*{box-sizing:border-box}:root{--bg: #0a0a0a;--bg-grid: rgba(255, 255, 255, .02);--card: #141414;--card-hover: #1a1a1a;--border: #262626;--border-strong: #333;--text: #f5f5f5;--text-muted: #9ca3af;--text-dim: #6b7280;--primary: #3b82f6;--primary-hover: #2563eb;--primary-glow: rgba(59, 130, 246, .4);--danger: #ef4444;--success: #10b981;--warning: #f59e0b}html,body{margin:0;padding:0;height:100%;background:var(--bg);background-image:linear-gradient(var(--bg-grid) 1px,transparent 1px),linear-gradient(90deg,var(--bg-grid) 1px,transparent 1px);background-size:40px 40px;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Apple SD Gothic Neo,Pretendard,Malgun Gothic,sans-serif;font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:14px}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.app{max-width:1280px;margin:0 auto;padding:24px;min-height:100vh}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;padding:8px 0}.header .logo{display:flex;align-items:baseline;gap:10px}.header h1{margin:0;font-size:28px;font-weight:800;letter-spacing:-.5px}.header .accent{color:var(--primary)}.header .sub{color:var(--text-dim);font-size:13px}.header .right{display:flex;gap:12px;align-items:center}.tabs{display:flex;gap:4px;margin-bottom:28px;border-bottom:1px solid var(--border)}.tab{background:transparent;border:none;padding:12px 20px;border-bottom:2px solid transparent;color:var(--text-muted);font-size:14px;font-weight:500;transition:all .15s;margin-bottom:-1px}.tab:hover{color:var(--text)}.tab.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:700}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:20px;transition:border-color .15s}.row{display:flex;gap:16px}.grow{flex:1}textarea,input[type=text],input[type=password],input[type=number]{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;background:#0d0d0d;color:var(--text);transition:border-color .15s,box-shadow .15s}textarea:focus,input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}textarea{resize:vertical;font-family:JetBrains Mono,D2Coding,Consolas,monospace;font-size:13px;line-height:1.6}::placeholder{color:var(--text-dim)}.btn{background:var(--primary);color:#fff;border:none;padding:11px 22px;border-radius:8px;font-weight:600;font-size:14px;transition:all .15s}.btn:hover{background:var(--primary-hover);box-shadow:0 0 0 4px var(--primary-glow)}.btn:disabled{background:#2a2a2a;color:var(--text-dim);cursor:not-allowed;box-shadow:none}.btn.secondary{background:var(--card);color:var(--text);border:1px solid var(--border)}.btn.secondary:hover{background:var(--card-hover);border-color:var(--border-strong);box-shadow:none}.btn.danger{background:var(--danger)}.label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:8px;font-weight:500;letter-spacing:.3px;text-transform:uppercase}.metric-row{display:flex;gap:12px;margin-bottom:20px;flex-wrap:wrap}.metric{flex:1;min-width:140px;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:16px 18px}.metric .v{font-size:26px;font-weight:800;letter-spacing:-.5px;line-height:1.2}.metric .l{color:var(--text-muted);font-size:12px;margin-top:4px}table{width:100%;border-collapse:collapse;background:var(--card);font-size:13px}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);vertical-align:top}th{background:#0d0d0d;font-weight:600;font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border-strong)}tr:hover td{background:var(--card-hover)}td a{color:var(--primary)}.grade{display:inline-block;padding:3px 10px;border-radius:6px;color:#fff;font-weight:700;font-size:12px;white-space:nowrap}.grade-A{background:var(--success)}.grade-B{background:var(--primary)}.grade-C{background:var(--warning)}.grade-D{background:var(--danger)}.grade-Q{background:var(--text-dim)}.tier-badge{display:inline-block;padding:3px 10px;border-radius:6px;color:#fff;font-weight:700;font-size:11px;white-space:nowrap;letter-spacing:.2px}.rec{display:inline-block;padding:2px 8px;border-radius:5px;font-size:11px;font-weight:600}.rec-strong{background:var(--success);color:#fff}.rec-good{background:var(--primary);color:#fff}.rec-ok{background:var(--warning);color:#fff}.rec-hold{background:var(--danger);color:#fff}.rec-bad{background:#404040;color:var(--text-muted)}.diff-easy{color:var(--success);font-weight:700}.diff-medium{color:var(--warning);font-weight:700}.diff-hard{color:var(--danger);font-weight:700}.diff-very_hard{background:var(--danger);color:#fff;padding:3px 10px;border-radius:6px;font-weight:700;font-size:11px}.progress{display:inline-block;width:80px;height:6px;background:#1a1a1a;border-radius:3px;overflow:hidden;vertical-align:middle;margin-right:8px}.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#60a5fa)}.status{color:var(--text-muted);font-size:13px;margin:8px 0}.error{color:var(--danger);font-size:13px}.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;background:#1f1f1f;color:var(--text);margin-right:4px;margin-bottom:2px;border:1px solid var(--border)}.tag.danger{background:#ef444426;color:var(--danger);border-color:#ef44444d}.tag.ok{background:#10b98126;color:var(--success);border-color:#10b9814d}.checkbox-row{display:flex;gap:8px;align-items:center;margin:10px 0;font-size:13px;color:var(--text-muted)}.checkbox-row label{cursor:pointer}.checkbox-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--primary);cursor:pointer}.login{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px;flex-direction:column}.login .logo-big{font-size:64px;font-weight:900;letter-spacing:-2px;margin-bottom:8px;text-align:center}.login .logo-big .accent{color:var(--primary);margin-left:12px}.login .tagline{color:var(--text-muted);font-size:14px;margin-bottom:40px;text-align:center}.login .card{width:100%;max-width:380px;padding:32px}.login h2{margin:0 0 6px;font-size:18px;font-weight:700}.login .login-sub{color:var(--text-muted);font-size:13px;margin-bottom:20px}.footer{text-align:center;padding:32px 16px;color:var(--text-dim);font-size:12px;border-top:1px solid var(--border);margin-top:48px}.footer a{color:var(--text-muted);margin:0 8px}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:#2a2a2a;border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#3a3a3a}