:root{--navy:#081c2a;--navy2:#102b3c;--ocean:#184c5a;--teal:#51ccb7;--teal-dark:#167c73;--mint:#e7f9f3;--gold:#f2bd73;--red:#e87c75;--bg:#f3f7f8;--white:#fff;--text:#142a36;--muted:#71848f;--border:#e4edef;--shadow:0 14px 46px rgba(9,35,47,.06);--radius:20px;--sidebar:250px;--max:1160px;color-scheme:light;font-family:Inter,"Segoe UI",Roboto,-apple-system,BlinkMacSystemFont,Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(51,189,168,.38);outline-offset:3px}a{color:inherit;text-decoration:none}svg{display:block}.hidden{display:none!important}.icon{width:21px;height:21px;display:inline-block;vertical-align:middle;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;fill:none;flex-shrink:0}.icon.small{width:16px;height:16px}.icon.large{width:27px;height:27px}.icon.xl{width:33px;height:33px}
#app{display:flex;min-height:100vh}.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);background:var(--navy);color:#d7ebed;display:flex;flex-direction:column;padding:28px 17px 17px;z-index:30}.brand{display:flex;align-items:center;gap:10px;padding:2px 8px;border:0;background:none;text-align:left;color:#fff}.brand-mark{display:grid;place-items:center;width:44px;height:44px;color:var(--teal);background:rgba(80,202,184,.11);border:1px solid rgba(80,202,184,.17);border-radius:14px;flex:none}.brand-mark svg{width:32px}.brand-name{font-size:18px;font-weight:900;letter-spacing:1.1px;line-height:1.12}.brand-small{display:block;color:#84aeb7;font-size:8.5px;letter-spacing:2.3px;margin-top:6px;font-weight:700}.sidebar-section-label{color:#637f8d;font-size:10px;font-weight:800;letter-spacing:1.8px;margin:52px 14px 18px}.side-links{display:flex;flex-direction:column;gap:6px}.side-link{border:0;background:none;color:#a5bdc4;border-radius:12px;min-height:47px;display:flex;align-items:center;gap:14px;padding:0 14px;font-size:13px;font-weight:650;text-align:left;transition:background .15s,color .15s;white-space:nowrap}.side-link .icon{width:20px}.side-link:hover,.side-link.active{background:rgba(85,196,176,.12);color:#e9fff9}.side-link.active{box-shadow:inset 3px 0 0 var(--teal)}.side-link.active .icon{color:#58d0ba}.sidebar-bottom{margin-top:auto}.sidebar-promo{background:linear-gradient(150deg,#19445a,#113141);border:1px solid rgba(119,183,189,.16);padding:19px 17px;border-radius:18px;color:white;display:flex;flex-direction:column;gap:12px;margin-bottom:14px;position:relative;overflow:hidden}.sidebar-promo:after{content:"";position:absolute;width:160px;height:160px;border:1px solid rgba(117,211,190,.15);border-radius:50%;right:-95px;bottom:-108px}.promo-kicker{font-size:9px;font-weight:900;letter-spacing:2px;color:#75d8c6}.sidebar-promo strong{font-size:15px;line-height:1.5;letter-spacing:-.2px}.promo-wave{color:#80d6c5;font-size:21px;letter-spacing:8px}.settings-link{width:100%}.side-footer{display:block;font-size:9px;letter-spacing:1.1px;text-align:center;color:#587481;margin:14px 0 0}
.workspace{margin-left:var(--sidebar);width:calc(100% - var(--sidebar));min-width:0;min-height:100vh;display:flex;flex-direction:column}.topbar{height:89px;padding:0 clamp(24px,4vw,58px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);background:rgba(249,252,252,.93);position:sticky;top:0;z-index:25;backdrop-filter:blur(15px)}.eyebrow{font-size:10px;font-weight:800;letter-spacing:2.1px;color:var(--teal-dark);margin-bottom:7px}.top-title{font-size:19px;line-height:1.15;font-weight:800;letter-spacing:-.7px}.top-actions{display:flex;align-items:center;gap:11px}.top-icon,.profile-dot{border:1px solid var(--border);background:#fff;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:#3d6670}.top-icon:hover{background:var(--mint);color:var(--teal-dark)}.profile-dot{background:var(--navy);border-color:var(--navy);color:#a6e5d8;font-size:12px;font-weight:900}.bottom-nav{display:none}main#view{width:100%;max-width:calc(var(--max) + 116px);padding:38px clamp(24px,4vw,58px) 70px;margin:0 auto;flex:1}.page-footer{text-align:center;font-size:9px;letter-spacing:1.4px;color:#9aaaae;padding:0 15px 23px;font-weight:800}.page-footer span{color:#cad4d8;margin:0 7px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin:38px 0 18px}.section-head h2{font-size:23px;letter-spacing:-.9px;margin:0;font-weight:850}.section-head p{font-size:12px;color:var(--muted);margin:6px 0 0}.section-head .view-all{white-space:nowrap}.kicker{font-size:10px;font-weight:850;letter-spacing:2px;color:var(--teal-dark);text-transform:uppercase}.section-sub{color:var(--muted);font-size:14px;line-height:1.65}.screen-title{font-size:clamp(27px,3vw,38px);font-weight:850;letter-spacing:-1.4px;line-height:1.15;margin:8px 0 11px}.screen-intro{margin:0 0 28px;max-width:720px;color:#69808b;font-size:14px;line-height:1.75}
.btn{border:0;background:var(--navy);color:#fff;padding:13px 18px;min-height:46px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:750;font-size:13px;transition:transform .15s,box-shadow .15s,background .15s;line-height:1.2}.btn:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(6,30,43,.12)}.btn:active{transform:scale(.98)}.btn-mint{background:#5bd4bd;color:#07282e}.btn-mint:hover{background:#8ae8d6}.btn-quiet{background:#fff;color:#153844;border:1px solid var(--border)}.btn-quiet:hover{background:var(--mint)}.btn-soft{background:#e6f6f1;color:#167b73}.btn-soft:hover{background:#d3efe7}.btn-outline-light{background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.25);color:#fff}.btn-sm{padding:9px 13px;min-height:38px;font-size:12px;border-radius:10px}.btn-full{width:100%}.plain-link{border:0;background:none;color:var(--teal-dark);font-weight:800;font-size:13px;display:inline-flex;align-items:center;gap:6px;padding:6px 0}.plain-link:hover{text-decoration:underline}.circle-btn{border:1px solid var(--border);background:#fff;display:grid;place-items:center;border-radius:11px;min-width:42px;height:42px;color:#58727c}.circle-btn.active{background:#d9f5ed;color:#087668;border-color:#b6e7dc}.circle-btn:hover{background:#eaf7f3}
.hero{min-height:292px;border-radius:26px;background:radial-gradient(circle at 74% 35%,#2b6871 0,#164353 35%,#081e2c 92%);color:#fff;position:relative;overflow:hidden;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;padding:32px 36px;box-shadow:0 24px 52px rgba(7,40,53,.14)}.hero-content{z-index:2;position:relative}.hero-label{display:flex;align-items:center;gap:9px;font-size:10px;color:#9ee4d6;font-weight:850;letter-spacing:2px;margin-bottom:22px}.hero-label:before{content:"";width:23px;height:2px;background:#63d3c1}.hero h1{font-size:clamp(28px,3.3vw,44px);letter-spacing:-1.7px;line-height:1.11;max-width:450px;margin:0 0 14px;font-weight:850}.hero h1 em{color:#8cdece;font-style:normal}.hero p{font-size:13px;color:#bad5db;line-height:1.75;max-width:390px;margin:0 0 23px}.hero-btns{display:flex;gap:10px;flex-wrap:wrap}.hero-art{width:100%;height:260px;align-self:end;max-width:490px;filter:drop-shadow(0 12px 18px rgba(0,0,0,.16))}.hero-grid{position:absolute;inset:0;pointer-events:none;opacity:.2;background-image:radial-gradient(circle,rgba(231,255,249,.33) 1px,transparent 1px);background-size:27px 27px;mask-image:linear-gradient(90deg,transparent 30%,black 100%)}
.summary-row{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:19px}.stat{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--border);border-radius:18px;padding:19px 20px;box-shadow:var(--shadow)}.stat-icon{width:48px;height:48px;border-radius:15px;background:#e9f6f2;color:#128f7a;display:grid;place-items:center;flex-shrink:0}.stat-icon.orange{background:#fff2e6;color:#d08737}.stat-icon.blue{background:#eaf1f8;color:#4f83a0}.stat-value{display:block;font-size:25px;font-weight:850;letter-spacing:-1px;line-height:1.05}.stat-label{display:block;font-size:11px;color:#83939b;margin-top:6px;font-weight:650}
.quick-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:16px}.feature-card{background:white;border:1px solid var(--border);border-radius:21px;padding:23px;box-shadow:var(--shadow);min-width:0}.feature-top{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}.feature-icon{width:49px;height:49px;background:#e8f6f0;border-radius:14px;display:grid;place-items:center;color:#10836f}.feature-icon.amber{background:#fff0de;color:#b97926}.feature-card h3{margin:17px 0 6px;line-height:1.28;letter-spacing:-.5px;font-size:19px}.feature-card p{color:var(--muted);font-size:12px;line-height:1.68;margin:0 0 18px}.tile-kicker{font-size:10px;letter-spacing:1.2px;color:var(--teal-dark);font-weight:800}.mini-progress{height:6px;border-radius:100px;background:#e9f0f1;overflow:hidden}.mini-progress span{display:block;background:var(--teal);height:100%;border-radius:100px;transition:width .2s}.mini-meta{display:flex;justify-content:space-between;color:#92a2a9;font-size:10px;margin:12px 0 0;font-weight:700}
.search-prompt{width:100%;text-align:left;border:1px solid #dce7e8;background:white;border-radius:15px;padding:16px 19px;display:flex;align-items:center;gap:13px;color:#82959c;font-size:13px;margin-top:20px;box-shadow:var(--shadow);min-height:56px}.search-prompt .icon{color:#407080}.search-prompt span:nth-child(2){flex:1}.keycap{font-size:11px;background:#f0f4f4;padding:4px 7px;border:1px solid #e7eeee;border-radius:6px;color:#98a7a9}
.chapter-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.chapter-card{border:1px solid var(--border);background:white;border-radius:18px;padding:19px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow);text-align:left;transition:transform .2s,border-color .2s,box-shadow .2s;min-width:0}.chapter-card:hover{border-color:#b6e3da;transform:translateY(-3px);box-shadow:0 16px 30px rgba(6,56,65,.09)}.chapter-card-top{display:flex;justify-content:space-between;align-items:center}.chapter-number{font-size:11px;color:#0a8b76;letter-spacing:1.2px;font-weight:850}.chip{font-size:10px;font-weight:800;color:#41746e;background:#e8f6f1;border-radius:8px;padding:7px 9px}.chip.amber{background:#fff2e4;color:#a2773b}.chip.blue{background:#edf4f9;color:#577f9d}.chip.rose{background:#fff0ec;color:#b16d61}.chapter-card-title{font-weight:820;letter-spacing:-.45px;font-size:16px;line-height:1.35;min-height:43px}.chapter-card-sub{font-size:12px;color:#87999f;line-height:1.48}.chapter-progress{display:flex;align-items:center;gap:10px;font-size:11px;color:#7c8e94;font-weight:700}.chapter-progress .mini-progress{flex:1}.chapter-footer{display:flex;justify-content:space-between;align-items:center;color:#6c838d;font-size:12px}.chapter-footer .icon{color:#0b987e}
.hero-secondary{background:linear-gradient(125deg,#0b2836,#154e59);border-radius:23px;color:white;padding:30px 32px;display:flex;justify-content:space-between;align-items:center;gap:25px;position:relative;overflow:hidden}.hero-secondary::after{content:"";position:absolute;border:1px solid rgba(117,211,190,.19);width:280px;height:280px;border-radius:50%;right:-120px;top:-130px;pointer-events:none}.hero-secondary h1{margin:8px 0 8px;font-size:clamp(24px,3vw,34px);letter-spacing:-1px;line-height:1.18}.hero-secondary p{max-width:670px;margin:0;color:#afc9cd;font-size:13px;line-height:1.65}.hero-secondary .kicker{color:#8ae1d0}.hero-secondary .secondary-symbol{font-size:88px;color:rgba(115,208,191,.29);font-weight:200;line-height:1}
.filters{display:flex;gap:9px;overflow:auto;scrollbar-width:none;margin:24px 0}.filters::-webkit-scrollbar{display:none}.filter-btn{border:1px solid var(--border);background:#fff;color:#789096;white-space:nowrap;font-size:12px;font-weight:750;padding:11px 15px;border-radius:100px;min-height:40px}.filter-btn.active{background:var(--navy);border-color:var(--navy);color:white}
.back-row{display:flex;align-items:center;gap:10px;margin-bottom:18px}.back-link{border:0;background:none;color:#50747d;font-weight:750;display:flex;align-items:center;gap:8px;font-size:12px;padding:6px 0}.detail-meta{display:flex;flex-wrap:wrap;gap:8px;margin:19px 0 0}.detail-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.1);border-radius:100px;font-size:11px;font-weight:750;color:#d9f4ee;padding:9px 12px}.content-two{display:grid;grid-template-columns:1.52fr .8fr;gap:20px;margin-top:24px;align-items:start}.content-pane{background:#fff;border:1px solid var(--border);border-radius:20px;padding:24px;box-shadow:var(--shadow);min-width:0}.content-pane h2{margin:0 0 15px;font-size:18px;letter-spacing:-.4px}.content-pane p{line-height:1.7;color:#647b84;font-size:13px}.lesson-row{width:100%;border:0;background:#fff;border-bottom:1px solid #eef2f2;display:flex;align-items:center;gap:14px;padding:17px 2px;text-align:left;min-height:78px}.lesson-row:last-child{border-bottom:0}.lesson-row:hover .lesson-row-title{color:#098b78}.lesson-index{background:#f0f5f4;color:#8da3a6;width:39px;height:39px;display:grid;place-items:center;border-radius:12px;font-size:11px;font-weight:900;flex:none}.lesson-index.done{background:#dcf5ec;color:#0c9379}.lesson-row-main{min-width:0;flex:1}.lesson-row-title{font-size:13px;font-weight:800;line-height:1.4;color:#28434e}.lesson-row-description{margin-top:5px;color:#9baaad;font-size:11px;line-height:1.45}.lesson-row-arrow{color:#9aafb5}.info-panel{background:#ebf7f3;border-radius:15px;padding:17px;color:#28695d}.info-panel h3{margin:0 0 8px;font-size:13px}.info-panel p{margin:0;font-size:12px;line-height:1.7;color:#527e77}.sidebar-info{position:sticky;top:109px}.sidebar-info .btn{margin-top:13px}.scenario-box{background:#fff8ef;border:1px solid #f8e4ca;border-radius:15px;padding:18px;margin-top:15px}.scenario-box h3{font-size:13px;margin:0 0 8px;color:#9a6b28}.scenario-box p{margin:0;color:#7e6c51;font-size:12px;line-height:1.7}
.reader-wrap{max-width:850px;margin:0 auto}.reader-header{border-radius:22px;padding:26px 29px;background:linear-gradient(130deg,#0b2936,#174956);color:white;margin-bottom:18px}.reader-title{font-size:clamp(26px,3.3vw,36px);letter-spacing:-1.15px;line-height:1.18;margin:11px 0 15px}.reader-desc{font-size:13px;color:#b6d5d5;line-height:1.65;margin:0}.reader-card{background:white;border:1px solid var(--border);border-radius:21px;padding:clamp(24px,4vw,46px);box-shadow:var(--shadow)}.reader-card p{font-size:15px;line-height:1.97;color:#344c57;margin:0 0 22px}.reader-card p:last-child{margin-bottom:0}.reader-section-heading{font-size:11px;text-transform:uppercase;color:#319887;letter-spacing:2px;font-weight:850;margin:0 0 20px}.reader-divider{margin:29px 0;border:0;border-top:1px solid var(--border)}.reader-actions{margin-top:19px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.concepts{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.concept-btn{border:1px solid #d1ece5;border-radius:100px;padding:8px 11px;background:#eefaf6;color:#2f8375;font-size:11px;font-weight:700}.concept-btn:hover{background:#d7f4e9}
.practice-modes{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.mode-card{border:1px solid var(--border);background:#fff;text-align:left;border-radius:19px;padding:23px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:flex-start;gap:14px;min-height:204px}.mode-card:hover{border-color:#80cdbc;transform:translateY(-2px)}.mode-icon{width:48px;height:48px;background:#e7f6f0;color:#188c79;border-radius:14px;display:grid;place-items:center}.mode-icon.orange{background:#fff2df;color:#be883b}.mode-icon.blue{background:#e9f2fa;color:#4c83a4}.mode-card h3{font-size:16px;letter-spacing:-.5px;margin:0 0 5px}.mode-card p{margin:0;font-size:12px;color:#8598a0;line-height:1.6}.mode-count{font-size:10px;color:#409580;font-weight:900;letter-spacing:1px;margin-top:auto}
.quiz-shell{max-width:760px;margin:0 auto}.quiz-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}.quiz-progress-track{height:7px;background:#e0e9e9;border-radius:20px;overflow:hidden;margin:0 0 26px}.quiz-progress-track span{display:block;height:100%;background:#54c5af;transition:width .3s}.quiz-card{border:1px solid var(--border);background:white;border-radius:24px;box-shadow:var(--shadow);padding:clamp(20px,4vw,37px)}.quiz-number{font-size:11px;color:#16a08b;letter-spacing:1.7px;font-weight:850}.quiz-card h2{font-size:clamp(21px,3vw,29px);line-height:1.32;letter-spacing:-.8px;margin:15px 0 25px}.option{display:flex;width:100%;min-height:59px;align-items:center;gap:12px;padding:14px 15px;margin-bottom:11px;border:1.5px solid #e3eded;border-radius:13px;background:#fff;text-align:left;color:#35505c;font-size:13px;font-weight:650;line-height:1.5}.option:hover{background:#f4faf8;border-color:#c5e4dd}.option.selected{background:#eefaf6;border-color:#40b89d;color:#106b5d}.option.correct{background:#e5f8ef;border-color:#28ae82;color:#116e50}.option.wrong{background:#fff1f0;border-color:#e58a7d;color:#a3463d}.option-key{background:#f2f6f5;color:#76919a;border-radius:9px;width:29px;height:29px;display:grid;place-items:center;font-size:11px;font-weight:900;flex-shrink:0}.option.selected .option-key{background:#cbede4;color:#157e6b}.option.correct .option-key{background:#25a879;color:#fff}.option.wrong .option-key{background:#d86b60;color:#fff}.explain{background:#edf9f4;border:1px solid #c8ebdd;border-radius:15px;padding:18px;margin-top:20px}.explain.error{background:#fff6f2;border-color:#f1d9cf}.explain h3{margin:0 0 7px;display:flex;align-items:center;gap:7px;font-size:14px}.explain p{margin:0;color:#5e796f;font-size:13px;line-height:1.73}.explain.error p{color:#8a6d62}.quiz-bottom{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:25px}.result-ring{width:138px;height:138px}.result-center{font-size:34px;font-weight:900;letter-spacing:-1px}.result-card{padding:30px;background:white;border:1px solid var(--border);border-radius:20px;text-align:center}.result-card h2{font-size:25px;letter-spacing:-.8px;margin:12px 0 7px}.result-card p{font-size:13px;color:#81949d}.review-list{margin-top:20px;text-align:left;display:grid;gap:10px}.review-item{border:1px solid var(--border);border-radius:14px;padding:16px;background:white}.review-item.good{border-left:4px solid #3eb497}.review-item.bad{border-left:4px solid #df8174}.review-item h4{margin:0 0 9px;font-size:13px}.review-item p{font-size:12px;color:#68818a;line-height:1.7;margin:4px 0}.review-item strong{color:#2a5f5b}
.written-row,.scenario-row{background:#fff;border:1px solid var(--border);border-radius:18px;padding:22px;margin-bottom:12px;box-shadow:var(--shadow)}.written-row h3{font-size:15px;line-height:1.5;margin:7px 0 13px;letter-spacing:-.25px}.response-area{width:100%;resize:vertical;min-height:115px;border-radius:13px;border:1px solid #dce8e8;padding:14px;line-height:1.6;font-size:13px;outline:none;background:#fbfdfd;color:var(--text)}.response-area:focus{border-color:#60c8b5;background:#fff}.model-answer{background:#effaf6;color:#4d7068;padding:17px;border-radius:13px;border:1px solid #d6efe5;font-size:13px;line-height:1.7;margin-top:13px}.model-answer strong{display:block;color:#177e70;margin-bottom:5px}.scenario-quote{border-left:3px solid #eeb56e;padding:12px 15px;background:#fff8ec;border-radius:0 10px 10px 0;color:#735c3c;line-height:1.7;font-size:13px}
.library-tabs{display:flex;gap:10px;overflow:auto;margin:24px 0 20px;scrollbar-width:none}.library-tab{padding:12px 16px;border-radius:12px;border:1px solid var(--border);background:#fff;font-size:12px;font-weight:800;color:#7e949c;white-space:nowrap}.library-tab.active{background:var(--navy);border-color:var(--navy);color:#fff}.inline-search{width:100%;padding:15px 18px 15px 48px;border:1px solid var(--border);border-radius:14px;background:#fff;color:var(--text);outline:none;min-height:51px;font-size:13px}.search-shell{position:relative}.search-shell>.icon{position:absolute;left:17px;top:16px;color:#709098;pointer-events:none}.glossary-list{display:grid;grid-template-columns:repeat(2,1fr);gap:11px;margin-top:16px}.term-card{background:#fff;border:1px solid var(--border);border-radius:15px;padding:18px;min-width:0}.term-card h3{font-size:14px;color:#176f68;margin:0 0 7px}.term-card p{font-size:12px;line-height:1.65;color:#6c858d;margin:0}.check-item{background:#fff;border:1px solid var(--border);border-radius:13px;padding:15px;display:flex;align-items:flex-start;gap:12px;margin-bottom:9px;cursor:pointer}.check-item input{appearance:none;flex:none;width:22px;height:22px;border:1.6px solid #aec5c4;border-radius:7px;background:white;margin:0;cursor:pointer;display:grid;place-items:center}.check-item input:checked{background:#36af94;border-color:#36af94}.check-item input:checked:before{content:'✓';color:#fff;font-size:14px;font-weight:900}.check-text{font-size:12px;line-height:1.6;color:#53717b}.check-text b{display:block;color:#263f48;font-size:13px;margin-bottom:2px}.check-item:has(input:checked) .check-text{color:#7d9699}.check-item:has(input:checked) .check-text b{text-decoration:line-through}
.progress-layout{display:grid;grid-template-columns:280px 1fr;gap:20px}.progress-summary{background:var(--navy);color:#fff;border-radius:20px;padding:27px;display:flex;flex-direction:column;align-items:center;text-align:center}.progress-summary h3{font-size:20px;letter-spacing:-.4px;margin:9px 0 4px}.progress-summary p{font-size:12px;color:#afc9ce;line-height:1.65;margin:0}.ring-wrap{position:relative;display:grid;place-items:center;margin:12px 0}.ring-center{position:absolute;display:flex;flex-direction:column;gap:4px;align-items:center}.ring-center strong{font-size:28px;letter-spacing:-1.1px}.ring-center small{font-size:9px;color:#a9c7cd;letter-spacing:1px}.chapter-bars{display:grid;gap:13px}.bar-row{display:grid;grid-template-columns:25px 1fr 38px;align-items:center;gap:10px;font-size:11px}.bar-row strong{color:#197f6e}.bar-row .mini-progress{height:8px}.bar-row span:last-child{text-align:right;color:#81989d}.progress-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:17px}.progress-small{background:#f5faf8;border-radius:13px;padding:17px}.progress-small strong{display:block;font-size:22px;letter-spacing:-.7px}.progress-small span{font-size:11px;color:#789096}
.setting-card{padding:22px;border:1px solid var(--border);border-radius:18px;background:white;margin-bottom:15px;box-shadow:var(--shadow)}.setting-row{display:flex;justify-content:space-between;align-items:center;gap:15px}.setting-row h3{font-size:15px;margin:0 0 5px}.setting-row p{font-size:12px;color:#8899a0;line-height:1.6;margin:0}.setting-buttons{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.badge{display:inline-flex;align-items:center;gap:5px;background:#e8f7f2;color:#287c6d;border-radius:100px;padding:7px 10px;font-size:10px;font-weight:850;letter-spacing:.3px}.badge.muted{background:#edf2f3;color:#63808b}.badge.gold{background:#fff2de;color:#ac7934}.alert-note{border:1px solid #eadfc9;background:#fff9ef;padding:16px;border-radius:14px;font-size:12px;line-height:1.75;color:#79664a}.empty-state{border:1px dashed #cfe0e1;background:#fcfdfd;border-radius:17px;padding:33px;text-align:center;color:#859b9e;font-size:13px}.empty-state .icon{width:37px;height:37px;color:#89b4ae;margin:0 auto 11px}.empty-state h3{color:#405b64;font-size:15px;margin:0 0 7px}.empty-state p{max-width:390px;margin:0 auto 15px;line-height:1.7}.divider{height:1px;background:var(--border);margin:21px 0}
#overlay-root:empty{display:none}.overlay{position:fixed;inset:0;background:rgba(5,23,33,.72);z-index:100;display:flex;justify-content:center;align-items:flex-start;padding:8vh 16px 18px;backdrop-filter:blur(5px)}.search-dialog{width:min(700px,100%);max-height:78vh;overflow:hidden;background:#f7fbfa;border:1px solid #d7e6e3;border-radius:21px;box-shadow:0 25px 80px rgba(0,0,0,.35);display:flex;flex-direction:column}.search-dialog-head{padding:19px;display:flex;align-items:center;gap:11px;border-bottom:1px solid var(--border);background:#fff}.search-dialog-head .icon{color:#4c9f92}.search-dialog-head input{flex:1;outline:none;border:0;font-size:15px;min-width:0;color:var(--text)}.search-dialog-head button{background:none;border:0;color:#89a2a5;width:28px;height:30px}.search-results{padding:18px;overflow:auto;overscroll-behavior:contain}.search-group{font-size:10px;letter-spacing:1.5px;color:#89a0a3;font-weight:850;margin:11px 2px}.search-result{display:flex;gap:12px;align-items:center;padding:14px;border:1px solid transparent;background:white;border-radius:12px;margin-bottom:7px;width:100%;text-align:left}.search-result:hover{border-color:#a9ded2}.search-result .res-ic{background:#eaf6f2;color:#228b79;width:37px;height:37px;display:grid;place-items:center;border-radius:10px}.search-result .res-title{font-weight:780;font-size:13px;line-height:1.45}.search-result .res-sub{color:#83979b;font-size:11px;margin-top:4px}.search-result mark{background:#e0faad;border-radius:2px;color:inherit}.toast{position:fixed;z-index:120;left:50%;bottom:85px;transform:translate(-50%,120px);opacity:0;pointer-events:none;transition:transform .3s,opacity .3s;background:#0b2e38;color:#fff;border:1px solid #23565e;box-shadow:0 12px 36px rgba(0,0,0,.18);padding:13px 20px;border-radius:12px;font-size:12px;font-weight:700;max-width:calc(100% - 50px);text-align:center}.toast.show{transform:translate(-50%,0);opacity:1}
body.theme-dark{--bg:#0b1d27;--white:#102a38;--text:#d5e8e8;--muted:#91aab1;--border:#24404a;--shadow:none;color-scheme:dark}body.theme-dark .topbar{background:rgba(12,30,40,.94)}body.theme-dark .stat,body.theme-dark .feature-card,body.theme-dark .chapter-card,body.theme-dark .content-pane,body.theme-dark .reader-card,body.theme-dark .mode-card,body.theme-dark .quiz-card,body.theme-dark .result-card,body.theme-dark .review-item,body.theme-dark .written-row,body.theme-dark .scenario-row,body.theme-dark .term-card,body.theme-dark .check-item,body.theme-dark .setting-card,body.theme-dark .search-prompt,body.theme-dark .top-icon,body.theme-dark .circle-btn,body.theme-dark .filter-btn,body.theme-dark .library-tab,body.theme-dark .lesson-row{background:#102a38;color:#d5e8e8}body.theme-dark .reader-card p,body.theme-dark .content-pane p,body.theme-dark .chapter-row p,body.theme-dark .lesson-row-title,body.theme-dark .written-row h3,body.theme-dark .term-card p,body.theme-dark .check-text b{color:#c7dddd}body.theme-dark .stat-icon,body.theme-dark .lesson-index{background:#244f51}body.theme-dark .response-area,body.theme-dark .inline-search{background:#09212c;color:white}body.theme-dark .library-tab.active,body.theme-dark .filter-btn.active{background:#55cbb5;color:#082531}body.theme-dark .mini-progress{background:#254652}body.theme-dark .search-dialog{background:#102a38}body.theme-dark .search-dialog-head,body.theme-dark .search-result{background:#173845}body.theme-dark .search-dialog-head input{background:none;color:white}body.theme-dark .option{background:#153444;color:#d5e8e8;border-color:#2e5360}body.theme-dark .option.selected{background:#225748;border-color:#47a893}body.theme-dark .reader-header{background:linear-gradient(130deg,#124252,#0c2c3a)}
@media(max-width:1150px){.sidebar{width:214px}.workspace{margin-left:214px;width:calc(100% - 214px)}.hero{padding:26px}.hero-art{height:232px}.progress-layout{grid-template-columns:240px 1fr}.sidebar-section-label{margin-top:40px}}
@media(max-width:940px){.sidebar{display:none}.workspace{margin-left:0;width:100%}.topbar{height:74px}.page-footer{margin-bottom:75px}.bottom-nav{display:flex;position:fixed;z-index:50;bottom:0;left:0;right:0;height:calc(68px + env(safe-area-inset-bottom));padding:6px 8px env(safe-area-inset-bottom);background:rgba(255,255,255,.97);border-top:1px solid #e1eaea;backdrop-filter:blur(14px);justify-content:space-around;box-shadow:0 -5px 20px rgba(3,34,42,.05)}.bottom-link{background:transparent;border:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:#879ba2;font-size:10px;font-weight:800;flex:1;border-radius:10px;max-width:100px;min-height:52px}.bottom-link .icon{width:21px;height:21px}.bottom-link.active{color:#0b9780;background:#e8f8f2}body.theme-dark .bottom-nav{background:#102834;border-color:#2d4c55}main#view{padding-bottom:50px}.content-two{grid-template-columns:1.45fr .8fr}}
@media(max-width:650px){main#view{padding:23px 17px 38px}.topbar{padding:0 18px}.topbar .top-title{font-size:17px}.top-actions{gap:7px}.top-actions .top-icon:nth-child(2){display:none}.top-icon,.profile-dot{height:38px;width:38px;border-radius:11px}.hero{grid-template-columns:1fr;min-height:370px;padding:28px 25px 0;display:block}.hero h1{max-width:310px;font-size:35px;margin-bottom:10px}.hero p{max-width:290px;font-size:12px;line-height:1.62;margin-bottom:17px}.hero-label{margin-bottom:13px}.hero-art{height:176px;position:absolute;right:-25px;bottom:-29px;width:82%;opacity:.9}.hero-content{z-index:3}.hero-btns{max-width:270px}.hero-btns .btn{padding:11px 14px;font-size:12px;min-height:43px}.hero .btn-outline-light{display:none}.summary-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.stat{padding:14px 11px;display:block;text-align:center;border-radius:15px}.stat-icon{width:33px;height:33px;border-radius:11px;margin:0 auto 8px}.stat-icon .icon{width:17px;height:17px}.stat-value{font-size:20px}.stat-label{font-size:9px;line-height:1.25}.section-head{margin:30px 0 15px}.section-head h2{font-size:21px}.quick-grid,.chapter-grid,.practice-modes,.glossary-list,.content-two,.progress-layout{grid-template-columns:1fr}.feature-card{padding:20px}.feature-card h3{font-size:18px}.chapter-card{padding:17px;gap:12px}.chapter-card-title{min-height:0}.chapter-grid{gap:11px}.chapter-card-sub{display:none}.hero-secondary{padding:26px 23px}.hero-secondary h1{font-size:27px}.hero-secondary .secondary-symbol{display:none}.content-pane{padding:19px}.sidebar-info{position:static}.reader-card{padding:24px 22px}.reader-card p{font-size:14px;line-height:1.9}.reader-header{padding:25px 22px}.reader-title{font-size:28px}.mode-card{min-height:140px;padding:19px;display:grid;grid-template-columns:50px 1fr;gap:10px 14px}.mode-icon{grid-row:span 2}.mode-count{grid-column:2;grid-row:2;margin-top:0}.mode-card h3{font-size:15px}.mode-card p{font-size:11px}.quiz-card{padding:22px 17px}.quiz-card h2{font-size:22px}.option{padding:12px 10px}.option-key{width:28px;height:28px}.quiz-bottom{flex-wrap:wrap}.quiz-bottom .btn{flex:1}.result-card{padding:25px 18px}.glossary-list{gap:9px}.setting-row{align-items:flex-start}.screen-title{font-size:30px}.search-dialog{max-height:88vh;border-radius:19px}.overlay{padding-top:5vh}.search-dialog-head{padding:14px}.search-results{padding:12px}.page-footer{font-size:8px;padding-bottom:14px}}
@media(max-width:380px){.hero h1{font-size:31px}.hero{min-height:356px}.top-title{max-width:175px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.stat-value{font-size:18px}.stat-label{font-size:8.5px}.section-head h2{font-size:19px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important;transition:none!important}}
/* DECKWISE 1.3 / Maritime First Aid learning experience */
.firstaid-feature{margin:23px 0 6px;border-radius:21px;overflow:hidden;background:linear-gradient(120deg,#103548,#13635f 65%,#148679);color:#fff;box-shadow:0 15px 34px rgba(4,72,80,.13);position:relative}
.firstaid-feature:after{content:'';width:210px;height:210px;border:1px solid rgba(185,242,220,.22);border-radius:50%;position:absolute;right:-55px;top:-100px;pointer-events:none}
.firstaid-spot{display:flex;gap:20px;align-items:flex-start;padding:24px 26px;position:relative;z-index:1}
.firstaid-mark{flex:none;width:56px;height:56px;border-radius:17px;background:rgba(208,255,231,.14);color:#99f3d5;display:grid;place-items:center;border:1px solid rgba(181,248,219,.22)}
.firstaid-mark .icon{width:33px;height:33px;stroke-width:1.6}
.firstaid-eyebrow{font-size:10px;font-weight:850;letter-spacing:1.7px;color:#9df4db}
.firstaid-feature h2{font-weight:850;letter-spacing:-.7px;font-size:21px;margin:6px 0 7px;line-height:1.25}
.firstaid-feature p{font-size:12px;line-height:1.7;color:#c4e5e2;max-width:620px;margin:0 0 14px}
.firstaid-actions{display:flex;gap:9px;flex-wrap:wrap}
.firstaid-exam-strip{border:1px solid #c3e6d9;background:#eaf9f3;border-radius:16px;padding:17px 19px;display:flex;align-items:center;justify-content:space-between;gap:15px;margin:8px 0 22px;color:#145c57}
.firstaid-exam-strip>div{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.firstaid-exam-strip strong{font-size:14px}
.firstaid-exam-strip span{font-size:11px;color:#537a75}
.medical-notice{border-radius:13px;background:#eaf8f2;color:#32675a;padding:14px;font-size:12px;line-height:1.7}
.chip.medical{background:#ddf7ec;color:#127c63}
.firstaid-reading{font-size:14px;line-height:1.85;color:#314c57;overflow-wrap:anywhere}
.firstaid-reading h2{font-size:19px;line-height:1.35;margin:28px 0 10px;font-weight:800;color:#0c695f;letter-spacing:-.5px}
.firstaid-reading h2:first-child{margin-top:2px}
.firstaid-reading p{margin:0 0 14px;line-height:1.85!important;color:#395a65}
.firstaid-reading strong{color:#143e49;font-weight:800}
.firstaid-reading ul,.firstaid-reading ol{margin:8px 0 21px;padding-left:25px;color:#395a65}
.firstaid-reading li{padding-left:3px;margin-bottom:9px;line-height:1.75}
.firstaid-reading li::marker{color:#13a08b;font-weight:800}
.firstaid-reading code{background:#e6f4ef;border-radius:4px;padding:2px 4px;font-size:.9em}
.firstaid-reading hr{border:0;border-top:1px solid #d8e9e5;margin:23px 0}
body.theme-dark .firstaid-exam-strip,body.theme-dark .medical-notice{background:#153e3c;border-color:#26695f;color:#afe7d8}
body.theme-dark .firstaid-exam-strip span{color:#9fc9c1}
body.theme-dark .firstaid-reading,body.theme-dark .firstaid-reading h2{color:#a9e4d5}
body.theme-dark .firstaid-reading p,body.theme-dark .firstaid-reading li{color:#cbdddd}
body.theme-dark .firstaid-reading strong{color:#e5f7ef}
@media(max-width:650px){.firstaid-spot{padding:18px;gap:12px}.firstaid-mark{width:43px;height:43px;border-radius:13px}.firstaid-mark .icon{width:25px;height:25px}.firstaid-feature h2{font-size:17px}.firstaid-feature p{font-size:11px}.firstaid-actions .btn{font-size:10.5px;min-height:36px;padding:8px 10px}.firstaid-exam-strip{align-items:stretch;flex-direction:column}.firstaid-exam-strip .btn{width:100%}.firstaid-reading h2{font-size:17px}}
/* Keep settings reachable on narrow Android screens. */
@media(max-width:650px){.top-actions .top-icon:nth-child(2){display:grid}}

/* DECKWISE Academy+ 1.4: First Aid at Work learning experience */
.faw-feature{margin:23px 0 15px;border-radius:22px;overflow:hidden;background:linear-gradient(120deg,#092e3d 0%,#16535b 55%,#258775 100%);color:#fff;box-shadow:0 15px 34px rgba(4,72,80,.17);position:relative;padding:22px 25px}
.faw-feature:before{content:'';width:260px;height:260px;border-radius:100%;position:absolute;right:-110px;top:-140px;border:1px solid rgba(179,247,222,.32);pointer-events:none}
.faw-topline{display:flex;gap:12px;justify-content:space-between;align-items:center;color:#bcf6df;font-size:10px;font-weight:800;letter-spacing:1.1px}
.faw-topline span{display:flex;align-items:center;gap:5px}
.faw-hero-copy{display:flex;gap:17px;margin-top:18px;position:relative}
.faw-hero-icon{flex:none;width:55px;height:55px;display:grid;place-items:center;background:rgba(210,255,234,.14);border:1px solid rgba(220,255,234,.23);border-radius:15px;color:#b7f7da}
.faw-hero-icon .icon{width:30px;height:30px}
.faw-feature h2{font-weight:850;font-size:23px;margin:0 0 7px;letter-spacing:-.7px}
.faw-feature p{font-size:12.5px;line-height:1.7;color:#d5eee9;max-width:600px;margin:0 0 14px}
.faw-pills{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 17px}.faw-pills span{font-size:10px;padding:6px 9px;border-radius:30px;color:#e0fff2;background:rgba(224,255,243,.1);border:1px solid rgba(224,255,243,.2)}
.faw-hero-actions{display:flex;gap:8px;flex-wrap:wrap}
.faw-day-divider{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:14px 12px 10px;border-bottom:1px solid #d8e9e5;color:#1c675b;background:#eff8f4;border-radius:9px 9px 0 0;margin-top:12px}
.faw-day-divider span{font-size:10px;font-weight:900;letter-spacing:1.2px;color:#268675}.faw-day-divider strong{font-size:13px}
.faw-lesson-chip{font-size:11px;font-weight:850;letter-spacing:.8px;border-radius:7px;background:#def5ea;color:#187764;display:inline-block;padding:8px 10px}
.firstaid-reading details.faw-recall{border:1px solid #bddfd3;border-radius:13px;background:#eff9f4;margin:23px 0;padding:15px 16px}
.firstaid-reading details.faw-recall summary{font-weight:800;color:#155749;cursor:pointer;line-height:1.5}
.firstaid-reading details.faw-recall p{margin:12px 0 0;color:#24574b}
.faw-warning,.faw-example,.faw-avoid{border-radius:12px;padding:15px 16px;margin:16px 0;border-left:4px solid #e09d57;background:#fff7e9;color:#4f5549}
.faw-example{border-left-color:#19a68a;background:#eff9f5}.faw-avoid{border-left-color:#dc765e;background:#fff2ee}
.firstaid-reading .faw-warning strong,.firstaid-reading .faw-example strong,.firstaid-reading .faw-avoid strong{font-size:13px;color:#194d4b}
.firstaid-reading .faw-warning p,.firstaid-reading .faw-example p,.firstaid-reading .faw-avoid p{margin:6px 0 0;font-size:13px;line-height:1.6!important}
.faw-exam-strip{display:flex;align-items:center;justify-content:space-between;gap:15px;border-radius:16px;padding:16px 18px;margin:0 0 12px;background:linear-gradient(105deg,#133c4a,#1b665e);color:white}
.faw-exam-strip>div{display:flex;align-items:center;gap:12px}.faw-exam-strip strong{display:block;font-size:14px}.faw-exam-strip span{display:block;font-size:11px;line-height:1.6;color:#c2e7dc;margin-top:3px}
.faw-exam-symbol{display:grid!important;place-items:center;width:35px;height:35px;border-radius:10px;background:rgba(255,255,255,.12);flex:none}
body.theme-dark .faw-day-divider{background:#1e3e3c;border-color:#2a5450;color:#b9e5d7}
body.theme-dark .faw-warning{background:#4a3c2e;color:#f3e6ce}body.theme-dark .faw-example{background:#1e403a;color:#d4ece3}body.theme-dark .faw-avoid{background:#4a3534;color:#f1d7d2}
body.theme-dark .firstaid-reading details.faw-recall{background:#1d403a;border-color:#2e7764}body.theme-dark .firstaid-reading details.faw-recall summary,body.theme-dark .firstaid-reading details.faw-recall p{color:#c5ede0}
@media(max-width:650px){.faw-feature{padding:18px}.faw-topline{font-size:9px}.faw-topline span:nth-child(2){max-width:110px;text-align:right}.faw-hero-copy{gap:11px}.faw-hero-icon{width:39px;height:39px}.faw-hero-icon .icon{width:23px;height:23px}.faw-feature h2{font-size:19px}.faw-feature p{font-size:11.8px}.faw-exam-strip{flex-direction:column;align-items:stretch}.faw-exam-strip .btn{width:100%;min-height:41px}}