/* Secciones de práctica y reproductor EQ: paleta y tipografía de DBQuiz. */
.eq-landing-shell[hidden],main>[hidden],.eq-landing-shell [hidden]{display:none!important}
.eq-home{padding:100px 0 110px;max-width:1120px;margin:auto}
.eq-home .eyebrow,.eq-intro .eyebrow{display:inline-flex;align-items:center;background:var(--purple-soft);color:var(--purple);padding:10px 13px;border-radius:99px;font-size:10px;letter-spacing:.13em}
.eq-home h1,.eq-intro h1{font-size:clamp(58px,7vw,94px);line-height:.95;letter-spacing:-.065em;margin:26px 0 22px}
.eq-home h1 em,.eq-intro h1 em{font-style:normal;color:var(--purple)}
.eq-home-lead>p,.eq-intro-grid>div>p{max-width:540px;color:var(--muted);font-size:17px;line-height:1.65}
.eq-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:40px}
.eq-choice-card{display:flex;align-items:center;gap:18px;min-width:0;width:100%;padding:26px;text-align:left;background:var(--paper);color:var(--text);border:1px solid var(--line);border-radius:18px;box-shadow:0 5px 0 color-mix(in srgb,var(--text) 14%,transparent);cursor:pointer;transition:transform .16s,box-shadow .16s,border-color .16s}
.eq-choice-card:hover{transform:translateY(3px);box-shadow:0 2px 0 color-mix(in srgb,var(--text) 14%,transparent);border-color:var(--purple)}
.eq-choice-card:active{transform:translateY(5px);box-shadow:none}
.eq-choice-card:focus-visible,.eq-back-link:focus-visible,.eq-play:focus-visible,.eq-mode-switch button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.eq-choice-card--teal{background:var(--card)}
.eq-choice-card--teal:hover{border-color:var(--teal)}
.eq-choice-icon{display:grid;place-items:center;flex:none;width:56px;height:56px;background:var(--purple-soft);color:var(--purple);border-radius:14px}
.eq-choice-card--teal .eq-choice-icon{background:color-mix(in srgb,var(--teal) 15%,var(--paper));color:var(--teal)}
.eq-choice-icon svg{width:30px;height:30px}
.eq-choice-copy{display:grid;gap:7px;min-width:0;flex:1}
.eq-choice-copy strong{font-size:19px;line-height:1.2;letter-spacing:-.02em}
.eq-choice-copy small{font-size:13px;line-height:1.5;color:var(--muted)}
.eq-arrow{font-size:20px;font-weight:800;color:var(--purple)}
.eq-choice-card--teal .eq-arrow{color:var(--teal)}
.eq-home .micro{margin-top:46px}
.eq-intro{padding:55px 0 110px}
.shortcuts-back{padding-top:55px}
.shortcuts-back + .hero{padding-top:0}
.eq-back-link{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:8px 15px 8px 11px;margin:0 0 40px;background:var(--paper);border:1px solid var(--line);border-radius:12px;color:var(--text);font:inherit;font-size:15px;font-weight:700;line-height:1.2;box-shadow:0 3px 0 color-mix(in srgb,var(--text) 16%,transparent);cursor:pointer;transition:transform .16s,box-shadow .16s,border-color .16s}
.eq-back-arrow{display:block;width:23px;height:23px;flex:none;color:var(--accent)}
@media(hover:hover){.eq-back-link:hover{transform:translateY(2px);box-shadow:0 1px 0 color-mix(in srgb,var(--text) 20%,transparent);border-color:var(--accent)}}
.eq-back-link:active{transform:translateY(3px);box-shadow:none}
@media(max-width:760px){.shortcuts-back{padding-top:35px}}
@media(prefers-reduced-motion:reduce){.eq-back-link{transition:none}}
.eq-intro-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,460px);align-items:center;gap:70px}
.eq-intro-grid .primary{margin-top:35px}
.eq-intro-steps{display:flex;gap:24px;flex-wrap:wrap;margin-top:26px;color:var(--muted);font-size:12px;font-weight:700}
.eq-intro-steps span{display:inline-flex;align-items:center;gap:7px}
.eq-intro-steps b{color:var(--teal);font-size:11px}
.eq-intro-visual{min-height:355px;background:var(--card);border:1px solid color-mix(in srgb,var(--teal) 22%,var(--line));border-radius:24px;padding:28px 30px;box-shadow:0 24px 60px color-mix(in srgb,var(--teal) 12%,transparent);color:var(--hero-ink)}
.eq-intro-visual strong{display:block;font-size:26px;letter-spacing:-.04em}
.eq-intro-visual p{font-size:13px;color:var(--muted);margin:10px 0 28px}
.eq-art-lines{height:132px;display:flex;align-items:center;justify-content:center;gap:8px;margin:16px 0 18px}
.eq-art-lines i{width:10px;height:var(--h,45%);border-radius:8px;background:var(--teal);opacity:.7}
.eq-art-lines i:nth-child(4n+1){--h:25%}.eq-art-lines i:nth-child(4n+2){--h:58%}.eq-art-lines i:nth-child(4n+3){--h:83%}.eq-art-lines i:nth-child(4n){--h:45%}
.eq-modal-choice .eq-choice-grid{grid-template-columns:1fr;margin-top:16px;gap:12px}
.eq-modal-choice .eq-choice-card{padding:18px}
.eq-modal-choice .eq-choice-icon{width:48px;height:48px}
.eq-modal-choice .eq-choice-copy strong{font-size:16px}
.eq-question-screen .progress{margin-bottom:25px}
.eq-question-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.eq-score{font-weight:800;color:var(--accent);white-space:nowrap;font-size:21px}
.eq-score small{font-size:12px;color:var(--muted)}
.eq-track-label{margin:0 0 8px;color:var(--teal);font-size:10px;font-weight:800;letter-spacing:.12em}
.eq-track-name{font-size:clamp(21px,4vw,27px);line-height:1.2;letter-spacing:-.035em;overflow-wrap:anywhere;margin:0 0 18px}
.eq-player{border:1px solid var(--line);border-radius:14px;background:var(--soft);padding:16px;transition:background-color .24s,border-color .24s,box-shadow .24s}
.eq-player--active{border-color:color-mix(in srgb,var(--purple) 65%,var(--line));background:color-mix(in srgb,var(--purple) 8%,var(--soft));box-shadow:0 0 0 1px color-mix(in srgb,var(--purple) 16%,transparent),0 0 25px color-mix(in srgb,var(--purple) 16%,transparent);animation:eq-player-on .24s ease-out}
@keyframes eq-player-on{from{box-shadow:0 0 0 0 transparent}to{box-shadow:0 0 0 1px color-mix(in srgb,var(--purple) 16%,transparent),0 0 25px color-mix(in srgb,var(--purple) 16%,transparent)}}
.eq-waveform{display:flex;align-items:center;justify-content:space-between;gap:3px;height:76px;overflow:hidden}
.eq-waveform span{height:var(--bar);min-height:3px;flex:1;max-width:5px;border-radius:8px;background:var(--teal);opacity:.74;transform-origin:center;transition:background-color .24s}
.eq-player--active .eq-waveform span{background:var(--purple);opacity:.9}
.eq-waveform.is-playing span{animation:eq-pulse 1s ease-in-out var(--delay) infinite alternate}
@keyframes eq-pulse{from{transform:scaleY(.5);opacity:.55}to{transform:scaleY(1);opacity:1}}
.eq-player-controls{display:flex;align-items:center;gap:12px;margin-top:12px}
.eq-play{display:grid;place-items:center;flex:none;width:43px;height:43px;border:0;border-radius:50%;background:var(--text);color:var(--paper);font-size:16px;cursor:pointer}
.eq-play:disabled{opacity:.5;cursor:wait}
.eq-mode-switch{display:inline-flex;padding:3px;gap:3px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}
.eq-mode-switch button{padding:8px 11px;border:0;border-radius:7px;background:transparent;color:var(--muted);font:inherit;font-size:12px;font-weight:700;cursor:pointer}
.eq-mode-switch button[aria-pressed=true]{background:var(--text);color:var(--paper)}
.eq-mode-switch button:disabled{opacity:.55;cursor:wait}
.eq-player-state{margin-left:auto;font-size:11px;color:var(--muted)}
.eq-error{border-radius:9px;padding:12px;background:var(--purple-soft);color:var(--accent);font-size:13px}
.eq-prompt{font-size:18px;line-height:1.4;margin:24px 0 14px;letter-spacing:-.02em}
.eq-answer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.eq-answer-grid .eq-answer{display:flex;align-items:center;gap:12px;width:100%;margin:0;min-width:0}
.eq-answer-letter{display:grid;place-items:center;width:27px;height:27px;flex:none;border:1px solid var(--line);border-radius:7px;background:var(--soft);font-size:12px;color:var(--muted)}
.eq-answer.selected .eq-answer-letter{background:var(--accent);border-color:var(--accent);color:var(--paper)}
.eq-results-list .notice{display:grid;gap:4px}
.eq-results-list .notice strong{overflow-wrap:anywhere}
.eq-results-list .notice span{color:var(--muted)}
@media(max-width:760px){.eq-home{padding:65px 0 75px}.eq-home h1,.eq-intro h1{font-size:clamp(52px,13vw,76px)}.eq-choice-grid{grid-template-columns:1fr;margin-top:32px}.eq-choice-card{padding:20px}.eq-intro{padding:35px 0 70px}.eq-back-link{margin-bottom:24px}.eq-intro-grid{grid-template-columns:1fr;gap:36px}.eq-intro-visual{min-height:280px}.eq-art-lines{height:100px}.eq-player-state{display:none}}
@media(max-width:380px){.eq-answer-grid{grid-template-columns:1fr}.eq-choice-copy strong{font-size:16px}.eq-choice-card{gap:12px}.eq-player-controls{gap:7px}.eq-mode-switch button{padding:8px}}
@media(prefers-reduced-motion:reduce){.eq-choice-card,.eq-player,.eq-waveform span{transition:none;animation:none!important}}


/* Ayuda para comparar el mismo fragmento en ambos modos. */
.eq-compare-help{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px}
.eq-compare-help p{flex:1;min-width:0;margin:0;color:var(--muted);font-size:12px;line-height:1.4}
.eq-compare-help p strong{color:var(--text)}
.eq-restart{flex:none;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--text);padding:8px 10px;font:inherit;font-size:12px;font-weight:700;cursor:pointer}
.eq-restart:hover{border-color:var(--teal);color:var(--teal)}
.eq-restart:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.eq-restart:disabled{opacity:.5;cursor:wait}
@media(max-width:430px){.eq-compare-help{align-items:flex-start;flex-direction:column;gap:8px}.eq-restart{padding:7px 10px}}

/* Flechas de selección de nivel */
.level-option > .level-arrow,.eq-levels-return > .level-arrow{display:grid;place-items:center;flex:none;width:39px;height:39px;border:1px solid var(--muted);border-radius:50%;background:var(--soft);color:var(--text)}
.level-option > .level-arrow svg,.eq-levels-return > .level-arrow svg{display:block}
.level-option:hover > .level-arrow{border-color:var(--accent)}
.eq-levels-return{display:flex;align-items:center;justify-content:center;gap:10px;padding:8px 14px;min-height:56px}
.eq-levels-return > .level-arrow{width:34px;height:34px}

/* Gráficos de referencia: las tres campanas usan la misma escala. */
.eq-intro-visual.eq-level-visual{min-height:0;padding:24px 26px 22px;background:color-mix(in srgb,var(--paper) 80%,var(--card));color:var(--text)}
.eq-visual-header{display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--muted);font-size:9px;font-weight:800;letter-spacing:.12em}
.eq-visual-header span:last-child{color:var(--teal);letter-spacing:.05em;white-space:nowrap}
.eq-level-visual .eq-visual-deco{display:block;width:100%;height:36px;object-fit:cover;object-position:center;pointer-events:none;margin:6px 0 0}
.eq-level-visual .eq-visual-title{margin:3px 0 19px}
.eq-intro-visual .eq-visual-title strong{font-size:23px;line-height:1.08;letter-spacing:-.04em;color:var(--text)}
.eq-intro-visual .eq-visual-title p{font-size:12px;line-height:1.45;color:var(--muted);margin:8px 0 0}
.eq-curves-list{display:grid;gap:10px}
.eq-curve-card{min-width:0;padding:11px 14px 6px;background:var(--paper);border:1px solid var(--line);border-radius:13px}
.eq-curve-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.eq-curve-top>div{display:flex;align-items:center;gap:9px;min-width:0}
.eq-curve-number{font-size:9px;font-weight:800;letter-spacing:.08em;color:var(--muted)}
.eq-intro-visual .eq-curve-top strong{font-size:14px;line-height:1.3;letter-spacing:-.01em;color:var(--text)}
.eq-curve-value{flex:none;padding:4px 7px;border-radius:6px;background:var(--soft);color:var(--text);font-size:11px;font-weight:800}
.eq-curve-chart{display:block;width:100%;height:auto;margin:5px 0 0;overflow:visible}
.eq-grid-line,.eq-grid-guide{fill:none;stroke:var(--line);stroke-width:1}
.eq-grid-guide{stroke-dasharray:2 4}
.eq-response-boost,.eq-response-cut{fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.eq-response-boost{stroke:var(--purple)}
.eq-response-cut{stroke:var(--teal)}
.eq-curve-point-boost{fill:var(--purple);stroke:var(--paper);stroke-width:1.5}
.eq-curve-point-cut{fill:var(--teal);stroke:var(--paper);stroke-width:1.5}
.eq-chart-labels{fill:var(--muted);font:700 8px system-ui,sans-serif}
.eq-curve-legend{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:16px;color:var(--muted);font-size:11px;font-weight:700}
.eq-curve-legend span{display:inline-flex;align-items:center;gap:6px}
.eq-curve-legend i{display:inline-block;width:14px;height:3px;border-radius:4px}
.eq-legend-boost{background:var(--purple)}
.eq-legend-cut{background:var(--teal)}
.eq-intro-visual .eq-curve-caption{margin:7px 0 0;font-size:10px;line-height:1.45;color:var(--muted)}
@media(max-width:760px){.eq-intro-visual.eq-level-visual{padding:21px 20px 20px}}
@media(max-width:380px){.eq-intro-visual.eq-level-visual{padding:18px 15px}.eq-visual-header{font-size:8px}.eq-curve-card{padding:10px 11px 6px}}


/* Mantener los tres niveles visibles y alineados en pantallas normales. */
.eq-level-visual .eq-visual-deco{height:22px;margin:3px 0 0}
.eq-level-visual .eq-visual-title{margin:3px 0 12px}
.eq-intro-visual .eq-visual-title strong{font-size:19px}
.eq-intro-visual .eq-visual-title p{margin:5px 0 0}
.eq-curves-list{gap:7px}
.eq-curve-card{padding:8px 12px 3px}
.eq-curve-chart{height:58px;margin-top:2px}
.eq-response-boost,.eq-response-cut,.eq-grid-line,.eq-grid-guide{vector-effect:non-scaling-stroke}
.eq-chart-labels{font-size:14px}
.eq-curve-legend{margin-top:10px}
.eq-intro-visual .eq-curve-caption{margin-top:5px}