*{margin:0;padding:0;box-sizing:border-box}
:root{--ink:#1e1a14;--paper:#FFFEF6;--yellow:#FFC107;--line:#E8E0C8}
body{font-family:'Inter',system-ui,'Segoe UI',sans-serif;background:#1a1611;color:var(--ink);display:flex;justify-content:center;padding:20px 10px;min-height:100vh}
.shell{width:100%;max-width:920px;background:var(--paper);background-image:radial-gradient(#e8ddc3 .6px,transparent .6px);background-size:22px 22px;border-radius:22px;overflow:hidden;border:3px solid var(--ink);box-shadow:0 30px 80px rgba(0,0,0,.55)}
.topbar{background:var(--ink);color:#fff;display:flex;justify-content:space-between;align-items:center;padding:10px 20px;font-size:12px;font-weight:800;letter-spacing:.12em;flex-wrap:wrap;gap:8px}
.topbar .pill{background:var(--yellow);color:var(--ink);padding:4px 12px;border-radius:100px;white-space:nowrap}
.authbtn{background:#fff;color:var(--ink);border:2px solid #fff;border-radius:100px;padding:5px 12px;font-weight:800;font-size:12px;cursor:pointer;font-family:inherit;white-space:nowrap}
.authbtn:disabled{opacity:.6;cursor:wait}
.authbtn.ghost{background:transparent;color:#fff;border-color:#666}
.userchip{display:inline-flex;align-items:center;gap:8px;background:#2b2b2b;border-radius:100px;padding:3px 10px 3px 3px;font-size:12px}
.userchip img{width:24px;height:24px;border-radius:50%;background:#fff}
.hero{padding:26px 24px 16px;text-align:center;border-bottom:3px dashed #d8c9a3}
.hero h1{font-weight:900;font-size:clamp(26px,5vw,44px);line-height:1;letter-spacing:-.02em}
.hero h1 em{font-style:normal;background:linear-gradient(180deg,transparent 62%,var(--yellow) 62%,var(--yellow) 92%,transparent 92%)}
.subtitle{display:inline-block;margin-top:10px;background:#fff;border:2px solid var(--ink);border-radius:100px;padding:7px 16px;font-weight:700;font-size:13px;box-shadow:3px 3px 0 var(--ink)}
.searchrow{display:flex;gap:10px;margin:14px 20px 0;flex-wrap:wrap}
.searchrow input{flex:1;min-width:200px;border:2.5px solid var(--ink);border-radius:12px;padding:10px 14px;font-size:14px;font-family:inherit;background:#fff}
.searchrow input:focus{outline:3px solid var(--yellow)}
.progress{margin:12px 20px 0;background:#fff;border:2px solid var(--ink);border-radius:12px;padding:10px 14px;font-size:13px;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.progress .bar{height:10px;background:#eee;border-radius:100px;overflow:hidden;flex:1;margin:0 12px;border:1px solid var(--ink)}
.progress .bar i{display:block;height:100%;background:linear-gradient(90deg,#2E7D32,#66BB6A);width:0%}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:16px 20px 20px}
.card{background:#fff;border:2.5px solid var(--ink);border-radius:16px;overflow:hidden;box-shadow:5px 5px 0 rgba(30,26,20,.9);display:flex;flex-direction:column;transition:transform .15s}
.card:hover{transform:translateY(-2px)}
.card.ready{cursor:pointer}
.card.soon{opacity:.75;border-style:dashed;box-shadow:none}
.card-head{padding:12px 14px;color:#fff;display:flex;align-items:center;gap:10px}
.card-head.c1{background:linear-gradient(135deg,#1B5E20,#2E7D32)}
.card-head.c2{background:linear-gradient(135deg,#BF360C,#EF6C00)}
.card-head.c3{background:linear-gradient(135deg,#0D47A1,#1976D2)}
.card-head.c4{background:linear-gradient(135deg,#4A148C,#7B1FA2)}
.card-head.c5{background:linear-gradient(135deg,#00695C,#00897B)}
.card-head.c6{background:linear-gradient(135deg,#3E2723,#795548)}
.card-head.c7{background:linear-gradient(135deg,#263238,#455A64)}
.card-head .ico{width:44px;height:44px;background:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.card-head h2{font-size:15px;line-height:1.2}
.card-head h2 span{display:block;font-size:11px;letter-spacing:.1em;opacity:.9}
.badge{margin-left:auto;background:var(--yellow);color:var(--ink);font-weight:900;font-size:13px;padding:4px 10px;border-radius:10px;border:2px solid var(--ink);white-space:nowrap}
.card-body{padding:12px 14px;font-size:13px;line-height:1.5;flex:1}
.status{margin:0 14px 14px;font-size:12px;font-weight:800;text-align:center;border-radius:10px;padding:8px}
.status.go{background:var(--ink);color:var(--yellow)}
.status.wait{background:#eee;color:#666;border:1.5px dashed #999}
.sheet{margin:0 20px 14px;background:#fff;border:2.5px solid var(--ink);border-radius:16px;overflow:hidden;box-shadow:5px 5px 0 rgba(30,26,20,.9)}
.sheet-head{padding:14px 16px;color:#fff;display:flex;align-items:center;gap:12px}
.sheet-body{padding:14px 16px}
.meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.meta div{font-size:12.5px;background:#FFF8E1;border:1.5px solid var(--ink);border-radius:100px;padding:5px 11px}
.issue{background:#FFF3E0;border:2px dashed #BF360C;border-radius:12px;padding:10px 12px;font-size:14px;margin-bottom:10px}
.issue b.lb{background:var(--ink);color:#fff;padding:2px 8px;border-radius:6px;font-size:11px;letter-spacing:.08em;margin-right:6px}
ul.pts{list-style:none;display:flex;flex-direction:column;gap:7px}
ul.pts li{font-size:13.5px;background:#FAFAF7;border:1px solid var(--line);border-radius:10px;padding:7px 10px 7px 30px;position:relative}
ul.pts li::before{content:'▸';position:absolute;left:10px;top:7px;font-weight:900;color:#2E7D32}
mark{background:#FFEB3B;padding:1px 6px;border-radius:6px;font-weight:800;color:var(--ink);border:1px solid rgba(0,0,0,.15)}
.import{background:#E8F5E9;border:1.5px solid #2E7D32;border-radius:12px;padding:10px 12px;font-size:13px;margin-top:10px}
.memory{margin-top:10px;background:var(--ink);color:var(--yellow);font-weight:800;font-size:14px;border-radius:12px;padding:9px;text-align:center}
.tablewrap{margin:0 20px 14px;background:#fff;border:2.5px solid var(--ink);border-radius:14px;overflow:hidden}
.tablewrap h3,.quizbox h3,.recallbox h3{padding:11px 14px;font-size:13px;letter-spacing:.08em;background:var(--ink);color:#fff}
table{width:100%;border-collapse:collapse;font-size:13px}
th{background:var(--yellow);font-size:11px;padding:8px;border-bottom:2px solid var(--ink)}
td{padding:8px;border-bottom:1px solid var(--line);text-align:center}
td:first-child{font-weight:800;text-align:left}
.recallbox{margin:0 20px 12px;background:linear-gradient(135deg,#1e1a14,#3E2723);border-radius:14px;padding:12px;color:#fff;border:2.5px solid var(--ink)}
.recallbox .row{display:flex;gap:8px;flex-wrap:wrap}
.recallbox .ri{flex:1;min-width:150px;background:#fff;color:var(--ink);border-radius:10px;padding:9px;text-align:center;font-weight:800;font-size:12px}
.examtrick{margin:0 20px 18px;background:var(--yellow);border:2.5px solid var(--ink);border-radius:12px;padding:11px;text-align:center;box-shadow:4px 4px 0 var(--ink);font-weight:800;font-size:14px}
.quizbox{margin:0 20px 18px;background:#fff;border:2.5px solid var(--ink);border-radius:14px;overflow:hidden}
.q{padding:14px;border-bottom:1px solid var(--line)}
.q:last-child{border:none}
.q p{font-weight:700;font-size:14px;margin-bottom:8px}
.q button{display:block;width:100%;text-align:left;margin:6px 0;padding:9px 12px;border-radius:10px;border:1.5px solid var(--ink);background:#FAFAF7;font-size:13px;cursor:pointer;font-family:inherit}
.q button:hover{background:#FFF8E1}
.q button.correct{background:#C8E6C9;border-color:#2E7D32;font-weight:800}
.q button.wrong{background:#FFCDD2;border-color:#C62828}
.q .exp{font-size:12px;background:#FFFDE7;border-radius:8px;padding:7px 9px;margin-top:6px;display:none}
.back{display:inline-block;margin:14px 20px 0;background:#fff;border:2px solid var(--ink);border-radius:100px;padding:7px 14px;font-weight:700;font-size:13px;text-decoration:none;color:var(--ink);box-shadow:3px 3px 0 var(--ink)}
.loading,.empty,.error{margin:16px 20px;padding:16px;background:#fff;border:2px dashed var(--ink);border-radius:12px;text-align:center;font-size:14px;font-weight:600}
.footer{text-align:center;padding:0 20px 18px;font-size:11px;color:#6D5D3F;font-weight:600}
.flash{display:flex;gap:10px;overflow-x:auto;padding:12px 14px}
.fcard{min-width:220px;background:#FFFEF6;border:2px solid var(--ink);border-radius:12px;padding:14px;text-align:center;cursor:pointer;font-weight:700;font-size:13px}
.imgwrap{margin:0 20px 14px;background:#fff;border:2.5px solid var(--ink);border-radius:14px;overflow:hidden;box-shadow:5px 5px 0 rgba(30,26,20,.9)}
.imgwrap h3{padding:11px 14px;font-size:13px;letter-spacing:.08em;background:var(--ink);color:#fff}
.imgwrap img{width:100%;height:auto;display:block;background:#fff}
.imgwrap p{padding:10px 14px;font-size:12.5px;line-height:1.5}
.blueprint{margin:0 20px 16px;background:#fff;border:2.5px solid var(--ink);border-radius:14px;overflow:hidden}
.blueprint summary{cursor:pointer;padding:12px 14px;font-weight:800;font-size:14px;background:var(--yellow);list-style:none}
@media(max-width:700px){.grid{grid-template-columns:1fr 1fr}body{padding:10px 6px}}
@media(max-width:480px){.grid{grid-template-columns:1fr}.searchrow,.progress,.sheet,.tablewrap,.recallbox,.examtrick,.quizbox{margin-left:12px;margin-right:12px}}
@media print{body{background:#fff;padding:0}.shell{border:none;box-shadow:none;border-radius:0}.quizbox,.searchrow,.back{display:none}}