/* Médiathèque site and user guide. Dark first, like the app: the palette is the app's
   own (mediatheque/ui/theme.py), with a light counterpart for readers who want one. */

:root {
  --ground: #0f0f1a;
  --panel: #14142a;
  --raise: #1a1a2e;
  --card: #16213e;
  --rule: #2a2a4a;
  --ink: #e6e7ef;
  --ink2: #a3a9bd;
  --ink3: #6f7592;
  --accent: #4da3e8;
  --accent-strong: #3b8ed0;
  --on-accent: #ffffff;
  --keep: #2ecc71;
  --remove: #ef5a73;
  --gold: #e6b422;
  --smart: #f0883e;
  --bit-on: #c9cde0;
  --bit-off: #23233f;
  --frame: #2a2a4a;
  --shadow: 0 40px 90px -40px rgba(0, 0, 0, 0.85);
  --display: "Bricolage Grotesque", "Noto Sans", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", "Noto Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "Noto Sans Mono", ui-monospace, monospace;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --ground: #f1f2f7;
    --panel: #e7e9f2;
    --raise: #ffffff;
    --card: #ffffff;
    --rule: #d4d7e5;
    --ink: #141628;
    --ink2: #4d546e;
    --ink3: #767c96;
    --accent: #1f6fb2;
    --accent-strong: #1f6fb2;
    --keep: #13874a;
    --remove: #c42d49;
    --gold: #946f08;
    --smart: #b85a16;
    --bit-on: #2c3150;
    --bit-off: #d9dcea;
    --frame: #c4c8da;
    --shadow: 0 34px 70px -38px rgba(20, 22, 60, 0.45);
    color-scheme: light;
  }
}

:root[data-theme="light"] {
  --ground: #f1f2f7;
  --panel: #e7e9f2;
  --raise: #ffffff;
  --card: #ffffff;
  --rule: #d4d7e5;
  --ink: #141628;
  --ink2: #4d546e;
  --ink3: #767c96;
  --accent: #1f6fb2;
  --accent-strong: #1f6fb2;
  --keep: #13874a;
  --remove: #c42d49;
  --gold: #946f08;
  --smart: #b85a16;
  --bit-on: #2c3150;
  --bit-off: #d9dcea;
  --frame: #c4c8da;
  --shadow: 0 34px 70px -38px rgba(20, 22, 60, 0.45);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 24px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 17px/1.62 var(--body);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--display); text-wrap: balance; margin: 0; color: var(--ink); }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); font-weight: 760; line-height: 1.08; letter-spacing: -0.022em; }
h3 { font-size: 1.3rem; font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
p { margin: 0; }
code, kbd, pre, .mono { font-family: var(--mono); }
code { font-size: 0.86em; background: var(--raise); border: 1px solid var(--rule); border-radius: 5px; padding: 0.05em 0.35em; }
kbd {
  font-size: 0.8rem; font-weight: 500; white-space: nowrap;
  background: var(--raise); color: var(--ink);
  border: 1px solid var(--rule); border-bottom-width: 2px; border-radius: 5px;
  padding: 0.1em 0.45em; line-height: 1.5;
}
.eyebrow {
  font: 500 0.78rem/1.3 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink3);
}
.wrap { max-width: 1240px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 40px); }

/* ---------- top bar ---------- */
.top { border-bottom: 1px solid var(--rule); }
.top .wrap { display: flex; align-items: center; gap: 24px; padding-block: 14px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; margin-right: auto; }
.brand svg { width: 30px; height: 30px; flex: none; }
.brand span { font: 760 1.2rem/1 var(--display); letter-spacing: -0.01em; }
.top nav { display: flex; gap: 22px; flex-wrap: wrap; }
.top nav a { color: var(--ink2); text-decoration: none; font-size: 0.95rem; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }

/* ---------- screenshots ---------- */
.shot { border: 1px solid var(--frame); border-radius: 10px; overflow: hidden; background: #0f0f1a; box-shadow: var(--shadow); }
figure { margin: 0; }
figcaption { margin-top: 12px; font-size: 0.88rem; line-height: 1.5; color: var(--ink3); max-width: 70ch; }

/* ---------- buttons ---------- */
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 18px;
  border-radius: 8px; border: 1px solid var(--rule); background: var(--raise); color: var(--ink);
  font: 700 0.98rem/1 var(--body); text-decoration: none; cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--on-accent); }
.btn.primary:hover { filter: brightness(1.08); }

/* ---------- landing ---------- */
.hero { overflow-x: clip; padding-block: clamp(40px, 7vw, 88px) clamp(48px, 7vw, 96px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 4vw, 56px); align-items: center; }
.hero h1 { font-size: clamp(2.6rem, 5.6vw, 4.5rem); font-weight: 800; line-height: 1.0; letter-spacing: -0.035em; margin-block: 14px 22px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lede { font-size: 1.14rem; color: var(--ink2); max-width: 36rem; margin-bottom: 30px; }
.hero .meta { margin-top: 20px; font: 0.8rem/1.4 var(--mono); color: var(--ink3); }
.hero figure { width: min(1060px, 142%); }
.hero figcaption { max-width: 52ch; }

.band { background: var(--panel); border-block: 1px solid var(--rule); padding-block: clamp(48px, 7vw, 88px); }
.fp { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.fp .copy { display: grid; gap: 18px; max-width: 34rem; }
.fp .copy p { color: var(--ink2); }
.fp .copy h2 { margin-top: -4px; }

.prints { display: grid; gap: 22px; }
.print { display: grid; gap: 10px; }
.print .who { display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: baseline; font: 0.86rem/1.4 var(--mono); }
.print .who b { color: var(--ink); font-weight: 500; }
.print .who span { color: var(--ink3); }
.frames { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(8px, 1.6vw, 18px); }
.frame { display: grid; gap: 6px; }
.frame small { font: 0.72rem/1 var(--mono); color: var(--ink3); letter-spacing: 0.06em; }
.bits { display: grid; grid-template-columns: repeat(8, 1fr); gap: 2px; aspect-ratio: 1; max-width: 100%; }
.bits i { background: var(--bit-off); border-radius: 2px; }
.bits i.on { background: var(--bit-on); }
.bits i.diff { background: var(--remove); }
.readout { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; padding-top: 18px; border-top: 1px solid var(--rule); }
.readout .count { font: 700 2rem/1 var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.readout .count small { font-size: 0.95rem; color: var(--ink3); font-weight: 400; }
.verdict { font: 500 0.82rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; padding: 8px 10px; border-radius: 6px; border: 1px solid currentColor; }
.verdict.same { color: var(--keep); }
.verdict.apart { color: var(--ink2); }
.readout .why { flex: 1 1 16rem; font-size: 0.92rem; color: var(--ink2); }
.readout .btn { margin-left: auto; }

.feature { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(28px, 5vw, 64px); align-items: center; padding-block: clamp(44px, 6vw, 80px); }
.feature + .feature { border-top: 1px solid var(--rule); }
.feature.flip .copy { order: 2; }
.feature .copy { display: grid; gap: 16px; }
.feature .copy p { color: var(--ink2); }
.spec { display: grid; gap: 8px; margin: 6px 0 0; padding-top: 16px; border-top: 1px solid var(--rule); }
.spec div { display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); gap: 12px; font-size: 0.92rem; }
.spec dt { font: 500 0.74rem/1.9 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink3); }
.spec dd { margin: 0; color: var(--ink); }

.rules { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.rules li { display: grid; gap: 4px; }
.rules b { font-family: var(--display); font-weight: 700; font-size: 1.08rem; color: var(--ink); }
.rules span { color: var(--ink2); }

.figures { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; margin-top: 40px; }
.figures div { border-top: 2px solid var(--accent-strong); padding-top: 14px; display: grid; gap: 6px; }
.figures strong { font: 800 clamp(2.2rem, 4.4vw, 3.3rem)/1 var(--display); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.figures span { font-size: 0.92rem; color: var(--ink2); }
.section-head { display: grid; gap: 14px; max-width: 44rem; }
.section-head p { color: var(--ink2); }

.availability { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 5vw, 64px); padding-block: clamp(48px, 7vw, 88px); align-items: center; }
.platforms { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.platforms li { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 20px; border-bottom: 1px solid var(--rule); }
.platforms b { font: 760 clamp(1.5rem, 3vw, 2.1rem)/1 var(--display); letter-spacing: -0.02em; }
.status { font: 500 0.78rem/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink3); padding: 8px 10px; border: 1px solid currentColor; border-radius: 6px; }
.status.first { color: var(--accent); }
.signup { display: grid; gap: 10px; margin-top: 10px; padding-top: 22px; border-top: 1px solid var(--rule); }
.signup label { font: 700 1rem/1.3 var(--body); color: var(--ink); }
.signup-row { display: flex; flex-wrap: wrap; gap: 10px; }
.signup input[type="email"] {
  flex: 1 1 15rem; min-width: 0; min-height: 44px; padding: 0 14px; border-radius: 8px;
  border: 1px solid var(--rule); background: var(--raise); color: var(--ink); font: 1rem/1 var(--body);
}
.signup input[type="email"]::placeholder { color: var(--ink3); }
.signup input[type="email"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.signup .btn:disabled { opacity: 0.6; cursor: progress; }
.signup .fine { font-size: 0.86rem; line-height: 1.5; color: var(--ink3); }
.signup-status { min-height: 1.5em; font-weight: 700; font-size: 0.95rem; }
.signup-status.ok { color: var(--keep); }
.signup-status.err { color: var(--remove); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
pre {
  margin: 0; overflow-x: auto; background: var(--raise); border: 1px solid var(--rule); border-radius: 10px;
  padding: 18px 20px; font-size: 0.88rem; line-height: 1.75; color: var(--ink);
}
pre .c { color: var(--ink3); }
.foot { border-top: 1px solid var(--rule); padding-block: 28px; color: var(--ink3); font-size: 0.88rem; }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; }
.foot .wrap > :first-child { margin-right: auto; }

/* ---------- guide ---------- */
.guide { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); padding-block: 40px 96px; }
.toc { position: sticky; top: 20px; align-self: start; max-height: calc(100vh - 40px); overflow-y: auto; padding-right: 8px; }
.toc ol { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 1px; }
.toc a { display: block; padding: 5px 10px; border-radius: 6px; color: var(--ink2); text-decoration: none; font-size: 0.93rem; line-height: 1.35; }
.toc a:hover { color: var(--ink); background: var(--raise); }
.toc a.here { color: var(--ink); background: var(--raise); box-shadow: inset 2px 0 0 var(--accent); }
.doc { min-width: 0; }
.doc > header { display: grid; gap: 14px; padding-bottom: 36px; border-bottom: 1px solid var(--rule); max-width: 46rem; }
.doc > header h1 { font-size: clamp(2.3rem, 4.8vw, 3.4rem); font-weight: 800; line-height: 1.02; letter-spacing: -0.03em; }
.doc > header p { color: var(--ink2); font-size: 1.1rem; }
.doc section { padding-top: 56px; display: grid; gap: 18px; }
.doc section > h2 { font-size: clamp(1.7rem, 3vw, 2.1rem); }
.doc section > h2 + p { font-size: 1.08rem; }
.doc section > * { max-width: 44rem; }
.doc section > figure, .doc section > .annot, .doc section > .table-wrap, .doc section > .pair { max-width: 58rem; }
.doc h3 { margin-top: 18px; }
.doc ul, .doc ol.steps { margin: 0; padding-left: 1.3rem; display: grid; gap: 8px; }
.doc li::marker { color: var(--ink3); }
.doc section > figure { margin-block: 8px; }
.pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; align-items: start; }
.narrow { max-width: 22rem !important; }
.note { background: var(--raise); border: 1px solid var(--rule); border-radius: 8px; padding: 16px 18px; display: grid; gap: 6px; }
.note .eyebrow { color: var(--accent); }
.note p { color: var(--ink2); font-size: 0.97rem; }
.term { font-weight: 700; color: var(--ink); }
.swatch { display: inline-block; width: 0.8em; height: 0.8em; border-radius: 3px; vertical-align: -0.05em; margin-right: 0.3em; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th { font: 500 0.72rem/1.4 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink3); text-align: left; padding: 0 14px 10px 0; border-bottom: 1px solid var(--rule); }
td { padding: 10px 14px 10px 0; border-bottom: 1px solid var(--rule); vertical-align: top; color: var(--ink2); }
td:first-child { color: var(--ink); white-space: nowrap; }
td code { white-space: nowrap; }

.annot { position: relative; }
.annot .pin {
  position: absolute; transform: translate(-50%, -50%);
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent-strong); color: #fff; font: 600 0.82rem/1 var(--mono);
  box-shadow: 0 0 0 3px rgba(15, 15, 26, 0.7), 0 6px 16px rgba(0, 0, 0, 0.4);
}
.legend { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 28px; max-width: 58rem !important; }
.legend li { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 12px; align-items: start; }
.legend li > span:first-child {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent-strong); color: #fff; font: 600 0.82rem/1 var(--mono);
}
.legend b { color: var(--ink); }
.legend p { color: var(--ink2); font-size: 0.95rem; }

@media (max-width: 900px) {
  .hero .wrap, .fp, .feature, .availability { grid-template-columns: minmax(0, 1fr); }
  .feature.flip .copy { order: 0; }
  .hero figure { width: 100%; }
  .figures { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .guide { grid-template-columns: minmax(0, 1fr); }
  .toc { position: static; max-height: none; border-bottom: 1px solid var(--rule); padding-bottom: 16px; }
  .toc ol { display: flex; flex-wrap: wrap; gap: 4px; }
  .toc a { padding: 4px 8px; background: var(--raise); }
  .legend, .pair { grid-template-columns: minmax(0, 1fr); }
  .annot .pin { width: 22px; height: 22px; font-size: 0.72rem; }
}
@media (max-width: 480px) {
  body { font-size: 16px; }
  .spec div { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .readout .btn { margin-left: 0; }
}
@media (prefers-reduced-motion: no-preference) {
  .bits i { transition: background-color 0.35s ease; }
  .btn { transition: border-color 0.15s ease, filter 0.15s ease; }
}