@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');
:root{--ink:#203c3d;--teal:#173f43;--muted:#718180;--bg:#faf9f5;--line:#e2e6df;--rust:#b96443;--pale:#edf2eb;--white:#fff;--font:'DM Sans','Noto Sans SC',system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.7 var(--font)}button,input,select,textarea{font:inherit}button,a,input,select,textarea{ -webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #bd7556;outline-offset:3px}button{border:0}button:disabled{cursor:default;opacity:.55}.sidebar{position:fixed;inset:0 auto 0 0;width:236px;background:#eef1e9;padding:35px 23px;display:flex;flex-direction:column;border-right:1px solid var(--line)}.brand{display:flex;gap:11px;align-items:center;font-size:17px;font-weight:700;letter-spacing:-.5px;line-height:1.3}.brand small{display:block;font-size:11px;font-weight:400;letter-spacing:1px;margin-top:6px}.brand-icon{background:var(--teal);color:#fff;width:43px;height:43px;border-radius:13px;font-size:33px;text-align:center;position:relative;font-family:Georgia;font-style:italic}.brand-icon span{position:absolute;right:2px;top:-4px;font-size:18px;color:#e7b98b}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:600;color:var(--muted)}.sidebar>.eyebrow{margin-top:52px}nav{display:grid;gap:9px}nav button{background:transparent;display:flex;gap:13px;align-items:center;padding:13px 16px;border-radius:8px;color:#647771;text-align:left;font-size:18px}nav button span{font-size:14px}nav button.active{background:var(--teal);color:white}.side-note{margin-top:auto;border-top:1px solid #d7ddd1;padding-top:26px}.side-note>span{font-size:8px;letter-spacing:1.5px}.side-note b{display:block;font-size:21px;margin:12px 0}.side-note p{font-size:12px;color:#6b7c74}.mini-route{font-size:10px;margin-top:28px}.mini-route i{font-style:normal;color:var(--rust)}.side-bottom{margin-top:32px;font-size:9px;color:#778177;display:flex;justify-content:space-between}main{margin-left:236px;max-width:1550px;padding:0 55px}.topbar{height:85px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}.date-tag i{color:#b66743;margin-left:8px;font-size:8px}.view{padding-top:35px}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:45px;align-items:center;padding:10px 0 30px}.hero h1{font-size:clamp(38px,4.1vw,59px);line-height:1.25;letter-spacing:-2px;font-weight:600;margin:16px 0 20px}.hero h1 span{color:var(--rust)}.hero-copy{font-size:14px;color:#70807d;line-height:1.9}.hero-actions{display:flex;gap:20px;align-items:center;margin-top:28px}.primary,.secondary{display:inline-flex;justify-content:center;align-items:center;gap:22px;border-radius:7px;padding:12px 19px;font-weight:500;font-size:13px;min-height:46px}.primary{background:var(--teal);color:white}.primary:hover{background:#245459}.secondary{background:#fff;border:1px solid #cad5cf;color:var(--teal)}.secondary:hover{background:var(--pale)}.text-button{background:transparent;font-size:12px;color:var(--teal);padding:8px 0}.hero-foot{font-size:10px;color:#8a948b;margin-top:22px}.hero-art{background:#eff1e8;border:1px solid #e2e7dc;border-radius:10px;padding:23px 25px 15px;transform:rotate(-2deg)}.art-label{font-size:9px;letter-spacing:2px;color:#849383}.hero-art svg{width:100%;display:block}.art-bottom{border-top:1px solid #d6dece;padding-top:14px;display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:10px}.art-bottom b{font-family:Georgia;font-size:16px;font-style:italic}.stats{display:grid;grid-template-columns:repeat(4,1fr);padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stats>div{display:flex;align-items:baseline;gap:13px;padding-left:24px;border-left:1px solid var(--line)}.stats>div:first-child{border:0;padding-left:0}.stats b{font-size:28px;font-weight:500}.stats span{font-size:11px;color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:end;margin:32px 0 18px}.section-heading .eyebrow{margin:0 0 5px}h2{font-size:21px;font-weight:600;line-height:1.4;margin:8px 0 15px}.muted{color:var(--muted);font-size:13px}.filters{display:flex;gap:12px}.search{display:flex;align-items:center;gap:13px;background:#fff;border:1px solid #d8dfd5;border-radius:7px;padding:9px 14px;flex:1}.search span{font-size:24px;color:#81928a}.search input{border:0;outline:none;width:100%;background:transparent;font-size:13px}.filters select,.study-toolbar select{border:1px solid #d8dfd5;border-radius:7px;padding:10px;background:#fff;color:#455e56;font-size:12px}.chips{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 25px}.chips button{padding:7px 13px;font-size:11px;background:#efefea;color:#708078;border-radius:5px}.chips button.active{background:#e0e8dc;color:#244536;font-weight:700}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.word-card{background:white;border:1px solid var(--line);border-radius:9px;padding:19px 20px;position:relative;display:flex;flex-direction:column;min-height:214px}.card-top{display:flex;justify-content:space-between;color:#839187;font-size:10px;align-items:center}.priority-label{color:#b27656;background:#fbf1e9;font-size:9px;padding:2px 7px;border-radius:4px}.word-card h3{font-size:21px;line-height:1.3;letter-spacing:-.5px;margin:16px 0 5px;color:#213f42;font-weight:600}.word-card h3 button{padding:0;text-align:left;background:none;color:inherit;font:inherit}.word-card .meaning{margin:0 0 14px;font-size:13px;color:#718279}.card-bottom{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-top:auto;border-top:1px solid #edf0e9;padding-top:12px;font-size:10px}.card-bottom>span{color:#88948b}.icon-button{padding:3px 7px;background:none;color:#6d8379;font-size:17px;min-width:32px;min-height:32px}.icon-button.starred{color:#b36541}.card-detail-link{font-size:11px;padding:4px 0;background:none;color:#385e55}.more{display:flex;margin:28px auto}.empty{padding:40px;text-align:center;background:#f0f3ec;border-radius:8px;grid-column:1/-1}.learning-note{padding:20px 25px;background:#f0f2e9;border-radius:8px;margin:35px 0;font-size:13px}.learning-note b{font-weight:500}.learning-note p{font-size:11px;color:var(--muted);margin:8px 0 0}footer{margin-top:45px;border-top:1px solid var(--line);padding:23px 0;display:flex;align-items:center;gap:20px;font-size:12px;color:#5e756c}footer span{font-size:10px;color:#879188}footer small{margin-left:auto;font-size:9px;color:#879188}.page-title{font-size:36px;line-height:1.4;letter-spacing:-1px;margin:14px 0}.study-toolbar{display:flex;gap:10px;margin:28px 0;flex-wrap:wrap}.mode-tabs{display:flex;gap:25px;border-bottom:1px solid var(--line);margin-bottom:25px}.mode-tabs button{background:none;padding:12px 0;color:var(--muted);font-size:13px;border-bottom:2px solid transparent}.mode-tabs button.active{color:var(--teal);border-color:var(--teal)}.flash-card,.quiz-card{max-width:760px;margin:0 auto;padding:35px;background:#fff;border:1px solid var(--line);border-radius:14px}.flash-top{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}.progress{height:4px;background:#e6ece2;border-radius:3px;margin-top:15px;overflow:hidden}.progress>div{background:var(--rust);height:100%}.flash-front{text-align:center;padding:45px 10px 20px}.flash-front h2{font-size:40px;margin:0 0 10px;line-height:1.3;overflow-wrap:anywhere}.flash-front .muted{margin-top:15px}.reveal{display:flex;justify-content:center;margin:20px 0}.flash-answer{border-top:1px solid var(--line);padding-top:22px}.flash-answer h3{font-size:21px}.rate-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:25px}.rate-buttons button{border-radius:7px;padding:12px;background:#f0f2ec;font-size:13px;color:#365249}.rate-buttons button:first-child{background:#fbefea;color:#a66145}.rate-buttons button:last-child{background:#e5eee1;color:#32533b}.study-tip{font-size:11px;color:var(--muted);margin:25px auto;max-width:760px}.quiz-card h2{font-size:24px;line-height:1.7;overflow-wrap:anywhere}.options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:23px 0}.options button{background:#fafbf7;border:1px solid #d9e2d5;border-radius:7px;padding:15px;text-align:left;color:var(--ink);font-size:14px;opacity:1}.options button.correct{background:#e0eedb;border-color:#608156}.options button.wrong{background:#f8e5dd;border-color:#ac6244}.feedback{padding:15px;background:#f2f4ee;border-radius:7px;font-size:13px}.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:35px 0}.download-card{background:white;border:1px solid var(--line);border-radius:10px;padding:28px 23px}.file-badge{color:#9b6547;font-size:10px;letter-spacing:1px;background:#f9efe6;padding:5px 9px}.download-card h2{margin-top:24px}.download-card p{font-size:13px;color:var(--muted);min-height:80px}.download-card small{display:block;color:var(--muted);font-size:10px;margin-top:15px}.print-panel{background:#eff2e9;padding:28px;border-radius:8px}.print-panel p{color:var(--muted);font-size:13px}.print-panel label{display:inline-flex;align-items:center;gap:5px;font-size:12px;margin-right:20px}.print-panel #printCount{display:block;margin-top:12px}.extend-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-top:35px}.panel{background:#fff;border:1px solid var(--line);padding:27px;border-radius:9px;margin-bottom:20px}.panel label{display:block;font-size:12px;color:#658072;margin:15px 0}.panel input:not([type=file]),.panel textarea,.panel select{width:100%;padding:10px;border:1px solid #dbe1d7;border-radius:5px;display:block;margin-top:7px;background:#fdfefb}.panel textarea{min-height:100px}.panel p{font-size:12px;color:var(--muted)}.file-input{border:1px dashed #c3cfc0;padding:15px;border-radius:5px}.file-input input{margin-top:10px;width:100%;font-size:11px}.source-panel a{display:block;font-size:12px;text-decoration:underline;margin:14px 0}dialog{width:min(700px,calc(100% - 24px));max-height:90dvh;overflow:auto;border:1px solid #dce3d8;border-radius:15px;padding:35px;color:var(--ink);background:var(--bg)}dialog::backdrop{background:#15383b85;backdrop-filter:blur(3px)}.close{position:absolute;right:15px;top:12px;background:none;color:#5e7469;font-size:27px;width:36px;height:36px}.detail-title{font-size:34px;line-height:1.3;overflow-wrap:anywhere;margin:12px 0}.detail-meaning{font-size:18px;color:#849180;margin:0 0 18px}.detail-block{margin-top:20px;border-top:1px solid var(--line);padding-top:16px}.detail-block h3{font-size:11px;letter-spacing:1px;color:#88958b;margin:0 0 8px}.detail-block p{margin:0;font-size:14px;line-height:1.9}.example-box{padding:17px;background:#eef2e9;border-radius:8px}.example-box p{font-family:var(--font);font-size:16px}.diagram{max-width:450px;margin:18px auto 0}.diagram svg{width:100%;display:block}.detail-error{color:#a26549}.synonym-note{font-size:10px;color:#879087}.saved-note{color:#5e7c58;font-size:11px}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--teal);color:#fff;padding:12px 22px;border-radius:8px;display:none;z-index:10;font-size:13px;max-width:90vw}#printArea{display:none}[hidden]{display:none!important}
@media(min-width:1500px){main{padding:0 80px}.hero{gap:80px}}
@media(max-width:1100px){.sidebar{width:205px;padding:30px 18px}main{margin-left:205px;padding:0 30px}.hero{gap:25px}.hero-actions{gap:12px;flex-wrap:wrap}.stats>div{display:block}.stats span{display:block}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.download-grid{grid-template-columns:1fr}.download-card p{min-height:0}.download-card{padding:24px}.art-bottom{display:block}.art-bottom span{display:block}.brand{font-size:15px}}
@media(max-width:700px){.sidebar{position:sticky;top:0;z-index:5;width:auto;background:#eef1e9;padding:12px 18px;display:block}.brand{font-size:14px;gap:8px}.brand-icon{width:30px;height:30px;font-size:24px;border-radius:8px}.brand-icon span{font-size:13px}.brand small{font-size:8px;margin-top:3px}.sidebar>.eyebrow,.side-note,.side-bottom{display:none}nav{display:flex;gap:6px;margin-top:13px}nav button{justify-content:center;flex:1;padding:9px 2px;gap:6px;font-size:13px;border-radius:5px}nav button span{font-size:11px}main{margin-left:0;padding:0 20px}.topbar{height:50px;font-size:10px}.date-tag{display:none}.view{padding-top:24px}.hero{display:block;padding-top:0}.hero h1{font-size:43px;line-height:1.3}.hero-copy{font-size:13px}.hero-art{margin:30px 8px 5px;transform:rotate(-1deg);padding:18px}.hero-art svg{max-height:190px}.art-bottom{display:flex}.hero-actions{gap:18px}.hero-foot{font-size:10px}.stats{padding:15px 0}.stats>div{padding-left:12px}.stats b{font-size:24px}.stats span{font-size:9px}.section-heading h2{font-size:19px}.section-heading .muted{font-size:10px}.filters{flex-wrap:wrap;gap:8px}.search{flex-basis:100%}.filters select{flex:1;font-size:11px}.chips{gap:6px;margin:15px 0 20px}.chips button{font-size:10px;padding:6px 10px}.cards{gap:10px}.word-card{padding:14px 12px;min-height:205px}.word-card h3{font-size:18px;overflow-wrap:anywhere}.word-card .meaning{font-size:12px}.card-top{font-size:9px}.card-bottom{flex-wrap:wrap;font-size:9px;gap:5px}.card-detail-link{font-size:10px}.icon-button{padding:2px 5px}.page-title{font-size:29px}.study-toolbar{gap:8px}.study-toolbar select{flex:1;min-width:130px}.study-toolbar .secondary{flex:1}.flash-card,.quiz-card{padding:22px 18px}.flash-front{padding:40px 0 20px}.flash-front h2{font-size:32px}.rate-buttons{gap:6px}.rate-buttons button{font-size:11px;padding:13px 3px}.options{grid-template-columns:1fr}.mode-tabs{gap:23px}.mode-tabs button{font-size:12px}.extend-grid{grid-template-columns:1fr}.panel{padding:21px}.print-panel{padding:22px}.print-panel button{margin-top:16px}dialog{padding:30px 22px}.detail-title{font-size:30px}footer{flex-wrap:wrap;gap:8px}footer small{margin-left:0;width:100%}.learning-note{padding:18px}.download-grid{margin-top:25px}}
@media print{@page{size:A5;margin:10mm}body{background:white;color:#000;font:9pt/1.35 sans-serif}.sidebar,main,dialog,#toast{display:none!important}#printArea{display:block}#printArea h1{font-size:15pt}#printArea h2{font-size:11pt;margin:12pt 0 6pt}#printArea p{font-size:8pt}#printArea table{width:100%;border-collapse:collapse}#printArea td{border-bottom:1px solid #ddd;padding:5pt 3pt;vertical-align:top;font-size:9pt}#printArea tr{break-inside:avoid}#printArea td:first-child{width:43%;font-weight:600}#printArea .print-colloc{display:block;font-size:7pt;color:#444;font-weight:400}}