@import url('https://fonts.bunny.net/css?family=dm-sans:400,500,600,700,800|manrope:400,500,600,700,800');
:root{--bg:#f8faf9;--card:#fff;--ink:#203137;--muted:#849393;--line:#e9eeec;--brand:#267c75;--green:#e4f4ef;--yellow:#ffefc2;--red:#db5b4e;--shadow:0 8px 32px rgba(34,77,68,.045);font-family:'DM Sans','Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;color:var(--ink)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);min-width:320px}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #8bd3c7;outline-offset:3px}a{color:inherit;text-decoration:none}.shell{display:flex;min-height:100vh}.sidebar{width:256px;flex:0 0 256px;background:#fff;border-right:1px solid var(--line);padding:31px 17px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;z-index:20}.brand{display:flex;align-items:center;gap:11px;font-size:26px;font-weight:800;line-height:1;letter-spacing:-1.5px;margin:0 10px 56px}.brand-logo{width:43px;height:43px;color:white;background:#287e75;border-radius:15px;display:grid;place-items:center}.brand-logo svg{width:27px}.brand-highlight{color:#2b8a80}.brand small{display:block;margin-top:8px;font-size:8.5px;color:#92a3a0;letter-spacing:1.2px;font-weight:800}.sidebar-cap{margin:0 17px 14px;color:#a4b0ae;font-size:10px;font-weight:800;letter-spacing:1.55px}.second-cap{margin-top:29px}nav{display:grid;gap:5px}.nav-item{position:relative;border:0;background:transparent;color:#7d908d;text-align:left;border-radius:12px;display:flex;align-items:center;gap:13px;width:100%;padding:13px 16px;font-size:13px;font-weight:700;transition:background .2s,color .2s,transform .2s}.nav-item:hover{background:#f1f7f5;color:var(--brand)}.nav-item.active{background:#e8f5f1;color:#24796f}.nav-icon{width:21px;text-align:center;font-size:22px;line-height:1;font-weight:400}.nav-counter{margin-left:auto;border-radius:50%;min-width:21px;text-align:center;background:#ffe4e1;color:#d76458;padding:3px;font-size:11px}.sidebar-bottom{margin-top:auto}.sidebar-tip{border-radius:16px;padding:18px;background:#ecf8f4;color:#477b70;font-size:12px;line-height:1.7}.sidebar-tip span{font-size:12px;font-weight:800;color:#237a6c}.sidebar-tip p{margin:8px 0 0}.version{font-size:11px;color:#aab7b3;text-align:center;margin:23px 0 0}.version span{margin:0 7px}.main{width:calc(100% - 256px);min-width:0;display:flex;flex-direction:column}.topbar{height:80px;background:rgba(255,255,255,.82);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(24px,3.5vw,64px);gap:12px;z-index:5}.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px}.breadcrumb{font-size:10px;letter-spacing:1.5px;font-weight:800;color:#9faeac}.breadcrumb span{margin:0 11px;color:#cfdbd8}.breadcrumb strong{color:#566b69}.live-dot{width:7px;height:7px;background:#59bc93;border-radius:50%;box-shadow:0 0 0 4px #e7f5ec}.current-status{font-size:11px;color:#90a19d;font-weight:600}.avatar{background:#f4e8d1;border:none;width:36px;height:36px;border-radius:13px;color:#9d7941;font-weight:800;font-size:12px;margin-left:9px}.menu-toggle{display:none}.page{padding:41px clamp(24px,3.5vw,64px) 70px;max-width:1530px;width:100%;margin:0 auto;flex:1;animation:in .25s ease both}@keyframes in{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}.eyebrow{color:var(--brand);font-weight:800;letter-spacing:2.3px;font-size:10px;text-transform:uppercase}.page-title{font-size:30px;letter-spacing:-1.4px;margin:10px 0 10px;font-weight:800;line-height:1.2}.subtitle{font-size:13px;line-height:1.9;color:var(--muted);margin:0 0 30px}.hero{min-height:275px;background:#d9eee8;border-radius:23px;position:relative;overflow:hidden;padding:35px 36px;display:grid;grid-template-columns:1.2fr .8fr;align-items:center}.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 90% 10%,rgba(255,255,255,.7),transparent 46%)}.hero-text{z-index:1;position:relative}.hero-tag{display:inline-flex;background:rgba(255,255,255,.75);color:#397b71;border:1px solid #fff;padding:8px 13px;border-radius:100px;font-size:10px;font-weight:800;letter-spacing:1.2px}.hero h1{font-size:clamp(29px,3.2vw,47px);letter-spacing:-2px;line-height:1.12;margin:22px 0 10px;color:#204e46;font-weight:800}.hero h1 em{font-style:normal;color:#4fa193}.hero p{color:#628d83;font-size:13px;max-width:390px;line-height:1.8;margin:0 0 23px}.hero-art{z-index:1;display:grid;place-items:center;position:relative;min-height:200px}.hero-art .circle-one{position:absolute;border:1px solid #a6d5c8;width:285px;height:285px;border-radius:50%}.hero-art .circle-two{position:absolute;border:1px solid #c4e2d9;width:208px;height:208px;border-radius:50%}.road-illustration{width:min(235px,90%);filter:drop-shadow(0 20px 22px rgba(33,96,88,.13));transform:rotate(-8deg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:11px;border:1px solid transparent;padding:12px 18px;background:var(--brand);color:white;font-weight:800;font-size:12px;transition:transform .2s,box-shadow .2s,background .2s;min-height:43px}.btn:hover{transform:translateY(-1px);box-shadow:0 8px 18px #267c7524}.btn-soft{background:#f0f7f4;color:var(--brand);border-color:#deece7}.btn-outline{background:white;border-color:#e4ece9;color:#5b7671}.btn-white{background:white;color:var(--brand)}.btn-danger{background:#faeeec;color:#ba5145}.btn[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none}.mini-btn{min-height:35px;padding:9px 12px}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:21px 0 33px}.stat-card{background:#fff;padding:22px 19px;border:1px solid #f1f3f2;border-radius:18px;box-shadow:var(--shadow)}.stat-icon{display:grid;place-items:center;width:33px;height:33px;border-radius:11px;background:#e9f4ef;color:#2c8977;margin-bottom:15px;font-size:18px}.stat-card:nth-child(2) .stat-icon{background:#fff4d9;color:#c79322}.stat-card:nth-child(3) .stat-icon{background:#f0e9fb;color:#9f6fc1}.stat-card:nth-child(4) .stat-icon{background:#fcebe8;color:#db7c6e}.stat-value{font-size:26px;letter-spacing:-1px;font-weight:800;line-height:1}.stat-label{color:#a0aeaa;font-size:11px;margin-top:8px;font-weight:700}.section-line{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:29px 0 16px}.section-title{margin:0;font-size:18px;letter-spacing:-.45px;font-weight:800}.section-caption{font-size:11px;color:#9baba6;font-weight:600}.link-btn{border:none;background:transparent;color:var(--brand);font-size:11px;font-weight:800}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.feature-card{min-height:182px;background:#fff;border:1px solid var(--line);border-radius:19px;text-align:left;display:flex;flex-direction:column;padding:19px;position:relative;transition:transform .2s,box-shadow .2s}.feature-card:hover,.category-card:hover,.sign-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px #1a4f3d12}.feature-icon{height:42px;width:42px;background:#eaf6ee;color:#27977e;border-radius:13px;display:grid;place-items:center;font-size:23px;margin-bottom:18px}.feature-card:nth-child(2) .feature-icon{background:#fef2df;color:#e4a745}.feature-card:nth-child(3) .feature-icon{background:#f0e9ff;color:#a18cc4}.feature-name{font-size:14px;font-weight:800;margin-bottom:5px}.feature-desc{font-size:11px;color:#98a8a4;line-height:1.75}.feature-arrow{position:absolute;right:20px;top:20px;color:#8db9ac}.progress-card{background:#fff;border:1px solid var(--line);border-radius:19px;padding:22px;display:flex;align-items:center;justify-content:space-between;gap:16px}.progress-info h3{margin:0 0 7px;font-size:13px}.progress-info p{margin:0;color:#90a49d;font-size:11px;line-height:1.6}.progress-track{height:7px;border-radius:12px;background:#eaf1ef;overflow:hidden;margin-top:14px;width:min(320px,100%)}.progress-fill{height:100%;width:0;background:#3d9b86;border-radius:12px;transition:width .3s}.progress-big{font-size:24px;font-weight:800;color:var(--brand)}.filter-bar{display:flex;gap:9px;flex-wrap:wrap;margin:23px 0 19px}.pill{background:#fff;border:1px solid var(--line);padding:10px 15px;border-radius:999px;color:#82918d;font-size:11px;font-weight:800}.pill.active{background:#e2f3ee;border-color:#c8e9de;color:var(--brand)}.search{border:1px solid var(--line);background:white;border-radius:12px;padding:0 15px;display:flex;align-items:center;gap:12px;max-width:100%;min-height:44px}.search input{border:0;outline:0;width:100%;color:var(--ink);background:transparent;font-size:12px}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:20px 0}.toolbar-actions{display:flex;gap:8px;flex-wrap:wrap}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 284px;gap:18px;align-items:start}.question-card{background:#fff;border-radius:20px;border:1px solid var(--line);padding:27px;min-width:0}.q-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:#9caaa7;font-size:11px;font-weight:800}.q-tag{border-radius:30px;background:#eef6f4;color:#357f74;padding:7px 11px;font-size:10px}.q-tag.fatal{background:#fff0ec;color:#d55b4d}.q-title{font-weight:800;font-size:clamp(17px,2vw,22px);line-height:1.55;letter-spacing:-.4px;margin:21px 0 23px;overflow-wrap:anywhere}.option{width:100%;text-align:left;border:1.5px solid #e8efec;border-radius:13px;background:white;padding:13px 16px;margin:0 0 10px;display:flex;align-items:flex-start;gap:13px;color:#516660;line-height:1.65;font-size:13px;transition:background .15s,border .15s;min-height:53px}.option:hover{background:#f5faf8;border-color:#c2e0d6}.option.selected{border-color:#439f8f;background:#ecf7f2}.option.correct{border-color:#56b88d;background:#ecf9f1;color:#20794d}.option.wrong{border-color:#e8988d;background:#fff0ef;color:#aa493f}.opt-letter{width:27px;height:27px;min-width:27px;border-radius:9px;background:#eff5f1;color:#608178;display:grid;place-items:center;font-weight:800;font-size:11px;margin-top:1px}.option.selected .opt-letter{background:#317e74;color:white}.option.correct .opt-letter{background:#46a874;color:#fff}.option.wrong .opt-letter{background:#e87b70;color:#fff}.note-box{background:#f0f8f4;border-radius:13px;padding:17px;color:#488074;font-size:12px;line-height:1.8;margin-top:16px}.note-box strong{display:block;margin-bottom:6px;color:#216f60}.note-box.bad{background:#fff3f1;color:#ad685d}.note-box.bad strong{color:#b95246}.question-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:24px;padding-top:19px;border-top:1px solid var(--line);flex-wrap:wrap}.q-side{border:1px solid var(--line);background:#fff;border-radius:19px;padding:20px;position:sticky;top:100px}.q-side h3{font-size:13px;margin:0 0 17px}.number-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px}.num{border:1px solid #e6eeeb;border-radius:8px;background:#f9fbfa;aspect-ratio:1;display:grid;place-items:center;font-size:11px;font-weight:800;color:#849690;padding:0}.num.active{background:#2c8176;border-color:#2c8176;color:#fff}.num.done{background:#dcf4e9;border-color:#bbe9d6;color:#277e62}.num.invalid{background:#ffe1db;border-color:#f4b5a7;color:#a94e45}.num.is-fatal{box-shadow:inset 0 0 0 2px #f2aa9f}.side-legend{font-size:10px;color:#a0aba7;display:flex;gap:13px;flex-wrap:wrap;margin-top:17px}.side-legend i{display:inline-block;border:1px solid #e0e9e4;width:10px;height:10px;border-radius:3px;margin-right:5px}.side-legend .done{background:#dcf4e9}.side-legend .fatal{background:#ffe1db}.image-frame{border:1px solid #e9efeb;border-radius:16px;min-height:168px;background:#f9fbfa;display:grid;place-items:center;padding:15px;margin:0 0 22px;overflow:hidden}.image-frame img{max-width:100%;height:auto;max-height:340px;object-fit:contain;mix-blend-mode:multiply}.image-note{color:#9aaba4;font-size:11px;line-height:1.7;margin:8px 0 0}.error-visual{display:none;min-height:130px;flex-direction:column;align-items:center;justify-content:center;color:#acb8b5;font-size:12px;text-align:center;gap:12px}.error-visual strong{font-size:30px;color:#b9cfca}.image-frame.image-error img{display:none}.image-frame.image-error .error-visual{display:flex}.exam-headline{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.timer{font-size:21px;font-weight:800;letter-spacing:1px;color:#327e75;background:#ecf6f2;border-radius:14px;padding:11px 16px;font-variant-numeric:tabular-nums}.timer.urgent{color:#ce5449;background:#fff0ed}.exam-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}.exam-summary>div{background:white;border:1px solid #e9efec;border-radius:14px;padding:16px}.exam-summary strong{display:block;font-size:22px;color:#307e75;margin-bottom:5px}.exam-summary span{font-size:11px;color:#9aaba5}.exam-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.modal-shade{position:fixed;inset:0;background:#17332b5c;z-index:100;display:grid;place-items:center;padding:20px}.modal{background:#fff;border-radius:24px;padding:30px;max-width:470px;width:100%;box-shadow:0 28px 85px #18372a40}.modal h2{margin:0 0 10px;font-size:24px}.modal p{font-size:13px;line-height:1.8;color:#78908a}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:25px}.result-score{font-size:60px;letter-spacing:-4px;font-weight:800;margin:16px 0 4px}.result-score.pass{color:#25916e}.result-score.fail{color:#de6557}.result-details{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.result-details>div{background:#f7faf8;border-radius:13px;padding:13px;text-align:center}.result-details strong{font-size:20px;display:block}.result-details span{font-size:10px;color:#99a8a4}.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.category-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:20px;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:110px;transition:box-shadow .2s,transform .2s}.category-card .category-emoji{width:43px;height:43px;background:#e9f5ef;border-radius:13px;display:grid;place-items:center;font-size:23px}.category-card b{font-size:13px;display:block;line-height:1.5;margin-bottom:5px}.category-card small{color:#9daea8;font-weight:600;font-size:11px}.sign-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.sign-card{background:#fff;border:1px solid #e8eeeb;border-radius:17px;padding:15px;text-align:left;transition:transform .2s,box-shadow .2s}.sign-card .sign-image{height:135px;border-radius:12px;background:#f8faf8;display:grid;place-items:center;overflow:hidden;margin-bottom:14px}.sign-image img{height:100%;max-width:100%;object-fit:contain;padding:8px}.sign-card b{font-size:12px;line-height:1.5;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.sign-card small{display:block;margin-top:8px;color:#97aaa4;font-size:10px}.info-list{display:grid;gap:11px}.info-item{background:white;border:1px solid var(--line);padding:21px;border-radius:15px;display:flex;gap:15px;align-items:flex-start}.info-item .index{background:#e8f5ee;color:#2b856f;border-radius:10px;width:34px;height:34px;display:grid;place-items:center;font-weight:800;flex-shrink:0}.info-item b{font-size:13px}.info-item p{font-size:12px;color:#849b93;line-height:1.75;margin:7px 0 0}.notice{border-radius:15px;padding:15px 18px;background:#fff6e5;border:1px solid #feebc4;color:#967334;font-size:12px;line-height:1.8;margin-bottom:18px}.empty{background:#fff;border:1px dashed #dce8e3;border-radius:18px;padding:50px 24px;text-align:center;color:#90a7a0;font-size:13px;line-height:1.8}.empty strong{display:block;font-size:16px;color:#466d63;margin:10px 0}.footer{color:#a2b0ac;font-size:10px;line-height:1.7;padding:18px clamp(24px,3.5vw,64px);border-top:1px solid var(--line)}.footer a{color:#538f84}.mobile-nav,.overlay{display:none}.icon-button{background:#fff;border:1px solid var(--line);border-radius:10px;min-width:38px;min-height:38px;color:var(--brand)}.toast-wrap{position:fixed;right:20px;bottom:22px;z-index:250;display:grid;gap:9px}.toast{background:#2c746b;color:white;padding:13px 18px;border-radius:11px;box-shadow:0 9px 24px #1c60543b;font-size:12px;animation:in .2s}.quick-actions{display:flex;flex-wrap:wrap;gap:9px}.study-title-row{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.form-select{border:1px solid var(--line);border-radius:11px;background:white;color:#657a74;padding:10px 12px;font-weight:700;font-size:11px;min-height:44px;max-width:100%}.small-muted{font-size:11px;color:#98aaa4;line-height:1.7}.ready-box{background:#e4f4ed;border-radius:17px;padding:22px;color:#316b5b}.ready-box h3{font-size:18px;margin:0 0 10px}.ready-box p{color:#648e80;font-size:12px;line-height:1.8}.practice-result{max-width:640px;margin:35px auto;text-align:center}.hidden{display:none!important}@media(max-width:1150px){.sidebar{width:224px;flex-basis:224px}.main{width:calc(100% - 224px)}.page,.topbar{padding-left:26px;padding-right:26px}.stats{gap:10px}.stat-card{padding:16px}.study-layout{grid-template-columns:minmax(0,1fr) 235px}.sign-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:820px){.sidebar{position:fixed;left:0;top:0;bottom:0;transform:translateX(-100%);transition:transform .25s;box-shadow:20px 0 70px #244a3a15}.sidebar.open{transform:translateX(0)}.overlay.open{display:block;position:fixed;inset:0;background:#112b2370;z-index:15}.main{width:100%}.menu-toggle{display:inline-grid;place-items:center}.page{padding:26px 19px 100px}.topbar{height:62px;padding:0 19px}.stats{grid-template-columns:repeat(2,minmax(0,1fr));margin:16px 0 26px}.study-layout{grid-template-columns:1fr}.q-side{position:static;order:-1}.number-grid{grid-template-columns:repeat(10,minmax(0,1fr))}.q-side h3{margin-bottom:12px}.hero{min-height:245px;padding:28px}.feature-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.mobile-nav{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid #e8efec;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);padding:7px 6px calc(7px + env(safe-area-inset-bottom))}.mobile-nav button{border:0;background:none;color:#9ba9a5;font-weight:700;font-size:9px;display:flex;align-items:center;flex-direction:column;gap:4px;padding:5px 0}.mobile-nav button span{font-size:21px}.mobile-nav button.active{color:var(--brand)}.footer{padding:18px 19px 100px}.toast-wrap{bottom:83px;right:12px;left:12px}}@media(max-width:560px){.breadcrumb{font-size:9px;letter-spacing:.4px}.breadcrumb>span{margin:0 4px}.current-status,.live-dot{display:none}.topbar-right{gap:2px}.avatar{margin:0}.hero{grid-template-columns:1fr;min-height:320px;padding:24px}.hero-art{min-height:80px;position:absolute;right:-39px;bottom:-60px;opacity:.35;pointer-events:none;width:215px}.hero-art .circle-one{width:210px;height:210px}.hero-art .circle-two{width:140px;height:140px}.road-illustration{width:180px}.hero h1{font-size:33px;margin:20px 0 9px}.hero p{max-width:260px}.hero-text{max-width:90%}.stat-value{font-size:23px}.feature-grid{grid-template-columns:1fr;gap:10px}.feature-card{min-height:100px;display:grid;grid-template-columns:52px 1fr;column-gap:12px;align-content:center;padding:15px}.feature-icon{grid-row:span 2;margin:0}.feature-name{align-self:end}.feature-desc{grid-column:2}.feature-arrow{top:18px}.category-grid{grid-template-columns:1fr}.sign-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.sign-card{padding:10px}.sign-card .sign-image{height:115px}.question-card{padding:18px}.q-title{font-size:17px}.number-grid{grid-template-columns:repeat(8,minmax(0,1fr))}.modal{padding:21px}.modal-actions{flex-wrap:wrap}.modal-actions .btn{flex:1}.exam-summary{gap:7px}.exam-summary>div{padding:12px}.section-title{font-size:17px}.page-title{font-size:27px}.hero-tag{font-size:9px}.study-title-row{flex-direction:column}.question-footer>.quick-actions{width:100%;justify-content:space-between}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}