styles.css

:root{--ink:#203c36;--muted:#71807b;--orange:#ef6a3b;--orange-dark:#db5429;--cream:#fffaf2;--paper:#fffefd;--mint:#dcebe4;--line:#e9e4da;--yellow:#f5c851;--shadow:0 18px 50px rgba(42,69,60,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:"DM Sans","Noto Sans SC",sans-serif;transition:.25s}button,input{font:inherit}.site-header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,28px);border-bottom:1px solid var(--line);background:rgba(255,250,242,.93);backdrop-filter:blur(12px);position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:22px;font-weight:700;text-decoration:none}.brand-mark{display:grid;place-items:center;width:35px;height:35px;border-radius:50% 50% 45% 55%;background:var(--orange);color:white;font-size:18px;transform:rotate(-6deg)}nav{display:flex;gap:34px;height:100%}.nav-link{border:0;background:transparent;color:var(--muted);font-weight:600;padding:3px 2px 0;position:relative;cursor:pointer}.nav-link.active{color:var(--ink)}.nav-link.active:after{content:"";height:3px;background:var(--orange);border-radius:4px;position:absolute;bottom:0;left:0;right:0}.header-actions{display:flex;align-items:center;gap:12px}.icon-button{border:1px solid var(--line);background:var(--paper);height:38px;width:38px;border-radius:50%;cursor:pointer;color:var(--ink)}.streak{height:38px;padding:0 13px;display:flex;align-items:center;gap:5px;background:#fff2df;border-radius:19px}.streak-label{font-size:12px;color:var(--muted)}main{min-height:calc(100vh - 78px)}.view{display:none}.view.active{display:block}.hero{max-width:1180px;margin:0 auto;padding:58px 30px 34px;display:flex;justify-content:space-between;align-items:end}.eyebrow{font-size:11px;font-weight:700;letter-spacing:2.2px;color:var(--orange);margin:0 0 10px}.hero h1,.page-title h1{font-size:45px;line-height:1.14;letter-spacing:-1.7px;margin:0}.hero h1 em{font-style:normal;color:var(--orange);position:relative}.hero h1 em:after{content:"";position:absolute;left:4px;right:5px;bottom:-7px;height:7px;border-top:2px solid var(--yellow);border-radius:50%}.hero-copy{max-width:530px;color:var(--muted);font-size:15px;line-height:1.8;margin:24px 0 0}.daily-card{width:280px;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:19px 20px;box-shadow:0 10px 30px rgba(42,69,60,.06)}.daily-top{display:flex;justify-content:space-between;font-size:13px}.daily-top strong{color:var(--orange)}.progress-track{height:7px;background:#f0ece4;border-radius:8px;margin:13px 0 10px;overflow:hidden}.progress-track span{display:block;height:100%;width:40%;background:var(--orange);border-radius:8px;transition:.3s}.daily-card p{margin:0;color:var(--muted);font-size:12px}.daily-card p b{color:var(--ink)}.learn-layout{border-top:1px solid var(--line);display:grid;grid-template-columns:280px minmax(520px,680px);justify-content:center;gap:70px;padding:35px 30px 70px}.level-panel{padding-top:12px}.panel-label{font-size:12px;color:var(--muted);font-weight:600;margin:0 0 13px}.level-tabs{display:flex;background:#f0eee7;border-radius:10px;padding:4px}.level-tab{flex:1;border:0;background:transparent;border-radius:8px;color:var(--muted);padding:9px 5px;cursor:pointer}.level-tab strong,.level-tab span{display:block}.level-tab span{font-size:10px;margin-top:2px}.level-tab.active{background:var(--paper);color:var(--orange);box-shadow:0 2px 8px rgba(38,55,50,.08)}.level-info{display:flex;align-items:center;gap:15px;margin-top:25px;padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:14px}.level-ring{width:58px;height:58px;border:6px solid var(--mint);border-top-color:var(--orange);border-radius:50%;display:flex;align-items:center;justify-content:center}.level-ring span{font-weight:700}.level-ring small{font-size:8px}.level-info strong{font-size:14px}.level-info p{font-size:11px;color:var(--muted);margin:3px 0}.tip{font-size:11px;color:var(--muted);line-height:1.6;margin-top:20px;padding:15px;border-left:2px solid var(--yellow)}.tip span{margin-right:5px}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:16px}.section-heading h2{font-size:23px;margin:0}.section-heading p{margin-bottom:5px}.section-heading>span{font-size:12px;color:var(--muted)}.word-card{min-height:405px;background:var(--paper);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:28px 38px;position:relative;overflow:hidden}.word-card:before{content:"";position:absolute;right:-45px;top:-65px;width:160px;height:160px;background:#fff4df;border-radius:50%}.card-tags{display:flex;gap:7px}.card-tags span{font-size:10px;border-radius:10px;background:var(--mint);padding:4px 10px;font-weight:600}.card-tags span+span{background:#f5eee2;color:var(--muted)}.favorite-button{position:absolute;right:28px;top:22px;border:0;background:transparent;color:var(--orange);font-size:28px;cursor:pointer;z-index:2}.favorite-button.active{font-size:0}.favorite-button.active:after{content:"♥";font-size:25px}.word-main{text-align:center;margin-top:10px}.article{display:inline-block;font-size:12px;color:var(--muted);background:#f5f1e9;border-radius:10px;padding:3px 9px;margin:0}.word-main h3{font-family:Georgia,serif;font-size:48px;font-weight:500;letter-spacing:-1px;margin:6px 0 9px}.sound-button{border:1px solid #f4b9a4;background:#fff6f2;color:var(--orange);border-radius:18px;padding:7px 13px;font-size:11px;font-weight:700;cursor:pointer}.sound-button:hover{background:#ffebe3}.phonetic{color:var(--muted);font-size:12px;margin:9px}.divider{height:1px;background:var(--line);margin:18px 0}.meaning{text-align:center}.meaning span{display:block;font-size:10px;color:var(--muted);margin-bottom:4px}.meaning strong{font-size:18px}.example{background:#f4f7f3;border-radius:12px;margin-top:18px;padding:13px 18px 12px 35px;position:relative}.example>span{position:absolute;left:14px;top:5px;color:#9cb1a7;font-family:Georgia;font-size:28px}.example p{font-family:Georgia,serif;margin:0 0 4px;font-size:14px;font-style:italic}.example small{color:var(--muted);font-size:10px}.card-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-top:17px}.card-actions button,.primary-button,.secondary-button,.know-button{height:45px;border-radius:10px;font-weight:600;font-size:13px;cursor:pointer}.secondary-button{border:1px solid var(--line);background:var(--paper);color:var(--muted)}.know-button{border:1px solid #9bc9b6;background:#f2faf6;color:#40856b}.know-button span{margin-right:5px}.primary-button{border:1px solid var(--orange);background:var(--orange);color:white;box-shadow:0 7px 16px rgba(239,106,59,.2)}.primary-button:hover{background:var(--orange-dark)}.keyboard-tip{text-align:center;color:#a4aaa6;font-size:9px;margin-top:14px}.keyboard-tip kbd{border:1px solid #ddd8cf;background:white;border-radius:3px;padding:1px 4px;margin:0 2px}.keyboard-tip span{margin:0 8px}.narrow-view{max-width:680px;margin:0 auto;padding:60px 25px 90px}.page-title{text-align:center;margin-bottom:32px}.page-title>p:last-child{color:var(--muted)}.quiz-card{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:30px}.quiz-meta{display:flex;justify-content:space-between;font-size:11px;color:var(--muted)}.quiz-meta span:first-child{background:var(--mint);padding:4px 10px;border-radius:9px;color:var(--ink);font-weight:700}.quiz-card h2{text-align:center;font-family:Georgia,serif;font-size:42px;margin:8px 0 28px}.compact{display:block;margin:5px auto}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.quiz-option{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px;color:var(--ink);cursor:pointer;text-align:left}.quiz-option:hover,.quiz-option.selected{border-color:var(--orange);background:#fff6f2}.quiz-option.correct{border-color:#5ba883;background:#edf8f2}.quiz-option.wrong{border-color:#d85f50;background:#fff0ee}.quiz-feedback{min-height:22px;text-align:center;font-size:12px}.full{width:100%}.primary-button:disabled{opacity:.4;cursor:not-allowed}.wide-view{max-width:1050px;margin:auto;padding:55px 30px 90px}.words-title{display:flex;text-align:left;justify-content:space-between;align-items:end}.search{width:310px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:11px 14px;display:flex;gap:8px}.search input{border:0;outline:0;background:transparent;color:var(--ink);width:100%}.filter-row{display:flex;gap:8px;margin:25px 0}.filter{border:1px solid var(--line);border-radius:18px;background:var(--paper);color:var(--muted);padding:7px 15px;cursor:pointer;font-size:12px}.filter.active{background:var(--ink);color:white;border-color:var(--ink)}.word-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.word-row{background:var(--paper);border:1px solid var(--line);border-radius:13px;padding:17px 20px;display:grid;grid-template-columns:42px 1fr auto;align-items:center;gap:13px}.word-row .level-badge{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--mint);font-size:11px;font-weight:700}.word-row h3{font-family:Georgia,serif;margin:0 0 4px;font-size:20px}.word-row p{margin:0;color:var(--muted);font-size:12px}.row-heart{border:0;background:transparent;color:var(--orange);font-size:21px;cursor:pointer}footer{min-height:105px;border-top:1px solid var(--line);padding:28px max(5vw,30px);display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:11px}footer>span{font-weight:700;color:var(--ink);font-size:16px}.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);background:var(--ink);color:white;border-radius:9px;padding:10px 18px;font-size:12px;opacity:0;pointer-events:none;transition:.25s;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}body.dark{--ink:#f1eee7;--muted:#a8b1ad;--cream:#16201e;--paper:#202d29;--mint:#30483f;--line:#35413d;--shadow:0 18px 50px rgba(0,0,0,.22)}body.dark .site-header{background:rgba(22,32,30,.92)}body.dark .level-tabs,body.dark .article,body.dark .example{background:#293633}body.dark .daily-card p b{color:var(--ink)}body.dark .word-card:before{background:#29362f}body.dark .keyboard-tip kbd{background:#283532;border-color:#3d4945}body.dark .streak{background:#4a3828}body.dark .sound-button{background:#3b2e29}body.dark .search input{color:var(--ink)}
@media(max-width:850px){.learn-layout{grid-template-columns:1fr;gap:25px;max-width:700px;margin:auto}.level-panel{display:grid;grid-template-columns:1fr 1fr;gap:10px}.panel-label,.tip{display:none}.level-info{margin:0}.hero{align-items:center}.daily-card{width:230px}.word-list{grid-template-columns:1fr}}@media(max-width:620px){.site-header{padding:0 16px;height:66px}.brand>span:last-child{display:none}nav{gap:18px}.streak-label{display:none}.hero{padding:38px 20px 25px;display:block}.hero h1,.page-title h1{font-size:34px}.daily-card{width:100%;margin-top:28px}.learn-layout{padding:25px 18px 55px}.level-panel{display:block}.level-info{display:none}.word-card{padding:23px 20px;min-height:405px}.word-main h3{font-size:40px}.card-actions{grid-template-columns:1fr 1fr}.know-button{display:none}.keyboard-tip{display:none}.words-title{display:block}.search{width:100%;margin-top:22px}.quiz-options{grid-template-columns:1fr}footer p{display:none}}