--green);
}

.note.is-violet {
  border-left-color: var(--violet);
}

/* ---------------------------------------------------------------- split panel */

/* Two-up prose + illustrative panel, used by the organizer section. */
.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 48px;
  align-items: center;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  font-size: 0.86rem;
}

.panel-head b {
  color: var(--text);
}

.panel-head span {
  color: var(--text-faint);
  font-size: 0.78rem;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}

.panel-stat {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}

.panel-stat > span {
  font-size: 0.76rem;
  color: var(--text-faint);
}

.panel-stat .num {
  text-align: left;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 2px;
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 78px;
  margin-top: 14px;
}

.bars i {
  flex: 1;
  display: block;
  background: linear-gradient(180deg, var(--violet), rgba(99, 14, 212, 0.75));
  border-radius: 4px 4px 0 0;
}

/* ---------------------------------------------------------------- footer */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 56px 0 0;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-grid h4 {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 14px;
}

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

.footer-grid li {
  margin-bottom: 9px;
}

.footer-grid a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
}

.footer-grid a:hover {
  color: var(--violet);
}

.footer-about p {
  font-size: 0.92rem;
  max-width: 42ch;
  margin: 0;
}

.footer-brand {
  margin-bottom: 14px;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-size: 0.86rem;
  color: var(--text-faint);
}

/* ---------------------------------------------------------------- lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(6, 6, 10, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  cursor: zoom-out;
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
}

/* ---------------------------------------------------------------- reveal */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------------- focus */

/* The browser default outline disappears against this ground in some engines.
   Replace it — never remove it. */
:where(a, button, .btn, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .step,
  .step.reverse {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .step.reverse .step-media,
  .step.reverse .step-copy {
    order: initial;
  }

  .step-copy h3 {
    margin-top: 0;
  }
}

@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-about {
    grid-column: 1 / -1;
  }

  .nav,
  .header-actions {
    display: none;
  }

  .nav-toggle {
    display: block;
  }
}

@media (max-width: 720px) {
  .arch-chain {
    flex-direction: column;
  }

  /* flex-basis follows the main axis, so the 175px that set node width in a
     row would set node height in a column. */
  .arch-chain .arch-node {
    flex: 0 0 auto;
  }

  .arch-chain .arch-caret {
    transform: rotate(90deg);
  }

  .arch {
    padding: 22px 16px;
  }

  .arch-group {
    padding: 16px 14px;
  }

  section {
    padding: 56px 0;
  }

  .hero {
    padding: 64px 0 48px;
  }

  .page-hero {
    padding: 52px 0 40px;
  }

  .shot img {
    max-height: 340px;
  }

  .panel-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .brand span {
    display: none;
  }
}

/* ---------------------------------------------------------------- a11y prefs */

@media (prefers-contrast: more) {
  :root {
    --text-dim: #d4d4e4;
    --text-faint: #a6a6bd;
    --line: rgba(255, 255, 255, 0.18);
    --line-strong: rgba(255, 255, 255, 0.3);
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn:hover,
  a.card:hover {
    transform: none;
  }

  .skip {
    transition: none;
  }
}

/* ---------------------------------------------------------------- print */

@media print {
  body {
    background: #fff;
    color: #000;
  }

  body::before,
  .site-header,
  .nav-mobile,
  .site-footer,
  .hero-actions,
  .lightbox,
  .skip {
    display: none !important;
  }

  .card,
  .table-scroll,
  .shot,
  .arch,
  .arch-group,
  .flow-col,
  .panel,
  pre {
    border-color: #bbb;
    break-inside: avoid;
    background: #fff;
    box-shadow: none;
  }

  .hero h1 {
    -webkit-text-fill-color: #000;
    color: #000;
  }

  p,
  td,
  .lede,
  .list li,
  pre code,
  .arch-node span,
  .flow-step span,
  .spec-list dd {
    color: #222;
  }

  section {
    padding: 24px 0;
    border-top: 1px solid #ddd;
  }

  main a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #555;
  }

  /* Without this, any section not yet scrolled into view prints blank. */
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}