:root{color-scheme:light;--indigo:#3730a3;--ink:#20184e;--coral:#ee7773;--coral-dark:#b94350;--paper:#fbfaff;--lavender:#eeebf8;--muted:#716b88;--line:#ded9ef}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden}body{font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#e4e1ee;-webkit-font-smoothing:antialiased}button,input,a{font:inherit;-webkit-tap-highlight-color:transparent}button{color:inherit;border:0;cursor:pointer}button:disabled{opacity:.42;cursor:default}a{color:inherit}[hidden]{display:none!important}button:focus-visible,a:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--coral-dark);outline-offset:4px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
#course-root{position:fixed;inset:0;overflow:hidden;background:#e4e1ee}
.course-shell{width:1600px;height:900px;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(var(--fit,1));transform-origin:center;display:grid;grid-template-rows:90px minmax(0,1fr) 74px 106px;background:var(--paper);overflow:hidden;box-shadow:0 4px 50px #21194a15}
.course-header{display:flex;align-items:center;gap:30px;padding:0 48px;z-index:50;position:relative}
.brand{display:flex;align-items:center;gap:15px;text-decoration:none}.brand-symbol{width:50px;height:50px;background:url('assets/pantalla-aprobada.png') no-repeat;background-size:2985.715% auto;background-position:3.527% 2.712%}.brand-type{display:flex;flex-direction:column;gap:5px;text-transform:uppercase}.brand-type>span{font-size:10px;letter-spacing:5.3px}.brand-type>strong{font-size:25px;letter-spacing:3.5px;line-height:1}
.module-label{margin-left:auto;display:flex;gap:20px;align-items:center;font-size:17px}.module-label strong{font-size:14px;color:var(--indigo);text-transform:uppercase;letter-spacing:.5px}.module-label>span{border-left:1px solid #aaa3c6;padding-left:20px}
.soft-button,.primary-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:10px 20px;border-radius:12px;font-weight:600;font-size:18px;background:var(--lavender);color:var(--indigo)}.primary-button{background:var(--indigo);color:white}.primary-button:hover:not(:disabled){background:#251d7d}.soft-button:hover{background:#e0daf3}
.menu-wrap{position:relative}.course-menu{position:absolute;top:58px;right:0;width:370px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 15px 40px #1e174525}.course-menu p{font-size:12px;letter-spacing:2px;color:var(--muted);margin:0 0 14px}.course-menu button{display:block;text-align:left;width:100%;padding:16px 10px;background:transparent;border-radius:10px;font-size:18px}.course-menu button:hover,.course-menu button[aria-pressed=true]{background:var(--lavender)}
.lesson-layout{display:grid;grid-template-columns:310px minmax(0,1fr);gap:32px;min-height:0;padding:10px 48px 0;position:relative}
.guide-area{min-height:0;position:relative;isolation:isolate}.mine-scenery{position:absolute;z-index:-1;inset:40px -20px 10px 58px;background:url('assets/pantalla-aprobada.png') no-repeat;background-size:928.889% auto;background-position:22.252% 78.243%;opacity:.36;mask-image:linear-gradient(transparent,#000 25%,#000 72%,transparent)}
.guide-name{position:absolute;top:48px;left:10px;display:flex;gap:10px;align-items:center;font-size:20px}.guide-name strong{border-bottom:3px solid var(--coral);padding-bottom:7px}.guide-name span{font-size:15px;color:var(--muted)}
.sara-stage{position:absolute;width:350px;height:525px;bottom:15px;left:-27px;transform-origin:50% 95%;visibility:hidden;--mouth-width:6.5%;--mouth-y:1}.sara-stage.ready{visibility:visible}.sara-stage img{display:block;width:100%;height:100%;pointer-events:none;user-select:none}
.sara-mouth{position:absolute;left:46.6%;top:16.7%;width:var(--mouth-width);aspect-ratio:1;transform:translate(-50%,-50%) rotate(9deg) scaleY(var(--mouth-y));background-repeat:no-repeat;background-size:300% 300%;pointer-events:none;visibility:hidden;transition:width 65ms linear,transform 65ms linear}.sara-mouth.is-ready{visibility:visible}
.guide-caption{position:absolute;bottom:0;left:10px;display:flex;align-items:center;gap:7px;margin:0;font-size:13px;color:var(--muted);max-width:290px}.status-dot{width:7px;height:7px;border-radius:50%;background:#9287ba;flex-shrink:0}.is-speaking .status-dot{background:var(--coral)}
.content-stage{position:relative;min-width:0;min-height:0}.base-scene{height:100%;display:grid;grid-template-rows:128px minmax(0,1fr) 55px;gap:9px}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--muted);text-transform:uppercase;margin:0 0 11px}.lesson-heading h1{font-size:49px;line-height:1.08;letter-spacing:-1.7px;margin:0 0 14px}.lesson-intro{font-size:23px;margin:0;line-height:1.3}
.concept-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px;position:relative;min-height:0}.concept-station{position:relative;min-width:0;border-radius:20px;padding:18px 19px 15px;background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;align-items:stretch;transition:background .2s,border-color .2s,box-shadow .2s}.station-step{font-size:22px;color:var(--coral-dark);font-weight:700;display:flex;align-items:center;gap:12px}.station-step>span{font-size:11px;color:var(--muted);letter-spacing:2px}.concept-art,.small-art{background-image:url('assets/pantalla-aprobada.png');background-repeat:no-repeat;background-size:525.786% auto;aspect-ratio:318/255}.concept-art{width:100%;height:210px;margin:10px 0 16px;border-radius:13px;flex-shrink:0;transition:transform .3s,opacity .2s}.indicator-art{background-position:39.4387% 40.8163%}.goal-art{background-position:67.356% 40.8163%}.frequency-art{background-position:95.6425% 40.8163%}.concept-station h2{font-size:32px;letter-spacing:-.6px;margin:0 0 7px}.concept-meaning{font-size:20px;line-height:1.25;min-height:50px;margin:0 0 11px;transition:opacity .2s,transform .2s}.concept-action{display:flex;justify-content:space-between;align-items:center;background:transparent;padding:12px 0 0;border-top:1px solid var(--line);font-size:17px;color:var(--indigo);font-weight:700;margin-top:auto;text-align:left;min-height:42px}.concept-action:hover{text-decoration:underline}.concept-action>span{font-size:23px}.station-link{position:absolute;top:44%;font-size:28px;color:#aca2cf;z-index:2}.first-link{left:calc(33.333% - 13px)}.second-link{left:calc(66.666% - 3px)}
.concept-station.is-focus{border-color:var(--indigo);background:#f2efff;box-shadow:0 0 0 2px var(--indigo)}.concept-station.is-focus .concept-art{transform:translateY(-4px)}.concept-station.is-upcoming .concept-art{opacity:.48}.concept-station.is-upcoming .concept-meaning{opacity:.12;transform:translateY(7px)}.concept-station.is-explore .concept-action{background:var(--indigo);color:#fff;border-radius:9px;padding:11px 13px;border:0}
.visited-tag{position:absolute;top:14px;right:12px;font-size:11px;color:var(--indigo);background:var(--lavender);border-radius:20px;padding:5px 8px}
.scene-prompt{display:flex;justify-content:space-between;align-items:center;gap:15px;font-size:18px}.scene-prompt p{margin:0}.text-button{font-size:16px;font-weight:700;color:var(--indigo);border-bottom:1px solid #a79cce;padding:7px 0;background:transparent;white-space:nowrap}.mobile-concepts{display:none}

.content-layer,.reading-panel,.completion-panel{position:absolute;inset:0;background:#fff;border:1px solid #c8bfe7;border-radius:22px;padding:26px 32px;box-shadow:0 8px 25px #29205c0a;z-index:5;min-height:0}
.content-layer{display:grid;grid-template-rows:70px 38px 52px minmax(0,1fr) 22px;gap:10px}
.layer-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.layer-heading h2{font-size:44px;line-height:1;margin:0;letter-spacing:-1px}.layer-heading .eyebrow{font-size:10px;margin:0 0 9px;letter-spacing:2.5px;color:var(--coral-dark)}.close-button{display:flex;gap:10px;align-items:center;background:transparent;font-size:30px;padding:4px 0 8px 12px;line-height:1;min-width:40px;min-height:40px}.close-button>span{font-size:16px}.layer-definition{font-size:23px;line-height:1.3;margin:0}
.chapter-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;align-self:start}.chapter-tabs button{border:1px solid var(--line);background:#faf8ff;border-radius:10px;min-height:44px;font-size:14px;color:var(--muted);display:flex;align-items:center;justify-content:center;gap:10px}.chapter-tabs button>span{font-size:18px;font-weight:600;color:var(--ink)}.chapter-tabs button[aria-selected=true]{border-color:var(--indigo);background:var(--indigo);color:#d2c9ff}.chapter-tabs button[aria-selected=true]>span{color:#fff}
.infographic-panels{position:relative;min-height:0}.info-panel{height:100%;min-height:0}.interval-panel{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:36px}.interval-picture{position:relative}.layer-art{background:url('assets/capa-aprobada.png') no-repeat;background-size:280.067% auto;background-position:49.2093% 55.4331%;aspect-ratio:597/306;border-radius:15px;width:100%}.question-pill{position:absolute;left:50%;bottom:-18px;transform:translateX(-50%);background:var(--coral);border:5px solid white;border-radius:30px;padding:12px 25px;font-size:22px;font-weight:700;white-space:nowrap}.interval-copy h3{font-size:32px;letter-spacing:-.6px;line-height:1.12;margin:0 0 21px}.intervals{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.intervals span{padding:12px 10px;text-align:center;background:var(--lavender);border:1px solid transparent;border-radius:9px;font-size:19px;transition:background .18s,transform .18s}.intervals .is-current{background:var(--indigo);color:#fff;transform:translateY(-3px)}.intervals .is-mentioned{border-color:#b1a4dd}.support-copy{font-size:18px;line-height:1.35;color:var(--muted);margin:17px 0 0}
.rhythm-panel{display:grid;grid-template-rows:22px minmax(0,1fr) 60px;gap:10px}.rhythm-topline{display:flex;justify-content:space-between;align-items:center}.rhythm-topline .eyebrow{font-size:10px;margin:0;letter-spacing:1.7px}.example-badge{font-size:12px;color:var(--muted)}.rhythm-flow{display:grid;grid-template-columns:1fr 100px 1fr;min-height:0;align-items:stretch}.rhythm-block{border:1px solid var(--line);border-radius:16px;background:#faf8ff;display:flex;flex-direction:column;align-items:center;padding:15px;min-width:0;transition:border-color .2s,background .2s}.rhythm-block:hover{border-color:var(--indigo)}.rhythm-label{font-size:11px;letter-spacing:2px;color:var(--indigo);font-weight:700;margin-bottom:6px}.rhythm-block>strong{font-size:28px;letter-spacing:-.5px}.inspection-series{display:flex;width:100%;justify-content:center;gap:8px;margin:12px 0 8px;height:88px}.record-image{width:77px;height:77px;display:block;background:url('assets/capa-aprobada.png') no-repeat;background-size:1900% auto;background-position:75.1326% 49.4138%;border-radius:50%;transition:transform .25s,opacity .25s}.record-image.is-pending{opacity:.18;transform:translateY(10px) scale(.92)}.review-picture{width:139px;height:92px;display:block;margin:9px 0 7px;background:url('assets/pantalla-aprobada.png') no-repeat;background-size:525.786% auto;background-position:95.6425% 40.8163%;border-radius:8px;transition:opacity .2s,transform .2s}.block-caption{font-size:16px;line-height:1.3;max-width:300px}.detail-affordance{font-size:13px;color:var(--indigo);font-weight:700;margin-top:auto;padding-top:7px}.flow-arrow{align-self:center;display:flex;flex-direction:column;align-items:center;font-size:46px;color:#a69bc7}.flow-arrow>span{font-size:13px;margin-bottom:-7px}.rhythm-block.is-focus,.rhythm-block[aria-pressed=true]{background:#fff4ef;border-color:var(--coral);box-shadow:inset 0 0 0 1px var(--coral)}.review-block.is-pending .review-picture{opacity:.4;transform:scale(.95)}
.insight-ribbon{margin:0;background:var(--lavender);border-radius:11px;padding:13px 20px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:20px;line-height:1.3}
.measure-panel{display:grid;grid-template-rows:minmax(0,1fr) 60px;gap:15px}.measure-comparison{display:grid;grid-template-columns:1fr 80px 1fr;align-items:center}.measure-block{text-align:center}.small-art{width:135px;height:107px;margin:0 auto 10px;border-radius:12px}.measure-block .eyebrow{font-size:11px;margin:0 0 8px}.measure-block h3{font-size:28px;line-height:1.1;margin:0 0 9px;letter-spacing:-.5px}.measure-block>p:last-child{font-size:18px;line-height:1.25;margin:0;color:var(--muted)}.not-equal{font-size:66px;color:var(--coral-dark);text-align:center}
.layer-navigation-hint{font-size:14px;color:var(--muted);margin:0;align-self:end;text-align:center}
.reading-panel{z-index:8;display:grid;grid-template-rows:90px minmax(0,1fr) 58px;gap:22px;padding:40px}.reading-panel #transcript-content{font-size:33px;line-height:1.5;align-self:center;margin:0;max-width:940px}.reading-navigation{display:flex;justify-content:space-between;align-items:center}.reading-navigation>span{font-size:16px;color:var(--muted)}
.completion-panel{z-index:7;display:flex;flex-direction:column;justify-content:center;padding:65px}.completion-panel h2{font-size:52px;letter-spacing:-1.6px;line-height:1.1;margin:12px 0 25px}.completion-panel p{font-size:25px;line-height:1.4;max-width:800px}.completion-panel .eyebrow{font-size:13px}.completion-panel .completion-note{font-size:17px;color:var(--muted)}.completion-panel .primary-button{align-self:flex-start;margin-top:15px}
.caption-slot{padding:0;position:relative;z-index:30;display:flex;align-items:flex-end;justify-content:center;min-height:0}.caption-line{background:#292343;color:white;border-radius:0;padding:9px 32px;display:flex;gap:15px;align-items:center;width:100%;min-height:45px;max-height:54px;font-size:18px;line-height:1.3}.caption-line>span{font-size:10.8px;letter-spacing:1px;text-transform:uppercase;color:#ffb5a9;font-weight:700}.caption-line p{margin:0}.audio-error{position:absolute;inset:8px 48px;background:#fff0e8;border:1px solid #e9b2a9;padding:12px 20px;border-radius:10px;margin:0;font-size:18px}
.course-player{position:relative;z-index:40;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:30px;background:var(--lavender);border-top:1px solid var(--line);padding:18px 48px}
.player-buttons{display:flex;align-items:center;gap:10px}.play-button{width:58px;height:58px;border-radius:50%;background:var(--indigo);color:white;font-size:23px;margin-right:5px}.tool-button{display:flex;align-items:center;justify-content:center;width:40px;height:44px;font-size:29px;background:transparent;border-radius:8px}.tool-button:hover{background:#ded7f0}.cc-button{font-size:15px;font-weight:700;width:35px;height:30px;border:1px solid var(--indigo);border-radius:5px;margin:0 4px}.cc-button[aria-pressed=true]{background:var(--indigo);color:#fff}.transcript-button{font-size:29px;gap:6px;width:70px}.transcript-button>span{font-size:13px}.transcript-button[aria-expanded=true]{background:#d8d0ef}.volume-wrap{display:flex;gap:2px;align-items:center}.volume-wrap input{width:58px;accent-color:var(--indigo);cursor:pointer}
.playback-progress{display:flex;flex-direction:column;gap:15px;min-width:0}.player-context{display:flex;gap:13px;align-items:center;font-size:14px;line-height:1.2}.player-context strong{font-size:16px;white-space:nowrap}.player-context>span:not(.times){color:var(--muted)}.times{margin-left:auto;font-variant-numeric:tabular-nums;font-size:13px;white-space:nowrap}
.seek-control{width:100%;height:6px;margin:0;accent-color:var(--indigo);appearance:none;background:#c9c2de;border-radius:10px;cursor:pointer}.seek-control::-webkit-slider-runnable-track{height:6px;border-radius:10px;background:linear-gradient(to right,var(--indigo) var(--progress,0%),#c9c2de var(--progress,0%))}.seek-control::-webkit-slider-thumb{appearance:none;width:16px;height:16px;border-radius:50%;background:var(--indigo);margin-top:-5px;box-shadow:0 0 0 3px var(--lavender)}.player-navigation{display:flex;gap:10px}.player-navigation .primary-button,.player-navigation .soft-button{font-size:17px;min-height:48px;padding:10px 17px}
.is-speaking:not(.reduced-motion) .sara-stage{animation:breathe 4s ease-in-out infinite}
@keyframes breathe{50%{transform:scaleY(1.0025) rotate(.08deg)}}
.concept-station{min-height:0}
.concept-art{width:249px;height:200px;align-self:center}
.concept-meaning{min-height:30px;margin-bottom:7px}
.scene-enter{animation:scene-enter .28s ease-out}
@keyframes scene-enter{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}
.paused .sara-stage{animation-play-state:paused}.reduced-motion *{animation:none!important;transition:none!important}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* Portrait uses a readable, paged composition instead of shrinking the desktop page. */
.course-shell.portrait{width:450px;height:800px;grid-template-rows:62px minmax(0,1fr) 80px 106px}
.portrait .course-header{padding:0 17px;gap:12px}.portrait .brand{gap:8px}.portrait .brand-symbol{width:32px;height:32px}.portrait .brand-type>span{font-size:6px;letter-spacing:3px}.portrait .brand-type>strong{font-size:17px;letter-spacing:2px}.portrait .module-label{display:none}.portrait .menu-wrap{margin-left:auto}.portrait #menu-toggle{font-size:14px;min-height:34px;padding:7px 10px}.portrait .course-menu{top:42px;width:320px;padding:15px}.portrait .course-menu button{font-size:16px;padding:14px 8px}
.portrait .lesson-layout{grid-template-columns:1fr;grid-template-rows:78px minmax(0,1fr);gap:6px;padding:0 16px}.portrait .guide-area{overflow:hidden;border-bottom:1px solid var(--line);border-radius:12px;background:#f1edf9}.portrait .mine-scenery{display:none}.portrait .guide-name{left:18px;top:12px;font-size:21px;gap:8px}.portrait .guide-name span{font-size:13px}.portrait .guide-caption{font-size:11px;bottom:13px;left:18px;max-width:210px}.portrait .sara-stage{width:153px;height:229.5px;left:auto;right:-4px;bottom:auto;top:-5px}
.portrait .base-scene{grid-template-rows:94px minmax(0,1fr) 35px 35px;gap:8px}.portrait .lesson-heading .eyebrow{font-size:8px;letter-spacing:1px;margin:5px 0 6px}.portrait .lesson-heading h1{font-size:28px;letter-spacing:-.8px;line-height:1.04;margin:0 0 8px}.portrait .lesson-intro{font-size:14px;line-height:1.25;max-width:390px}
.portrait .concept-grid{display:block}.portrait .concept-station{position:absolute;inset:0;display:none;padding:12px 17px;border-radius:15px;grid-template-columns:46% 1fr;grid-template-rows:30px 1fr 48px;column-gap:16px;align-items:center}.portrait .concept-station.mobile-active{display:grid}.portrait .station-step{grid-column:1/-1;font-size:18px;align-self:start}.portrait .station-step>span{font-size:10px}.portrait .concept-art{grid-row:2/4;width:100%;height:auto;aspect-ratio:318/255;margin:0}.portrait .concept-station h2{font-size:28px;margin:0;align-self:end}.portrait .concept-meaning{grid-column:2;font-size:16px;line-height:1.3;min-height:0;margin:0;align-self:start}.portrait .concept-action{grid-column:1/-1;min-height:35px;font-size:15px;padding:9px 0 0}.portrait .station-link{display:none}.portrait .visited-tag{font-size:10px;top:10px}.portrait .mobile-concepts{display:flex;gap:6px}.portrait .mobile-concepts button{flex:1;background:#ece7f6;border:1px solid transparent;color:var(--indigo);border-radius:8px;font-size:13px;padding:5px}.portrait .mobile-concepts button[aria-pressed=true]{border-color:var(--indigo);background:white;font-weight:700}.portrait .scene-prompt{font-size:12px;line-height:1.3;gap:10px}.portrait .scene-prompt p{max-width:310px}.portrait .text-button{font-size:12px}.portrait .concept-station.is-upcoming .concept-meaning{opacity:.7}
.portrait .content-layer,.portrait .reading-panel,.portrait .completion-panel{padding:16px;border-radius:16px}
.portrait .content-layer{grid-template-rows:49px 38px 40px minmax(0,1fr) 18px;gap:8px}.portrait .layer-heading h2{font-size:30px;letter-spacing:-.6px}.portrait .layer-heading .eyebrow{font-size:8px;margin-bottom:6px}.portrait .close-button{font-size:28px;min-height:32px;padding:0 0 5px 8px}.portrait .close-button>span{display:none}.portrait .layer-definition{font-size:16px;line-height:1.25}.portrait .chapter-tabs{gap:6px}.portrait .chapter-tabs button{min-height:35px;font-size:10px;gap:5px;border-radius:8px}.portrait .chapter-tabs button>span{font-size:13px}.portrait .layer-navigation-hint{font-size:10px}
.portrait .interval-panel{grid-template-columns:1fr;grid-template-rows:110px 1fr;gap:10px}.portrait .interval-picture{width:195px;justify-self:center;align-self:start}.portrait .question-pill{font-size:15px;padding:5px 15px;bottom:-12px;border-width:3px}.portrait .interval-copy .eyebrow,.portrait .interval-copy h3{display:none}.portrait .intervals{gap:6px}.portrait .intervals span{font-size:15px;padding:8px}.portrait .support-copy{font-size:12px;margin:8px 0 0;text-align:center}
.portrait .rhythm-panel{grid-template-rows:18px minmax(0,1fr) 50px;gap:7px}.portrait .rhythm-topline .eyebrow{font-size:8px;letter-spacing:.5px}.portrait .example-badge{display:none}.portrait .rhythm-flow{grid-template-columns:1fr 30px 1fr}.portrait .rhythm-block{padding:10px 7px;border-radius:11px}.portrait .rhythm-label{font-size:8px;letter-spacing:1.1px}.portrait .rhythm-block>strong{font-size:18px;line-height:1.1;min-height:40px}.portrait .inspection-series{height:47px;gap:2px;margin:6px 0}.portrait .record-image{width:38px;height:38px}.portrait .review-picture{width:68px;height:45px;margin:6px 0 8px}.portrait .block-caption{font-size:11px;line-height:1.2}.portrait .detail-affordance{font-size:10px;padding-top:5px}.portrait .flow-arrow{font-size:29px}.portrait .flow-arrow>span{display:none}.portrait .insight-ribbon{font-size:13px;padding:8px 10px;line-height:1.25}.portrait .measure-panel{grid-template-rows:minmax(0,1fr) 50px;gap:8px}.portrait .measure-comparison{grid-template-columns:1fr 33px 1fr}.portrait .small-art{width:85px;height:68px;margin-bottom:12px}.portrait .measure-block .eyebrow{font-size:8px;letter-spacing:.6px;margin-bottom:8px}.portrait .measure-block h3{font-size:19px;margin-bottom:8px;min-height:42px}.portrait .measure-block>p:last-child{font-size:12px;line-height:1.2}.portrait .not-equal{font-size:35px}
.portrait .caption-slot{padding:0}.portrait .caption-line{font-size:13.5px;line-height:1.25;min-height:54px;max-height:63px;padding:7.2px 16px;gap:9px}.portrait .caption-line>span{font-size:8.1px}.portrait .audio-error{inset:5px 16px;font-size:13px;padding:10px}
.portrait .course-player{padding:11px 16px;gap:10px 12px;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:30px 44px}.portrait .playback-progress{grid-column:1/-1;grid-row:1;gap:9px}.portrait .player-context{font-size:10px;gap:8px}.portrait .player-context strong{font-size:11px}.portrait .times{font-size:10px}.portrait .seek-control{height:4px}.portrait .player-buttons{gap:4px}.portrait .play-button{width:39px;height:39px;font-size:16px;margin:0}.portrait .tool-button{width:29px;height:34px;font-size:24px}.portrait .cc-button{font-size:11px;width:26px;height:25px;margin:0 3px}.portrait .volume-wrap input{width:34px}.portrait .volume-wrap{gap:0}.portrait .transcript-button{width:29px}.portrait .transcript-button>span{display:none}.portrait .fullscreen-button{font-size:24px}.portrait .player-navigation{gap:5px}.portrait .player-navigation .primary-button,.portrait .player-navigation .soft-button{font-size:11px;padding:8px 10px;min-height:35px;border-radius:8px}.portrait .player-navigation .primary-button>span{display:none}.portrait .player-navigation:has(#back-to-base:not([hidden])) #continue-demo{display:none}
.portrait .reading-panel{grid-template-rows:60px minmax(0,1fr) 42px;gap:12px}.portrait .reading-panel #transcript-content{font-size:22px;line-height:1.4}.portrait .reading-navigation{gap:5px}.portrait .reading-navigation .soft-button{font-size:13px;min-height:36px;padding:8px 12px}.portrait .reading-navigation>span{font-size:12px}
.portrait .completion-panel{padding:25px}.portrait .completion-panel h2{font-size:30px;letter-spacing:-.8px;margin:15px 0}.portrait .completion-panel p{font-size:19px}.portrait .completion-panel .eyebrow{font-size:10px}.portrait .completion-panel .completion-note{font-size:14px}.portrait .completion-panel .primary-button{font-size:16px}
.portrait .concept-station{grid-template-rows:24px 1fr 1fr 36px}
.portrait .concept-station h2{grid-column:2;grid-row:2}
.portrait .concept-meaning{grid-column:2;grid-row:3}
.portrait .concept-action{grid-row:4}
.review-picture{width:115px}
.portrait .review-picture{width:56px}
.layer-heading h2{line-height:1.1}

/* v3: edge-to-edge stage, registered facial artwork and an audio-driven infographic. */
.course-shell{left:0;top:0;transform:scale(var(--fit,1));transform-origin:top left;box-shadow:none}
.lesson-layout{grid-template-columns:340px minmax(0,1fr);gap:28px;padding-left:32px;padding-right:32px}
.course-header{padding:0 32px}.caption-slot{padding-left:0;padding-right:0}.course-player{padding-left:32px;padding-right:32px}
.guide-name{top:16px;left:20px;display:flex;flex-direction:column;align-items:flex-start;gap:5px;line-height:1}
.guide-name strong{font-size:25px;border:0;padding:0}.guide-name span{font-size:13px;letter-spacing:.8px;color:var(--muted)}
.guide-name:after{content:'';display:block;width:28px;height:3px;background:var(--coral);margin-top:5px;border-radius:3px}
.sara-stage{width:auto;height:calc(100% - 16px);max-height:710px;aspect-ratio:2/3;left:calc(50% - 12px);bottom:0;transform:translateX(-50%);--body-y:0px;--body-tilt:0deg;--head-tilt:0deg;--arm-tilt:0deg}
.is-speaking:not(.reduced-motion) .sara-stage{animation:none}
.sara-rig{position:absolute;inset:0;transform-origin:43% 96%;transform:translateY(var(--body-y)) rotate(var(--body-tilt))}
.sara-body{clip-path:polygon(0 20%,35% 20%,35% 24%,49% 24%,49% 21%,55% 21%,55% 22.8%,58.2% 29%,58.5% 39.4%,61.5% 42%,100% 42%,100% 100%,0 100%)}
.sara-arm{position:absolute;inset:0;clip-path:polygon(55% 22.7%,100% 22.7%,100% 42%,61.4% 42%,58.4% 39.4%,58.1% 29%);transform-origin:56% 24%;transform:rotate(var(--arm-tilt))}
.sara-head{position:absolute;left:23.8%;top:.45%;width:34.4%;aspect-ratio:414/420;background:url('assets/sara-expresiones-v3.png') no-repeat;background-size:301.20773% 300.2381%;transform-origin:51% 89%;transform:rotate(var(--head-tilt))}
.ground-shadow{position:absolute;left:12%;bottom:.25%;width:54%;height:3.5%;border-radius:50%;background:radial-gradient(ellipse,#bab6ca75 0%,#d9d6e75c 45%,#e4e1ee00 73%);transform:scaleX(1.22)}
.mine-scenery{inset:40px -12px 0 -80px;opacity:.24;mask-image:linear-gradient(90deg,transparent,#000 21%,#000 85%,transparent),linear-gradient(transparent,#000 25%,#000 72%,transparent);mask-composite:intersect}
.interval-panel{display:block;position:relative;overflow:hidden}
.interval-intro{position:absolute;inset:0;display:grid;grid-template-columns:42% 1fr;align-items:center;gap:24px;padding:0 36px;will-change:opacity,transform}
.intro-visual{position:relative;display:grid;place-items:center;min-height:0;height:100%;max-height:300px}
.interval-icon{display:block;background-image:url('assets/intervalos-v3.png');background-repeat:no-repeat;background-size:300% 200%;aspect-ratio:1;pointer-events:none;flex-shrink:0}
.icon-hours{background-position:0 0}.icon-shifts{background-position:50% 0}.icon-days{background-position:100% 0}.icon-weeks{background-position:0 100%}.icon-months{background-position:50% 100%}.icon-years{background-position:100% 100%}
.intro-visual .interval-icon{width:260px;max-width:100%;z-index:1}
.intro-orbit{position:absolute;width:280px;max-width:95%;aspect-ratio:1;border:1px dashed #c6bedc;border-radius:50%;background:radial-gradient(ellipse,#eeebf870,transparent 70%);z-index:0}
.intro-question h3{font-size:50px;line-height:1.06;letter-spacing:-1.6px;margin:0 0 20px}.intro-question>.eyebrow{color:var(--coral-dark)}
.intro-actions{display:flex;align-items:center;gap:12px;font-size:23px;font-weight:700;margin-bottom:15px}.intro-actions span:not([aria-hidden]){padding:9px 15px;border-radius:10px;background:var(--lavender)}.intro-actions .is-current{background:var(--indigo)!important;color:white;box-shadow:0 5px 15px #3730a31c}
.intro-question>p:not(.eyebrow){font-size:20px;line-height:1.4;color:var(--muted);margin:0 0 15px}.intro-question .text-button{font-size:15px}
.interval-catalog{height:100%;display:grid;grid-template-rows:22px minmax(0,1fr) 62px;gap:12px}
.catalog-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.catalog-heading .eyebrow{font-size:10px;margin:0;letter-spacing:1.5px}.catalog-heading>span{font-size:12px;color:var(--muted)}
.interval-options{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;align-items:center;min-height:0;padding:9px 3px}
.interval-card{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:0;height:100%;max-height:220px;padding:12px 8px;border:1px solid var(--line);background:#faf8ff;border-radius:17px;transform:translateY(var(--enter-y,0px)) scale(var(--card-scale,1));opacity:var(--card-opacity,1);will-change:transform,opacity}
.interval-card .interval-icon{width:clamp(80px,7.3vw,138px);max-width:100%;transform:translateY(var(--float-y,0px))}.interval-card strong{font-size:21px;line-height:1.2;margin:6px 0 9px}.interval-card-hint{font-size:11px;white-space:nowrap;color:var(--muted)}
.interval-card:hover{border-color:var(--indigo);background:#f1edff}.interval-card.is-current{border-color:var(--coral);background:#fff2ed;box-shadow:0 7px 20px #ee77731c}.interval-card.is-current strong{color:#a33c49}.interval-card[aria-pressed=true]{border-color:var(--indigo);background:#eeebff;box-shadow:inset 0 0 0 1px var(--indigo)}
.interval-insight{position:relative;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:9px 40px 9px 20px;border-radius:12px;background:#f2eff9;min-height:0}.insight-label{font-size:10px;letter-spacing:1.4px;font-weight:700;color:var(--indigo)}.interval-insight p{font-size:18px;line-height:1.2;margin:0}.interval-insight.is-conclusion{background:#fff1eb}.interval-insight.is-selected{background:#eeebff}.detail-close{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:28px;height:30px;background:transparent;font-size:26px}
.portrait .lesson-layout{padding:0 16px;grid-template-columns:1fr;grid-template-rows:85px minmax(0,1fr);gap:7px}
.portrait .guide-name{left:18px;top:16px;gap:5px}.portrait .guide-name strong{font-size:22px}.portrait .guide-name span{font-size:12px}.portrait .guide-name:after{margin-top:2px;width:24px}
.portrait .sara-stage{width:171px;height:256.5px;left:auto;right:3px;top:-5px;bottom:auto;transform:none}.portrait .ground-shadow{display:none}
.portrait .interval-panel{display:block}.portrait .interval-intro{grid-template-columns:38% 1fr;padding:0 3px;gap:12px}.portrait .intro-visual{max-height:170px}.portrait .intro-visual .interval-icon{width:145px}.portrait .intro-orbit{width:140px}.portrait .intro-question .eyebrow{font-size:7px;letter-spacing:.6px;margin-bottom:9px}.portrait .intro-question h3{font-size:28px;letter-spacing:-.8px;margin-bottom:12px}.portrait .intro-actions{font-size:14px;gap:4px;margin-bottom:10px}.portrait .intro-actions span:not([aria-hidden]){padding:7px 8px;border-radius:7px}.portrait .intro-question>p:not(.eyebrow){font-size:13px;margin-bottom:8px}.portrait .intro-question .text-button{font-size:12px}
.portrait .interval-catalog{grid-template-rows:18px minmax(0,1fr) 54px;gap:6px}.portrait .catalog-heading .eyebrow{font-size:7px;letter-spacing:.7px}.portrait .catalog-heading>span{font-size:8px}
.portrait .interval-options{grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));gap:6px;padding:3px}.portrait .interval-card{padding:5px 4px;border-radius:10px;max-height:none;overflow:hidden}.portrait .interval-card .interval-icon{width:70px;max-height:calc(100% - 25px);flex:0 1 auto;background-size:300% 200%;min-height:0}.portrait .interval-card strong{font-size:14px;margin:2px 0}.portrait .interval-card-hint{display:none}.portrait .interval-insight{padding:7px 27px 7px 10px;gap:3px;border-radius:8px}.portrait .insight-label{font-size:7px;letter-spacing:.7px}.portrait .interval-insight p{font-size:12px;line-height:1.2}.portrait .detail-close{right:3px;font-size:22px;width:22px}
.sara-head{clip-path:inset(0 0 0 9.5%)}
.interval-card .interval-icon{width:140px;clip-path:inset(3% 4% 3% 4%)}
.portrait .interval-card{display:grid;grid-template-rows:minmax(0,1fr) 20px;justify-items:center}.portrait .interval-card .interval-icon{width:auto;height:100%;max-height:88px;max-width:100%;aspect-ratio:1;align-self:center;justify-self:center;min-height:0}
/* v4: continuous head/neck drawing; local facial regions and a jointed gesture. */
.sara-body{clip-path:polygon(0 0,100% 0,100% 22.7%,55% 22.7%,58.2% 29%,58.5% 39.4%,61.5% 42%,100% 42%,100% 100%,0 100%)}
.sara-arm-rig{position:absolute;inset:0;transform-origin:56% 24%;transform:rotate(var(--arm-tilt,0deg))}
.sara-arm{transform:none;clip-path:polygon(55% 22.7%,62.5% 30%,65% 34.8%,71% 37.5%,68% 40.7%,61.4% 42%,58.4% 39.4%,58.1% 29%)}
.sara-forearm{position:absolute;inset:0;clip-path:polygon(63% 34%,70.5% 32.5%,81% 27%,97% 26%,98% 33%,78% 38%,71% 40.8%,64% 40%);transform-origin:65.5% 36.5%;transform:rotate(var(--forearm-tilt,0deg))}
.sara-eyes,.sara-lips{position:absolute;background-image:url('assets/sara-expresiones-v3.png');background-repeat:no-repeat;pointer-events:none}
.sara-lips{left:42.18%;top:14.73%;width:8.96%;height:3.87%;background-size:1154.62963% 1801.42857%;mask-image:radial-gradient(ellipse at center,#000 48%,#000c 66%,transparent 77%)}
.sara-eyes{left:37.40%;top:9.59%;width:15.77%;height:4.87%;background-size:656.31579% 1432.95455%;mask-image:radial-gradient(ellipse at center,#000 54%,#000c 69%,transparent 81%)}
.sara-eyes-closed{opacity:0}
.concept-action{font-size:13px;font-weight:400;color:#716b88;min-height:34px;border-top:0;padding:8px 0 0;justify-content:flex-start;gap:9px}
.concept-action>span{font-size:16px;color:#82749f}.concept-action:hover{color:var(--indigo)}
.concept-station.is-explore .concept-action{background:transparent;color:var(--indigo);padding:8px 0 0;border-radius:0;font-weight:400}
.portrait .concept-action{font-size:12px;min-height:30px;padding-top:7px}
.detail-affordance,.interval-card-hint{font-weight:400;color:var(--muted)}
/* v4: two process rhythms and a visual distinction between measure and time. */
.quiet-action{background:transparent;color:#716b88;font-size:12px;line-height:1.2;padding:6px 0;text-align:left;font-weight:400;min-height:28px}.quiet-action:hover{color:var(--indigo);text-decoration:underline}.quiet-hint{font-size:11px;color:var(--muted);font-weight:400;margin-top:7px}
.learning-art{display:block;aspect-ratio:1;background-image:url('assets/conceptos-v4.png');background-size:200% 200%;background-repeat:no-repeat;clip-path:inset(4%);flex-shrink:0}.art-inspection{background-position:0 0}.art-monthly{background-position:100% 0}.art-percentage{background-position:0 100%}.art-ratio{background-position:100% 100%}
.rhythm-panel{grid-template-rows:25px minmax(0,1fr) 58px;gap:10px}.rhythm-topline{gap:14px}.rhythm-topline .eyebrow{font-size:10px;letter-spacing:1.1px}
.process-workspace{position:relative;min-height:0;display:grid;grid-template-columns:1.1fr .26fr 1fr;gap:5px;align-items:stretch}
.process-node{min-width:0;min-height:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:transparent;border:1px solid transparent;border-radius:18px;padding:6px 12px;position:relative}
.process-node>strong{font-size:28px;line-height:1.15;letter-spacing:-.5px;font-weight:700}.process-node .rhythm-label{color:var(--coral-dark);font-size:10px;margin-bottom:5px}.process-node:hover{background:#f8f6fc}.process-node.is-focus,.process-node[aria-pressed=true]{background:#f4f0fd;border-color:#e1d9f2}.process-caption{font-size:16px;line-height:1.25}
.record-strip{display:flex;align-items:center;justify-content:center;gap:7px;width:100%;height:130px;margin:7px 0;position:relative}.record-strip:after{content:'';height:2px;position:absolute;left:10%;right:10%;bottom:12px;background:#e2dcee;z-index:-1}.inspection-record{position:relative;display:block;width:100px;height:112px;opacity:var(--pose-opacity,1);transform:translateY(var(--pose-y,0px)) scale(var(--pose-scale,1))}.inspection-record .learning-art{width:100%;height:auto}.inspection-record b{position:absolute;right:9px;bottom:14px;color:var(--indigo);border:2px solid #fff;background:#e7e1f8;border-radius:50%;font-size:13px;width:23px;height:23px;display:grid;place-items:center;opacity:0}.inspection-record.is-checked b{opacity:1}
.process-bridge{align-self:center;position:relative;display:flex;align-items:center;justify-content:center;height:44px;margin-top:10px;color:#9e91bd}.process-bridge>span{position:absolute;top:-11px;white-space:nowrap;font-size:11px;color:var(--muted)}.process-bridge>b{font-size:29px;font-weight:400;z-index:1}.process-line{position:absolute;height:2px;left:-10px;right:-10px;top:50%;background:#d6cce9;transform:scaleX(var(--link-progress,0));transform-origin:left}
.monthly-visual{position:relative;width:175px;height:130px;margin:7px 0;opacity:var(--pose-opacity,1);transform:translateY(var(--pose-y,0px)) scale(var(--pose-scale,1))}.monthly-visual .learning-art{width:160px;height:160px;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}.month-stamp{position:absolute;bottom:3px;left:50%;transform:translateX(-50%);white-space:nowrap;background:#fff0e9;color:#9b3d49;padding:5px 8px;border:1px solid #edb6b0;border-radius:6px;font-size:9px;letter-spacing:1px;font-weight:700;opacity:0}.month-stamp.is-visible{opacity:1}
.flying-record{position:absolute;width:66px;height:66px;left:var(--flight-x,30%);top:calc(50% - 20px);opacity:var(--flight-opacity,0);transform:translate(-50%,-50%) translateY(var(--flight-y,0px)) rotate(var(--flight-turn,0deg));pointer-events:none;filter:drop-shadow(0 4px 4px #3a276b12);z-index:3}
.rhythm-panel .insight-ribbon{font-size:19px;background:#f3f0fa;border:1px solid transparent}.rhythm-panel .insight-ribbon.is-conclusion{background:#fff3ed;border-color:#f7d5cb}
.measure-panel{display:block;position:relative}.measure-story{display:grid;grid-template-rows:minmax(0,1fr) 58px;height:100%;gap:8px}.result-comparison{display:grid;grid-template-columns:1.2fr 65px 1fr;align-items:center;min-height:0}.result-field{min-height:0;text-align:center;border:1px solid transparent;border-radius:18px;padding:10px 12px}.result-field>.eyebrow{font-size:10px;letter-spacing:1px;margin:0 0 6px}.result-field h3{font-size:25px;letter-spacing:-.5px;margin:10px 0 0;line-height:1.1}.result-field.is-focus{background:#f5f1fc;border-color:#e0d8ee}.result-formats{display:flex;justify-content:center;gap:22px}.result-token{display:flex;flex-direction:column;align-items:center;gap:3px;opacity:var(--pose-opacity,1);transform:translateY(var(--pose-y,0px)) scale(var(--pose-scale,1))}.result-token .learning-art,.result-token .interval-icon{width:118px;height:118px}.result-token>strong{font-size:16px;font-weight:400;color:var(--muted)}.measure-divider{text-align:center;font-size:58px;color:var(--coral-dark);opacity:var(--pose-opacity,1);transform:scale(var(--pose-scale,1))}.measure-summary{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:10px 4px}.measure-summary p{margin:0;font-size:17px;line-height:1.3}.measure-summary .quiet-action{white-space:nowrap;color:var(--indigo);font-size:13px}.measure-summary.is-conclusion{border-top-color:var(--coral)}
.measure-practice{height:100%;display:grid;grid-template-rows:24px 38px minmax(0,1fr) 55px 35px;gap:7px}.practice-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.practice-heading>span{font-size:10px;letter-spacing:1.3px;color:var(--coral-dark)}.measure-practice h3{font-size:27px;margin:0;text-align:center;line-height:1.2;align-self:center;letter-spacing:-.5px}.practice-choices{display:grid;grid-template-columns:1fr 1fr;gap:18px;min-height:0}.practice-choices button{display:flex;align-items:center;justify-content:center;gap:16px;background:#faf8ff;border:1px solid var(--line);border-radius:14px;min-height:0;padding:8px 15px}.practice-choices button:hover{border-color:var(--indigo);background:#f1edff}.practice-choices .learning-art,.practice-choices .interval-icon{width:72px;height:72px}.practice-choices strong{font-size:21px;line-height:1.15;font-weight:600}.practice-choices button.is-correct{border-color:var(--indigo);background:#ece8fa}.practice-choices button.is-incorrect{border-color:#d9a1a0;background:#fff3ef}.practice-choices button:disabled{opacity:1}.practice-feedback{margin:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:7px 15px;border-radius:10px;background:#f1edf8;font-size:17px;line-height:1.25}.practice-feedback.is-incorrect{background:#fff0eb}.practice-navigation{display:flex;align-items:center;justify-content:space-between}.practice-navigation>span{font-size:17px;letter-spacing:4px;color:var(--indigo)}.practice-navigation .soft-button{min-height:32px;font-size:13px;padding:7px 15px}
.portrait .rhythm-panel{grid-template-rows:25px minmax(0,1fr) 52px;gap:6px}.portrait .rhythm-topline .eyebrow{font-size:7px;letter-spacing:.4px;max-width:190px}.portrait .quiet-action{font-size:9px;min-height:25px}.portrait .process-workspace{grid-template-columns:1.1fr 22px 1fr;gap:0}.portrait .process-node{padding:6px 4px;border-radius:12px}.portrait .process-node>strong{font-size:18px;line-height:1.1;min-height:36px}.portrait .process-node .rhythm-label{font-size:8px;letter-spacing:1px}.portrait .record-strip{height:80px;gap:0;margin:4px 0}.portrait .inspection-record{width:46px;height:65px}.portrait .inspection-record b{width:16px;height:16px;font-size:9px;right:0;bottom:11px}.portrait .process-caption{font-size:11px;line-height:1.2;min-height:27px}.portrait .quiet-hint{font-size:8px;margin-top:5px}.portrait .process-bridge>span{display:none}.portrait .process-bridge>b{font-size:23px}.portrait .process-line{left:0;right:0}.portrait .monthly-visual{width:105px;height:80px;margin:4px 0}.portrait .monthly-visual .learning-art{width:100px;height:100px}.portrait .month-stamp{font-size:6px;letter-spacing:.4px;padding:3px 4px;bottom:0}.portrait .flying-record{width:35px;height:35px}.portrait .rhythm-panel .insight-ribbon{font-size:12px;padding:7px 9px}
.portrait .measure-panel{display:block}.portrait .measure-story{grid-template-rows:minmax(0,1fr) 59px;gap:5px}.portrait .result-comparison{grid-template-columns:1.13fr 28px 1fr}.portrait .result-field{padding:7px 4px;border-radius:11px}.portrait .result-field>.eyebrow{font-size:7px;letter-spacing:.35px;line-height:1.25;min-height:21px;margin-bottom:4px}.portrait .result-formats{gap:2px}.portrait .result-token .learning-art,.portrait .result-token .interval-icon{width:64px;height:64px}.portrait .result-token>strong{font-size:10px;line-height:1.15}.portrait .result-field h3{font-size:17px;line-height:1.1;margin:9px 0 0;min-height:36px}.portrait .measure-divider{font-size:30px}.portrait .measure-summary{gap:9px;padding:7px 3px}.portrait .measure-summary p{font-size:11px;line-height:1.25}.portrait .measure-summary .quiet-action{font-size:10px;max-width:93px;white-space:normal}
.portrait .measure-practice{grid-template-rows:20px 33px minmax(0,1fr) 53px 29px;gap:5px}.portrait .practice-heading>span{font-size:7px;letter-spacing:.7px}.portrait .measure-practice h3{font-size:18px;line-height:1.1}.portrait .practice-choices{gap:8px}.portrait .practice-choices button{padding:5px;gap:5px;border-radius:10px;flex-direction:column}.portrait .practice-choices .learning-art,.portrait .practice-choices .interval-icon{width:37px;height:37px}.portrait .practice-choices strong{font-size:12px;line-height:1.15}.portrait .practice-feedback{font-size:11px;line-height:1.2;padding:5px 8px;border-radius:8px}.portrait .practice-navigation>span{font-size:13px;letter-spacing:2px}.portrait .practice-navigation .soft-button{font-size:11px;min-height:27px;padding:5px 9px}
.inspection-record{width:118px;height:130px}.monthly-visual .learning-art{width:180px;height:180px}
.result-token .learning-art,.result-token .interval-icon{width:140px;height:140px}.result-token .interval-icon,.practice-choices .interval-icon{clip-path:inset(4%)}
.portrait .process-node{padding-top:3px;padding-bottom:3px}.portrait .quiet-hint{margin-top:3px}
.portrait .record-strip{height:65px}.portrait .inspection-record{height:52px}
.monthly-visual .learning-art,.portrait .monthly-visual .learning-art{height:100%;width:auto;aspect-ratio:1;max-width:100%}

/* v5: content first. Interaction cues sit in corners, outside the reading order. */
:root{--orange:#ed8a67;--orange-ink:#a3452c;--warm-paper:#fff2eb;--warm-line:#f4c8b8}
.base-scene{grid-template-rows:128px minmax(0,1fr)}
.content-layer{grid-template-rows:70px 38px 52px minmax(0,1fr)}
.concept-station{padding-bottom:27px}
.concept-art{width:min(100%,320px);height:auto;aspect-ratio:318/255}
.concept-meaning{margin-bottom:0;min-height:0}
.concept-action,.concept-station.is-explore .concept-action,.portrait .concept-action{position:absolute;inset:0;grid-area:auto;z-index:2;display:block;width:100%;height:100%;min-height:0;margin:0;padding:0;border:0;border-radius:inherit;background:transparent;text-decoration:none}
.interaction-mark,.concept-action>.interaction-mark{position:absolute;right:12px;bottom:12px;display:grid;place-items:center;width:23px;height:23px;border:1px solid #d9d0e4;border-radius:50%;font-size:15px;font-weight:400;line-height:1;color:#7d7094;background:#ffffffb3;opacity:.65;transition:opacity .16s,color .16s,border-color .16s,transform .16s;pointer-events:none}
button:hover>.interaction-mark,button:focus-visible>.interaction-mark{opacity:1;color:var(--indigo);border-color:var(--indigo);transform:translateY(-1px)}
.concept-station:has(.concept-action:hover){border-color:#a298ca}
.concept-station:has(.concept-action:focus-visible){outline:3px solid var(--indigo);outline-offset:3px}
.concept-station.is-focus{box-shadow:inset 0 4px 0 var(--orange);border-color:#b7aad7;background:#f5f2fc}
.concept-station.is-explore{border-color:var(--line);background:#fff}
.concept-station.is-explore .interaction-mark{border-color:#c5bfdc;color:var(--indigo);opacity:1}
.station-step{color:var(--orange-ink)}
.visited-tag{width:23px;height:23px;display:grid;place-items:center;padding:0;font-size:12px;pointer-events:none}
.intro-actions .is-current{background:var(--warm-paper)!important;color:var(--orange-ink);box-shadow:inset 0 -2px 0 var(--orange)}
.intro-orbit{border-color:var(--warm-line);background:radial-gradient(ellipse,#fff1e7b3,transparent 70%)}
.interval-card{padding-bottom:20px}
.interval-card>.interaction-mark{right:6px;bottom:6px;width:18px;height:18px;font-size:13px}
.interval-card strong{margin-bottom:6px}
.interval-card.is-current{border-color:var(--orange);background:var(--warm-paper);box-shadow:0 7px 20px #ed8a671a}
.interval-card.is-current strong{color:var(--orange-ink)}
.process-node{padding-bottom:18px}
.process-node.is-focus{background:var(--warm-paper);border-color:var(--warm-line)}
.process-node[aria-pressed=true]{border-color:#c3b7df;background:#f4f0fd}
.process-node .rhythm-label{color:var(--orange-ink)}
.inspection-record.is-checked b{background:var(--orange);color:#3b2032;border-color:#fff}
.month-stamp{background:var(--warm-paper);border-color:var(--orange);color:var(--orange-ink)}
.rhythm-panel .insight-ribbon.is-conclusion{background:var(--warm-paper);border-color:var(--warm-line)}
.result-field.is-focus{background:var(--warm-paper);border-color:var(--warm-line)}
.measure-divider{color:var(--orange-ink)}
.measure-summary.is-conclusion{border-top:2px solid var(--orange)}
.sara-lips,.sara-eyes-open{opacity:0;will-change:opacity}
.sara-rig{will-change:transform}
.portrait .base-scene{grid-template-rows:94px minmax(0,1fr) 35px}
.portrait .content-layer{grid-template-rows:49px 38px 40px minmax(0,1fr)}
.portrait .concept-station{grid-template-rows:24px 1fr 1fr;padding-bottom:17px}
.portrait .interaction-mark{width:20px;height:20px;font-size:13px;right:9px;bottom:9px}
.portrait .interval-card{padding-bottom:4px}
.portrait .interval-card>.interaction-mark{width:14px;height:14px;font-size:10px;right:4px;bottom:4px;border-color:transparent;background:transparent}
.portrait .process-node{padding-bottom:16px}
.portrait .process-node>.interaction-mark{width:16px;height:16px;font-size:11px;right:4px;bottom:3px}
.practice-feedback:empty{visibility:hidden}

/* v6: each card has one illustration and one balanced block of meaning. */
:root{--success:#237958;--success-paper:#edf7f1;--error:#b42336;--error-paper:#fff0f2}
button:focus-visible,a:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline-color:var(--indigo)}
.concept-station{display:grid;grid-template-rows:28px minmax(0,1fr) 126px;gap:13px;padding:22px 23px 24px}
.concept-art{align-self:center;justify-self:center;margin:0;width:min(100%,320px);height:auto;max-height:100%}
.concept-copy{display:flex;flex-direction:column;justify-content:center;min-width:0;padding:7px 0 6px 7px;border-top:1px solid var(--line)}
.concept-copy h2{font-size:27px;line-height:1.1;margin:0 0 12px;letter-spacing:-.8px}
.concept-copy .concept-meaning{font-size:15.75px;line-height:1.35;margin:0;min-height:0;max-width:300px}
.concept-station.is-upcoming .concept-copy{opacity:.5}
.concept-station.is-upcoming .concept-meaning{opacity:1;transform:none}
.concept-station.is-explore .concept-copy{border-top-color:var(--line)}
.visited-tag{width:28px;height:28px;background:var(--success);color:white;font-size:17px;font-weight:700;top:16px;right:16px;box-shadow:0 0 0 3px var(--success-paper)}
.close-button{padding:0;gap:10px;border-radius:24px;min-width:44px;min-height:44px}
.close-button>.close-glyph{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--indigo);color:#fff;font-size:29px;font-weight:400;line-height:1;flex-shrink:0;transition:background .15s,transform .15s}
.close-button>.close-label{font-size:15px;color:var(--indigo)}
.close-button:hover>.close-glyph{background:#251d7d;transform:scale(1.04)}
.detail-close{display:grid;place-items:center;width:30px;height:30px;padding:0;border-radius:50%;background:#716b88;color:#fff;font-size:23px;line-height:1}
.practice-choices button.is-correct{border:2px solid var(--success);background:var(--success-paper);color:var(--success)}
.practice-choices button.is-incorrect{border:2px solid var(--error);background:var(--error-paper);color:var(--error)}
.practice-feedback{gap:10px}
.practice-feedback.is-correct{background:var(--success-paper);color:var(--success)}
.practice-feedback.is-incorrect{background:var(--error-paper);color:var(--error)}
.practice-feedback.is-correct:before{content:'✓';font-size:21px;font-weight:700}
.practice-feedback.is-incorrect:before{content:'×';font-size:23px;font-weight:700}
.practice-navigation>span{color:var(--success)}
.inspection-record.is-checked b{background:var(--success);color:#fff;border-color:#fff}
.interaction-cue{position:absolute;inset:0;z-index:36;pointer-events:none}
.cue-hand{position:absolute;height:auto;transform-origin:43.5% 12.3%;filter:drop-shadow(0 3px 2px #20184e28);pointer-events:none;user-select:none}
.cue-ring{position:absolute;width:36px;height:36px;border:3px solid var(--orange);border-radius:50%;opacity:0;pointer-events:none}
.portrait .concept-station{grid-template-rows:26px minmax(0,1fr);grid-template-columns:45% minmax(0,1fr);gap:12px;padding:16px}
.portrait .concept-art{grid-column:1;grid-row:2;max-height:none;width:100%;margin:0}
.portrait .concept-copy{grid-column:2;grid-row:2;border:0;padding:0 0 0 5px;align-self:center}
.portrait .concept-copy h2{font-size:20.25px;margin:0 0 12px;line-height:1.1}
.portrait .concept-copy .concept-meaning{font-size:12px;line-height:1.4}
.portrait .visited-tag{width:24px;height:24px;font-size:15px;top:12px;right:12px}
.portrait .close-button{min-height:38px;min-width:38px;padding:0}
.portrait .close-button>.close-glyph{display:grid;width:36px;height:36px;font-size:26px}
.portrait .close-button>.close-label{display:none}
.portrait .detail-close{width:24px;height:24px;font-size:20px}
.portrait .practice-feedback{gap:6px}
.portrait .practice-feedback:before{font-size:16px}

/* v7: full-color entrance, grounded feet, and cool illustration surfaces. */
.interval-icon{background-image:url('assets/intervalos-v7.png')}
.learning-art{background-image:url('assets/conceptos-v7.png')}
.ground-shadow{left:12%;bottom:.1%;width:54%;height:7%;background:radial-gradient(ellipse,#aaa8bb8c 0%,#c3c2d16b 40%,#dedde800 74%)}
.cue-hand{filter:drop-shadow(0 5px 3px #20184e52) drop-shadow(0 1px 1px #20184e38)}
.concept-station{transform:translateX(var(--base-enter-x,0px));opacity:var(--base-enter-opacity,1)}
.concept-station .concept-art{opacity:1;transform:scale(var(--base-art-scale,1));transform-origin:center;transition:none}
.concept-station.is-upcoming .concept-art,.concept-station.is-upcoming .concept-copy,.concept-station.is-upcoming .concept-meaning{opacity:1}
.concept-station.is-upcoming .concept-meaning{transform:none}
.concept-station.is-focus .concept-art{transform:scale(var(--base-art-scale,1))}
.station-link{transition:opacity .18s}
.base-entering .station-link{opacity:0}
.intro-orbit{width:310px;max-width:100%;border:0;background:var(--coral)}
.intro-visual .interval-icon{width:294px;max-width:100%}
.portrait .intro-orbit{width:148px}
.portrait .intro-visual .interval-icon{width:156px}

/* v8: measured narration-led entrances and a lighter supporting palette. */
.interval-icon{background-image:url('assets/intervalos-v8.png')}
.learning-art{background-image:url('assets/conceptos-v8.png')}
.frequency-art{background-image:url('assets/frecuencia-cielo-v8.png');background-size:110% auto;background-position:center}
.brand{transform:scale(.7);transform-origin:left center}
.cue-hand{filter:drop-shadow(0 6px 4px #20184e80) drop-shadow(0 2px 1px #20184e66)}
.close-button>.close-label{order:-1}
.first-link{opacity:var(--base-link-opacity1,0)}
.second-link{opacity:var(--base-link-opacity2,0)}
.base-entering .first-link{opacity:var(--base-link-opacity1,0)}
.base-entering .second-link{opacity:var(--base-link-opacity2,0)}
.station-link{transition:none}
.start-course{position:absolute;left:50%;top:55%;transform:translate(-50%,-50%);z-index:12;box-shadow:0 5px 20px #20184e1a;min-height:56px;padding:15px 28px}
.clock-stage{position:relative;display:grid;place-items:center;width:min(350px,100%);aspect-ratio:1}
.intro-visual .clock-stage .interval-icon{width:100%;max-width:none;transform:translateX(-3%)}
.intro-visual .clock-stage .intro-orbit{width:91.43%;height:91.43%;max-width:none;left:4.285%;top:4.285%;background:#fad7d3;border:0;clip-path:inset(0 0 9% 0)}
.portrait .clock-stage{width:min(180px,100%)}
.portrait .start-course{min-height:48px;font-size:18px;padding:12px 22px}

/* v9: media-clock entrances and text emphasis, without moving the layout. */
.content-motion{opacity:var(--entry-opacity,1);transform:translate(var(--entry-x,0px),var(--entry-y,0px)) scale(var(--entry-scale,1));transform-origin:center}
.concept-copy h2,.concept-copy .concept-meaning{color:color-mix(in srgb,var(--ink),#a9424c calc(var(--text-focus,0)*100%));transform:scale(var(--text-scale,1));transform-origin:left center;transition:none}
.concept-copy h2{color:color-mix(in srgb,#302867,#a9424c calc(var(--text-focus,0)*100%))}
.process-node>strong,.intro-question h3{color:#302867}
.cue-hand{filter:drop-shadow(0 7px 4px #20184eb3) drop-shadow(0 2px 1px #20184e99)}
.interval-card .icon-weeks,.portrait .interval-card .icon-weeks{background-size:280% 186.6667%;background-position:0 100%;clip-path:none}

/* Shared course navigation: the approved 4.6 composition remains unchanged. */
#intro-scenes{height:100%;min-height:0}
#fundamental-scenes{height:100%;min-height:0}
.course-menu .menu-blocks{display:flex;gap:5px}
.course-menu .menu-blocks button{font-size:14px;padding:10px 9px;text-align:center;width:auto;flex:1;color:#373089;border:1px solid #e1e1ef}
.course-menu .menu-blocks button[aria-pressed=true]{background:#eceaf8;border-color:#b9b1df}
.portrait .course-menu .menu-blocks button{font-size:12px;padding:8px 6px}
.portrait #fundamental-menu-items button{font-size:13px;padding:9px 8px}
.interaction-cue[data-target=continue-demo]{z-index:41}
.course-menu{width:420px;padding:16px 18px}
.course-menu button{font-size:16px;padding:10px 12px;line-height:1.25}
.course-menu button[aria-current=step]{background:var(--lavender);font-weight:700}
.course-menu button.is-reviewed:after{content:' ✓';color:var(--success);font-weight:700}
.course-menu .menu-group-label{font-size:10px;letter-spacing:1px;margin:16px 0 5px;border-top:1px solid var(--line);padding-top:14px}
.course-menu #motion-toggle{border-top:1px solid var(--line);margin-top:7px;font-size:14px}
.intro-complete{display:grid;grid-template-columns:minmax(0,1.22fr) minmax(260px,.85fr);align-items:center;gap:34px;padding:48px 44px}
.intro-complete>.close-button{position:absolute;right:24px;top:24px}
.intro-end-copy{min-width:0}.intro-complete .intro-end-copy h2{color:#373089;font-size:48px;margin:0 0 20px}
.intro-complete .intro-end-copy>p{color:var(--ink);font-size:22px;line-height:1.35;margin:0 0 18px}
.intro-complete .intro-end-copy>.eyebrow{color:var(--muted);font-size:12px;margin-bottom:12px}
.intro-complete .intro-end-copy>.completion-note{color:#62617b;font-size:15px;line-height:1.4;margin:7px 0}
.intro-end-art{display:block;width:100%;height:100%;max-height:420px;min-height:0;object-fit:contain;align-self:center}
.intro-end-actions{display:flex;gap:14px;align-items:center;margin-top:20px;flex-wrap:wrap}
.intro-end-actions .primary-button{margin:0}
.intro-end-actions button{font-size:16px;padding:11px 15px}
.intro-complete .completion-note{margin:5px 0;line-height:1.4}
.intro-complete h2{color:#373089}.intro-complete>p{color:#4b4e69}.intro-complete .completion-note{color:#626a92}.intro-complete>.eyebrow{color:#5b649b}
.portrait .course-menu{width:360px;padding:12px}
.portrait .course-menu button{font-size:14px;padding:9px;line-height:1.25}
.portrait .course-menu .menu-group-label{font-size:9px;margin-top:10px;padding-top:10px}
.portrait .intro-complete{padding:25px 22px;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr);gap:0;position:absolute}
.portrait .intro-end-copy{position:relative;z-index:1}
.portrait .intro-complete .intro-end-copy h2{font-size:29px;margin:8px 0 14px;padding-right:90px}
.portrait .intro-complete .intro-end-copy>p{font-size:17px;margin:10px 0}
.portrait .intro-complete .intro-end-copy>.eyebrow{font-size:10px;max-width:72%}
.portrait .intro-complete .intro-end-copy>.completion-note{font-size:13px;margin:8px 0}
.portrait .intro-end-art{position:absolute;width:105px;height:115px;right:16px;top:60px;max-height:none}
.portrait .intro-complete h2{font-size:29px;margin:10px 0}
.portrait .intro-complete>p{font-size:17px;margin:8px 0}
.portrait .intro-complete .completion-note{font-size:13px}
.portrait .intro-end-actions{gap:8px;margin-top:10px}
.portrait .intro-end-actions button{font-size:14px;min-height:38px;padding:9px 12px}
.portrait .intro-complete>.close-button{right:15px;top:15px}
.portrait .player-buttons{gap:2px}
.portrait #previous-scene{padding:7px;min-width:30px}
.portrait #continue-demo{max-width:96px}
.seek-control{touch-action:none}