/* Cloudray LightBurn Install — static site styles.
   Plain CSS, no build step. Colors are tokens only; never hard-code a hex below :root. */

:root {
  color-scheme: light dark;

  --bg:            #f6f7f9;
  --bg-elev:       #ffffff;
  --bg-sunken:     #eceef2;
  --line:          #d9dde4;
  --line-strong:   #c2c8d2;

  --ink:           #16191f;
  --ink-soft:      #4c5566;
  --ink-faint:     #717b8c;

  --accent:        #b6341f;
  --accent-ink:    #ffffff;
  --accent-soft:   #fdeeea;
  --accent-line:   #f0c4ba;

  --warn:          #8a5a00;
  --warn-soft:     #fdf3dd;
  --warn-line:     #ecd79b;
  --warn-glow:     rgba(190, 132, 10, .45);

  --ok:            #1f6b46;

  --focus:         #2563c9;

  --radius:        10px;
  --radius-lg:     16px;
  --shadow:        0 1px 2px rgba(16, 20, 28, .06), 0 8px 24px -12px rgba(16, 20, 28, .18);

  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Consolas", "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --measure: 68ch;
  --page:    1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:          #0f1116;
    --bg-elev:     #171a21;
    --bg-sunken:   #121419;
    --line:        #272c36;
    --line-strong: #363d4a;

    --ink:         #e9ecf2;
    --ink-soft:    #a7b0bf;
    --ink-faint:   #7d8695;

    --accent:      #ff6a4d;
    --accent-ink:  #1a0d09;
    --accent-soft: #2a1611;
    --accent-line: #51251b;

    --warn:        #e8bc5c;
    --warn-soft:   #2a2213;
    --warn-line:   #4a3c1c;
    --warn-glow:   rgba(232, 188, 92, .34);

    --ok:          #5fcf96;

    --focus:       #7aa6ff;

    --shadow:      0 1px 2px rgba(0, 0, 0, .5), 0 10px 30px -14px rgba(0, 0, 0, .7);
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; margin: 0; font-weight: 650; }
h1 { font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.85rem); }
h2 { font-size: clamp(1.25rem, 1.05rem + 0.9vw, 1.6rem); }
h3 { font-size: 1.05rem; font-weight: 600; }
p  { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

code, kbd, .mono { font-family: var(--mono); font-size: .875em; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: 8px; top: -3rem; z-index: 20;
  background: var(--bg-elev); color: var(--ink);
  padding: .5rem .85rem; border: 1px solid var(--line-strong); border-radius: var(--radius);
  transition: top .15s ease;
}
.skip:focus { top: 8px; }

/* ---------- layout ---------- */

.wrap {
  width: 100%;
  max-width: var(--page);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.site-head {
  border-bottom: 1px solid var(--line);
  background: var(--bg-elev);
  position: sticky; top: 0; z-index: 10;
}
.site-head .wrap {
  display: flex; align-items: center; gap: 1rem;
  min-height: 60px; flex-wrap: wrap;
}
.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  font-weight: 650; color: var(--ink); text-decoration: none;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--accent); }
.brand .mark {
  width: 24px; height: 24px; flex: none;
  display: grid; place-items: center;
  border-radius: 6px;
  background: var(--accent); color: var(--accent-ink);
  font: 700 13px/1 var(--mono);
}
.site-head nav { margin-left: auto; display: flex; gap: 1.25rem; font-size: .925rem; }
.site-head nav a { color: var(--ink-soft); text-decoration: none; }
.site-head nav a:hover { color: var(--accent); text-decoration: underline; }

.site-foot {
  border-top: 1px solid var(--line);
  margin-top: 4rem; padding-block: 2rem;
  color: var(--ink-faint); font-size: .875rem;
}
.site-foot p { max-width: var(--measure); }

section { margin-block: clamp(2.5rem, 6vw, 4rem); }
section > h2 + p.lede { margin-top: .5rem; }

.lede { color: var(--ink-soft); max-width: var(--measure); font-size: 1.05rem; }

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

.hero { padding-block: clamp(2.5rem, 7vw, 4.5rem) 0; }
.hero .eyebrow {
  font: 600 .75rem/1 var(--mono);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 1rem;
}
.hero h1 { max-width: 22ch; }
.hero .lede { margin-top: 1.25rem; font-size: clamp(1.05rem, 1rem + .4vw, 1.2rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.75rem; }

.feature-list {
  list-style: none; padding: 0; margin: 2.5rem 0 0;
  display: grid; gap: 1.25rem 2rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}
.feature-list li { padding-left: 1.5rem; position: relative; color: var(--ink-soft); }
.feature-list li::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: .5rem; height: .5rem; border-radius: 2px; background: var(--accent);
}
.feature-list b { color: var(--ink); font-weight: 600; display: block; }

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

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .7rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--bg-elev); color: var(--ink);
  font: inherit; font-weight: 600; font-size: .95rem;
  text-decoration: none; cursor: pointer;
  transition: background .12s ease, border-color .12s ease, transform .12s ease;
}
.btn:hover { border-color: var(--ink-faint); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent); border-color: var(--accent); color: var(--accent-ink);
}
.btn-primary:hover { filter: brightness(1.08); border-color: var(--accent); }
.btn-sm { padding: .4rem .7rem; font-size: .85rem; }
.btn[aria-disabled="true"], .btn:disabled {
  opacity: .55; cursor: not-allowed; pointer-events: none;
}

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

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.1rem, 3vw, 1.6rem);
}

.grid-cards {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 290px), 1fr));
  margin-top: 1.75rem;
  list-style: none; padding: 0;
}

.laser-card {
  display: flex; flex-direction: column; gap: .85rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-decoration: none; color: inherit;
  box-shadow: var(--shadow);
  transition: border-color .14s ease, transform .14s ease;
}
.laser-card:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.laser-card h3 { font-size: 1.1rem; font-weight: 650; }
.laser-card .key {
  font: 600 .7rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-faint);
}
.laser-card .stats { margin-top: auto; color: var(--ink-soft); font-size: .9rem; }
.laser-card .go { color: var(--accent); font-weight: 600; font-size: .9rem; }

.badge {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .3rem .65rem; border-radius: 999px;
  font-size: .75rem; font-weight: 650; line-height: 1.5;
  border: 1px solid transparent; white-space: nowrap;
}
.badge-ok    { background: var(--bg-sunken); border-color: var(--line); color: var(--ok); }
.badge-warn  { background: var(--warn-soft); border-color: var(--warn-line); color: var(--warn); }
.badge-row { display: flex; flex-wrap: wrap; gap: .4rem; }

.note {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  margin-block: 1.5rem;
}
.note-warn { background: var(--warn-soft); border-color: var(--warn-line); }
.note h3 { margin-bottom: .35rem; }
.note p { max-width: var(--measure); color: var(--ink-soft); }
.note-warn p { color: var(--ink); }

/* ---------- downloads ---------- */

.dl-grid {
  display: grid; gap: 1rem; margin-top: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}
.dl-card { display: flex; flex-direction: column; gap: .75rem; }
.dl-card header { display: flex; align-items: baseline; gap: .6rem; flex-wrap: wrap; }
.dl-card h3 { font-size: 1.15rem; font-weight: 650; }
.dl-card p { color: var(--ink-soft); font-size: .95rem; }
.dl-card .filename {
  font-family: var(--mono); font-size: .8rem; color: var(--ink-faint);
  word-break: break-all;
}
.dl-card .actions { margin-top: auto; padding-top: .35rem; }

/* ---------- laser page ---------- */

.crumbs { font-size: .9rem; color: var(--ink-faint); padding-top: 1.5rem; }
.crumbs a { color: var(--ink-soft); }

.laser-head { padding-block: 1rem 0; }
.laser-head h1 { margin-top: .35rem; }
.meta-row {
  display: flex; flex-wrap: wrap; gap: .4rem 1.25rem;
  margin-top: 1rem; color: var(--ink-soft); font-size: .925rem;
}
.meta-row > span { display: inline-flex; gap: .4rem; }
.meta-row b { color: var(--ink); font-weight: 600; }

.toolbar {
  display: flex; flex-wrap: wrap; gap: .75rem; align-items: center;
  margin-block: 2rem 1.5rem;
  position: sticky; top: 60px; z-index: 5;
  background: var(--bg);
  padding-block: .75rem;
}
.search {
  flex: 1 1 260px; min-width: 0;
  display: flex; align-items: center; gap: .55rem;
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: .55rem .8rem;
}
.search:focus-within { border-color: var(--focus); box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 22%, transparent); }
.search input {
  flex: 1; min-width: 0; border: 0; background: none; color: inherit;
  font: inherit; font-size: .95rem; padding: 0;
}
.search input:focus { outline: none; }
.search svg { flex: none; color: var(--ink-faint); }
.result-count { color: var(--ink-faint); font-size: .9rem; font-variant-numeric: tabular-nums; }

.group { margin-bottom: 2.25rem; }
.group > h2 {
  display: flex; align-items: baseline; gap: .75rem; flex-wrap: wrap;
  padding-bottom: .6rem; margin-bottom: .25rem;
  border-bottom: 1px solid var(--line);
}
.group > h2 .count {
  font: 500 .85rem/1.4 var(--sans); color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.files { list-style: none; margin: 0; padding: 0; }
.file {
  border-bottom: 1px solid var(--line);
  padding: .85rem .25rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .35rem 1rem;
  align-items: start;
}
.file:last-child { border-bottom: 0; }
.file .name {
  font-weight: 550; min-width: 0;
  display: flex; align-items: baseline; gap: .5rem; flex-wrap: wrap;
}
.file .name .path { word-break: break-word; }
.file .dir { color: var(--ink-faint); font-size: .8rem; font-family: var(--mono); }
.file .size {
  color: var(--ink-soft); font-size: .875rem; font-variant-numeric: tabular-nums;
  white-space: nowrap; text-align: right;
}
.file .row2 {
  grid-column: 1 / -1;
  display: flex; flex-wrap: wrap; gap: .5rem; align-items: center;
}
.file .ext {
  font: 600 .7rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-faint); border: 1px solid var(--line); border-radius: 4px;
  padding: .35rem .5rem;
}

.hash {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--bg-sunken); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .5rem .5rem .5rem .75rem;
  max-width: 100%;
}
.hash code {
  color: var(--ink-faint); font-size: .75rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.copy {
  border: 0; background: none; color: var(--ink-soft);
  font: inherit; font-size: .75rem; font-weight: 650;
  padding: .2rem .45rem; border-radius: 5px; cursor: pointer; white-space: nowrap;
}
.copy:hover { background: var(--line); color: var(--ink); }
.copy[data-done="1"] { color: var(--ok); }

.preview { grid-column: 1 / -1; margin-top: .5rem; }
.preview video, .preview img {
  display: block; width: 100%; max-width: 640px;
  height: auto; border-radius: var(--radius);
  background: var(--bg-sunken); border: 1px solid var(--line);
}

/* ---------- states ---------- */

.state {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 5vw, 2.5rem);
  text-align: center; color: var(--ink-soft);
  margin-block: 2rem;
}
.state h2 { color: var(--ink); margin-bottom: .5rem; }
.state p { max-width: 52ch; margin-inline: auto; }
.state code { word-break: break-all; }
[hidden] { display: none !important; }

.skeleton {
  display: grid; gap: 1rem; margin-top: 1.75rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 290px), 1fr));
}
.skeleton > div {
  height: 148px; border-radius: var(--radius-lg);
  border: 1px solid var(--line); background: var(--bg-elev);
  position: relative; overflow: hidden;
}
.skeleton > div::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--bg-sunken), transparent);
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer { from { transform: translateX(-100%); } to { transform: translateX(100%); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .skeleton > div::after { display: none; }
}

@media (max-width: 560px) {
  .site-head { position: static; }
  .toolbar { position: static; }
  .file { grid-template-columns: 1fr; }
  .file .size { text-align: left; }
}

/* ---------- bundles ---------- */
/* Groups that only ship as a zip lead with this card; the file list under it is an
   inventory, folded away so a 1500-file vendor tree does not drown the page. */
.bundle {
  display: flex; flex-wrap: wrap; gap: 1rem 1.5rem;
  align-items: center; justify-content: space-between;
  border: 1px solid var(--line); background: var(--bg-elev);
  border-radius: var(--radius-lg); padding: 1.1rem 1.25rem;
  margin-block: 1rem 1.25rem;
}
.bundle-text { min-width: 15rem; flex: 1 1 20rem; }
.bundle-title { font: 650 1rem/1.3 var(--mono); margin: 0; }
.bundle-meta { color: var(--ink-soft); font-size: .9rem; margin: .2rem 0 0; }
.bundle-note { color: var(--ink-faint); font-size: .85rem; margin: .45rem 0 0; max-width: 42ch; }
.bundle-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; }

.contents { margin-top: .25rem; }
.contents > summary {
  cursor: pointer; color: var(--ink-soft); font-size: .9rem;
  padding: .55rem .25rem; border-radius: var(--radius);
}
.contents > summary:hover { color: var(--ink); }
.contents > summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.contents[open] > summary { margin-bottom: .35rem; }

/* An inventory row has no actions, so it should not advertise itself as interactive. */
.file-listed { opacity: .85; }
.file-listed .size { color: var(--ink-faint); }

@media (max-width: 560px) {
  .bundle { padding: 1rem; }
  .bundle-actions { width: 100%; }
  .bundle-actions .btn { flex: 1 1 auto; justify-content: center; }
}

/* ---------- attention box ---------- */
/* Carl asked for this one to glow and read as a warning: it carries the requirements
   people get stuck on (Python present, run as administrator). */
.note-attention {
  border-color: var(--warn-line);
  background: var(--warn-soft);
  box-shadow: 0 0 0 1px var(--warn-line), 0 0 28px -6px var(--warn-glow);
  position: relative;
}
.note-attention h3 {
  display: flex; align-items: center; gap: .55rem;
  color: var(--warn);
}
.note-attention h3::before {
  content: "!";
  flex: 0 0 auto;
  width: 1.45rem; height: 1.45rem; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--warn); color: var(--bg);
  font: 800 .9rem/1 var(--sans, inherit);
}
.note-attention p { color: var(--ink); }
.note-attention .mono { font-family: var(--mono); font-size: .95em; }

@media (prefers-reduced-motion: no-preference) {
  .note-attention { transition: box-shadow .3s ease; }
  .note-attention:hover { box-shadow: 0 0 0 1px var(--warn-line), 0 0 34px -4px var(--warn-glow); }
}

/* ---------- USB folder structure ---------- */
.structure {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--bg-elev); padding: 1rem 1.25rem; margin-top: 2.5rem;
}
.structure > summary {
  cursor: pointer; font: 650 1.05rem/1.3 inherit;
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .6rem;
  padding: .25rem 0;
}
.structure > summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.structure > .result-count { margin: .5rem 0 1rem; max-width: var(--measure); }

ul.tree { list-style: none; margin: 0; padding-left: 1.1rem; }
.structure > ul.tree { padding-left: 0; }
ul.tree ul.tree { border-left: 1px solid var(--line); margin-left: .35rem; }

.dir > summary {
  cursor: pointer; display: flex; flex-wrap: wrap; align-items: baseline;
  gap: .5rem; padding: .3rem .25rem; border-radius: var(--radius);
}
.dir > summary:hover { background: var(--bg-sunken); }
.dir > summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.dir-name { font: 600 .9rem/1.4 var(--mono); color: var(--ink); }

.tree-file {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem;
  padding: .28rem .25rem;
}
.tree-name, .tree-link { font: .85rem/1.4 var(--mono); word-break: break-all; }
.tree-name { color: var(--ink-soft); }
.tree-link { color: var(--accent); }
.tree-size { color: var(--ink-faint); font-size: .8rem; margin-left: auto; white-space: nowrap; }

@media (max-width: 560px) {
  .structure { padding: 1rem; }
  ul.tree { padding-left: .7rem; }
  .tree-size { margin-left: 0; }
}