:root{--red:#e3203e;--red-dark:#c9112d;--red-light:#fff0f2;--ink:#17191f;--black:#20212a;--muted:#858895;--line:#ececf0;--canvas:#f7f8fa;--white:#fff;--blue:#4969e9;--blue-light:#eff3ff;--green:#178d59;--green-light:#eaf9f0;--orange:#df8a26;--shadow:0 12px 44px rgba(18,23,34,.05);--radius:20px;--font:'Segoe UI',Tahoma,Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:var(--font);background:var(--canvas);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.56}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #ffb5c2;outline-offset:3px}svg{flex-shrink:0}img{max-width:100%}h1,h2,h3,h4,p{margin-top:0}::selection{background:#ffd5dc}
/* Layout */
.app-shell{display:grid;grid-template-columns:255px minmax(0,1fr);min-height:100vh}.sidebar{background:#fff;border-right:1px solid var(--line);position:sticky;top:0;height:100vh;display:flex;flex-direction:column;padding:30px 20px 22px;z-index:8}.brand{display:flex;align-items:center;gap:12px;color:#14161c;min-width:0}.brand-icon{width:42px;height:42px;border-radius:13px;background:var(--red);display:flex;align-items:center;justify-content:center;color:#fff}.brand-name{font-size:20px;font-weight:800;letter-spacing:-.9px;line-height:1}.brand-name span{color:var(--red)}.brand-sub{font-size:10px;color:#aaaeba;font-weight:800;text-transform:uppercase;letter-spacing:2.4px;margin-top:6px}.brand.compact .brand-name{font-size:18px}.side-heading{font-size:10px;font-weight:800;color:#b1b3bc;letter-spacing:1.5px;text-transform:uppercase;margin:46px 15px 13px}.sidebar-nav{display:flex;flex-direction:column;gap:5px}.navlink{display:flex;align-items:center;gap:12px;color:#757885;padding:13px 14px;border-radius:12px;font-size:13px;font-weight:700;transition:.18s}.navlink:hover{background:#f8f8fa;color:var(--ink)}.navlink.active{background:var(--red-light);color:var(--red)}.navlink svg{width:18px;height:18px}.sidebar-spacer{flex:1}.side-help{padding:18px;background:#191b22;color:#fff;border-radius:18px;position:relative;overflow:hidden}.side-help:before{content:'';position:absolute;width:100px;height:100px;border:15px solid rgba(255,255,255,.045);border-radius:50%;right:-46px;top:-45px}.side-help strong{font-size:13px;display:block;line-height:1.4}.side-help p{font-size:11px;line-height:1.65;color:#aeb1bd;margin:8px 0 14px}.side-help a{font-size:12px;font-weight:700;color:#fff;display:inline-flex;gap:5px;align-items:center}.side-profile{display:flex;align-items:center;gap:10px;margin-top:22px;padding:15px 4px 0;border-top:1px solid var(--line)}.avatar{width:38px;height:38px;border-radius:13px;background:#f5e4e8;display:flex;align-items:center;justify-content:center;color:var(--red);font-weight:800;font-size:14px}.side-profile strong{display:block;font-size:12px;max-width:137px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.side-profile small{display:block;font-size:10px;color:var(--muted);margin-top:4px}.main-area{min-width:0}.topbar{height:92px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(255,255,255,.76);padding:0 45px;position:sticky;top:0;z-index:7;backdrop-filter:blur(15px)}.crumb{font-size:12px;color:#999ba5;font-weight:600}.crumb strong{color:var(--ink)}.top-actions{display:flex;gap:14px;align-items:center}.top-date{font-size:12px;color:#999ca9}.top-profile{width:37px;height:37px;border-radius:12px;background:#f7e1e6;display:flex;align-items:center;justify-content:center;color:var(--red);font-weight:800;font-size:12px}.main-content{max-width:1480px;margin:0 auto;padding:41px 45px 70px}.container{max-width:1180px;margin:0 auto;padding:0 30px}.public-header{height:87px;background:#fff;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 max(36px,calc((100vw - 1180px)/2));position:relative;z-index:5}.public-links{display:flex;align-items:center;gap:32px}.public-links>a{font-size:13px;color:#606572;font-weight:700}.public-links>a:hover{color:var(--red)}.mobile-menu{display:none}.auth-layout{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;background:#fff}.auth-art{background:#181b23;color:#fff;position:relative;overflow:hidden;padding:48px 8%;display:flex;flex-direction:column;justify-content:space-between}.auth-orb{position:absolute;border-radius:50%;border:75px solid rgba(255,255,255,.045);width:600px;height:600px;right:-200px;top:20%}.auth-orb.second{width:340px;height:340px;border-width:55px;right:70px;top:28%;opacity:.5}.auth-art>div{position:relative;z-index:1}.auth-art .brand{color:#fff}.auth-art .brand-name{color:#fff}.auth-art h2{font-size:clamp(38px,4vw,62px);letter-spacing:-2.8px;line-height:1.1;max-width:580px;margin:0}.auth-art p{font-size:15px;max-width:440px;color:#b0b4c0;line-height:1.85;margin:21px 0 0}.auth-stat{display:flex;gap:40px}.auth-stat strong{font-size:28px;letter-spacing:-1px;display:block}.auth-stat span{font-size:12px;color:#b9bdc7}.auth-right{display:flex;align-items:center;justify-content:center;padding:45px 9%}.auth-panel{max-width:460px;width:100%}.auth-panel h1{font-size:35px;letter-spacing:-1.6px;margin:0 0 11px}.auth-panel>p{color:#858997;font-size:14px;line-height:1.6;margin:0 0 30px}.auth-switch{display:flex;background:#f5f5f7;padding:5px;border-radius:12px;margin:0 0 29px}.auth-switch button{flex:1;padding:12px;border:0;background:transparent;border-radius:9px;color:#8c8e9b;font-size:13px;font-weight:800}.auth-switch button.active{background:#fff;color:var(--red);box-shadow:0 2px 10px #00000008}.field{display:block;margin-bottom:17px}.field span{display:block;font-size:12px;font-weight:800;margin-bottom:9px}.field input{width:100%;height:52px;border:1px solid #e7e8ed;border-radius:12px;background:#fff;padding:0 15px;font-size:13px;outline:0;transition:.2s}.field input:focus{border-color:var(--red);box-shadow:0 0 0 3px #e3203e11}.demo-box{margin-top:27px;padding:17px;background:#fff7f8;border:1px solid #ffdce3;border-radius:14px}.demo-box strong{font-size:12px;display:block;margin-bottom:8px}.demo-box p{font-size:11px;line-height:1.65;color:#8a6972;margin-bottom:14px}.demo-actions{display:flex;gap:7px;flex-wrap:wrap}.demo-actions button{background:#fff;border:1px solid #f0cdd5;color:#ad1d36;padding:9px 12px;border-radius:8px;font-size:11px;font-weight:800}.auth-foot{font-size:11px;color:#abb0ba;margin-top:22px;text-align:center;line-height:1.6}
/* Buttons and text */
.btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;background:var(--red);border:1px solid var(--red);border-radius:12px;color:#fff;min-height:45px;padding:11px 19px;font-weight:800;font-size:12px;transition:.18s;white-space:nowrap}.btn:hover:not(:disabled){background:var(--red-dark);border-color:var(--red-dark);transform:translateY(-1px)}.btn.dark{background:#1d2028;border-color:#1d2028}.btn.dark:hover{background:#353944}.btn.soft{background:var(--red-light);color:var(--red);border-color:var(--red-light)}.btn.soft:hover{background:#ffe1e8;border-color:#ffe1e8}.btn.outline{background:#fff;color:var(--ink);border:1px solid #e5e5ea}.btn.outline:hover{background:#f8f8fa;border-color:#dfe0e6}.btn.blue{background:var(--blue);border-color:var(--blue)}.btn.blue:hover{background:#314ecf;border-color:#314ecf}.btn.full{width:100%}.btn.large{min-height:52px;font-size:13px;border-radius:13px;padding:13px 23px}.btn svg{width:16px;height:16px}.small-link{color:var(--red);font-size:12px;font-weight:800;display:inline-flex;align-items:center;gap:6px}.small-link svg{width:14px}.muted{color:var(--muted)}.kicker{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:11px;text-transform:uppercase;letter-spacing:2px;color:var(--red)}.section-title{font-weight:800;font-size:20px;letter-spacing:-.8px;margin:0}.section-meta{color:var(--muted);font-size:12px;margin-top:7px}.page-title{font-size:32px;font-weight:800;letter-spacing:-1.4px;margin:0 0 8px}.page-sub{font-size:13px;line-height:1.65;color:#8a8d9a;margin:0}.header-row{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:29px}.eyebrow{font-size:10px;color:var(--red);font-weight:800;letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}.badge{display:inline-flex;gap:5px;align-items:center;font-size:10px;font-weight:800;padding:6px 10px;border-radius:30px;background:#f1f2f6;color:#727582}.badge.green{background:var(--green-light);color:var(--green)}.badge.red{background:var(--red-light);color:var(--red)}.badge.blue{background:var(--blue-light);color:var(--blue)}.badge svg{width:12px;height:12px}.flex{display:flex;align-items:center;gap:10px}.spacer{flex:1}.divider{height:1px;background:var(--line);margin:25px 0}.card{background:#fff;border:1px solid #eceef1;border-radius:var(--radius);box-shadow:var(--shadow)}.card.padded{padding:25px}.progress-track{height:7px;overflow:hidden;background:#eff0f4;border-radius:20px}.progress-track>span{display:block;height:100%;background:var(--red);border-radius:20px;transition:width .35s}.progress-track.blue>span{background:var(--blue)}.round-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;background:var(--red-light);color:var(--red)}.round-icon.blue{background:var(--blue-light);color:var(--blue)}.round-icon.green{background:var(--green-light);color:var(--green)}.round-icon svg{width:20px;height:20px}
/* Public landing */
.hero-public{background:#fff;padding:80px 0 86px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1fr 1.04fr;gap:44px;align-items:center}.hero-public h1{font-size:clamp(48px,5vw,74px);line-height:1.085;letter-spacing:-3.5px;margin:19px 0 22px;font-weight:800}.hero-public h1 em{font-style:normal;color:var(--red)}.hero-public p{font-size:15px;line-height:1.85;color:#777d8a;max-width:490px;margin-bottom:31px}.hero-buttons{display:flex;gap:12px;flex-wrap:wrap}.hero-notes{display:flex;gap:30px;margin-top:43px}.hero-note{display:flex;align-items:center;gap:9px;color:#858895;font-size:11px;font-weight:700}.hero-note svg{color:var(--red);width:15px}.hero-visual{height:460px;position:relative}.visual-panel{position:absolute;left:8%;right:0;top:32px;bottom:18px;background:#f3f4f7;border-radius:32px;overflow:hidden}.visual-panel:before{content:'';background:#e3203e;position:absolute;width:400px;height:400px;border-radius:50%;left:25%;top:25%;filter:blur(.1px)}.visual-panel:after{content:'';position:absolute;width:550px;height:550px;border:88px solid rgba(255,255,255,.26);border-radius:50%;right:-180px;top:-100px}.floating-course{position:absolute;z-index:2;background:#fff;border:1px solid #f0f0f4;box-shadow:0 20px 60px #16172217;border-radius:18px;padding:22px 24px;left:-10px;top:65px;width:335px}.floating-course .iconbox{width:42px;height:42px;border-radius:12px;background:var(--red-light);color:var(--red);display:flex;align-items:center;justify-content:center}.floating-course strong{display:block;font-size:15px;margin:13px 0 5px}.floating-course p{font-size:11px;color:#8c8e9b;line-height:1.45;margin:0 0 20px}.floating-course .progress-line{height:6px;background:#f1f1f4;border-radius:20px}.floating-course .progress-line span{display:block;width:72%;height:100%;background:var(--red);border-radius:20px}.floating-score{position:absolute;z-index:3;right:-12px;bottom:27px;width:220px;background:#fff;box-shadow:0 20px 60px #16172219;padding:22px;border-radius:18px}.floating-score strong{font-size:29px;letter-spacing:-1.3px}.floating-score p{font-size:11px;margin:3px 0 12px}.floating-score .badge{margin-bottom:10px}.visual-glasses{position:absolute;right:16%;top:40%;z-index:1;opacity:.85;color:#fff}.visual-glasses svg{width:180px;height:180px;stroke-width:1.4}.landing-section{padding:72px 0}.landing-intro{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.landing-intro h2{font-size:32px;letter-spacing:-1.5px;margin:9px 0 0}.landing-intro>p{font-size:13px;color:#838792;line-height:1.75;max-width:380px;margin:0}.public-course-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.public-course{background:#fff;border:1px solid var(--line);padding:28px;border-radius:22px;position:relative;overflow:hidden}.public-course .mini-icon{width:55px;height:55px;border-radius:16px;background:var(--red-light);color:var(--red);display:flex;align-items:center;justify-content:center}.public-course.blue .mini-icon{background:var(--blue-light);color:var(--blue)}.public-course h3{font-size:23px;letter-spacing:-1px;margin:19px 0 10px}.public-course p{font-size:13px;color:#838793;line-height:1.8;max-width:400px;min-height:50px}.public-course .meta{display:flex;gap:22px;color:#999daa;font-size:11px;margin:22px 0}.public-course .meta span{display:flex;gap:6px;align-items:center}.public-course .meta svg{width:15px;height:15px}.course-corner{position:absolute;width:190px;height:190px;right:-80px;top:-70px;border:38px solid #f8f9fb;border-radius:50%}.cta-dark{background:#1d2029;color:#fff;border-radius:26px;padding:47px 54px;display:flex;align-items:center;justify-content:space-between;gap:30px;margin-top:30px}.cta-dark h2{font-size:30px;letter-spacing:-1px;margin-bottom:10px}.cta-dark p{font-size:13px;color:#a7adbd;line-height:1.6;margin:0}.public-footer{border-top:1px solid var(--line);padding:25px 0;background:#fff;color:#9c9fa9;font-size:11px}.public-footer .container{display:flex;justify-content:space-between;gap:20px}
/* Dashboard */
.dash-welcome{padding:36px 39px;border-radius:23px;background:#20222b;position:relative;overflow:hidden;color:#fff;margin-bottom:23px;display:flex;align-items:center;justify-content:space-between;gap:20px}.dash-welcome:before,.dash-welcome:after{content:'';position:absolute;border-radius:50%;border:55px solid rgba(255,255,255,.035);width:260px;height:260px;right:15%;top:-160px}.dash-welcome:after{right:-110px;top:0;border-width:38px;width:220px;height:220px}.dash-welcome>div{z-index:1}.dash-welcome .eyebrow{color:#f88da0}.dash-welcome h1{font-size:30px;letter-spacing:-1.2px;margin:0 0 9px}.dash-welcome p{color:#b4b6c1;font-size:13px;margin:0;line-height:1.6}.dash-welcome .btn{background:#fff;color:#242630;border-color:#fff}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:19px;margin:22px 0 34px}.stat-card{padding:23px 25px;display:flex;justify-content:space-between;gap:15px}.stat-number{font-weight:800;font-size:30px;letter-spacing:-1px;margin-top:13px;line-height:1}.stat-label{color:#9195a1;font-size:11px;font-weight:700}.stat-detail{color:#a6a9b4;font-size:10px;margin-top:9px}.dash-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(260px,.95fr);gap:21px}.course-stack{display:flex;flex-direction:column;gap:17px;margin-top:20px}.course-card{padding:25px 26px;background:#fff;border:1px solid var(--line);border-radius:20px;display:flex;flex-direction:column;gap:20px}.course-card-head{display:flex;gap:15px}.course-card h3{font-size:17px;letter-spacing:-.5px;margin:1px 0 7px}.course-card p{font-size:11px;color:#858996;line-height:1.5;margin:0}.course-card .course-card-footer{display:flex;justify-content:space-between;align-items:center;gap:15px}.course-card .course-progress{flex:1}.course-card .course-progress p{display:flex;justify-content:space-between;margin-bottom:9px;font-size:11px}.course-card .course-progress strong{color:#31343b}.activity-card{padding:25px}.activity-card h3{font-size:17px;letter-spacing:-.5px}.activity-card>p{font-size:12px;color:#888e99;line-height:1.65}.activity-list{display:flex;flex-direction:column;gap:0;margin:20px 0}.activity-item{padding:14px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:11px}.activity-item:last-child{border:0}.activity-item .meta{flex:1}.activity-item strong{font-size:11px;display:block}.activity-item small{font-size:10px;color:#a0a4af;display:block;margin-top:6px}.study-tip{background:#fff7f8;border-radius:14px;padding:16px;color:#c4455b;font-size:11px;line-height:1.65}
/* Courses */
.course-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.catalog-card{padding:30px;position:relative;overflow:hidden}.catalog-card .icon{width:65px;height:65px;border-radius:18px;background:var(--red-light);color:var(--red);display:flex;align-items:center;justify-content:center;margin-bottom:22px}.catalog-card .icon.blue{background:var(--blue-light);color:var(--blue)}.catalog-card h2{font-size:21px;letter-spacing:-.8px;margin-bottom:8px}.catalog-card p{color:#8b8e9c;font-size:12px;line-height:1.7;min-height:52px}.catalog-card .cstats{font-size:11px;color:#999eac;display:flex;gap:22px;margin:22px 0}.catalog-card .progress-track{margin:10px 0 23px}.catalog-card .score-flag{position:absolute;top:28px;right:27px}.course-hero{background:#fff;border:1px solid var(--line);border-radius:24px;padding:35px;display:flex;justify-content:space-between;gap:30px;margin-bottom:22px;position:relative;overflow:hidden}.course-hero .course-icon{height:74px;width:74px;border-radius:23px;background:#fff1f3;color:var(--red);display:flex;align-items:center;justify-content:center;margin-bottom:19px}.course-hero.blue .course-icon{background:#eff3ff;color:var(--blue)}.course-hero .page-title{font-size:29px}.course-hero p{font-size:13px;color:#8e92a0;line-height:1.7;max-width:560px}.course-meta{display:flex;gap:22px;margin-top:21px;font-size:11px;color:#777d89;font-weight:700}.course-meta span{display:flex;gap:6px;align-items:center}.course-meta svg{width:14px}.course-hero aside{min-width:220px;background:#fafafb;border-radius:18px;padding:21px;display:flex;flex-direction:column;justify-content:space-between}.course-hero aside strong{font-size:29px;letter-spacing:-1.3px}.course-hero aside span{font-size:11px;color:#90939e}.course-hero aside .btn{margin-top:15px}.module-layout{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(250px,.78fr);gap:22px}.modules-card{padding:27px}.lesson-row{display:flex;align-items:center;gap:14px;padding:15px 0;border-top:1px solid var(--line);transition:.15s}.lesson-row:hover{background:#fcfcfd}.lesson-num{background:#f5f5f7;border-radius:11px;width:39px;height:39px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;color:#878b98;flex-shrink:0}.lesson-row.read .lesson-num{background:var(--green-light);color:var(--green)}.lesson-details{flex:1;min-width:0}.lesson-details strong{display:block;font-size:12px;line-height:1.5}.lesson-details small{display:block;font-size:10px;color:#9b9eaa;margin-top:5px}.lesson-row .arr{width:17px;color:#b8bbc4}.course-side{display:flex;flex-direction:column;gap:18px}.resource-card{padding:23px}.resource-card h3{font-size:14px;letter-spacing:-.2px;margin:16px 0 9px}.resource-card p{font-size:11px;color:#9599a6;line-height:1.7}.resource-card .btn{width:100%;margin-top:11px}.requirement-card{padding:23px;background:#1f222b;color:#fff}.requirement-card h3{font-size:15px;letter-spacing:-.3px}.requirement-card p{font-size:11px;color:#adb0bc;line-height:1.8;margin-bottom:18px}
/* Reader */
.reader-layout{display:grid;grid-template-columns:258px minmax(0,1fr);gap:22px;align-items:start}.chapter-nav{position:sticky;top:115px;max-height:calc(100vh - 136px);overflow:auto;background:#fff;border:1px solid var(--line);padding:22px 14px;border-radius:18px}.chapter-nav h4{font-size:12px;letter-spacing:-.1px;margin:2px 10px 6px}.chapter-nav .mini-caption{font-size:10px;color:#a2a6b0;padding:0 10px;margin:0 0 17px}.chapter-link{display:flex;align-items:start;gap:10px;padding:11px 9px;border-radius:10px;font-size:11px;line-height:1.5;color:#818593}.chapter-link .lidx{color:#aeb1bb;font-weight:800;font-size:10px;min-width:21px}.chapter-link:hover{background:#f8f8fa;color:var(--ink)}.chapter-link.active{background:#fff0f3;color:var(--red);font-weight:800}.chapter-link.done .lidx{color:var(--green)}.reading-area{min-width:0}.reading-card{background:#fff;border:1px solid var(--line);padding:42px 46px;border-radius:19px;min-height:560px}.reading-breadcrumb{font-size:11px;color:#a0a4af;margin-bottom:24px}.reading-card h1{font-size:29px;line-height:1.27;letter-spacing:-1.3px;margin-bottom:15px}.reading-meta{display:flex;gap:17px;flex-wrap:wrap;align-items:center;margin-bottom:25px;color:#9a9eaa;font-size:11px}.reading-meta svg{width:14px;height:14px}.lesson-body{font-size:13px;line-height:1.88;color:#525663;overflow-wrap:break-word}.lesson-body p{margin:0 0 18px}.lesson-body h3{font-size:18px;color:#232631;letter-spacing:-.4px;margin:31px 0 15px}.lesson-body strong{color:#262a36}.lesson-body figure{text-align:center;margin:22px 0}.course-figure img{width:auto;max-width:100%;max-height:450px;border:1px solid #eceef0;border-radius:14px}.table-scroll{overflow-x:auto;margin:20px 0 26px;border-radius:12px;border:1px solid #e9eaf0}.lesson-table{width:100%;border-collapse:collapse;font-size:11px;line-height:1.6;min-width:490px}.lesson-table th{text-align:left;background:#f6f7f9;color:#292d35;font-weight:800}.lesson-table td,.lesson-table th{padding:11px 12px;border-bottom:1px solid #edf0f3;border-right:1px solid #edf0f3;vertical-align:top}.lesson-table tr:last-child td{border-bottom:0}.reading-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}.reader-hint{font-size:11px;color:#a3a6b1;max-width:240px;line-height:1.5}.reader-actions{display:flex;gap:9px;flex-wrap:wrap;justify-content:flex-end}
/* Exam */
.exam-head{display:flex;align-items:center;gap:15px;justify-content:space-between;margin-bottom:25px}.exam-head .page-title{font-size:23px}.exam-container{max-width:975px;margin:0 auto}.exam-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:20px;align-items:start}.exam-paper{padding:38px}.q-progress{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;color:#888c99;font-weight:700;margin-bottom:22px}.exam-paper h2{font-size:21px;letter-spacing:-.5px;line-height:1.5;margin:25px 0 30px}.answer-grid{display:grid;gap:11px}.answer{width:100%;display:flex;align-items:center;gap:13px;padding:15px 16px;background:#fff;border:1px solid #e9ebef;border-radius:13px;text-align:left;color:#535967;font-size:13px;line-height:1.55;min-height:67px;transition:.17s}.answer:hover{border-color:#f0aab7;background:#fffafb}.answer.selected{border-color:var(--red);background:#fff7f8;color:#9f1d35}.answer .radio-dot{height:20px;width:20px;border-radius:50%;border:2px solid #dfe1e8;display:flex;align-items:center;justify-content:center;flex-shrink:0}.answer.selected .radio-dot{border-color:var(--red)}.answer.selected .radio-dot:after{content:'';width:9px;height:9px;background:var(--red);border-radius:50%}.answer .letter{font-size:11px;font-weight:800;color:#a1a5af;width:13px}.answer.selected .letter{color:var(--red)}.q-actions{display:flex;justify-content:space-between;gap:14px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}.exam-aside{padding:22px;position:sticky;top:113px}.exam-aside h3{font-size:13px;letter-spacing:-.1px}.exam-aside p{font-size:11px;color:#969aa6;line-height:1.65}.question-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:20px 0}.question-nav button{border:1px solid #eceef2;background:#f7f8fa;color:#777d88;width:35px;height:35px;font-size:11px;font-weight:800;border-radius:10px}.question-nav button.current{background:var(--red-light);color:var(--red);border-color:#ffd5dc}.question-nav button.answered{background:#f2f8f5;color:var(--green);border-color:#d6ece2}.question-nav button.current.answered{outline:2px solid var(--red);outline-offset:0}.exam-info{padding:15px;border-radius:12px;background:#f7f8fb;font-size:10px;line-height:1.7;color:#7d8290}
/* Results */
.result-hero{text-align:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:42px 28px;margin-bottom:27px}.result-circle{border:9px solid #daf1e4;width:120px;height:120px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 23px;font-size:31px;font-weight:800;color:var(--green);letter-spacing:-1px}.result-circle.fail{color:var(--red);border-color:#ffe0e5}.result-hero h1{font-size:25px;letter-spacing:-1px;margin-bottom:12px}.result-hero p{font-size:12px;line-height:1.65;color:#9195a2;max-width:480px;margin:0 auto 23px}.result-hero .button-row{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.review-list{display:grid;gap:14px}.review-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px}.review-item header{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:11px;color:#a0a3ac;margin-bottom:11px}.review-item h3{font-size:14px;line-height:1.55;margin-bottom:18px}.review-choices{display:grid;gap:8px;margin-bottom:16px}.review-choice{font-size:11px;padding:11px 13px;background:#f8f9fa;border-radius:9px;color:#818590;display:flex;justify-content:space-between;gap:8px}.review-choice.correct{background:#eaf9f0;color:var(--green);font-weight:700}.review-choice.wrong{background:#fff0f2;color:var(--red);font-weight:700}.explanation{font-size:11px;color:#787d89;line-height:1.75;padding:14px 16px;background:#f7f8fb;border-radius:10px}.explanation strong{color:#444955}
/* Profile and admin */
.profile-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(270px,.8fr);gap:21px}.profile-person{padding:27px;display:flex;gap:17px;align-items:center}.profile-person .avatar{height:64px;width:64px;border-radius:18px;font-size:22px}.profile-person h2{font-size:17px;margin-bottom:4px}.profile-person p{font-size:11px;color:#999eaa;margin:0}.profile-card{padding:27px}.profile-card h3{font-size:16px}.data-table-scroll{overflow:auto}.data-table{width:100%;border-collapse:collapse;min-width:620px}.data-table th{text-align:left;color:#a0a3ad;text-transform:uppercase;font-size:9px;letter-spacing:1px;font-weight:800;padding:15px 11px;border-bottom:1px solid var(--line)}.data-table td{font-size:11px;color:#5a606c;padding:16px 11px;border-bottom:1px solid #f0f1f4}.data-table tr:last-child td{border-bottom:0}.data-table td strong{color:#21242c;font-size:11px}.data-table .small-link{font-size:11px}.admin-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;margin:24px 0}.admin-stat{padding:24px}.admin-stat span{font-size:11px;color:#9599a7}.admin-stat strong{font-size:30px;font-weight:800;letter-spacing:-1px;display:block;margin:15px 0 0}.admin-tabs{display:flex;gap:7px;margin-bottom:17px}.admin-tabs button{border:1px solid #e7e9ec;background:#fff;padding:11px 16px;border-radius:10px;font-size:11px;font-weight:800;color:#858a97}.admin-tabs button.active{background:var(--red-light);color:var(--red);border-color:#ffdce2}.empty{padding:25px;text-align:center;color:#a1a5b0;font-size:12px;line-height:1.7}.page-loader{min-height:100vh;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;color:#9296a4;font-size:13px}.loader-logo{color:var(--red);font-size:34px;font-weight:900;letter-spacing:-1.8px}.mobile-shade{display:none}#toast{position:fixed;right:20px;bottom:20px;z-index:40;display:flex;flex-direction:column;gap:9px}.toast{background:#252830;color:white;font-size:12px;padding:15px 19px;border-radius:11px;box-shadow:0 10px 40px #0003;max-width:340px;animation:rise .2s}.toast.error{background:#c11934}.toast.success{background:#14845a}@keyframes rise{from{transform:translateY(10px);opacity:0}to{transform:translateY(0);opacity:1}}
@media(max-width:1230px){.topbar{padding:0 27px}.main-content{padding:31px 27px 60px}.sidebar{width:224px;padding:25px 14px}.app-shell{grid-template-columns:224px minmax(0,1fr)}.dash-grid{grid-template-columns:minmax(0,1fr) 300px}.reading-card{padding:32px}}
@media(max-width:1040px){.dash-grid,.module-layout,.profile-layout{grid-template-columns:1fr}.reader-layout{grid-template-columns:210px minmax(0,1fr)}.course-side{display:grid;grid-template-columns:1fr 1fr}.hero-public h1{font-size:52px}.hero-visual{height:400px}.floating-course{width:290px}.course-list{grid-template-columns:1fr}}
@media(max-width:820px){.app-shell{display:block}.sidebar{position:fixed;left:0;top:0;width:270px;transform:translateX(-105%);transition:transform .25s;box-shadow:10px 0 30px #1c213010}.sidebar.show{transform:translateX(0)}.mobile-shade.show{display:block;position:fixed;inset:0;background:#111a2770;z-index:7}.mobile-menu{display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);width:39px;height:39px;border-radius:10px;margin-right:12px}.mobile-menu svg{width:20px}.topbar{height:75px}.topbar .crumb{flex:1}.auth-layout{grid-template-columns:1fr}.auth-art{display:none}.auth-right{min-height:100vh}.public-header{padding:0 25px}.hero-grid{grid-template-columns:1fr}.hero-visual{height:330px;max-width:620px;width:100%;margin:0 auto}.hero-public{padding:60px 0}.hero-public h1{max-width:650px}.hero-notes{margin-top:30px}.public-course-grid{grid-template-columns:1fr}.reading-card{padding:28px}.exam-layout{grid-template-columns:1fr}.exam-aside{position:static;order:-1}.exam-aside h3,.exam-aside p{display:none}.question-nav{grid-template-columns:repeat(10,1fr)}.question-nav button{width:100%}}
@media(max-width:620px){.main-content{padding:24px 16px 45px}.topbar{padding:0 16px}.top-date{display:none}.container{padding:0 19px}.public-header{padding:0 19px;height:73px}.public-links>a:not(.btn){display:none}.brand-name{font-size:18px}.brand-icon{width:38px;height:38px}.hero-public h1{font-size:43px;letter-spacing:-2px}.hero-public p{font-size:13px}.hero-visual{height:280px}.visual-panel{top:14px}.floating-course{width:235px;padding:17px;left:4px;top:20px}.floating-course strong{font-size:12px}.floating-course p{font-size:10px}.floating-score{width:170px;padding:17px;right:0;bottom:13px}.floating-score strong{font-size:23px}.visual-glasses svg{width:120px}.hero-notes{flex-wrap:wrap;gap:14px}.landing-section{padding:50px 0}.landing-intro{display:block}.landing-intro h2{font-size:27px}.landing-intro p{margin-top:12px}.public-course{padding:24px}.cta-dark{padding:29px;display:block}.cta-dark h2{font-size:23px}.cta-dark .btn{margin-top:18px}.public-footer .container{display:block}.public-footer .container span{display:block;margin-top:5px}.page-title{font-size:26px}.header-row{align-items:flex-start;flex-direction:column}.dash-welcome{padding:27px;display:block}.dash-welcome h1{font-size:26px}.dash-welcome .btn{margin-top:21px}.stats-grid{grid-template-columns:1fr;gap:11px;margin:15px 0 30px}.stat-card{padding:19px}.stat-number{font-size:25px;margin-top:10px}.course-card{padding:19px}.course-card .course-card-footer{align-items:stretch;flex-direction:column}.course-card .course-card-footer .btn{width:100%}.course-hero{padding:25px;display:block}.course-hero .page-title{font-size:26px}.course-hero aside{margin-top:18px;min-width:0}.course-meta{flex-wrap:wrap;gap:12px}.course-side{grid-template-columns:1fr}.modules-card{padding:19px}.reader-layout{display:block}.chapter-nav{position:relative;top:auto;max-height:220px;margin-bottom:18px}.reading-card{padding:24px 20px}.reading-card h1{font-size:23px}.reading-footer{flex-direction:column;align-items:stretch}.reader-hint{max-width:none}.reader-actions{justify-content:stretch}.reader-actions .btn{flex:1}.exam-paper{padding:22px}.exam-paper h2{font-size:18px}.exam-head{align-items:flex-start;flex-direction:column}.question-nav{grid-template-columns:repeat(5,1fr)}.answer{font-size:12px;padding:13px}.q-actions{gap:8px}.q-actions .btn{padding:10px;font-size:11px}.result-hero{padding:28px 18px}.result-hero h1{font-size:21px}.review-item{padding:19px}.admin-summary{grid-template-columns:1fr}.auth-right{padding:25px}.auth-panel h1{font-size:28px}}

.course-intro{background:#fafafa;border:1px solid #edf0f3;border-radius:12px;margin:0 0 16px;padding:0 17px}.course-intro summary{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:800;padding:15px 0;cursor:pointer;list-style:none}.course-intro summary::-webkit-details-marker{display:none}.course-intro[open] summary{border-bottom:1px solid #eceef3}.course-intro .lesson-body{padding:17px 0 4px;font-size:11px}.course-intro .lesson-body h3{font-size:14px;margin:15px 0 8px}
/* Owner and training editor (v2) */
.minor-info{font-size:10px;line-height:1.6;color:#9398a5;margin-top:4px;max-width:350px}
.admin-action-row{display:flex;flex-wrap:wrap;gap:6px;min-width:205px}
.mini-btn{border:1px solid #e3e6eb;border-radius:8px;padding:8px 9px;background:#fff;color:#3f4651;font-size:10px;font-weight:800;line-height:1.25;white-space:nowrap}
.mini-btn:hover{border-color:#aaaebd;background:#fafafa}
.mini-btn.positive{background:#eaf9f0;color:#147e4d;border-color:#c9ead8}
.mini-btn.danger{background:#fff0f2;color:#bb1f39;border-color:#ffdae1}
.studio-head{padding:22px;display:flex;justify-content:space-between;align-items:center;gap:25px;margin-bottom:23px}
.studio-head strong{font-size:14px}.studio-head p{margin:7px 0 0}
.studio-select{min-width:245px;max-width:100%;background:#fff;border:1px solid #e5e7ed;border-radius:12px;padding:12px;color:#222;font:inherit;font-size:13px}
.studio-grid{display:grid;grid-template-columns:minmax(220px,320px) minmax(0,1fr);align-items:start;gap:18px}
.studio-list{padding:20px;max-height:75vh;overflow:auto;position:sticky;top:110px}
.studio-list h3{font-size:14px;margin:0 0 15px}
.studio-items{display:flex;flex-direction:column;gap:6px}
.studio-item{display:block;text-align:left;width:100%;background:#fff;border:1px solid #edf0f3;border-radius:10px;color:#5f6573;padding:10px 12px;font-size:11px;line-height:1.45;font-weight:600}
.studio-item small{display:block;color:#a3a5b0;margin-bottom:4px}
.studio-item.selected{border-color:#ffbbc9;background:#fff2f4;color:#b51d36}
.studio-main{padding:26px;min-width:0}
.studio-form .field input,.studio-form .field select,.studio-form .field textarea{display:block;width:100%;border:1px solid #e7e8ed;background:#fff;border-radius:11px;padding:13px 15px;color:#343741;font:inherit;font-size:13px;line-height:1.6}
.studio-form .field textarea{resize:vertical;min-height:100px}
.studio-form .field input[readonly]{background:#f6f7f9;color:#888d99}
.studio-form .field select{min-height:48px}
.editor-toolbar{display:flex;gap:6px;flex-wrap:wrap;padding:12px;background:#f7f8fa;border:1px solid #e7e8ed;border-bottom:0;border-radius:12px 12px 0 0}
.editor-toolbar button{background:#fff;border:1px solid #e1e3ea;padding:9px 12px;border-radius:8px;font-size:12px;font-weight:800;color:#3d4351}
.editor-toolbar button:hover{border-color:#e3203e;color:#e3203e}
.lesson-editable{min-height:280px;max-height:630px;overflow:auto;background:#fff;border:1px solid #e7e8ed;border-radius:0 0 12px 12px;padding:22px;outline:0;margin-bottom:22px;line-height:1.75}
.lesson-editable:focus{border-color:#e3203e;box-shadow:inset 0 0 0 1px #e3203e}
.lesson-editable:empty:before{content:attr(data-placeholder);color:#b0b4bf}
.studio-bottom{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}
@media(max-width:1040px){.studio-grid{grid-template-columns:230px minmax(0,1fr)}.studio-list{max-height:530px}}
@media(max-width:680px){.studio-grid{grid-template-columns:1fr}.studio-list{position:static;max-height:190px}.studio-head{flex-direction:column;align-items:stretch}.studio-select{width:100%}.studio-main{padding:18px}.admin-tabs{flex-wrap:wrap}.admin-tabs button{flex:1;white-space:nowrap}.lesson-editable{padding:14px}}
/* v4: delegated privileges, competitions and award certificates */
.permission-editor{display:grid;grid-template-columns:repeat(2,minmax(126px,1fr));gap:7px 12px;margin-top:13px;padding:12px;border:1px solid #f1e0e4;border-radius:12px;background:#fff8f9;max-width:370px}
.permission-editor label{font-size:11px;font-weight:600;display:flex;gap:6px;align-items:center;cursor:pointer;color:#4e5260}
.permission-editor input{accent-color:#d72645;width:15px;height:15px}
.permission-title{font-size:10px;color:#a34558;font-weight:800;grid-column:1/-1}
.permission-editor .mini-btn{justify-self:start;grid-column:1/-1;margin-top:5px}
.contest-create{padding:23px;margin:20px 0 25px}
.contest-create .section-title{margin-bottom:9px}
.contest-form{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr auto;gap:11px;align-items:end}
.contest-form .field{margin:0}.contest-form .field input,.contest-form .field select{width:100%;height:44px;border:1px solid #e4e6ec;border-radius:9px;padding:8px;font-size:12px;background:#fff;min-width:0}
.contest-form .btn{height:44px;white-space:nowrap}
.contest-block{padding:24px;margin:17px 0}
.contest-top{display:flex;gap:22px;align-items:flex-start;justify-content:space-between;margin-bottom:15px}
.contest-top h2{font-size:20px;margin:9px 0}
.contest-medal{background:#fff4d8;border:1px solid #f5e1ab;border-radius:16px;padding:12px 15px;font-weight:800;font-size:12px;color:#8a661a;max-width:280px;text-align:center}
.contest-actions{display:flex;gap:10px;align-items:center;justify-content:flex-end;margin-top:17px}
.cert-actions{display:flex;justify-content:flex-end;gap:9px;margin-bottom:20px}
.certificate{box-sizing:border-box;width:min(100%,900px);margin:0 auto;border:10px solid #eee4d5;outline:3px solid #c7aa73;outline-offset:-20px;background:radial-gradient(ellipse at center,#fff 45%,#fff9ed 100%);min-height:620px;text-align:center;padding:48px 30px 40px;font-family:Georgia,'Times New Roman',serif}
.certificate-brand{font-family:Arial,sans-serif;font-weight:900;font-size:24px;letter-spacing:-1px}.certificate-brand span{color:#d8233e}.certificate-brand small{display:block;letter-spacing:6px;font-size:9px;color:#a5a5a5;margin-top:4px}
.certificate-art{font-size:56px;margin:27px 0 0}.certificate-kicker{font-size:12px;font-weight:700;letter-spacing:4px;color:#b39a6d;margin-top:12px}.certificate h1{font-size:36px;color:#493c2d;letter-spacing:4px;margin:18px 0 26px}.certificate h2{font-size:31px;color:#cd2644;margin:15px 0 25px}.certificate h3{font-size:22px;margin:14px 0 18px}.certificate p{font-size:15px;color:#6e685f}.certificate-details{font-size:15px;font-weight:bold;margin:25px 0}.certificate-date{font-size:13px;color:#88785c}.certificate-footer{border-top:1px solid #e7d3ad;margin-top:30px;padding-top:18px;font-size:11px;color:#a49583}
@media(max-width:1280px){.contest-form{grid-template-columns:1fr 1fr}.contest-form .btn{justify-self:start}}
@media(max-width:620px){.permission-editor{grid-template-columns:1fr}.contest-form{grid-template-columns:1fr}.contest-top{flex-direction:column}.contest-medal{max-width:100%}.contest-actions{justify-content:flex-start;flex-wrap:wrap}.certificate{min-height:0;padding:28px 12px;border-width:7px}.certificate h1{font-size:22px;letter-spacing:1px}.certificate h2{font-size:24px}.certificate-art{margin:16px 0;font-size:40px}}
@media print{body,html{background:#fff!important}.sidebar,.topbar,.cert-actions,#toast,.mobile-shade,.public-header,.public-footer{display:none!important}.app-shell,.main-area,.main-content{display:block!important;margin:0!important;padding:0!important;max-width:100%!important}.certificate{width:100%!important;max-width:none!important;min-height:240mm!important;break-inside:avoid!important;margin:0 auto!important}@page{size:A4 portrait;margin:12mm}}
.personal-awards{padding:20px 24px;margin-bottom:22px;border:1px solid #ebd7a8;background:#fffaf0}.personal-awards h2{font-size:18px;color:#976a26}.personal-awards-list{display:flex;flex-wrap:wrap;gap:10px}.personal-awards-list a{color:#91681d;background:#fff1cb;border:1px solid #e8d3a2}
/* v5: modular courses, illustrated rich text, and automated 100%-score awards */
.topic-visual{display:block;margin:24px auto 30px;max-width:920px;text-align:center;break-inside:avoid}
.topic-visual img{display:block;width:100%;max-height:430px;object-fit:contain;border:1px solid #e8ebf1;border-radius:16px;background:#fafbfd}
.topic-visual figcaption{font-size:12px;color:#687080;padding:10px 18px;line-height:1.5}
.lesson-editable .topic-visual{border:2px dashed transparent;padding:6px}
.lesson-editable .topic-visual:hover,.lesson-editable .topic-visual:focus-within{border-color:#df7083;border-radius:12px}
.toolbar-note{font-size:11px;color:#777d8a;align-self:center;margin-left:4px}
.owner-welcome{background:linear-gradient(110deg,#131d32,#352034);color:#fff}
.owner-links{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:19px}
.owner-links .card{color:#333744;text-decoration:none;display:block}
.owner-links svg{color:#cc2a47}.owner-links strong{display:block;margin:9px 0}.owner-links p{font-size:12px;color:#878b97}
.award-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;margin-top:25px}
.award-card{padding:23px;display:flex;align-items:flex-start;flex-direction:column;gap:10px;color:#2d3140;text-decoration:none;min-height:230px;transition:transform .2s,box-shadow .2s}
.award-card:hover{transform:translateY(-3px);box-shadow:0 16px 30px #20263c17}
.award-emoji{font-size:40px}.award-card div{font-size:12px;color:#858996}.award-card .small-link{margin-top:auto}
.award-studio-layout{display:grid;grid-template-columns:minmax(275px,345px) minmax(0,1fr);gap:20px;align-items:start;margin-top:20px}
.award-studio-layout .field{display:flex;flex-direction:column;gap:6px;margin:0 0 15px}
.award-studio-layout .field small{color:#888d99;font-size:11px;line-height:1.5}
.award-studio-layout input[type=color]{width:120px;height:42px;padding:5px}
.award-settings{display:block}
.award-paper{aspect-ratio:1.414;min-height:0;padding:0!important;position:relative;width:100%;max-width:1000px;overflow:hidden;background-size:cover;background-position:center;border:8px solid #d5c7b5;outline:0!important;font-family:Georgia,'Times New Roman',serif}
.award-paper.award-elegant{background:radial-gradient(circle at center,#fffdf9 12%,#fff5ea 88%);border-color:#d2bca0}
.award-paper.award-classic{background:linear-gradient(135deg,#fbf7ed,#fafdfb);border-color:#a6a196;box-shadow:inset 0 0 0 10px #fff,inset 0 0 0 12px #c1ad7f}
.award-paper.award-modern{background:linear-gradient(160deg,#f7f8fa 60%,#fff 60%);border-color:#28334a}
.award-paper.custom-bg{background-size:cover;background-position:center}
.award-paper .award-inner{position:absolute;inset:7% 7% 5%;display:flex;flex-direction:column;align-items:center;text-align:center}
.award-paper .certificate-brand{font-family:Arial,sans-serif;font-size:clamp(15px,2.1vw,26px)}
.award-paper .certificate-kicker{font-size:clamp(8px,1.3vw,14px);margin:3% 0 0;letter-spacing:2px}
.award-paper h1{font-size:clamp(20px,3.2vw,42px);margin:1.8% 0;color:#9f223b;letter-spacing:2px}
.award-paper .award-label{margin:1% 0 0;font-size:clamp(9px,1.3vw,16px)}
.award-paper .award-name{position:absolute;left:2%;width:96%;transform:translateY(-50%);margin:0;font-weight:700;font-size:clamp(24px,3.9vw,48px);line-height:1.2}
.award-paper .award-subtitle{position:absolute;left:5%;right:5%;top:66%;font-size:clamp(10px,1.55vw,20px);font-weight:bold;color:#4f5260}
.award-paper h3{position:absolute;top:75%;left:5%;right:5%;font-size:clamp(13px,2vw,23px);margin:0;color:#42394b}
.award-paper .award-meta{position:absolute;top:84%;font:normal clamp(8px,1.15vw,13px) Arial,sans-serif;color:#7c7f88}
.award-paper .certificate-footer{position:absolute;bottom:0;left:0;right:0;width:100%;font-size:clamp(8px,1vw,12px);padding:12px 0 0;margin:0;border-color:#dac6bd}
@media(max-width:900px){.award-studio-layout{grid-template-columns:1fr}.owner-links{grid-template-columns:1fr}.award-paper .certificate-kicker{letter-spacing:1px}}
@media print{.award-studio-layout,.cert-actions,.owner-links{display:none!important}.award-paper{aspect-ratio:1.414!important;width:271mm!important;height:190mm!important;min-height:190mm!important;max-width:none!important;border-width:4mm!important;print-color-adjust:exact;-webkit-print-color-adjust:exact}.award-paper .award-inner{inset:8%}.award-paper .award-name{font-size:38pt!important}.award-paper h1{font-size:35pt!important}.award-paper h3{font-size:19pt!important}.award-paper .award-subtitle{font-size:15pt!important}.award-paper .award-meta{font-size:11pt!important}@page{size:A4 landscape;margin:6mm}}

/* Version 6 — team activity, profile cards, theme. */
.sidebar{overflow-y:auto;scrollbar-width:thin}.sidebar-nav{flex-shrink:0}.side-help{flex-shrink:0}.side-profile{flex-shrink:0}
.avatar img,.top-profile img{width:100%;height:100%;object-fit:cover;border-radius:inherit;display:block}.profile-person .avatar{width:78px;height:78px;font-size:28px;overflow:hidden}.side-profile .avatar{overflow:hidden;flex-shrink:0}
.theme-switch{border:1px solid var(--line);background:var(--white);border-radius:12px;width:38px;height:38px;font-size:18px;color:var(--ink)}.theme-switch:hover{border-color:var(--red)}
.archive-tools,.privacy-note{margin-top:20px;border:1px solid var(--line);border-radius:14px;background:var(--canvas);padding:18px}.archive-tools .btn{margin-top:10px}.archive-tools p{margin:8px 0!important}.privacy-note{margin:0 0 18px;display:flex;align-items:flex-start;gap:12px;line-height:1.6;font-size:13px;color:var(--muted)}
.member-line{display:flex;align-items:center;gap:12px;min-width:170px}.member-line .avatar{width:36px;height:36px;flex-shrink:0}.birthday-row{display:flex;align-items:center;gap:13px;padding:12px 0;border-bottom:1px solid var(--line)}.birthday-row:last-child{border:0}.birthday-row strong{flex:1}.birthday-row .avatar{overflow:hidden;flex-shrink:0}
.v6-stack{display:grid;gap:20px}.poll-option{width:100%;background:var(--white);border:1px solid var(--line);border-radius:13px;display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:10px;text-align:left;padding:15px;color:var(--ink);font-size:13px}.poll-option.selected{background:var(--red-light);border-color:var(--red);color:var(--red)}.poll-option:hover{border-color:var(--red)}.suggestion{padding:12px 0;border-bottom:1px solid var(--line);line-height:1.6}.suggestion:last-child{border:0}
.chat-window{display:flex;flex-direction:column;gap:14px;min-height:240px;max-height:470px;overflow-y:auto;padding:20px;background:var(--canvas);border-radius:14px;border:1px solid var(--line);margin:16px 0}.chat-bubble{max-width:min(80%,580px);background:var(--white);border-radius:14px;padding:12px 15px;border:1px solid var(--line);align-self:flex-start}.chat-bubble.mine{background:var(--red-light);border-color:color-mix(in srgb,var(--red) 18%,var(--line));align-self:flex-end}.chat-bubble small,.oversight-msg small{font-size:11px;color:var(--muted)}.chat-bubble p,.oversight-msg p{margin:7px 0 0;font-size:13px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere}.chat-compose textarea,.v6-stack textarea{width:100%;min-height:90px;border:1px solid var(--line);border-radius:12px;padding:13px;background:var(--white);color:var(--ink);font:inherit;resize:vertical}.chat-compose .flex{margin-top:12px}.oversight-msg{border-bottom:1px solid var(--line);padding:16px 0}.oversight-msg .mini-btn{margin-top:9px}.oversight-msg:last-child{border:0}
#birthdayForm{margin-top:15px}.field input[type="checkbox"]{width:auto;height:auto;accent-color:var(--red);vertical-align:middle;margin-right:8px}#profileAvatarFile{width:100%;margin:10px 0}
html[data-theme=dark]{color-scheme:dark;--ink:#edf0f6;--black:#f4f6fa;--muted:#aab3c4;--line:#313847;--canvas:#111722;--white:#1b2330;--red-light:#3c202e;--blue-light:#25334d;--green-light:#1d3931;--shadow:0 10px 42px #0005}
html[data-theme=dark] body,html[data-theme=dark] .main-area{background:var(--canvas);color:var(--ink)}
html[data-theme=dark] .sidebar,html[data-theme=dark] .topbar,html[data-theme=dark] .card,html[data-theme=dark] .public-header,html[data-theme=dark] .auth-right,html[data-theme=dark] .auth-layout{background:var(--white);color:var(--ink)}
html[data-theme=dark] .sidebar{border-color:var(--line)}html[data-theme=dark] .topbar{background:#1b2330eb}
html[data-theme=dark] .brand,html[data-theme=dark] .brand-name,html[data-theme=dark] .crumb strong{color:var(--ink)}
html[data-theme=dark] .navlink:hover,html[data-theme=dark] .round-icon,html[data-theme=dark] .auth-switch,html[data-theme=dark] .studio-select,html[data-theme=dark] .studio-item,html[data-theme=dark] .course-card,html[data-theme=dark] .course-stack article,html[data-theme=dark] .lesson-editable,html[data-theme=dark] .course-intro,html[data-theme=dark] .exam-paper,html[data-theme=dark] .exam-aside,html[data-theme=dark] .answer{background:#242f40;color:var(--ink)}
html[data-theme=dark] .field input,html[data-theme=dark] .field textarea,html[data-theme=dark] .field select,html[data-theme=dark] input:not([type=checkbox]),html[data-theme=dark] textarea,html[data-theme=dark] select{background:#151e2a;color:var(--ink);border-color:var(--line)}
html[data-theme=dark] .auth-switch button.active,html[data-theme=dark] .answer.selected,html[data-theme=dark] .studio-item.selected{background:var(--red-light);color:#ff8ea4}
html[data-theme=dark] .data-table tr,html[data-theme=dark] .data-table th,html[data-theme=dark] .data-table td,html[data-theme=dark] .lesson-row,html[data-theme=dark] .course-card-footer{border-color:var(--line)}
html[data-theme=dark] .course-hero,html[data-theme=dark] .dash-welcome,html[data-theme=dark] .result-hero,html[data-theme=dark] .owner-welcome{background:linear-gradient(135deg,#312335,#182238);color:var(--ink)}
html[data-theme=dark] .course-hero p,html[data-theme=dark] .dash-welcome p,html[data-theme=dark] .owner-welcome p{color:#c3ccda}
html[data-theme=dark] .badge,html[data-theme=dark] .stat-label,html[data-theme=dark] .muted,html[data-theme=dark] .minor-info{color:var(--muted)}
html[data-theme=dark] .landing-section,html[data-theme=dark] .hero-public,html[data-theme=dark] .public-course,html[data-theme=dark] .public-footer{background:var(--white);color:var(--ink)}
html[data-theme=dark] .auth-art{background:#0c1018}html[data-theme=dark] .award-paper,html[data-theme=dark] .certificate{color:#20232b;color-scheme:light}
@media(max-width:650px){.chat-bubble{max-width:94%}.birthday-row{flex-wrap:wrap}.top-date{display:none}.theme-switch{width:35px;height:35px}.privacy-note{padding:12px}.member-line{min-width:120px}}
.v6-team-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}.v6-team-summary h3{font-size:14px;margin:15px 0}.v6-team-summary .birthday-row .avatar{width:30px;height:30px;font-size:10px}.v6-team-summary .birthday-row{font-size:12px}@media(max-width:830px){.v6-team-summary{grid-template-columns:1fr;gap:10px}}

/* v6.1 — readable sender alerts across all pages. */
.unread-badge{display:inline-flex;align-items:center;justify-content:center;border-radius:100px;background:#cc2544;color:white;font-weight:800;font-size:10px;line-height:1;min-width:19px;height:19px;padding:0 5px;margin-left:auto}
.unread-badge[hidden],.notifications-popover[hidden]{display:none!important}
.notification-wrap{position:relative;flex-shrink:0}
.notification-bell{width:42px;height:42px;border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:12px;display:flex;align-items:center;justify-content:center;position:relative;cursor:pointer}
.notification-bell:hover,.notification-bell.has-unread{border-color:#dc6c83;color:var(--red)}
.notification-bell .unread-badge{position:absolute;top:-7px;right:-8px;box-shadow:0 0 0 2px var(--white)}
.notifications-popover{position:absolute;top:calc(100% + 12px);right:0;width:min(395px,calc(100vw - 24px));max-height:560px;display:flex;flex-direction:column;border-radius:16px;background:var(--white);color:var(--ink);border:1px solid var(--line);box-shadow:0 20px 55px #0003;z-index:22;overflow:hidden}
.notifications-popover header{display:flex;align-items:center;justify-content:space-between;padding:18px 18px 12px;gap:12px;border-bottom:1px solid var(--line)}
.notifications-popover header strong{font-size:14px}.notifications-popover header span{color:var(--muted);font-size:11px}
.notify-list{max-height:380px;overflow-y:auto}.notify-empty{padding:26px 18px;text-align:center;color:var(--muted);font-size:13px}
.notify-row{appearance:none;display:flex;align-items:center;gap:12px;width:100%;text-align:left;border:0;border-bottom:1px solid var(--line);padding:14px 17px;background:var(--white);color:var(--ink);cursor:pointer}
.notify-row:hover{background:var(--canvas)}.notify-user{display:flex;flex-shrink:0;align-items:center;justify-content:center;background:var(--red-light);color:var(--red);width:39px;height:39px;border-radius:13px;font-size:11px;font-weight:800}
.notify-row-text{min-width:0;flex:1;display:flex;flex-direction:column;gap:4px}.notify-row-text strong{font-size:12px}.notify-row-text small{font-size:12px;color:var(--muted);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.notify-row-text>span{font-size:10px;color:var(--muted)}
.notifications-popover footer{display:flex;justify-content:space-between;align-items:center;padding:13px 16px;gap:10px}.notifications-popover footer a,.notify-sound{font-size:11px;font-weight:700;color:var(--red)}.notify-sound{border:0;background:none;cursor:pointer;color:var(--ink)}
.incoming-toast{width:min(355px,calc(100vw - 32px));display:flex;gap:12px;align-items:flex-start;background:var(--white);color:var(--ink);border:1px solid var(--line);border-left:4px solid var(--red);border-radius:14px;padding:15px;box-shadow:0 15px 40px #0003;animation:rise .2s}.notify-toast-icon{color:var(--red)}.incoming-toast-text{flex:1;min-width:0}.incoming-toast-text strong{font-size:13px}.incoming-toast-text p{font-size:12px;color:var(--muted);margin:5px 0 8px;word-break:break-word}.incoming-toast-text button{font-size:12px;color:var(--red);font-weight:800;background:none;border:0;padding:0;cursor:pointer}.notify-dismiss{background:transparent;border:0;color:var(--muted);font-size:20px;cursor:pointer}
.inbox-thread{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line)}.inbox-thread .notify-row{border:0;min-width:0;flex:1}.inbox-thread-count{font-size:11px;color:var(--red);font-weight:800;white-space:nowrap;margin-right:8px}
@media(max-width:700px){.notification-bell{height:36px;width:36px}.notifications-popover{position:fixed;top:75px;left:12px;right:12px;width:auto;max-width:none}.top-actions{gap:9px}.inbox-thread-count{font-size:10px}}

.notify-hint{font-size:10px;padding:7px 16px 13px;color:var(--muted);background:var(--white)}
.mail-recipient-list{border:1px solid var(--line);border-radius:12px;padding:12px 15px;margin-bottom:18px;color:var(--ink);font-size:12px}
.mail-recipient-list summary{cursor:pointer;font-weight:800;padding:4px}
.mail-recipient-list>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 15px;max-height:230px;overflow:auto;padding:12px 5px}
.mail-recipient-list label{display:flex;align-items:center;gap:9px;cursor:pointer;color:var(--ink)}
.mail-recipient-list input{accent-color:var(--red);width:16px;height:16px}
@media(max-width:620px){.mail-recipient-list>div{grid-template-columns:1fr}}