/* ── splitser.org ──────────────────────────────────────────────────────────
   Palette lifted straight from the app's renderer/style.css so the site and the
   product read as one thing. Bootstrap 5 supplies the grid and reset; everything
   with a look of its own is here.
   ───────────────────────────────────────────────────────────────────────── */

:root {
  --bg: #0e1418;
  --chrome: #12181d;
  --surface: #141b21;
  --line: #232c33;
  --line-2: #2c3740;
  --text: #e7e3d6;
  --muted: #8b968c;
  --accent: #5fe08a;
  --accent-dim: #3aa863;
  --field: #0b1013;
  --warn: #e0857f;

  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius: 12px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

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

body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); }

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

code {
  font-family: var(--mono);
  font-size: .88em;
  color: var(--text);
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: .08em .38em;
}

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

.skip {
  position: absolute; top: 8px; left: 8px; z-index: 200;
  background: var(--accent); color: #05130a; padding: 8px 14px; border-radius: 8px;
}

/* ── Top nav ───────────────────────────────────────────────────────────── */
.topnav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(14, 20, 24, .86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text); font-weight: 650; letter-spacing: -.01em; font-size: 17px;
}
.brand:hover { color: var(--text); text-decoration: none; }
/* Shared brand mark with the Split Screen extension -- the icon already carries its own
   rounded corners and transparency, so it needs no radius or background of its own. */
.brand-mark { flex: 0 0 auto; display: block; width: 26px; height: 26px; }
.navlink { color: var(--muted); font-size: 14.5px; }
.navlink:hover { color: var(--text); text-decoration: none; }

/* ── Buttons ───────────────────────────────────────────────────────────── */
.btn { border-radius: 9px; font-weight: 550; font-size: 15px; padding: .6rem 1.15rem; border: 1px solid transparent; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; box-shadow: none; }
.btn-accent { background: var(--accent); color: #05130a; border-color: var(--accent); }
.btn-accent:hover { background: #74e89b; border-color: #74e89b; color: #05130a; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { background: var(--surface); border-color: var(--accent); color: var(--text); }
.btn-sm { font-size: 14px; padding: .42rem .85rem; }

/* ── Hero ──────────────────────────────────────────────────────────────── */
.hero { padding: 84px 0 20px; text-align: center; }
.hero-short { padding: 76px 0 56px; }

.eyebrow {
  color: var(--accent); font-family: var(--mono); font-size: 12.5px;
  letter-spacing: .11em; text-transform: uppercase; margin-bottom: 18px;
}
.display-title {
  font-size: clamp(2.35rem, 6vw, 4rem);
  line-height: 1.06; font-weight: 700; letter-spacing: -.032em; margin: 0 0 22px;
}
.lede {
  font-size: clamp(1.03rem, 1.9vw, 1.2rem);
  color: var(--muted); max-width: 660px; margin: 0 auto 30px;
}
.lede strong { color: var(--text); font-weight: 600; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-note { color: var(--muted); font-size: 13.5px; margin: 18px 0 0; }

/* ── The app-chrome illustration ───────────────────────────────────────── */
.mock { margin: 60px auto 0; max-width: 980px; }
.mock-frame {
  background: var(--chrome);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .6), 0 0 0 1px rgba(95, 224, 138, .06);
  text-align: left;
}
.mock-titlebar {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px; background: var(--chrome); border-bottom: 1px solid var(--line);
}
.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dot-r { background: #e05f5f; } .dot-y { background: #e0c15f; } .dot-g { background: var(--accent); }
.mock-title { margin-left: 8px; color: var(--muted); font-size: 12px; }

.mock-grid { display: flex; height: 340px; }
.mock-pane { display: flex; flex-direction: column; flex: 1 1 0; min-width: 90px; }

.mock-bar {
  display: flex; align-items: center; gap: 5px;
  padding: 7px 9px; background: var(--chrome); border-bottom: 1px solid var(--line);
}
.mock-nav {
  flex: 0 0 auto; width: 22px; height: 22px; border-radius: 6px;
  background: transparent; border: 1px solid transparent; color: var(--muted);
  font-size: 13px; line-height: 1; padding: 0; cursor: default;
}
.mock-key { color: var(--accent); }
.mock-fav { flex: 0 0 auto; width: 13px; height: 13px; border-radius: 3px; background: var(--line-2); margin: 0 2px; }
.mock-fav-2 { background: var(--accent-dim); }
.mock-addr {
  flex: 1 1 auto; min-width: 0; height: 25px; line-height: 24px;
  background: var(--field); border: 1px solid var(--line); border-radius: 7px;
  padding: 0 10px; font-family: var(--mono); font-size: 11.5px; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.mock-gutter {
  flex: 0 0 6px; background: var(--line); cursor: col-resize; position: relative;
}
.mock-gutter:hover, .mock-gutter:active, .mock-gutter:focus-visible { background: var(--accent); outline: none; }
.mock-gutter::after { content: ""; position: absolute; inset: 0 -5px; }

.mock-page { flex: 1 1 auto; background: #f4f2ec; padding: 18px 20px; overflow: hidden; }
.sk { background: #d8d4ca; border-radius: 4px; height: 9px; margin-bottom: 9px; }
.sk-title { height: 15px; width: 45%; background: #b9b4a8; margin-bottom: 16px; }
.sk-line { width: 100%; }
.sk-90 { width: 90%; } .sk-80 { width: 80%; } .sk-70 { width: 70%; }
.sk-60 { width: 60%; } .sk-50 { width: 50%; } .sk-40 { width: 40%; }
.sk-block {
  background: #e6e3db; border: 1px solid #d8d4ca; border-radius: 7px;
  padding: 12px; margin: 14px 0;
}
.sk-code { background: #c9c5ba; height: 7px; }
.sk-block .sk-code:last-child { margin-bottom: 0; }
.sk-chart {
  display: flex; align-items: flex-end; gap: 7px;
  height: 116px; margin: 16px 0 18px;
}
.sk-chart span { flex: 1 1 0; background: #c9c5ba; border-radius: 3px 3px 0 0; }
.sk-chart span:nth-child(2n) { background: #b9b4a8; }

.mock-status {
  display: flex; align-items: center; justify-content: space-between;
  height: 26px; padding: 0 12px;
  background: var(--chrome); border-top: 1px solid var(--line);
  font-size: 11px; color: var(--muted);
}
.mock-hover { font-family: var(--mono); }
.mock-brand::before { content: "● "; color: var(--accent); }

.mock-cap {
  color: var(--muted); font-size: 13px; text-align: center;
  margin-top: 14px; max-width: 620px; margin-inline: auto;
}

/* ── Bands / section furniture ─────────────────────────────────────────── */
.band { padding: 84px 0; border-top: 1px solid var(--line); }
.hero + .band { border-top: 0; }
.band-alt { background: #0c1216; }

.section-title {
  font-size: clamp(1.6rem, 3.1vw, 2.25rem);
  font-weight: 680; letter-spacing: -.025em; text-align: center;
  margin: 0 auto 14px; max-width: 780px;
}
.section-lede {
  color: var(--muted); text-align: center; max-width: 700px;
  margin: 0 auto 48px; font-size: 1.03rem;
}
.section-title.text-start, .section-lede.text-start { text-align: left !important; }

/* ── Why-not-the-extension rows ────────────────────────────────────────── */
.vs-list { display: flex; flex-direction: column; gap: 18px; }
.vs-row {
  display: flex; gap: 20px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 28px;
}
.vs-num {
  flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--line-2); color: var(--muted);
  font-family: var(--mono); font-size: 13px;
  display: flex; align-items: center; justify-content: center;
}
.vs-body { flex: 1 1 auto; min-width: 0; }
.vs-kicker {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.12rem; font-weight: 620; margin: 2px 0 18px; letter-spacing: -.015em;
}
.vs-icon { font-size: 1.05rem; }
.vs-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.vs-label {
  font-family: var(--mono); font-size: 11px; letter-spacing: .09em;
  text-transform: uppercase; color: var(--warn); margin-bottom: 7px;
}
.vs-label-good { color: var(--accent); }
.vs-cols p { margin: 0; color: var(--muted); font-size: .96rem; }
.vs-ours p { color: var(--text); }
.vs-limit { border-left: 2px solid rgba(224, 133, 127, .35); padding-left: 16px; }
.vs-ours { border-left: 2px solid rgba(95, 224, 138, .4); padding-left: 16px; }

/* ── Feature grid ──────────────────────────────────────────────────────── */
.feature-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
}
.feature {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
  transition: border-color .16s ease, transform .16s ease;
}
.feature:hover { border-color: var(--line-2); transform: translateY(-2px); }
@media (prefers-reduced-motion: reduce) { .feature:hover { transform: none; } }
.feature-icon {
  width: 34px; height: 34px; border-radius: 9px;
  background: rgba(95, 224, 138, .1); border: 1px solid rgba(95, 224, 138, .22);
  color: var(--accent); font-size: 16px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 15px;
}
.feature h3 { font-size: 1.04rem; font-weight: 620; margin: 0 0 9px; letter-spacing: -.012em; }
.feature p { color: var(--muted); font-size: .93rem; margin: 0; }

/* ── Shortcuts ─────────────────────────────────────────────────────────── */
.keylist { list-style: none; padding: 0; margin: 0; display: grid; gap: 2px; }
.keylist li {
  display: flex; align-items: center; gap: 16px;
  padding: 9px 14px; border-radius: 9px;
}
.keylist li:nth-child(odd) { background: var(--surface); }
.keys { flex: 0 0 132px; display: flex; align-items: center; gap: 4px; }
kbd {
  display: inline-block; min-width: 26px; text-align: center;
  background: var(--field); border: 1px solid var(--line-2);
  border-bottom-width: 2px; border-radius: 6px;
  color: var(--text); font-family: var(--mono); font-size: 11.5px;
  padding: 3px 7px; line-height: 1.3;
}
.kplus { color: var(--muted); font-size: 11px; margin: 0 1px; }
.keylabel { color: var(--muted); font-size: .95rem; }

/* ── Vault ─────────────────────────────────────────────────────────────── */
.crypto-chip {
  display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: var(--field); border: 1px solid var(--line-2);
  border-radius: 10px; padding: 11px 15px; margin-top: 24px;
}
.crypto-label { color: var(--muted); font-size: 13px; }
.crypto-arrow { color: var(--accent); }
.crypto-val { font-family: var(--mono); font-size: 12.5px; color: var(--accent); }

.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.checklist li {
  position: relative; padding-left: 30px;
  color: var(--muted); font-size: .97rem;
}
.checklist li::before {
  content: "✓"; position: absolute; left: 0; top: -1px;
  color: var(--accent); font-size: 14px;
}
.checklist strong { color: var(--text); }
.checklist em { color: var(--text); font-style: italic; }

.sec-grid {
  display: grid; gap: 16px; margin-top: 52px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.sec-card {
  background: var(--field); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px;
}
.sec-card h3 { font-size: .98rem; font-weight: 620; margin: 0 0 9px; }
.sec-card p { color: var(--muted); font-size: .91rem; margin: 0; }

/* ── Runtime table ─────────────────────────────────────────────────────── */
.runtime {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  max-width: 880px; margin: 0 auto;
}
.runtime-row { display: flex; gap: 20px; padding: 16px 22px; border-bottom: 1px solid var(--line); }
.runtime-row:last-child { border-bottom: 0; }
.runtime-row:nth-child(odd) { background: var(--surface); }
.runtime-k {
  flex: 0 0 130px; color: var(--accent);
  font-family: var(--mono); font-size: 12px;
  letter-spacing: .07em; text-transform: uppercase; padding-top: 3px;
}
.runtime-v { flex: 1 1 auto; color: var(--muted); font-size: .95rem; min-width: 0; word-break: break-word; }

/* ── Download: steps, callout, platforms, roadmap ──────────────────────── */
.steps { display: flex; flex-direction: column; gap: 16px; max-width: 760px; margin: 0 auto; }
.step {
  display: flex; gap: 20px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px 26px;
}
.step-n {
  flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%;
  background: rgba(95, 224, 138, .12); border: 1px solid rgba(95, 224, 138, .3);
  color: var(--accent); font-family: var(--mono); font-size: 13px;
  display: flex; align-items: center; justify-content: center;
}
.step-b { flex: 1 1 auto; min-width: 0; }
.step-b h3 { font-size: 1.02rem; font-weight: 620; margin: 3px 0 13px; }

.code {
  background: var(--field); border: 1px solid var(--line);
  border-radius: 9px; padding: 14px 16px; margin: 0 0 10px;
  overflow-x: auto;
}
.code code {
  background: none; border: 0; padding: 0;
  font-family: var(--mono); font-size: 13px; color: var(--accent); line-height: 1.75;
}

.callout {
  max-width: 760px; margin: 26px auto 0;
  background: rgba(224, 193, 95, .05);
  border: 1px solid rgba(224, 193, 95, .22);
  border-left: 3px solid #e0c15f;
  border-radius: 10px; padding: 20px 24px;
}
.callout-h { font-weight: 620; font-size: .97rem; margin-bottom: 9px; }
.callout p { color: var(--muted); font-size: .93rem; }
.callout strong { color: var(--text); }

.plat-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.plat {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
}
.plat-verified { border-color: rgba(95, 224, 138, .3); }
.plat-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.plat-top h3 { font-size: 1.12rem; font-weight: 650; margin: 0; }
.pill {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em;
  text-transform: uppercase; padding: 3px 9px; border-radius: 20px; white-space: nowrap;
}
.pill-verified { background: rgba(95, 224, 138, .13); color: var(--accent); border: 1px solid rgba(95, 224, 138, .3); }
.pill-untested { background: rgba(139, 150, 140, .1); color: var(--muted); border: 1px solid var(--line-2); }
.plat-status { color: var(--text); font-size: .95rem; margin: 0 0 6px; }
.plat-detail { color: var(--muted); font-size: .9rem; margin: 0 0 16px; }
.plat-min { border-top: 1px solid var(--line); padding-top: 13px; }
.plat-min-k {
  display: block; font-family: var(--mono); font-size: 10.5px;
  letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px;
}
.plat-min-v { color: var(--muted); font-size: .88rem; }

.road-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.road {
  display: flex; gap: 16px;
  background: var(--field); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px;
}
.road-x {
  flex: 0 0 auto; width: 24px; height: 24px; border-radius: 6px;
  border: 1px solid var(--line-2); color: var(--muted);
  display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.road h3 { font-size: .99rem; font-weight: 620; margin: 1px 0 8px; }
.road p { color: var(--muted); font-size: .91rem; margin: 0; }

/* ── Closer ────────────────────────────────────────────────────────────── */
.closer {
  text-align: center; max-width: 620px; margin: 72px auto 0;
  padding-top: 56px; border-top: 1px solid var(--line);
}
.closer h2 { font-size: clamp(1.4rem, 2.6vw, 1.85rem); font-weight: 680; letter-spacing: -.022em; margin-bottom: 14px; }
.closer p { color: var(--muted); margin-bottom: 26px; }

/* ── Footer ────────────────────────────────────────────────────────────── */
.sitefoot { border-top: 1px solid var(--line); padding: 52px 0 30px; background: #0c1216; }
.foot-h {
  font-family: var(--mono); font-size: 11px; letter-spacing: .09em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 13px;
}
.footlink { display: block; color: var(--muted); font-size: .92rem; padding: 3px 0; }
.footlink:hover { color: var(--accent); text-decoration: none; }
.foot-base {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid var(--line); margin-top: 38px; padding-top: 22px;
}

/* ── Narrow screens ────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .vs-cols { grid-template-columns: 1fr; gap: 18px; }
  .mock-grid { height: 300px; }
}
@media (max-width: 620px) {
  .hero { padding: 56px 0 12px; }
  .band { padding: 60px 0; }
  .vs-row, .step { padding: 20px; gap: 14px; }
  .mock-grid { height: 260px; }
  .mock-gutter { flex-basis: 8px; }
  .keys { flex-basis: 118px; }
  .runtime-row { flex-direction: column; gap: 6px; }
  .runtime-k { flex-basis: auto; }
  .closer { margin-top: 48px; padding-top: 40px; }
}