:root{--lab-indigo:#5965d8;--lab-indigo-dark:#3e49ad;--lab-mint:#2f8f68;--lab-ink:#191b17;--lab-coral:#e85d45}
.learning-page{display:none;min-height:calc(100vh - var(--nav-h));background:linear-gradient(180deg,#f7f6f2 0%,#f2f4ef 100%)}
.learning-shell{max-width:1160px;margin:0 auto;padding:34px 38px 100px}
.learning-back{border:0;background:transparent;color:var(--text-dim);font:650 11px var(--font);padding:7px 0;margin-bottom:18px;cursor:pointer}.learning-back:hover{color:var(--lab-indigo-dark)}
.learning-hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(270px,.65fr);gap:36px;align-items:center;border:1px solid #dde0ed;border-radius:30px;padding:clamp(32px,5vw,62px);background:linear-gradient(135deg,#fff 0%,#f0f1ff 58%,#e8f4ee 100%);box-shadow:0 24px 70px rgba(46,51,93,.08)}
.learning-hero:after{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(89,101,216,.14);border-radius:50%;right:-110px;top:-150px;box-shadow:0 0 0 38px rgba(89,101,216,.035),0 0 0 78px rgba(47,143,104,.025)}
.learning-eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--lab-indigo-dark);font-size:10px;font-weight:850;letter-spacing:.13em;text-transform:uppercase}.learning-eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lab-coral)}
.learning-hero h1{max-width:760px;margin:14px 0 13px;color:var(--lab-ink);font:700 clamp(36px,5.5vw,66px)/.98 Georgia,"Times New Roman",serif;letter-spacing:-.045em}
.learning-hero p{max-width:680px;color:#666b62;font-size:14px;line-height:1.72}
.learning-hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:24px}
.learning-primary,.learning-secondary{min-height:45px;border-radius:13px;padding:0 18px;font:750 12px var(--font);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.learning-primary{border:1px solid var(--lab-indigo);background:var(--lab-indigo);color:#fff;box-shadow:0 9px 22px rgba(89,101,216,.2)}.learning-primary:hover{background:var(--lab-indigo-dark);transform:translateY(-1px)}.learning-primary:disabled{opacity:.55;cursor:wait;transform:none}
.learning-secondary{border:1px solid #d8d9d3;background:#fff;color:#40433d}.learning-secondary:hover{border-color:#aeb3dc;color:var(--lab-indigo-dark)}
.feynman-orbit{position:relative;z-index:1;width:210px;height:210px;margin:auto;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#606cdf,#38439f);color:#fff;box-shadow:0 28px 60px rgba(63,72,164,.24)}
.feynman-orbit:before,.feynman-orbit:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.32);border-radius:50%}.feynman-orbit:before{inset:22px;transform:rotate(16deg)}.feynman-orbit:after{inset:47px;transform:rotate(-18deg)}
.feynman-orbit span{position:relative;z-index:1;text-align:center;font:700 25px/1.05 Georgia,"Times New Roman",serif}.feynman-orbit small{display:block;margin-top:7px;font:650 9px/1.2 var(--font);letter-spacing:.12em;text-transform:uppercase;opacity:.68}
.learning-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0}.learning-step{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:center;padding:12px 14px;border:1px solid var(--border);border-radius:14px;background:rgba(255,255,255,.72);color:var(--text-dim)}.learning-step>span{width:32px;height:32px;border-radius:10px;background:#eeede8;display:grid;place-items:center;font:800 11px var(--font)}.learning-step b{display:block;font-size:11px;color:var(--text)}.learning-step small{display:block;font-size:9px;margin-top:3px}.learning-step.active{border-color:#b8bdea;background:#fff;box-shadow:0 8px 24px rgba(55,61,122,.06)}.learning-step.active>span{background:var(--lab-indigo);color:#fff}
.feynman-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:16px;align-items:start}.learning-card{border:1px solid var(--border);border-radius:22px;background:#fff;box-shadow:0 12px 38px rgba(45,42,32,.045)}.feynman-stage{padding:28px}.feynman-aside{padding:23px;position:sticky;top:calc(var(--nav-h) + 18px)}
.learning-card h2{color:var(--text-bright);font-size:23px;letter-spacing:-.03em;margin:5px 0 8px}.learning-card-lead{color:var(--text-dim);font-size:12px;line-height:1.62;margin-bottom:22px}
.learning-field{margin-top:17px}.learning-field label{display:flex;justify-content:space-between;gap:12px;color:#555950;font-size:11px;font-weight:750;margin-bottom:8px}.learning-field label small{font-weight:500;color:#96988f}
.learning-select,.learning-input,.learning-textarea{width:100%;border:1px solid #d8d6cd;border-radius:12px;background:#faf9f5;color:var(--text-bright);font:500 13px/1.55 var(--font);outline:0;transition:border-color .18s,box-shadow .18s,background .18s}.learning-select,.learning-input{min-height:46px;padding:0 13px}.learning-textarea{min-height:230px;padding:14px;resize:vertical}.learning-textarea:focus,.learning-input:focus,.learning-select:focus{background:#fff;border-color:#8f98df;box-shadow:0 0 0 3px rgba(89,101,216,.1)}
.learning-topic-manual{display:grid;grid-template-columns:auto minmax(180px,1fr);gap:12px;align-items:center;margin-top:10px}.learning-topic-manual>span{color:#8b8d86;font-size:10px;white-space:nowrap}.learning-topic-manual .learning-input{min-height:42px}
.learning-input-help{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:8px;color:#8b8d86;font-size:10px;line-height:1.45}.learning-privacy{display:flex;align-items:flex-start;gap:8px}.learning-privacy span{color:var(--lab-mint)}
.voice-row{display:flex;gap:9px;align-items:center;margin-top:12px}.voice-button{min-height:42px;border:1px solid #d9d7ce;border-radius:12px;background:#fff;color:#444740;padding:0 14px;font:700 11px var(--font);cursor:pointer}.voice-button.listening{border-color:#e99a89;background:#fff1ed;color:#b23d2b;animation:voicePulse 1.25s ease-in-out infinite}.voice-status{font-size:10px;color:var(--text-dim)}
@keyframes voicePulse{50%{box-shadow:0 0 0 6px rgba(232,93,69,.09)}}
.stage-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:22px}.learning-status{display:none;margin-top:14px;padding:11px 13px;border-radius:11px;font-size:11px;line-height:1.55}.learning-status.show{display:block}.learning-status.error{background:#fbebe8;color:#a43b2f;border:1px solid #efc5bc}.learning-status.info{background:#eef0fb;color:#3f4aa9;border:1px solid #cdd1ef}.learning-status.success{background:#eaf4ef;color:#267458;border:1px solid #bdd9cc}
.feynman-principles{display:grid;gap:15px;margin-top:18px}.feynman-principle{display:grid;grid-template-columns:28px 1fr;gap:10px}.feynman-principle span{width:28px;height:28px;border-radius:9px;background:#f0f1fa;color:var(--lab-indigo-dark);display:grid;place-items:center;font-size:12px}.feynman-principle b{display:block;font-size:11px;color:var(--text-bright);margin-bottom:3px}.feynman-principle p{font-size:10px;line-height:1.5;color:var(--text-dim)}
.followup-list{display:grid;gap:12px;margin:20px 0}.followup-question{padding:14px 15px;border-left:3px solid var(--lab-indigo);border-radius:0 12px 12px 0;background:#f2f3fb;color:#373b66;font-size:13px;line-height:1.58}
.result-head{display:grid;grid-template-columns:108px 1fr;gap:20px;align-items:center}.score-ring{--score-angle:0deg;width:104px;height:104px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--lab-indigo) var(--score-angle),#ebebe6 0);position:relative}.score-ring:after{content:"";position:absolute;inset:9px;background:#fff;border-radius:50%}.score-ring strong,.score-ring small{position:relative;z-index:1}.score-ring strong{font-size:29px;color:var(--text-bright)}.score-ring small{font-size:9px;color:var(--text-dim);margin-top:-26px}.result-summary{font-size:13px;line-height:1.62;color:#555950}.score-delta{display:inline-flex;margin-top:8px;border-radius:999px;background:#e9f3ee;color:var(--lab-mint);padding:5px 9px;font-size:9px;font-weight:800}
.dimension-list{display:grid;gap:11px;margin:24px 0}.dimension-row{display:grid;grid-template-columns:110px 1fr 34px;gap:10px;align-items:center;font-size:10px;color:#5d6058}.dimension-track{height:7px;border-radius:999px;background:#ecece6;overflow:hidden}.dimension-track i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--lab-indigo),#73bda5)}.dimension-row strong{text-align:right;color:var(--text-bright);font-size:11px}
.feedback-columns{display:grid;grid-template-columns:1fr 1fr;gap:12px}.feedback-panel{border:1px solid var(--border);border-radius:15px;padding:16px;background:#fbfaf7}.feedback-panel h3{font-size:11px;color:var(--text-bright);margin-bottom:10px}.feedback-panel ul{display:grid;gap:8px;padding-left:17px}.feedback-panel li{font-size:11px;line-height:1.55;color:#62655e}.feedback-panel.good{border-color:#cfe0d7;background:#f4f8f5}.feedback-panel.gap{border-color:#ead4cd;background:#fff8f5}
.misconception-card{margin-top:12px;padding:14px;border:1px solid #ead1c8;border-radius:13px;background:#fff8f5}.misconception-card b{display:block;font-size:10px;color:#a33f30;margin-bottom:6px}.misconception-card p{font-size:11px;line-height:1.55;color:#5b5d57}.model-explanation{margin-top:18px;padding:18px;border-radius:15px;background:#f0f1fa;border:1px solid #d4d7ef}.model-explanation h3{font-size:11px;color:var(--lab-indigo-dark);margin-bottom:8px}.model-explanation p{font-size:12px;line-height:1.7;color:#4f536d;white-space:pre-wrap}
.recommendation-chips{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.recommendation-chip{border:1px solid #cfd2ec;border-radius:999px;background:#fff;color:var(--lab-indigo-dark);padding:7px 10px;font:700 9px var(--font);cursor:pointer}.recommendation-chip:hover{background:#f0f1fa}
.feynman-history{margin-top:18px;padding:22px}.history-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:13px}.history-item{border:1px solid var(--border);border-radius:13px;background:#faf9f5;padding:13px}.history-item header{display:flex;justify-content:space-between;gap:10px}.history-item b{font-size:11px;color:var(--text-bright)}.history-item strong{color:var(--lab-indigo-dark);font-size:15px}.history-item small{display:block;color:var(--text-dim);font-size:9px;margin-top:7px}
.learning-promo-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:12px;margin:0 0 42px}.learning-promo{position:relative;overflow:hidden;min-height:150px;border:1px solid #dfe1eb;border-radius:19px;padding:22px;background:linear-gradient(135deg,#fff,#f1f2ff);text-align:left;color:var(--text);cursor:pointer;transition:transform .25s,box-shadow .25s}.learning-promo:last-child{background:linear-gradient(135deg,#fff,#edf6f1)}.learning-promo:hover{transform:translateY(-3px);box-shadow:0 15px 34px rgba(50,56,105,.09)}.learning-promo span{font-size:9px;color:var(--lab-indigo-dark);font-weight:850;letter-spacing:.12em;text-transform:uppercase}.learning-promo h3{font-size:18px;color:var(--text-bright);margin:11px 0 7px}.learning-promo p{max-width:520px;font-size:11px;line-height:1.55;color:var(--text-dim)}.learning-promo i{position:absolute;right:20px;bottom:17px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--lab-indigo-dark);font-style:normal}
.symbiosis-hero{background:linear-gradient(135deg,#1d201a,#343f35);border-color:#3f4d42;color:#fff}.symbiosis-hero h1{color:#fff}.symbiosis-hero p{color:rgba(255,255,255,.67)}.symbiosis-hero .learning-eyebrow{color:#9ed8be}.symbiosis-mark{position:relative;z-index:1;width:210px;height:210px;margin:auto;display:grid;place-items:center}.symbiosis-mark span{position:absolute;width:132px;height:132px;border-radius:50%;mix-blend-mode:screen}.symbiosis-mark span:first-child{background:rgba(232,93,69,.75);transform:translateX(-35px)}.symbiosis-mark span:last-child{background:rgba(89,101,216,.8);transform:translateX(35px)}.symbiosis-mark b{position:relative;z-index:2;color:#fff;font:700 25px Georgia,"Times New Roman",serif}
.event-layout{display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:16px;margin-top:18px;align-items:start}.event-info{padding:28px}.event-form{padding:25px;position:sticky;top:calc(var(--nav-h) + 18px)}
.event-cycle{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin:21px 0}.event-cycle article{padding:14px;border:1px solid var(--border);border-radius:13px;background:#faf9f5}.event-cycle span{display:block;color:var(--lab-indigo-dark);font-size:9px;font-weight:850;margin-bottom:7px}.event-cycle b{display:block;font-size:11px;color:var(--text-bright);margin-bottom:4px}.event-cycle p{font-size:9px;line-height:1.45;color:var(--text-dim)}
.criteria-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.criteria-item{display:grid;grid-template-columns:44px 1fr;gap:10px;align-items:center;padding:12px;border:1px solid var(--border);border-radius:12px}.criteria-item strong{width:42px;height:42px;border-radius:11px;background:#f0f1fa;color:var(--lab-indigo-dark);display:grid;place-items:center;font-size:12px}.criteria-item b{display:block;font-size:10px;color:var(--text-bright)}.criteria-item small{font-size:9px;color:var(--text-dim)}
.event-prize{margin-top:18px;border-radius:15px;padding:18px;background:linear-gradient(135deg,#fff3ee,#f3f4ff);border:1px solid #eadbd3}.event-prize h3{font-size:12px;color:var(--text-bright);margin-bottom:9px}.event-prize ul{padding-left:17px;display:grid;gap:7px}.event-prize li{font-size:10px;line-height:1.5;color:#61645d}
.learning-check{display:flex;align-items:flex-start;gap:9px;margin-top:14px;font-size:10px;line-height:1.5;color:#666960}.learning-check input{margin-top:2px;accent-color:var(--lab-indigo)}
.event-submit-note{font-size:9px;line-height:1.5;color:var(--text-dim);margin-top:11px}.event-form .learning-primary{width:100%;margin-top:17px}
.event-closed{margin-top:17px;padding:12px 13px;border:1px solid #ead4cd;border-radius:12px;background:#fff5f1;color:#9b4335;font-size:10px;font-weight:700;line-height:1.55}.event-form .learning-primary:disabled{cursor:not-allowed;opacity:.45;box-shadow:none}
.sidebar-primary.learning-nav span{color:var(--lab-indigo-dark)}
@media(max-width:980px){.feynman-grid,.event-layout{grid-template-columns:1fr}.feynman-aside,.event-form{position:static}.learning-hero{grid-template-columns:1fr 190px}.feynman-orbit,.symbiosis-mark{width:170px;height:170px}.event-cycle{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.learning-shell{padding:20px 13px 90px}.learning-hero{display:block;padding:28px 22px;border-radius:22px}.learning-hero h1{font-size:38px}.learning-hero-visual{display:none}.learning-steps{grid-template-columns:1fr;gap:7px}.learning-step{padding:9px 11px}.learning-step small{display:none}.feynman-stage,.feynman-aside,.event-info,.event-form,.feynman-history{padding:18px}.feedback-columns,.history-grid,.learning-promo-grid{grid-template-columns:1fr}.learning-promo-grid{margin-bottom:34px}.event-cycle,.criteria-grid{grid-template-columns:1fr 1fr}.result-head{grid-template-columns:88px 1fr}.score-ring{width:84px;height:84px}.dimension-row{grid-template-columns:92px 1fr 31px}.learning-textarea{min-height:200px}.stage-actions{flex-direction:column-reverse}.stage-actions button{width:100%}}
@media(max-width:430px){.event-cycle,.criteria-grid,.feedback-columns{grid-template-columns:1fr}.learning-hero h1{font-size:34px}.learning-input-help{align-items:flex-start;flex-direction:column}.learning-topic-manual{grid-template-columns:1fr;gap:6px}.learning-topic-manual>span{white-space:normal}.voice-row{align-items:flex-start;flex-direction:column}.voice-button{width:100%}}
@media(prefers-reduced-motion:reduce){.learning-primary,.learning-promo{transition:none}.voice-button.listening{animation:none}}