:root{--bg:#EDF0EA;--panel:#fff;--ink:#14231E;--muted:#56665F;--line:#C9D3CC;--pri:#1F4FD8;--onpri:#fff;--on:#1FBF6B;--bad:#D93C45;--warn:#8A5F00;--okt:#17844A}
[data-tema=oscuro]{--bg:#0E1814;--panel:#16251F;--ink:#E6EFEA;--muted:#93A79D;--line:#2A3D35;--pri:#7C9DFF;--onpri:#0E1814;--warn:#F0BE4A;--okt:#1FBF6B}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 'IBM Plex Sans',system-ui,sans-serif}
h1,h2{font-family:'Bricolage Grotesque',system-ui,sans-serif;line-height:1.15;margin:0}
.mono{font-family:'IBM Plex Mono',ui-monospace,monospace}
.hero{position:relative;background:#14352B;color:#EAF5EF;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,#14352B 35%,transparent)}
.banner{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-in{position:relative;z-index:2;max-width:900px;margin:auto;padding:28px 20px;display:flex;gap:16px;align-items:center}
.hero-in>div{flex:1}
h1{font-size:clamp(1.7rem,5vw,2.6rem);font-weight:800}
.hero p{margin:4px 0 0;max-width:42ch}
.tabs,.bar,main{max-width:900px;margin:auto;padding:0 20px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;padding-top:16px}
button{font:inherit;cursor:pointer;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:8px 14px}
.tabs button[aria-selected=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
button:disabled{opacity:.5;cursor:not-allowed}
button[aria-pressed=true]:not(.sw){background:var(--ink);color:var(--bg)}
.pri{background:var(--pri);color:var(--onpri);border-color:var(--pri);font-weight:600}
.ghost{background:transparent}
.hero .ghost{color:#EAF5EF;border-color:#5B8A77}
:focus-visible{outline:3px solid var(--pri);outline-offset:2px}
.bar{display:flex;gap:16px;align-items:center;justify-content:space-between;padding-top:14px;flex-wrap:wrap}
select,input{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--ink)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px;margin:16px 0}
.card h2{font-size:1.35rem;margin-bottom:4px}
.sub{color:var(--muted);margin:0 0 12px}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:10px 0}
.sws{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0}
.sw{display:grid;justify-items:center;gap:6px;padding:8px 6px;min-width:50px;background:transparent}
.sw .w{font-size:.75rem;color:var(--muted)}
.sw .knob{width:28px;height:52px;border-radius:14px;background:var(--line);position:relative;transition:background .12s}
.sw .knob::after{content:"";position:absolute;left:3px;bottom:3px;width:22px;height:22px;border-radius:50%;background:var(--panel);transition:bottom .12s}
.sw[aria-pressed=true] .knob{background:var(--on)}
.sw[aria-pressed=true] .knob::after{bottom:27px}
.vals{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:8px 0 14px}
.vals div{border:1px solid var(--line);border-radius:8px;padding:8px 12px}
.vals dt{font-size:.8rem;color:var(--muted)}
.vals dd{margin:0;font-size:1.25rem}
.q{font-size:1.1rem;margin:8px 0}
.fb{min-height:1.5em;font-weight:600;margin:8px 0}
.fb.ok{color:var(--okt)}.fb.bad{color:var(--bad)}.fb.hint{color:var(--warn)}
.tv{border-collapse:collapse;margin:10px 0}
.tv th,.tv td{border:1px solid var(--line);padding:6px 16px;text-align:center}
.tv th{background:var(--bg)}
.tv tr.ok td{background:rgba(31,191,107,.2)}
.tv tr.bad td{background:rgba(217,60,69,.2)}
.tv tr.act td{background:rgba(31,79,216,.16)}
.cell{width:46px;padding:4px}
.sim{display:flex;gap:28px;align-items:center;flex-wrap:wrap}
.led{width:64px;height:64px;border-radius:50%;background:var(--line);display:grid;place-items:center;font:500 1.4rem 'IBM Plex Mono',monospace}
.led.on{background:var(--on);box-shadow:0 0 24px var(--on);color:#06301A}
.expr{font-size:1.25rem;margin:6px 0}
.scroll{overflow-x:auto}
.pane[hidden]{display:none}
footer{text-align:center;color:var(--muted);padding:24px}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* Interruptor de modo claro / oscuro */
.tema-sw{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.06);border:1px solid #5B8A77;color:#EAF5EF;padding:5px 6px 5px 14px;border-radius:99px;font-size:.9rem}
.tema-sw .pista{position:relative;display:flex;align-items:center;justify-content:space-between;width:56px;height:28px;padding:0 7px;border-radius:99px;background:rgba(0,0,0,.3)}
.tema-sw .ic{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;position:relative;z-index:1;opacity:.7;transition:color .3s,opacity .3s}
.tema-sw .perilla{position:absolute;left:3px;top:3px;width:22px;height:22px;border-radius:50%;background:#EAF5EF;transition:transform .3s cubic-bezier(.3,1.4,.5,1)}
.tema-sw[aria-checked=true] .perilla{transform:translateX(28px)}
.tema-sw[aria-checked=false] .sol,.tema-sw[aria-checked=true] .luna{color:#14352B;opacity:1}

/* Pie de página */
.pie{border-top:1px solid var(--line);margin-top:32px;padding:22px 20px calc(22px + env(safe-area-inset-bottom));font-size:.9rem;text-align:left}
.pie-in{max-width:1040px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:6px 28px;flex-wrap:wrap}
.pie p{margin:0}
.pie a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--pri);padding-bottom:1px;transition:color .2s,border-color .2s}
.pie a:hover{color:var(--pri)}
.pie a svg{width:.85em;height:.85em;margin-left:.3em;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s}
.pie a:hover svg{transform:translate(2px,-2px)}
@media (max-width:640px){.pie-in{flex-direction:column;text-align:center}}