/* CreaYGana — zona de miembros. Misma paleta que la landing. */
:root{
  --ink:#0a1630; --ink-2:#14254a; --paper:#f0f2f5; --paper-2:#e4e9f2; --card:#fff;
  --line:#d5dbe5; --muted:#5b6475; --accent:#1877f2; --accent-ink:#0b5ccc; --accent-soft:#e7f0fe;
  --sky:#8cbcff; --on-dark:#f5f8ff; --on-dark-muted:#a9b8d3; --on-dark-line:#263a63;
  --ok:#1f8a4c; --ok-soft:#dff3e6;
  --font-display:"Bricolage Grotesque","Figtree",ui-sans-serif,system-ui,sans-serif;
  --font-body:"Figtree",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --radius:16px; --shadow:0 1px 2px rgba(10,22,48,.04),0 6px 20px rgba(10,22,48,.06); --maxw:1120px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font-body);background:var(--paper);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none}
.muted{color:var(--muted)}
h1,h2,h3{font-family:var(--font-display);letter-spacing:-.02em}

/* Topbar oscura (como la landing) */
.topbar{position:sticky;top:0;z-index:20;background:var(--ink);color:var(--on-dark);border-bottom:1px solid var(--on-dark-line)}
.topbar-inner{max-width:var(--maxw);margin:0 auto;height:64px;display:flex;align-items:center;gap:26px;padding:0 20px}
.brand{font-family:var(--font-display);font-weight:800;font-size:1.25rem;letter-spacing:-.03em;color:var(--on-dark)}
.brand .y{color:var(--sky)}
.topnav{display:flex;gap:20px}
.topnav a{font-weight:600;font-size:.95rem;color:var(--on-dark);padding:21px 2px;border-bottom:2px solid transparent;opacity:.85}
.topnav a.active{border-color:var(--sky);opacity:1}
.topnav a.muted{color:var(--on-dark-muted);font-weight:500}
.topright{margin-left:auto}
.btn-entrar{box-shadow:inset 0 0 0 1.5px var(--on-dark);color:var(--on-dark);padding:8px 16px;border-radius:999px;font-weight:700;font-size:.9rem}
.btn-entrar:hover{background:var(--on-dark);color:var(--ink)}

/* Layout */
main{width:100%;max-width:var(--maxw);margin:0 auto;padding:32px 20px 64px;flex:1}
.loading{padding:60px;text-align:center;color:var(--muted)}
h1.page-title{font-size:2rem;font-weight:800;margin:4px 0 20px}

/* Rejilla de cursos */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.course-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;cursor:pointer;transition:transform .15s,box-shadow .15s}
.course-card:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(10,22,48,.12)}
.course-cover{height:118px;position:relative;background:var(--ink)}
.course-cover.c0{background:linear-gradient(135deg,#1877f2,#0b5ccc)}
.course-cover.c1{background:linear-gradient(135deg,#16a34a,#0b7a43)}
.course-cover.c2{background:linear-gradient(135deg,#7c3aed,#4c1d95)}
.course-cover.c3{background:linear-gradient(135deg,#f59e0b,#c26d00)}
.course-cover.c4{background:linear-gradient(135deg,#14254a,#0a1630)}
.course-cover span{position:absolute;left:18px;bottom:14px;color:#fff;font-family:var(--font-display);font-weight:800;font-size:1.2rem;letter-spacing:-.02em}
.course-body{padding:16px 18px 18px}
.course-body h3{margin:0 0 6px;font-size:1.05rem}
.course-body p{margin:0 0 12px;color:var(--muted);font-size:.92rem;min-height:40px}
.meta-row{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:var(--muted)}

/* Progreso */
.bar{height:7px;background:var(--paper-2);border-radius:99px;overflow:hidden;margin:8px 0}
.bar > i{display:block;height:100%;background:var(--accent);border-radius:99px;transition:width .3s}

/* Página de curso */
.course-layout{display:grid;grid-template-columns:310px 1fr;gap:22px;align-items:start}
.sidebar{position:sticky;top:80px;max-height:calc(100vh - 100px);overflow:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:10px}
.sidebar .s-head{padding:10px 10px 6px}
.sidebar .s-head b{font-family:var(--font-display);font-size:1.05rem}
.mod{margin:6px 0}
.mod-title{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-ink);padding:12px 10px 4px}
.les{display:flex;gap:10px;align-items:flex-start;padding:9px 10px;border-radius:10px;cursor:pointer;font-size:.92rem}
.les:hover{background:var(--paper)}
.les.active{background:var(--accent-soft);color:var(--accent-ink);font-weight:600}
.les .tick{flex:0 0 18px;width:18px;height:18px;border-radius:50%;border:1.5px solid #c3cbd8;display:grid;place-items:center;font-size:11px;color:#fff;margin-top:2px}
.les.done .tick{background:var(--ok);border-color:var(--ok)}
.les .les-t{flex:1}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-weight:600;font-size:.92rem;margin-bottom:14px}
.back:hover{color:var(--accent-ink)}

/* Lección */
.lesson{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 34px}
.lesson .crumb{font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-ink);margin-bottom:8px}
.lesson h1{font-size:1.75rem;font-weight:800;line-height:1.15;margin:0 0 18px}
.lesson-body{font-size:1.02rem}
.lesson-body h4{font-family:var(--font-display);font-size:1.15rem;margin:24px 0 6px}
.lesson-body h5{font-size:.85rem;margin:16px 0 4px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.lesson-body p{margin:12px 0}
.lesson-body ul,.lesson-body ol{margin:12px 0;padding-left:22px}
.lesson-body li{margin:6px 0}
.lesson-body li.task{list-style:none;margin-left:-18px}
.lesson-body .cbox{color:var(--muted);margin-right:4px}
.lesson-body strong{font-weight:700}
.lesson-body code{background:var(--paper);padding:1px 6px;border-radius:6px;font-size:.88em}
.lesson-body blockquote{margin:16px 0;padding:12px 16px;border-left:3px solid var(--accent);background:var(--accent-soft);color:var(--ink-2);border-radius:0 10px 10px 0}
.lesson-body hr{border:none;border-top:1px solid var(--line);margin:20px 0}
.lesson-body table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.92rem}
.lesson-body th,.lesson-body td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.lesson-body thead th{background:var(--paper-2);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}

/* Media (vídeo/audio) */
.audio-box{margin:4px 0 22px;padding:14px 16px;background:var(--paper);border:1px solid var(--line);border-radius:14px}
.audio-box .lab{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-ink);margin-bottom:8px}
.audio-box audio{width:100%}
.audio-box video{width:100%;border-radius:10px;background:#000;display:block}
.audio-soon{font-size:.9rem;color:var(--muted)}

/* Recursos */
.resbox{margin-top:26px;padding:16px 18px;background:var(--accent-soft);border:1px solid #cfe0fb;border-radius:14px}
.resbox h4{margin:0 0 8px;font-size:.95rem;color:var(--accent-ink)}
.resbox ul{margin:0;padding-left:20px;font-size:.92rem;color:var(--ink-2)}

/* Pie de lección */
.lesson-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:28px;flex-wrap:wrap}
.btn{border:1px solid var(--line);background:#fff;padding:11px 18px;border-radius:999px;font:inherit;font-weight:700;font-size:.92rem;cursor:pointer;color:var(--ink)}
.btn:hover{background:var(--paper)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-ink)}
.btn.primary.done{background:var(--ok);border-color:var(--ok)}
.btn:disabled{opacity:.4;cursor:default}
.nav-pair{display:flex;gap:8px}

/* Footer */
.foot{background:var(--ink);color:var(--on-dark-muted);font-size:.88rem}
.foot div{max-width:var(--maxw);margin:0 auto;padding:18px 20px}

body{overflow-x:hidden}
.course-layout>*,.grid>*{min-width:0}
@media (max-width:820px){
  .course-layout{grid-template-columns:1fr}
  .sidebar{position:static;max-height:none}
  .topnav a.muted{display:none}
  .lesson{padding:22px 18px}
  .lesson h1{font-size:1.45rem}
}