@charset "UTF-8";
:root{--ink:#202641;--night:#17234c;--night2:#293a74;--paper:#f6f8fd;--white:#ffffff;--muted:#5e6980;--line:#dce2ef;--gold:#85ead6;--orange:#b54769;--green:#087c70;--primary:#4455d5;--surface-soft:#edf1fc;--body-text:#46536b;--radius:20px;--serif:'Segoe UI Variable','Segoe UI',system-ui,sans-serif;--sans:'Segoe UI Variable','Segoe UI',system-ui,sans-serif;--shadow:0 12px 32px #283c7610}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.65 var(--sans);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--primary);outline-offset:4px}button{color:inherit}svg{vertical-align:middle}.icon{width:20px;height:20px;flex-shrink:0;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;fill:none}.skip{position:fixed;top:-60px;left:20px;padding:12px;background:white;z-index:100}.skip:focus{top:10px}.container{width:min(1220px,calc(100% - 96px));margin:auto}.narrow{max-width:900px}.eyebrow{text-transform:uppercase;letter-spacing:2.2px;font-size:10px;font-weight:700;line-height:1.5}.muted{color:var(--muted)}.serif{font-family:var(--serif);font-weight:400}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.15}h1{font:400 clamp(40px,4.7vw,68px)/1.09 var(--serif);letter-spacing:-2px;margin-bottom:22px}h2{font:400 clamp(29px,3vw,40px)/1.18 var(--serif);letter-spacing:-.8px}h3{font:400 25px/1.25 var(--serif);letter-spacing:-.3px}p{margin-bottom:18px}small{font-size:12px}.section{padding:65px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}.section-head h2{margin:8px 0 0}.text-link{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;border-bottom:1px solid var(--line);padding-bottom:4px}.text-link .icon{width:16px}.pill{display:inline-flex;align-items:center;gap:7px;font-size:11px;border:1px solid var(--line);padding:5px 11px;border-radius:50px;line-height:1.5}.tag{background:var(--surface-soft);border-radius:5px;padding:3px 8px;font-size:10px;text-transform:uppercase;letter-spacing:.5px}.btn{display:inline-flex;gap:10px;align-items:center;justify-content:center;min-height:45px;padding:11px 20px;border:1px solid var(--night);border-radius:7px;background:var(--night);color:var(--white);font-size:13px;font-weight:600;line-height:1.5;transition:background .2s,transform .2s}.btn:hover{background:#2f5058;transform:translateY(-1px)}.btn.gold{background:var(--gold);border-color:var(--gold);color:var(--night)}.btn.gold:hover{background:#f0ce9c}.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}.btn.ghost:hover{background:var(--surface-soft)}.btn.light{background:#fffefa0b;border-color:#ffffff35;color:#f8f5ec}.btn.light:hover{background:#ffffff15}.btn.small{padding:7px 12px;min-height:35px;font-size:12px}.btn .icon{width:17px;height:17px}.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.icon-btn{border:1px solid var(--line);background:transparent;border-radius:50%;width:38px;height:38px;display:inline-grid;place-items:center;flex-shrink:0}.icon-btn:hover{background:#e7ebe2}.icon-btn.saved{color:var(--orange);background:#f1e3d6}.rule{height:1px;background:var(--line);margin:25px 0}.empty{padding:45px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted)}.empty h3{color:var(--ink);margin-top:12px}.progress-line{height:4px;border-radius:9px;background:#e5e9e0;overflow:hidden}.progress-line span{display:block;height:100%;background:var(--green);transition:width .4s}.label{display:block;font-size:12px;font-weight:600;margin-bottom:7px}
/* Global navigation */
#header{position:sticky;top:0;z-index:30;background:var(--paper);border-bottom:1px solid var(--line)}.topbar{height:82px;display:flex;align-items:center;gap:35px}.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}.brandmark{height:38px;width:38px;color:var(--ink);display:grid;place-items:center}.brandmark svg{width:36px;height:36px}.brand-name{font:400 26px/1 var(--serif);letter-spacing:-.8px}.brand-sub{font-size:8px;letter-spacing:2.1px;margin-top:5px;text-transform:uppercase}.main-nav{display:flex;align-items:center;gap:25px;margin-left:auto}.main-nav a{font-size:12px;position:relative;padding:28px 0}.main-nav a.active{font-weight:700}.main-nav a.active:after{content:'';position:absolute;bottom:19px;height:2px;left:0;right:0;background:var(--orange)}.nav-tools{display:flex;gap:9px;align-items:center}.search-trigger{display:flex;gap:9px;align-items:center;border:1px solid var(--line);background:transparent;padding:9px 12px;border-radius:7px;font-size:11px;color:var(--muted)}kbd{font:10px var(--sans);border:1px solid var(--line);border-radius:3px;padding:1px 4px}.menu-toggle{display:none}.search-trigger .icon{width:15px;height:15px}.top-progress{font-size:11px;display:flex;gap:7px;align-items:center}.progress-dot{display:block;width:7px;height:7px;border-radius:50%;background:var(--green)}
/* The home page */
.hero{background:var(--night);color:#f7f3e9;overflow:hidden;position:relative}.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;min-height:525px;gap:20px;position:relative}.hero-copy{position:relative;z-index:2;padding:64px 0 70px}.hero .eyebrow{color:var(--gold);font-size:9px;margin-bottom:27px;display:flex;align-items:center;gap:12px}.hero .eyebrow:before{content:'';width:27px;height:1px;background:var(--gold)}.hero h1{font-size:clamp(43px,4.6vw,67px);margin-bottom:25px}.hero h1 em{font-weight:400;color:var(--gold)}.hero-copy>p{max-width:410px;color:#bdccca;font-size:14px;line-height:1.85;margin-bottom:28px}.hero-foot{display:flex;gap:15px;align-items:center;margin-top:28px;font-size:10px;letter-spacing:.5px;color:#b5c5c3}.hero-foot span+span:before{content:'·';margin-right:15px;color:var(--gold)}.moon-scene{height:440px;position:relative;isolation:isolate;display:grid;place-items:center}.orbital-lines{position:absolute;width:560px;height:480px;max-width:120%;color:#e5bd85;opacity:.35;transform:rotate(-20deg)}.moon{width:252px;height:252px;border-radius:50%;position:relative;background:radial-gradient(circle at 28% 25%,#f2d9ad 0%,#d1b98d 23%,#839385 51%,#38545a 68%,#193039 83%);box-shadow:inset -25px -20px 40px #0c222c,0 0 100px #d6b87c17;transform:rotate(-15deg)}.moon:before{content:'';position:absolute;inset:0;border-radius:50%;opacity:.45;background:radial-gradient(ellipse at 32% 38%,#8c8d7140 0 9%,transparent 10%),radial-gradient(circle at 43% 63%,#ded5ae55 0 5%,#aaa38540 6%,transparent 9%),radial-gradient(ellipse at 59% 31%,#d7c89e80 0 6%,transparent 10%),radial-gradient(circle at 25% 69%,#7d846d40 0 12%,transparent 17%),radial-gradient(ellipse at 66% 72%,#85938380 0 7%,transparent 10%);filter:contrast(1.4)}.moon:after{content:'';position:absolute;inset:0;border-radius:50%;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 300 300' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.54' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' opacity='.26' filter='url(%23n)'/%3E%3C/svg%3E");mix-blend-mode:soft-light}.star{position:absolute;color:var(--gold);font-size:18px;opacity:.75}.star.s1{top:61px;left:22%}.star.s2{right:10%;top:130px;font-size:10px}.star.s3{left:8%;bottom:100px;font-size:9px}.orbit-label{position:absolute;font-size:8px;letter-spacing:2px;color:#a8bfbd;display:flex;align-items:center;gap:8px}.orbit-label:before{content:'';width:5px;height:5px;background:var(--gold);border-radius:50%}.orbit-label.l1{top:54px;right:25%}.orbit-label.l2{right:0;bottom:125px}.orbit-label.l3{left:0;top:172px}.orbit-caption{position:absolute;bottom:25px;right:15px;font-size:8px;letter-spacing:2px;color:#97afae;writing-mode:vertical-rl}.moon-rule{position:absolute;bottom:28px;left:19%;font-size:9px;letter-spacing:2.5px;color:#c3cebf}.hero-stats{background:#10272d;border-top:1px solid #ffffff0c}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:22px 0}.stat-item{display:flex;align-items:center;justify-content:center;gap:15px;border-right:1px solid #ffffff18}.stat-item:first-child{justify-content:start}.stat-item:last-child{border:0}.stat-number{font:400 29px var(--serif);color:var(--gold)}.stat-label{font-size:10px;color:#b9c9c6;line-height:1.5}.welcome-row{display:grid;grid-template-columns:1fr 340px;gap:24px;margin-top:36px}.continue-card{display:flex;align-items:center;gap:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);padding:26px 30px}.continue-icon{width:58px;height:58px;background:var(--surface-soft);display:grid;place-items:center;border-radius:15px;flex-shrink:0;color:var(--green)}.continue-icon .icon{width:26px;height:26px}.continue-body{flex:1;min-width:0}.continue-body h3{font-size:22px;margin:5px 0 8px}.continue-body .progress-line{max-width:310px}.micro{font-size:10px;color:var(--muted)}.daily-card{background:var(--surface-soft);border-radius:var(--radius);padding:24px 26px;display:flex;align-items:center;justify-content:space-between;gap:12px}.daily-card .big{font:400 37px/1 var(--serif);margin:7px 0}.daily-card .icon-btn{background:var(--night);color:white;border:0}.theme-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.theme-card{display:flex;flex-direction:column;position:relative;padding:25px 23px;border:1px solid var(--line);background:var(--white);border-radius:13px;min-height:207px;transition:transform .2s,box-shadow .2s,border-color .2s}.theme-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#a3b5ac}.theme-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:29px}.theme-icon{color:var(--theme);width:39px;height:39px;border-radius:50%;background:color-mix(in srgb,var(--theme) 12%,transparent);display:grid;place-items:center}.theme-number{font-size:10px;letter-spacing:1px;color:var(--muted)}.theme-card h3{font-size:21px;margin-bottom:8px}.theme-card p{font-size:11px;color:var(--muted);margin-bottom:20px;line-height:1.6}.theme-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:10px;font-weight:600}.theme-bottom .icon{width:17px}.home-lab{background:var(--surface-soft);padding:58px 0}.lab-grid{display:grid;grid-template-columns:330px 1fr;gap:70px;align-items:center}.lab-grid p{font-size:13px;color:var(--muted)}.lab-grid h2{font-size:37px;margin:12px 0 20px}.hypno-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:23px;overflow:hidden}.chart-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px;font-size:11px}.chart-svg{display:block;width:100%;height:auto}.chart-note{font-size:10px;color:var(--muted);margin:12px 0}.stage-buttons{display:flex;gap:6px;flex-wrap:wrap}.stage-buttons button{background:transparent;border:1px solid var(--line);border-radius:20px;font-size:10px;padding:5px 11px}.stage-buttons button.active{background:var(--night);color:white;border-color:var(--night)}.stage-desc{min-height:48px;margin-top:13px;font-size:12px;line-height:1.6;color:var(--body-text)}.revision-banner{background:var(--night);color:var(--white);border-radius:var(--radius);padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.revision-banner h2{font-size:34px;margin:10px 0 14px}.revision-banner p{font-size:13px;color:#b7c7c5;max-width:410px}.revision-steps{display:grid;gap:20px}.revision-step{display:flex;align-items:center;gap:17px;font-size:12px}.revision-step>span{width:33px;height:33px;border:1px solid #ffffff25;border-radius:50%;display:grid;place-items:center;color:var(--gold);font:15px var(--serif)}.revision-step small{display:block;color:#9cb3b0;font-size:10px;margin-top:3px}
/* Library and inner pages */
.page-top{padding:50px 0 30px}.breadcrumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:11px;margin-bottom:30px}.breadcrumb .icon{width:12px;height:12px}.page-top h1{font-size:50px;max-width:900px;margin:12px 0 18px}.lead{font-size:15px;max-width:690px;color:var(--muted);line-height:1.8}.toolbar{display:flex;gap:15px;align-items:center;justify-content:space-between;margin:20px 0 22px}.input-wrap{position:relative;max-width:440px;flex:1}.input-wrap .icon{position:absolute;top:13px;left:14px;color:var(--muted);width:17px;height:17px}.input-wrap input{width:100%;padding:11px 14px 11px 42px}.field,input[type=search],select,textarea,input[type=number],input[type=date]{border:1px solid var(--line);background:var(--white);border-radius:7px;padding:10px 12px;color:var(--ink);max-width:100%}input[type=search]::-webkit-search-cancel-button{cursor:pointer}.filter-list{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}.filter-btn{background:transparent;border:1px solid var(--line);border-radius:50px;padding:7px 13px;font-size:11px}.filter-btn:hover{border-color:#8fa39a}.filter-btn.active{background:var(--night);border-color:var(--night);color:white}.library-layout{padding-bottom:65px}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.lesson-card{border:1px solid var(--line);border-radius:14px;background:var(--white);display:flex;flex-direction:column;position:relative;overflow:hidden;transition:box-shadow .2s,transform .2s}.lesson-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.lesson-card-top{padding:20px 23px 0;display:flex;justify-content:space-between;align-items:center}.lesson-card-main{padding:17px 23px 21px;flex:1;display:flex;flex-direction:column}.lesson-card h3{font-size:23px;margin:0 0 12px}.lesson-card p{font-size:12px;color:var(--muted);margin-bottom:20px}.lesson-meta{display:flex;align-items:center;gap:13px;font-size:10px;color:var(--muted);margin-top:auto}.lesson-meta .icon{width:13px;height:13px}.lesson-footer{border-top:1px solid var(--line);padding:11px 23px;display:flex;justify-content:space-between;align-items:center;font-size:11px}.lesson-footer .icon{width:16px;height:16px}.course-number{font:14px var(--serif);color:var(--theme)}.course-status{font-size:10px;color:var(--green);display:flex;align-items:center;gap:4px}.theme-name{font-size:9px;letter-spacing:.7px;text-transform:uppercase;color:var(--theme)}.lesson-card .icon-btn{width:29px;height:29px;border:0}.lesson-card .icon-btn .icon{width:16px;height:16px}
/* Reader */
.reader-top{padding-bottom:32px;border-bottom:1px solid var(--line)}.reader-top h1{max-width:870px;font-size:54px}.reader-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:25px;font-size:11px;color:var(--muted)}.reader-meta>span{display:flex;align-items:center;gap:7px}.reader-meta .icon{width:15px;height:15px}.reader-layout{display:grid;grid-template-columns:205px minmax(0,750px);gap:65px;padding:42px 0 70px;justify-content:start}.toc{position:sticky;top:115px;align-self:start;font-size:11px}.toc .eyebrow{font-size:9px;color:var(--muted);margin-bottom:17px}.toc a{display:block;padding:7px 12px;border-left:1px solid var(--line);color:var(--muted);line-height:1.5}.toc a:hover{color:var(--ink);border-color:var(--green);background:var(--surface-soft)}.toc .toc-tools{margin-top:25px}.toc .btn{width:100%;font-size:11px;margin-bottom:8px}.reader-content{min-width:0;font-size:15px;line-height:1.9}.objectives{padding:25px 28px;background:var(--surface-soft);border-radius:13px;margin-bottom:28px}.objectives .eyebrow{font-size:9px;color:var(--green)}.objectives ul{padding-left:18px;margin:12px 0 0;font-size:13px;line-height:1.9}.essential{font:400 23px/1.55 var(--serif);border-left:3px solid var(--primary);padding:3px 0 3px 25px;margin:30px 0 35px;color:var(--ink)}.reader-section{margin-bottom:37px}.reader-section h2{font:400 30px/1.2 var(--serif);margin-bottom:20px}.reader-content p{color:var(--body-text)}.reader-content strong{color:var(--ink);font-weight:600}.reader-content ol,.reader-content ul{padding-left:22px;color:var(--body-text)}.reader-content li{padding-left:4px;margin-bottom:7px}table{border-collapse:collapse;font-size:12px;line-height:1.7;width:100%;margin:23px 0;display:block;overflow-x:auto}th{text-align:left;font-size:10px;letter-spacing:.5px;text-transform:uppercase;background:var(--surface-soft);color:var(--ink)}th,td{padding:13px 16px;border-bottom:1px solid var(--line);min-width:130px}td:first-child{font-weight:600;color:var(--ink)}.trap-box{background:#f2e9df;border:1px solid #ead7c4;border-radius:13px;padding:23px 26px;margin:33px 0}.trap-box h3{font:600 13px var(--sans);display:flex;align-items:center;gap:9px;color:#8e5b37;margin-bottom:12px}.trap-box ul{font-size:13px;line-height:1.8;margin:0}.source-box{font-size:11px;color:var(--muted);padding:23px;border:1px solid var(--line);border-radius:12px;margin:30px 0;line-height:1.8}.source-box .eyebrow{font-size:9px}.source-box p{font-size:11px;color:var(--muted);margin:9px 0}.source-box a{text-decoration:underline;text-underline-offset:3px;color:var(--green)}.ref-list{display:grid;gap:7px;margin-top:13px}.reader-end{border-top:1px solid var(--line);padding-top:30px;margin-top:35px}.end-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:24px}.revision-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:38px 0}.revision-panel h2{margin:9px 0 8px}.tabs{display:flex;gap:5px;border-bottom:1px solid var(--line);margin:23px 0}.tab{border:0;background:transparent;font-size:11px;padding:11px 15px;border-bottom:2px solid transparent;margin-bottom:-1px}.tab.active{border-bottom-color:var(--green);color:var(--green);font-weight:700}.note-field{width:100%;resize:vertical;min-height:120px;font-size:13px;line-height:1.8}.autosave{font-size:10px;color:var(--muted);margin-top:8px}.lesson-next{display:flex;justify-content:space-between;align-items:center;background:var(--surface-soft);border-radius:13px;padding:22px 25px;gap:20px}.lesson-next h3{font-size:22px;margin:6px 0 0}
/* Practice and cards */
.practice-wrap{max-width:800px;margin:auto}.practice-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;font-size:11px;color:var(--muted)}.q-type{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--orange)}.question{font:400 26px/1.4 var(--serif);margin:13px 0 22px}.options{display:grid;gap:9px}.option{display:flex;align-items:start;gap:12px;width:100%;text-align:left;border:1px solid var(--line);background:var(--white);padding:13px 16px;border-radius:8px;font-size:13px;line-height:1.6}.option:hover{background:var(--surface-soft);border-color:#a4b5a9}.option.selected{background:var(--surface-soft);border-color:#72947f}.option.correct{background:#e7f0e7;border-color:#7f9e80}.option.wrong{background:#f7e8df;border-color:#bc8b73}.option-letter{width:23px;height:23px;border:1px solid var(--line);display:grid;place-items:center;border-radius:5px;font-size:10px;flex-shrink:0;margin-top:0}.selected .option-letter{background:var(--night);color:white;border-color:var(--night)}.correct .option-letter{background:var(--green);color:white;border-color:var(--green)}.wrong .option-letter{background:#ab644c;color:white;border-color:#ab644c}.feedback{margin:20px 0;padding:19px 22px;background:#e8efe5;border-radius:10px;font-size:13px;line-height:1.8}.feedback.bad{background:#f3e7dc}.feedback strong{display:block;margin-bottom:6px}.question-actions{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:23px}.question-ref{font-size:10px;color:var(--muted);margin-top:13px}.question-ref a{text-decoration:underline}.answer-summary{padding:28px 0;text-align:center}.score-ring{width:115px;height:115px;border:5px solid #c7d8c4;border-radius:50%;margin:0 auto 22px;display:flex;flex-direction:column;align-items:center;justify-content:center}.score-ring strong{font:36px var(--serif)}.score-ring span{font-size:10px;color:var(--muted)}.answer-summary h3{font-size:27px}.answer-summary p{font-size:13px;color:var(--muted)}.flashcard{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);min-height:280px;padding:35px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;box-shadow:var(--shadow)}.flashcard .eyebrow{font-size:9px;color:var(--muted)}.flash-question{font:400 28px/1.4 var(--serif);max-width:570px;margin:25px 0}.flash-answer{font-size:15px;line-height:1.8;border-top:1px solid var(--line);padding-top:23px;max-width:590px}.rating-row{display:flex;justify-content:center;gap:10px;margin-top:22px;flex-wrap:wrap}.rating-row button{min-width:115px}.rating-row small{display:block;font-size:10px;opacity:.7}.revision-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.mode-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column}.mode-card h3{margin:20px 0 12px;font-size:25px}.mode-card p{font-size:12px;color:var(--muted);flex:1}.mode-card .icon{width:25px;height:25px;color:var(--green)}.mode-card .btn{margin-top:12px}.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.case-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}.case-card h3{font-size:25px;margin:12px 0}.case-card p{font-size:13px;color:#586d66}.case-card details{border-top:1px solid var(--line);padding:12px 0;font-size:13px}.case-card summary{cursor:pointer;font-weight:600;font-size:12px}.case-card details p{margin:12px 0 0}.practice-header{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:20px}.practice-header h2{margin:0;font-size:30px}.exam-layout{display:grid;grid-template-columns:1fr 310px;gap:38px;align-items:start}.exam-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:36px}.exam-card h2{font-size:29px}.exam-settings{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:25px 0}.exam-rules{background:var(--surface-soft);padding:26px;border-radius:13px;font-size:12px;color:#4d645b}.exam-rules h3{font-size:23px;margin-bottom:18px}.exam-rules li{margin-bottom:10px}.timer{font:500 17px var(--sans);font-variant-numeric:tabular-nums;color:var(--green);background:var(--surface-soft);border-radius:30px;padding:5px 12px}.timer.warning{color:#a25339;background:#f5e4d7}.question-dots{display:flex;gap:7px;flex-wrap:wrap;margin-top:23px}.question-dots button{width:31px;height:31px;font-size:10px;border:1px solid var(--line);background:transparent;border-radius:5px}.question-dots button.answered{background:#dce6d7}.question-dots button.current{border:2px solid var(--green)}.exam-review details{padding:15px 0;border-top:1px solid var(--line)}.exam-review summary{font-size:12px;cursor:pointer}.exam-review p{font-size:12px;margin:10px 0}.check{color:var(--green)}.cross{color:#aa5f47}
/* Notes, tools, sources */
.dashboard-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:17px;margin:25px 0 35px}.metric{border:1px solid var(--line);border-radius:12px;padding:23px;background:var(--white)}.metric strong{font:35px var(--serif);display:block;margin:10px 0 3px}.metric span{font-size:11px;color:var(--muted)}.notebook-row{display:grid;grid-template-columns:1fr 1fr;gap:30px}.list-panel{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:var(--white)}.list-panel h2{font-size:28px;margin-bottom:22px}.list-item{display:flex;justify-content:space-between;gap:20px;align-items:center;border-top:1px solid var(--line);padding:14px 0;font-size:12px}.list-item small{font-size:10px;color:var(--muted);display:block}.list-item>.icon{width:16px}.note-preview{border-top:1px solid var(--line);padding:17px 0}.note-preview h3{font:600 12px var(--sans);margin-bottom:7px}.note-preview p{font-size:12px;white-space:pre-wrap;color:var(--muted);margin-bottom:7px;overflow-wrap:anywhere}.note-actions{display:flex;gap:10px;flex-wrap:wrap;margin:25px 0}.file-input{display:none}.privacy-note{font-size:11px;line-height:1.8;color:var(--muted);max-width:750px}.tool-card{border:1px solid var(--line);border-radius:var(--radius);padding:32px;background:var(--white);margin:28px 0}.tool-card h2{font-size:29px;margin-bottom:15px}.tool-description{font-size:13px;color:var(--muted)}.calc-inputs{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px;margin:23px 0}.calc-inputs input{width:100%}.calc-result{background:var(--surface-soft);border-radius:10px;padding:22px;display:flex;gap:25px;align-items:center;font-size:12px}.calc-result strong{font:36px var(--serif);white-space:nowrap}.calc-result p{margin:0}.range-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:23px 0}input[type=range]{width:100%;accent-color:var(--green)}.range-value{font-size:12px;float:right;color:var(--green)}.source-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}.source-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:24px;display:flex;flex-direction:column}.source-card h3{font-size:21px;margin:10px 0}.source-card p{font-size:12px;color:var(--muted);margin:12px 0}.source-card .text-link{margin-top:auto;align-self:start;font-size:11px}.source-access{font-size:10px;color:var(--green)}.method-box{padding:30px;background:var(--surface-soft);border-radius:var(--radius);margin-bottom:30px}.method-box h2{font-size:29px}.method-box p,.method-box li{font-size:13px;color:var(--body-text)}.update-card{border-left:3px solid var(--primary);padding:8px 0 8px 23px;margin:25px 0}.update-card h3{font-size:23px;margin-bottom:10px}.update-card p{font-size:13px;color:var(--muted)}.local-source{font-size:12px;color:var(--muted);overflow-wrap:anywhere}.shortcuts{display:flex;gap:8px;flex-wrap:wrap}.print-only{display:none}
/* Footer, search */
#footer{border-top:1px solid var(--line);padding:33px 0;background:var(--surface-soft)}.footer-row{display:flex;justify-content:space-between;gap:35px;align-items:start}.footer-brand{font:23px var(--serif)}.footer-copy{font-size:10px;color:var(--muted);margin-top:7px;max-width:390px;line-height:1.8}.footer-links{display:flex;gap:20px;font-size:10px;color:var(--body-text);padding-top:7px}.footer-bottom{font-size:9px;letter-spacing:.4px;color:var(--muted);margin-top:22px}.search-dialog{padding:0;border:1px solid var(--line);border-radius:16px;background:var(--paper);color:var(--ink);width:min(660px,calc(100% - 30px));max-height:80vh;box-shadow:0 30px 100px #0004}.search-dialog::backdrop{background:#09232999;backdrop-filter:blur(4px)}.search-head{display:flex;align-items:center;gap:15px;border-bottom:1px solid var(--line);padding:22px}.search-head input{background:transparent;border:0;width:100%;outline:none;font-size:16px;color:var(--ink)}.search-head button{background:transparent;border:1px solid var(--line);font-size:10px;border-radius:4px;padding:4px 7px}.search-results{padding:12px;max-height:55vh;overflow:auto}.search-result{display:block;padding:15px;border-radius:8px}.search-result:hover{background:var(--surface-soft)}.search-result strong{font:22px var(--serif)}.search-result small{display:block;color:var(--muted);font-size:10px;margin-top:5px}.search-hint{font-size:11px;color:var(--muted);padding:12px 15px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}#toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);z-index:100;background:var(--night);color:var(--white);border:1px solid #ffffff20;padding:12px 22px;border-radius:9px;box-shadow:0 10px 30px #0002;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;font-size:12px;max-width:calc(100% - 30px)}#toast.visible{opacity:1;transform:translate(-50%,0)}.hidden{display:none!important}.storage-alert{background:#f1e4cf;padding:12px;font-size:11px;text-align:center}
.input-wrap input[type=search]{padding-left:42px}.option:disabled{opacity:1}.source-box .icon{width:12px;height:12px}.rating-row button{flex-direction:column;gap:0}
@media(min-width:1600px){.container{max-width:1280px}.hero-grid{min-height:565px}.moon-scene{height:480px}.moon{width:285px;height:285px}}
@media(max-width:1100px){.container{width:calc(100% - 56px)}.topbar{gap:20px}.main-nav{gap:18px}.search-trigger span,.search-trigger kbd,.top-progress{display:none}.theme-grid{grid-template-columns:repeat(4,1fr)}.theme-card{padding:20px 17px}.theme-card h3{font-size:19px}.hero-grid{grid-template-columns:1.15fr 1fr}.moon{width:220px;height:220px}.orbit-label.l2{right:-5px}.welcome-row{grid-template-columns:1fr 285px}.continue-card{gap:17px;padding:23px}.continue-card .btn{font-size:11px;padding:10px 13px}.lab-grid{grid-template-columns:280px 1fr;gap:35px}.reader-layout{grid-template-columns:170px minmax(0,1fr);gap:35px}.exam-layout{grid-template-columns:1fr 260px;gap:25px}}
@media(max-width:800px){.container{width:calc(100% - 40px)}.topbar{height:70px;gap:12px}.brand-name{font-size:24px}.brandmark{width:30px}.brandmark svg{width:30px}.main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:15px 20px;flex-wrap:wrap;gap:8px 25px}.main-nav.open{display:flex}.main-nav a{padding:10px 0}.main-nav a.active:after{bottom:3px}.nav-tools{margin-left:auto}.menu-toggle{display:inline-grid}.search-trigger{border:0;padding:8px}.hero-grid{min-height:0;grid-template-columns:1fr .75fr;gap:0}.hero-copy{padding:48px 0}.hero h1{font-size:44px;letter-spacing:-1.7px}.hero .eyebrow{font-size:8px;letter-spacing:1.3px}.hero-copy>p{font-size:12px;max-width:340px}.hero .btn{font-size:11px;padding:10px 13px}.hero-foot{font-size:8px;gap:8px}.hero-foot span+span:before{margin-right:8px}.moon-scene{height:370px}.moon{width:180px;height:180px}.orbit-label{font-size:7px;letter-spacing:1px}.orbit-label.l3{left:-10px;top:140px}.orbit-label.l1{top:65px;right:20%}.orbit-label.l2{bottom:100px}.orbital-lines{width:360px;height:340px;max-width:140%}.orbit-caption{display:none}.moon-rule{font-size:7px;left:5%;bottom:55px}.stat-item{gap:10px}.stat-number{font-size:25px}.stat-label{font-size:8px}.welcome-row{grid-template-columns:1fr;margin-top:25px}.daily-card{display:none}.section{padding:45px 0}.theme-grid{grid-template-columns:repeat(2,1fr)}.theme-card{min-height:185px;padding:23px}.theme-card h3{font-size:22px}.theme-top{margin-bottom:20px}.lab-grid{grid-template-columns:1fr;gap:15px}.lab-grid>div:first-child{max-width:500px}.lab-grid h2{font-size:32px}.home-lab{padding:40px 0}.revision-banner{padding:30px;gap:25px}.revision-banner h2{font-size:29px}.revision-step{font-size:11px}.lesson-grid{grid-template-columns:repeat(2,1fr)}.page-top h1{font-size:42px}.reader-layout{grid-template-columns:1fr;padding-top:25px}.toc{display:none}.reader-top h1{font-size:43px}.reader-content{max-width:750px;margin:auto}.revision-grid{grid-template-columns:1fr}.mode-card{padding:25px}.exam-layout{grid-template-columns:1fr}.exam-rules{order:1}.notebook-row{grid-template-columns:1fr}.dashboard-stats{grid-template-columns:repeat(2,1fr)}.case-grid{grid-template-columns:1fr}.source-cards{grid-template-columns:1fr}.footer-row{flex-wrap:wrap}.footer-links{flex-wrap:wrap}.question{font-size:24px}}
@media(max-width:540px){.container{width:calc(100% - 32px)}.brand-sub{font-size:7px;letter-spacing:1.4px}.hero-grid{grid-template-columns:1fr}.hero-copy{padding:40px 0 30px}.hero .eyebrow{margin-bottom:22px}.hero h1{font-size:44px;max-width:340px}.hero-copy>p{max-width:350px;font-size:13px;margin-bottom:25px}.hero .btn{font-size:12px}.hero-foot{font-size:9px;margin-top:23px}.moon-scene{height:210px;position:relative;margin-top:-5px;margin-bottom:15px}.moon{width:150px;height:150px;margin-left:35px}.orbital-lines{width:340px;height:250px;max-width:110%;margin-left:15px}.orbit-label.l1{top:12px;right:25%}.orbit-label.l2{bottom:33px;right:8%}.orbit-label.l3{top:80px;left:7%}.moon-rule{display:none}.star.s1{top:22px;left:20%}.star.s3{left:16%;bottom:22px}.stats-grid{grid-template-columns:repeat(2,1fr);row-gap:18px;padding:22px 0}.stat-item:first-child{justify-content:center}.stat-item:nth-child(2){border:0}.stat-number{font-size:27px}.stat-label{font-size:10px}.welcome-row{margin-top:20px}.continue-card{padding:20px;flex-wrap:wrap;gap:15px}.continue-icon{width:45px;height:45px;border-radius:12px}.continue-body h3{font-size:21px}.continue-card>.btn{margin-left:60px;margin-top:0}.section-head{align-items:start;gap:15px}.section-head h2{font-size:30px}.section-head .text-link{font-size:10px;white-space:nowrap}.eyebrow{font-size:9px}.theme-grid{gap:11px}.theme-card{padding:18px 15px;min-height:199px}.theme-card h3{font-size:21px;line-height:1.2}.theme-card p{font-size:10px}.theme-icon{width:32px;height:32px}.theme-icon .icon{width:17px;height:17px}.theme-top{margin-bottom:22px}.theme-bottom{font-size:9px}.theme-bottom .icon{width:14px}.lab-grid{gap:10px}.hypno-box{padding:18px 13px}.stage-buttons{gap:5px}.stage-buttons button{padding:5px 9px;font-size:9px}.chart-header{font-size:10px}.revision-banner{grid-template-columns:1fr;padding:27px}.revision-banner h2{font-size:31px}.revision-steps{border-top:1px solid #ffffff20;padding-top:25px;gap:17px}.lesson-grid{grid-template-columns:1fr}.page-top{padding-top:30px}.page-top h1{font-size:37px;letter-spacing:-1px}.lead{font-size:13px}.breadcrumb{margin-bottom:23px;font-size:10px}.toolbar{flex-wrap:wrap}.input-wrap{flex-basis:100%;max-width:none}.toolbar select{width:100%;font-size:12px}.filter-list{gap:6px}.filter-btn{font-size:10px;padding:6px 10px}.reader-top h1{font-size:38px}.reader-meta{gap:12px;font-size:10px}.reader-meta .btn{font-size:10px}.reader-layout{padding-top:22px}.reader-content{font-size:14px;line-height:1.85}.reader-section h2{font-size:27px}.objectives{padding:20px}.objectives ul{font-size:12px}.essential{font-size:21px;padding-left:18px;margin:25px 0 30px}.revision-panel{padding:21px 16px;margin:30px 0}.revision-panel h2{font-size:28px}.tabs{gap:0}.tab{padding:10px 11px;font-size:10px}.question{font-size:23px}.option{padding:12px;font-size:12px;gap:10px}.question-actions{flex-wrap:wrap}.feedback{padding:16px;font-size:12px}.end-actions{flex-wrap:wrap}.lesson-next{padding:20px}.lesson-next h3{font-size:21px}.flashcard{padding:25px 20px;min-height:260px}.flash-question{font-size:25px}.flash-answer{font-size:13px}.rating-row{gap:7px}.rating-row button{min-width:90px;padding:9px;font-size:11px}.exam-card{padding:23px 18px}.exam-settings{grid-template-columns:1fr;gap:15px}.exam-settings select{width:100%}.practice-header{align-items:start}.practice-header h2{font-size:26px}.dashboard-stats{gap:10px}.metric{padding:18px}.metric strong{font-size:30px}.metric .eyebrow{font-size:8px}.list-panel{padding:22px}.note-actions .btn{font-size:11px}.tool-card{padding:23px 18px}.tool-card h2{font-size:27px}.calc-inputs{grid-template-columns:1fr;gap:13px}.calc-result{gap:17px;align-items:start}.calc-result strong{font-size:30px}.range-grid{grid-template-columns:1fr;gap:15px}.method-box{padding:23px}.footer-row{gap:22px}.footer-links{gap:12px 20px}.source-card{padding:22px}.search-head{padding:17px;gap:10px}.search-head input{font-size:14px}.chart-note{font-size:9px}.question-ref{font-size:9px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media print{#header,#footer,.toc,.btn,.icon-btn,.revision-panel,.reader-end,.lesson-next,.note-field,.autosave,.trap-box~.source-box .btn{display:none!important}body{background:white;font-size:11pt;color:black}.container{width:100%;max-width:none}.reader-layout{display:block;padding:20px 0}.reader-top{padding-top:0}.reader-top h1{font-size:30pt}.reader-content{font-size:11pt;max-width:none}.reader-section h2{font-size:18pt}.reader-section{break-inside:avoid-page}a[href^=https]:after{content:' (' attr(href) ')';font-size:8pt;overflow-wrap:anywhere}.source-box{font-size:9pt}.print-only{display:block;font-size:9pt}table{display:table;font-size:9pt}.objectives,.trap-box{background:#f4f4f4}.essential{font-size:14pt}}
/* Édition approfondie : bibliographies, répertoire et lecture longue. */
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