/* ==========================================================================
   TechQuiz — Fundamentos de Informática y Redes
   Hoja de estilos principal
   ========================================================================== */

:root{
  --bg:#070b18;
  --bg-2:#0d1430;
  --card:rgba(255,255,255,.055);
  --card-strong:rgba(255,255,255,.09);
  --border:rgba(255,255,255,.12);
  --border-soft:rgba(255,255,255,.07);
  --text:#eef1ff;
  --muted:#9aa6cc;
  --brand:#7c5cff;
  --brand-soft:#a78bfa;
  --brand-2:#22d3ee;
  --brand-3:#5b8cff;          /* segundo tono del degradado de botones */
  --brand-hi:#8b6dff;         /* hover del botón principal */
  --brand-hi-2:#6f9bff;
  --glow:124,92,255;          /* canal RGB para sombras y realces */
  --glow-2:34,211,238;
  --glow-soft:167,139,250;
  --grad-title:linear-gradient(110deg,#a78bfa 0%,#22d3ee 48%,#f472b6 100%);
  --aurora-1:#1b2a6b; --aurora-2:#3b1d6e; --aurora-3:#08304d;
  --blob-1:#6d4bff; --blob-2:#12b8d8; --blob-3:#f0369b;
  --grid-op:.32;              /* intensidad de la rejilla de fondo */
  --green:#22c55e;
  --red:#f43f5e;
  --amber:#f59e0b;
  --blue:#3b82f6;
  --radius:20px;
  --radius-sm:12px;
  --shadow:0 18px 50px rgba(3,6,24,.55);
  --font:'Outfit','Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Consolas,monospace;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* ---------- Fondo animado (aurora) ---------- */
.aurora{position:fixed;inset:0;z-index:-2;overflow:hidden;background:
  radial-gradient(1200px 700px at 12% -10%, var(--aurora-1) 0%, transparent 60%),
  radial-gradient(900px 600px at 95% 0%, var(--aurora-2) 0%, transparent 55%),
  radial-gradient(1000px 800px at 50% 115%, var(--aurora-3) 0%, transparent 60%),
  linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 55%,var(--bg) 100%);}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.42;mix-blend-mode:screen;animation:float 22s ease-in-out infinite}
.blob.b1{width:520px;height:520px;background:var(--blob-1);top:-140px;left:-120px}
.blob.b2{width:460px;height:460px;background:var(--blob-2);bottom:-160px;right:-100px;animation-delay:-7s}
.blob.b3{width:380px;height:380px;background:var(--blob-3);top:38%;left:58%;animation-delay:-13s;opacity:.28}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(60px,-40px) scale(1.09)}
  66%{transform:translate(-45px,50px) scale(.94)}
}
.grid-lines{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:var(--grid-op);
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);}

/* ---------- Layout ---------- */
.app{min-height:100vh;display:flex;flex-direction:column}
.wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}
.screen{display:none;animation:fadeUp .45s cubic-bezier(.22,1,.36,1)}
.screen.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
main{flex:1;padding:24px 0 60px}

/* ---------- Topbar ---------- */
.topbar{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:linear-gradient(180deg,rgba(7,11,24,.82),rgba(7,11,24,.35));
  border-bottom:1px solid var(--border-soft)}
.topbar-in{display:flex;align-items:center;gap:14px;padding:12px 0}
.brand{display:flex;align-items:center;gap:11px;cursor:pointer;user-select:none;border:0;background:none;
  color:inherit;font-family:inherit;padding:0;text-decoration:none}
.brand-logo{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;font-size:20px;overflow:hidden;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 24px rgba(var(--glow),.5),0 0 0 1px rgba(var(--glow-2),.25) inset}
.brand-name{font-weight:800;font-size:20px;letter-spacing:-.4px;line-height:1}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;text-transform:uppercase}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:8px;min-width:0}
.top-actions .lbl{margin-left:2px}
#btnAudio{gap:7px}

/* ---------- Botones ---------- */
.btn{font-family:inherit;font-size:15px;font-weight:600;color:var(--text);cursor:pointer;
  border:1px solid var(--border);background:var(--card);padding:11px 18px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;transition:.18s ease;white-space:nowrap}
.btn:hover{background:var(--card-strong);transform:translateY(-2px);border-color:rgba(255,255,255,.22)}
.btn:active{transform:translateY(0)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-3));border-color:transparent;
  box-shadow:0 12px 30px rgba(var(--glow),.38)}
.btn-primary:hover{box-shadow:0 16px 38px rgba(var(--glow),.5);background:linear-gradient(135deg,var(--brand-hi),var(--brand-hi-2))}
.btn-ghost{background:transparent}
.btn-danger{border-color:rgba(244,63,94,.4);color:#ffc9d3;background:rgba(244,63,94,.12)}
.btn-danger:hover{background:rgba(244,63,94,.2)}
.btn-lg{font-size:17px;padding:16px 30px;border-radius:17px}
.btn-sm{font-size:13px;padding:8px 13px;border-radius:11px}
.btn-icon{width:42px;height:42px;padding:0;border-radius:13px;font-size:17px}
.btn[disabled]{opacity:.45;pointer-events:none}

/* ---------- Tarjetas ---------- */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);backdrop-filter:blur(12px)}
.card-pad-lg{padding:30px}

/* ---------- Home / Hero ---------- */
.hero{text-align:center;padding:52px 0 26px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#cdd6ff;
  border:1px solid var(--border);background:var(--card);padding:7px 15px;border-radius:999px;margin-bottom:22px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.35}}
.hero h1{font-size:clamp(40px,7.4vw,74px);line-height:1.02;margin:0 0 16px;letter-spacing:-2.4px;font-weight:800;text-wrap:balance}
.grad{background:var(--grad-title);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);font-size:clamp(16px,2.2vw,19px);max-width:620px;margin:0 auto 32px;line-height:1.6}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:40px 0 10px}
.stat{background:var(--card);border:1px solid var(--border-soft);border-radius:16px;padding:18px;text-align:center}
.stat b{display:block;font-size:30px;font-weight:800;letter-spacing:-1px}
.stat span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em}

.section-title{display:flex;align-items:center;gap:12px;margin:46px 0 18px}
.section-title h2{font-size:24px;margin:0;letter-spacing:-.6px}
.section-title .line{flex:1;height:1px;background:linear-gradient(90deg,var(--border),transparent)}

/* ---------- Grid de cursos ---------- */
.courses{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.course-card{position:relative;text-align:left;cursor:pointer;border:1px solid var(--border);
  background:var(--card);border-radius:18px;padding:20px;transition:.2s ease;overflow:hidden;color:inherit;font-family:inherit}
.course-card::after{content:'';position:absolute;inset:0;opacity:0;transition:.25s;
  background:radial-gradient(420px 180px at 20% 0%,rgba(var(--glow),.22),transparent 70%)}
.course-card:hover{transform:translateY(-4px);border-color:rgba(var(--glow-soft),.55);
  box-shadow:0 12px 34px rgba(var(--glow),.22)}
.course-card:hover::after{opacity:1}
.course-card>*{position:relative;z-index:1}
.course-emoji{font-size:32px;margin-bottom:12px;display:block}
.course-card h3{margin:0 0 6px;font-size:18px;letter-spacing:-.3px}
.course-card p{margin:0 0 14px;color:var(--muted);font-size:13.5px;line-height:1.5;min-height:40px}
.course-meta{display:flex;gap:8px;flex-wrap:wrap}
.chip{font-size:11.5px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.07);
  border:1px solid var(--border-soft);color:#c9d2f5}
.chip-own{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.35);color:#8ff0b5}

/* ---------- Setup ---------- */
.setup-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:20px;align-items:start}
.field{margin-bottom:22px}
.field>label{display:block;font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:10px}
.pills{display:flex;gap:9px;flex-wrap:wrap}
.pill{cursor:pointer;user-select:none;font-size:14px;padding:9px 15px;border-radius:12px;
  border:1px solid var(--border);background:rgba(255,255,255,.04);transition:.16s;display:inline-flex;align-items:center;gap:7px}
.pill:hover{background:rgba(255,255,255,.09)}
.pill.on{background:linear-gradient(135deg,rgba(var(--glow),.35),rgba(var(--glow-2),.22));
  border-color:rgba(var(--glow-soft),.6);box-shadow:0 6px 18px rgba(var(--glow),.22)}
.pill input{display:none}
.pill .cnt{font-size:11px;color:var(--muted)}

input[type=text],input[type=number],select,textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--text);background:rgba(255,255,255,.05);
  border:1px solid var(--border);border-radius:13px;padding:12px 14px;transition:.16s}
input:focus,select:focus,textarea:focus{outline:0;border-color:rgba(var(--glow-soft),.65);background:rgba(255,255,255,.08)}
select option{background:#131a35;color:#fff}
textarea{resize:vertical;min-height:90px;line-height:1.5}
.range-row{display:flex;align-items:center;gap:14px}
input[type=range]{flex:1;accent-color:var(--brand)}
.range-val{min-width:78px;text-align:right;font-weight:700;font-variant-numeric:tabular-nums}

.mode-list{display:flex;flex-direction:column;gap:10px}
.mode{cursor:pointer;display:flex;gap:13px;align-items:flex-start;padding:14px;border-radius:15px;
  border:1px solid var(--border);background:rgba(255,255,255,.035);transition:.16s}
.mode:hover{background:rgba(255,255,255,.07)}
.mode.on{border-color:rgba(var(--glow-soft),.6);background:linear-gradient(135deg,rgba(var(--glow),.22),rgba(var(--glow-2),.12))}
.mode input{display:none}
.mode .ico{font-size:22px;line-height:1}
.mode b{display:block;font-size:15px;margin-bottom:3px}
.mode small{color:var(--muted);font-size:12.5px;line-height:1.45;display:block}

.summary-line{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--border-soft);font-size:14px}
.summary-line:last-of-type{border-bottom:0}
.summary-line span{color:var(--muted)}
.summary-line b{font-weight:700}

/* ---------- Pantalla de juego ---------- */
.play-head{display:flex;align-items:center;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.qcount{font-size:14px;color:var(--muted)}
.qcount b{color:var(--text);font-size:17px}
.play-score{margin-left:auto;display:flex;gap:10px;align-items:center}
.score-pill{background:var(--card);border:1px solid var(--border);border-radius:13px;padding:8px 14px;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums}
.score-pill small{color:var(--muted);font-weight:500;font-size:12px;margin-right:6px}
.streak{background:linear-gradient(135deg,rgba(245,158,11,.28),rgba(244,63,94,.2));border-color:rgba(245,158,11,.5);
  box-shadow:0 0 16px rgba(245,158,11,.28)}

.progress{height:6px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden;margin-bottom:26px}
.progress i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(var(--glow),.65);transition:width .4s cubic-bezier(.22,1,.36,1)}

.q-area{display:grid;grid-template-columns:118px 1fr;gap:24px;align-items:center;margin-bottom:26px}
.timer{position:relative;width:118px;height:118px}
.timer svg{transform:rotate(-90deg);width:100%;height:100%}
.timer circle{fill:none;stroke-width:9;stroke-linecap:round}
.timer .bgc{stroke:rgba(255,255,255,.09)}
.timer .fgc{stroke:var(--brand-2);transition:stroke-dashoffset 1s linear,stroke .3s;
  filter:drop-shadow(0 0 7px rgba(var(--glow-2),.6))}
.timer .num{position:absolute;inset:0;display:grid;place-items:center;font-size:33px;font-weight:800;font-variant-numeric:tabular-nums}
.timer.warn .fgc{stroke:var(--amber)}
.timer.warn .num{color:var(--amber)}
.timer.danger .fgc{stroke:var(--red)}
.timer.danger .num{color:var(--red);animation:beat .6s infinite}
@keyframes beat{50%{transform:scale(1.14)}}
.timer.hidden{display:none}
.q-area.no-timer{grid-template-columns:1fr}

.q-text{font-size:clamp(21px,3.2vw,31px);font-weight:700;line-height:1.28;letter-spacing:-.6px;margin:0}
.q-cat{display:inline-flex;gap:8px;align-items:center;margin-bottom:12px}

.answers{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ans{position:relative;cursor:pointer;text-align:left;font-family:inherit;font-size:16.5px;font-weight:600;color:#fff;
  border:0;border-radius:17px;padding:20px 20px 20px 62px;min-height:88px;display:flex;align-items:center;
  transition:.16s ease;box-shadow:0 10px 26px rgba(0,0,0,.28);line-height:1.35}
.ans::before{content:attr(data-shape);position:absolute;left:20px;top:50%;transform:translateY(-50%);
  font-size:21px;opacity:.95}
.ans:hover:not(.locked){transform:translateY(-3px) scale(1.012);filter:brightness(1.12)}
.ans.a0{background:linear-gradient(135deg,#e11d48,#be123c)}
.ans.a1{background:linear-gradient(135deg,#2563eb,#1d4ed8)}
.ans.a2{background:linear-gradient(135deg,#d97706,#b45309)}
.ans.a3{background:linear-gradient(135deg,#16a34a,#15803d)}
.ans.locked{cursor:default}
.ans.dim{opacity:.26;filter:grayscale(.65)}
.ans.right{outline:3px solid #86efac;outline-offset:3px;animation:pop .45s ease}
.ans.chosen{outline:3px solid rgba(255,255,255,.85);outline-offset:3px;animation:pop .35s ease}
.ans.wrong{outline:3px solid #fda4af;outline-offset:3px;animation:shake .45s ease}
@keyframes pop{0%{transform:scale(1)}45%{transform:scale(1.05)}100%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}22%{transform:translateX(-9px)}55%{transform:translateX(9px)}80%{transform:translateX(-4px)}}

/* Feedback */
.feedback{margin-top:20px;border-radius:18px;padding:20px 22px;border:1px solid var(--border);
  background:var(--card);display:none;animation:fadeUp .3s ease}
.feedback.show{display:block}
.feedback.ok{border-color:rgba(34,197,94,.45);background:linear-gradient(135deg,rgba(34,197,94,.16),rgba(34,197,94,.05))}
.feedback.ko{border-color:rgba(244,63,94,.45);background:linear-gradient(135deg,rgba(244,63,94,.16),rgba(244,63,94,.05))}
.feedback h4{margin:0 0 8px;font-size:19px;display:flex;align-items:center;gap:9px}
.feedback p{margin:0;color:#d5dcf7;line-height:1.6;font-size:15px}
.feedback .next-row{margin-top:16px;display:flex;justify-content:flex-end}

/* ---------- Resultados ---------- */
.result-top{text-align:center;padding:16px 0 30px}
.result-ring{width:200px;height:200px;margin:0 auto 20px;position:relative}
.result-ring svg{transform:rotate(-90deg);width:100%;height:100%}
.result-ring circle{fill:none;stroke-width:14;stroke-linecap:round}
.result-ring .bgc{stroke:rgba(255,255,255,.08)}
.result-ring .fgc{stroke:url(#gradring);transition:stroke-dashoffset 1.2s cubic-bezier(.22,1,.36,1);
  filter:drop-shadow(0 0 10px rgba(var(--glow),.5))}
.result-ring .mid{position:absolute;inset:0;display:grid;place-content:center;text-align:center}
.result-ring .pct{font-size:44px;font-weight:800;letter-spacing:-2px;line-height:1}
.result-ring .frac{font-size:13px;color:var(--muted);margin-top:4px}
.verdict{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;padding:10px 22px;border-radius:999px;
  border:1px solid var(--border);background:var(--card)}
.verdict.pass{border-color:rgba(34,197,94,.5);background:rgba(34,197,94,.14);color:#93f5b9}
.verdict.fail{border-color:rgba(244,63,94,.5);background:rgba(244,63,94,.14);color:#ffb4c1}

.bars{display:flex;flex-direction:column;gap:14px}
.bar-row .bl{display:flex;justify-content:space-between;font-size:14px;margin-bottom:6px}
.bar-row .bl b{font-variant-numeric:tabular-nums}
.bar-track{height:10px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}
.bar-track i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 10px rgba(var(--glow),.5);transition:width 1s cubic-bezier(.22,1,.36,1)}
.bar-track i.low{background:linear-gradient(90deg,#f43f5e,#f59e0b)}
.bar-track i.mid{background:linear-gradient(90deg,#f59e0b,#facc15)}

.advice{border-left:3px solid var(--amber);background:rgba(245,158,11,.1);border-radius:0 14px 14px 0;padding:16px 18px}
.advice h4{margin:0 0 10px;font-size:15px;color:#fcd9a0}
.advice ul{margin:0;padding-left:20px;color:#e6ebff;line-height:1.75;font-size:14.5px}

.review{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.rev-item{border:1px solid var(--border-soft);border-radius:15px;padding:16px;background:rgba(255,255,255,.035)}
.rev-item .rq{font-weight:650;margin:0 0 10px;line-height:1.45}
.rev-line{font-size:14px;margin:4px 0;display:flex;gap:8px}
.rev-line .tag{flex:none;width:76px;color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.06em;padding-top:2px}
.rev-ok{color:#8ff0b5}
.rev-ko{color:#ffb4c1;text-decoration:line-through;text-decoration-color:rgba(244,63,94,.6)}
.rev-exp{margin-top:10px;font-size:14px;color:#c3cdf0;line-height:1.6;border-top:1px dashed var(--border-soft);padding-top:10px}
.results-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}

/* ---------- Editor ---------- */
.editor-grid{display:grid;grid-template-columns:300px 1fr;gap:20px;align-items:start}
.ed-list{display:flex;flex-direction:column;gap:8px;max-height:64vh;overflow:auto;padding-right:6px}
.ed-item{cursor:pointer;border:1px solid var(--border-soft);background:rgba(255,255,255,.035);border-radius:13px;
  padding:11px 13px;font-size:14px;transition:.15s;text-align:left;font-family:inherit;color:inherit;line-height:1.4}
.ed-item:hover{background:rgba(255,255,255,.08)}
.ed-item.on{border-color:rgba(var(--glow-soft),.6);background:rgba(var(--glow),.16)}
.ed-item small{display:block;color:var(--muted);font-size:11.5px;margin-top:3px}
.opt-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.opt-row .mark{flex:none;width:38px;height:38px;border-radius:11px;border:1px solid var(--border);
  display:grid;place-items:center;cursor:pointer;font-size:15px;background:rgba(255,255,255,.04);transition:.15s}
.opt-row .mark.on{background:rgba(34,197,94,.25);border-color:rgba(34,197,94,.6)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ed-toolbar{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:16px}

/* ---------- Historial ---------- */
.table{width:100%;border-collapse:collapse;font-size:14.5px}
.table th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);
  padding:10px 12px;border-bottom:1px solid var(--border)}
.table td{padding:12px;border-bottom:1px solid var(--border-soft)}
.table tr:last-child td{border-bottom:0}
.badge{font-size:12px;padding:3px 9px;border-radius:999px;font-weight:600}
.badge.ok{background:rgba(34,197,94,.16);color:#8ff0b5}
.badge.ko{background:rgba(244,63,94,.16);color:#ffb4c1}

/* ---------- Audio / control de sonido ---------- */
.audio-panel{position:absolute;right:0;top:54px;width:262px;background:rgba(13,20,48,.97);border:1px solid var(--border);
  border-radius:17px;padding:17px;box-shadow:var(--shadow);display:none;z-index:60;backdrop-filter:blur(16px)}
.audio-panel.show{display:block;animation:fadeUp .22s ease}
.audio-panel h4{margin:0 0 14px;font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.audio-row{margin-bottom:14px}
.audio-row label{display:flex;justify-content:space-between;font-size:13px;margin-bottom:7px}
.audio-row label b{color:var(--muted);font-weight:600;font-variant-numeric:tabular-nums}
.switch{display:flex;align-items:center;justify-content:space-between;font-size:14px;padding:8px 0}
.sw{position:relative;width:44px;height:25px;border-radius:99px;background:rgba(255,255,255,.14);cursor:pointer;transition:.2s;flex:none}
.sw::after{content:'';position:absolute;top:3px;left:3px;width:19px;height:19px;border-radius:50%;background:#fff;transition:.2s}
.sw.on{background:linear-gradient(135deg,var(--brand),var(--brand-2))}
.sw.on::after{transform:translateX(19px)}
.eq{display:inline-flex;gap:2px;align-items:flex-end;height:14px}
.eq i{width:3px;background:var(--brand-2);border-radius:2px;height:4px;animation:eqb .9s ease-in-out infinite}
.eq i:nth-child(2){animation-delay:.15s}.eq i:nth-child(3){animation-delay:.3s}.eq i:nth-child(4){animation-delay:.45s}
.eq.off i{animation:none;height:3px;background:var(--muted)}
@keyframes eqb{0%,100%{height:4px}50%{height:14px}}

/* ---------- Toast ---------- */
.toasts{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;gap:10px;z-index:200;align-items:center}
.toast{background:rgba(13,20,48,.97);border:1px solid var(--border);border-radius:14px;padding:12px 20px;
  font-size:14.5px;box-shadow:var(--shadow);animation:fadeUp .25s ease;backdrop-filter:blur(10px)}
.toast.ok{border-color:rgba(34,197,94,.5)}
.toast.ko{border-color:rgba(244,63,94,.5)}

/* ---------- Confeti ---------- */
.confetti{position:fixed;inset:0;pointer-events:none;z-index:150;overflow:hidden}
.confetti i{position:absolute;width:9px;height:14px;opacity:.95;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(760deg);opacity:0}}

/* ---------- Varios ---------- */
.muted{color:var(--muted)}
.center{text-align:center}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.spread{justify-content:space-between}
.mt-0{margin-top:0}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.mb-0{margin-bottom:0}.mb-16{margin-bottom:16px}
.empty{text-align:center;padding:44px 20px;color:var(--muted)}
.empty .big{font-size:42px;margin-bottom:12px}
.kbd{font-family:var(--mono);font-size:12px;background:rgba(255,255,255,.08);border:1px solid var(--border);
  border-bottom-width:2px;border-radius:7px;padding:2px 7px}
footer{border-top:1px solid var(--border-soft);padding:22px 0;color:var(--muted);font-size:13px}
.hidden{display:none !important}

/* Scrollbar */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.13);border-radius:9px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.22);background-clip:padding-box}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .setup-grid,.editor-grid{grid-template-columns:1fr}
  .ed-list{max-height:280px}
}
@media (max-width:640px){
  .wrap{width:calc(100% - 28px)}
  .top-actions .lbl{display:none}
  #btnAudio .eq{display:none}
  .top-actions .btn{padding:9px 12px;font-size:15px;gap:0}
  .topbar-in{gap:8px}
  .brand-logo{width:36px;height:36px;font-size:18px}
  .brand-name{font-size:18px}
  .hero-cta .btn{width:100%}
  .answers{grid-template-columns:1fr}
  .ans{min-height:70px;font-size:15.5px;padding:15px 15px 15px 54px}
  .q-area{grid-template-columns:1fr;gap:14px}
  .timer{width:84px;height:84px}
  .timer .num{font-size:25px}
  .two-col{grid-template-columns:1fr}
  .brand-sub{display:none}
  .hero{padding:32px 0 18px}
  .audio-panel{width:calc(100vw - 32px);right:-6px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.01ms !important}
}

/* ==========================================================================
   Portada del área de Formación
   ========================================================================== */
footer a,.volver-sitio{color:inherit;text-decoration:none}
footer a:hover,.volver-sitio:hover{color:var(--brand-soft)}
.nav-actual{padding:8px 14px;background:rgba(var(--glow),.16);border-color:rgba(var(--glow-soft),.4);color:#dce8ff}
a.btn{text-decoration:none}
a.course-card{text-decoration:none;display:block}
.fx-intro{margin:-6px 0 18px;font-size:14.5px;max-width:62ch}
.fx-entrar{display:block;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--brand-soft);
  opacity:.75;transition:.18s}
.course-card:hover .fx-entrar{opacity:1;transform:translateX(3px)}

/* --- Módulo destacado --- */
.fx-destacado{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center;
  background:linear-gradient(135deg,rgba(var(--glow),.16),rgba(var(--glow-2),.07));
  border:1px solid rgba(var(--glow-soft),.32);border-radius:24px;padding:30px;
  box-shadow:0 20px 60px rgba(var(--glow),.16)}
.fx-destacado h3{margin:12px 0 10px;font-size:30px;letter-spacing:-1px}
.fx-destacado>div>p{margin:0 0 20px;color:#cddcf5;line-height:1.65;font-size:15.5px;max-width:56ch}
.fx-modos{list-style:none;margin:0 0 24px;padding:0;display:flex;flex-direction:column;gap:11px}
.fx-modos li{display:flex;gap:12px;align-items:baseline;font-size:14.5px;line-height:1.5}
.fx-modos b{flex:none;width:118px;font-weight:650}
.fx-modos span{color:var(--muted)}

/* Vista en miniatura de una pregunta real */
.fx-mini{background:rgba(5,10,24,.72);border:1px solid var(--border);border-radius:18px;padding:18px;
  box-shadow:var(--shadow)}
.fx-mini-top{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);
  margin-bottom:12px;font-variant-numeric:tabular-nums}
.fx-t{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-weight:700;color:var(--brand-2);
  border:2px solid var(--brand-2);box-shadow:0 0 10px rgba(var(--glow-2),.45);font-size:13px}
.fx-q{margin:0 0 14px;font-size:16px;font-weight:650;line-height:1.35}
.fx-op{border-radius:11px;padding:10px 13px;font-size:13.5px;font-weight:600;color:#fff;margin-bottom:8px}
.fx-op.a0{background:linear-gradient(135deg,#e11d48,#be123c)}
.fx-op.a1{background:linear-gradient(135deg,#2563eb,#1d4ed8)}
.fx-op.a2{background:linear-gradient(135deg,#d97706,#b45309)}
.fx-op.a3{background:linear-gradient(135deg,#16a34a,#15803d)}
.fx-op.ok{outline:2px solid #86efac;outline-offset:2px}
.fx-mini-pie{margin-top:12px;font-size:12px;color:var(--muted);text-align:center}

/* --- Metodología --- */
.fx-metodo{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.fx-paso{border-left:2px solid rgba(var(--glow-soft),.45);padding:4px 0 4px 18px}
.fx-num{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:9px;font-size:13px;font-weight:700;
  background:rgba(var(--glow),.22);border:1px solid rgba(var(--glow-soft),.4);color:#dbe8ff;margin-bottom:10px}
.fx-paso h4{margin:0 0 7px;font-size:16.5px;letter-spacing:-.3px}
.fx-paso p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}

/* --- Cierre --- */
.fx-cierre{text-align:center;margin:56px 0 10px;padding:38px 24px;border-radius:24px;
  background:radial-gradient(600px 220px at 50% 0%,rgba(var(--glow),.18),transparent 70%);
  border:1px solid var(--border-soft)}
.fx-cierre h3{margin:0 0 8px;font-size:27px;letter-spacing:-.8px}
.fx-cierre p{margin:0 0 22px}

@media (max-width:860px){
  .fx-destacado{grid-template-columns:1fr;padding:24px}
  .fx-destacado-vis{order:-1}
}
@media (max-width:520px){
  .fx-modos li{flex-direction:column;gap:2px}
  .fx-modos b{width:auto}
}