/* MOITUTU · Flash sichern — workshop-manual look: warm paper, technical drawings, one clear next action */
:root{
  --paper:#f2efe7; --panel:#fffdf8; --sunk:#f7f4ec; --ink:#1b1d1a; --ink2:#3b403b; --muted:#6b716b; --line:#dcd7ca; --line2:#e9e5da;
  --accent:#dc6f12; --accent-ink:#fff; --accent-soft:#fbe7d3;
  --ok:#23804f; --ok-soft:#dff1e6; --warn:#a86a06; --warn-soft:#f8ecd3; --danger:#c0312a; --danger-soft:#f9e0dd; --info:#2c64a8; --info-soft:#e1ebf7;
  --chip:#22262a; --chip-ink:#e8ece9; --pcb:#1e5e3e; --wire-sig:#dc6f12; --wire-pwr:#c0312a; --wire-gnd:#1b1d1a;
  --shadow:0 1px 0 rgba(30,25,10,.04),0 8px 24px -12px rgba(30,25,10,.18);
  --f-display:"Bricolage Grotesque",system-ui,sans-serif; --f-body:"Instrument Sans",system-ui,sans-serif; --f-mono:"JetBrains Mono",ui-monospace,monospace;
  --r:14px; color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --paper:#121411; --panel:#1a1d19; --sunk:#151814; --ink:#e9ece6; --ink2:#c9cec6; --muted:#949b92; --line:#2d322c; --line2:#242822;
  --accent:#f28c34; --accent-ink:#1d1104; --accent-soft:#3a2614;
  --ok:#4cbb7f; --ok-soft:#173022; --warn:#e0a640; --warn-soft:#33280f; --danger:#ef6a5f; --danger-soft:#3a1916; --info:#6ea3e6; --info-soft:#15243a;
  --chip:#0b0d0c; --chip-ink:#dfe5e0; --pcb:#2b7d55; --wire-gnd:#e9ece6; --shadow:0 1px 0 rgba(0,0,0,.3),0 10px 30px -14px rgba(0,0,0,.7); color-scheme:dark}}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 var(--f-body);min-height:100vh}
h1,h2,h3{font-family:var(--f-display);margin:0;letter-spacing:-.015em;text-wrap:balance;font-weight:700}
p{margin:0}
a{color:var(--info)}
button{font:inherit;color:inherit}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;border-radius:6px}
.mono{font-family:var(--f-mono)}
.kbd{font-family:var(--f-mono);font-size:.82em;padding:1px 6px;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;background:var(--panel)}

/* ---------- safety bar ---------- */
.safety{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:10px;padding:8px 16px;background:color-mix(in srgb,var(--ok-soft) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid color-mix(in srgb,var(--ok) 30%,var(--line));font-size:.86rem}
.safety svg{flex:none;color:var(--ok)}
.safety b{color:var(--ok)}
.safety button{all:unset;cursor:pointer;margin-left:auto;color:var(--ok);font-weight:600;white-space:nowrap}
.safety .exp{display:none}
.safety.open .exp{display:block;flex-basis:100%;color:var(--ink2);padding:2px 0 4px 30px}
.safety{flex-wrap:wrap}
.safety > span{flex:1;min-width:0}
@media (max-width:600px){.safety{font-size:.8rem;padding:7px 12px}.safety .long{display:none}}

/* ---------- shell ---------- */
.shell{display:grid;grid-template-columns:280px minmax(0,1fr);gap:28px;max-width:1180px;margin:0 auto;padding:24px 16px 80px}
@media (max-width:880px){.shell{grid-template-columns:1fr;gap:14px;padding-top:12px}}

.brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.brand .logo{width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--paper);display:grid;place-items:center;font-family:var(--f-display);font-weight:700;font-size:1.05rem}
.brand b{font-family:var(--f-display);font-size:1.05rem;display:block;line-height:1.1}
.brand span{font-size:.78rem;color:var(--muted)}

.rail{position:sticky;top:64px;align-self:start}
.rail ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;position:relative}
.rail ol::before{content:"";position:absolute;left:15px;top:14px;bottom:14px;width:2px;background:var(--line)}
.rail li button{all:unset;cursor:pointer;display:grid;grid-template-columns:32px 1fr;gap:10px;align-items:center;padding:6px 8px 6px 0;border-radius:10px;width:100%;position:relative}
.rail li button:hover .t{color:var(--ink)}
.rail .n{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font:600 .8rem var(--f-mono);background:var(--paper);border:2px solid var(--line);color:var(--muted);position:relative;z-index:1;transition:all .2s}
.rail .t{font-size:.9rem;color:var(--muted);line-height:1.25}
.rail .t small{display:block;font-size:.72rem;opacity:.8}
.rail li.done .n{background:var(--ok);border-color:var(--ok);color:#fff}
.rail li.cur .n{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);box-shadow:0 0 0 5px var(--accent-soft)}
.rail li.cur .t{color:var(--ink);font-weight:600}
.rail .foot{margin-top:18px;font-size:.78rem;color:var(--muted);display:flex;flex-direction:column;gap:6px}
.rail .foot button{all:unset;cursor:pointer;color:var(--muted);text-decoration:underline;text-underline-offset:3px}
@media (max-width:880px){
  .rail{position:static}
  .rail ol,.rail .foot{display:none}
  .brand{margin-bottom:6px}
}
.mprog{display:none}
@media (max-width:880px){
  .mprog{display:flex;flex-direction:column;gap:6px}
  .mprog .bar{height:6px;border-radius:99px;background:var(--line);overflow:hidden}
  .mprog .bar i{display:block;height:100%;background:var(--accent);border-radius:99px;transition:width .3s}
  .mprog .lbl{display:flex;justify-content:space-between;font-size:.8rem;color:var(--muted)}
  .mprog select{font:inherit;font-size:.85rem;padding:6px 8px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink)}
}

/* ---------- step ---------- */
.step{display:flex;flex-direction:column;gap:18px;animation:in .25s ease}
@keyframes in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.kicker{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:.8rem;color:var(--muted)}
.kicker .pill{background:var(--panel)}
.step h1{font-size:clamp(1.7rem,3.6vw,2.4rem);line-height:1.08}
.lead{font-size:1.06rem;color:var(--ink2);max-width:62ch}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:var(--shadow);min-width:0}
.card h3{font-size:1rem;margin-bottom:8px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:.76rem;font-weight:600;padding:3px 10px;border-radius:99px;border:1px solid var(--line);white-space:nowrap}
.pill.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 45%,transparent);background:var(--ok-soft)}
.pill.bad{color:var(--danger);border-color:color-mix(in srgb,var(--danger) 45%,transparent);background:var(--danger-soft)}
.pill.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 45%,transparent);background:var(--warn-soft)}
.pill.sim{color:var(--info);border-color:color-mix(in srgb,var(--info) 45%,transparent);background:var(--info-soft)}

.callout{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;padding:12px 14px;border-radius:12px;border:1px solid;font-size:.93rem}
.callout svg{grid-row:span 2;margin-top:2px}
.callout b{font-weight:700}
.callout.stop{background:var(--danger-soft);border-color:color-mix(in srgb,var(--danger) 35%,transparent);color:var(--ink)}
.callout.stop svg{color:var(--danger)}
.callout.warn{background:var(--warn-soft);border-color:color-mix(in srgb,var(--warn) 35%,transparent)}
.callout.warn svg{color:var(--warn)}
.callout.info{background:var(--info-soft);border-color:color-mix(in srgb,var(--info) 30%,transparent)}
.callout.info svg{color:var(--info)}
.callout.ok{background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 35%,transparent)}
.callout.ok svg{color:var(--ok)}

/* checklist */
.checks{display:flex;flex-direction:column;gap:8px;margin:0;padding:0;list-style:none}
.checks li label{display:grid;grid-template-columns:26px 1fr;gap:12px;align-items:start;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--panel);cursor:pointer;transition:border-color .15s,background .15s}
.checks li label:hover{border-color:color-mix(in srgb,var(--accent) 50%,var(--line))}
.checks input{appearance:none;width:26px;height:26px;border-radius:8px;border:2px solid var(--line);margin:0;display:grid;place-items:center;background:var(--sunk);cursor:pointer;transition:all .15s}
.checks input:checked{background:var(--ok);border-color:var(--ok)}
.checks input:checked::after{content:"";width:12px;height:7px;border-left:3px solid #fff;border-bottom:3px solid #fff;transform:rotate(-45deg) translate(1px,-1px)}
.checks li.on label{background:color-mix(in srgb,var(--ok-soft) 55%,var(--panel));border-color:color-mix(in srgb,var(--ok) 35%,var(--line))}
.checks .ct{font-weight:600}
.checks .cd{font-size:.88rem;color:var(--muted);margin-top:2px}

/* material */
.mat{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.mat div{border:1px solid var(--line);border-radius:12px;padding:12px;background:var(--sunk);display:flex;flex-direction:column;gap:6px;font-size:.86rem}
.mat svg{color:var(--ink2)}
.mat b{font-size:.92rem}
.mat span{color:var(--muted);font-size:.8rem}

/* nav */
.nav{display:flex;gap:10px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:18px;margin-top:4px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--panel);padding:11px 18px;border-radius:12px;font-weight:600;font-size:.95rem;cursor:pointer;transition:transform .08s,background .15s,border-color .15s;text-decoration:none;color:var(--ink)}
.btn:hover:not(:disabled){border-color:color-mix(in srgb,var(--accent) 60%,var(--line))}
.btn:active:not(:disabled){transform:translateY(1px)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);box-shadow:0 6px 18px -8px color-mix(in srgb,var(--accent) 80%,transparent)}
.btn.primary:hover:not(:disabled){filter:brightness(1.05)}
.btn.big{padding:14px 22px;font-size:1.02rem;border-radius:14px}
.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn.ghost:hover{color:var(--ink)}
.nav .hint{font-size:.82rem;color:var(--muted);flex:1 1 180px;text-align:right}
@media (max-width:600px){.nav .hint{text-align:left;order:3;flex-basis:100%}.nav #nextBtn{flex:1}}
main:focus{outline:none}

/* figures */
figure{margin:0}
.fig{background:var(--sunk);border:1px solid var(--line2);border-radius:var(--r);padding:12px;overflow-x:auto}
.fig svg{display:block;width:100%;height:auto}
.fig figcaption{font-size:.8rem;color:var(--muted);margin-top:8px}
svg text{font-family:var(--f-mono)}

/* pin map */
.pinmap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:14px;align-items:start}
@media (max-width:720px){.pinmap{grid-template-columns:1fr}}
.wires{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.wires li{display:grid;grid-template-columns:26px 1fr auto;gap:10px;align-items:center;padding:9px 12px;border:1px solid var(--line);border-radius:12px;background:var(--panel);cursor:pointer;transition:all .15s}
.wires li:hover,.wires li.hl{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.wires li.on{background:color-mix(in srgb,var(--ok-soft) 55%,var(--panel))}
.wires input{appearance:none;width:24px;height:24px;border-radius:7px;border:2px solid var(--line);margin:0;display:grid;place-items:center;background:var(--sunk);cursor:pointer}
.wires input:checked{background:var(--ok);border-color:var(--ok)}
.wires input:checked::after{content:"";width:11px;height:6px;border-left:3px solid #fff;border-bottom:3px solid #fff;transform:rotate(-45deg) translate(1px,-1px)}
.wires .w1{display:flex;align-items:center;gap:8px;font-weight:600;font-size:.92rem;flex-wrap:wrap}
.wires .sw{width:22px;height:5px;border-radius:3px;flex:none}
.wires .w2{font-size:.8rem;color:var(--muted)}
.wires .to{font-family:var(--f-mono);font-size:.82rem;font-weight:600;text-align:right;white-space:nowrap}
.wcount{display:flex;align-items:center;gap:10px;font-size:.86rem;color:var(--muted)}
.wcount .bar{flex:1;height:6px;border-radius:99px;background:var(--line);overflow:hidden}
.wcount .bar i{display:block;height:100%;background:var(--ok);transition:width .25s}
.pin-hl{filter:drop-shadow(0 0 6px var(--accent))}

/* ---------- reader ---------- */
.reader{display:flex;flex-direction:column;gap:14px}
.rhead{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}
.seg{display:inline-flex;padding:3px;border-radius:12px;background:var(--sunk);border:1px solid var(--line)}
.seg button{all:unset;cursor:pointer;padding:7px 14px;border-radius:9px;font-weight:600;font-size:.88rem;color:var(--muted)}
.seg button[aria-pressed=true]{background:var(--panel);color:var(--ink);box-shadow:var(--shadow)}
.seg button:focus-visible{outline:2px solid var(--accent)}
.scen{display:flex;flex-wrap:wrap;gap:6px}
.scen button{all:unset;cursor:pointer;font-size:.8rem;font-weight:600;padding:6px 11px;border-radius:99px;border:1px solid var(--line);background:var(--panel);color:var(--ink2)}
.scen button[aria-pressed=true]{border-color:var(--info);background:var(--info-soft);color:var(--info)}
.scen button .tick{color:var(--ok);margin-left:4px}
.scen button:focus-visible{outline:2px solid var(--accent)}
.rmeta{display:flex;gap:8px;align-items:center;font-size:.82rem;color:var(--muted)}
.rmeta select{font:inherit;font-size:.82rem;padding:5px 8px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.fact{border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--sunk);min-width:0}
.fact span{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
.fact b{font-family:var(--f-mono);font-size:.95rem;display:block;overflow-wrap:anywhere;margin-top:2px}
.fact small{display:block;font-size:.76rem;color:var(--muted);margin-top:1px}
.fact.ok{border-color:color-mix(in srgb,var(--ok) 40%,var(--line))}
.fact.bad{border-color:color-mix(in srgb,var(--danger) 40%,var(--line));background:var(--danger-soft)}
.passes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.pass{border:1px solid var(--line);border-radius:14px;padding:12px;background:var(--panel);display:flex;flex-direction:column;align-items:center;gap:8px;min-width:0}
.pass .ring{position:relative;width:76px;height:76px}
.pass .ring svg{transform:rotate(-90deg)}
.pass .ring b{position:absolute;inset:0;display:grid;place-items:center;font:600 .9rem var(--f-mono)}
.pass .lbl{font-size:.78rem;color:var(--muted);text-align:center}
.pass .stripe{display:flex;width:100%;height:12px;border-radius:4px;overflow:hidden;background:var(--line2)}
.pass .stripe i{flex:1}
.pass .hx{font:500 .7rem var(--f-mono);color:var(--muted);overflow-wrap:anywhere;text-align:center}
.pass.match{border-color:color-mix(in srgb,var(--ok) 50%,var(--line))}
.pass.miss{border-color:color-mix(in srgb,var(--danger) 55%,var(--line))}
.verdict{border-radius:14px;padding:14px 16px;display:grid;grid-template-columns:auto 1fr;gap:4px 14px;align-items:start}
.verdict svg{grid-row:span 2}
.verdict b{font-family:var(--f-display);font-size:1.12rem}
.verdict p{font-size:.92rem;color:var(--ink2)}
.verdict.ok{background:var(--ok-soft);border:1px solid color-mix(in srgb,var(--ok) 40%,transparent)} .verdict.ok svg{color:var(--ok)}
.verdict.bad{background:var(--danger-soft);border:1px solid color-mix(in srgb,var(--danger) 40%,transparent)} .verdict.bad svg{color:var(--danger)}
.verdict.info{background:var(--info-soft);border:1px solid color-mix(in srgb,var(--info) 30%,transparent)} .verdict.info svg{color:var(--info)}
.ractions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
details.log summary{cursor:pointer;font-size:.84rem;color:var(--muted);font-weight:600}
.logbox{margin-top:8px;background:#141714;color:#cfe3d4;font:12px/1.6 var(--f-mono);border-radius:10px;padding:10px 12px;max-height:260px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere}
.logbox .e{color:#ff9a8f}.logbox .o{color:#90e2aa}.logbox .w{color:#f3c66d}

/* upload */
.drop{border:2px dashed var(--line);border-radius:14px;padding:18px;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;background:var(--sunk);transition:border-color .15s}
.drop.over{border-color:var(--accent)}
.drop img{max-width:100%;max-height:260px;border-radius:10px;box-shadow:var(--shadow)}
.drop .note{font-size:.84rem;color:var(--muted)}

.trouble{display:flex;flex-direction:column;gap:8px}
.trouble details{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:10px 14px}
.trouble summary{cursor:pointer;font-weight:600;font-size:.92rem}
.trouble p{font-size:.9rem;color:var(--ink2);margin-top:6px}
pre{background:#141714;color:#cfe3d4;padding:12px;border-radius:10px;overflow-x:auto;font:12px/1.6 var(--f-mono);margin:8px 0 0}

.confetti{position:fixed;inset:0;pointer-events:none;z-index:50}