:root{
  --purple:#8c7ae6; --purple-dark:#7158d6;
  --pink:#e056fd; --blue:#54a0ff; --green:#00b894;
  --yellow:#feca57; --red:#ff6b6b; --ink:#2d2d44;
  --card:#ffffff; --soft:#f2f2f8;
  --font: system-ui,-apple-system,"Segoe UI",Roboto,"Comic Sans MS","Baloo",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);color:var(--ink);min-height:100vh}

.bg-login{background:linear-gradient(135deg,#7ed6df,#e056fd 90%)}
.bg-home{background:linear-gradient(135deg,#a29bfe,#74b9ff 90%)}
.bg-parents{background:#f5f6fb}

/* ---------- Barra superior ---------- */
.topbar{display:flex;justify-content:space-between;align-items:center;
  padding:14px 22px;background:rgba(255,255,255,.9);backdrop-filter:blur(6px);
  box-shadow:0 2px 12px rgba(0,0,0,.08);flex-wrap:wrap;gap:8px}
.topbar .brand{font-weight:800;font-size:1.15rem}
.topbar nav a{margin-left:14px;text-decoration:none;color:var(--purple-dark);font-weight:700}
.topbar nav a:hover{text-decoration:underline}

/* ---------- Login ---------- */
.login-card{max-width:400px;margin:8vh auto;background:#fff;border-radius:24px;
  padding:34px 30px;box-shadow:0 16px 50px rgba(0,0,0,.22);text-align:center}
.login-emoji{font-size:2.6rem}
.login-card h1{margin:.3em 0 0;font-size:1.7rem}
.subtitle{color:#888;margin-top:.2em}
.login-card form{text-align:left;margin-top:18px}
label{display:block;font-weight:700;margin:12px 0 5px;font-size:.92rem}
input{width:100%;padding:12px;border:2px solid #e2e2ee;border-radius:12px;font-size:1rem;font-family:inherit}
input:focus{outline:none;border-color:var(--purple)}
button{margin-top:20px;width:100%;padding:14px;border:none;border-radius:14px;
  background:var(--purple);color:#fff;font-size:1.1rem;font-weight:800;cursor:pointer;font-family:inherit}
button:hover{background:var(--purple-dark)}
.switch{text-align:center;margin-top:16px;color:#777}
.switch a{color:var(--purple-dark);font-weight:700;text-decoration:none}
.alert{padding:11px 14px;border-radius:10px;margin:6px 0;font-size:.95rem}
.alert.error{background:#ffe3e3;color:#b02020}
.alert.good{background:#e3ffe9;color:#1a7a3f}

/* ---------- Hub / menú ---------- */
.hub{max-width:900px;margin:0 auto;padding:26px 18px}
.panel{background:#fff;border-radius:22px;padding:26px 28px;box-shadow:0 10px 34px rgba(0,0,0,.14)}
.panel h1{margin-top:0}

.welcome{display:flex;align-items:center;gap:16px;background:#fff;border-radius:22px;
  padding:18px 22px;box-shadow:0 10px 30px rgba(0,0,0,.14);margin-bottom:22px;flex-wrap:wrap}
.welcome-avatar{font-size:3rem}
.welcome h1{margin:0;font-size:1.5rem}
.stars-line{margin:.2em 0 0;color:#666}
.mini-btn{margin-left:auto;background:var(--soft);padding:9px 14px;border-radius:12px;
  text-decoration:none;color:var(--ink);font-weight:700}

/* Tarjetas de niños */
.child-grid{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px}
.child-card{display:flex;flex-direction:column;align-items:center;justify-content:center;
  width:140px;min-height:150px;background:var(--soft);border-radius:20px;text-decoration:none;
  color:var(--ink);padding:16px;transition:transform .12s;box-shadow:0 4px 14px rgba(0,0,0,.08)}
.child-card:hover{transform:translateY(-4px) scale(1.03)}
.child-avatar{font-size:3rem}
.child-name{font-weight:800;margin-top:6px}
.child-stars{color:#e6a100;font-weight:700;margin-top:2px}
.child-card.add{cursor:pointer}
.child-card.add summary{list-style:none;display:flex;flex-direction:column;align-items:center;cursor:pointer}
.child-card.add[open]{width:100%;align-items:stretch}

/* Formulario de niño */
.child-form{margin-top:10px}
.avatar-pick{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.avatar-opt{cursor:pointer}
.avatar-opt input{display:none}
.avatar-opt span{display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;font-size:1.8rem;border:3px solid transparent;border-radius:14px;background:#fff}
.avatar-opt input:checked + span{border-color:var(--purple);background:#efeaff}

/* Actividades (menú principal) */
.activity-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.activity{display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:30px 16px;border-radius:24px;text-decoration:none;color:#fff;
  box-shadow:0 10px 28px rgba(0,0,0,.18);transition:transform .12s}
.activity:hover{transform:translateY(-5px) scale(1.03)}
.act-emoji{font-size:3.4rem}
.act-title{font-size:1.5rem;font-weight:900;margin-top:8px}
.act-sub{opacity:.92;font-weight:600}
.tile-mix{background:linear-gradient(135deg,#ff9a44,#ff5e7e)}
.tile-syl{background:linear-gradient(135deg,#a18cd1,#6c5ce7)}
.tile-read{background:linear-gradient(135deg,#ff9a9e,#f6416c)}
.tile-write{background:linear-gradient(135deg,#43e97b,#38a169)}
.tile-add{background:linear-gradient(135deg,#4facfe,#2b6cff)}
.tile-sub{background:linear-gradient(135deg,#feca57,#ff9f1a)}

/* ---------- Actividades (páginas) ---------- */
.play{max-width:820px;margin:0 auto;padding:20px 16px 60px;text-align:center}
.play-head{display:flex;align-items:center;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:8px}
.back{text-decoration:none;background:#fff;color:var(--ink);padding:10px 16px;border-radius:14px;font-weight:800;box-shadow:0 4px 12px rgba(0,0,0,.1)}
.badge-stars{background:#fff;padding:10px 16px;border-radius:14px;font-weight:800;box-shadow:0 4px 12px rgba(0,0,0,.1)}
.play h1{margin:8px 0}
.stage{background:#fff;border-radius:26px;padding:26px 22px;box-shadow:0 14px 40px rgba(0,0,0,.16);margin-top:12px}
.prompt{font-size:1.35rem;font-weight:800;margin:0 0 6px}
.speak-btn{display:inline-flex;align-items:center;gap:8px;background:var(--purple);color:#fff;
  border:none;padding:12px 20px;border-radius:16px;font-size:1.05rem;font-weight:800;cursor:pointer;margin:8px}
.speak-btn:hover{background:var(--purple-dark)}

.emoji-img{width:120px;height:120px;object-fit:contain;vertical-align:middle}
.emoji-fallback{font-size:6rem;line-height:1}
.big-letter{font-size:7rem;font-weight:900;color:var(--purple);line-height:1;margin:6px}

/* Opciones de respuesta */
.options{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:20px}
.opt{min-width:96px;padding:20px 24px;font-size:2rem;font-weight:900;border:none;border-radius:20px;
  background:var(--soft);color:var(--ink);cursor:pointer;box-shadow:0 6px 16px rgba(0,0,0,.1);transition:transform .1s}
.opt:hover{transform:scale(1.06)}
.opt.correct{background:#c8f7d4;color:#1a7a3f}
.opt.incorrect{background:#ffd6d6;color:#b02020}
.opt-letter{font-size:2.6rem}

/* Contadores visuales (mates) */
.counters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center;margin:10px 0}
.counters .emoji-img{width:56px;height:56px}
.counters .emoji-fallback{font-size:2.6rem}
.math-eq{font-size:2.6rem;font-weight:900;margin:0 8px}
.op-plus{color:var(--blue)} .op-minus{color:var(--yellow)}

/* Lienzo de trazos */
.trace-wrap{position:relative;display:inline-block;margin-top:10px;
  background:#fff;border:4px dashed #d7d7ec;border-radius:20px;overflow:hidden}
.ghost-letter{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;
  font-size:16rem;font-weight:900;color:#eceaf7;pointer-events:none;user-select:none}
#trace-canvas{position:relative;z-index:2;display:block;background:transparent;
  border-radius:20px;touch-action:none;cursor:crosshair}
.tool-row{margin-top:14px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.tool-btn{background:#fff;border:2px solid #e2e2ee;border-radius:14px;padding:11px 18px;font-weight:800;cursor:pointer;font-family:inherit}
.tool-btn.primary{background:var(--green);color:#fff;border-color:var(--green)}

.feedback{min-height:34px;font-size:1.4rem;font-weight:900;margin-top:14px}
.feedback.ok{color:var(--green)} .feedback.no{color:var(--red)}

/* Modo escribir la respuesta */
.answer-form{display:flex;gap:10px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:20px}
.answer-input{width:150px;text-align:center;font-size:2.4rem;font-weight:900;padding:12px;
  border:3px solid #dcdce6;border-radius:16px;text-transform:uppercase;color:var(--ink)}
.answer-input:focus{outline:none;border-color:var(--purple);box-shadow:0 0 0 4px #efeaff}
.answer-submit{width:auto;margin-top:0;padding:14px 22px;background:var(--green);border-radius:16px}
.answer-submit:hover{background:#00997a}
.wrong-list{min-height:22px;margin-top:12px;color:var(--red);font-weight:700}
.wrong-list s{margin:0 4px;opacity:.85}

/* Selector de modo de respuesta (zona de padres) */
.mode-pick{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.mode-opt{display:flex;gap:10px;align-items:flex-start;background:var(--soft);
  border:2px solid transparent;border-radius:14px;padding:12px 14px;cursor:pointer}
.mode-opt input{margin-top:4px}
.mode-opt input:checked + span{color:var(--ink)}
.mode-opt:has(input:checked){border-color:var(--purple);background:#efeaff}

/* ---------- Zona de padres ---------- */
.parents{max-width:960px;margin:0 auto;padding:26px 18px}
.parents h1{margin-bottom:2px}
.muted{color:#888;margin-top:0}
.report{background:#fff;border-radius:20px;padding:22px;margin:18px 0;box-shadow:0 8px 26px rgba(0,0,0,.08)}
.report-head{display:flex;align-items:center;gap:14px}
.report-avatar{font-size:2.6rem}
.report-head h2{margin:0}
.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:18px}
.stat-card{background:var(--soft);border-radius:16px;padding:16px;text-align:center}
.stat-title{font-weight:800;font-size:.95rem}
.stat-big{font-size:2.2rem;font-weight:900;color:var(--purple)}
.stat-sub{color:#888;font-size:.82rem;margin-top:-4px}
.bar{height:9px;background:#e2e2ee;border-radius:6px;overflow:hidden;margin:10px 0 4px}
.bar span{display:block;height:100%;background:var(--green)}
.stat-pct{font-size:.85rem;color:#555}
.recent{margin-top:16px}
.recent summary{cursor:pointer;font-weight:800;color:var(--purple-dark)}
.recent ul{list-style:none;padding:0;margin:10px 0 0}
.recent li{padding:7px 0;border-bottom:1px solid #eee;font-size:.95rem}
.recent .when{color:#aaa;font-size:.82rem;margin-left:6px}
.btn{display:inline-block;background:var(--green);color:#fff;padding:12px 20px;border-radius:14px;text-decoration:none;font-weight:800;margin-top:10px}

/* ---------- Vocales y sílabas ---------- */
.tabs{display:flex;gap:10px;justify-content:center;margin-bottom:14px;flex-wrap:wrap}
.tab{background:var(--soft);border:none;border-radius:14px;padding:11px 20px;font-weight:800;
  font-size:1.05rem;cursor:pointer;font-family:inherit;color:var(--ink);margin:0;width:auto}
.tab.active{background:var(--purple);color:#fff}
.sec{animation:fadein .2s}
@keyframes fadein{from{opacity:.3}to{opacity:1}}

.syl-grid{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin:16px 0}
.syl-card{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;
  width:118px;min-height:150px;background:#fff;border:3px solid #ece9fb;border-radius:20px;
  padding:12px 8px;cursor:pointer;font-family:inherit;box-shadow:0 6px 16px rgba(0,0,0,.08);transition:transform .1s}
.syl-card:hover{transform:translateY(-4px) scale(1.04);border-color:var(--purple)}
.syl-big{font-size:2.6rem;font-weight:900;color:var(--purple);line-height:1}
.syl-pic{width:52px;height:52px;object-fit:contain;margin:6px 0}
.emoji-fallback.syl-pic{font-size:2.4rem}
.syl-word{font-weight:700;color:#555;font-size:.95rem}

.cons-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:12px 0}
.cons-btn{width:56px;height:56px;font-size:1.7rem;font-weight:900;border:3px solid #ece9fb;
  border-radius:16px;background:#fff;cursor:pointer;font-family:inherit;color:var(--ink);margin:0;padding:0}
.cons-btn:hover{border-color:var(--purple)}
.cons-btn.sel{background:var(--purple);color:#fff;border-color:var(--purple)}

/* ---------- Ajustes de voz ---------- */
.settings-form{margin-top:6px;max-width:520px}
.settings-form select{width:100%;padding:12px;border:2px solid #e2e2ee;border-radius:12px;font-size:1rem;font-family:inherit;background:#fff}
.settings-form select:focus{outline:none;border-color:var(--purple)}
.settings-form input[type=range]{width:100%;accent-color:var(--purple);margin-top:6px}
.range-ends{display:flex;justify-content:space-between;color:#888;font-size:.82rem;margin-top:2px}
.settings-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:14px}
.settings-actions button[type=submit]{width:auto;margin-top:0;padding:12px 22px}
.small{font-size:.82rem}

/* ---------- Modo Mezcla: barra de fase ---------- */
.phasebar{display:flex;align-items:center;gap:12px;justify-content:center;flex-wrap:wrap;
  background:#fff;border-radius:16px;padding:12px 18px;margin:6px auto 0;max-width:560px;
  box-shadow:0 6px 18px rgba(0,0,0,.1)}
.phase-label{font-weight:900;color:var(--purple-dark)}
.phase-type{font-weight:800}
.dots{display:flex;gap:7px;flex-wrap:wrap}
.dot{width:16px;height:16px;border-radius:50%;background:#e2e2ee;transition:background .2s,transform .2s}
.dot.filled{background:var(--green);transform:scale(1.15)}

/* Celebración de fase superada */
.levelup{position:fixed;inset:0;z-index:9998;display:flex;align-items:center;justify-content:center;
  background:rgba(45,45,68,.55);backdrop-filter:blur(3px)}
.levelup[hidden]{display:none}
.levelup-card{background:#fff;border-radius:24px;padding:34px 40px;text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.3);animation:pop .3s}
.levelup-emoji{font-size:4rem}
.levelup-card h2{margin:.3em 0;color:var(--purple-dark)}
@keyframes pop{from{transform:scale(.7);opacity:0}to{transform:scale(1);opacity:1}}

/* ---------- Confeti ---------- */
.confetti{position:fixed;top:-10vh;z-index:9999;pointer-events:none;
  animation:fall linear forwards}
@keyframes fall{to{transform:translateY(115vh) rotate(360deg);opacity:.9}}

/* Responsive */
@media (max-width:560px){
  .activity-grid{grid-template-columns:1fr}
  .big-letter{font-size:5rem}
  .ghost-letter{font-size:11rem}
}