/*
 * solador.app. Plain CSS, no build step, no webfont: the brand has no typeface
 * on purpose (brand/README.md), so type is the system stack the app itself uses.
 * Colours are the app's own dashboard tokens (app/ui/dashboard.css) plus the
 * mark's terracotta, cobalt and sand. No inline styles anywhere: the page runs
 * under `style-src 'self'`, the same policy as the app.
 */

:root {
  color-scheme: dark;

  --bg: #070b13;
  --panel: #101725;
  --raised: #182235;
  --line: #2a374c;
  --text: #ede8de;
  --muted: #9caec5;
  --green: #68d3a0;
  --amber: #f2ba63;
  --red: #ff9384;
  --blue: #97b9fc;

  --terracotta: #e0614f;
  --cobalt: #1e4fa0;
  --sand: #f5e6cd;

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

  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 32px);
  --radius: 12px;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--text);
}

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 4px;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.15;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.3rem, 5.6vw, 4rem);
}

h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
}

h3 {
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
  text-wrap: pretty;
}

code,
pre,
kbd {
  font-family: var(--mono);
  font-size: 0.86em;
}

code {
  padding: 0.1em 0.35em;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--panel);
  overflow-wrap: anywhere;
}

pre {
  margin: 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  overflow-x: auto;
  line-height: 1.55;
}

pre code {
  padding: 0;
  border: 0;
  background: none;
  font-size: 0.82rem;
  overflow-wrap: normal;
}

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

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: var(--gutter);
  top: 12px;
  z-index: 10;
  padding: 8px 12px;
  background: var(--sand);
  color: var(--bg);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 650;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand img {
  width: 28px;
  height: 28px;
}

.site-nav {
  display: flex;
  gap: clamp(14px, 3vw, 28px);
  margin-left: auto;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--raised);
  color: var(--text);
  font: 600 0.98rem/1 var(--sans);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.15s, background-color 0.15s, transform 0.15s;
}

.btn:hover {
  border-color: var(--muted);
  color: var(--text);
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  border-color: var(--sand);
  background: var(--sand);
  color: #0b1020;
}

.btn-primary:hover {
  border-color: #fff;
  background: #fff;
  color: #0b1020;
}

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

.download {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  justify-items: start;
}

.download-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.download-meta {
  color: var(--muted);
  font: 0.82rem/1.5 var(--mono);
}

.download-note {
  max-width: 34rem;
  color: var(--muted);
  font-size: 0.92rem;
}

/* `download.js` reveals this only where neither installer fits the visitor's
   machine (Linux, phones): both buttons still render, so nothing is hidden
   from someone sending themselves the link. */
.download-note[hidden] {
  display: none;
}

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

.hero {
  padding: clamp(48px, 9vw, 104px) 0 0;
}

.eyebrow {
  margin-bottom: 18px;
  color: var(--amber);
  font: 500 0.82rem/1.4 var(--mono);
  letter-spacing: 0.04em;
}

.hero h1 {
  max-width: 15ch;
}

.hero .lede {
  max-width: 40rem;
  margin: 22px 0 30px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
}

.hero .lede strong {
  color: var(--text);
  font-weight: 600;
}

.screen {
  margin: clamp(44px, 7vw, 72px) 0 0;
}

.screen img,
.shot {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #000;
  box-shadow:
    0 0 0 1px rgb(0 0 0 / 0.6),
    0 30px 80px -20px rgb(30 79 160 / 0.45),
    0 18px 40px -24px rgb(0 0 0 / 0.9);
}

.screen figcaption,
.caption {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

/* -------------------------------------------------------------- sections */

.section {
  padding: clamp(72px, 11vw, 128px) 0 0;
}

.section-head {
  max-width: 44rem;
  margin-bottom: clamp(32px, 5vw, 48px);
}

.section-head p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 1.08rem;
}

.kicker {
  display: block;
  margin-bottom: 12px;
  color: var(--muted);
  font: 500 0.78rem/1.4 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* The name and the mark, side by side. */
.story {
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
}

.story-mark {
  width: 100%;
  max-width: 220px;
}

.story p + p {
  margin-top: 16px;
}

.story p {
  color: var(--muted);
  font-size: 1.08rem;
}

.story em {
  color: var(--text);
}

/* ------------------------------------------------------- the 3×3 panel grid */

.tiles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tile {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

/* A window onto each panel's top-left corner, where its names and first
   readings sit. `cover` keeps every crop at a legible scale whatever its
   aspect: a wide panel is cut on the right, a tall one at the bottom. */
.tile-shot {
  height: 210px;
  padding: 14px 14px 0;
  border-bottom: 1px solid var(--line);
  background: #000;
  overflow: hidden;
}

.tile-shot img {
  width: 100%;
  height: 100%;
  border-radius: 8px 8px 0 0;
  object-fit: cover;
  object-position: left top;
}

.tile-body {
  padding: 16px 18px 20px;
}

.tile-body h3 {
  font: 600 0.98rem/1.3 var(--mono);
  letter-spacing: 0;
}

.tile-body p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.55;
}

/* The one tile out of true — the mark's top-right tile, made literal. It is
   also the one failing repo in every screenshot on this page. */
.tile-odd {
  position: relative;
  z-index: 1;
  border-color: var(--terracotta);
  box-shadow: 0 22px 50px -24px rgb(224 97 79 / 0.55);
  transform: rotate(2.2deg) scale(1.025);
}

.tile-odd h3::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 10px;
  border-radius: 50%;
  background: var(--terracotta);
  vertical-align: 1px;
}

@media (prefers-reduced-motion: no-preference) {
  .tile-odd {
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  }

  .tile-odd:hover {
    transform: rotate(0deg) scale(1);
  }
}

/* ----------------------------------------------------------- feature grid */

.features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.feature {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.feature h3 {
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature h3::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
}

.feature p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.97rem;
}

.aside {
  max-width: 44rem;
  margin-top: 28px;
  color: var(--muted);
}

.aside em {
  color: var(--text);
}

/* ------------------------------------------------ the unknown-is-not-zero key */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.legend {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
  list-style: none;
}

.legend li {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 16px 20px;
  background: var(--panel);
}

.legend .glyph {
  font: 600 1.35rem/1 var(--mono);
  text-align: center;
}

.legend .glyph-zero {
  color: var(--muted);
  opacity: 0.65;
}

.legend .glyph-approx {
  color: var(--amber);
}

.legend .glyph-empty {
  color: var(--red);
  font-size: 0.82rem;
}

.legend span:last-child {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ------------------------------------------------------------ privacy list */

.points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.points li {
  padding: 22px 24px;
  border-top: 2px solid var(--cobalt);
  background: var(--panel);
  border-radius: 0 0 var(--radius) var(--radius);
}

.points strong {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.points p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ------------------------------------------------------------------ CTA */

.cta {
  margin-top: clamp(72px, 11vw, 128px);
  padding: clamp(40px, 6vw, 64px);
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    radial-gradient(120% 140% at 100% 0%, rgb(30 79 160 / 0.35), transparent 60%),
    var(--panel);
}

.cta h2 {
  max-width: 20ch;
}

.cta p {
  max-width: 38rem;
  margin: 14px 0 26px;
  color: var(--muted);
}

/* --------------------------------------------------------- inner pages */

.page-head {
  padding: clamp(48px, 8vw, 88px) 0 clamp(28px, 4vw, 40px);
}

.page-head p {
  max-width: 42rem;
  margin-top: 16px;
  color: var(--muted);
  font-size: 1.1rem;
}

.platforms {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.platform {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.platform h2 {
  font-size: 1.35rem;
}

.platform .req {
  color: var(--amber);
  font: 500 0.8rem/1.4 var(--mono);
}

.platform ul {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  margin: 0;
  padding: 0 0 0 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.platform .btn {
  align-self: flex-start;
  margin-top: auto;
}

.prose {
  max-width: 46rem;
}

.prose > * + * {
  margin-top: 16px;
}

.prose h2 {
  margin-top: 56px;
  font-size: 1.6rem;
}

.prose h3 {
  margin-top: 28px;
}

.prose p,
.prose li {
  color: var(--muted);
}

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

.prose ul,
.prose ol {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding-left: 22px;
}

.steps {
  counter-reset: step;
  display: grid;
  /* minmax(0, …): an implicit track sizes to its widest child, and a long
     <pre> line would otherwise widen the whole page on a phone. */
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps > li {
  counter-increment: step;
  position: relative;
  padding: 26px 28px 28px 84px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.steps > li::before {
  content: counter(step);
  position: absolute;
  top: 24px;
  left: 26px;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--raised);
  color: var(--sand);
  font: 600 1rem/1 var(--mono);
}

.steps > li > * + * {
  margin-top: 14px;
}

.steps p,
.steps li li {
  color: var(--muted);
}

.steps ul,
.steps ol {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  margin-bottom: 0;
  padding-left: 20px;
}

.steps .optional {
  margin-left: 8px;
  color: var(--muted);
  font: 500 0.75rem/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: 3px;
}

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

.note {
  padding: 14px 18px;
  border-left: 3px solid var(--amber);
  border-radius: 0 8px 8px 0;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.94rem;
}

/* ---------------------------------------------------------------- 404 */

.lost {
  display: grid;
  justify-items: start;
  gap: 18px;
  padding: clamp(64px, 12vw, 140px) 0;
}

.lost img {
  width: 96px;
  transform: rotate(-8deg);
}

.lost p {
  color: var(--muted);
}

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

.site-footer {
  margin-top: clamp(72px, 11vw, 128px);
  padding: 40px 0 56px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
}

.footer-brand img {
  width: 20px;
  height: 20px;
}

.site-footer p {
  max-width: 52rem;
}

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

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

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

@media (max-width: 960px) {
  .tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .points,
  .platforms {
    grid-template-columns: minmax(0, 1fr);
  }

  .split {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .header-inner {
    gap: 12px;
  }

  .site-nav {
    font-size: 0.9rem;
  }

  .story {
    grid-template-columns: minmax(0, 1fr);
  }

  .story-mark {
    max-width: 120px;
  }

  .tiles,
  .features {
    grid-template-columns: minmax(0, 1fr);
  }

  .tile-odd {
    transform: rotate(1.2deg);
  }

  .download-buttons,
  .download-buttons .btn {
    width: 100%;
  }

  .steps > li {
    padding: 72px 20px 22px;
  }

  .steps > li::before {
    top: 20px;
    left: 20px;
  }

  .legend li {
    grid-template-columns: 44px minmax(0, 1fr);
    padding: 14px 16px;
  }
}