/* Fullstack English Handbook — standalone static styles, no framework/CDN required. */
:root{--ink:#102c37;--ink-2:#1d3943;--muted:#687b80;--paper:#f6f7f3;--white:#fff;--line:#e3e9e7;--sea:#178c83;--sea-dark:#0c756d;--mint:#e8f5f1;--amber:#f7c77b;--amber-dark:#9e6820;--red:#b74646;--shadow:0 18px 50px rgba(16,44,55,.07);--r:18px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-height, 78px) + 16px)}body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.62;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}strong,b{font-weight:700}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #e9aa52;outline-offset:3px}h1,h2,h3,h4,p{margin:0}h1,h2,h3{line-height:1.19;letter-spacing:-.035em}h1{font-size:clamp(32px,4vw,56px)}h2{font-size:clamp(25px,2.35vw,34px)}h3{font-size:19px}p{line-height:1.72}.muted{color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip-link{position:absolute;top:-60px;left:20px;z-index:100;padding:10px 18px;background:#fff;color:var(--ink);border-radius:8px}.skip-link:focus{top:10px}[hidden]{display:none!important}.container{width:min(var(--max),calc(100% - 56px));margin-inline:auto}
/* Site shell */
.site-header{height:78px;background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}.header-inner{max-width:1360px;width:calc(100% - 64px);height:100%;margin:auto;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}.brand-mark{display:grid;place-items:center;width:41px;height:41px;color:#fff;background:var(--ink);font-size:22px;line-height:1;font-weight:850;letter-spacing:-.08em;border-radius:10px}.brand-mark-dot{color:var(--amber)}.brand-text{font-size:15px;font-weight:850;letter-spacing:-.05em;line-height:1.1}.brand-text span{display:block;color:var(--muted);font-size:9px;font-weight:750;letter-spacing:.12em;margin-top:5px}.top-nav{display:flex;align-items:center;gap:8px;margin-left:auto}.top-nav a{padding:10px 13px;border-radius:9px;font-size:13px;font-weight:650;color:#597078;white-space:nowrap}.top-nav a:hover,.top-nav a.active{background:#eef4f2;color:var(--ink)}.header-progress{display:flex;align-items:center;gap:7px;padding:8px 0 8px 20px;border-left:1px solid var(--line);white-space:nowrap;color:var(--muted);font-size:12px;font-weight:700}.status-dot,.mini-orb{width:8px;height:8px;background:var(--sea);border-radius:50%;display:inline-block;box-shadow:0 0 0 4px #daf1e9}.site-footer{border-top:1px solid var(--line);background:#fff;margin-top:80px}.footer-inner{max-width:var(--max);width:calc(100% - 56px);margin:auto;display:flex;justify-content:space-between;align-items:center;gap:18px;min-height:85px;color:var(--muted);font-size:11px;font-weight:650}.footer-inner a{text-decoration:underline;text-underline-offset:3px}
/* Common UI */
.eyebrow{display:flex;align-items:center;gap:9px;color:var(--sea-dark);font-size:11px;line-height:1.3;letter-spacing:.17em;font-weight:800;margin-bottom:14px}.eyebrow-light{color:#b5e2d8}.eyebrow-line{width:24px;height:1px;background:currentColor}.btn{display:inline-flex;align-items:center;justify-content:center;gap:17px;border-radius:10px;padding:13px 20px;min-height:48px;font-size:13px;font-weight:800;transition:transform .2s,background .2s,border-color .2s;border:1px solid transparent;text-align:center}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--amber);color:#172f34}.btn-primary:hover{background:#ffda9d}.btn-ghost-light{border-color:#547079;color:#f0f9f6;background:transparent}.btn-ghost-light:hover{border-color:#a4dbd0;background:#254b53}.btn-dark{background:var(--ink);color:white}.btn-dark:hover{background:#29545d}.btn-outline{border-color:#cddbd7;background:#fff;color:var(--ink)}.btn-outline:hover{border-color:var(--sea)}.btn-danger{color:var(--red)}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:26px}.section-heading .eyebrow{margin-bottom:10px}
/* Homepage */
.home-hero{background:#102e39;color:white;position:relative;overflow:hidden}.hero-pattern{position:absolute;inset:0;pointer-events:none;opacity:.35;background:radial-gradient(ellipse at 23% -20%,#34796b 0,transparent 42%),radial-gradient(ellipse at 95% 85%,#30626a 0,transparent 39%)}.home-hero:before{content:"";position:absolute;right:calc(50% - 600px);top:-180px;width:600px;height:600px;border:1px solid #ffffff0f;border-radius:50%}.home-hero-layout{min-height:495px;padding:72px 0 66px;display:grid;grid-template-columns:minmax(0,1.8fr) minmax(265px,.8fr);gap:9%;align-items:center;position:relative}.hero-content h1{max-width:720px;font-size:clamp(35px,4.7vw,60px);font-weight:820;line-height:1.095;letter-spacing:-.057em}.hero-content h1 em{color:#a7e0d3;font-style:normal}.hero-content h1 strong{color:var(--amber);font-weight:820}.hero-description{max-width:625px;margin-top:24px;color:#b7cbc9;font-size:15px;line-height:1.85}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.hero-caption{display:flex;align-items:center;gap:12px;color:#9db7b8;font-size:11px;margin-top:30px}.mini-orb{box-shadow:0 0 0 4px #214b47}.hero-side{border:1px solid #44616b;background:#143843;padding:26px 24px 24px;border-radius:16px;box-shadow:0 25px 80px #0002}.hero-side-label{font-size:10px;font-weight:800;letter-spacing:.17em;color:#9cc7c7}.hero-side-big{font-size:75px;line-height:1.2;font-weight:850;letter-spacing:-.09em;margin:12px 0 18px}.hero-side-big span{font-size:15px;font-weight:700;letter-spacing:0;color:var(--amber)}.hero-side-divider{height:1px;background:#41636a;margin-bottom:20px}.hero-side-line{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;padding:9px 0}.hero-side-line span{color:#9db9bb}.hero-side-line b{color:#f2faf7;font-size:12px}.hero-side-footer{letter-spacing:.13em;font-size:9px;color:#90bcb9;font-weight:800;padding-top:23px}.dashboard-section{padding-top:60px}.dashboard-panel{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--r);padding:27px 32px;display:grid;grid-template-columns:1.1fr 1.1fr;gap:40px;align-items:center}.dashboard-main{display:flex;align-items:center;gap:20px}.dashboard-big{font-size:53px;font-weight:850;letter-spacing:-.08em;line-height:1;color:var(--sea)}.dashboard-main p{font-size:12px;color:var(--muted);max-width:230px}.progress-track{height:10px;border-radius:99px;background:#e7f0eb;overflow:hidden}.progress-track>span{display:block;width:0;height:100%;border-radius:99px;background:linear-gradient(90deg,#35baa4,#11897d);transition:width .4s}.dashboard-meta{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:var(--muted);margin-top:12px}.dashboard-meta span:first-child{font-weight:800;color:var(--ink)}#daily-lessons{padding-top:76px}.searchbox{height:44px;display:flex;align-items:center;gap:9px;padding:0 15px;border:1px solid #d9e4e0;border-radius:10px;background:#fff;color:#7e9296}.searchbox input{border:0;outline:none;background:transparent;font-size:12px;width:218px;min-width:0;color:var(--ink)}.weeks-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.week-panel{border:1px solid var(--line);background:#fff;border-radius:var(--r);padding:28px 28px 20px;box-shadow:0 8px 24px rgba(19,51,58,.025)}.week-top{display:flex;align-items:center;gap:16px}.week-number{display:grid;place-items:center;background:#e4f1ec;color:var(--sea-dark);font-size:13px;font-weight:850;border-radius:12px;min-width:54px;height:54px}.week-english{color:#8a9c9d;font-size:10px;font-weight:750;letter-spacing:.1em;text-transform:uppercase}.week-top h3{margin-top:3px;font-size:21px}.week-description{min-height:50px;color:var(--muted);font-size:12px;margin-top:15px;line-height:1.7}.lesson-grid{display:grid;gap:2px;margin-top:16px}.lesson-tile{min-height:49px;display:flex;align-items:center;gap:14px;padding:10px 10px;border-radius:9px;border-bottom:1px solid #eff2ef}.lesson-tile:hover{background:#f2f8f5}.tile-num{font-size:11px;color:#7ba29b;font-weight:850;font-variant-numeric:tabular-nums;width:25px}.tile-title{font-size:13px;line-height:1.4;font-weight:650;flex:1}.tile-arrow{color:#9aafb0;font-size:15px}.tile-status{width:20px;text-align:center;font-size:17px;color:#aac1b8}.lesson-tile.is-complete .tile-status{color:var(--sea);font-weight:bold}.lesson-tile.is-complete .tile-num{color:var(--sea)}.search-empty{padding:30px 0;color:var(--muted)}.closing-section{display:flex;gap:30px;align-items:center;justify-content:space-between;background:#eaf3ed;border:1px solid #ddebe0;border-radius:18px;padding:38px;margin-top:60px}.closing-section h2{font-size:27px}.closing-section p:last-child{max-width:730px;font-size:13px;color:var(--muted);margin-top:10px}.closing-section .btn{flex-shrink:0}
/* Inner pages */
.standard-page{padding-top:72px}.page-title{font-size:50px;max-width:820px}.page-lede{max-width:740px;color:var(--muted);font-size:15px;line-height:1.9;margin:18px 0 50px}.roadmap-week{display:grid;grid-template-columns:270px 1fr;gap:35px;align-items:start;margin:30px 0 68px}.roadmap-intro{position:sticky;top:22px}.week-pill{display:inline-block;font-size:10px;font-weight:850;letter-spacing:.12em;border-radius:5px;padding:7px 10px;background:#dfeee8;color:var(--sea-dark);margin-bottom:16px}.roadmap-intro h2{font-size:26px}.roadmap-intro p{color:var(--muted);font-size:13px;margin-top:13px}.roadmap-rows{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}.roadmap-row{display:flex;gap:20px;align-items:center;padding:18px 20px;border-bottom:1px solid #e9eeeb;transition:background .2s}.roadmap-row:last-child{border-bottom:0}.roadmap-row:hover{background:#f1f8f4}.roadmap-day{font-weight:850;color:var(--sea);font-size:18px;width:27px}.roadmap-row-main{display:grid;gap:3px;flex:1}.roadmap-row-main strong{font-size:13px}.roadmap-row-main small{font-size:11px;color:var(--muted)}.roadmap-row-status{font-size:11px;font-weight:700;color:#889d9a}.roadmap-arrow{font-size:17px;color:#95acaa}.resource-section{margin:0 0 70px;padding-top:10px}.resource-section>h2{margin-bottom:24px}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.steps-grid>div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 20px}.steps-grid span{display:block;font-weight:850;color:var(--sea);font-size:23px;margin-bottom:20px}.steps-grid h3{font-size:17px;margin-bottom:10px}.steps-grid p{color:var(--muted);font-size:12px}.phrase-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.phrase-card{background:white;border:1px solid var(--line);border-radius:13px;padding:21px;display:grid;gap:7px}.phrase-card strong{font-size:14px}.phrase-card span{font-size:12px;color:var(--muted)}.framework-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.framework-card{background:#fdfdfb;border:1px solid var(--line);border-radius:14px;padding:27px}.framework-label{font-size:10px;font-weight:850;letter-spacing:.13em;color:var(--sea-dark)}.framework-card h3{font-size:20px;margin:13px 0}.framework-card p,.body-copy{font-size:13px;color:var(--muted)}.prompt-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}.prompt-box p{color:#334b53;font-size:14px;line-height:1.95;margin-bottom:20px}.small-hint{color:var(--muted);font-size:12px;margin-top:20px}.resource-section code{padding:2px 5px;background:#e9f0ed;border-radius:4px;font-size:.93em}
/* Daily lessons */
.lesson-shell{display:grid;grid-template-columns:260px minmax(0,860px);justify-content:center;align-items:start;gap:56px;width:min(1400px,calc(100% - 64px));margin:0 auto}.lesson-sidebar{height:calc(100vh - var(--header-height, 78px) - 12px);position:sticky;top:calc(var(--header-height, 78px) + 12px);overflow:auto;padding:31px 12px 20px 0;border-right:1px solid var(--line);scrollbar-width:thin}.sidebar-heading{font-size:10px;font-weight:850;color:var(--sea-dark);letter-spacing:.13em;margin:0 18px 18px}.sidebar-summary{padding:16px 17px;border:1px solid #dce9e4;background:#eef5f0;border-radius:11px;margin:0 15px 25px 0}.sidebar-summary strong{display:block;font-size:13px}.sidebar-summary small{display:block;font-size:11px;color:var(--muted);line-height:1.55;margin-top:3px}.week-group{margin:0 12px 9px 0}.week-group>summary{list-style:none;cursor:pointer;display:flex;gap:8px;align-items:center;border-radius:8px;padding:10px 12px;font-size:11px;font-weight:850;color:var(--ink)}.week-group>summary::-webkit-details-marker{display:none}.week-group>summary:before{content:"▸";color:#88a7a3}.week-group[open]>summary:before{content:"▾"}.week-group>summary span{font-size:10px;font-weight:550;color:var(--muted);margin-left:auto}.side-day-list{padding:3px 0 6px}.side-day{display:flex;align-items:flex-start;gap:11px;margin:2px 0;padding:9px 10px;border-radius:8px;color:#61737a;font-size:11px;line-height:1.4}.side-day:hover,.side-day.current{background:#e3f1eb;color:var(--ink)}.side-day-num{font-size:10px;font-weight:850;color:#75a198;padding-top:1px}.side-day.current .side-day-num{color:var(--sea-dark)}.side-day-title{flex:1}.day-check{width:10px;min-width:10px;height:10px;border:1px solid #bdd0cc;border-radius:50%;margin-top:2px}.day-check.done{background:var(--sea);border-color:var(--sea)}.lesson-article{min-width:0;padding-top:30px}.breadcrumb{display:flex;align-items:center;gap:11px;color:#83979a;font-size:11px;margin:0 0 28px}.breadcrumb a:hover{text-decoration:underline}.breadcrumb strong{color:var(--ink)}.lesson-hero{background:#10333a;color:#fff;padding:41px 42px 34px;border-radius:19px;position:relative;overflow:hidden}.lesson-hero:after{content:"";position:absolute;right:-70px;top:-100px;width:310px;height:310px;border:1px solid #ffffff18;border-radius:50%;box-shadow:0 0 0 58px #ffffff04,0 0 0 116px #ffffff04;pointer-events:none}.lesson-hero-top,.lesson-hero-foot{display:flex;justify-content:space-between;align-items:center;gap:16px;position:relative;z-index:1}.hero-kicker{color:#a7dbca;letter-spacing:.15em;font-size:11px;font-weight:850}.duration-pill{padding:6px 11px;border-radius:99px;background:#234b50;color:#d1e9e1;font-size:11px;font-weight:700}.lesson-hero h1{position:relative;z-index:1;max-width:700px;margin-top:25px;font-size:clamp(29px,3.8vw,43px);line-height:1.17}.lesson-hero>p{position:relative;z-index:1;color:#b7d1cd;font-size:14px;margin:15px 0 35px;max-width:660px}.lesson-hero-foot{font-size:11px;color:#abc7c5;justify-content:flex-start;flex-wrap:wrap}.topic-tag{display:inline-block;border:1px solid #59847b;color:#aee3d5;border-radius:99px;padding:5px 11px}.lesson-section{padding:48px 0;border-bottom:1px solid #dfe8e3}.section-label{font-weight:850;color:var(--sea-dark);font-size:10px;letter-spacing:.16em;margin-bottom:13px}.lesson-section h2{font-size:30px}.section-copy{color:#6c7f81;font-size:13px;max-width:680px;margin:13px 0 26px}.time-list{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:white}.time-item{padding:15px 20px;display:flex;gap:15px;align-items:center;border-bottom:1px solid #edf0ec}.time-item:last-child{border-bottom:0}.time-clock{width:45px;font-size:14px;font-weight:800;color:var(--sea);font-variant-numeric:tabular-nums}.time-title{font-size:13px;flex:1}.time-meter{width:66px;height:5px;border-radius:10px;background:#eff3ed;overflow:hidden}.time-meter span{display:block;height:100%;border-radius:10px;background:#62bdb1}.audio-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.audio-card{background:#fff;border:1px solid var(--line);border-radius:13px;padding:19px}.audio-card-head{display:flex;align-items:center;gap:13px;margin-bottom:19px}.audio-icon{font-size:21px;font-weight:800;color:var(--sea);display:grid;place-items:center;background:#e5f2ec;width:44px;height:44px;border-radius:11px}.audio-card-head strong{display:block;font-size:13px}.audio-card-head small{display:block;font-size:11px;line-height:1.5;color:var(--muted);margin-top:3px}.audio-card audio{display:block;width:100%;height:40px}.audio-card>a{display:inline-block;color:var(--sea-dark);font-size:11px;font-weight:800;margin-top:13px}.audio-card>a:hover{text-decoration:underline}.instruction-box{font-size:13px;border-left:3px solid var(--sea);background:#e8f4ec;padding:18px 20px;border-radius:0 9px 9px 0;margin-top:20px;line-height:1.75}.question-list{margin-top:22px;display:grid;gap:10px}.question-item{border:1px solid var(--line);background:#fff;border-radius:11px;overflow:hidden}.question-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:17px 19px}.question-item summary::-webkit-details-marker{display:none}.question-item[open] summary{background:#f2f8f5;border-bottom:1px solid #e5efea}.q-num{background:#e9f4ee;color:var(--sea-dark);padding:7px 9px;border-radius:7px;font-size:11px;font-weight:850}.q-hidden-text{font-size:13px;font-weight:750;flex:1}.q-hidden-text small{font-size:10px;color:var(--muted);font-weight:500;margin-left:6px}.question-chevron{font-size:18px;color:#799792}.question-item[open] .question-chevron{transform:rotate(45deg)}.question-body{padding:19px 22px 21px}.question-english{font-size:17px;font-weight:750;color:var(--ink);line-height:1.5}.question-vietnamese{font-size:13px;color:var(--muted);margin-top:6px}.vocab-list{border:1px solid var(--line);border-radius:13px;background:#fff;overflow:hidden}.vocab-row{display:grid;grid-template-columns:40px minmax(135px,1fr) 1.2fr;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid #edf1ef}.vocab-row:last-child{border-bottom:0}.vocab-num{font-size:11px;font-weight:850;color:#85a7a1}.vocab-row strong{font-size:13px}.vocab-row>span:last-child{font-size:12px;color:var(--muted)}.answer-reveal{border:1px solid #d8e8e0;border-radius:12px;background:#f1f8f4;margin:8px 0 15px;overflow:hidden}.answer-reveal summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:13px;font-weight:800;padding:20px 22px}.answer-reveal summary::-webkit-details-marker{display:none}.answer-reveal[open] summary{border-bottom:1px solid #dcebe3}.answer-reveal[open] summary span:last-child{transform:rotate(45deg)}.sample-answer{font-size:17px;font-weight:520;line-height:1.95;color:#25464c;padding:22px;white-space:pre-wrap}.framework-box{background:white;border:1px solid var(--line);border-radius:12px;padding:23px;margin-top:16px}.framework-box p{font-size:13px;color:#405a5d;margin-top:10px}.practice-callout{background:var(--ink);border-radius:14px;color:white;padding:27px;margin-top:18px}.callout-index{font-size:10px;color:#b3e0d3;letter-spacing:.14em;font-weight:850}.practice-callout h3{font-size:19px;margin:10px 0}.practice-callout p{color:#d0e1de;font-size:13px}.follow-list{display:grid;grid-template-columns:1fr 1fr;gap:13px}.follow-card{background:#fff;border:1px solid var(--line);border-radius:12px;min-height:110px;padding:22px;display:flex;gap:14px;align-items:start}.follow-card span{font-size:11px;font-weight:850;color:var(--sea)}.follow-card strong{font-size:14px;font-weight:700;line-height:1.6}.criterion-box{display:flex;align-items:start;gap:17px;background:#edf6ed;border:1px solid #dbeadd;padding:20px;border-radius:12px;margin-top:22px}.criterion-mark{width:30px;height:30px;border-radius:50%;background:#d4ebd9;color:var(--sea-dark);display:grid;place-items:center;font-weight:900}.criterion-box strong{font-size:13px}.criterion-box p{font-size:12px;color:#557267;margin-top:5px}.small-heading{font-size:17px;margin:29px 0 14px}.checklist{display:grid;grid-template-columns:1fr 1fr;gap:11px 20px}.check-row{display:flex;align-items:start;gap:10px;cursor:pointer;font-size:12px;color:#38545a}.check-row input{accent-color:var(--sea);width:16px;height:16px;margin:2px 0 0;flex:0 0 16px}.check-row input:checked+span{color:#7d9590;text-decoration:line-through}.notes-layout{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px}.notes-field{display:grid;gap:11px;color:var(--ink);font-size:12px;font-weight:800}.notes-field textarea{resize:vertical;min-height:130px;background:#fff;border:1px solid #d5e4dc;border-radius:10px;padding:13px 14px;font-size:13px;font-weight:400;color:var(--ink);line-height:1.6}.score-card{display:flex;justify-content:space-between;align-items:center;margin-top:32px;gap:15px}.score-card h3{font-size:18px}.score-card p{font-size:12px;color:var(--muted);margin-top:4px}.score-total{font-size:23px;color:var(--sea-dark);font-weight:850;white-space:nowrap}.score-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-top:16px}.score-grid label{display:grid;gap:8px}.score-grid label>span{font-size:11px;font-weight:700}.score-grid select{width:100%;padding:10px 6px;border:1px solid #d4e1dc;background:#fff;border-radius:8px;color:#2d5050;font-size:11px}.complete-btn{margin-top:27px;width:100%;display:flex;align-items:center;justify-content:space-between;gap:15px;text-align:left;background:#123842;color:#fff;border:1px solid #123842;padding:16px 20px;font-weight:800;border-radius:11px;font-size:14px}.complete-btn:hover{background:#24545b}.complete-btn[aria-pressed="true"]{background:#dff2e7;border-color:#bfe3d0;color:#176756}.complete-btn>span:first-child{font-size:21px}.complete-btn>span:nth-child(2){flex:1}.saved-hint{color:#829791;margin-top:13px;font-size:11px}.lesson-bottom-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}.next-prev{border:1px solid var(--line);border-radius:12px;background:#fff;padding:19px;min-height:94px}.next-prev:hover{background:#ecf5ef;border-color:#b6d3c7}.next-prev span{display:block;font-size:10px;letter-spacing:.12em;color:var(--sea-dark);font-weight:800;margin-bottom:6px}.next-prev strong{display:block;font-size:13px;line-height:1.5}.next-prev.next{text-align:right}
/* General responsive behavior */
@media(max-width:1120px){.lesson-shell{grid-template-columns:215px minmax(0,800px);gap:32px}.lesson-sidebar{padding-right:3px}.header-progress{display:none}.home-hero-layout{gap:5%}.hero-side{padding:20px}.hero-side-big{font-size:64px}}
@media(max-width:880px){.container{width:calc(100% - 40px)}.header-inner{width:calc(100% - 40px)}.home-hero-layout{grid-template-columns:1fr;gap:36px;padding:56px 0}.hero-content h1{max-width:720px}.hero-side{max-width:600px}.hero-side-big{font-size:60px}.hero-side-line{max-width:440px}.weeks-grid{grid-template-columns:1fr}.dashboard-panel{grid-template-columns:1fr;gap:18px}.roadmap-week{grid-template-columns:1fr;gap:20px}.roadmap-intro{position:static}.steps-grid{grid-template-columns:repeat(2,1fr)}.lesson-shell{width:calc(100% - 36px);grid-template-columns:1fr;gap:0}.lesson-sidebar{display:none}.lesson-article{max-width:800px;width:100%;margin:auto}.site-footer{margin-top:50px}.footer-inner{width:calc(100% - 40px);flex-wrap:wrap;padding:20px 0;min-height:unset}}
@media(max-width:600px){html{--header-height:125px}.site-header{height:auto;min-height:73px}.header-inner{width:calc(100% - 28px);flex-wrap:wrap;padding:12px 0;gap:9px}.brand-mark{height:37px;width:37px}.brand-text{font-size:14px}.top-nav{margin-left:0;order:3;width:100%;justify-content:space-between;gap:0;border-top:1px solid #edf1ee;padding-top:8px}.top-nav a{font-size:11px;padding:8px 9px}.container{width:calc(100% - 28px)}.home-hero-layout{padding:46px 0}.hero-content h1{font-size:38px}.hero-description{font-size:14px}.hero-actions{display:grid;grid-template-columns:1fr 1fr}.btn{padding:13px 12px;font-size:12px}.hero-side{padding:20px}.dashboard-section{padding-top:42px}.dashboard-panel{padding:20px}.dashboard-big{font-size:42px}.section-heading{align-items:start;flex-direction:column;gap:14px}.searchbox{width:100%}.searchbox input{width:100%}.week-panel{padding:20px 14px 15px}.week-top{gap:12px}.week-top h3{font-size:19px}.tile-title{font-size:12px}.closing-section{padding:22px;flex-direction:column;align-items:start}.closing-section .btn{width:100%}.footer-inner{width:calc(100% - 28px)}.standard-page{padding-top:43px}.page-title{font-size:39px}.page-lede{margin-bottom:38px}.roadmap-week{margin:20px 0 50px}.roadmap-row{padding:15px 12px;gap:10px}.roadmap-row-main small{font-size:10px}.roadmap-row-status{display:none}.phrase-grid,.framework-grid,.steps-grid{grid-template-columns:1fr}.resource-section{margin-bottom:50px}.lesson-shell{width:calc(100% - 24px)}.lesson-article{padding-top:20px}.breadcrumb{margin-bottom:18px}.lesson-hero{padding:29px 23px}.lesson-hero h1{font-size:32px}.lesson-hero-foot{font-size:10px}.lesson-section{padding:35px 0}.lesson-section h2{font-size:25px}.time-item{padding:14px 11px;gap:10px}.time-title{font-size:12px}.time-meter{width:37px}.audio-grid,.follow-list,.notes-layout{grid-template-columns:1fr}.vocab-row{grid-template-columns:28px minmax(100px,1fr);row-gap:2px;padding:13px 12px}.vocab-row>span:last-child{grid-column:2}.q-hidden-text{font-size:12px}.q-hidden-text small{display:block;margin:3px 0 0}.question-item summary{padding:14px 12px}.question-body{padding:16px}.sample-answer{font-size:15px}.checklist{grid-template-columns:1fr}.score-grid{grid-template-columns:repeat(2,1fr)}.lesson-bottom-nav{grid-template-columns:1fr}.next-prev.next{text-align:left}.site-footer{margin-top:34px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}
@media print{body{background:white;color:black}.site-header,.site-footer,.lesson-sidebar,.audio-card audio,.audio-card>a,.complete-btn,.lesson-bottom-nav,.skip-link,.hero-actions,.top-nav,.notes-field textarea{display:none!important}.lesson-shell,.container{display:block;width:100%}.lesson-article{max-width:none}.lesson-hero{background:#fff;color:#000;border:2px solid #555}.lesson-hero>p,.lesson-hero-foot{color:#444}.lesson-section{break-inside:avoid}.question-item,.answer-reveal{break-inside:avoid}.question-body,.sample-answer{display:block}.standard-page{padding-top:0}}