*{box-sizing:border-box} :root{color-scheme:light dark;--bg:#fff;--fg:#242925;--muted:#69716b;--line:#dce1dd;--soft:#f5f7f5;--accent:#35634a;--on-accent:#fff;--danger:#a63131}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button,a{ -webkit-tap-highlight-color:transparent}a{color:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}button,.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--fg);text-decoration:none;font-weight:600}button:hover,.button:hover{background:var(--soft)}button.primary,.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}button.primary:hover,.primary:hover{filter:brightness(.92)}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}h1,h2,h3,p{margin:0}h1{font-size:26px;line-height:1.25;letter-spacing:-.6px;font-weight:600}h2{font-size:18px;font-weight:600;letter-spacing:-.2px}h3{font-size:16px;font-weight:600}.small,.eyebrow,.meta{font-size:14px;color:var(--muted)}.muted{color:var(--muted)}.top{max-width:920px;margin:auto;padding:20px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:18px;letter-spacing:-.4px;font-weight:600;text-decoration:none}main{max-width:920px;margin:28px auto 110px;padding:0 32px;min-height:55vh}nav{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);display:flex;background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:6px;z-index:10}nav a{min-width:112px;min-height:46px;text-align:center;padding:10px 16px;text-decoration:none;font-size:14px;font-weight:600;border-radius:9px;color:var(--muted)}nav a[aria-current]{background:var(--soft);color:var(--accent)}[hidden]{display:none!important}.page-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}.page-head p{margin-top:5px;color:var(--muted);font-size:14px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);margin:24px 0 28px;padding:0 0 24px;border-bottom:1px solid var(--line)}.metric strong{display:block;font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}.metric span{font-size:14px;color:var(--muted)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:4px}.section-head a{font-size:14px;text-underline-offset:4px}.question-row{display:flex;gap:12px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line);cursor:pointer;outline-offset:3px}.question-row:hover .row-title{text-decoration:underline;text-underline-offset:4px}.row-body{min-width:0;flex:1}.row-title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.row-excerpt{font-size:14px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:3px}.row-arrow{color:var(--muted)}.thumb{width:56px;height:56px;object-fit:cover;border-radius:6px;border:1px solid var(--line)}.empty{padding:32px 0;text-align:center}.empty h2{margin-bottom:8px}.empty p{color:var(--muted);max-width:410px;margin:0 auto 24px}.filters{display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px;margin-bottom:12px}label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}input:not([type=checkbox]),select,textarea{width:100%;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);padding:11px 12px;min-height:46px}textarea{resize:vertical;min-height:110px}input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}.field{margin-bottom:18px}.field .small{margin-top:7px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form{max-width:620px}.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:24px}.error{color:var(--danger);font-size:14px;margin:14px 0}.danger{color:var(--danger)}.text-button{border:0;padding:8px 0;min-height:44px;background:transparent;font-size:14px}.login{max-width:360px;margin:48px auto}.login h1{margin-bottom:24px}.login button{width:100%}.upload{border:1px solid var(--line);padding:16px;border-radius:9px;background:var(--soft)}.upload input{padding:0;border:none!important;font-size:14px;min-height:44px!important;background:transparent}.preview{max-width:100%;max-height:200px;margin-top:16px;border-radius:6px}.study-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;gap:12px}.progress{height:3px;background:var(--line);margin-bottom:32px;overflow:hidden}.progress span{display:block;height:100%;background:var(--accent);transition:width .35s ease}.question-image{display:block;border:1px solid var(--line);border-radius:9px;padding:0;overflow:hidden;margin:20px 0;background:var(--bg);max-width:100%}.question-image img{display:block;max-width:100%;max-height:400px;object-fit:contain}.question-text{white-space:pre-wrap;overflow-wrap:anywhere;margin:20px 0;line-height:1.8}.answer{border-left:3px solid var(--accent);padding:0 0 0 20px;margin:30px 0}.answer p{white-space:pre-wrap;overflow-wrap:anywhere;margin-top:10px}.ratings{display:flex;gap:12px;margin-top:28px}.ratings button{flex:1;flex-direction:column;font-size:16px}.ratings span{font-size:14px;font-weight:400}.settings-section{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--line);max-width:620px}.settings-section h2{margin-bottom:16px}.settings-section p{color:var(--muted);margin-bottom:16px}.settings-section details{margin-top:12px}.settings-section summary{cursor:pointer;min-height:44px}.settings-section details p{font-size:14px;margin-top:12px}dialog{background:var(--bg);color:var(--fg);border:1px solid var(--line);border-radius:12px;padding:28px;max-width:min(90vw,500px)}dialog::backdrop{background:#0008}dialog p{margin-top:12px;color:var(--muted)}dialog.image-dialog{max-width:95vw;max-height:95dvh;padding:12px}dialog img{display:block;max-width:100%;max-height:75dvh;object-fit:contain}.toast{position:fixed;bottom:110px;left:50%;transform:translateX(-50%);border:1px solid var(--line);background:var(--fg);color:var(--bg);padding:12px 22px;border-radius:9px;z-index:30;width:max-content;max-width:90vw;font-size:14px}.offline{padding:10px 20px;background:var(--soft);text-align:center;font-size:14px;border-bottom:1px solid var(--line)}.loading{padding:50px 0;color:var(--muted)}.attachment-hint{margin:12px 0}.back{margin-bottom:25px}.checkline{display:flex;gap:10px;align-items:center;min-height:44px;font-weight:400}.checkline input{width:18px;height:18px;accent-color:var(--accent)}.daily{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px;border:1px solid var(--line);border-radius:10px;background:var(--soft)}.daily p{font-size:14px;color:var(--muted);margin-top:4px}input[type=file]::file-selector-button{font:inherit;font-weight:600;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:7px;min-height:44px;padding:8px 12px;margin-right:12px;cursor:pointer}.upload input:focus-visible{outline-offset:4px}nav a:hover{color:var(--fg)}@media(prefers-color-scheme:dark){:root{--bg:#141615;--fg:#edf0ed;--muted:#a4aea6;--line:#363d37;--soft:#202621;--accent:#9bc5a8;--on-accent:#14291b;--danger:#f3a1a1}}@media(max-width:600px){.top{padding:16px 20px}main{margin:24px auto 100px;padding:0 20px}.page-head{margin-bottom:20px}.page-head .button{font-size:14px;padding:8px 12px}.daily{align-items:flex-start;flex-direction:column;gap:16px}.daily .primary{width:100%}.metric span{font-size:12px}nav{bottom:0;left:0;transform:none;width:100%;border-radius:0;border-width:1px 0 0;padding:6px 6px calc(6px + env(safe-area-inset-bottom))}nav a{flex:1;min-width:0;padding:12px 6px}.filters{grid-template-columns:1fr 1fr}.filters .search{grid-column:1/-1}.two-col{gap:12px}.ratings{gap:8px}.ratings button{padding:10px 6px}.login{margin:32px auto}.toast{bottom:calc(85px + env(safe-area-inset-bottom))}.study-top{margin-bottom:20px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}