/* Academic As Learning — adaptive study loop */
.learning-shell{display:grid;gap:18px;animation:crystal-content-in .48s var(--ease-liquid) both}.learning-intro{display:flex;align-items:center;justify-content:space-between;gap:18px}.learning-intro>div{display:flex;align-items:center;gap:15px}.learning-intro img{width:56px;height:56px;object-fit:contain;filter:drop-shadow(0 12px 24px rgb(54 213 255 / 20%))}.learning-intro h1{margin:0;font-size:clamp(28px,4vw,42px);line-height:1}.learning-intro p:not(.eyebrow){margin:6px 0 0;color:var(--ink-soft)}
.learning-tabs{display:flex;gap:6px;max-width:100%;padding:6px;border:1px solid var(--line);border-radius:18px;background:rgb(255 255 255 / 5%);overflow-x:auto;scrollbar-width:none}.learning-tabs::-webkit-scrollbar{display:none}.learning-tabs button{min-height:38px;padding:0 15px;border:0;border-radius:12px;color:var(--ink-soft);background:transparent;font-size:13px;font-weight:700;white-space:nowrap}.learning-tabs button.is-active{color:var(--ink);background:linear-gradient(120deg,rgb(110 92 255 / 18%),rgb(54 213 255 / 11%));box-shadow:inset 0 1px rgb(255 255 255 / 12%)}
.learning-view{min-height:420px}.learning-next{position:relative;min-height:290px;display:grid;grid-template-columns:1fr auto;align-items:center;padding:38px;border-radius:34px;overflow:hidden}.learning-next>div:not(.learning-next-glow){position:relative;z-index:2;max-width:680px}.learning-next h2{margin:7px 0 8px;font-size:clamp(30px,5vw,52px);line-height:1}.learning-next p{max-width:650px;color:var(--ink-soft)}.learning-next>img{position:relative;z-index:1;width:150px;filter:drop-shadow(0 22px 50px rgb(110 92 255 / 35%));animation:crystal-logo-float 5s ease-in-out infinite}.learning-next-glow{position:absolute;width:420px;height:420px;right:-80px;top:-130px;border-radius:50%;background:radial-gradient(circle,rgb(54 213 255 / 22%),rgb(110 92 255 / 10%) 42%,transparent 70%);filter:blur(12px)}.learning-evidence{display:flex;flex-wrap:wrap;gap:7px;margin:17px 0 22px}.learning-evidence span{padding:6px 9px;border:1px solid var(--line);border-radius:999px;color:var(--ink-faint);background:rgb(255 255 255 / 5%);font-size:10px;font-weight:700}
.learning-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}.learning-metric{display:grid;padding:19px;border:1px solid var(--line);border-radius:23px;background:var(--surface);box-shadow:var(--glass-shadow)}.learning-metric strong{font-size:30px}.learning-metric span{margin-top:2px;font-weight:750}.learning-metric small{margin-top:5px;color:var(--ink-faint)}.learning-how{margin-top:14px}.learning-cycle{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;align-items:center;gap:12px}.learning-cycle>span{display:grid;grid-template-columns:auto 1fr;gap:2px 9px;align-items:center;padding:15px;border:1px solid var(--line);border-radius:18px;background:rgb(255 255 255 / 4%)}.learning-cycle b{grid-row:span 2;display:grid;place-items:center;width:32px;height:32px;border-radius:11px;color:white;background:linear-gradient(140deg,var(--violet),#168fd1)}.learning-cycle small{color:var(--ink-faint)}.learning-cycle>i{color:var(--cyan);font-style:normal}
.learning-split{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(280px,.8fr);gap:16px}.learning-section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px}.learning-section-title h2{margin:0}.learning-section-title>span{color:var(--ink-faint);font-size:12px}.learning-topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.learning-topic-card{padding:18px;border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:var(--glass-shadow)}.learning-topic-card header{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px}.learning-topic-card h3{margin:2px 0 0}.learning-topic-card header small,.learning-topic-card>p{color:var(--ink-faint)}.learning-topic-card>p{min-height:38px;font-size:12px}.topic-facts{display:flex;flex-wrap:wrap;gap:6px}.topic-facts span{padding:5px 8px;border-radius:999px;background:rgb(110 92 255 / 9%);font-size:9px;font-weight:750}.mastery-orb{--mastery:0;display:grid;place-items:center;width:54px;height:54px;border-radius:50%;background:conic-gradient(var(--cyan) calc(var(--mastery)*1%),rgb(255 255 255 / 9%) 0);position:relative}.mastery-orb::before{content:"";position:absolute;inset:5px;border-radius:inherit;background:var(--surface-solid)}.mastery-orb b{position:relative;font-size:11px}.learning-progress{height:6px;margin-top:14px;border-radius:999px;background:rgb(255 255 255 / 9%);overflow:hidden}.learning-progress i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--violet),var(--cyan));transition:width .5s var(--ease-liquid)}
.learning-form-card{height:max-content}.learning-form-card h2{margin:4px 0 16px}.learning-form-card form{display:grid;gap:12px}.learning-form-card label{display:grid;gap:6px;color:var(--ink-soft);font-size:11px;font-weight:700}.learning-form-card input,.learning-form-card select,.learning-form-card textarea{width:100%;min-height:43px;padding:10px 12px;border:1px solid var(--line-strong);border-radius:13px;color:var(--ink);background:rgb(255 255 255 / 6%);outline:0}.learning-form-card textarea{min-height:78px;resize:vertical}.learning-form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.learning-form-card form>small{color:var(--ink-faint);line-height:1.5}.learning-empty{display:grid;place-items:center;padding:44px 20px;text-align:center}.learning-empty img{width:70px}.learning-empty h3{margin:12px 0 4px}.learning-empty p{max-width:390px;margin:0;color:var(--ink-faint)}
.learning-library-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(320px,.8fr);gap:16px}.learning-side-stack{display:grid;gap:16px;align-content:start}.source-list,.quiz-list,.mastery-list{display:grid;gap:9px}.source-row{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:start;padding:13px;border:1px solid var(--line);border-radius:18px}.source-row>img{width:38px}.source-row>div{display:grid;min-width:0}.source-row span{margin-top:3px;color:var(--ink-faint);font-size:9px}.source-row p{display:-webkit-box;margin:8px 0 0;overflow:hidden;color:var(--ink-soft);font-size:11px;-webkit-box-orient:vertical;-webkit-line-clamp:3}.learning-upload-status{min-height:18px;color:var(--cyan);font-size:11px}.grounded-answer{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}.grounded-badge{display:inline-flex;padding:5px 8px;border-radius:999px;color:var(--success);background:color-mix(in srgb,var(--success) 10%,transparent);font-size:9px;font-weight:800}.grounded-answer>p{color:var(--ink-soft);font-size:12px}.citation-list{display:grid;gap:7px}.citation-list article{display:grid;grid-template-columns:auto 1fr;gap:8px;padding:9px;border:1px solid var(--line);border-radius:13px}.citation-list b{display:grid;place-items:center;width:24px;height:24px;border-radius:8px;color:white;background:var(--violet)}.citation-list span{display:grid}.citation-list small{display:-webkit-box;margin-top:3px;overflow:hidden;color:var(--ink-faint);-webkit-box-orient:vertical;-webkit-line-clamp:2}
.review-stage{display:grid;justify-items:center}.review-card{position:relative;width:min(100%,660px);height:340px;transform-style:preserve-3d;transition:transform .6s var(--ease-liquid);cursor:pointer}.review-card.is-flipped{transform:rotateY(180deg)}.review-face{position:absolute;inset:0;display:grid;place-items:center;align-content:center;padding:35px;border:1px solid var(--glass-stroke);border-radius:32px;background:linear-gradient(145deg,var(--surface-raised),var(--glass-fill));box-shadow:0 28px 70px rgb(0 0 0 / 18%),inset 0 1px rgb(255 255 255 / 18%);text-align:center;backface-visibility:hidden}.review-face small{color:var(--cyan);font-weight:800;letter-spacing:.08em}.review-face h2{max-width:520px;font-size:clamp(23px,4vw,36px)}.review-face span,.review-face p{color:var(--ink-faint)}.review-back{transform:rotateY(180deg);background:linear-gradient(145deg,color-mix(in srgb,var(--violet) 12%,var(--surface-raised)),color-mix(in srgb,var(--cyan) 8%,var(--surface-solid)))}.rating-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;width:min(100%,660px);margin-top:12px}.rating-row button{min-height:42px;border:1px solid var(--line);border-radius:13px;color:var(--ink);background:var(--surface);font-weight:700}.rating-row button:hover{background:rgb(110 92 255 / 13%)}.review-queue{color:var(--ink-faint);font-size:11px}.quiz-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);border-radius:17px}.quiz-row img{width:42px}.quiz-row>div{display:grid}.quiz-row span{color:var(--ink-faint);font-size:10px}.quiz-runner>header{display:flex;align-items:center;gap:16px}.quiz-runner header h2{margin:0}.quiz-runner header span{color:var(--ink-faint)}.quiz-runner form{display:grid;gap:18px;margin-top:22px}.quiz-runner fieldset{display:grid;gap:8px;padding:18px;border:1px solid var(--line);border-radius:20px}.quiz-runner legend{padding:0 7px;font-weight:750}.quiz-runner legend span{display:inline-grid;place-items:center;width:27px;height:27px;margin-right:9px;border-radius:9px;color:white;background:var(--violet)}.quiz-runner fieldset label{display:grid;grid-template-columns:auto 1fr;gap:9px;align-items:center;padding:11px;border:1px solid var(--line);border-radius:13px;cursor:pointer}.quiz-result{display:grid;justify-items:center;max-width:620px;margin:40px auto;padding:42px;border-radius:32px;text-align:center}.quiz-result img{width:105px}.quiz-result h1{margin:6px 0;font-size:56px}.quiz-result p{color:var(--ink-soft)}.quiz-result .btn-glass{margin-top:8px}.result-mastery{margin:12px 0 20px;padding:10px 14px;border-radius:14px;background:rgb(110 92 255 / 10%)}
.mastery-row{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:14px;padding:13px;border:1px solid var(--line);border-radius:18px}.mastery-row>div{display:grid}.mastery-row small{margin-top:3px;color:var(--ink-faint)}.mastery-note{display:grid;grid-template-columns:auto 1fr;gap:12px;margin-top:16px;padding:14px;border:1px solid rgb(54 213 255 / 15%);border-radius:18px;background:rgb(54 213 255 / 6%)}.mastery-note img{width:38px}.mastery-note p{margin:0;color:var(--ink-soft);font-size:12px}.mastery-note strong{display:block;color:var(--ink)}.learning-loading{display:grid;gap:12px}.learning-loading span{display:block;height:110px;border-radius:25px;background:linear-gradient(100deg,var(--surface),rgb(255 255 255 / 12%),var(--surface));background-size:220% 100%;animation:loading-bar 1.6s linear infinite}.learning-error{display:grid;justify-items:center;padding:45px;text-align:center}.learning-error img{width:78px}.learning-error p{color:var(--ink-soft)}
@media(max-width:1100px){.learning-split,.learning-library-grid{grid-template-columns:1fr}.learning-metrics{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.learning-shell{padding-bottom:92px}.learning-intro{align-items:flex-start}.learning-intro img{width:45px;height:45px}.learning-intro>button{min-width:44px;padding:0 11px;font-size:0}.learning-intro>button::after{content:"↻";font-size:18px}.learning-tabs{margin-inline:-2px}.learning-next{min-height:360px;grid-template-columns:1fr;padding:25px}.learning-next>img{position:absolute;right:-20px;bottom:-24px;width:125px;opacity:.45}.learning-next h2{font-size:34px}.learning-metrics{grid-template-columns:1fr 1fr}.learning-cycle{grid-template-columns:1fr}.learning-cycle>i{display:none}.learning-topic-grid{grid-template-columns:1fr}.learning-form-row{grid-template-columns:1fr}.review-card{height:330px}.rating-row{grid-template-columns:1fr 1fr}.quiz-row{grid-template-columns:auto 1fr}.quiz-row>button{grid-column:1/-1}.learning-library-grid{grid-template-columns:1fr}.learning-section-title{align-items:flex-start}.learning-next .btn-primary{min-width:150px}.learning-evidence{max-width:250px}}
@media(prefers-reduced-motion:reduce){.review-card{transition:none}.learning-next>img{animation:none}}