/* MIDoRI site — shared by the landing and install pages, both languages. */

:root {
  --bg: #f7faf7;
  --bg-alt: #edf4ee;
  --surface: #ffffff;
  --text: #17201a;
  --muted: #56645a;
  --line: #d5e2d8;
  --accent: #1f9d55;
  --accent-strong: #157a41;
  --accent-soft: #dcf3e4;
  --on-accent: #ffffff;
  --warn-bg: #fff6e0;
  --warn-line: #f0d48a;
  --code-surface: #122019;
  --code-text: #d8efe0;
  --code-key: #7ee2a8;
  --code-str: #f3d38b;
  --code-com: #7d968a;
  --shadow: 0 1px 2px rgba(16, 40, 24, .06), 0 8px 24px rgba(16, 40, 24, .06);
  --radius: 14px;
  --maxw: 1080px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1410;
    --bg-alt: #111b15;
    --surface: #16221b;
    --text: #e5efe8;
    --muted: #9db0a3;
    --line: #26372d;
    --accent: #3ccf7a;
    --accent-strong: #6be39b;
    --accent-soft: #173a26;
    --on-accent: #06210f;
    --warn-bg: #2c2512;
    --warn-line: #5a4a1d;
    --code-surface: #0a110d;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1410;
  --bg-alt: #111b15;
  --surface: #16221b;
  --text: #e5efe8;
  --muted: #9db0a3;
  --line: #26372d;
  --accent: #3ccf7a;
  --accent-strong: #6be39b;
  --accent-soft: #173a26;
  --on-accent: #06210f;
  --warn-bg: #2c2512;
  --warn-line: #5a4a1d;
  --code-surface: #0a110d;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  color-scheme: dark;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", "Noto Sans JP", system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
:lang(ja) body, body:lang(ja) { line-height: 1.85; }

a { color: var(--accent-strong); }
a:hover { color: var(--accent); }

img { max-width: 100%; }

code, pre, kbd {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9em;
}
:not(pre) > code {
  background: var(--accent-soft);
  padding: .1em .4em;
  border-radius: 6px;
}
kbd {
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: .05em .45em;
  background: var(--surface);
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; gap: 16px;
  height: 60px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; letter-spacing: .02em; font-size: 1.15rem;
  color: var(--text); text-decoration: none;
}
.logo-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #8bdc5b);
  display: grid; place-items: center;
  color: #fff; font-size: .8rem; font-weight: 900;
}
.nav { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.nav a {
  color: var(--muted); text-decoration: none;
  padding: 6px 10px; border-radius: 8px; font-size: .95rem;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: var(--bg-alt); }
.nav .lang { border: 1px solid var(--line); }
@media (max-width: 640px) {
  .nav .hide-sm { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 999px;
  font-weight: 700; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; font-size: 1rem;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-strong); color: var(--on-accent); }
.btn-ghost { border-color: var(--line); color: var(--text); background: var(--surface); }
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }

/* ---------- hero ---------- */
.hero { padding: 72px 0 56px; }
.hero .wrap {
  display: grid; gap: 48px; align-items: center;
  grid-template-columns: 1.05fr 1fr;
}
@media (max-width: 880px) { .hero .wrap { grid-template-columns: 1fr; } .hero { padding-top: 40px; } }
.eyebrow {
  display: inline-block; font-size: .85rem; font-weight: 700;
  color: var(--accent-strong); background: var(--accent-soft);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.15;
  margin: 0 0 18px; letter-spacing: -.01em;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead { font-size: 1.15rem; color: var(--muted); margin: 0 0 28px; max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero small { display: block; margin-top: 14px; color: var(--muted); }

/* ---------- code card ---------- */
.code-card {
  background: var(--code-surface); color: var(--code-text);
  border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden; min-width: 0;
}
.code-card .bar {
  display: flex; gap: 6px; padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: .8rem; color: var(--code-com); align-items: center;
}
.code-card .bar i { width: 10px; height: 10px; border-radius: 50%; background: #2c3d33; display: block; }
.code-card .bar span { margin-left: 8px; }
.code-card pre { margin: 0; padding: 18px 20px 22px; overflow-x: auto; line-height: 1.6; }
.code-card .k { color: var(--code-key); }
.code-card .s { color: var(--code-str); }
.code-card .c { color: var(--code-com); }

/* ---------- sections ---------- */
section { padding: 64px 0; }
section.alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
section h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin: 0 0 10px; line-height: 1.3; }
section .sub { color: var(--muted); margin: 0 0 36px; max-width: 42em; }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 880px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); }
.card .icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--accent-soft); color: var(--accent-strong);
  display: grid; place-items: center; margin-bottom: 14px;
}
.card .icon svg { width: 22px; height: 22px; }
.card ul { margin: 8px 0 0; padding-left: 1.2em; color: var(--muted); }

/* the flow diagram: gear -> MIDoRI -> gear */
.flow {
  display: grid; grid-template-columns: 1fr auto 1.2fr auto 1fr;
  gap: 14px; align-items: center; margin-top: 8px;
}
.flow .node {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; padding: 14px 16px; font-size: .95rem;
}
.flow .node b { display: block; margin-bottom: 4px; }
.flow .node span { color: var(--muted); font-size: .88rem; }
.flow .core { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); text-align: center; }
.flow .arrow { color: var(--accent); font-size: 1.4rem; text-align: center; }
@media (max-width: 760px) {
  .flow { grid-template-columns: 1fr; }
  .flow .arrow { transform: rotate(90deg); }
}

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .85rem; color: var(--muted); font-weight: 700; background: var(--bg-alt); }
tr:last-child td { border-bottom: 0; }
td .yes { color: var(--accent-strong); font-weight: 700; }
td .no { color: var(--muted); }

/* ---------- steps ---------- */
.steps { counter-reset: step; display: grid; gap: 18px; }
.step {
  position: relative; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 22px 22px 72px;
}
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 20px; top: 20px;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent); color: var(--on-accent); font-weight: 800;
  display: grid; place-items: center;
}
.step h3 { margin: 2px 0 8px; font-size: 1.15rem; }
.step p, .step li { color: var(--muted); }
.step p:last-child { margin-bottom: 0; }
@media (max-width: 520px) {
  .step { padding: 64px 18px 18px; }
}

/* ---------- install page ---------- */
.page-head { padding: 48px 0 8px; }
.page-head h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin: 0 0 10px; line-height: 1.25; }
.page-head p { color: var(--muted); margin: 0; max-width: 44em; }

.choices { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); margin-top: 14px; }
.choice { position: relative; }
.choice input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.choice label {
  display: block; height: 100%; cursor: pointer;
  background: var(--bg); border: 1.5px solid var(--line);
  border-radius: 12px; padding: 14px 16px;
}
.choice label b { display: block; color: var(--text); }
.choice label span { font-size: .88rem; color: var(--muted); display: block; margin-top: 4px; line-height: 1.55; }
.choice input:checked + label { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); background: var(--surface); }
.choice input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }
.choice input:disabled + label { opacity: .5; cursor: not-allowed; }

.note {
  border: 1px solid var(--warn-line); background: var(--warn-bg);
  border-radius: 12px; padding: 14px 16px; margin: 14px 0;
  color: var(--text);
}
.note.info { border-color: var(--line); background: var(--accent-soft); }
.note p { margin: 0; color: var(--text); }
.note p + p { margin-top: 6px; }

.install-box {
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
  margin-top: 8px;
}
.install-box .meta { color: var(--muted); font-size: .92rem; }

esp-web-install-button button[slot="activate"] { font-family: inherit; }

[data-board-only], [data-mode-only] { display: none; }
[data-board-only].show, [data-mode-only].show { display: block; }
li[data-board-only].show { display: list-item; }

details {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; padding: 0 18px; margin-bottom: 10px;
}
details summary { cursor: pointer; padding: 14px 0; font-weight: 700; }
details[open] summary { border-bottom: 1px solid var(--line); margin-bottom: 12px; }
details > *:last-child { margin-bottom: 16px; }
details p, details li { color: var(--muted); }

/* ---------- footer ---------- */
.site-footer { padding: 36px 0 48px; color: var(--muted); font-size: .9rem; border-top: 1px solid var(--line); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
.site-footer a { color: var(--muted); }

/* ======================================================================
   Landing page (DTM-focused) — hub diagram, patch matrix, scenes
   ====================================================================== */

.hero-visual { min-width: 0; }

/* hub diagram: MIDoRI in the middle, gear around it */
.hub { width: 100%; height: auto; display: block; }
.hub .wire { stroke: var(--accent); stroke-width: 2; fill: none; opacity: .55; }
.hub .wire.dashed { stroke-dasharray: 5 5; }
.hub .dev rect { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; }
.hub .dev text { fill: var(--text); font-size: 15px; font-weight: 700; }
.hub .dev text.port { fill: var(--muted); font-size: 12px; font-weight: 500; }
.hub .core rect.body { fill: var(--code-surface); stroke: var(--accent); stroke-width: 2.5; }
.hub .core rect.screen { fill: #0f2a1b; }
.hub .core .cell { fill: #224a33; }
.hub .core .on { fill: #3ccf7a; }
.hub .core text { fill: #d8efe0; font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.hub .pulse { fill: var(--accent); }

/* scene cards: "problem -> what MIDoRI does" */
.scene { display: flex; flex-direction: column; gap: 10px; }
.scene .tag {
  align-self: flex-start; font-size: .78rem; font-weight: 700;
  color: var(--accent-strong); background: var(--accent-soft);
  padding: 2px 10px; border-radius: 999px;
}
.scene .before { color: var(--muted); font-size: .92rem; }
.scene .before::before { content: "— "; }

/* split section: text + visual */
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: center; }
.split.flip { grid-template-columns: 1.1fr 1fr; }
.split.flip > :first-child { order: 2; }
@media (max-width: 880px) {
  .split, .split.flip { grid-template-columns: 1fr; }
  .split.flip > :first-child { order: 0; }
}
.checks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.checks li { padding-left: 30px; position: relative; color: var(--muted); }
.checks li b { color: var(--text); }
.checks li::before {
  content: ""; position: absolute; left: 0; top: .35em;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 5px var(--accent-soft), inset 0 0 0 9px var(--accent);
}

/* patch matrix mock (the MIDI Devices screen) */
.matrix {
  background: var(--code-surface); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; color: #d8efe0;
  overflow-x: auto;
}
.matrix .title { font-size: .8rem; color: #7d968a; margin-bottom: 10px; letter-spacing: .06em; }
.matrix table { border-collapse: separate; border-spacing: 6px; width: 100%; font-size: .85rem; min-width: 420px; }
.matrix th, .matrix td { border: 0; padding: 0; background: none; text-align: center; vertical-align: middle; }
.matrix thead th { color: #9fc2ad; font-weight: 700; font-size: .78rem; padding: 0 2px 4px; }
.matrix tbody th { color: #9fc2ad; font-weight: 700; text-align: right; padding-right: 6px; white-space: nowrap; font-size: .8rem; }
.matrix td span {
  display: grid; place-items: center; height: 38px; border-radius: 8px;
  background: #1a3326; color: transparent; font-weight: 800; font-size: .75rem;
}
.matrix td span.on { background: #3ccf7a; color: #06210f; }
.matrix td span.ch { background: #2b7a4f; color: #e6fbee; }
.matrix td span.x { background: transparent; }
.matrix .legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 12px; font-size: .78rem; color: #9fc2ad; }
.matrix .legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -1px; margin-right: 6px; }

/* port strip */
.ports { display: grid; gap: 14px; grid-template-columns: repeat(5, minmax(0, 1fr)); }
@media (max-width: 960px) { .ports { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .ports { grid-template-columns: 1fr; } }
.port-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.port-card .kind { font-size: .78rem; font-weight: 700; color: var(--accent-strong); letter-spacing: .04em; }
.port-card h3 { margin: 4px 0 6px; font-size: 1.05rem; }
.port-card p { margin: 0; color: var(--muted); font-size: .92rem; }

/* tested gear */
.gear { display: flex; flex-wrap: wrap; gap: 10px; }
.gear span {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 999px; padding: 6px 14px; font-size: .92rem;
}

/* the "for tinkerers" Ruby section stays quiet */
.extra { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
@media (max-width: 880px) { .extra { grid-template-columns: 1fr; } }
.extra .code-card pre { font-size: .85rem; }
.matrix.seq table { min-width: 460px; border-spacing: 4px; }
.matrix.seq td span { height: 24px; border-radius: 5px; }
.matrix.seq tbody th { min-width: 84px; }
@media (prefers-reduced-motion: reduce) { .hub .pulse { display: none; } }
@media (min-width: 640px) { .hero h1 .nw { white-space: nowrap; } }
.hero h1:lang(ja) { font-size: clamp(1.9rem, 4.2vw, 3rem); }
.matrix.seq td { width: 5.5%; }
.matrix.seq td span { min-width: 12px; }

/* boards table: features down the side, boards across */
#boards table { table-layout: fixed; min-width: 520px; }
#boards thead th:first-child, #boards tbody th { width: 26%; }
#boards thead th { color: var(--text); font-size: .95rem; }
#boards tbody th { font-weight: 700; color: var(--text); background: var(--bg-alt); font-size: .92rem; }
#boards td .yes { font-size: 1.05rem; margin-right: 8px; }
#boards td small { color: var(--muted); font-size: .88rem; }
.table-note { color: var(--muted); font-size: .9rem; margin: 12px 0 0; }
#boards thead th .no { color: var(--muted); font-weight: 500; font-size: .85rem; }
@media (max-width: 600px) {
  #boards table { min-width: 0; }
  #boards th, #boards td { padding: 10px 8px; }
  #boards thead th:first-child, #boards tbody th { width: 24%; }
  #boards td small { font-size: .82rem; }
}

/* screen mock-ups on the play cards */
.play-card { display: flex; flex-direction: column; }
.play-card .shot { width: 100%; height: auto; display: block; margin-bottom: 16px; border-radius: 10px; box-shadow: 0 0 0 1px var(--line); }

/* line illustrations on the scene cards (follow the theme) */
.scene .ill { width: 100%; height: auto; display: block; margin-bottom: 4px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px; }
.ill text { fill: var(--text); font-size: 11px; font-weight: 700; }
.ill text.small { font-size: 10px; fill: var(--muted); }
.ill text.acc { fill: var(--accent-strong); font-weight: 800; }
.ill text.midt { fill: var(--accent-strong); font-size: 11px; font-weight: 900; letter-spacing: .04em; }
.ill text.note { fill: var(--accent); font-size: 20px; }
.ill .box { fill: var(--surface); stroke: var(--muted); stroke-width: 1.3; }
.ill .mid { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 2; }
.ill .scr { fill: var(--surface); stroke: var(--accent); stroke-width: 1; opacity: .9; }
.ill .flow { stroke: var(--accent); stroke-width: 2; }
.ill .thin { stroke: var(--accent); stroke-width: 1.2; opacity: .6; }
.ill .ahead { fill: var(--accent); }
.ill .muted, .ill .lap { fill: none; stroke: var(--muted); stroke-width: 1.5; }
.ill .lap { stroke: var(--text); }
.ill .muted-fill { fill: var(--muted); }
.ill .no { stroke: #e0566c; stroke-width: 2.5; stroke-linecap: round; }
.ill .beat { fill: var(--line); }
.ill .beat.on { fill: var(--accent); }
.ill .grid { stroke: var(--accent); stroke-width: 1; stroke-dasharray: 2 3; opacity: .45; }
.ill .wave { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
.ill .kring { fill: none; stroke: var(--accent); stroke-width: 3; }
.ill .kneedle { stroke: var(--text); stroke-width: 2.5; stroke-linecap: round; }
.ill .kpad { fill: var(--accent); }
.ill .kpad.off { fill: var(--line); }

/* scene illustrations v2 */
.ill .play { fill: var(--accent); }
.ill .beat.first { fill: var(--accent-strong); }
.ill .grid.strong { opacity: .9; stroke-width: 1.5; stroke-dasharray: none; }
.ill .chip { fill: var(--surface); stroke: var(--accent); stroke-width: 1.3; }
.ill text.chipt { fill: var(--text); font-size: 10px; font-weight: 800; }
.ill text.chipt.small2 { font-size: 8.5px; fill: var(--accent-strong); }
.ill .pat { fill: var(--surface); stroke: var(--muted); stroke-width: 1.3; }
.ill .pat.on { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 2; }
.ill text.patt { fill: var(--muted); font-size: 9.5px; font-weight: 800; }
.ill text.patt.on { fill: var(--accent-strong); }

/* "make it yours": text + mock-up, then the code under both */
.make {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px 36px;
  align-items: center; margin-top: 40px;
  padding-top: 36px; border-top: 1px solid var(--line);
}
.make:first-of-type { border-top: 0; padding-top: 0; }
.make-text h3 { font-size: 1.3rem; margin: 0 0 8px; }
.make-text p { color: var(--muted); margin: 0; }
.make-shot .shot { width: 100%; height: auto; display: block; border-radius: var(--radius); box-shadow: var(--shadow); }
.make-code { grid-column: 1 / -1; }
.make-code pre { font-size: .84rem; }
.make-more { color: var(--muted); margin: 36px 0 0; }
@media (max-width: 880px) { .make { grid-template-columns: 1fr; } }
.make-shot { justify-self: center; width: 100%; max-width: 400px; }

/* connector illustrations on the port cards */
.port-card .porti { width: 100%; height: auto; display: block; margin-bottom: 12px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px; }
.porti .pbody { fill: var(--surface); stroke: var(--text); stroke-width: 2; }
.porti .pslot { fill: var(--bg-alt); stroke: var(--muted); stroke-width: 1.5; }
.porti .ptongue { fill: var(--accent); }
.porti .pmetal { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 2; }
.porti .pband { fill: var(--text); }
.porti .pcable { stroke: var(--text); stroke-width: 5; stroke-linecap: round; fill: none; }
.porti .pnotch { fill: var(--surface); stroke: var(--text); stroke-width: 2; }
.porti .pin { fill: var(--accent); }
.porti .sym { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linecap: round; }
.porti .symf { fill: var(--accent); stroke: none; }
.porti .flowp { stroke: var(--accent); stroke-width: 2; }
.porti .lapp { fill: none; stroke: var(--text); stroke-width: 2; }
.porti .wavep { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; opacity: .7; }
.porti text.pt { fill: var(--text); font-size: 10px; font-weight: 800; }
.porti text.pt.dim { fill: var(--muted); font-weight: 600; }

/* patch section: tap / long-press guide, filter mark on matrix cells */
.howto { margin: 20px 0 4px; display: grid; gap: 10px; }
.howto div { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: baseline; }
.howto dt {
  font-weight: 800; font-size: .85rem; color: var(--on-accent); background: var(--accent);
  border-radius: 999px; padding: 2px 12px; min-width: 5.5em; text-align: center;
}
.howto dd { margin: 0; color: var(--muted); }
.matrix td span { position: relative; }
.matrix td span.f::after {
  content: "f"; position: absolute; top: 3px; right: 6px;
  color: #f3c76b; font-size: .72rem; font-weight: 900;
}

/* connection counts on the setup card */
.counts { list-style: none; margin: 4px 0 0; padding: 0; border-top: 1px solid var(--line); }
.counts li {
  display: flex; justify-content: space-between; gap: 12px; align-items: baseline;
  padding: 7px 0; border-bottom: 1px solid var(--line); font-size: .9rem; color: var(--muted);
}
.counts li b { color: var(--accent-strong); white-space: nowrap; }
.scene p.counts-note { font-size: .82rem; color: var(--muted); margin: 0; }
.card ul.counts { padding-left: 0; margin-top: 4px; }

/* sequencer section */
#tempo .split.flip { grid-template-columns: 1.15fr 1fr; }
.seq-h3 { font-size: 1.2rem; margin: 26px 0 8px; }
.seq-p { color: var(--muted); margin: 0 0 12px; }
.seq-routes { list-style: none; padding: 0; margin: 0 0 6px; display: grid; gap: 6px; }
.seq-routes li {
  display: grid; grid-template-columns: 5.5em 3.4em 1fr; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
  padding: 7px 12px; font-size: .92rem;
}
.seq-routes .ln { font-weight: 800; border-left: 4px solid var(--c); padding-left: 8px; }
.seq-routes .ch { color: var(--accent-strong); font-weight: 800; }
.seq-routes .to { color: var(--muted); }
.seq-routes .to::before { content: "→ "; color: var(--accent); }
.seq-shot { min-width: 0; }
.seq-shot .seqshot { width: 100%; height: auto; display: block; border-radius: var(--radius); box-shadow: var(--shadow); }
.shot-cap { color: var(--muted); font-size: .85rem; margin: 10px 2px 0; }
.seqshot .seq-next .blink { animation: seq-blink .5s steps(1, end) infinite; }
.seqshot .seq-head { animation: seq-head 2s steps(16, end) infinite; }
@keyframes seq-blink { 0% { opacity: 1; } 50% { opacity: 0; } }
@keyframes seq-head { from { transform: translateX(0); } to { transform: translateX(420px); } }
@media (prefers-reduced-motion: reduce) {
  .seqshot .seq-next .blink, .seqshot .seq-head { animation: none; }
}
@media (max-width: 880px) { #tempo .split.flip { grid-template-columns: 1fr; } }

/* promotional video */
.video-section { padding-top: 8px; }
.video-section h2 { text-align: center; margin-bottom: 20px; }
.video {
  position: relative; max-width: 880px; margin: 0 auto;
  aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); background: #000;
}
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ======================================================================
   Reference page — sidebar contents + one section per screen
   ====================================================================== */
.ref-layout {
  display: grid; grid-template-columns: 200px minmax(0, 1fr);
  gap: 40px; align-items: start; padding-bottom: 48px;
}
.ref-toc { position: sticky; top: 76px; padding-top: 32px; }
.ref-toc b { display: block; font-size: .78rem; letter-spacing: .06em; color: var(--muted); margin-bottom: 8px; }
.ref-toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.ref-toc a {
  display: block; padding: 5px 10px; border-radius: 8px;
  color: var(--muted); text-decoration: none; font-size: .93rem;
}
.ref-toc a:hover { color: var(--text); background: var(--bg-alt); }
@media (max-width: 880px) {
  .ref-layout { grid-template-columns: 1fr; gap: 0; }
  .ref-toc { position: static; padding-top: 24px; }
  .ref-toc ol { display: flex; flex-wrap: wrap; gap: 6px; }
  .ref-toc a { border: 1px solid var(--line); background: var(--surface); padding: 4px 12px; border-radius: 999px; font-size: .88rem; }
}

section.ref-sec { padding: 40px 0 8px; border-top: 1px solid var(--line); scroll-margin-top: 64px; }
section.ref-sec:first-child { border-top: 0; }
.ref-sec h2 { margin-bottom: 6px; }
.ref-sec h3 { font-size: 1.08rem; margin: 26px 0 8px; }
.ref-sec > p, .ref-sec li { color: var(--muted); }
.ref-sec > p { max-width: 46em; }
.ref-sec ul { padding-left: 1.2em; }
.ref-sec .table-wrap { margin: 10px 0 4px; }
.ref-sec td:first-child { white-space: nowrap; color: var(--text); font-weight: 700; }
.ref-sec td { color: var(--muted); }
@media (max-width: 600px) { .ref-sec td:first-child { white-space: normal; } }
.ref-sec .code-card { margin: 10px 0 4px; }
.ref-sec .code-card pre { font-size: .84rem; }
.ref-meta { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 14px; }
.ref-meta span {
  font-size: .78rem; font-weight: 700; color: var(--accent-strong);
  background: var(--accent-soft); padding: 2px 10px; border-radius: 999px;
}
.ref-more { font-size: .92rem; margin-top: 14px; }
.ref-more a { font-weight: 700; }

/* the header carries Install + Reference + language on phones */
@media (max-width: 420px) {
  .site-header .wrap { gap: 8px; }
  .logo { font-size: 1rem; gap: 8px; }
  .nav { gap: 2px; }
  .nav a { padding: 6px 6px; font-size: .88rem; }
}

/* "Open in the simulator" under a reference code card (tools/site_sim_links.rb) */
.code-card .sim-link {
  display: block; padding: 8px 20px 12px; font-size: .85rem; font-weight: 600;
  color: var(--code-key); text-decoration: none; border-top: 1px solid rgba(255,255,255,.08);
}
.code-card .sim-link:hover { text-decoration: underline; }