@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--navy:#0b172a;--ink:#17243a;--soft:#68758a;--line:#e5eaf0;--white:#fff;--accent:#c39a57;--bg:#f7f8fa}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:'DM Sans',Arial,sans-serif;background:var(--bg);color:var(--ink)}a{text-decoration:none;color:inherit}button,input{font:inherit}button{cursor:pointer}.shell{display:flex;min-height:100vh}.sidebar{width:274px;flex:none;position:fixed;top:0;bottom:0;background:#0c182b;color:#f5f6fb;padding:29px 21px;display:flex;flex-direction:column;z-index:8}.brand{display:flex;gap:12px;align-items:center;margin:0 8px 55px}.brand-icon{width:40px;height:40px;border:1px solid #7c705f;border-radius:11px;display:flex;align-items:center;justify-content:center;color:#d7b77b;font-family:Georgia;font-size:26px}.brand strong{display:block;font-size:15px;letter-spacing:2px}.brand 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0}.section-note{font-size:10px;letter-spacing:1px;color:#9ba7b5}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid #e4eaf0;padding:25px 26px 26px;min-height:252px;display:flex;flex-direction:column;transition:.2s}.card:hover{transform:translateY(-3px);border-color:#b6c4d4;box-shadow:0 14px 30px #1f30470d}.card-num{font-size:10px;color:#9aa5b4;letter-spacing:1.4px;font-weight:700}.card-icon{font-family:Georgia;font-size:33px;color:#bd985c;margin:21px 0 12px}.card h3{font-family:Georgia;font-size:23px;font-weight:normal;margin:0 0 9px}.card p{font-size:12px;line-height:1.7;color:#78869a;margin:0 0 20px}.card-cta{font-size:11px;font-weight:700;color:#2e496a;margin-top:auto}.bottom-strip{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #dfe5eb;margin-top:37px;padding:24px 0}.bottom-strip p{font-family:Georgia;font-size:18px;margin:5px 0}.bottom-strip>span{font-size:10px;color:#a3acb8;letter-spacing:1px}.page-head{display:flex;justify-content:space-between;align-items:center;margin:20px 0 39px}.page-head h1{font-family:Georgia;font-weight:normal;letter-spacing:-1.4px;font-size:clamp(36px,4vw,55px);margin:0 0 10px}.page-head p{font-size:13px;color:#798699;line-height:1.7;margin:0}.chapter-tag{color:#9a7b48;border:1px solid #dacbb6;padding:10px 14px;letter-spacing:1px;font-size:9px;white-space:nowrap}.reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:22px;align-items:start}.paper{background:#fff;border:1px solid #e5e9ee;padding:50px clamp(28px,5vw,70px);box-shadow:0 4px 20px #15274408;line-height:1.85;font-size:15px}.reading-meta{font-size:9px;letter-spacing:1.4px;color:#8894a3;border-bottom:1px solid #e4e8ee;padding-bottom:19px}.reading-meta span{margin:0 8px}.paper h2{font-family:Georgia;font-weight:normal;font-size:27px;line-height:1.3;margin:35px 0 13px}.paper p{margin:12px 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#e9eef2}.aside-box,.aside-tip{border:1px solid #e4e9ef;background:#fff;padding:23px}.aside-box a{display:block;font-size:11px;color:#68788f;padding-top:17px}.aside-tip{margin-top:15px;line-height:1.65;font-family:Georgia;font-size:19px}.aside-tip a{display:block;font:700 11px 'DM Sans';color:#2c567b;margin-top:17px}.lab-layout{display:grid;grid-template-columns:290px 1fr;gap:20px}.lab-panel,.lab-result{background:#fff;border:1px solid #e5eaf0;padding:30px}.control{margin:30px 0}.control label{display:flex;justify-content:space-between;font-size:12px;color:#475a70}.control b{color:#b78b49;font-size:14px}.control input{width:100%;margin:18px 0 0;accent-color:#253e5f}.secondary-btn{background:white;border:1px solid #cbd5e0;color:#38506a;padding:12px 15px;border-radius:5px;font-size:11px;font-weight:700}.formula-box{background:#f7f8fa;margin-top:28px;padding:10px;text-align:center}.result-header{display:flex;justify-content:space-between;align-items:center;gap:8px}.state-badge{background:#e6f6ed;color:#327a57;font-size:10px;padding:8px 10px;border-radius:4px}.state-badge.divergent{background:#fff0ea;color:#9e583f}#chart{width:100%;height:auto;margin-top:23px;background:#fbfcfe}.result-stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #e8edf1;margin-top:10px;padding-top:22px;gap:15px}.result-stats span{font-size:9px;letter-spacing:1px;color:#93a0ae;display:block}.result-stats strong{font:normal 27px Georgia;display:block;margin-top:9px;color:#233852}.lab-explanation{font-size:12px;line-height:1.8;color:#6a7a8b;margin:25px 0 0}.quiz-wrap{display:grid;gap:18px}.question{background:white;border:1px solid #e3e9f0;padding:25px 28px}.question-number{color:#b28d52;font-size:10px;font-weight:800;letter-spacing:1.5px}.question h3{font:normal 20px Georgia;line-height:1.5;margin:12px 0 17px}.answers{display:grid;gap:10px}.answer{padding:13px 16px;border:1px solid #e7ecf1;cursor:pointer;font-size:13px;display:flex;align-items:center;gap:12px}.answer:has(input:checked){border-color:#879fb8;background:#f4f7fb}.answer input{accent-color:#233d5e}.feedback{display:none;margin-top:16px;padding:15px;background:#f0f7f5;color:#3b695a;font-size:12px;line-height:1.6}.feedback.wrong{background:#fff4ef;color:#915b47}.feedback.show{display:block}.quiz-bottom{display:flex;gap:13px;margin-top:25px}.quiz-note{color:#8996a4;font-size:11px;margin-top:22px}#quiz-results{font-size:15px;font-weight:700;margin-top:20px}.empty-library{background:white;border:1px solid #e6ebf0;display:flex;flex-direction:column;align-items:center;padding:80px 28px;text-align:center}.empty-icon{font-size:51px;color:#bd985c}.empty-library h2{font:normal 31px Georgia;margin-bottom:5px}.empty-library p{font-size:13px;color:#7c899a;max-width:550px;line-height:1.8;margin-bottom:25px}footer{border-top:1px solid #e4e9ef;padding:25px 6%;display:flex;justify-content:space-between;font-size:10px;color:#9aa5b1;gap:16px}@media(max-width:1100px){.hero{grid-template-columns:1fr}.hero-art{display:none}.reading-layout{grid-template-columns:1fr}.reading-aside{display:none}.lab-layout{grid-template-columns:1fr}}@media(max-width:850px){.sidebar{transform:translateX(-100%);transition:.25s}.sidebar.open{transform:translateX(0)}.main-wrap{margin:0;width:100%}#menu-btn{display:block}.topbar{padding:0 22px}.breadcrumbs{font-size:9px}.topright{display:none}main{padding:40px 23px 60px}.cards{grid-template-columns:1fr}.hero{min-height:auto;padding:25px 0}.hero h1{font-size:clamp(44px,10vw,68px)}.section-title{align-items:start}.section-note{display:none}.page-head{align-items:start}.chapter-tag{display:none}.paper{padding:27px 23px}.lab-panel,.lab-result{padding:22px}.result-stats strong{font-size:20px}footer{display:block;line-height:2}}

/* Lexuesi akademik: 23 faqe origjinale, responsiv */
.lecture-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:22px;margin:28px 0}
.lecture-card{display:block;background:#fff;border:1px solid #e0e6ee;border-radius:16px;padding:30px;color:#182c42;text-decoration:none;box-shadow:0 8px 25px rgba(20,42,66,.04)}
.lecture-card h2{font-size:1.45rem;line-height:1.34;margin:14px 0}
.lecture-card p{line-height:1.7;color:#526375}
.lecture-card a{color:#245581;font-weight:600}
.book-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:20px 0;background:#fff;border:1px solid #e2e8ef;padding:15px;border-radius:14px}
.book-toolbar.bottom{justify-content:space-between}
.book-toolbar .primary-btn,.book-toolbar .secondary-btn{font-size:13px;padding:11px 14px;display:inline-flex;align-items:center;justify-content:center;min-height:41px;text-decoration:none;cursor:pointer}
.book-toolbar button:disabled{opacity:.38;cursor:not-allowed}
.page-select-label{font-size:13px;color:#3b536a;display:flex;align-items:center;gap:8px}
.page-select{padding:10px;border:1px solid #cfdae6;background:#fff;border-radius:8px;color:#21364d;max-width:140px}
.book-notice{font-size:14px;color:#53677a;line-height:1.7;background:#eef4f8;border-left:3px solid #315a7e;padding:15px 18px;border-radius:5px}
.book-pages{max-width:1020px;margin:25px auto;text-align:center}
.book-image{display:block;width:100%;max-width:980px;height:auto;margin:0 auto;border:1px solid #e0e5eb;background:white;box-shadow:0 10px 25px rgba(22,39,59,.09);border-radius:3px}
.book-pages.all-pages{display:flex;flex-direction:column;gap:28px}
.book-pages figure{margin:0}.book-pages figcaption{font-size:12px;letter-spacing:.06em;margin-top:8px;color:#697887}
.page-counter{font-weight:700;color:#395873;font-size:14px}
.book-pdf-fallback{background:#fff;border:1px solid #dde6ef;padding:25px;border-radius:16px;margin:30px 0 60px}
.book-pdf-fallback h2{margin:0 0 9px;font-size:21px}.book-pdf-fallback summary{cursor:pointer;padding:13px 0;font-weight:700;color:#27547e}.book-pdf-fallback details{margin-bottom:12px}.book-pdf-fallback a{color:#245581}
.lesson-shortcut{display:flex;text-decoration:none;color:inherit}
@media(max-width:700px){.book-toolbar{gap:8px}.book-toolbar .primary-btn,.book-toolbar .secondary-btn{flex:1 1 43%;min-width:0}.page-select-label{flex:1 1 100%}.book-pages{margin:14px 0}.book-pdf-fallback{padding:16px}}


/* Ushtrime të zgjidhura: zbulim progresiv me rreshta, pa server */
.cards{grid-template-columns:repeat(4,minmax(0,1fr))}
.exercise-guidance{display:flex;gap:20px;background:#edf3f8;border:1px solid #d7e2eb;border-radius:12px;padding:22px 25px;align-items:start;margin:0 0 26px}
.guide-number{font:normal 26px Georgia;color:#b69055;padding-right:15px;border-right:1px solid #cad8e6}
.exercise-guidance strong{font-size:15px}.exercise-guidance p{font-size:13px;color:#61728a;line-height:1.75;margin:7px 0 0}
.exercise-filters{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 10px}
.ex-filter{padding:12px 17px;border:1px solid #d4dee9;background:#fff;color:#334c67;border-radius:999px;font-size:13px;font-weight:700}
.ex-filter.active,.ex-filter[aria-pressed="true"]{background:#203a5b;color:#fff;border-color:#203a5b}
.ex-filter:focus-visible,.exercise-top:focus-visible,.exercise-controls button:focus-visible{outline:3px solid #dfb978;outline-offset:3px}
.exercise-summary{font-size:13px;color:#75859a;margin:15px 0 20px}
.exercise-list{display:grid;gap:17px}
.exercise-card{background:white;border:1px solid #e2e8ef;border-radius:13px;overflow:hidden;box-shadow:0 6px 20px rgba(24,38,54,.025)}
.exercise-card[hidden],.exercise-body[hidden],.exercise-row[hidden],.exercise-warning[hidden]{display:none!important}
.exercise-card.open{border-color:#a8bfd4;box-shadow:0 7px 24px rgba(23,43,66,.07)}
.exercise-top{display:flex;gap:17px;align-items:center;width:100%;border:0;background:#fff;text-align:left;padding:24px 27px;color:#172b46;cursor:pointer}
.exercise-top:hover{background:#f9fbfd}.exercise-number{font:normal 27px Georgia;color:#bb945a;min-width:48px}
.exercise-name{display:grid;gap:6px;flex:1;min-width:0}.exercise-title{font:normal 22px Georgia;line-height:1.35}.exercise-meta{font-size:11px;letter-spacing:.03em;color:#7d8a9b;line-height:1.6}
.exercise-chevron{color:#926b34;font-size:24px;transition:transform .2s}.exercise-card.open .exercise-chevron{transform:rotate(90deg)}
.exercise-body{border-top:1px solid #e7edf3;padding:26px 31px 30px}
.exercise-problem{background:#f5f8fc;border-left:3px solid #315878;padding:18px 24px;margin-bottom:16px;color:#213853}
.exercise-problem .exercise-problem-label{font-size:11px;letter-spacing:.1em;color:#657e96;font-weight:700}
.exercise-problem .exercise-math{font-size:1.12rem;overflow-x:auto;min-height:36px}
.exercise-intro{color:#53677e;font-size:13px;line-height:1.75;margin:14px 0}
.exercise-steps{list-style:none;margin:20px 0;padding:0;display:grid;gap:9px}
.exercise-row{display:grid;grid-template-columns:46px minmax(0,1fr);gap:15px;background:#fff;border:1px solid #e3eaf1;border-radius:9px;padding:17px 20px;animation:step-slide .23s ease-out both}
@keyframes step-slide{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
.exercise-step-n{display:grid;place-items:center;border-radius:7px;background:#eaf0f6;color:#3a5875;font-size:11px;font-weight:800;height:36px;width:36px}
.exercise-row.last{background:#f3f9f5;border-color:#c5e1d1}
.exercise-row.last .exercise-step-n{background:#d3e9d9;color:#287346}
.exercise-step-title{font-size:14px;font-weight:800;color:#223b57;margin:5px 0 9px}
.exercise-step-math{font-size:1.11rem;overflow-x:auto;line-height:1.8}
.exercise-step-why{font-size:13px;color:#5d6f83;line-height:1.75;margin:9px 0 3px}
.exercise-controls{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin-top:17px}
.exercise-controls button{min-height:42px;padding:11px 16px;font-size:13px}
.exercise-progress{font-size:13px;color:#536d87;margin:15px 0 0;font-weight:700}
.exercise-warning{background:#fff9ed;border:1px solid #e7d7b5;color:#725b33;padding:14px 17px;border-radius:9px;font-size:13px;line-height:1.7;margin-top:16px}
.exercise-disclaimer{margin-top:32px;border-left:3px solid #b79661;background:#faf7f1;padding:18px;font-size:13px;color:#68768a;line-height:1.7}
.exercise-bridge{display:flex;justify-content:space-between;align-items:center;gap:18px;margin:35px 0;background:#eef4f9;border:1px solid #dbe7f1;border-radius:14px;padding:23px 26px}
.exercise-bridge h2{margin:9px 0;font:normal 24px Georgia}.exercise-bridge p{font-size:13px;line-height:1.6;color:#64778b;max-width:680px;margin:0}
.exercise-bridge .primary-btn{flex-shrink:0;font-size:12px}
@media(max-width:1250px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:850px){.cards{grid-template-columns:1fr}}
@media(max-width:700px){.exercise-bridge{display:block}.exercise-bridge .primary-btn{margin-top:20px;display:inline-block}.exercise-top{padding:18px 14px;gap:9px}.exercise-title{font-size:18px}.exercise-number{font-size:21px;min-width:35px}.exercise-body{padding:20px 13px}.exercise-row{grid-template-columns:30px 1fr;padding:15px 10px;gap:10px}.exercise-step-n{width:29px;height:29px}.exercise-step-math{font-size:1rem}.exercise-problem{padding:15px 10px}}
@media(prefers-reduced-motion:reduce){.exercise-row{animation:none}}

/* Protokolli akademik: teorema, hipoteza, vërtetim, kundërshembull */
.academic-callout{background:#fff;border:1px solid #d9e3ed;border-left:4px solid #b28c50;padding:29px 32px;margin:35px 0;border-radius:12px;box-shadow:0 6px 28px rgba(23,40,62,.035)}
.academic-callout h2{font:normal clamp(23px,3vw,32px) Georgia,serif;line-height:1.35;color:#1b304b;margin:12px 0}
.academic-callout p{color:#607186;font-size:14px;line-height:1.9;max-width:900px}
.academic-callout-actions{display:flex;align-items:center;flex-wrap:wrap;gap:13px;margin-top:18px}
.academic-callout-actions a{display:inline-flex;padding:12px 17px;min-height:43px;text-decoration:none;align-items:center;font-size:13px}
.proof-intro,.academic-reference{padding:19px 23px;background:#ecf3f8;border:1px solid #d7e4ef;color:#36526d;line-height:1.8;font-size:13px;margin:15px 0 27px;border-radius:10px}
.academic-reference{margin-top:28px;background:#fff;color:#61768a}
.proof-tools{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}
.proof-filter{padding:12px 18px;border-radius:22px;color:#284662;border:1px solid #d6e2eb;background:#fff;font-size:13px;font-weight:700;cursor:pointer}
.proof-filter.active{background:#203a5b;color:#fff;border-color:#203a5b}
.proof-list,.logic-list{display:grid;gap:17px}
.proof-card,.logic-card{background:#fff;border:1px solid #dde6ed;border-radius:13px;overflow:hidden;box-shadow:0 5px 18px rgba(24,46,67,.035)}
.proof-card[hidden],.proof-body[hidden],.proof-step[hidden],.proof-limit[hidden],.logic-result[hidden]{display:none!important}
.proof-toggle{display:flex;align-items:center;gap:20px;padding:23px 26px;width:100%;border:0;background:#fff;cursor:pointer;text-align:left;color:#17304d}
.proof-toggle:hover{background:#f8fbfd}
.proof-ordinal{font:normal 26px Georgia;color:#b58d50;min-width:44px}
.proof-title{display:grid;gap:7px;flex:1}
.proof-title>span{font:normal 22px/1.35 Georgia,serif}
.proof-title small{font-size:11px;color:#8090a3;letter-spacing:.04em}
.proof-toggle>span:last-child{font-size:24px;color:#9aa8b9}
.proof-body{padding:25px 30px 30px;border-top:1px solid #e1e9ef}
.proof-hyp,.proof-claim{padding:18px 20px;background:#f5f9fc;border-left:3px solid #476b91;margin-bottom:12px;border-radius:5px}
.proof-hyp p{font-size:14px;line-height:1.9;color:#435b73;margin:10px 0 0}
.proof-claim{background:#f8f6f1;border-left-color:#b88f54;overflow-x:auto}
.proof-claim .MathJax{max-width:100%}
.proof-direction{font-size:12px;font-weight:800;letter-spacing:.07em;color:#74889c;margin:25px 0 16px;text-transform:uppercase}
.proof-steps{display:grid;gap:10px;list-style:none;padding:0;margin:0}
.proof-step{display:grid;grid-template-columns:42px minmax(0,1fr);gap:13px;border:1px solid #dfe8ef;border-radius:9px;padding:17px;background:#fff}
.proof-step-num{width:34px;height:34px;display:grid;place-items:center;border-radius:6px;color:#315778;background:#ecf3f8;font-size:12px;font-weight:800}
.proof-step h3{margin:3px 0 12px;font-size:15px;color:#2e4966}
.proof-step-math{overflow-x:auto;padding:3px 0;font-size:1.02rem}
.proof-step p{color:#5d7287;line-height:1.8;font-size:13px;margin:10px 0 0}
.proof-controls{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.proof-controls button{padding:12px 16px;min-height:42px;cursor:pointer;font-size:13px}
.proof-controls button:disabled{opacity:.4;cursor:not-allowed}
.proof-progress{color:#5e758a;font-size:13px;font-weight:700}
.proof-limit{background:#fff8e8;border:1px solid #e7d7b5;border-radius:8px;padding:19px;line-height:1.8;color:#675532;font-size:13px;margin-top:14px}
.logic-card{padding:24px 28px}
.logic-statement{overflow-x:auto;color:#213b57;margin:16px 0}
.logic-actions{display:flex;gap:10px;flex-wrap:wrap}
.logic-answer{cursor:pointer;padding:12px 16px;background:#f3f7fa;border:1px solid #dae4ed;border-radius:7px;color:#234564;font-size:13px;font-weight:700}
.logic-answer.selected{border-color:#254b72;background:#dfeafa}
.logic-result{line-height:1.8;font-size:13px;padding:16px 19px;border-radius:7px;margin-top:17px}
.logic-result.correct,.checkpoint-feedback.correct{background:#eaf6f0;color:#286749;border:1px solid #cce9d6}
.logic-result.incorrect,.checkpoint-feedback.incorrect{background:#fff1eb;color:#905540;border:1px solid #f1d9cf}
.logic-score{background:#f0f5f9;margin-top:17px;padding:18px 22px;border:1px solid #dfe8ef;border-radius:7px;font-size:13px;color:#3f5d79}
.exercise-checkpoint{background:#f7f9fd;border:1px solid #dce6f0;border-radius:9px;padding:20px 22px;margin:19px 0}
.exercise-checkpoint .checkpoint-q{font-size:14px;line-height:1.7;color:#304c67;font-weight:700;margin:10px 0 14px}
.checkpoint-opts{display:grid;gap:9px;margin-bottom:14px}
.checkpoint-opts label{cursor:pointer;background:#fff;border:1px solid #e1e7ec;padding:10px 14px;display:flex;align-items:center;gap:11px;border-radius:6px;font-size:13px;color:#394f67}
.checkpoint-opts label:has(input:checked){background:#eaf2f9;border-color:#6c8fb2}
.checkpoint-opts input{accent-color:#244a70}
.checkpoint-check{padding:10px 15px;font-size:12px}
.checkpoint-feedback{padding:10px 14px;font-size:12px;line-height:1.7;margin:11px 0 0}
.checkpoint-feedback:empty{display:none}
.lab-secondary{background:#fff;border:1px solid #dce5ed;border-radius:14px;padding:30px 28px;margin-top:34px}
.lab-secondary h2{font:normal clamp(25px,3vw,32px) Georgia,serif;color:#1b324b;margin:8px 0}
.lab-secondary-sub{font-size:14px;line-height:1.9;color:#5a6b7f;margin:10px 0 22px}
.plab-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:18px}
.plab-grid .lab-result,.plab-grid .lab-panel{min-width:0}
.proof-clause{font-size:13px;line-height:1.75;color:#53697e;margin-top:18px}
#p-chart{width:100%;height:auto}
.proof-filter:focus-visible,.proof-toggle:focus-visible,.proof-controls button:focus-visible,.logic-answer:focus-visible,.checkpoint-check:focus-visible{outline:3px solid #daa959;outline-offset:3px}
@media(max-width:1080px){.plab-grid{grid-template-columns:1fr}.academic-callout{padding:25px 22px}}
@media(max-width:700px){.proof-body{padding:19px 13px}.proof-toggle{gap:9px;padding:16px 14px}.proof-title>span{font-size:18px}.proof-ordinal{font-size:21px;min-width:31px}.proof-step{grid-template-columns:29px minmax(0,1fr);padding:13px 8px}.proof-step-num{width:27px;height:27px}.logic-card{padding:17px 13px}.exercise-checkpoint{padding:14px 11px}.lab-secondary{padding:21px 14px}.proof-claim{padding:14px 9px}}

/* Fletore PDF - shtesë pa ndryshuar modulet ekzistuese */
.exercise-pdf-panel { margin: 1.3rem 0 1.6rem; padding: 1.8rem; background:#f6f8fb; border:1px solid #dce3ed; border-left:4px solid #b79557; border-radius:10px; }
.exercise-pdf-panel h2 { margin:.55rem 0 .45rem; font-size:clamp(1.3rem,2.2vw,1.8rem); color:#1c2d46; }
.exercise-pdf-panel p { max-width:80ch; line-height:1.75; color:#56647b; }
.exercise-pdf-links { display:flex; flex-wrap:wrap; gap:.7rem; align-items:center; margin-top:1rem; }
.exercise-pdf-links a { white-space:normal; text-align:center; }
.pdf-library-head { margin-top:2.7rem; }
@media(max-width:720px) {.exercise-pdf-panel {padding:1rem;} .exercise-pdf-links a{width:100%;}}

/* Identifikimi i autores dhe i botimit akademik */
.brand-author{display:block;margin-top:6px;font-size:10px!important;letter-spacing:.025em!important;line-height:1.4;color:#d7c29f!important;text-transform:none!important;}
.academic-byline{display:flex;flex-direction:column;gap:5px;margin:0 0 23px;border-left:3px solid #cda361;padding:10px 14px;background:rgba(255,255,255,.62);max-width:570px;}
.academic-byline span{font-size:11px;letter-spacing:.07em;color:#6b7280;text-transform:uppercase;}
.academic-byline strong{font-size:20px;letter-spacing:.005em;color:#1c2a45;font-family:Georgia,serif;}
@media(max-width:700px){.academic-byline strong{font-size:17px}.academic-byline span{font-size:10px}}

/* Identiteti akademik, i dukshëm menjëherë në hapjen e platformës */
.hero-author-signature{display:flex;flex-direction:column;gap:5px;margin:-4px 0 25px;padding:16px 20px;border-left:4px solid #ba9254;background:#fff;box-shadow:0 5px 22px rgba(19,39,65,.065);max-width:555px}
.hero-author-signature span{font-size:11px;letter-spacing:1.35px;font-weight:800;color:#97723c}
.hero-author-signature strong{font:normal clamp(23px,2.3vw,32px) Georgia,'Times New Roman',serif;color:#162b48;line-height:1.22}
.hero-author-signature small{font-size:12px;color:#65758a}
.library-author{font-size:15px;line-height:1.6;color:#485971;margin:5px 0 12px}.library-author strong{font-family:Georgia,serif;font-size:19px;color:#18304c}
.header-author{font-weight:700;color:#2d435d;white-space:nowrap}
@media(max-width:700px){.hero-author-signature{margin:0 0 19px;padding:14px 15px}.hero-author-signature strong{font-size:25px}.hero-author-signature span{font-size:10px}.hero-author-signature small{font-size:11px}.header-author{font-size:11px;max-width:190px;white-space:normal;text-align:right}}

/* AM3: typographic math policy 2026-11 */
.math, .math-display, .eq, mjx-container[display="true"] {max-width:100%;}
.math-display, .eq, mjx-container[display="true"] {overflow-x:auto; overflow-y:hidden; -webkit-overflow-scrolling:touch; padding: .45rem .18rem;}
@media(max-width:680px){.math-display,.eq{font-size: .94em;} article, main, .content{min-width:0;} img{max-width:100%;height:auto;}}