/* SPDX-License-Identifier: AGPL-3.0-or-later */
/* Muster — site styles. Tokens mirror apps/web/src/styles.css: one accent, paper and ink. */
:root {
  --paper: #F2F3F0;
  --paper-2: #E9EAE6;
  --card: #FFFFFF;
  --ink: #121413;
  --ink-2: #2A2D2B;
  --muted: #5B5F5C;
  --line: rgba(18, 20, 19, 0.12);
  --line-strong: rgba(18, 20, 19, 0.22);
  --signal: #FF5A1F;
  --signal-ink: #C2410C;            /* accent as small text on paper: 4.9:1 */
  --signal-lg: #E5470B;             /* accent as large display text: 3.5:1 */
  --ok: #127548;
  --warn: #9A6500;
  --crit: #CC2A1E;
  --display: "Instrument Sans", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 48px);
  --radius: 14px;
  --ease: cubic-bezier(.2, .7, .1, 1);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 88px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 17px/1.6 var(--display); font-stretch: 100%;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, video, svg { display: block; max-width: 100%; }
figure { margin: 0; }
[hidden] { display: none !important; }
a { color: inherit; }
::selection { background: var(--signal); color: #fff; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: #fff; padding: 10px 14px; border-radius: 8px; text-decoration: none; }
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--mono); }
.kicker { font: 500 13px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); display: inline-flex; align-items: center; gap: 12px; }
.kicker b { color: var(--signal-ink); font-weight: 600; letter-spacing: .04em; }
.phase { display: inline-flex; gap: 3px; }
.phase i { width: 9px; height: 3px; background: var(--line-strong); }
.phase i.on { background: var(--ink); }

/* ---------- top bar ---------- */
.top { position: sticky; top: 0; z-index: 50; background: rgba(242, 243, 240, .86); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.top.scrolled { border-bottom-color: var(--line); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 600 20px/1 var(--display); letter-spacing: -.02em; text-decoration: none; }
.brand svg { width: 26px; height: 26px; }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a { font-size: 15px; text-decoration: none; color: var(--ink-2); padding: 10px 12px; border-radius: 8px; transition: background .15s, color .15s; }
.nav a:hover { background: var(--paper-2); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.btn { --h: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: var(--h); padding: 0 20px; border-radius: 999px; border: 1px solid var(--ink); background: var(--ink); color: #fff; font: 600 15px/1 var(--display); text-decoration: none; cursor: pointer; transition: transform .15s var(--ease), background .15s, color .15s; white-space: nowrap; }
.btn:hover { background: var(--ink-2); }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn.ghost:hover { background: var(--card); border-color: var(--ink); }
.btn.sm { --h: 38px; padding: 0 16px; font-size: 14px; }
.btn svg { width: 18px; height: 18px; }
.menu-btn { display: none; }

@media (max-width: 860px) {
  .nav { display: none; position: absolute; left: 0; right: 0; top: 68px; flex-direction: column; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 4px; font-size: 17px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .menu-btn { display: inline-flex; margin-left: auto; width: 44px; height: 44px; align-items: center; justify-content: center; border: 1px solid var(--line-strong); border-radius: 999px; background: transparent; cursor: pointer; }
  .top .cta { display: none; }
}

/* ---------- hero ---------- */
.hero { padding: clamp(32px, 5vw, 72px) 0 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: end; }
.display { font-family: var(--display); font-weight: 600; font-stretch: 82%; letter-spacing: -.045em; line-height: .9; margin: 0; }
.hero h1 { font-size: clamp(50px, 7.4vw, 116px); }
.hero h1 em, .accent { font-style: normal; color: var(--signal-lg); }
.hero .lede { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.5; color: var(--ink-2); margin: 0 0 28px; max-width: 34ch; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hero .kicker { margin-bottom: 28px; }

.cmd { display: flex; align-items: center; gap: 12px; margin-top: 18px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 6px 6px 6px 16px; font: 500 14.5px/1 var(--mono); max-width: 460px; }
.cmd span { color: var(--muted); user-select: none; }
.cmd code { flex: 1; overflow-x: auto; white-space: nowrap; padding: 10px 0; scrollbar-width: none; }
.copy { flex: none; width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--line); background: var(--paper); cursor: pointer; display: grid; place-items: center; color: var(--ink); transition: background .15s; }
.copy:hover { background: var(--paper-2); }
.copy svg { width: 17px; height: 17px; }
.copy[data-done] { color: var(--ok); }

.film { margin-top: clamp(32px, 4vw, 56px); position: relative; }
.film-frame { position: relative; border-radius: 20px; overflow: hidden; background: var(--paper); border: 1px solid var(--line); aspect-ratio: 16 / 9; box-shadow: 0 30px 80px -40px rgba(18, 20, 19, .35); }
.film-frame video, .film-frame img { width: 100%; height: 100%; object-fit: cover; }
.film-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 4px 0; }
.film-bar .kicker { font-size: 12px; }
.film-ctrl { display: flex; gap: 8px; }
.icon-btn { width: 44px; height: 44px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--card); color: var(--ink); display: grid; place-items: center; cursor: pointer; transition: background .15s, border-color .15s; }
.icon-btn:hover { border-color: var(--ink); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn .when-on { display: none; }
.icon-btn[aria-pressed="true"] .when-on { display: block; }
.icon-btn[aria-pressed="true"] .when-off { display: none; }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .film-frame { border-radius: 14px; }
}

/* ---------- strip of facts ---------- */
.facts { margin-top: clamp(56px, 8vw, 112px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.facts ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.facts li { padding: 26px 24px 26px 0; border-right: 1px solid var(--line); }
.facts li + li { padding-left: 24px; }
.facts li:last-child { border-right: 0; }
.facts strong { display: block; font: 600 clamp(30px, 3.4vw, 44px)/1 var(--display); font-stretch: 82%; letter-spacing: -.03em; }
.facts span { display: block; margin-top: 8px; color: var(--muted); font-size: 15px; line-height: 1.4; }
@media (max-width: 760px) {
  .facts ul { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .facts li { padding: 20px 12px 20px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .facts li + li { padding-left: 0; }
  .facts li:nth-child(odd) { border-right: 1px solid var(--line); }
  .facts li:nth-child(even) { padding-left: 16px; }
  .facts li:nth-last-child(-n+2) { border-bottom: 0; }
}

/* ---------- sections ---------- */
section { padding: clamp(72px, 10vw, 140px) 0 0; }
.sec-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; align-items: end; margin-bottom: clamp(36px, 5vw, 64px); }
.sec-head h2 { font-size: clamp(40px, 5.6vw, 80px); }
.sec-head p { margin: 0; color: var(--ink-2); font-size: 19px; max-width: 46ch; justify-self: end; }
@media (max-width: 860px) { .sec-head { grid-template-columns: minmax(0, 1fr); } .sec-head p { justify-self: start; } }

/* steps: number rail + text + real screen */
.steps { display: grid; gap: clamp(56px, 8vw, 112px); }
.step { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(24px, 4vw, 64px); align-items: start; }
.step:nth-child(even) { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }
.step:nth-child(even) .step-text { order: 2; }
.step-text { position: sticky; top: 108px; padding-top: 8px; }
.step-num { font: 500 13px/1 var(--mono); color: var(--signal-ink); letter-spacing: .1em; display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.step-num::after { content: ""; height: 1px; flex: 1; background: var(--line-strong); max-width: 120px; }
.step h3 { font: 600 clamp(30px, 3vw, 42px)/1.02 var(--display); font-stretch: 84%; letter-spacing: -.03em; margin: 0 0 16px; }
.step p { margin: 0 0 16px; color: var(--ink-2); }
.step ul { margin: 18px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.step li { position: relative; padding: 11px 0 11px 20px; border-bottom: 1px solid var(--line); font-size: 15.5px; }
.step li::before { content: ""; position: absolute; left: 0; top: 21px; width: 6px; height: 6px; background: var(--ink); }
.shot { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--card); box-shadow: 0 24px 60px -36px rgba(18, 20, 19, .4); }
.shot img { width: 100%; height: auto; aspect-ratio: 16 / 10; }
figcaption { margin-top: 12px; font: 400 13px/1.4 var(--mono); color: var(--muted); }
@media (max-width: 860px) {
  .step { grid-template-columns: minmax(0, 1fr); }
  .step:nth-child(even) { grid-template-columns: minmax(0, 1fr); }
  .step:nth-child(even) .step-text { order: 0; }
  .step-text { position: static; }
}

/* playbook library */
.library { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.pb { background: var(--card); padding: 20px 18px 22px; min-height: 172px; display: flex; flex-direction: column; gap: 10px; transition: background .15s; }
.pb:hover { background: #FBFBFA; }
.pb .code { font: 500 12.5px/1 var(--mono); color: var(--muted); display: flex; justify-content: space-between; align-items: center; }
.pb h3 { font: 600 19px/1.15 var(--display); letter-spacing: -.015em; margin: 0; }
.pb p { margin: auto 0 0; font-size: 14px; line-height: 1.45; color: var(--muted); }
.sev { font: 500 11.5px/1 var(--mono); display: inline-flex; align-items: center; gap: 6px; color: var(--ink-2); }
.sev::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.sev.crit { color: var(--crit); } .sev.high { color: var(--warn); } .sev.med { color: var(--muted); }
@media (max-width: 1100px) { .library { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 640px) { .library { grid-template-columns: repeat(2, minmax(0, 1fr)); } .pb { min-height: 150px; padding: 16px 14px; } }
.note { margin-top: 18px; color: var(--muted); font-size: 15px; }

/* features */
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.feat { padding: 32px 32px 36px 0; border-bottom: 1px solid var(--line); }
.feat:not(:nth-child(3n)) { border-right: 1px solid var(--line); }
.feat:not(:nth-child(3n+1)) { padding-left: 32px; }
.feat svg { width: 26px; height: 26px; margin-bottom: 22px; stroke: var(--ink); }
.feat h3 { font: 600 21px/1.2 var(--display); letter-spacing: -.015em; margin: 0 0 8px; }
.feat p { margin: 0; color: var(--ink-2); font-size: 16px; line-height: 1.55; }
@media (max-width: 960px) {
  .features { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .feat, .feat:not(:nth-child(3n+1)) { padding: 28px 24px 30px 0; border-right: 0; }
  .feat:nth-child(odd) { border-right: 1px solid var(--line); }
  .feat:nth-child(even) { padding-left: 24px; }
}
@media (max-width: 600px) {
  .features { grid-template-columns: minmax(0, 1fr); }
  .feat, .feat:nth-child(even) { padding: 26px 0; border-right: 0 !important; }
}

/* dark-mode duo */
.duo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
@media (max-width: 760px) { .duo { grid-template-columns: minmax(0, 1fr); } }

/* architecture */
.arch { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(24px, 5vw, 80px); }
.tree { margin: 0; align-self: start; background: var(--ink); color: #E7E8E4; border-radius: var(--radius); padding: 28px; font: 400 14px/1.9 var(--mono); overflow-x: auto; }
.tree b { color: #fff; font-weight: 600; }
.tree i { color: #8E938F; font-style: normal; }
.checks { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.checks li { padding: 16px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 180px 1fr; gap: 16px; }
.checks strong { font-weight: 600; }
.checks span { color: var(--ink-2); }
@media (max-width: 860px) { .arch { grid-template-columns: minmax(0, 1fr); } .checks li { grid-template-columns: minmax(0, 1fr); gap: 4px; } }

/* get started block */
.start { margin-top: clamp(72px, 10vw, 140px); background: var(--ink); color: #fff; border-radius: 24px; padding: clamp(32px, 6vw, 80px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); }
.start h2 { font-size: clamp(44px, 6vw, 92px); }
.start p { color: #C9CCC7; margin: 22px 0 28px; max-width: 40ch; }
.start .btn { background: #fff; color: var(--ink); border-color: #fff; }
.start .btn:hover { background: var(--paper); }
.start .btn.ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .35); }
.start .btn.ghost:hover { border-color: #fff; }
.term { background: #1D201E; border: 1px solid rgba(255, 255, 255, .08); border-radius: 14px; overflow: hidden; align-self: center; }
.term-tabs { display: flex; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.term-tabs button { flex: 1; background: transparent; border: 0; color: #9DA29E; font: 500 13px/1 var(--mono); padding: 16px; cursor: pointer; border-bottom: 2px solid transparent; letter-spacing: .04em; }
.term-tabs button[aria-selected="true"] { color: #fff; border-bottom-color: var(--signal); }
.term pre { margin: 0; padding: 22px 24px 26px; font: 400 14.5px/1.9 var(--mono); color: #E7E8E4; overflow-x: auto; }
.term pre .c { color: #7E837F; }
.term pre .p { color: var(--signal); user-select: none; }
.term .copy { background: transparent; border-color: rgba(255, 255, 255, .15); color: #fff; }
.term-foot { display: flex; justify-content: space-between; align-items: center; padding: 0 16px 16px 24px; font: 400 13px/1.4 var(--mono); color: #9DA29E; gap: 12px; }
@media (max-width: 960px) { .start { grid-template-columns: minmax(0, 1fr); } }

/* community banner (Solid Geeks) */
.community { margin-top: clamp(64px, 8vw, 120px); }
.community a { display: block; border-radius: var(--radius); overflow: hidden; }
.community img { width: 100%; height: auto; }
.community + footer { margin-top: clamp(32px, 4vw, 56px); }

/* footer */
footer { margin-top: clamp(64px, 8vw, 120px); border-top: 1px solid var(--line); padding: 36px 0 48px; font-size: 14.5px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; align-items: center; }
footer nav { display: flex; gap: 20px; margin-left: auto; }
footer a { text-decoration: none; }
footer a:hover { color: var(--ink); text-decoration: underline; }

/* reveal on scroll (no-JS and reduced motion: shown) */
.js .rise { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .rise.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .rise { opacity: 1; transform: none; transition: none; } }

/* ================= docs ================= */
.docs { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); padding-top: 48px; }
.toc { position: sticky; top: 92px; align-self: start; max-height: calc(100vh - 110px); overflow-y: auto; padding-bottom: 24px; }
.toc p { font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 24px 0 10px; }
.toc p:first-child { margin-top: 0; }
.toc a { display: block; padding: 7px 10px; margin-left: -10px; border-radius: 6px; text-decoration: none; color: var(--ink-2); font-size: 15px; border-left: 2px solid transparent; }
.toc a:hover { background: var(--paper-2); }
.toc a.active { color: var(--ink); font-weight: 600; border-left-color: var(--signal); border-radius: 0 6px 6px 0; }
.doc { max-width: 780px; min-width: 0; padding-bottom: 40px; }
.doc h1 { font-size: clamp(48px, 6vw, 84px); margin-bottom: 20px; }
.doc .lede { font-size: 20px; color: var(--ink-2); margin: 0 0 8px; }
.doc h2 { font: 600 clamp(30px, 3vw, 38px)/1.05 var(--display); font-stretch: 86%; letter-spacing: -.03em; margin: 80px 0 18px; padding-top: 28px; border-top: 1px solid var(--line); }
.doc h3 { font: 600 21px/1.3 var(--display); letter-spacing: -.01em; margin: 36px 0 10px; }
.doc p, .doc li { color: var(--ink-2); }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc a { text-decoration-color: var(--signal); text-underline-offset: 3px; }
.doc code { font: 500 .88em/1 var(--mono); background: var(--card); border: 1px solid var(--line); padding: .18em .4em; border-radius: 5px; color: var(--ink); white-space: nowrap; }
.doc pre { position: relative; background: var(--ink); color: #E7E8E4; border-radius: 12px; padding: 20px 22px; overflow-x: auto; font: 400 14px/1.75 var(--mono); margin: 18px 0 24px; }
.doc pre code { background: none; border: 0; padding: 0; color: inherit; font: inherit; white-space: pre; }
.doc pre .c { color: #868B87; }
.doc pre .k { color: #FF9A70; }
.doc pre .copy { position: absolute; top: 10px; right: 10px; background: #2A2D2B; border-color: rgba(255,255,255,.12); color: #fff; }
.tbl { width: 100%; overflow-x: auto; margin: 18px 0 26px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.doc table { width: 100%; border-collapse: collapse; font-size: 15px; }
.doc th, .doc td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { font: 500 12.5px/1.2 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); background: #FAFAF8; }
.doc tr:last-child td { border-bottom: 0; }
.doc td code { white-space: nowrap; }
.yes { color: var(--ok); font-weight: 600; }
.no { color: #A3A7A4; }
.callout { border-left: 3px solid var(--signal); background: var(--card); padding: 16px 20px; border-radius: 0 10px 10px 0; margin: 22px 0; border-top: 1px solid var(--line); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.callout p { margin: 0; }
.method { font: 600 12px/1 var(--mono); padding: 4px 7px; border-radius: 5px; border: 1px solid var(--line-strong); display: inline-block; min-width: 58px; text-align: center; }
.method.get { color: var(--ok); } .method.post { color: var(--signal-ink); } .method.put, .method.patch { color: var(--warn); } .method.delete { color: var(--crit); }
kbd { font: 500 13px/1 var(--mono); border: 1px solid var(--line-strong); border-bottom-width: 2px; background: var(--card); border-radius: 5px; padding: 3px 7px; }
@media (max-width: 900px) {
  .docs { grid-template-columns: minmax(0, 1fr); padding-top: 24px; }
  .toc { position: static; max-height: none; border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; background: var(--card); }
  .toc .groups { columns: 2; }
}