/* =========================================================
   Silabeador · estilo MetriKa (cristal, neón, Orbitron) + mejoras de Redondeo
   Todo está en rem: con «Escala fija» (escala.js) el tamaño base se ajusta
   a la pantalla y el juego entero escala a la vez.
   ========================================================= */
:root {
    --bg-dark: #0b1d24;
    --primary: #ff8a5b;
    --primary-glow: #ffd9c4;
    --secondary: #6ee7d0;
    --accent: #ffd23f;
    --danger: #ff5d8f;
    --success: #5bc0ff;
    --good: #5be3a1;
    --text-main: #f3f6ee;
    --text-muted: #b4c4c4;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(240, 244, 236, 0.15);
    --glass-shadow: 0 0.5rem 2rem 0 rgba(0, 0, 0, 0.4);
    --font-ui: 'Andika', 'Trebuchet MS', sans-serif;
    --font-display: 'Lilita One', 'Andika', sans-serif;
    --font-word: 'Andika', 'Trebuchet MS', sans-serif;
}

html.escala-fija { font-size: calc(16px * var(--escala, 1)); }

* { box-sizing: border-box; margin: 0; padding: 0; user-select: none; }
input { user-select: auto; }
[hidden], .hidden { display: none !important; }

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-ui);
    overflow: hidden;
    height: 100vh; height: 100dvh; width: 100vw;
    display: flex; justify-content: center; align-items: center;
    overscroll-behavior: none;
    touch-action: manipulation;
}

#bg-canvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }
#overlay {
    position: fixed; inset: 0; z-index: 2; pointer-events: none;
    background: radial-gradient(circle at center, transparent 0%, rgba(11, 29, 36, 0.8) 100%);
}

#app-container { position: relative; z-index: 10; width: 100%; max-width: 56rem; height: 100%; padding: 1rem; }

/* ---------- Pantallas ---------- */
.screen {
    position: absolute; inset: 0; padding: 1rem;
    display: flex; justify-content: center; align-items: center;
    opacity: 0; pointer-events: none; transform: scale(0.95);
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.screen.active { opacity: 1; pointer-events: auto; transform: scale(1); }
.screen.hidden { display: none; }

.glass-panel {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(0.75rem); -webkit-backdrop-filter: blur(0.75rem);
    border: 1px solid var(--glass-border);
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: var(--glass-shadow);
    width: 100%; max-height: 100%;
    overflow-y: auto;
}
.panel-sm { max-width: 30rem; }
.text-center { text-align: center; }
.mb-4 { margin-bottom: 1.2rem; }
.muted { color: var(--text-muted); }

/* ---------- Tipografía ---------- */
.logo-title {
    font-family: var(--font-display); font-size: 3.6rem; font-weight: 900; letter-spacing: 0.12rem;
    margin-bottom: 0.4rem; text-shadow: 0 0 1.2rem rgba(255, 138, 91, 0.6);
    animation: floatTitle 4s ease-in-out infinite;
}
.logo-title .accent { color: var(--secondary); text-shadow: 0 0 1.2rem rgba(110, 231, 208, 0.6); }
@keyframes floatTitle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-0.5rem); }
}
.by-line { font-family: var(--font-display); color: var(--secondary); font-size: 0.85rem; margin-bottom: 1.4rem; letter-spacing: 0.12rem; }
.subtitle { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 1.8rem; letter-spacing: 0.04rem; }
.section-title { font-family: var(--font-display); font-size: 1.7rem; color: var(--primary-glow); text-align: center; margin-bottom: 1.4rem; }

/* ---------- Formularios y botones ---------- */
.player-input-container { margin-bottom: 1.6rem; display: flex; flex-direction: column; align-items: center; gap: 0.6rem; }
.player-input-container label { font-size: 0.9rem; color: var(--primary-glow); text-transform: uppercase; letter-spacing: 0.06rem; }
input[type="text"] {
    background: rgba(0, 0, 0, 0.3); border: 2px solid var(--primary); border-radius: 3rem;
    padding: 0.8rem 1.4rem; color: #fff; font-family: var(--font-display); font-size: 1.1rem; text-align: center;
    width: 100%; max-width: 19rem; outline: none; transition: all 0.3s ease;
}
input[type="text"]::placeholder { color: rgba(255, 255, 255, 0.2); }
input[type="text"]:focus { border-color: var(--secondary); box-shadow: 0 0 1rem rgba(110, 231, 208, 0.5); }

button { font-family: var(--font-ui); font-weight: 700; cursor: pointer; outline: none; border: none; border-radius: 3rem; transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94); color: inherit; }
button:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
button:disabled { opacity: 0.5; cursor: not-allowed; filter: grayscale(1); }

.stack { display: flex; flex-direction: column; align-items: center; gap: 0.7rem; }
.btn-primary {
    background: linear-gradient(135deg, #f46a3e 0%, #d6402a 100%); color: #fff;
    padding: 0.95rem 2.2rem; font-size: 1.1rem; text-transform: uppercase; letter-spacing: 0.1rem;
    box-shadow: 0 0.25rem 1rem rgba(255, 138, 91, 0.4); width: 100%; max-width: 19rem;
}
.btn-primary:not(:disabled):hover { transform: translateY(-0.15rem); box-shadow: 0 0.5rem 1.5rem rgba(255, 138, 91, 0.6); }
.btn-primary:not(:disabled):active { transform: translateY(0.05rem); }
.btn-primary.danger { background: linear-gradient(135deg, #ff5d8f 0%, #c2185b 100%); box-shadow: 0 0.25rem 1rem rgba(255, 93, 143, 0.4); }
.btn-secondary { background: transparent; color: var(--text-muted); border: 1px solid var(--glass-border); padding: 0.7rem 1.8rem; font-size: 1rem; width: 100%; max-width: 19rem; }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.06); color: #fff; border-color: var(--primary-glow); }
.btn-icon { background: transparent; color: var(--text-muted); font-size: 1rem; padding: 0.55rem 1.1rem; border: 1px solid transparent; display: inline-flex; align-items: center; margin-bottom: 1rem; border-radius: 0.8rem; }
.btn-icon:hover { color: #fff; background: rgba(255, 255, 255, 0.06); border-color: var(--glass-border); }
.danger-icon { color: var(--danger); border-color: rgba(255, 93, 143, 0.25); margin-bottom: 0; }
.danger-icon:hover { color: #fff; background: rgba(255, 93, 143, 0.3); border-color: var(--danger); }

.gear-btn { position: absolute; top: 0.8rem; right: 0.8rem; width: 2.8rem; height: 2.8rem; font-size: 1.3rem; background: rgba(0, 0, 0, 0.35); border: 1px solid var(--glass-border); }
.gear-btn:hover { transform: rotate(60deg); border-color: var(--primary-glow); }
.close-x { position: absolute; top: 0.7rem; right: 0.7rem; width: 2.2rem; height: 2.2rem; background: rgba(255, 255, 255, 0.06); font-size: 1rem; line-height: 1; }
.close-x:hover { background: rgba(255, 93, 143, 0.35); }

/* ---------- Modos y configuración ---------- */
.modes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; max-width: 38rem; margin: 0 auto; }
.mode-card {
    background: rgba(0, 0, 0, 0.2); border: 1px solid var(--glass-border); border-radius: 1.25rem;
    padding: 1.6rem 1.2rem; display: flex; flex-direction: column; align-items: center; text-align: center;
}
.mode-card .icon { font-size: 2.6rem; margin-bottom: 0.8rem; transition: transform 0.3s ease; }
.mode-card h3 { font-family: var(--font-display); color: var(--secondary); margin-bottom: 0.5rem; font-size: 1.1rem; }
.mode-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.4; font-weight: 400; }
.mode-card:hover { background: rgba(255, 138, 91, 0.12); border-color: var(--primary); transform: translateY(-0.3rem); box-shadow: 0 0.6rem 1.2rem rgba(0, 0, 0, 0.3); }
.mode-card:hover .icon { transform: scale(1.15); }

.activity-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem; max-width: 38rem; margin: 0 auto 1.4rem; }
.activity-card {
    background: rgba(0, 0, 0, 0.25); border: 2px solid var(--glass-border); border-radius: 1.1rem;
    padding: 1rem 0.9rem; display: grid; grid-template-columns: auto 1fr; column-gap: 0.8rem; align-items: center; text-align: left;
}
.activity-card .icon { grid-row: span 2; font-size: 2rem; }
.activity-card strong { font-family: var(--font-display); font-size: 0.95rem; color: var(--primary-glow); }
.activity-card small { color: var(--text-muted); font-weight: 400; font-size: 0.8rem; }
.activity-card:hover { border-color: var(--primary); background: rgba(255, 138, 91, 0.1); }
.activity-card.selected { border-color: var(--secondary); background: rgba(110, 231, 208, 0.1); box-shadow: 0 0 1.2rem rgba(110, 231, 208, 0.25); }
.activity-card.selected strong { color: var(--secondary); }
.activity-card.card-wide { grid-column: 1 / -1; }

.config-row { display: flex; align-items: center; justify-content: center; gap: 1rem; flex-wrap: wrap; margin: 0.6rem 0; }
.config-label { font-family: var(--font-display); font-size: 0.8rem; letter-spacing: 0.1rem; color: var(--text-muted); text-transform: uppercase; min-width: 4.5rem; text-align: right; }
.config-hint { text-align: center; color: var(--text-muted); font-size: 0.8rem; min-height: 1.2rem; margin-bottom: 0.8rem; font-weight: 400; }
.segmented { display: inline-flex; flex-wrap: wrap; gap: 0.4rem; justify-content: center; }
.segmented button {
    background: rgba(0, 0, 0, 0.3); border: 1px solid var(--glass-border); color: var(--text-muted);
    padding: 0.5rem 1rem; font-size: 0.95rem; border-radius: 0.8rem; min-width: 3.4rem;
}
.segmented button:hover { border-color: var(--primary-glow); color: #fff; }
.segmented button.selected { background: rgba(110, 231, 208, 0.14); border-color: var(--secondary); color: var(--secondary); }
#screen-config .stack { margin-top: 1rem; }

/* ---------- Juego ---------- */
#screen-game { flex-direction: column; justify-content: center; gap: 0.8rem; }
#active-mode-display { text-align: center; font-family: var(--font-display); font-size: 0.8rem; letter-spacing: 0.18rem; width: 100%; }
.mode-name { color: var(--secondary); }

.game-hud {
    position: relative; display: flex; justify-content: space-between; align-items: center; width: 100%;
    background: var(--glass-bg); backdrop-filter: blur(0.75rem); -webkit-backdrop-filter: blur(0.75rem);
    padding: 0.8rem 1.6rem; border-radius: 3rem; border: 1px solid var(--glass-border);
}
.hud-item { display: flex; flex-direction: column; align-items: center; min-width: 5rem; }
.hud-item.centered { position: absolute; left: 50%; transform: translateX(-50%); }
.hud-label { font-size: 0.65rem; color: var(--text-muted); letter-spacing: 0.12rem; margin-bottom: 0.15rem; }
.hud-value { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; color: var(--accent); text-shadow: 0 0 0.6rem rgba(255, 210, 63, 0.3); }
.timer-container .hud-value { color: var(--secondary); text-shadow: 0 0 0.6rem rgba(110, 231, 208, 0.3); }
.timer-container .hud-value.danger { color: var(--danger); text-shadow: 0 0 0.6rem rgba(255, 93, 143, 0.6); animation: pulse 1s infinite alternate; }
@keyframes pulse { from { transform: scale(1); } to { transform: scale(1.1); } }

#streak-badge {
    min-height: 1.8rem; font-family: var(--font-display); font-size: 0.95rem; color: var(--accent);
    text-shadow: 0 0 0.8rem rgba(255, 210, 63, 0.5); opacity: 0; transition: opacity 0.3s;
}
#streak-badge.visible { opacity: 1; }
.streak-pop { animation: streak-pop 0.4s cubic-bezier(0.2, 1.6, 0.4, 1); }
@keyframes streak-pop { 0% { transform: scale(0.4); } 100% { transform: scale(1); } }

.game-board { display: flex; flex-direction: column; align-items: center; padding: 1.6rem 1.6rem 1.4rem; max-height: none; min-height: 0; flex: 0 1 auto; overflow-y: auto; overflow-x: hidden; }
.step-indicator { min-height: 1.4rem; margin-bottom: 0.5rem; font-family: var(--font-display); font-size: 0.78rem; letter-spacing: 0.12rem; color: var(--primary-glow); display: flex; gap: 0.5rem; align-items: center; justify-content: center; }
.step-dot { width: 0.7rem; height: 0.7rem; border-radius: 50%; background: rgba(255, 255, 255, 0.15); }
.step-dot.done { background: var(--good); }
.step-dot.now { background: var(--secondary); box-shadow: 0 0 0.6rem var(--secondary); }
.question-display { font-size: 1.25rem; text-align: center; margin-bottom: 1rem; line-height: 1.4; color: var(--text-muted); font-weight: 400; }
.question-display b { color: var(--primary-glow); font-weight: 700; }
#question-area { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 1.2rem; }
.answer-note { min-height: 1.8rem; margin-top: 0.8rem; font-size: 1.1rem; text-align: center; color: var(--text-muted); }
.answer-note b { color: var(--good); font-family: var(--font-display); letter-spacing: 0.05rem; }

/* La palabra y las sílabas */
.palabra-grande {
    font-family: var(--font-word); font-weight: 700; font-size: 3.4rem; letter-spacing: 0.08rem; text-align: center;
    color: #fff; text-shadow: 0 0 1.4rem rgba(255, 138, 91, 0.55); word-break: keep-all; animation: q-pop 0.35s ease both;
}
#palabra-tilde-display { font-size: 2.8rem; margin-bottom: -0.2rem; }
@keyframes q-pop { 0% { opacity: 0; } 100% { opacity: 1; } }      /* solo aparece (antes crecía y giraba un poco: parecía una sacudida de fallo) */
.sil-fila { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0.5rem; }
.sil-chip {
    background: rgba(0, 0, 0, 0.35); border: 2px solid var(--glass-border); color: #fff;
    font-family: var(--font-word); font-weight: 700; font-size: 2.2rem; padding: 0.7rem 1.1rem; border-radius: 1.1rem; min-width: 3.6rem;
}
.sil-chip.fija { cursor: default; }
.sil-chip.tonica { border-color: var(--accent); color: var(--accent); background: rgba(255, 210, 63, 0.1); text-shadow: 0 0 0.7rem rgba(255, 210, 63, 0.5); }
.sil-guion { font-family: var(--font-display); font-size: 1.6rem; color: var(--primary-glow); }
button.sil-chip:hover { border-color: var(--secondary); background: rgba(110, 231, 208, 0.1); transform: translateY(-0.2rem); }
.sil-chip.correct { background: rgba(91, 227, 161, 0.25); border-color: var(--good); box-shadow: 0 0 1.2rem rgba(91, 227, 161, 0.5); animation: correctPop 0.3s ease; }
.sil-chip.wrong { background: rgba(255, 93, 143, 0.3); border-color: var(--danger); box-shadow: 0 0 1.2rem rgba(255, 93, 143, 0.5); animation: wrongShake 0.4s ease; }

/* Cortar la palabra: cada hueco entre letras es un elemento DENTRO de la palabra (siempre queda entre sus dos letras);
   bajo él hay un botón y entre ambos sube una línea que corta la palabra (boceto del profe) */
.cortador, .cortador * { transition-property: none; }
.cortador { position: relative; width: 100%; font-family: var(--font-word); font-weight: 700; font-size: var(--tam, 2.8rem); line-height: 1.3; margin-top: 0.7rem; }
.palabra-cortar { display: flex; justify-content: center; align-items: stretch; white-space: nowrap; }
.cortador .letra { color: #f3f6ee; text-shadow: 0 0.04em 0 rgba(0, 0, 0, 0.3), 0 0 0.9rem rgba(255, 138, 91, 0.22); }
.palanca {
    --nivel: 0; position: relative; flex: none; width: 0.34em; padding: 0; margin: 0; background: none; border: none; border-radius: 0;
    font-size: inherit; pointer-events: none;
}
.palanca.n2 { --nivel: 1; }
.palanca .linea {
    position: absolute; left: 50%; top: 0.08em; width: 0.07em; min-width: 3px; transform: translateX(-50%); border-radius: 3px; pointer-events: auto;
    bottom: calc(-1 * (var(--sep, 0.3em) + var(--nivel) * (var(--padh, 3rem) + var(--entre, 8px))));
    background: repeating-linear-gradient(to bottom, rgba(255, 255, 255, 0.34) 0 0.2em, transparent 0.2em 0.38em);
    transition: width 0.15s, background 0.15s, box-shadow 0.15s;
}
.palanca .linea::before { content: ''; position: absolute; top: 0; bottom: 0; left: 50%; width: var(--hit, 1.1em); transform: translateX(-50%); }   /* zona de toque junto a la línea */
.palanca .pad {
    position: absolute; left: calc(50% - var(--padw, 3rem) / 2); top: calc(100% + var(--sep, 0.3em) + var(--nivel) * (var(--padh, 3rem) + var(--entre, 8px)));
    width: var(--padw, 3rem); height: var(--padh, 3rem); border-radius: 0.3em; pointer-events: auto;
    display: flex; align-items: center; justify-content: center; color: rgba(255, 255, 255, 0.75);
    background: rgba(255, 255, 255, 0.08); border: 0.055em dashed rgba(255, 255, 255, 0.4); box-shadow: 0 0.1em 0 rgba(0, 0, 0, 0.28);
    transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.12s, box-shadow 0.15s;
}
.palanca .tijera { width: 58%; height: 58%; fill: none; stroke: currentColor; stroke-width: 2.1; stroke-linecap: round; stroke-linejoin: round; }
@media (hover: hover) {
    .palanca .pad:hover { background: rgba(255, 210, 63, 0.16); border-color: var(--accent); color: var(--accent); transform: translateY(-0.05em); }
}
.palanca .pad:active { transform: translateY(0.06em); }
/* al pulsar, el amarillo sube desde el botón hasta completar la línea */
.palanca .linea::after {
    content: ''; position: absolute; inset: 0; border-radius: inherit; background: var(--accent); box-shadow: 0 0 0.7rem rgba(255, 210, 63, 0.8);
    transform: scaleY(0); transform-origin: 50% 100%; transition: transform 0.22s cubic-bezier(0.2, 0.8, 0.3, 1);
}
.palanca.on .linea { width: 0.11em; }
.palanca.on .linea::after { transform: scaleY(1); }
.palanca.on .pad { background: rgba(255, 210, 63, 0.24); border: 0.055em solid var(--accent); color: var(--accent); box-shadow: 0 0 0.9rem rgba(255, 210, 63, 0.5); transform: translateY(0.06em); }
.palanca.ok .linea { width: 0.11em; background: var(--good); box-shadow: 0 0 0.7rem rgba(91, 227, 161, 0.7); }
.palanca.ok .pad { background: rgba(91, 227, 161, 0.24); border: 0.055em solid var(--good); color: var(--good); }
.palanca.mal .linea { width: 0.11em; background: var(--danger); box-shadow: 0 0 0.7rem rgba(255, 93, 143, 0.7); }
.palanca.mal .pad { background: rgba(255, 93, 143, 0.26); border: 0.055em solid var(--danger); color: var(--danger); }
.palanca.falta .linea { width: 0.1em; background: repeating-linear-gradient(to bottom, var(--good) 0 0.18em, transparent 0.18em 0.34em); opacity: 0.8; }
.palanca.falta .pad { background: rgba(91, 227, 161, 0.07); border: 0.07em dashed var(--good); color: var(--good); }
.cortador.bloqueado .linea, .cortador.bloqueado .pad { pointer-events: none; }
.cortador-ayuda { color: var(--text-muted); font-size: 0.9rem; text-align: center; font-weight: 400; }
.acciones-cortador { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; width: 100%; }
.acciones-cortador button { max-width: 14rem; }

/* Respuestas de elegir */
.options-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; width: 100%; }
.option-btn {
    background: rgba(0, 0, 0, 0.3); border: 2px solid var(--glass-border); padding: 1rem 0.8rem;
    display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 0.3rem;
    color: #fff; border-radius: 1.2rem; min-height: 5rem; min-width: 0;
}
.option-btn .tit { font-family: var(--font-display); font-size: 1.4rem; }
.option-btn .sub { font-size: 0.78rem; color: var(--text-muted); font-weight: 400; text-align: center; }
@media (hover: hover) {
    .option-btn:hover { background: rgba(110, 231, 208, 0.1); border-color: var(--secondary); transform: translateY(-0.2rem); box-shadow: 0 0.3rem 1rem rgba(110, 231, 208, 0.2); }
}
.option-btn:active { transform: translateY(0.1rem); }
.option-btn.correct { background: rgba(91, 227, 161, 0.25); border-color: var(--good); box-shadow: 0 0 1.2rem rgba(91, 227, 161, 0.5); animation: correctPop 0.3s ease; }
.option-btn.wrong { background: rgba(255, 93, 143, 0.3); border-color: var(--danger); box-shadow: 0 0 1.2rem rgba(255, 93, 143, 0.5); animation: wrongShake 0.4s ease; }
.bloqueado .option-btn, .bloqueado .sil-chip, .bloqueado .btn-no-tilde { pointer-events: none; }
.acciones-tilde { display: flex; justify-content: center; width: 100%; margin-top: 0.8rem; }
.btn-no-tilde {
    background: rgba(0, 0, 0, 0.35); border: 2px solid var(--glass-border); color: #fff;
    font-family: var(--font-display); font-size: 1.15rem; padding: 0.8rem 1.6rem; border-radius: 1.2rem;
    max-width: 18rem; width: 100%; transition: all 0.2s ease; cursor: pointer;
}
.btn-no-tilde:hover { border-color: var(--secondary); background: rgba(110, 231, 208, 0.12); transform: translateY(-0.15rem); }
.btn-no-tilde.correct { background: rgba(91, 227, 161, 0.25); border-color: var(--good); box-shadow: 0 0 1.2rem rgba(91, 227, 161, 0.5); animation: correctPop 0.3s ease; }
.btn-no-tilde.wrong { background: rgba(255, 93, 143, 0.3); border-color: var(--danger); box-shadow: 0 0 1.2rem rgba(255, 93, 143, 0.5); animation: wrongShake 0.4s ease; }
@keyframes correctPop { 0% { transform: scale(1); } 50% { transform: scale(1.06); } 100% { transform: scale(1); } }
@keyframes wrongShake { 0%, 100% { transform: translateX(0); } 20%, 60% { transform: translateX(-0.35rem); } 40%, 80% { transform: translateX(0.35rem); } }

/* Textos emergentes */
.speed-popup {
    position: absolute; font-family: var(--font-display); font-size: 1.8rem; font-weight: 900; pointer-events: none; z-index: 50;
    text-align: center; width: 100%; top: 40%; left: 0; animation: speedPop 1.2s ease-out forwards;
}
.speed-text-super { color: var(--danger); text-shadow: 0 0 1.8rem var(--danger); }
.speed-text-high { color: var(--secondary); text-shadow: 0 0 1.8rem var(--secondary); }
@keyframes speedPop {
    0% { transform: translateY(1rem) scale(0.5); opacity: 0; }
    20% { transform: translateY(-2.5rem) scale(1.2); opacity: 1; }
    80% { transform: translateY(-4rem) scale(1); opacity: 1; }
    100% { transform: translateY(-5rem) scale(1); opacity: 0; }
}
.float-text { position: fixed; z-index: 400; font-family: var(--font-display); font-weight: 900; font-size: 1.4rem; pointer-events: none; animation: float-up 0.95s ease-out forwards; }
.float-good { color: var(--good); text-shadow: 0 0 0.8rem rgba(91, 227, 161, 0.6); }
.float-bad { color: var(--danger); }
@keyframes float-up { 0% { opacity: 0; transform: translate(-50%, -30%) scale(0.6); } 20% { opacity: 1; transform: translate(-50%, -80%) scale(1.15); } 100% { opacity: 0; transform: translate(-50%, -220%) scale(1); } }

.feedback-fx { position: fixed; inset: 0; pointer-events: none; z-index: 100; opacity: 0; transition: opacity 0.35s ease-out; }
.feedback-fx.on { opacity: 1; transition: opacity 0.1s ease-out; }
/* con id: si no, «.screen.active > *» (que pone opacidad 1 a todo hijo directo de la pantalla) gana y el destello no se apaga nunca */
#feedback-overlay.feedback-fx { opacity: 0; transform: none; transition: opacity 0.35s ease-out; }
#feedback-overlay.feedback-fx.on { opacity: 1; transition: opacity 0.1s ease-out; }
.feedback-fx.correct { background: radial-gradient(circle, transparent 40%, rgba(91, 227, 161, 0.22) 100%); }
.feedback-fx.wrong { background: radial-gradient(circle, transparent 40%, rgba(255, 93, 143, 0.3) 100%); }

/* ---------- Resultados ---------- */
.stats-display { display: flex; justify-content: center; gap: 1.4rem; margin: 1.4rem 0; flex-wrap: wrap; }
.stat-box { background: rgba(0, 0, 0, 0.2); border: 1px solid var(--glass-border); padding: 1rem; border-radius: 1.2rem; display: flex; flex-direction: column; min-width: 9rem; }
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.5rem; text-transform: uppercase; }
.stat-value { font-family: var(--font-display); font-size: 2.2rem; font-weight: 700; }
.stat-value.accent { color: var(--accent); text-shadow: 0 0 1rem rgba(255, 210, 63, 0.4); }
.res-detail { color: var(--text-muted); margin-bottom: 0.8rem; font-weight: 400; }
.res-repasar { margin: 0 auto 1rem; max-width: 34rem; font-size: 0.95rem; color: var(--text-muted); font-weight: 400; }
.res-repasar b { color: var(--primary-glow); }
.res-repasar .pal { display: inline-block; margin: 0.2rem; padding: 0.2rem 0.7rem; border-radius: 2rem; background: rgba(255, 93, 143, 0.15); border: 1px solid rgba(255, 93, 143, 0.4); color: #fff; font-family: var(--font-display); font-size: 0.85rem; }
.celebration-text { font-size: 1.3rem; color: var(--secondary); margin-bottom: 1.4rem; font-family: var(--font-display); }
.action-buttons { display: flex; flex-direction: column; align-items: center; gap: 0.8rem; }

/* ---------- Ranking ---------- */
.ranking-filter { display: flex; justify-content: flex-end; gap: 0.6rem; margin-bottom: 1rem; flex-wrap: wrap; }
select { background: rgba(0, 0, 0, 0.4); color: #fff; border: 1px solid var(--primary); padding: 0.6rem 1rem; border-radius: 0.7rem; font-family: var(--font-ui); outline: none; cursor: pointer; font-size: 0.95rem; }
select option { background: #12303a; }
.ranking-table-container { background: rgba(0, 0, 0, 0.2); border-radius: 1rem; max-height: 45vh; overflow: auto; }
.ranking-table { width: 100%; border-collapse: collapse; text-align: left; }
.ranking-table th { background: rgba(255, 138, 91, 0.2); padding: 0.8rem 1.1rem; font-family: var(--font-display); color: var(--primary-glow); position: sticky; top: 0; }
.ranking-table td { padding: 0.8rem 1.1rem; border-bottom: 1px solid var(--glass-border); }
.ranking-table tr:hover { background: rgba(255, 255, 255, 0.05); }
.ranking-table tr:first-child td { color: var(--accent); font-weight: bold; }
.ranking-note { margin-top: 0.8rem; text-align: center; font-size: 0.8rem; color: var(--text-muted); font-weight: 400; }

/* ---------- Ventanas ---------- */
.modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(0.3rem); -webkit-backdrop-filter: blur(0.3rem); z-index: 500; display: flex; justify-content: center; align-items: center; padding: 1rem; }
.modal-overlay > .glass-panel { animation: modal-in 0.3s ease both; background: rgba(16, 38, 48, 0.92); }
@keyframes modal-in { from { opacity: 0; transform: translateY(1.5rem) scale(0.94); } to { opacity: 1; transform: none; } }
#new-player-name { margin-bottom: 0.4rem; }

.perf-switch { position: relative; flex-shrink: 0; width: 2.7rem; height: 1.5rem; border-radius: 1rem; background: rgba(255, 255, 255, 0.18); transition: background 0.2s; }
.perf-switch::after { content: ''; position: absolute; top: 0.2rem; left: 0.2rem; width: 1.1rem; height: 1.1rem; border-radius: 50%; background: #fff; transition: transform 0.2s; }

/* Diálogos propios y ventana de explicación */
.dialog-overlay { position: fixed; inset: 0; z-index: 600; background: rgba(0, 0, 0, 0.82); backdrop-filter: blur(0.3rem); -webkit-backdrop-filter: blur(0.3rem); display: flex; justify-content: center; align-items: center; padding: 1rem; animation: fade-in 0.2s ease both; }
.dialog-overlay.dialog-out { animation: fade-out 0.2s ease forwards; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes fade-out { to { opacity: 0; } }
.dialog-box { position: relative; background: rgba(16, 38, 48, 0.96); border: 1px solid var(--glass-border); border-radius: 1.5rem; padding: 1.8rem; width: 100%; max-width: 26rem; text-align: center; box-shadow: var(--glass-shadow); animation: modal-in 0.3s ease both; }
.dialog-icon { font-size: 2.4rem; line-height: 1; margin-bottom: 0.5rem; }
.dialog-title { font-family: var(--font-display); color: var(--primary-glow); margin-bottom: 0.5rem; }
.dialog-message { color: var(--text-muted); line-height: 1.5; font-weight: 400; }
.dialog-actions { display: flex; justify-content: center; align-items: center; gap: 0.8rem; flex-wrap: wrap; margin-top: 1.2rem; }
.dialog-actions button { width: auto; min-width: 9rem; }

.ex-box { max-width: 66rem; max-height: 100%; overflow-y: auto; text-align: left; padding: 1.1rem 1.4rem 1.2rem; }
/* dos columnas (por qué | cómo) para que quepa sin scroll; en pantallas estrechas, una */
.ex-contenido { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; align-items: start; }
.ex-contenido > .ex-cabecera, .ex-contenido > .dialog-actions { grid-column: 1 / -1; }
.ex-contenido .ex-card { margin-top: 0.6rem; padding: 0.75rem 1rem; font-size: 0.92rem; line-height: 1.5; }
.ex-contenido .ex-cabecera { margin-bottom: 0.2rem; }
.ex-contenido .ex-emoji { font-size: 1.9rem; line-height: 1.1; }
.ex-contenido .dialog-actions { margin-top: 0.8rem; }
@media (max-width: 900px) { .ex-contenido { grid-template-columns: 1fr; } .ex-box { max-width: 40rem; } }
.ex-cabecera { text-align: center; margin-bottom: 0.8rem; }
.ex-emoji { font-size: 2.4rem; animation: ex-duda 1.6s ease 0.2s; }
@keyframes ex-duda { 0%, 100% { transform: rotate(0); } 15% { transform: rotate(-12deg); } 30% { transform: rotate(10deg); } 45% { transform: rotate(0); } }
.ex-titulo { font-family: var(--font-display); color: var(--primary-glow); font-size: 1.3rem; margin: 0.2rem 0; }
.ex-enunciado { color: var(--text-muted); font-weight: 400; }
.ex-enunciado b { color: #fff; }
.ex-respuestas { display: flex; justify-content: center; gap: 0.6rem; flex-wrap: wrap; margin-top: 0.7rem; }
.ex-pill { padding: 0.35rem 0.9rem; border-radius: 2rem; font-size: 0.9rem; border: 1px solid; font-weight: 400; }
.ex-pill b { font-family: var(--font-display); }
.ex-pill.mal { color: var(--danger); border-color: rgba(255, 93, 143, 0.5); background: rgba(255, 93, 143, 0.1); }
.ex-pill.bien { color: var(--good); border-color: rgba(91, 227, 161, 0.5); background: rgba(91, 227, 161, 0.1); }
.ex-card { background: rgba(0, 0, 0, 0.25); border: 1px solid var(--glass-border); border-radius: 1rem; padding: 0.9rem 1.1rem; margin-top: 0.8rem; line-height: 1.55; font-weight: 400; font-size: 0.95rem; }
.ex-card h4 { font-family: var(--font-display); font-size: 0.9rem; color: var(--secondary); margin-bottom: 0.5rem; }
.ex-card b { color: #fff; font-weight: 700; }
.ex-mal { color: var(--danger) !important; }
.ex-bien { color: var(--good) !important; }
.ex-pasos { padding-left: 1.3rem; display: flex; flex-direction: column; gap: 0.7rem; }
.ex-pasos > li::marker { color: var(--accent); font-weight: 700; }
.ex-lista { padding-left: 1.2rem; margin: 0.4rem 0; display: flex; flex-direction: column; gap: 0.35rem; }
.ex-truco { margin-top: 0.4rem; padding: 0.5rem 0.7rem; border-radius: 0.7rem; background: rgba(255, 210, 63, 0.08); border-left: 3px solid var(--accent); font-size: 0.88rem; }
.ex-conclusion { margin-top: 0.5rem; text-align: center; padding: 0.5rem; border-radius: 0.7rem; background: rgba(110, 231, 208, 0.07); }
.ex-sils { display: inline-flex; align-items: center; flex-wrap: wrap; gap: 0.15rem; vertical-align: middle; }
.ex-sil { font-family: var(--font-word); font-weight: 700; padding: 0.15rem 0.55rem; border-radius: 0.5rem; background: rgba(255, 255, 255, 0.08); color: #fff; }
.ex-sil.tonica { background: rgba(255, 210, 63, 0.15); color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.ex-guion { color: var(--primary-glow); font-family: var(--font-display); }
.ex-pos { display: flex; justify-content: center; gap: 0.5rem; margin: 0.6rem 0 0.2rem; flex-wrap: wrap; }
.ex-pos-col { display: flex; flex-direction: column; align-items: center; gap: 0.2rem; padding: 0.5rem 0.8rem; border-radius: 0.8rem; background: rgba(255, 255, 255, 0.05); min-width: 4.4rem; }
.ex-pos-col.tonica { background: rgba(255, 210, 63, 0.12); box-shadow: 0 0 0 1px var(--accent); }
.ex-pos-sil { font-family: var(--font-word); font-weight: 700; font-size: 1.2rem; }
.ex-pos-col.tonica .ex-pos-sil { color: var(--accent); }
.ex-pos-etq { font-size: 0.72rem; color: var(--text-muted); min-height: 1rem; }
.ex-pos-marca { font-size: 0.72rem; color: var(--accent); font-weight: 700; }
.ex-palabra { display: flex; justify-content: center; align-items: center; margin: 0.6rem 0 0.3rem; font-family: var(--font-word); font-weight: 700; font-size: 1.8rem; }
.ex-letra { color: var(--text-muted); }
.ex-letra.nucleo { color: #fff; text-shadow: 0 0 0.6rem rgba(255, 138, 91, 0.9); border-bottom: 3px solid var(--primary); }
.ex-corte { display: inline-block; width: 0.5em; text-align: center; color: transparent; }
.ex-corte.bien, .ex-corte.sobra, .ex-corte.falta { color: var(--good); font-weight: 400; }
.ex-corte.sobra { color: var(--danger); }
.ex-corte.falta { color: var(--good); opacity: 0.7; }
.ex-leyenda { text-align: center; font-size: 0.8rem; color: var(--text-muted); }
.ex-leyenda .ex-corte { width: auto; }
.ex-ok { max-width: 100%; }

/* Cuenta atrás, avisos y confeti */
#countdown-overlay { position: fixed; inset: 0; z-index: 700; background: rgba(11, 29, 36, 0.82); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; text-align: center; }
#countdown-overlay.countdown-out { animation: fade-out 0.3s ease forwards; }
.countdown-header { font-family: var(--font-display); color: var(--primary-glow); font-size: 1.1rem; letter-spacing: 0.1rem; }
.countdown-number { font-family: var(--font-display); font-weight: 900; font-size: 8rem; color: var(--secondary); text-shadow: 0 0 2.5rem rgba(110, 231, 208, 0.7); min-height: 10rem; }
.countdown-number.go { color: var(--accent); text-shadow: 0 0 2.5rem rgba(255, 210, 63, 0.7); font-size: 6rem; }
.count-pop { animation: count-pop 0.38s both; }
@keyframes count-pop { 0% { opacity: 0; transform: scale(2.2); } 60% { opacity: 1; transform: scale(0.9); } 100% { transform: scale(1); } }

#toast-container { position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%); z-index: 800; display: flex; flex-direction: column; gap: 0.5rem; align-items: center; pointer-events: none; }
.toast { padding: 0.7rem 1.3rem; border-radius: 2rem; background: rgba(24, 52, 64, 0.95); border: 1px solid var(--glass-border); font-weight: 600; font-size: 0.95rem; box-shadow: var(--glass-shadow); animation: toast-in 0.3s ease both; }
.toast-warn { border-color: var(--accent); color: var(--accent); }
.toast-success { border-color: var(--good); color: var(--good); }
.toast-out { animation: toast-out 0.4s ease forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateY(1rem) scale(0.9); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateY(0.6rem); } }

.confetti-layer { position: fixed; inset: 0; pointer-events: none; z-index: 650; overflow: hidden; }
.confetti-layer i { position: absolute; top: -1rem; left: var(--x); width: 0.6rem; height: 1rem; opacity: 0; animation: confetti-fall var(--dur) var(--delay) ease-in forwards; }
@keyframes confetti-fall { 0% { transform: translate(0, 0) rotate(0); opacity: 1; } 100% { transform: translate(var(--drift), 110vh) rotate(var(--rot)); opacity: 0.9; } }
.shake { animation: wrongShake 0.4s ease; }

::-webkit-scrollbar { width: 0.5rem; height: 0.5rem; }
::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.2); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 0.3rem; }

/* ---------- Modo ligero: sin desenfoque, fondos un poco más opacos ---------- */
html.ligero *, html.ligero *::before, html.ligero *::after { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }
html.ligero .glass-panel, html.ligero .game-hud { background: rgba(20, 44, 54, 0.82); }
html.ligero .modal-overlay, html.ligero .dialog-overlay { background: rgba(6, 16, 22, 0.9); }
html.ligero .logo-title { animation: none; }





/* ---------- Pantallas estrechas (móvil) ---------- */
@media (max-width: 640px) {
    #app-container { padding: 0.5rem; }
    .screen { padding: 0.5rem; }
    .glass-panel { padding: 1.1rem 0.9rem; }
    .logo-title { font-size: 2.6rem; }
    .subtitle { margin-bottom: 1.1rem; font-size: 1rem; }
    .section-title { font-size: 1.4rem; margin-bottom: 1rem; }
    .modes-grid, .activity-grid { grid-template-columns: 1fr; gap: 0.6rem; }
    .mode-card { padding: 0.8rem; flex-direction: row; gap: 0.8rem; text-align: left; }
    .mode-card .icon { font-size: 2rem; margin: 0; }
    .mode-card p { font-size: 0.8rem; }
    .config-label { min-width: 0; width: 100%; text-align: center; }
    .game-hud { padding: 0.6rem 0.7rem; border-radius: 1.2rem; }
    .hud-item { min-width: 3.5rem; }
    .hud-value { font-size: 1.15rem; }
    .btn-icon.danger-icon { padding: 0.4rem 0.6rem; font-size: 0.85rem; }
    .game-board { padding: 1rem 0.7rem; }
    .palabra-grande { font-size: 2.3rem; }
    .sil-chip { font-size: 1.5rem; padding: 0.5rem 0.7rem; min-width: 2.6rem; }
    .options-grid { grid-template-columns: 1fr; gap: 0.6rem; }
    .option-btn { min-height: 3.6rem; padding: 0.6rem; flex-direction: row; gap: 0.8rem; }
    .option-btn .tit { font-size: 1.2rem; }
    .question-display { font-size: 1.05rem; margin-bottom: 0.6rem; }
    .stat-box { min-width: 6.5rem; padding: 0.7rem; }
    .stat-value { font-size: 1.6rem; }
    .ranking-table th, .ranking-table td { padding: 0.6rem 0.4rem; font-size: 0.88rem; }
    .countdown-number { font-size: 6rem; }
    .ex-box { padding: 1.2rem 0.9rem; }
    .ex-palabra { font-size: 1.4rem; }
}

/* Pantallas de poca altura (móvil apaisado, portátiles pequeños sin escala) */
@media (max-height: 700px) {
    .logo-title { font-size: 2.6rem; margin-bottom: 0.2rem; }
    .subtitle { margin-bottom: 0.9rem; font-size: 0.95rem; }
    .by-line { margin-bottom: 0.7rem; }
    .player-input-container { margin-bottom: 0.9rem; }
    .glass-panel { padding: 1rem; }
    .game-board { padding: 0.9rem 0.8rem; }
    .palabra-grande { font-size: 2.4rem; }
    .section-title { margin-bottom: 0.8rem; font-size: 1.4rem; }
    .mode-card { padding: 0.8rem; }
    .mode-card .icon { font-size: 1.8rem; margin-bottom: 0.2rem; }
    #screen-game { gap: 0.4rem; }
    .question-display { margin-bottom: 0.4rem; }
}


/* =========================================================
   Identidad propia: pizarra y tiza
   ========================================================= */
body { background-image: radial-gradient(ellipse at 50% -10%, #1d4a55 0%, #0f2a33 45%, #0b1d24 100%); }
#overlay {
    background:
        radial-gradient(circle at center, transparent 0%, rgba(11, 29, 36, 0.72) 100%),
        repeating-linear-gradient(0deg, transparent 0 3.4rem, rgba(255, 255, 255, 0.03) 3.4rem calc(3.4rem + 2px));
}
.glass-panel { border-width: 2px; border-radius: 1.4rem; }
.mode-card h3, .activity-card strong { letter-spacing: 0.03rem; font-weight: 400; }
.section-title, .hud-value, .stat-value, .dialog-title, .ex-titulo, .ex-card h4, .countdown-header, .config-label { font-weight: 400; letter-spacing: 0.05rem; }
.btn-primary, .stat-label { letter-spacing: 0.06rem; }
.option-btn .tit { font-weight: 400; font-size: 1.7rem; }
.ranking-table th { font-weight: 400; }
#active-mode-display { letter-spacing: 0.12rem; font-size: 0.9rem; }
.ex-pill b { font-family: var(--font-word); }

.logo-title {
    display: flex; justify-content: center; align-items: baseline; flex-wrap: wrap; gap: 0.08em;
    font-family: var(--font-display); font-weight: 400; font-size: 4rem; letter-spacing: 0.01em; color: var(--text-main);
    text-shadow: 0 0.05em 0 rgba(0, 0, 0, 0.3), 0 0 1.4rem rgba(255, 138, 91, 0.35); animation: none; margin-bottom: 0.5rem;
}
.logo-title .sl { position: relative; display: inline-block; animation: golpe 3.4s ease-in-out infinite; }
.logo-title .sl:nth-child(1) { animation-delay: 0s; }
.logo-title .sl:nth-child(3) { animation-delay: 0.22s; }
.logo-title .sl:nth-child(5) { animation-delay: 0.44s; }
.logo-title .sl:nth-child(7) { animation-delay: 0.66s; }
.logo-title .sl:nth-child(9) { animation-delay: 0.9s; }
.logo-title .pt { font-style: normal; color: var(--primary); font-size: 0.7em; opacity: 0.85; }
.logo-title .tonica { color: var(--accent); font-size: 1.12em; text-shadow: 0 0 1.3rem rgba(255, 210, 63, 0.55), 0 0.05em 0 rgba(0, 0, 0, 0.3); margin-left: 0.04em; }
/* el triángulo va bajo la VOCAL de la tónica («o» de «dor»), no bajo el centro de la sílaba */
.logo-title .nucleo-logo { position: relative; }
.logo-title .nucleo-logo::after { content: '▲'; position: absolute; left: 50%; bottom: -0.5em; transform: translateX(-50%); font-size: 0.26em; color: var(--accent); }
@keyframes golpe { 0%, 62%, 100% { transform: none; } 70% { transform: translateY(-0.14em) scale(1.1); } 80% { transform: none; } }
.by-line { color: var(--secondary); font-family: var(--font-ui); font-weight: 700; letter-spacing: 0.1rem; margin-top: 0.4rem; }
html.ligero .logo-title .sl { animation: none; }
@media (max-width: 640px) { .logo-title { font-size: 2.8rem; } }
@media (max-height: 700px) { .logo-title { font-size: 3rem; } }


/* =========================================================
   Móvil: los mismos estilos de «pantallas estrechas», activados por la clase html.movil
   (la pone escala.js según el tamaño de la pantalla física, aunque Safari de iOS muestre
   la página en una pantalla virtual más ancha). Generado a partir del bloque @media (max-width: 640px).
   ========================================================= */
html.movil #app-container { padding: 0.5rem; }
html.movil .screen { padding: 0.5rem; }
html.movil .glass-panel { padding: 1.1rem 0.9rem; }
html.movil .logo-title { font-size: 2.6rem; }
html.movil .subtitle { margin-bottom: 1.1rem; font-size: 1rem; }
html.movil .section-title { font-size: 1.4rem; margin-bottom: 1rem; }
html.movil .modes-grid, html.movil .activity-grid { grid-template-columns: 1fr; gap: 0.6rem; }
html.movil .mode-card { padding: 0.8rem; flex-direction: row; gap: 0.8rem; text-align: left; }
html.movil .mode-card .icon { font-size: 2rem; margin: 0; }
html.movil .mode-card p { font-size: 0.8rem; }
html.movil .config-label { min-width: 0; width: 100%; text-align: center; }
html.movil .game-hud { padding: 0.6rem 0.7rem; border-radius: 1.2rem; }
html.movil .hud-item { min-width: 3.5rem; }
html.movil .hud-value { font-size: 1.15rem; }
html.movil .btn-icon.danger-icon { padding: 0.4rem 0.6rem; font-size: 0.85rem; }
html.movil .game-board { padding: 1rem 0.7rem; }
html.movil .palabra-grande { font-size: 2.3rem; }
html.movil .sil-chip { font-size: 1.5rem; padding: 0.5rem 0.7rem; min-width: 2.6rem; }
html.movil .options-grid { grid-template-columns: 1fr; gap: 0.6rem; }
html.movil .option-btn { min-height: 3.6rem; padding: 0.6rem; flex-direction: row; gap: 0.8rem; }
html.movil .option-btn .tit { font-size: 1.2rem; }
html.movil .question-display { font-size: 1.05rem; margin-bottom: 0.6rem; }
html.movil .stat-box { min-width: 6.5rem; padding: 0.7rem; }
html.movil .stat-value { font-size: 1.6rem; }
html.movil .ranking-table th, html.movil .ranking-table td { padding: 0.6rem 0.4rem; font-size: 0.88rem; }
html.movil .countdown-number { font-size: 6rem; }
html.movil .ex-box { padding: 1.2rem 0.9rem; }
html.movil .ex-palabra { font-size: 1.4rem; }
html.movil .logo-title { font-size: 2.8rem; }

/* Zonas seguras (muesca y barras del iPhone) */
.screen { padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left)); }
@media (max-width: 640px) { .screen { padding: max(0.5rem, env(safe-area-inset-top)) max(0.5rem, env(safe-area-inset-right)) max(0.5rem, env(safe-area-inset-bottom)) max(0.5rem, env(safe-area-inset-left)); } }
html.movil .screen { padding: max(0.5rem, env(safe-area-inset-top)) max(0.5rem, env(safe-area-inset-right)) max(0.5rem, env(safe-area-inset-bottom)) max(0.5rem, env(safe-area-inset-left)); }


/* Móvil: pantallas de configuración y resultados compactas para que quepan sin scroll */
@media (max-width: 640px) {
    .activity-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; margin: 0 auto 0.6rem; }
    .activity-card { grid-template-columns: 1fr; justify-items: center; text-align: center; padding: 0.55rem 0.35rem; row-gap: 0.1rem; }
    .activity-card .icon { grid-row: auto; font-size: 1.7rem; }
    .activity-card strong { font-size: 0.85rem; }
    .activity-card small { font-size: 0.7rem; line-height: 1.2; }
    #screen-config .section-title { font-size: 1.15rem; margin-bottom: 0.6rem; }
    #screen-config .back-btn { margin-bottom: 0.2rem; padding: 0.3rem 0.6rem; }
    #screen-config .config-row { margin: 0.3rem 0; gap: 0.4rem; }
    #screen-config .config-hint { margin-bottom: 0.3rem; font-size: 0.75rem; }
    #screen-config .stack { margin-top: 0.5rem; }
    .segmented button { padding: 0.4rem 0.7rem; min-width: 2.8rem; font-size: 0.9rem; }
    .stats-display { flex-wrap: nowrap; gap: 0.5rem; margin: 0.8rem 0; }
    .stat-box { flex: 1 1 0; min-width: 0; padding: 0.55rem 0.3rem; border-radius: 0.9rem; }
    .stat-label { font-size: 0.62rem; margin-bottom: 0.25rem; }
    .stat-value { font-size: 1.5rem; }
    .res-detail { font-size: 0.85rem; margin-bottom: 0.4rem; }
    .res-repasar { font-size: 0.85rem; margin: 0 auto 0.5rem; }
    .celebration-text { font-size: 1.05rem; margin-bottom: 0.8rem; }
    .action-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; width: 100%; }
    .action-buttons button { max-width: none; width: 100%; padding: 0.65rem 0.4rem; font-size: 0.85rem; }
    .action-buttons .btn-primary { grid-column: 1 / -1; font-size: 1rem; padding: 0.8rem; }
    #screen-results .section-title { margin-bottom: 0.4rem; }
}
html.movil .activity-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; margin: 0 auto 0.6rem; }
html.movil .activity-card { grid-template-columns: 1fr; justify-items: center; text-align: center; padding: 0.55rem 0.35rem; row-gap: 0.1rem; }
html.movil .activity-card .icon { grid-row: auto; font-size: 1.7rem; }
html.movil .activity-card strong { font-size: 0.85rem; }
html.movil .activity-card small { font-size: 0.7rem; line-height: 1.2; }
html.movil #screen-config .section-title { font-size: 1.15rem; margin-bottom: 0.6rem; }
html.movil #screen-config .back-btn { margin-bottom: 0.2rem; padding: 0.3rem 0.6rem; }
html.movil #screen-config .config-row { margin: 0.3rem 0; gap: 0.4rem; }
html.movil #screen-config .config-hint { margin-bottom: 0.3rem; font-size: 0.75rem; }
html.movil #screen-config .stack { margin-top: 0.5rem; }
html.movil .segmented button { padding: 0.4rem 0.7rem; min-width: 2.8rem; font-size: 0.9rem; }
html.movil .stats-display { flex-wrap: nowrap; gap: 0.5rem; margin: 0.8rem 0; }
html.movil .stat-box { flex: 1 1 0; min-width: 0; padding: 0.55rem 0.3rem; border-radius: 0.9rem; }
html.movil .stat-label { font-size: 0.62rem; margin-bottom: 0.25rem; }
html.movil .stat-value { font-size: 1.5rem; }
html.movil .res-detail { font-size: 0.85rem; margin-bottom: 0.4rem; }
html.movil .res-repasar { font-size: 0.85rem; margin: 0 auto 0.5rem; }
html.movil .celebration-text { font-size: 1.05rem; margin-bottom: 0.8rem; }
html.movil .action-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; width: 100%; }
html.movil .action-buttons button { max-width: none; width: 100%; padding: 0.65rem 0.4rem; font-size: 0.85rem; }
html.movil .action-buttons .btn-primary { grid-column: 1 / -1; font-size: 1rem; padding: 0.8rem; }
html.movil #screen-results .section-title { margin-bottom: 0.4rem; }

/* Auto-ajuste al alto disponible (app.ajustarPanel): si aun así no cabe, el contenido se reduce un poco */
.panel-contenido { width: 100%; }
@media (max-width: 640px) { .action-buttons button:last-child { grid-column: 1 / -1; } }
html.movil .action-buttons button:last-child { grid-column: 1 / -1; }

/* Móvil: pantalla de juego compacta para que «Comprobar» no quede cortado */
@media (max-width: 640px) {
    #screen-game { gap: 0.4rem; }
    #active-mode-display { font-size: 0.65rem; letter-spacing: 0.06rem; }
    .game-hud { padding: 0.4rem 0.7rem; }
    .hud-value { font-size: 1.1rem; }
    #streak-badge { min-height: 1.1rem; font-size: 0.8rem; }
    .game-board { padding: 0.8rem 0.7rem; }
    .step-indicator { min-height: 1rem; margin-bottom: 0.2rem; }
    .question-display { margin-bottom: 0.3rem; }
    #question-area { gap: 0.8rem; }
    .answer-note { min-height: 1.3rem; margin-top: 0.3rem; font-size: 0.95rem; }
    .cortador-ayuda { display: none; }
    .acciones-cortador { flex-wrap: nowrap; gap: 0.5rem; }
    .acciones-cortador button { flex: 1 1 0; max-width: none; padding: 0.7rem 0.3rem; font-size: 0.9rem; letter-spacing: 0.02rem; }
}
html.movil #screen-game { gap: 0.4rem; }
html.movil #active-mode-display { font-size: 0.65rem; letter-spacing: 0.06rem; }
html.movil .game-hud { padding: 0.4rem 0.7rem; }
html.movil .hud-value { font-size: 1.1rem; }
html.movil #streak-badge { min-height: 1.1rem; font-size: 0.8rem; }
html.movil .game-board { padding: 0.8rem 0.7rem; }
html.movil .step-indicator { min-height: 1rem; margin-bottom: 0.2rem; }
html.movil .question-display { margin-bottom: 0.3rem; }
html.movil #question-area { gap: 0.8rem; }
html.movil .answer-note { min-height: 1.3rem; margin-top: 0.3rem; font-size: 0.95rem; }
html.movil .cortador-ayuda { display: none; }
html.movil .acciones-cortador { flex-wrap: nowrap; gap: 0.5rem; }
html.movil .acciones-cortador button { flex: 1 1 0; max-width: none; padding: 0.7rem 0.3rem; font-size: 0.9rem; letter-spacing: 0.02rem; }


/* =========================================================
   Tablero de juego con tamaño CONSTANTE: ocupa el alto disponible (con un máximo en pantallas grandes),
   así no cambia de tamaño entre dividir, tónica y clasificar, ni entre los pasos de «Todo junto».
   El contenido se reparte dentro: pregunta arriba, ejercicio en medio, respuesta abajo.
   ========================================================= */
#screen-game > .game-board { flex: 1 1 auto; height: auto; min-height: 22rem; max-height: 36rem; justify-content: flex-start; }
#screen-game .game-board #question-area { flex: 1 1 auto; justify-content: space-evenly; }
#screen-game .game-board .answer-note { margin-top: 0; }

/* Móvil: los paneles ocupan todo el alto disponible y reparten su contenido */
@media (max-width: 640px) {
    .screen > .glass-panel { height: 100%; display: flex; flex-direction: column; justify-content: space-evenly; }
    #screen-config .panel-contenido, #screen-results .panel-contenido { display: flex; flex-direction: column; justify-content: space-evenly; min-height: 100%; }
    .modes-grid { flex: 1 1 auto; width: 100%; grid-auto-rows: 1fr; margin: 0.6rem auto; }
    .activity-grid { flex: 1 1 auto; width: 100%; grid-auto-rows: 1fr; align-items: stretch; }
    .activity-card { align-content: center; }
    .stats-display { margin: 0.8rem 0; }
    .ranking-table-container { flex: 1 1 auto; max-height: none; }
    .res-repasar, .res-detail { margin-top: 0; }
    #screen-game > .game-board { max-height: none; min-height: 0; padding: 0.8rem 0.7rem; }
}
html.movil .screen > .glass-panel { height: 100%; display: flex; flex-direction: column; justify-content: space-evenly; }
html.movil #screen-config .panel-contenido, html.movil #screen-results .panel-contenido { display: flex; flex-direction: column; justify-content: space-evenly; min-height: 100%; }
html.movil .modes-grid { flex: 1 1 auto; width: 100%; grid-auto-rows: 1fr; margin: 0.6rem auto; }
html.movil .activity-grid { flex: 1 1 auto; width: 100%; grid-auto-rows: 1fr; align-items: stretch; }
html.movil .activity-card { align-content: center; }
html.movil .stats-display { margin: 0.8rem 0; }
html.movil .ranking-table-container { flex: 1 1 auto; max-height: none; }
html.movil .res-repasar, html.movil .res-detail { margin-top: 0; }
html.movil #screen-game > .game-board { max-height: none; min-height: 0; padding: 0.8rem 0.7rem; }
/* el tablero de juego sigue siendo un panel hijo directo de la pantalla: conserva su propio alto */
#screen-game > .game-board { height: auto; }

/* Móvil: la pantalla de inicio agrupa logo y texto arriba, nombre y botones abajo */
@media (max-width: 640px) {
    #screen-home .glass-panel { justify-content: flex-start; }
    #screen-home .logo-title { margin-top: auto; }
    #screen-home .player-input-container { margin-top: auto; }
    #screen-home .stack { margin-bottom: 0.6rem; }
}
html.movil #screen-home .glass-panel { justify-content: flex-start; }
html.movil #screen-home .logo-title { margin-top: auto; }
html.movil #screen-home .player-input-container { margin-top: auto; }
html.movil #screen-home .stack { margin-bottom: 0.6rem; }

/* Más aire entre el indicador de paso y el enunciado de la pregunta */
.step-indicator { margin-bottom: 0.9rem; }
.step-indicator:empty { margin-bottom: 0; }
@media (max-width: 640px) { .step-indicator { margin-bottom: 0.55rem; } .step-indicator:empty { margin-bottom: 0; } }
html.movil .step-indicator { margin-bottom: 0.55rem; }
html.movil .step-indicator:empty { margin-bottom: 0; }



/* ---------- Opciones: baldosas en cuadrícula, sin scroll ---------- */
.panel-opciones { max-width: 40rem; padding: 1.4rem 1.5rem 1.3rem; overflow: hidden; }
.panel-opciones .section-title { margin-bottom: 1rem; font-size: 1.5rem; }
.ajustes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
.ajuste {
    position: relative; display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; align-items: center; column-gap: 0.75rem; row-gap: 0.05rem;
    text-align: left; padding: 0.75rem 3.4rem 0.75rem 0.85rem; min-height: 4.4rem; color: #fff; border-radius: 1.1rem;
    background: rgba(0, 0, 0, 0.28); border: 2px solid var(--glass-border);
}
.ajuste:hover { border-color: var(--primary-glow); transform: translateY(-0.1rem); }
.ajuste .aj-ico { grid-row: span 2; font-size: 1.8rem; line-height: 1; }
.ajuste .aj-tit { font-family: var(--font-display); font-size: 0.95rem; letter-spacing: 0.02rem; align-self: end; }
.ajuste .aj-sub { font-size: 0.74rem; color: var(--text-muted); font-weight: 400; line-height: 1.25; align-self: start; }
.ajuste .perf-switch { position: absolute; top: 50%; right: 0.8rem; transform: translateY(-50%); }
.ajuste[aria-pressed="true"] { border-color: var(--secondary); background: rgba(110, 231, 208, 0.1); box-shadow: 0 0 1rem rgba(110, 231, 208, 0.15); }
.ajuste[aria-pressed="true"] .aj-tit { color: var(--secondary); }
.ajuste[aria-pressed="true"] .perf-switch { background: var(--secondary); }
.ajuste[aria-pressed="true"] .perf-switch::after { transform: translateX(1.2rem); }
.aj-fondo { margin-top: 0.9rem; padding: 0.8rem 0.9rem; border-radius: 1.1rem; background: rgba(0, 0, 0, 0.22); border: 2px solid var(--glass-border); display: flex; flex-direction: column; gap: 0.55rem; align-items: center; }
.aj-fondo .aj-tit { font-family: var(--font-display); font-size: 0.95rem; }
.aj-fondo .segmented { justify-content: center; }
.aj-fondo .segmented button { font-size: 0.85rem; padding: 0.45rem 0.75rem; }
@media (max-width: 640px) {
    .panel-opciones { padding: 1.1rem 0.8rem 1rem; }
    .panel-opciones .section-title { font-size: 1.25rem; margin-bottom: 0.7rem; }
    .ajustes-grid { gap: 0.45rem; }
    .ajuste { grid-template-columns: 1fr; grid-template-rows: auto auto auto; text-align: center; justify-items: center; padding: 0.55rem 0.4rem 0.45rem; min-height: 5.6rem; row-gap: 0.1rem; }
    .ajuste .aj-ico { grid-row: auto; font-size: 1.5rem; }
    .ajuste .aj-tit { font-size: 0.8rem; align-self: auto; }
    .ajuste .aj-sub { font-size: 0.66rem; }
    .ajuste .perf-switch { top: 0.5rem; right: 0.5rem; transform: none; width: 2.1rem; height: 1.2rem; }
    .ajuste .perf-switch::after { width: 0.85rem; height: 0.85rem; top: 0.175rem; left: 0.175rem; }
    .ajuste[aria-pressed="true"] .perf-switch::after { transform: translateX(0.9rem); }
    .aj-fondo { margin-top: 0.55rem; padding: 0.6rem 0.4rem; }
    .aj-fondo .segmented { gap: 0.3rem; }
    .aj-fondo .segmented button { font-size: 0.74rem; padding: 0.4rem 0.45rem; min-width: 0; }
}
html.movil .panel-opciones { padding: 1.1rem 0.8rem 1rem; }
html.movil .ajustes-grid { gap: 0.45rem; }
html.movil .ajuste { grid-template-columns: 1fr; grid-template-rows: auto auto auto; text-align: center; justify-items: center; padding: 0.55rem 0.4rem 0.45rem; min-height: 5.6rem; row-gap: 0.1rem; }
html.movil .ajuste .aj-ico { grid-row: auto; font-size: 1.5rem; }
html.movil .ajuste .aj-tit { font-size: 0.8rem; align-self: auto; }
html.movil .ajuste .aj-sub { font-size: 0.66rem; }
html.movil .ajuste .perf-switch { top: 0.5rem; right: 0.5rem; transform: none; width: 2.1rem; height: 1.2rem; }
html.movil .ajuste .perf-switch::after { width: 0.85rem; height: 0.85rem; top: 0.175rem; left: 0.175rem; }
html.movil .ajuste[aria-pressed="true"] .perf-switch::after { transform: translateX(0.9rem); }
html.movil .aj-fondo .segmented button { font-size: 0.74rem; padding: 0.4rem 0.45rem; min-width: 0; }


/* REGLA DE DISEÑO: lo que aparece de golpe no mueve nada. El texto de respuesta («¡Bien! … sí lleva tilde (…)») sale debajo del todo al
   contestar; su sitio se reserva desde que aparece la pregunta, con las líneas que ocupa el texto más largo de cada actividad (medido con
   todas las palabras del juego: ¿Lleva tilde? 2 líneas en escritorio y 3 en móvil; tónica y clasificar 2 en móvil), con la misma
   altura de línea en todos los navegadores. Si no, el tablero repartía de nuevo su contenido y la palabra se movía. */
.answer-note { --lineas: 1; line-height: 1.35; min-height: calc(var(--lineas) * 1.35em + 0.1em); }
.answer-note.nota-tilde { --lineas: 2; }
html.movil .answer-note { min-height: calc(var(--lineas) * 1.35em + 0.1em); }
html.movil .answer-note.nota-tilde { --lineas: 3; }
html.movil .answer-note.nota-tonica, html.movil .answer-note.nota-clasificar { --lineas: 2; }
@media (max-width: 640px) {
    .answer-note { min-height: calc(var(--lineas) * 1.35em + 0.1em); }
    .answer-note.nota-tilde { --lineas: 3; }
    .answer-note.nota-tonica, .answer-note.nota-clasificar { --lineas: 2; }
}


/* Ventana con la respuesta correcta tras un fallo (sin explicación) */
.resp-palabra { font-family: var(--font-word); font-weight: 700; font-size: 2.2rem; color: #f3f6ee; margin: 0.2rem 0 0.4rem; }
.resp-overlay .dialog-message { font-size: 1.05rem; line-height: 1.4; }
.resp-overlay .dialog-message b { color: var(--good); }

/* interruptor suelto dentro de «Explicar los fallos» (Ver la respuesta al fallar): una fila, no una tarjeta de la rejilla */
.aj-interruptor { position: relative; display: flex; align-items: center; gap: 0.7rem; width: 100%; max-width: 30rem; padding: 0.55rem 0.9rem; text-align: left; color: #fff;
    border-radius: 1rem; background: rgba(0, 0, 0, 0.28); border: 2px solid var(--glass-border); }
.aj-interruptor .aj-ico { font-size: 1.6rem; line-height: 1; }
.aj-interruptor .aj-textos { flex: 1 1 auto; display: flex; flex-direction: column; gap: 0.05rem; min-width: 0; }
.aj-interruptor .aj-sub { font-size: 0.74rem; color: var(--text-muted); font-weight: 400; line-height: 1.25; }
.aj-interruptor:hover { border-color: var(--primary-glow); }
.aj-interruptor[aria-pressed="true"] { border-color: var(--secondary); background: rgba(110, 231, 208, 0.1); }
.aj-interruptor[aria-pressed="true"] .aj-tit { color: var(--secondary); }
.aj-interruptor[aria-pressed="true"] .perf-switch { background: var(--secondary); }
.aj-interruptor[aria-pressed="true"] .perf-switch::after { transform: translateX(1.2rem); }
html.movil .aj-interruptor { padding: 0.45rem 0.6rem; gap: 0.5rem; }
html.movil .aj-interruptor .aj-tit { font-size: 0.8rem; }
html.movil .aj-interruptor .aj-sub { font-size: 0.66rem; }

html.movil .aj-fondo .aj-nota { display: none; }      /* en el móvil no cabe sin scroll: lo importante lo dice cada interruptor */
@media (max-width: 640px) {
    .aj-fondo .aj-nota { display: none; }
    .aj-interruptor { padding: 0.45rem 0.6rem; gap: 0.5rem; }
    .aj-interruptor .aj-tit { font-size: 0.8rem; }
    .aj-interruptor .aj-sub { font-size: 0.66rem; }
}

/* La ventana de la respuesta correcta deja ver el juego detrás: fondo mucho menos oscuro que el de las explicaciones */
.resp-overlay { background: rgba(0, 0, 0, 0.32); backdrop-filter: blur(0.12rem); -webkit-backdrop-filter: blur(0.12rem); }
html.ligero .resp-overlay { background: rgba(6, 16, 22, 0.5); }
/* al empezar la partida el tablero solo aparece (sin el encogido de 95 % → 100 % de las demás pantallas): nada se mueve ni «se agita» */
#screen-game > * { transform: none; transition: opacity 0.4s ease; }