@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@600;700&display=swap');
:root{--bg:#f7f8f5;--surface:#fff;--surface-2:#f1f3ee;--text:#18201c;--muted:#778078;--line:#e5e8e2;--green:#2c684c;--green-2:#e5f1e9;--coral:#d9785d;--shadow:0 10px 30px rgba(27,45,34,.06);color-scheme:light}
[data-theme=dark]{--bg:#131714;--surface:#1b211d;--surface-2:#242b26;--text:#edf2ee;--muted:#9ba59e;--line:#303832;--green:#72b18f;--green-2:#243c2d;--shadow:0 10px 30px rgba(0,0,0,.2);color-scheme:dark}
@media(prefers-color-scheme:dark){[data-theme=system]{--bg:#131714;--surface:#1b211d;--surface-2:#242b26;--text:#edf2ee;--muted:#9ba59e;--line:#303832;--green:#72b18f;--green-2:#243c2d;--shadow:0 10px 30px rgba(0,0,0,.2);color-scheme:dark}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.55 'DM Sans',system-ui,sans-serif}a{color:var(--green);text-decoration:none}h1,h2,h3{font-family:Manrope,'DM Sans',sans-serif;letter-spacing:-.035em;margin:.15em 0}h1{font-size:34px}h2{font-size:19px}button,input,select,textarea{font:inherit;color:inherit}.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:var(--surface);border-right:1px solid var(--line);padding:26px 16px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:11px;color:var(--text);font:700 19px Manrope;margin:0 10px 31px}.brand-mark{display:grid;place-items:center;width:31px;height:31px;background:var(--green);color:white;border-radius:9px;font-size:15px}.sidebar nav{display:grid;gap:4px}.sidebar nav a{display:flex;align-items:center;gap:12px;color:var(--muted);padding:9px 12px;border-radius:8px;font-weight:500}.sidebar nav a:hover,.sidebar nav a.active{color:var(--text);background:var(--surface-2)}.nav-icon{width:22px;text-align:center;font-weight:700}.sidebar-foot{margin-top:auto;color:var(--muted);font-size:12px;padding:10px}.status-dot{display:inline-block;width:7px;height:7px;background:#57a478;border-radius:50%;margin-right:7px}.main{margin-left:230px;min-height:100vh}.topbar{height:72px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 5vw;gap:16px;background:color-mix(in srgb,var(--bg) 88%,transparent);position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}.top-search{margin:auto;max-width:440px;width:100%;display:flex;align-items:center;gap:9px;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:7px 10px;color:var(--muted)}.top-search input{border:0;background:transparent;outline:0;flex:1}.top-search kbd,.keyboard-hint kbd{border:1px solid var(--line);background:var(--surface-2);border-radius:4px;padding:1px 6px;color:var(--muted)}.content{max-width:1400px;margin:auto;padding:42px 5vw 70px}.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:30px}.eyebrow{font-size:10px;letter-spacing:.15em;font-weight:700;color:var(--green);margin:0;text-transform:uppercase}.muted{color:var(--muted);margin:.25em 0}.button,.icon-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:8px 13px;cursor:pointer;color:var(--text);font-weight:600;white-space:nowrap}.button:hover,.icon-button:hover{border-color:var(--green)}.button.primary{background:var(--green);border-color:var(--green);color:white}.button.danger{color:#ad4635}.icon-button{width:34px;height:34px;padding:0}.menu-button{display:none}.actions{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}.metric,.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}.metric{padding:21px;display:flex;flex-direction:column;position:relative;overflow:hidden}.metric:before{content:"";position:absolute;width:4px;inset:0 auto 0 0;background:var(--line)}.metric.accent:before{background:var(--coral)}.metric.green:before{background:var(--green)}.metric span,.metric small{color:var(--muted)}.metric strong{font:700 30px Manrope;margin:6px 0}.panel{padding:25px}.panel-title{display:flex;align-items:start;justify-content:space-between;gap:16px}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(280px,.8fr);gap:18px;margin-bottom:18px}.plan-row{display:flex;justify-content:space-between;align-items:center;margin-top:22px}.plan-row div{display:flex;flex-direction:column}.plan-row span{color:var(--muted);font-size:12px}.progress{height:6px;background:var(--surface-2);border-radius:20px;overflow:hidden;margin:8px 0 17px}.progress i{height:100%;display:block;background:var(--green);border-radius:20px}.progress.coral i{background:var(--coral)}.focus-card{background:linear-gradient(145deg,var(--green-2),var(--surface))}.pill,.status{background:var(--surface-2);padding:4px 9px;border-radius:20px;color:var(--muted);font-size:11px;font-weight:600}.book-list{display:grid}.book-row{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);color:var(--text)}.book-row:last-child{border:0}.book-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:9px;background:var(--green-2);color:var(--green);font-weight:700}.book-icon.large{width:48px;height:48px}.book-info{display:flex;flex-direction:column;min-width:180px}.book-info small{color:var(--muted)}.book-progress{height:5px;flex:1;background:var(--surface-2);border-radius:10px;overflow:hidden}.book-progress i{display:block;height:100%;background:var(--green)}.filterbar{display:grid;grid-template-columns:2fr repeat(3,1fr) auto;gap:9px;margin-bottom:14px}.filterbar input,.filterbar select,input,select,textarea{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:9px 11px;width:100%;outline:0}.filterbar input:focus,input:focus,select:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px color-mix(in srgb,var(--green) 12%,transparent)}.table-wrap{overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:11px}.table-wrap table{width:100%;border-collapse:collapse;min-width:800px}.table-wrap th{text-align:left;font-size:11px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase;background:var(--surface-2)}.table-wrap th,.table-wrap td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}.table-wrap tr:last-child td{border-bottom:0}.table-wrap td small{display:block;color:var(--muted);max-width:240px}.meaning{max-width:360px}.word-link{font-weight:700;color:var(--text);font-size:15px}.status.learning{background:#fff1dc;color:#a3671f}.status.mastered{background:var(--green-2);color:var(--green)}.table-footer{display:flex;justify-content:space-between;align-items:center;padding:15px 0}.pagination{display:flex;align-items:center;gap:10px}.empty{text-align:center;color:var(--muted);padding:40px}.narrow{max-width:900px;margin:auto}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form-grid label{display:grid;gap:6px;font-weight:600}.form-grid .full{grid-column:1/-1}.form-grid fieldset{border:1px solid var(--line);border-radius:8px;display:flex;flex-wrap:wrap;gap:10px;padding:14px}.form-grid legend{color:var(--muted);font-size:12px}.check{display:flex!important;grid-auto-flow:column;align-items:center;gap:5px!important;font-weight:400!important}.check input{width:auto}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.book-card-top{display:flex;justify-content:space-between;align-items:start}.book-card .actions,.collection-card .actions{margin-top:20px}.book-stats{display:flex;gap:20px;border-top:1px solid var(--line);padding-top:15px;margin-top:20px}.book-stats span{display:flex;flex-direction:column;color:var(--muted);font-size:11px}.book-stats b{color:var(--text);font-size:16px}.collection-glyph{font-size:30px;color:var(--green)}dialog{border:1px solid var(--line);border-radius:13px;background:var(--surface);color:var(--text);box-shadow:var(--shadow);width:min(450px,90vw);padding:25px}dialog::backdrop{background:#101b14a8;backdrop-filter:blur(2px)}dialog form{display:grid;gap:15px}dialog label{display:grid;gap:5px}.study-shell{max-width:760px;margin:0 auto}.study-top{display:flex;align-items:center;gap:18px}.session-progress{height:5px;flex:1;background:var(--surface-2);border-radius:20px}.session-progress i{display:block;height:100%;width:0;background:var(--green)}.study-card{min-height:470px;margin-top:50px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;padding:60px;display:flex;flex-direction:column;align-items:center;text-align:center}.study-card h1{font-size:54px;margin-top:30px}.phonetic{font-size:20px;color:var(--muted)}.answer{width:100%;border-top:1px solid var(--line);margin-top:25px;padding-top:25px}.answer>p{font-size:20px}.example{background:var(--surface-2);border-radius:10px;padding:14px 18px;text-align:left}.example p{margin:0}.example small{color:var(--muted)}.study-actions{margin-top:auto;display:flex;gap:14px;width:100%;padding-top:25px}.study-actions .button{flex:1;padding:13px}.remembered{background:var(--green-2);color:var(--green);border-color:var(--green)}.forgotten{color:var(--coral);border-color:var(--coral)}.keyboard-hint{text-align:center;color:var(--muted);font-size:12px}.upload-panel{display:flex;min-height:330px;flex-direction:column;align-items:center;justify-content:center;gap:12px;border-style:dashed}.upload-icon,.success-mark{width:60px;height:60px;display:grid;place-items:center;border-radius:50%;background:var(--green-2);color:var(--green);font-size:26px}.upload-panel input{width:auto}.mapping-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.mapping-grid label{display:grid;gap:4px}.mapping-grid span{font-size:12px;color:var(--muted)}.result-card{max-width:750px;margin:70px auto;text-align:center;display:grid;justify-items:center;gap:14px}.result-grid{display:grid;grid-template-columns:repeat(4,1fr);width:100%;border:1px solid var(--line);border-radius:10px}.result-grid span{padding:18px;display:flex;flex-direction:column;color:var(--muted);border-right:1px solid var(--line)}.result-grid span:last-child{border:0}.result-grid b{font-size:24px;color:var(--text)}.chart{height:230px;display:flex;align-items:end;gap:5px;padding-top:30px}.chart i{flex:1;min-width:5px;background:var(--green);border-radius:4px 4px 0 0;position:relative}.chart i:hover:after{content:attr(data-label);position:absolute;bottom:100%;left:50%;transform:translateX(-50%);background:var(--text);color:var(--surface);padding:4px 7px;border-radius:5px;font-size:10px;white-space:nowrap}.stat-book{display:grid;grid-template-columns:120px 1fr 40px;gap:10px;align-items:center;margin:16px 0}.stat-book .progress{margin:0}.source-row{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:12px 0;border-bottom:1px solid var(--line)}.source-row>span:first-child{display:flex;flex-direction:column}.source-row small{color:var(--muted)}.flash{padding:12px 15px;border-radius:8px;margin-bottom:20px;background:var(--green-2);color:var(--green)}.flash.error{background:#fde9e4;color:#9b3f2e}
@media(max-width:1050px){.metric-grid{grid-template-columns:repeat(2,1fr)}.card-grid{grid-template-columns:repeat(2,1fr)}.filterbar{grid-template-columns:1fr 1fr}.filterbar input{grid-column:1/-1}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:none}.main{margin-left:0}.menu-button{display:inline-flex}.content{padding:28px 18px}.topbar{padding:0 18px}.page-head{align-items:flex-start;flex-direction:column}.metric-grid,.dashboard-grid,.card-grid,.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.metric-grid{grid-template-columns:1fr 1fr}.study-card{padding:35px 22px;min-height:430px}.study-card h1{font-size:40px}.mapping-grid{grid-template-columns:1fr 1fr}.result-grid{grid-template-columns:1fr 1fr}.result-grid span:nth-child(2){border-right:0}.result-grid span{border-bottom:1px solid var(--line)}.result-grid span:nth-child(n+3){border-bottom:0}.filterbar{grid-template-columns:1fr}.filterbar input{grid-column:auto}}
.login-page{min-height:100vh;background:linear-gradient(135deg,#173326 0%,#244e39 48%,var(--bg) 48%);display:grid;place-items:center;padding:24px}.login-shell{width:min(980px,100%);display:grid;grid-template-columns:1.1fr .9fr;background:var(--surface);border-radius:22px;overflow:hidden;box-shadow:0 25px 80px rgba(0,0,0,.25)}.login-intro{padding:65px;background:linear-gradient(145deg,#173326,#2c684c);color:#fff;display:flex;flex-direction:column;justify-content:center}.login-intro .brand-mark{background:#fff;color:#2c684c;margin-bottom:35px}.login-intro .eyebrow{color:#b8ddc7}.login-intro h1{font-size:45px;line-height:1.2;margin:12px 0}.login-intro>p:not(.eyebrow){color:#d2e5d9;max-width:430px}.login-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}.login-points span{padding:7px 11px;border:1px solid #ffffff3d;border-radius:20px;font-size:12px}.login-card{padding:65px 55px;display:flex;flex-direction:column;justify-content:center}.login-card h2{font-size:28px}.login-card form{display:grid;gap:17px;margin:28px 0 18px}.login-card label{display:grid;gap:7px;font-weight:600}.login-card input{padding:12px}.login-button{padding:12px;margin-top:5px}.login-card>small{color:var(--muted)}
.account-create{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:18px}.account-create-form{display:grid;grid-template-columns:minmax(160px,1fr) minmax(180px,1fr) minmax(130px,.7fr) auto;align-items:end;gap:12px;min-width:min(100%,760px)}.account-create-form label{display:grid;gap:5px;font-weight:600}.inline-form{display:flex;gap:8px;min-width:280px}.inline-form input{min-width:170px}.inline-form.role-form{min-width:230px}.role-form select{min-width:130px}.account-table button:disabled,.account-table select:disabled{opacity:.45;cursor:not-allowed}.account-table .actions{flex-wrap:nowrap}
@media(max-width:760px){.login-page{background:var(--bg);padding:0}.login-shell{display:block;border-radius:0;min-height:100vh}.login-intro{display:none}.login-card{padding:55px 25px;min-height:100vh}.account-create{display:block}.account-create-form{grid-template-columns:1fr;margin-top:20px;min-width:0}}