:root{
  --navy:#0f172a; --indigo-deep:#1e1b4b; --indigo:#6366f1; --violet:#8b5cf6; --cyan:#06b6d4;
  --bg:#f6f7fb; --card:#ffffff; --ink:#0f172a; --muted:#5b6478; --line:#e3e6ef;
  --ok:#0f9d58; --ok-bg:#e6f6ec; --warn:#b45309; --warn-bg:#fff4e0; --err:#c62828; --err-bg:#fdecea;
  --radius:14px; --shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){--bg:#0b1020;--card:#141a2e;--ink:#eef0f8;--muted:#9aa3bd;--line:#252d48;--ok-bg:#12301f;--warn-bg:#3a2a0e;--err-bg:#3a1517;--shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35)}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 Inter,system-ui,sans-serif}
h1,h2,h3{font-family:"Plus Jakarta Sans",Inter,sans-serif;line-height:1.15;margin:0 0 .5em}
a{color:var(--indigo)}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}

/* cabecera de la app */
.app-head{background:var(--card);border-bottom:1px solid var(--line)}
.app-head .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 12px;padding-top:12px;padding-bottom:12px}
.brand{display:flex;align-items:center;gap:10px;font-family:"Plus Jakarta Sans";font-weight:800;font-size:18px}
.mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--indigo),var(--violet) 55%,var(--cyan));display:grid;place-items:center;color:#fff;font-size:15px}
.chip{display:flex;align-items:center;gap:10px}
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#334155,#64748b);flex:none}
.chip small{display:block;color:var(--muted);line-height:1.1}
.chip strong{display:block;line-height:1.2}

/* botones */
.btn{border:0;border-radius:12px;padding:12px 18px;font-weight:600;cursor:pointer;background:var(--indigo);color:#fff;min-height:44px}
.btn:hover{filter:brightness(1.07)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.danger{background:var(--err)}
.btn[disabled]{opacity:.45;cursor:not-allowed;filter:none}
:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}

/* inicio */
.hero{background:linear-gradient(135deg,#0f172a 0%,#1e1b4b 50%,#0f172a 100%);color:#fff;padding:64px 0 72px}
.hero h1{font-size:clamp(30px,6vw,48px);font-weight:800;max-width:15em}
.hero p{max-width:34em;color:#c9cfe6;font-size:18px}
.grad{background:linear-gradient(135deg,#818cf8,#a78bfa 50%,#22d3ee);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.tt-btn{display:inline-flex;align-items:center;gap:10px;background:#fff;color:#0f172a;border:0;border-radius:12px;padding:14px 22px;font-weight:700;font-size:17px;cursor:pointer;margin-top:12px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:-36px 0 32px}
.step{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.step .n{width:30px;height:30px;border-radius:50%;background:var(--indigo);color:#fff;display:grid;place-items:center;font-weight:700;margin-bottom:10px}
.foot{color:var(--muted);font-size:14px;padding:24px 0 48px;display:flex;flex-wrap:wrap;gap:8px 20px}

/* tarjetas y formularios */
.page{padding:24px 16px 56px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.row{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.tabs{display:flex;gap:6px;margin:16px 0;flex-wrap:wrap}
.tabs button{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:8px 14px;cursor:pointer}
.tabs button[aria-selected="true"]{background:var(--ink);color:var(--card);border-color:var(--ink)}
.post{display:grid;grid-template-columns:64px 1fr auto;gap:14px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}
.post:first-child{border-top:0}
.thumb{width:64px;height:88px;border-radius:10px;background:linear-gradient(160deg,#312e81,#0e7490);display:grid;place-items:center;color:#fff;font-size:12px}
.meta{color:var(--muted);font-size:14px}
.badge{display:inline-block;border-radius:999px;padding:3px 10px;font-size:13px;font-weight:600}
.b-sched{background:#e8e9ff;color:#3730a3}.b-ok{background:var(--ok-bg);color:var(--ok)}.b-err{background:var(--err-bg);color:var(--err)}
.note{border-radius:12px;padding:12px 14px;font-size:14px}
.note.warn{background:var(--warn-bg);color:var(--warn)}.note.err{background:var(--err-bg);color:var(--err)}.note.info{background:#eef2ff;color:#3730a3}

.grid2{display:grid;grid-template-columns:260px 1fr;gap:20px}
@media (max-width:760px){.grid2{grid-template-columns:1fr}.post{grid-template-columns:56px 1fr}.post .act{grid-column:1/-1}}
.preview{aspect-ratio:9/16;border-radius:16px;background:linear-gradient(170deg,#1e1b4b,#0e7490);display:grid;place-items:center;color:#fff;text-align:center;padding:12px}
@media (max-width:760px){.preview{aspect-ratio:auto;min-height:160px}}
.play{width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.2);display:grid;place-items:center;font-size:22px;margin:0 auto 8px}
.field{margin-bottom:18px}
.field>label,.field>.lbl{display:block;font-weight:600;margin-bottom:6px}
.help{color:var(--muted);font-size:14px;margin-top:4px}
input[type=datetime-local],select,textarea{width:100%;border:1px solid var(--line);background:var(--card);border-radius:10px;padding:11px 12px}
textarea{min-height:96px;resize:vertical}
.drop{border:2px dashed var(--line);border-radius:12px;padding:16px;text-align:center}
.checks{display:flex;flex-wrap:wrap;gap:8px 22px}
.checks label{display:flex;gap:8px;align-items:center;cursor:pointer}
.checks label.off{opacity:.45;cursor:not-allowed}
.switch{display:flex;align-items:center;gap:10px;cursor:pointer}
.sub{margin:10px 0 0 4px;padding-left:14px;border-left:3px solid var(--line)}
.dest{display:flex;gap:12px;align-items:center;background:#eef2ff;border-radius:12px;padding:12px;color:#0f172a}
.dest .meta{color:#4b5563}
.decl{font-size:14px;color:var(--muted);margin:6px 0 14px}
.missing{font-size:14px;color:var(--warn);margin-top:8px}
.stepper{list-style:none;padding:0;margin:0}
.stepper li{display:flex;gap:12px;align-items:center;padding:10px 0}
.dot{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:13px;border:2px solid var(--line);flex:none}
.dot.done{background:var(--ok);border-color:var(--ok);color:#fff}.dot.now{border-color:var(--indigo);color:var(--indigo)}
.screen{display:none}.screen.on{display:block}
[hidden]{display:none !important}

/* app real */
.nav{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.nav a{color:var(--ink);text-decoration:none;padding:8px 12px;border-radius:999px;font-weight:500}
.nav a[aria-current="page"]{background:var(--ink);color:var(--card)}
.avatar{overflow:hidden;display:grid;place-items:center;color:#fff;font-weight:700}
.avatar img{width:100%;height:100%;object-fit:cover}
.link-btn{background:none;border:0;padding:8px 6px;color:var(--muted);cursor:pointer;text-decoration:underline}
.mt8{margin-top:8px}.mt12{margin-top:12px}.mt14{margin-top:14px}.mb16{margin-bottom:16px}.m0{margin:0}
.narrow{max-width:640px}
.tt-btn{text-decoration:none}
.preview video{width:100%;height:100%;object-fit:contain;background:#000;border-radius:16px}
.preview.has-video{padding:0;background:#000}
@media (max-width:760px){.preview.has-video{aspect-ratio:9/16;max-height:60vh}}
.progress{height:10px;border-radius:999px;background:var(--line);overflow:hidden;margin-top:8px}
.progress>span{display:block;height:100%;width:0;background:var(--indigo);transition:width .2s}
.note.ok{background:var(--ok-bg);color:var(--ok)}
.empty{padding:28px 8px;text-align:center;color:var(--muted)}
.skeleton{color:var(--muted);padding:24px 0}
.act{display:flex;gap:8px;flex-wrap:wrap;align-items:center;justify-content:flex-end}
.act .btn{padding:8px 12px;min-height:40px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
input[type=file]{display:none}

@media (max-width:760px){.nav{order:3;width:100%;margin:0 -4px}.nav a{padding:8px 10px;font-size:15px}.chip strong{max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}
.brand{color:var(--ink);text-decoration:none}
a.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}
a.btn.ghost{color:var(--ink)}
a.btn:not(.ghost){color:#fff}
@media (max-width:480px){.chip strong{display:none}}