/* Estilos compartidos de la página de exposición (index.html) y los instructivos (instructivos.html) */
:root{
  --bg:#f4f6fa;--surface:#fff;--surface2:#eef2f7;--ink:#17202f;--mut:#566178;--line:#dde3ee;
  --nav:#14213d;--acc:#1d5fa6;--acc2:#174d88;--acc-soft:#e3edf8;--warn:#b86f00;--bad:#c0392b;--ok:#1e8e4e;
  --shadow:0 1px 2px rgba(20,33,61,.06),0 8px 28px rgba(20,33,61,.08);--r:14px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0e1524;--surface:#152038;--surface2:#1b2947;--ink:#e7ecf6;--mut:#9eabc4;--line:#273655;
    --acc:#5b9ae0;--acc2:#8dbbef;--acc-soft:#18304c;--shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35);
    --bad:#ff8a7a;--warn:#f0b04a;--ok:#62d68f;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0e1524;--surface:#152038;--surface2:#1b2947;--ink:#e7ecf6;--mut:#9eabc4;--line:#273655;
  --acc:#5b9ae0;--acc2:#8dbbef;--acc-soft:#18304c;--shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35);
  --bad:#ff8a7a;--warn:#f0b04a;--ok:#62d68f;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased}
img,video{max-width:100%;display:block}
a{color:var(--acc2)}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em;text-wrap:balance}
h1{font-size:clamp(2rem,4.6vw,3.1rem);letter-spacing:-.02em}
h2{font-size:clamp(1.55rem,3vw,2.1rem)}
h3{font-size:1.1rem}
p{margin:0 0 1em}
code{font:.88em ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--surface2);padding:.1em .4em;border-radius:5px}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}
section{padding:72px 0}
section.alt{background:var(--surface2)}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--acc2);margin-bottom:10px}
.lead{font-size:1.15rem;color:var(--mut);max-width:62ch}
.sr{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:200;background:var(--surface);padding:8px 12px;border-radius:8px}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px;border-radius:6px}

/* crédito de KayreLabs */
.kl-creador{background:#0b1426;color:#aebbd4;font:400 14px/1.4 system-ui,-apple-system,'Segoe UI',sans-serif;border-bottom:1px solid #1c2a44}
.kl-creador .kl-in{width:min(1160px,100% - 32px);margin-inline:auto;display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;min-height:44px;padding:6px 0}
.kl-creador a{color:#8dbbef;text-decoration:none}
.kl-creador a:hover,.kl-creador a:focus-visible{color:#fff}
.kl-creador .kl-marca b{color:#fff;font-weight:700}
.kl-creador .kl-redes{margin-left:auto;display:flex;align-items:center;gap:8px}
.kl-creador .kl-contacto{padding:5px 12px;border:1px solid #2c4a6a;border-radius:999px;font-weight:600}
.kl-creador .kl-contacto:hover,.kl-creador .kl-contacto:focus-visible{background:#8dbbef;color:#0b1426;border-color:#8dbbef}
@media (max-width:640px){.kl-creador .kl-redes{margin-left:0}}

/* barra superior */
.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--nav) 94%,transparent);backdrop-filter:blur(8px);color:#fff}
.top .wrap{display:flex;align-items:center;gap:20px;height:58px}
.top b{font-size:.98rem;white-space:nowrap}
.top nav{display:flex;gap:4px;margin-left:auto;overflow-x:auto}
.top nav a{color:#cfd8ea;text-decoration:none;font-size:.9rem;padding:6px 10px;border-radius:8px;white-space:nowrap}
.top nav a:hover,.top nav a[aria-current]{background:rgba(255,255,255,.1);color:#fff}
.btn{display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:11px 20px;border-radius:10px}
.btn:hover{border-color:var(--acc)}
.btn.pri{background:var(--acc);border-color:var(--acc);color:#fff}
.btn.pri:hover{background:var(--acc2);border-color:var(--acc2)}
.top .btn{padding:7px 14px;font-size:.9rem;white-space:nowrap}
.top .btn.pri{color:#fff}
#tema{background:none;border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:8px;width:36px;height:34px;cursor:pointer;font-size:1rem;flex:none}
@media (max-width:760px){.top nav{display:none}.top .wrap{gap:10px}.top b{font-size:.9rem;overflow:hidden;text-overflow:ellipsis;margin-right:auto}}

/* hero */
.hero{padding:64px 0 56px;background:linear-gradient(160deg,var(--nav) 0%,#173f6e 120%);color:#fff;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:44px;align-items:center}
.hero .eyebrow{color:#9fc3e6}
.hero p.lead{color:#d6e0f2}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 26px;padding:0;list-style:none}
.chips li{font-size:.82rem;font-weight:600;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18)}
.hero .acciones{display:flex;flex-wrap:wrap;gap:10px}
.hero .btn{border-color:rgba(255,255,255,.35);background:transparent;color:#fff}
.hero .btn.pri{background:#fff;color:var(--nav);border-color:#fff}
.hero .btn.pri:hover{background:#e3edf8}
.hero small{display:block;margin-top:16px;color:#aebbd4;font-size:.85rem}
@media (max-width:900px){.hero .grid{grid-template-columns:1fr}}

/* marco de navegador */
.frame{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.frame .bar{display:flex;align-items:center;gap:6px;padding:9px 12px;background:var(--surface2);border-bottom:1px solid var(--line)}
.frame .bar i{width:10px;height:10px;border-radius:50%;background:#c5cddc;display:block}
.frame .bar span{margin-left:10px;flex:1;max-width:280px;font-size:.74rem;color:var(--mut);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:2px 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.frame video,.frame img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#0b1220;cursor:pointer}

/* cifras */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:-36px;position:relative;z-index:2}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow)}
.stat b{display:block;font-size:2rem;line-height:1.1;color:var(--acc2)}
.stat span{color:var(--mut);font-size:.9rem}
@media (max-width:760px){.stats{grid-template-columns:1fr}}

/* problema / solución */
.two{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:30px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow);min-width:0}
.card ul{margin:0;padding-left:1.2em}
.card li{margin-bottom:.45em}
.card li::marker{color:var(--acc)}
@media (max-width:860px){.two{grid-template-columns:1fr}}

/* recorrido */
.steps{display:grid;gap:56px;margin-top:40px}
.step{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:36px;align-items:center}
.step:nth-child(even){grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr)}
.step:nth-child(even) .txt{order:-1}
.step .num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--acc);color:#fff;font-weight:700;margin-bottom:10px}
.who{font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--acc2)}
.state{display:inline-block;font-size:.8rem;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--acc-soft);color:var(--acc2);margin-top:6px}
@media (max-width:860px){.step,.step:nth-child(even){grid-template-columns:1fr}.step:nth-child(even) .txt{order:0}}

/* flujos */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;margin-top:34px}
.cards .card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.cards .card .frame{border:0;border-radius:0;box-shadow:none;border-bottom:1px solid var(--line)}
.cards .card .body{padding:18px 20px 22px}
.cards .card h3{margin-bottom:.3em}
.cards .card p{margin:0;color:var(--mut);font-size:.93rem}
.final{margin-top:48px;text-align:center}
@media (max-width:400px){.cards{grid-template-columns:1fr}}

/* roles */
.roles{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:30px}
.role{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.role b{display:block;color:var(--acc2)}
.role span{display:block;color:var(--mut);font-size:.9rem;margin-top:4px}
.role em{font-style:normal;font-size:.75rem;font-weight:700;color:var(--mut);border:1px solid var(--line);border-radius:999px;padding:1px 8px;display:inline-block;margin:8px 4px 0 0}

/* tablas */
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);box-shadow:var(--shadow);margin-top:26px}
table{border-collapse:collapse;width:100%;min-width:560px}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top;font-size:.94rem}
th{font-size:.76rem;text-transform:uppercase;letter-spacing:.06em;color:var(--mut);background:var(--surface2)}
tr:last-child td{border-bottom:0}
td b{color:var(--acc2)}
.tag{display:inline-block;font-size:.78rem;font-weight:700;padding:2px 9px;border-radius:999px;white-space:nowrap}
.tag.bad{background:color-mix(in srgb,var(--bad) 16%,transparent);color:var(--bad)}
.tag.warn{background:color-mix(in srgb,var(--warn) 18%,transparent);color:var(--warn)}
.tag.ok{background:color-mix(in srgb,var(--ok) 16%,transparent);color:var(--ok)}

/* galería */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 22px}
.filters button{font:inherit;font-size:.9rem;font-weight:600;cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:7px 14px;border-radius:999px}
.filters button[aria-pressed="true"]{background:var(--acc);border-color:var(--acc);color:#fff}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.shot{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.shot button{display:block;width:100%;padding:0;border:0;background:none;cursor:zoom-in}
.shot img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top;background:var(--surface2)}
.shot.movil img{object-fit:contain;background:var(--surface2)}
.shot figcaption{padding:12px 14px 14px;font-size:.88rem;color:var(--mut)}
.shot figcaption b{display:block;color:var(--ink);margin-bottom:2px;font-size:.92rem}
dialog#visor{border:0;padding:0;background:#0a101d;max-width:none;max-height:none;width:100vw;height:100vh}
dialog#visor::backdrop{background:#0a101d}
.visor{display:grid;grid-template-rows:auto 1fr;height:100%;padding:16px;gap:12px}
.visor .head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;color:#fff}
.visor .head p{margin:0;flex:1 1 240px;font-size:.95rem}
.visor .head a,.visor .head button{color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);border-radius:8px;padding:7px 12px;font:inherit;font-size:.88rem;text-decoration:none;cursor:pointer}
.visor .head button:hover,.visor .head a:hover{background:rgba(255,255,255,.22)}
.visor .stage{overflow:auto;border-radius:10px;background:#0b1220;display:grid;justify-items:center;align-items:start}
.visor .stage img{width:min(100%,1500px);height:auto}
.visor.movil .stage img{width:min(100%,430px)}

/* arquitectura */
.arch{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:12px;margin-top:30px}
.node{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:var(--shadow)}
.node h3{font-size:1rem;color:var(--acc2);margin-bottom:.4em}
.node ul{margin:0;padding-left:1.1em;font-size:.9rem;color:var(--mut)}
.arrow{display:grid;place-items:center;color:var(--acc);font-size:1.5rem;font-weight:700}
@media (max-width:900px){.arch{grid-template-columns:1fr}.arrow{transform:rotate(90deg)}}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:30px}
.grid3 .card{padding:22px}
.grid3 .card h3{color:var(--acc2)}
.grid3 .card p{margin:0;color:var(--mut);font-size:.93rem}

/* instructivos */
.indice{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.indice a{font-size:.9rem;font-weight:600;text-decoration:none;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:7px 14px;border-radius:999px}
.indice a:hover{border-color:var(--acc)}
.tarea{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:28px;align-items:start;margin-top:30px}
.tarea ol{margin:0;padding-left:1.3em}
.tarea ol li{margin-bottom:.5em}
.tarea ol li::marker{color:var(--acc);font-weight:700}
.tarea .nota{margin-top:12px;font-size:.9rem;color:var(--mut);border-left:3px solid var(--acc);padding-left:12px}
@media (max-width:860px){.tarea{grid-template-columns:1fr}}

footer{padding:40px 0 56px;background:var(--nav);color:#aebbd4;font-size:.9rem}
footer b{color:#fff}
footer a{color:#8dbbef}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between}