/* Morro English · editorial study desk */
:root{--bg:#f6f5f1;--paper:#fffefa;--ink:#202929;--muted:#677371;--line:#dedfd8;--teal:#bd573b;--soft:#f7e9e2;--shadow:none}
body{font-family:'DM Sans','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;font-size:15px;background:var(--bg);line-height:1.55}
.shell{grid-template-columns:238px minmax(0,1fr)}
.sidebar{background:#efeee8;color:var(--ink);border-right:1px solid var(--line);padding:31px 18px}
.brand{font-family:Manrope,sans-serif;padding:0 12px 64px;gap:10px;font-size:23px;letter-spacing:-1.5px}
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.brand small{color:#767f79;font-size:9px;letter-spacing:2.6px;margin-top:-5px}
.side-label{color:#8b948e;padding:0 16px;margin-bottom:15px;font-size:10px}
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.nav-item.active,.nav-item:hover{background:#dedfd7;color:#1d2b28}
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.nav-icon{font:700 11px Manrope,sans-serif;color:#9b6557;text-align:left;width:21px}
.side-bottom{border:0;padding:0 13px 12px}.side-rule{height:1px;background:#cfd2ca;margin-bottom:25px}.side-quote{font-size:17px;line-height:1.6;font-weight:600;margin-bottom:25px;letter-spacing:-.4px}.side-bottom span{color:#89918a;font-size:10px;letter-spacing:1.4px}
.topbar{height:70px;background:var(--bg);padding:0 clamp(28px,5vw,76px)}.crumb{color:#87918c;font-size:10px;letter-spacing:1.2px}.crumb strong{color:#394641;font-size:11px;font-weight:700}.crumb span{color:#b9bfb7}.top-actions{color:#748078}.icon-btn{border:0;background:transparent;color:#59655e;border-radius:4px;font-size:12px;padding:11px}
main{max-width:1220px;padding:46px clamp(28px,5vw,76px) 100px}
.eyebrow{color:#9c503b;font-size:10px;font-weight:800;letter-spacing:1.9px}.page-title{font-size:clamp(32px,3.3vw,45px);letter-spacing:-1.7px;margin:10px 0;line-height:1.25}.sub{color:#697671;line-height:1.75;font-size:14px;margin-bottom:27px}
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.btn{background:#263731;color:#fff;border-radius:5px;padding:12px 17px;min-height:44px;font-size:13px;font-weight:700;box-shadow:none;transition:background .2s,transform .2s}.btn:hover{background:#bd573b;transform:translateY(-1px)}.btn.outline{border-color:#b9c0b9;color:#36473e;background:transparent}.btn.outline:hover{background:#e9eee7}.btn.light{background:#efece4;color:#334139}.btn.ghost{background:transparent;color:#9a513c;padding:8px 0;min-height:34px}.btn.ghost:hover{background:none;color:#623527;transform:none}
.ledger{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);margin:25px 0 49px}.ledger>div{padding:16px 18px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:7px}.ledger>div:first-child{padding-left:0}.ledger>div:last-child{border-right:0}.ledger span{font-size:11px;color:#78857c}.ledger strong{font:700 25px Manrope,sans-serif;letter-spacing:-1px}.ledger small{font:500 11px 'DM Sans',sans-serif;letter-spacing:0;color:#87918a}
.section-head{margin:41px 0 15px}.section-head h2{font-size:21px;letter-spacing:-.7px;margin-top:5px}.section-head p{font-size:12px;margin-top:3px;color:#7b877e}.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:5px;box-shadow:none}.lesson-card{min-height:210px;padding:19px 20px 15px;transition:border-color .2s,transform .2s;text-align:left}.lesson-card:hover{border-color:#aa7d6d;transform:translateY(-2px)}.lesson-no{font:700 22px Manrope,sans-serif;letter-spacing:-1px;color:#bd573b}.lesson-no span{font-size:10px;letter-spacing:0;color:#9ba49a}.lesson-main{display:flex;align-items:start;justify-content:space-between;gap:12px;margin:17px 0 21px}.lesson-main h3{margin:0 0 4px;font-size:16px;letter-spacing:-.3px}.lesson-main p{font-size:11px;color:#7b877c}.lesson-arrow{color:#b76044;font-size:18px}.lesson-foot{border-top:1px solid var(--line);padding:11px 0 9px;font-size:11px;color:#78867a}.lesson-card>.progress-track{height:3px;width:100%;background:#e9ebe4}.progress-track>span{background:#b4563a}
.review-strip{display:flex;align-items:center;gap:23px;background:#fffefa;border:1px solid var(--line);border-radius:5px;padding:20px 25px}.review-number{font:700 34px Manrope,sans-serif;color:#b4563a;letter-spacing:-2px}.review-strip>div{flex:1}.review-strip strong{font-size:14px}.review-strip p{font-size:12px;color:#859087;margin:3px 0 0}.review-strip .btn{white-space:nowrap}
.timeline{gap:0;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:5px;overflow:hidden}.timeline .card{border:0;border-right:1px solid var(--line);border-radius:0;padding:22px 20px}.timeline .card:last-child{border:0}.timeline strong{font-size:14px;margin:14px 0 5px}.timeline p{font-size:11px}.chip{background:#f1eee7;color:#9e563e;border-radius:2px;padding:5px 8px;font-size:10px}
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.stepper{overflow-y:hidden;scrollbar-width:none}.stepper::-webkit-scrollbar{display:none}
.word{border-radius:4px}.word h3{letter-spacing:-.6px}.word .cn{color:#8e4c39}.mini-btn{border-radius:4px;background:#f5f5ef;color:#485b50;min-height:36px}.mini-btn.selected{background:#eee2d8;color:#8d4936;border-color:#dfc6b5}.audio-box{background:#f0f0e9;border-radius:4px}.audio-box .play{background:#293c35;border-radius:4px;width:42px;height:42px}.field input,.field textarea,select{border-radius:4px;background:#fffefa;font-size:14px}.field input:focus,.field textarea:focus{border-color:#ae5a40;box-shadow:0 0 0 3px #e9d1c6}.note,.callout{border-radius:4px;background:#f1f0e9;border-color:#e0e2d8}.passage{background:#f7f6f0;border-left-color:#b4563a;border-radius:0}.answer-item{background:#f8f8f3;border-radius:4px}.prompt{border-radius:4px;background:#f7f7f1}.tag{border-radius:2px}.review-card{max-width:640px}.review-front{font-size:39px}.timer{color:#b4563a}.empty{border-radius:5px}.modal{border-radius:5px}.toast{border-radius:4px}
.mini-btn,.audio-box .play,.step,.icon-btn{min-height:44px}.audio-box .play{min-width:44px}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid #b4563a;outline-offset:3px}
@media(max-width:1050px){.shell{grid-template-columns:205px 1fr}.sidebar{padding:26px 13px}.grid{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:repeat(2,1fr)}.timeline .card:nth-child(2){border-right:0}.timeline .card:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media(max-width:730px){.shell{display:block}.topbar{height:58px;background:var(--bg);padding:0 18px}.mobile-nav{background:#f8f7f3;border-top:1px solid var(--line);box-shadow:none}.mobile-nav button{color:#7c887d;min-height:49px;gap:0;font-size:10px}.mobile-nav button b{font:700 11px Manrope,sans-serif;color:#a25740}.mobile-nav button.active{color:#9c4d35}main{padding:28px 18px 105px}.home-header{align-items:start;margin-bottom:24px}.home-header .page-title{font-size:31px}.goal-note{display:none}.hero{display:block;min-height:0;padding:25px;border-radius:5px}.hero h2{font-size:27px}.hero-side{border-left:0;border-top:1px solid #cbd1c6;padding:16px 0 0;margin-top:24px;display:flex;flex-direction:row;align-items:center;justify-content:space-between}.hero-count{font-size:28px;letter-spacing:-1px}.hero-side .progress-track{width:70px;margin:0}.ledger{grid-template-columns:repeat(2,1fr);margin:20px 0 35px}.ledger>div{padding:12px;border-bottom:1px solid var(--line)}.ledger>div:first-child{padding-left:12px}.ledger>div:nth-child(2){border-right:0}.ledger>div:nth-child(n+3){border-bottom:0}.ledger strong{font-size:22px}.grid,.word-grid,.two-col{grid-template-columns:1fr}.lesson-card{min-height:155px}.lesson-main{margin:8px 0 13px}.section-head{margin-top:33px}.review-strip{padding:16px;gap:12px}.review-number{font-size:25px}.review-strip .btn{display:none}.timeline{grid-template-columns:1fr}.timeline .card{border-right:0;border-bottom:1px solid var(--line)!important;padding:16px 18px}.timeline .card:last-child{border-bottom:0!important}.stepper{margin:12px -18px 20px;padding:0 18px}.step{padding:12px 13px}.lesson-top .page-title{font-size:30px}.panel{padding:21px}.stats{grid-template-columns:repeat(2,1fr)}.toast{bottom:80px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
.lex-summary{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;border-block:1px solid var(--line);padding:18px 0 20px;margin-bottom:18px}.lex-summary strong{font:700 38px Manrope,sans-serif;letter-spacing:-2px}.lex-summary span{color:var(--muted);font-size:12px}.lex-summary span:last-child{margin-left:auto}.lex-controls{display:grid;grid-template-columns:minmax(210px,1fr) auto 145px 170px;gap:10px;align-items:end;margin-bottom:15px}.lex-controls .field{margin:0}.lex-controls .btn{height:44px}.lex-count{font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding:8px 0 14px;margin-bottom:17px}.lex-pages{display:flex;align-items:center;justify-content:center;gap:17px;margin:27px 0}.lex-pages span{font-size:12px;color:var(--muted)}.lex-credit{border-top:1px solid var(--line);padding-top:18px;max-width:790px}.lex-credit a{color:#9c503b;text-decoration:underline}.lex-summary+.lex-controls input,.lex-summary+.lex-controls select{height:44px}
@media(max-width:730px){.lex-summary span:last-child{width:100%;margin-left:0}.lex-controls{grid-template-columns:1fr auto}.lex-controls .field:first-child{grid-column:1}.lex-controls .field:nth-of-type(2),.lex-controls .field:nth-of-type(3){grid-column:auto}.lex-controls .field:nth-of-type(3){grid-column:2}.lex-controls .btn{grid-column:2;grid-row:1}.lex-count span:last-child{display:none}}
.review-metrics{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);margin:0 0 22px}.review-metrics>div{display:flex;flex-direction:column;padding:14px 19px;border-right:1px solid var(--line)}.review-metrics>div:first-child{padding-left:0}.review-metrics>div:last-child{border:0}.review-metrics strong{font:700 28px Manrope,sans-serif;color:var(--ink)}.review-metrics span{font-size:11px;color:var(--muted)}.curve{max-width:640px;margin:17px 0 30px;padding:19px 22px;background:#f0f0e9;border:1px solid var(--line);border-radius:5px}.curve .row{align-items:baseline}.curve strong{font-size:14px}.curve span,.curve p{font-size:11px;color:var(--muted)}.curve svg{display:block;width:100%;height:auto;margin:8px auto 0}.curve text{fill:#818e84;font:10px 'DM Sans',sans-serif}.curve p{margin:5px 0 0;line-height:1.6}.review-card .action-row{gap:9px}.review-card .action-row .btn{flex:1}
@media(max-width:730px){.review-metrics{grid-template-columns:repeat(2,1fr)}.review-metrics>div{padding:10px 14px;border-bottom:1px solid var(--line)}.review-metrics>div:nth-child(2){border-right:0}.review-metrics>div:nth-child(n+3){border-bottom:0}.review-metrics>div:first-child{padding-left:14px}.review-card .action-row .btn{flex:1 1 100%}.curve{padding:15px}.curve .row{display:block}.curve span{display:block;margin-top:4px}}