/* EA Autocleaning - stylesheet */

:root {
  --bg: #0f1113;
  --bg-2: #14171a;
  --panel: #1a1e22;
  --panel-2: #202529;
  --line: #2b3238;
  --line-soft: #22282d;
  --text: #dfe4e8;
  --text-strong: #ffffff;
  --muted: #939ba2;
  --accent: #f2a600;
  --accent-dim: #b87f08;
  --accent-soft: rgba(242, 166, 0, 0.10);
  --warn: #e2563c;
  --ok: #46b98b;
  --radius: 3px;
  --wrap: 1140px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  color: var(--text-strong);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 .6em;
  font-weight: 700;
}
h1 { font-size: 2.35rem; letter-spacing: -0.025em; }
h2 { font-size: 1.6rem; margin-top: 2.2em; }
h3 { font-size: 1.18rem; margin-top: 1.8em; }
h4 { font-size: 1rem; margin-top: 1.6em; }

p { margin: 0 0 1.15em; }
ul, ol { margin: 0 0 1.15em; padding-left: 1.25em; }
li { margin-bottom: .45em; }
strong { color: var(--text-strong); }

hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.wrap-narrow { max-width: 760px; margin: 0 auto; padding: 0 22px; }

.label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .8rem;
}
.label-muted { color: var(--muted); }

/* ---------- tape strip ---------- */
.tape {
  height: 5px;
  background-image: repeating-linear-gradient(
    135deg,
    var(--accent) 0 10px,
    #0f1113 10px 20px
  );
  opacity: .85;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(15, 17, 19, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 26px;
  min-height: 66px;
}
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.brand:hover { text-decoration: none; }
.mono-badge {
  width: 34px; height: 34px;
  background: var(--accent);
  color: #14100a;
  display: grid; place-items: center;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .02em;
  border-radius: 2px;
  flex: none;
}
.brand-name { color: var(--text-strong); font-weight: 700; font-size: 1.02rem; letter-spacing: -0.01em; }
.brand-sub { display: block; color: var(--muted); font-size: 11px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; }

nav.main-nav { margin-left: auto; }
nav.main-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
nav.main-nav a {
  display: block;
  padding: 7px 11px;
  color: var(--text);
  font-size: 14.5px;
  font-weight: 500;
  border-radius: 2px;
}
nav.main-nav a:hover { background: var(--panel); color: var(--text-strong); text-decoration: none; }
nav.main-nav a.is-active { color: var(--accent); }

.nav-toggle {
  display: none;
  margin-left: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 2px;
  font-size: 14px;
  cursor: pointer;
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  nav.main-nav {
    display: none;
    margin-left: 0;
    width: 100%;
    order: 3;
    border-top: 1px solid var(--line);
    padding: 10px 0 14px;
  }
  nav.main-nav.is-open { display: block; }
  nav.main-nav ul { flex-direction: column; gap: 0; }
  nav.main-nav a { padding: 10px 4px; border-bottom: 1px solid var(--line-soft); }
  .header-inner { flex-wrap: wrap; }
}

/* ---------- hero ---------- */
.hero {
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(900px 380px at 12% -10%, rgba(242, 166, 0, 0.10), transparent 60%),
    linear-gradient(180deg, var(--bg-2), var(--bg));
  padding: 62px 0 56px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr .95fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { font-size: 2.9rem; }
.hero p.lead { font-size: 1.14rem; color: var(--text); max-width: 46em; }
.hero-art { border: 1px solid var(--line); background: var(--panel); border-radius: var(--radius); padding: 18px; }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero h1 { font-size: 2.1rem; }
  .hero { padding: 42px 0 38px; }
}

.page-head {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  padding: 46px 0 38px;
}
.page-head p.lead { color: var(--muted); font-size: 1.08rem; max-width: 48em; margin-bottom: 0; }
.page-head h1 { margin-bottom: .35em; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  padding: 11px 20px;
  background: var(--accent);
  color: #14100a;
  font-weight: 700;
  font-size: 15px;
  border-radius: 2px;
  border: 1px solid var(--accent);
}
.btn:hover { background: var(--accent-dim); border-color: var(--accent-dim); text-decoration: none; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-ghost:hover { background: var(--panel); color: var(--text-strong); border-color: var(--accent); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.6rem; }

/* ---------- sections ---------- */
section.band { padding: 58px 0; border-bottom: 1px solid var(--line-soft); }
section.band:last-of-type { border-bottom: 0; }
.band-head { max-width: 46em; margin-bottom: 34px; }
.band-head h2 { margin-top: 0; }
.band-head p { color: var(--muted); margin-bottom: 0; }

/* ---------- cards ---------- */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
  display: flex;
  flex-direction: column;
}
.card::before {
  content: "";
  position: absolute;
  left: -1px; right: -1px; top: -1px;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity .15s ease;
}
.card:hover::before { opacity: 1; }
.card h3 { margin: 0 0 .5em; font-size: 1.08rem; }
.card h3 a { color: var(--text-strong); }
.card h3 a:hover { color: var(--accent); text-decoration: none; }
.card p { color: var(--muted); font-size: 15px; margin-bottom: 1em; }
.card .card-foot { margin-top: auto; font-size: 13px; color: var(--muted); }
.card-icon { color: var(--accent); margin-bottom: 14px; }
.card-meta { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: .7em; }

/* ---------- steps ---------- */
.steps { counter-reset: step; list-style: none; padding: 0; margin: 1.6rem 0 2rem; }
.steps > li {
  counter-increment: step;
  position: relative;
  padding: 0 0 22px 58px;
  margin: 0;
  border-left: 1px solid var(--line);
  margin-left: 17px;
}
.steps > li:last-child { border-left-color: transparent; padding-bottom: 0; }
.steps > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: -17px; top: -2px;
  width: 34px; height: 34px;
  background: var(--bg);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 2px;
  display: grid; place-items: center;
  font-size: 12px;
  font-weight: 700;
}
.steps h3 { margin: 0 0 .35em; font-size: 1.05rem; }
.steps p:last-child { margin-bottom: 0; }

/* ---------- callouts ---------- */
.note {
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  background: var(--panel);
  padding: 18px 20px;
  border-radius: var(--radius);
  margin: 1.8rem 0;
}
.note p:last-child { margin-bottom: 0; }
.note .label { margin-bottom: .4rem; }
.note-warn { border-left-color: var(--warn); }
.note-warn .label { color: var(--warn); }

/* ---------- shop block ---------- */
.shop-block {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(242, 166, 0, 0.06), transparent 70%),
    var(--panel);
  padding: 24px 24px 22px;
  margin: 2.4rem 0;
}
.shop-block .label { margin-bottom: .5rem; }
.shop-block h3 { margin: 0 0 .5em; font-size: 1.1rem; }
.shop-block p { color: var(--muted); font-size: 15px; }
.shop-block p:last-child { margin-bottom: 0; }
.shop-block .url { color: var(--accent); font-weight: 600; word-break: break-all; }
.link-list-inline { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 10px; }
.link-list-inline li {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg);
  padding: 8px 13px;
  font-size: 14.5px;
}
.link-list-inline li:hover { border-color: var(--accent); }
.link-list-inline a { font-weight: 600; word-break: break-word; }

.hero-art svg { display: block; width: 100%; height: auto; }
.faq h3 { font-size: 1.02rem; margin-top: 1.7em; }
.faq h3 + p { color: var(--muted); }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; margin: 1.8rem 0; border: 1px solid var(--line); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
th { background: var(--panel-2); color: var(--text-strong); font-size: 12px; letter-spacing: .09em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }

/* ---------- article ---------- */
.article-body { max-width: 760px; }
.article-body h2:first-child { margin-top: 0; }
.article-meta { color: var(--muted); font-size: 14px; margin-bottom: 1.6rem; }
.article-meta span + span::before { content: "·"; margin: 0 .55em; }

.toc {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 18px 22px;
  margin: 0 0 2.2rem;
}
.toc .label { margin-bottom: .5rem; }
.toc ol { margin: 0; padding-left: 1.1em; }
.toc li { margin-bottom: .3em; font-size: 15px; }
.toc a { color: var(--text); }
.toc a:hover { color: var(--accent); }

/* ---------- video ---------- */
.video {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #0b0d0f;
  margin: 2rem 0;
}
.video-frame { position: relative; padding-top: 56.25%; }
.video-frame iframe, .video-facade {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}
.video-facade {
  display: grid;
  place-items: center;
  cursor: pointer;
  background:
    radial-gradient(600px 200px at 50% 120%, rgba(242,166,0,.12), transparent 70%),
    repeating-linear-gradient(135deg, #14171a 0 14px, #101315 14px 28px);
  border: 0;
  padding: 0;
}
.video-facade:hover .play-btn { background: var(--accent); color: #14100a; }
.play-btn {
  width: 62px; height: 62px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  color: var(--accent);
  display: grid; place-items: center;
  transition: background .15s ease, color .15s ease;
}
.video-cap { padding: 12px 16px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.video-cap strong { display: block; color: var(--text-strong); font-weight: 600; margin-bottom: 2px; }
.video-facade-text { position: absolute; left: 16px; bottom: 14px; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }

/* ---------- glossary ---------- */
.alpha-nav { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 2rem; }
.alpha-nav a, .alpha-nav span {
  min-width: 34px; text-align: center;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 13px;
  font-weight: 600;
}
.alpha-nav span { color: #4b5359; border-color: var(--line-soft); }
.term { border-bottom: 1px solid var(--line-soft); padding: 18px 0; }
.term:last-child { border-bottom: 0; }
.term h3 { margin: 0 0 .35em; font-size: 1.05rem; }
.term p { margin: 0; color: var(--muted); font-size: 15px; }
.letter-head {
  margin: 2.6rem 0 .6rem;
  font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--accent);
  border-bottom: 1px solid var(--line); padding-bottom: .5rem;
}

/* ---------- link list ---------- */
.link-list { list-style: none; padding: 0; margin: 1.4rem 0; }
.link-list li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 16px 18px;
  margin-bottom: 12px;
}
.link-list .src { display: block; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: .35em; }
.link-list a { font-weight: 600; word-break: break-word; }
.link-list p { margin: .4em 0 0; color: var(--muted); font-size: 14.5px; }

/* ---------- breadcrumbs ---------- */
.crumbs { font-size: 13px; color: var(--muted); padding: 14px 0 0; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent); }
.crumbs span::before { content: "/"; margin: 0 .5em; color: #454d53; }

/* ---------- prev/next ---------- */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 3rem 0 0; }
.pager a {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  background: var(--panel);
  color: var(--text);
  font-size: 15px;
}
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager .dir { display: block; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: .3em; }
.pager .next { text-align: right; }
@media (max-width: 640px) { .pager { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-2);
  padding: 50px 0 26px;
  margin-top: 60px;
  font-size: 15px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { font-size: 12px; letter-spacing: .13em; text-transform: uppercase; color: var(--muted); margin: 0 0 1em; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .5em; }
.site-footer a { color: var(--text); }
.site-footer a:hover { color: var(--accent); }
.site-footer p { color: var(--muted); font-size: 14.5px; }
.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 36px;
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13.5px;
}
.footer-bottom ul { display: flex; flex-wrap: wrap; gap: 18px; }

/* ---------- misc ---------- */
.skip {
  position: absolute; left: -9999px;
}
.skip:focus {
  left: 12px; top: 12px; z-index: 100;
  background: var(--accent); color: #14100a; padding: 10px 14px; border-radius: 2px;
}
.center { text-align: center; }
.mt0 { margin-top: 0; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin: 2rem 0 0; }
.stat { background: var(--panel); padding: 18px 20px; }
.stat b { display: block; color: var(--accent); font-size: 1.5rem; line-height: 1.2; }
.stat span { font-size: 13px; color: var(--muted); }
@media (max-width: 780px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }

.error-page { padding: 90px 0; text-align: center; }
.error-page .code { font-size: 4.5rem; color: var(--accent); font-weight: 800; line-height: 1; margin-bottom: .2em; }