:root{--bg:#f5f7f9;--surface:#fff;--ink:#183137;--muted:#7b888e;--line:#e6ecee;--nav:#102b2e;--lime:#c8f27c;--accent:#1c6a58;--accent-bg:#eff7e7;--purple:#8b70ca;--teal:#3a9b90;--blue:#5e8fce;--orange:#d19b54;--red:#c6555d;--red-bg:#fff0f0;--shadow:0 7px 25px #17333705;--radius:20px;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"Segoe UI",Arial,sans-serif;font-size:14px;line-height:1.55}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #9ecf68;outline-offset:4px}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{line-height:1.22;letter-spacing:-.035em}h1{font-size:34px;font-weight:650}h2{font-size:22px;font-weight:650}h3{font-size:17px;font-weight:650}p{line-height:1.7}svg{display:inline-block;flex-shrink:0;vertical-align:middle}small,.small{font-size:12px}.muted{color:var(--muted)}.eyebrow{display:block;font-size:10px;font-weight:750;letter-spacing:1.8px;text-transform:uppercase;color:var(--accent);margin-bottom:12px}.pill{display:inline-flex;align-items:center;gap:7px;border-radius:40px;padding:6px 11px;font-size:10px;letter-spacing:.4px;font-weight:650;background:var(--accent-bg);color:var(--accent)}.pill.light{background:#ffffff12;color:#d2e8df;border:1px solid #ffffff1a}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--lime)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:43px;padding:11px 19px;border:1px solid var(--line);border-radius:11px;background:var(--surface);color:var(--ink);font-size:12px;font-weight:650;line-height:1.3;transition:transform .16s,background .16s}.btn:hover{transform:translateY(-1px);background:var(--bg)}.btn.primary{background:var(--nav);color:#fff;border-color:var(--nav)}.btn.primary:hover{background:#204b46}.btn.lime{background:var(--lime);color:#143437;border-color:var(--lime)}.btn.lime:hover{background:#d3f99b}.btn.ghost{background:transparent;border-color:transparent}.btn.danger{color:var(--red);border-color:#e8c5c8}.btn.small-btn{min-height:34px;padding:7px 12px;font-size:11px}.btn.full{width:100%}.icon-btn{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:var(--surface);display:inline-flex;align-items:center;justify-content:center;color:var(--ink);flex-shrink:0}.icon-btn:hover{background:var(--bg)}.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--accent);font-size:12px;font-weight:650}.text-link:hover{text-decoration:underline}.brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:750;line-height:1.02;letter-spacing:-.7px}.brand img{border-radius:12px;flex-shrink:0}.brand-sub{display:block;font-size:16px;line-height:1.25;font-weight:500}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px}.card-head p{font-size:12px;color:var(--muted);margin-top:5px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:30px 0 16px}.section-title h2{font-size:20px}.section-title p{color:var(--muted);font-size:12px;margin-top:5px}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:26px}.page-head h1{font-size:32px}.page-head p{color:var(--muted);font-size:13px;margin-top:9px}.flex{display:flex;align-items:center;gap:12px}.wrap{flex-wrap:wrap}.stack{display:flex;flex-direction:column;gap:18px}.space-top{margin-top:22px}.space-bottom{margin-bottom:22px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.span2{grid-column:1/-1}label{display:flex;flex-direction:column;gap:8px;font-size:12px;font-weight:650}input,select,textarea{width:100%;background:var(--surface);border:1px solid #dce5e7;color:var(--ink);border-radius:10px;padding:12px 13px;font-size:13px;min-width:0}input::placeholder,textarea::placeholder{color:#a1acb1}textarea{resize:vertical;min-height:100px;line-height:1.65}select[multiple]{min-height:150px}input:focus,textarea:focus,select:focus{border-color:var(--accent);outline:2px solid #5a9a7720;outline-offset:0}.alert{padding:13px 16px;border-radius:11px;background:#edf4ff;color:#4c6e9d;font-size:12px;line-height:1.65}.alert.error{color:#a1444b;background:var(--red-bg)}.alert.success{color:#267054;background:#edf7e9}.alert.neutral{background:var(--bg);color:var(--muted)}.empty{text-align:center;padding:55px 25px}.empty-icon{display:flex;width:58px;height:58px;align-items:center;justify-content:center;border-radius:18px;background:var(--accent-bg);color:var(--accent);margin:0 auto 17px}.empty h2{font-size:21px}.empty p{max-width:430px;margin:10px auto 22px;color:var(--muted);font-size:13px}.skip-link{position:fixed;top:-60px;left:20px;padding:12px;background:var(--lime);z-index:100}.skip-link:focus{top:10px}
/* Navigation */
.app-layout{display:flex;min-height:100vh}.sidebar{width:240px;position:fixed;inset:0 auto 0 0;background:var(--nav);color:#aac0bf;padding:35px 23px 22px;display:flex;flex-direction:column;z-index:40;overflow-y:auto}.sidebar .brand{color:#f2f7ef;margin-bottom:40px}.sidebar-label{font-size:8px;letter-spacing:1.6px;font-weight:600;color:#6d8a8b;padding:0 13px;margin-bottom:11px;margin-top:4px}.sidebar nav{display:flex;flex-direction:column;gap:5px;margin-bottom:22px}.sidebar nav a{display:flex;align-items:center;gap:12px;border-radius:10px;padding:11px 12px;font-size:11px;font-weight:500;transition:background .15s,color .15s}.sidebar nav a:hover{background:#ffffff08;color:#fff}.sidebar nav a.active{background:#c8f27c15;color:var(--lime)}.sidebar nav svg{width:17px;height:17px;opacity:.9}.sidebar nav b{margin-left:auto;color:var(--lime);background:#c8f27c18;min-width:20px;border-radius:5px;text-align:center;font-size:9px;padding:2px 4px}.sidebar-tip{padding:17px 14px 16px;background:#ffffff06;border:1px solid #ffffff0d;border-radius:13px;margin-top:auto}.sidebar-tip>span{color:var(--lime);font-size:20px}.sidebar-tip strong{display:block;color:#d6e8e3;font-weight:550;font-size:11px;margin:6px 0}.sidebar-tip p{color:#7f9b9b;font-size:10px;line-height:1.7}.sidebar-bottom{padding:25px 12px 0}.sidebar-bottom strong{font-size:14px;color:#cfdfd9;letter-spacing:1px}.sidebar-bottom strong span{font-size:8px;letter-spacing:1.6px;font-weight:500}.sidebar-bottom small{display:block;font-size:8px;color:#718b8b;margin-top:1px}.version{font-size:8px;display:block;color:#557476;margin-top:12px}.workspace{width:calc(100% - 240px);margin-left:240px;min-height:100vh;display:flex;flex-direction:column}.topbar{height:85px;background:var(--surface);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 36px;gap:15px}.topbar-left,.topbar-actions{display:flex;align-items:center;gap:17px}.topbar-title{font-size:12px;font-weight:600}.topbar-caption{font-size:8px;color:var(--muted);letter-spacing:1.5px;font-weight:500}.topbar-divider{height:15px;width:1px;background:var(--line)}.saved-indicator{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:6px}.saved-indicator i{width:5px;height:5px;border-radius:50%;background:#69a889}.avatar{display:flex;align-items:center;justify-content:center;border-radius:50%;width:35px;height:35px;background:#efeee6;color:#8c876d;font-size:13px;font-weight:650}.menu-toggle{display:none}#main{padding:33px 36px 30px;width:100%;max-width:1420px;margin:0 auto;outline:none;flex:1}.app-footer{padding:0 36px 22px;color:#9aa7ac;font-size:9px;display:flex;justify-content:space-between;gap:20px}.mobile-nav{display:none}.drawer-backdrop{position:fixed;inset:0;background:#071b2555;z-index:39;border:0}
/* Dashboard */
.greeting{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}.greeting h1{font-size:30px}.greeting p{color:var(--muted);font-size:12px;margin-top:7px}.date-tag{font-size:10px;color:var(--muted);background:var(--surface);padding:8px 11px;border-radius:8px;border:1px solid var(--line);white-space:nowrap}.hero{border-radius:22px;min-height:232px;overflow:hidden;display:grid;grid-template-columns:1.3fr 1fr;background:#e8eddf;position:relative;border:1px solid #dfe6d4}.hero-copy{padding:31px 32px;z-index:1}.hero-copy .eyebrow{font-size:9px;letter-spacing:1.7px;color:#68825e;margin-bottom:12px}.hero h2{font-size:33px;line-height:1.2;letter-spacing:-1.2px;max-width:430px;font-weight:600}.hero h2 em{font-style:normal;color:#45734f}.hero p{font-size:11px;color:#74806c;max-width:340px;margin:12px 0 20px}.hero .btn{font-size:11px;min-height:39px;padding:10px 17px}.hero-art{position:relative;display:flex;align-items:center;justify-content:center;min-height:230px;background-image:linear-gradient(#a8b99a14 1px,transparent 1px),linear-gradient(90deg,#a8b99a14 1px,transparent 1px);background-size:25px 25px;mask-image:linear-gradient(90deg,transparent,#000 35%)}.hero-orbit{position:absolute;border:1px solid #bac9ac;border-radius:50%;width:255px;height:255px;transform:rotate(-23deg)}.hero-orbit:after{content:'';position:absolute;border:1px solid #c2ceb4;border-radius:50%;inset:25px}.hero-orbit:before{content:'✦';color:#88a573;position:absolute;top:6px;left:50px;font-size:23px}.hero-number{width:148px;height:168px;display:flex;align-items:center;justify-content:center;flex-direction:column;border-radius:22px;background:#f7f9f0;border:1px solid #fff;box-shadow:0 12px 25px #43593412;transform:rotate(-8deg);position:relative}.hero-number small{font-size:7px;letter-spacing:1.3px;color:#819276}.hero-number strong{font-size:73px;font-weight:600;letter-spacing:-6px;line-height:1.35;color:#31533d}.hero-number>span{font-size:8px;color:#819276}.floating-tag{position:absolute;border-radius:8px;padding:8px 11px;background:#fff;color:#6a7d60;font-size:8px;border:1px solid #e4eadc;box-shadow:var(--shadow);display:flex;align-items:center;gap:5px;z-index:3}.floating-tag.tag1{top:41px;right:18px;transform:rotate(6deg)}.floating-tag.tag2{bottom:35px;left:6px;transform:rotate(-5deg)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}.stat{padding:19px 21px;display:flex;gap:14px;align-items:center}.stat-icon{width:37px;height:37px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--bg);color:#68817f}.stat strong{display:block;font-size:24px;font-weight:600;line-height:1.2;letter-spacing:-1px}.stat span{display:block;font-size:9px;color:var(--muted);margin-top:5px}.stat small{font-size:11px;color:var(--muted);letter-spacing:0}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1fr) 286px;gap:21px;margin-top:27px}.dashboard-main,.dashboard-aside{min-width:0}.subject-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.subject-card{position:relative;padding:21px;display:flex;flex-direction:column;min-height:210px;transition:border-color .2s,transform .2s}.subject-card:hover{border-color:#b7c8bd;transform:translateY(-2px)}.subject-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:19px}.subject-icon{display:flex;align-items:center;justify-content:center;border-radius:12px;width:43px;height:43px}.subject-card h3{font-size:17px}.subject-card p{font-size:10px;color:var(--muted);margin-top:5px;line-height:1.6;min-height:32px}.subject-card .subject-progress{margin-top:20px}.subject-meta{display:flex;align-items:center;justify-content:space-between;font-size:9px;color:var(--muted);margin-bottom:9px}.subject-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:13px;font-size:9px;color:var(--muted)}.subject-bottom span:last-child{color:var(--accent);font-weight:600}.purple .subject-icon,.purple .topic-symbol{color:#8d70bd;background:#f1ecfa}.teal .subject-icon,.teal .topic-symbol{color:#38978d;background:#e6f4f0}.blue .subject-icon,.blue .topic-symbol{color:#5a8ec6;background:#e9f0fb}.orange .subject-icon,.orange .topic-symbol{color:#c18e4c;background:#faf0de}progress{appearance:none;-webkit-appearance:none;border:0;height:5px;width:100%;display:block;background:var(--line);border-radius:10px;overflow:hidden}progress::-webkit-progress-bar{background:var(--line);border-radius:10px}progress::-webkit-progress-value{background:#72997e;border-radius:10px}progress::-moz-progress-bar{background:#72997e;border-radius:10px}.purple progress::-webkit-progress-value{background:#b59bdc}.teal progress::-webkit-progress-value{background:#7ab5ab}.blue progress::-webkit-progress-value{background:#8bb0db}.orange progress::-webkit-progress-value{background:#d9b67d}.goal-card{background:var(--nav);color:#f0f6ec;border:0;position:relative;overflow:hidden;padding:24px}.goal-card .eyebrow{font-size:8px;color:#98b4a4;letter-spacing:1.5px}.goal-card h3{font-size:20px}.goal-card p{color:#91aca3;font-size:10px;max-width:200px;margin:9px 0 22px}.goal-ring{width:114px;height:114px;border:7px solid #ffffff10;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-direction:column;margin:0 auto 20px;box-shadow:inset 0 0 0 1px #d2efba10}.goal-ring b{font-size:29px;line-height:1.2;font-weight:550;letter-spacing:-1px}.goal-ring small{font-size:8px;color:#a8bcb0;margin-top:5px}.goal-card progress{height:4px;background:#ffffff1a;margin:17px 0}.goal-card progress::-webkit-progress-bar{background:#ffffff1a}.goal-card progress::-webkit-progress-value{background:var(--lime)}.goal-card .btn{font-size:10px;width:100%;min-height:37px}.goal-count{display:flex;justify-content:space-between;font-size:10px;color:#9db7ac;margin-top:12px}.goal-count strong{color:var(--lime)}.mini-card{padding:20px;margin-top:16px}.mini-card h3{font-size:13px}.mini-card p{color:var(--muted);font-size:10px;margin:8px 0 13px}.mini-card .text-link{font-size:10px}.spark{color:#a2ba80;font-size:24px}.activity-card{margin-top:20px}.activity-legend{color:var(--muted);font-size:9px;display:flex;align-items:center;gap:6px}.activity-legend i{width:6px;height:6px;border-radius:2px;background:#b0c99a}.activity-chart{display:grid;grid-template-columns:repeat(7,1fr);gap:15px;align-items:end;height:120px;padding-top:5px}.bar-column{height:110px;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:7px}.bar-value{font-size:8px;color:var(--muted)}.bar-wrap{height:70px;width:100%;max-width:45px;display:flex;align-items:flex-end;border-bottom:1px solid var(--line)}.bar-fill{width:100%;height:4px;background:#d3e3c8;border-radius:4px 4px 0 0}.bar-fill.today{background:#8eaf73}.bar-label{font-size:8px;color:var(--muted)}.recent-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}.recent-row:last-child{border-bottom:0;padding-bottom:0}.recent-row h4{font-size:12px;letter-spacing:0}.recent-row p{font-size:10px;color:var(--muted);margin-top:5px}.row-icon{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:#779087;flex-shrink:0}.recent-row .flex{min-width:0}.recent-row .flex>div:last-child{min-width:0}.recent-row h4{overflow-wrap:anywhere}
/* Lessons and collections */
.filters{display:flex;gap:8px;flex-wrap:wrap}.filter{display:inline-flex;align-items:center;gap:7px;padding:9px 14px;min-height:37px;border-radius:9px;border:1px solid var(--line);background:var(--surface);color:var(--muted);font-size:11px}.filter.active{background:var(--nav);border-color:var(--nav);color:#fff}.filter b{font-size:9px;opacity:.6;font-weight:500}.topic-toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:22px}.search{position:relative;width:220px}.search input{padding-left:34px;font-size:11px}.search svg{position:absolute;left:12px;top:13px;color:var(--muted)}.topics-list{display:grid;grid-template-columns:1fr 1fr;gap:13px}.topic-row{padding:20px;display:grid;grid-template-columns:37px minmax(0,1fr) auto;gap:14px;align-items:center}.topic-symbol{width:35px;height:35px;border-radius:11px;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:600}.topic-row h3{font-size:13px;line-height:1.4;letter-spacing:-.2px}.topic-row p{font-size:9px;color:var(--muted);margin:5px 0 10px}.topic-row progress{height:3px}.topic-row .icon-btn{width:29px;height:29px;border:0;font-size:16px}.topic-row:hover{border-color:#b6c7b9}.topic-hero{background:#ecf2e7;border-color:#dfe7d7}.topic-hero h1{font-size:30px;margin:14px 0}.topic-hero p{max-width:760px;font-size:13px;line-height:1.9;color:#73826d}.topic-hero .flex{margin-top:23px}.lesson-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:22px}.lesson-card{padding:25px}.lesson-number{display:inline-block;color:#86a076;font-size:10px;letter-spacing:1px;margin-bottom:12px}.lesson-card h3{font-size:17px;margin-bottom:12px}.lesson-card p{font-size:12px;line-height:1.9;color:var(--muted)}.source-links{display:flex;flex-wrap:wrap;gap:10px}.source-links a{font-size:10px;line-height:1.5;padding:8px 11px;background:var(--bg);border-radius:8px;color:var(--accent);border:1px solid var(--line)}.source-links a:hover{text-decoration:underline}.collection-row{display:grid;grid-template-columns:1fr auto;align-items:center;gap:18px;border-bottom:1px solid var(--line);padding:20px 0}.collection-row:first-child{padding-top:0}.collection-row:last-child{border-bottom:0;padding-bottom:0}.collection-row h3{font-size:13px;line-height:1.6;letter-spacing:0}.collection-row p{font-size:10px;color:var(--muted);margin-top:8px}.collection-row .note-preview{margin-top:10px;padding:10px 12px;background:var(--bg);border-radius:8px;white-space:pre-wrap;overflow-wrap:anywhere}.count-bubble{font-size:13px;font-weight:600;background:var(--accent-bg);padding:4px 10px;border-radius:8px;color:var(--accent)}.source-card h3{font-size:14px}.source-card p{margin:10px 0 14px;font-size:11px;color:var(--muted)}.source-card a{font-size:10px;color:var(--accent);overflow-wrap:anywhere}.source-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.source-card{min-width:0}.topic-intro{display:block;color:var(--muted);font-size:11px;line-height:1.8;margin-top:10px}.badge{display:inline-block;font-size:9px;border-radius:6px;padding:4px 7px;background:var(--bg);color:var(--muted);line-height:1.3}.badge.green{color:#39845c;background:#edf6e7}.badge.red{color:#b65d65;background:#fbedee}
/* Quiz */
.quiz-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:22px;align-items:start}.quiz-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;gap:14px}.quiz-top h1{font-size:24px}.quiz-top p{font-size:11px;color:var(--muted);margin-top:5px}.timer{font-size:12px;font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:8px;padding:10px 13px;background:var(--surface);border:1px solid var(--line);border-radius:10px;white-space:nowrap}.timer.urgent{color:var(--red);border-color:#dba5ad}.quiz-progress{margin-bottom:22px}.quiz-progress-meta{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-bottom:10px}.question-card{padding:30px}.question-meta{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:22px}.question-meta .flex{gap:7px;flex-wrap:wrap}.question-stem{font-size:18px;line-height:1.8;letter-spacing:-.2px;font-weight:550;margin-bottom:27px;white-space:pre-wrap}.options{display:flex;flex-direction:column;gap:11px}.option{display:flex;align-items:center;gap:14px;width:100%;text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:14px 16px;color:var(--ink);font-size:13px;transition:background .15s,border-color .15s;line-height:1.6}.option:hover:not(:disabled){background:var(--bg);border-color:#a9c198}.option:disabled{cursor:default;opacity:1}.option-letter{width:29px;height:29px;min-width:29px;display:flex;align-items:center;justify-content:center;border-radius:8px;border:1px solid var(--line);font-weight:600;font-size:11px;background:var(--bg)}.option-text{flex:1}.option-status{font-size:17px}.option.correct{border-color:#95bf8f;background:#f3f9ef}.option.correct .option-letter{background:#dcefd1;border-color:#dcefd1;color:#3b7143}.option.wrong{border-color:#e4b1b8;background:#fff5f5}.option.wrong .option-letter{background:#f7dfe3;border-color:#f7dfe3;color:#a34a59}.option.selected{border-color:#9bb7ce;background:#f1f6fb}.question-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:24px}.question-actions .btn{font-size:11px}.quiz-aside .card{padding:20px}.quiz-aside h3{font-size:13px;margin-bottom:8px}.quiz-aside p{font-size:10px;color:var(--muted)}.question-map{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:20px 0}.question-map button{min-height:31px;border-radius:7px;background:var(--bg);border:1px solid var(--line);color:var(--muted);font-size:10px}.question-map button.current{border:2px solid #64866b;color:var(--accent)}.question-map button.done{background:#e7f2de;border-color:#e7f2de;color:#5c8054}.question-map button.mistake{background:#fae5e7;border-color:#fae5e7;color:#a86b72}.question-map button.skipped{background:#f7eedc;border-color:#f7eedc;color:#a58d56}.map-legend{display:flex;flex-wrap:wrap;gap:9px;font-size:8px;color:var(--muted);margin-bottom:17px}.map-legend span{display:flex;gap:4px;align-items:center}.map-legend i{width:5px;height:5px;border-radius:2px;background:#e7f2de}.map-legend span:nth-child(2) i{background:#fae5e7}.quiz-aside .btn{font-size:10px}.quiz-tip{margin-top:18px;padding:20px!important;background:#edf2e8;border-color:#e0e7d9}.quiz-tip h3{color:#526b49}.quiz-tip p{color:#7f9074;line-height:1.85;margin-top:10px}.feedback{margin-top:20px}.feedback-banner{background:#edf5e8;border:1px solid #dbe8d0;color:#386d40;border-radius:15px;padding:19px 23px;display:flex;gap:13px;align-items:center}.feedback-banner.incorrect{color:#af5966;background:#fdf0f2;border-color:#f0dce1}.feedback-banner.neutral{color:#8e804f;background:#faf5e9;border-color:#eee5d2}.feedback-banner h2{font-size:17px}.feedback-banner p{font-size:11px;color:inherit;opacity:.8;margin-top:5px}.explanation-card{padding:26px;margin-top:15px}.explanation-card h3{font-size:16px;margin-bottom:14px}.explanation-card>p{font-size:13px;line-height:1.95;color:var(--muted)}.takeaway{border-left:3px solid #b1cb8c;background:var(--accent-bg);padding:14px 17px;border-radius:0 8px 8px 0;margin-top:20px}.takeaway strong{font-size:10px;display:block;color:var(--accent);margin-bottom:6px}.takeaway p{font-size:12px;color:#6a805d}.explanation-options{margin-top:23px;border-top:1px solid var(--line)}.explanation-option{padding:16px 0;border-bottom:1px solid var(--line);display:flex;gap:12px;align-items:flex-start}.explanation-option .option-letter{font-size:10px;width:25px;height:25px;min-width:25px}.explanation-option h4{font-size:12px;letter-spacing:0;margin:3px 0 7px}.explanation-option p{font-size:11px;color:var(--muted);line-height:1.85}.explanation-sources{margin-top:20px}.explanation-sources .small{display:block;margin-bottom:10px;color:var(--muted);font-size:10px}.lesson-inline{margin-top:16px;background:var(--bg);border-radius:10px;padding:15px}.lesson-inline summary{cursor:pointer;font-size:12px;font-weight:600}.lesson-inline p{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.85}.answer-saved{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:5px;margin-top:17px}.review-row{padding:20px 0;border-bottom:1px solid var(--line)}.review-row:last-child{border:0}.review-row summary{font-size:12px;cursor:pointer;line-height:1.7}.review-row .explanation-card{border:0;padding:18px 0;box-shadow:none}.review-row .feedback-banner{margin-top:15px}.review-row .question-stem{font-size:14px}.result-hero{text-align:center;background:#eaf0e3;padding:40px 30px;border-radius:22px;border:1px solid #dfe8d5}.result-symbol{width:62px;height:62px;background:#d6e8bf;color:#4c7144;border-radius:20px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;font-size:28px}.result-hero h1{font-size:32px}.result-hero p{font-size:12px;color:#7c8b71;margin:12px auto 22px;max-width:500px}.result-metrics{display:flex;justify-content:center;gap:44px;margin:25px 0}.result-metrics b{font-size:34px;display:block;font-weight:550;letter-spacing:-1.3px}.result-metrics span{display:block;font-size:10px;color:#829176;margin-top:3px}.result-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.mock-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}.mock-hero{background:var(--nav);color:#e4eee6;padding:34px}.mock-hero h2{font-size:32px;margin:15px 0}.mock-hero p{color:#91aca3;font-size:12px;max-width:460px}.mock-stats{display:flex;gap:33px;margin:30px 0}.mock-stats b{display:block;font-size:35px;font-weight:500;color:#d3edbb}.mock-stats span{font-size:10px;color:#91aca3}.distribution-row{display:flex;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line);font-size:12px}.distribution-row b{font-weight:550;color:var(--muted)}.distribution-row:last-child{border:0}.profile-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:22px}.profile-grid h2{font-size:18px;margin-bottom:23px}.export-card{margin-top:22px}.user-row{padding:17px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px}.user-row strong{font-size:12px}.user-row p{font-size:10px;color:var(--muted)}.admin-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.admin-option{display:grid;grid-template-columns:30px 1fr;gap:12px;padding:16px;background:var(--bg);border-radius:12px}.admin-option label{margin:0 0 10px}.admin-option label:last-child{margin-bottom:0}.admin-option b{font-size:15px;padding-top:12px}.admin-section{display:none}.admin-section.active{display:block}
/* Dialog and utility */
dialog{border:1px solid var(--line);border-radius:21px;max-width:520px;width:calc(100% - 36px);padding:28px;background:var(--surface);color:var(--ink);box-shadow:0 30px 120px #0f232f33;max-height:90vh;overflow-y:auto}dialog::backdrop{background:#0e253966;backdrop-filter:blur(3px)}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}.modal-head h2{font-size:21px}.modal-intro{font-size:12px;color:var(--muted);margin-bottom:22px}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:23px}.modal-actions .btn{font-size:11px}.toast{position:fixed;right:28px;bottom:28px;background:#173d37;color:#fff;max-width:min(440px,calc(100vw - 36px));border-radius:12px;padding:14px 20px;box-shadow:0 10px 40px #19343426;font-size:12px;z-index:99;line-height:1.7}.toast.error{background:#9c4e5d}.spinner{display:inline-block;width:28px;height:28px;border:2px solid var(--line);border-top-color:#6d9965;border-radius:50%;animation:spin .7s linear infinite}.page-loading{text-align:center;padding:100px 20px;color:var(--muted)}.page-loading p{font-size:12px;margin-top:15px}@keyframes spin{to{transform:rotate(360deg)}}[hidden]{display:none!important}
/* Login and setup */
.auth-page{background:#f3f5f1;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:26px}.auth-shell{display:grid;grid-template-columns:1fr 1fr;width:1100px;min-height:760px;max-width:100%;background:#fff;border:1px solid #e6ebe5;border-radius:26px;overflow:hidden;box-shadow:0 25px 80px #1f3a2310}.auth-story{background:#102e2b;color:#eff4e8;padding:37px 43px 27px;position:relative;overflow:hidden;display:flex;flex-direction:column}.auth-story:after{content:'';position:absolute;width:600px;height:600px;border:1px solid #c8f27c07;border-radius:50%;right:-330px;top:150px;pointer-events:none}.auth-brand{font-size:22px;color:#f4f7ee}.auth-brand .brand-sub{font-size:18px}.auth-story-main{margin-top:47px}.auth-story .pill{font-size:8px;letter-spacing:1px}.auth-story h1{font-size:56px;line-height:1.12;letter-spacing:-2.9px;margin:23px 0 18px;font-weight:500}.auth-story h1 em{color:#c2e992;font-style:normal}.auth-story-main>p{font-size:12px;line-height:1.9;color:#91b2a5}.auth-story>small{font-size:7px;letter-spacing:1.7px;color:#5f8c7b;margin-top:auto;padding-top:25px}.learning-art{height:230px;position:relative;margin-top:15px}.art-orbit{width:230px;height:230px;border:1px solid #c8f27c16;border-radius:50%;position:absolute;right:4px;top:16px}.art-orbit:after{content:'';border:1px solid #c8f27c0c;border-radius:50%;position:absolute;inset:25px}.art-card{position:absolute;border-radius:14px;box-shadow:0 20px 35px #001e2020}.art-big{width:184px;height:206px;right:10px;top:17px;background:#d1e7bb;transform:rotate(9deg);padding:22px;color:#315137}.art-card>span{font-size:6px;letter-spacing:1.1px;opacity:.6}.art-big strong{display:block;font-size:28px;line-height:1.2;font-weight:550;margin-top:12px;letter-spacing:-.8px}.art-big em{font-style:normal;color:#6f9258}.art-small{left:0;top:60px;background:#f8f8ed;color:#38583b;padding:20px;width:227px;height:122px;transform:rotate(-6deg);z-index:1}.art-small b{font-size:12px;font-weight:550;display:block;margin:8px 0 13px}.art-checks{display:flex;gap:8px}.art-checks i{display:flex;align-items:center;justify-content:center;border-radius:5px;width:23px;height:23px;font-style:normal;background:#e0ebd5;font-size:10px;color:#6d895b}.art-checks i:last-child{background:#263e35;color:#c8f27c}.art-steps{display:flex;align-items:end;gap:5px;height:37px;margin-top:8px}.art-steps i{background:#86ad69;width:20px;height:10px;border-radius:3px}.art-steps i:nth-child(2){height:15px}.art-steps i:nth-child(3){height:21px}.art-steps i:nth-child(4){height:29px}.art-steps i:nth-child(5){height:37px}.art-spark{position:absolute;left:56px;top:6px;font-size:30px;color:#c8f27c}.auth-metrics{display:flex;gap:36px;margin-top:24px}.auth-metrics b{font-size:23px;font-weight:450;display:block;line-height:1.2;color:#e0edce}.auth-metrics span{font-size:8px;color:#84a18d;margin-top:5px;display:block}.auth-form-side{padding:36px 44px 27px;display:flex;flex-direction:column}.secure-label{display:flex;justify-content:flex-end;align-items:center;gap:6px;color:#98a496;font-size:8px}.secure-label>span{font-size:13px;color:#85987b}.login-form-wrap{width:100%;max-width:345px;margin:98px auto 50px}.login-form-wrap .eyebrow{font-size:8px;letter-spacing:1.7px;color:#8c9b7b;margin-bottom:17px}.login-form-wrap h2{font-size:32px;line-height:1.23;font-weight:600;letter-spacing:-1.2px;color:#1a3731}.login-form-wrap>.muted{font-size:11px;margin:15px 0 30px;color:#94a097}.login-form-wrap label{font-size:10px;color:#5e7065;gap:9px}.login-form-wrap input{padding:13px 14px;font-size:11px;border-color:#e2e8df;background:#fbfcfa}.password-wrap{position:relative;display:flex}.password-wrap input{padding-right:63px}.password-toggle{position:absolute;right:8px;top:7px;border:0;background:transparent;font-size:9px;color:#9aa793;padding:8px}.login-submit{width:100%;min-height:46px;margin-top:8px;background:#153b31!important;font-size:11px;justify-content:space-between;padding:12px 17px}.login-submit span{font-size:18px;color:#c8f27c}.login-help{display:flex;align-items:center;gap:10px;background:#f5f7f1;border:1px solid #edf0e9;padding:12px;border-radius:8px;margin-top:20px;color:#9aa58e}.login-help>span{font-size:16px}.login-help p{font-size:9px;color:#99a490;line-height:1.7}.login-bottom{display:flex;align-items:center;gap:9px;margin-top:30px;justify-content:center}.mini-mark{background:#eff5e7;border-radius:6px;color:#92aa7b;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:10px}.login-bottom p{font-size:8px;color:#a4af9d}.auth-form-side footer{display:flex;justify-content:space-between;gap:12px;color:#a4af9d;font-size:8px;margin-top:auto}.setup-card{max-width:600px;width:100%;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:38px;margin:auto}.setup-card .brand{margin-bottom:33px}.setup-card>.eyebrow{margin-top:5px}.setup-card h1{font-size:30px;margin-bottom:17px}.setup-card>p{color:var(--muted);font-size:12px;margin:15px 0 24px}.setup-card .alert{margin:18px 0}.setup-card .stack{margin-top:24px}.guide{max-width:900px;margin:40px auto;padding:35px;background:var(--surface);border-radius:20px}.guide h1{margin:20px 0}.guide h2{font-size:19px;margin:30px 0 12px}.guide p,.guide li{font-size:13px;line-height:1.9;color:var(--muted)}.guide code{background:var(--bg);border:1px solid var(--line);padding:2px 5px;border-radius:4px;color:var(--ink)}.guide pre{background:var(--nav);color:#d2e5db;padding:20px;border-radius:12px;overflow:auto;font-size:12px;line-height:1.8}
/* Dark preference */
body.dark{--bg:#122025;--surface:#1b2c31;--ink:#e0ebe9;--muted:#92a8a9;--line:#2c4045;--accent:#b3d395;--accent-bg:#2a3d30;--nav:#10292c;--red-bg:#402b31;--shadow:none;color-scheme:dark}body.dark .hero,body.dark .topic-hero,body.dark .result-hero{background:#293e31;border-color:#374b39}body.dark .hero h2,body.dark .topic-hero h1,body.dark .result-hero h1{color:#d6e9c7}body.dark .hero p,body.dark .topic-hero p,body.dark .result-hero p{color:#a3b29c}body.dark .hero-art{opacity:.8}body.dark .subject-icon{background:#314149}body.dark .option.correct{background:#263f32;border-color:#527c5c}body.dark .option.wrong{background:#452f37;border-color:#815d67}body.dark .option.selected{background:#2b3b48;border-color:#54728a}body.dark .feedback-banner{background:#2c4131;color:#b5d3a3;border-color:#496246}body.dark .feedback-banner.incorrect{background:#422c34;color:#e2aab4;border-color:#64424f}body.dark .feedback-banner.neutral{background:#3d3929;color:#d5c18b;border-color:#63583c}body.dark .quiz-tip{background:#29392f;border-color:#3a4a3b}body.dark .avatar{background:#3c4537;color:#d4ddc1}body.dark input,body.dark select,body.dark textarea{border-color:var(--line)}body.dark .lesson-card p{color:var(--muted)}
/* Responsive */
@media(min-width:1650px){.auth-shell{min-height:805px}.auth-story-main{margin-top:58px}.learning-art{height:248px}.login-form-wrap{margin-top:120px}}
@media(max-width:1250px){.sidebar{width:220px;padding:30px 18px 20px}.workspace{width:calc(100% - 220px);margin-left:220px}.topbar{padding:0 26px}#main{padding:28px 26px}.dashboard-grid{grid-template-columns:minmax(0,1fr) 250px;gap:17px}.subject-card{padding:18px}.hero h2{font-size:29px}.hero-copy{padding:27px}.floating-tag.tag1{right:5px}.floating-tag.tag2{left:-10px}.stats-grid{gap:10px}.stat{padding:17px 15px;gap:10px}.stat-icon{width:30px;height:30px}.stat strong{font-size:22px}.quiz-layout{grid-template-columns:minmax(0,1fr) 200px;gap:16px}.question-card{padding:25px}.topics-list{gap:10px}.topic-row{padding:16px;gap:11px}.topic-row h3{font-size:12px}}
@media(max-width:1080px){.dashboard-grid{grid-template-columns:1fr}.dashboard-aside{display:grid;grid-template-columns:1.2fr 1fr;gap:17px}.goal-card{grid-row:span 2}.goal-ring{width:95px;height:95px;margin:0 0 12px auto;position:absolute;right:22px;top:30px}.goal-card p{max-width:155px}.goal-card .btn{margin-top:10px}.goal-card progress{margin-top:37px}.mini-card{margin:0}.dashboard-aside .mini-card:last-child{margin-top:0}.hero-art{min-width:230px}.stats-grid{grid-template-columns:repeat(4,1fr)}.stat{display:block}.stat-icon{margin-bottom:10px}.quiz-layout{grid-template-columns:1fr}.quiz-aside{display:grid;grid-template-columns:1fr 1fr;gap:15px}.quiz-aside .quiz-tip{margin-top:0}.question-map{grid-template-columns:repeat(10,1fr)}.quiz-aside .card{padding:18px}.topics-list{grid-template-columns:1fr}.topic-row{grid-template-columns:38px 1fr auto}.topic-row h3{font-size:14px}.profile-grid{grid-template-columns:1fr}.mock-grid{grid-template-columns:1fr 1fr}.topbar-caption{display:none}.topbar-divider{display:none}.saved-indicator{display:none}.auth-story{padding:32px}.auth-form-side{padding:32px}.auth-story h1{font-size:50px}.auth-shell{min-height:740px}.art-small{width:200px}.art-big{right:-5px;width:170px}.auth-metrics{gap:25px}}
@media(max-width:800px){.sidebar{transform:translateX(-100%);transition:transform .22s;width:248px;padding:27px 23px 20px}.sidebar.open{transform:translateX(0)}.sidebar-tip{margin-top:30px}.workspace{margin-left:0;width:100%}.topbar{height:68px;padding:0 22px}.topbar-left{gap:12px}.menu-toggle{display:flex}.topbar-title{font-size:11px}.topbar-actions{gap:10px}.avatar{width:32px;height:32px}.topbar .icon-btn{width:31px;height:31px}#main{padding:25px 22px 30px}.app-footer{padding:0 22px 90px;font-size:8px}.mobile-nav{display:flex;justify-content:space-around;position:fixed;bottom:0;left:0;right:0;padding:11px 7px calc(10px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line);z-index:30}.mobile-nav a{display:flex;align-items:center;flex-direction:column;gap:5px;font-size:8px;min-width:60px;color:var(--muted)}.mobile-nav a.active{color:var(--accent)}.mobile-nav svg{width:19px;height:19px}.toast{bottom:85px;right:18px}.hero{grid-template-columns:1.3fr 1fr}.hero h2{font-size:31px}.greeting h1{font-size:28px}.stat{display:flex}.stat-icon{margin-bottom:0}.date-tag{font-size:9px}.topics-list{grid-template-columns:1fr 1fr}.topic-row{grid-template-columns:30px 1fr auto;gap:10px}.topic-row h3{font-size:12px}.topic-symbol{width:30px;height:30px}.page-head h1{font-size:29px}.lesson-card{padding:22px}.auth-page{padding:15px}.auth-shell{grid-template-columns:1fr;max-width:510px;min-height:auto}.auth-story{display:none}.auth-form-side{padding:32px;min-height:660px}.login-form-wrap{margin:60px auto 50px}.secure-label{justify-content:center}.auth-form-side:before{content:'memur oluyorum.';font-size:25px;font-weight:700;color:#204638;letter-spacing:-1px;text-align:center;margin:10px 0 20px}.auth-form-side footer{margin-top:10px}}
@media(max-width:600px){h1{font-size:27px}.greeting{align-items:flex-start;gap:10px}.greeting h1{font-size:25px}.greeting p{font-size:10px}.date-tag{font-size:0;padding:7px 9px;max-width:80px}.date-tag svg{font-size:12px}.hero{grid-template-columns:1fr;min-height:auto}.hero-copy{padding:25px}.hero h2{font-size:29px;max-width:300px}.hero p{max-width:260px;font-size:11px}.hero-art{position:absolute;right:-75px;bottom:-40px;width:220px;height:220px;opacity:.4;mask-image:linear-gradient(90deg,transparent,#000 80%);pointer-events:none}.hero-orbit{width:190px;height:190px}.hero-number{width:100px;height:120px}.hero-number strong{font-size:50px}.floating-tag{display:none}.hero-copy .btn{z-index:4;position:relative}.stats-grid{grid-template-columns:1fr 1fr;gap:11px;margin-top:15px}.stat{padding:17px;gap:12px}.stat strong{font-size:23px}.stat span{font-size:8px}.stat-icon{width:32px;height:32px}.stat-icon svg{width:15px}.dashboard-grid{margin-top:22px}.subject-grid{gap:12px}.subject-card{padding:17px;min-height:205px;border-radius:16px}.subject-top{margin-bottom:15px}.subject-icon{width:36px;height:36px;border-radius:11px}.subject-icon svg{width:20px}.subject-card h3{font-size:15px}.subject-card p{font-size:9px;min-height:43px}.subject-card .subject-progress{margin-top:15px}.subject-meta,.subject-bottom{font-size:8px}.subject-top .badge{font-size:7px;padding:3px 5px}.dashboard-aside{grid-template-columns:1fr 1fr;gap:12px}.goal-card{grid-column:span 2;grid-row:auto}.goal-card h3{font-size:21px}.goal-card p{max-width:190px;font-size:11px;margin-bottom:15px}.goal-ring{right:30px;top:28px;width:95px;height:95px}.goal-card progress{margin-top:30px}.goal-card .btn{min-height:36px}.goal-card .goal-count{max-width:calc(100% - 140px)}.mini-card{padding:17px}.mini-card h3{font-size:12px}.mini-card p{font-size:9px}.mini-card .text-link{font-size:9px}.card{border-radius:16px}.activity-card,.recent-card{padding:21px}.card-head h2{font-size:17px}.card-head{margin-bottom:17px}.activity-chart{gap:14px}.section-title{margin-top:24px}.section-title h2{font-size:18px}.section-title .text-link{font-size:10px}.section-title p{font-size:10px}.page-head{flex-direction:column;margin-bottom:21px;gap:15px}.page-head h1{font-size:28px}.page-head p{font-size:11px}.page-head .btn{font-size:11px}.topic-toolbar{flex-direction:column;align-items:stretch}.filters{gap:6px}.filter{font-size:10px;padding:8px 10px;min-height:34px}.search{width:100%}.topics-list{grid-template-columns:1fr}.topic-row{padding:18px;grid-template-columns:34px 1fr auto;gap:12px}.topic-row h3{font-size:13px}.topic-row p{font-size:9px}.topic-hero{padding:24px}.topic-hero h1{font-size:26px}.topic-hero p{font-size:12px}.lesson-grid{grid-template-columns:1fr}.lesson-card p{font-size:12px}.source-grid{grid-template-columns:1fr}.collection-row{grid-template-columns:1fr}.collection-row .btn{justify-self:start}.quiz-top{align-items:flex-start;margin-bottom:18px}.quiz-top h1{font-size:19px}.quiz-top p{font-size:10px;max-width:220px}.timer{font-size:10px;padding:8px 9px}.quiz-progress-meta{font-size:9px}.question-card{padding:21px 18px}.question-meta{gap:8px;margin-bottom:18px}.question-meta .badge{font-size:8px}.question-meta .icon-btn{width:31px;height:31px}.question-stem{font-size:16px;line-height:1.8;margin-bottom:24px}.option{font-size:12px;padding:13px 12px;gap:11px;border-radius:10px}.option-letter{width:27px;height:27px;min-width:27px;font-size:10px}.question-actions{gap:7px;flex-wrap:wrap}.question-actions .btn{padding:10px 12px;font-size:10px;min-height:38px}.quiz-aside{grid-template-columns:1fr}.quiz-tip{display:none}.question-map{grid-template-columns:repeat(8,1fr)}.feedback-banner{padding:17px}.feedback-banner h2{font-size:15px}.feedback-banner p{font-size:10px}.explanation-card{padding:22px 18px}.explanation-card>p{font-size:12px}.explanation-option p{font-size:11px}.result-hero{padding:30px 21px}.result-hero h1{font-size:26px}.result-metrics{gap:23px}.result-metrics b{font-size:28px}.result-metrics span{font-size:9px}.mock-grid{grid-template-columns:1fr}.mock-hero{padding:28px}.mock-hero h2{font-size:30px}.mock-stats{gap:32px}.profile-grid{gap:17px}.profile-grid .card{padding:23px}.form-grid{grid-template-columns:1fr}.span2{grid-column:auto}.user-row{align-items:flex-start;flex-wrap:wrap}.user-row .flex{flex-wrap:wrap}.admin-toolbar{flex-wrap:wrap}.admin-toolbar .btn{font-size:10px}.auth-page{padding:0;background:#fff}.auth-shell{border:0;border-radius:0;min-height:100dvh;box-shadow:none}.auth-form-side{padding:25px 28px;min-height:100dvh}.login-form-wrap{margin:49px auto 35px;max-width:350px}.login-form-wrap h2{font-size:32px}.login-form-wrap>.muted{font-size:11px;margin:17px 0 30px}.auth-form-side footer{font-size:7px}.setup-card{padding:26px;border-radius:0;border:0;min-height:100vh}.setup-card h1{font-size:28px}.guide{margin:0;border-radius:0;padding:25px}.guide h1{font-size:28px}dialog{padding:23px}.modal-head h2{font-size:19px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
/* Koyu zeminde vurgu metni okunurluğu. */
body.dark .hero h2 em{color:#b3d395}.badge.green{color:#2c6848}.badge.red{color:#984650}