@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--bg-primary:#0a0a0a;--bg-secondary:#111;--bg-surface:#161616;--bg-surface-hover:#1c1c1c;--bg-surface-active:#222;--bg-elevated:#1a1a1a;--border:#2a2a2a;--border-light:#333;--text-primary:#fff;--text-secondary:#a0a0a0;--text-muted:#666;--accent:#e8461c;--accent-hover:#ff5a30;--accent-glow:#e8461c26;--accent-glow-strong:#e8461c4d;--success:#22c55e;--success-bg:#22c55e1a;--error:#ef4444;--error-bg:#ef44441a;--warning:#f59e0b;--warning-bg:#f59e0b1a;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-accent:0 4px 20px #e8461c40;--transition:.2s ease;--transition-slow:.4s ease;--sidebar-width:260px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6}#root{min-height:100vh}a{color:var(--accent);transition:color var(--transition);text-decoration:none}a:hover{color:var(--accent-hover)}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,textarea,select{outline:none;font-family:inherit}.app-layout{min-height:100vh;display:flex}.main-content{margin-left:var(--sidebar-width);flex:1;min-height:100vh;padding:32px 40px}@media (width<=768px){.main-content{margin-left:0;padding:70px 16px 20px}}.page-header{margin-bottom:32px}.page-header h1{letter-spacing:-.5px;margin-bottom:4px;font-size:28px;font-weight:700}.page-header p{color:var(--text-secondary);font-size:15px}.card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);transition:border-color var(--transition), box-shadow var(--transition);padding:24px}.card:hover{border-color:var(--border-light)}.card-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.card-header h2{letter-spacing:-.3px;font-size:18px;font-weight:600}.card-header .badge{background:var(--accent-glow);color:var(--accent);border-radius:20px;padding:4px 10px;font-size:12px;font-weight:600}.btn{border-radius:var(--radius-md);transition:all var(--transition);border:1px solid #0000;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:500;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);box-shadow:var(--shadow-accent);transform:translateY(-1px)}.btn-secondary{background:var(--bg-surface);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover{background:var(--bg-surface-hover);border-color:var(--border-light)}.btn-danger{background:var(--error-bg);color:var(--error);border-color:#ef444433}.btn-danger:hover{background:#ef444426;border-color:#ef444466}.btn-sm{padding:6px 12px;font-size:13px}.btn-icon{border-radius:var(--radius-sm);padding:8px}.input{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);width:100%;color:var(--text-primary);transition:border-color var(--transition), box-shadow var(--transition);padding:10px 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var(--border);border-top-color:var(--accent);border-radius:50%;width:36px;height:36px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.3s fadeIn}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.toast{border-radius:var(--radius-md);z-index:1000;padding:12px 20px;font-size:14px;font-weight:500;animation:.3s fadeIn;position:fixed;bottom:24px;right:24px}.toast-success{background:var(--success-bg);color:var(--success);border:1px solid #22c55e33}.toast-error{background:var(--error-bg);color:var(--error);border:1px solid #ef444433}.toast-info{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border)}@keyframes 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var(--border);border-radius:var(--radius-lg);text-align:center;cursor:pointer;transition:all var(--transition);flex-direction:column;justify-content:center;align-items:center;padding:48px 24px;display:flex}.upload-zone:hover{border-color:var(--accent);background:var(--accent-glow)}.upload-zone .upload-icon{opacity:.6;margin-bottom:12px;font-size:40px}.upload-zone h3{margin-bottom:4px;font-size:16px}.upload-zone p{color:var(--text-muted);font-size:13px}.chart-container{width:100%;height:300px;position:relative}.tabs{background:var(--bg-primary);border-radius:var(--radius-md);border:1px solid var(--border);gap:4px;padding:4px;display:flex}.tab{border-radius:var(--radius-sm);color:var(--text-muted);transition:all var(--transition);text-align:center;background:0 0;flex:1;padding:8px 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var(--border);justify-content:space-between;align-items:center;gap:12px;padding:16px;display:flex}.user-info{align-items:center;gap:10px;min-width:0;display:flex}.user-avatar{background:var(--accent-glow-strong);width:34px;height:34px;color:var(--accent);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:14px;font-weight:700;display:flex}.user-details{flex-direction:column;min-width:0;display:flex}.user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.user-role{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.logout-btn{border-radius:var(--radius-sm);width:34px;height:34px;color:var(--text-muted);transition:all var(--transition);background:0 0;flex-shrink:0;justify-content:center;align-items:center;display:flex}.logout-btn svg{width:18px;height:18px}.logout-btn:hover{background:var(--error-bg);color:var(--error)}@media (width<=768px){.sidebar{transform:translate(-100%)}}.sidebar-sub-nav{flex-direction:column;gap:4px;margin-top:4px;padding-left:24px;display:flex}.sub-link{padding:6px 12px;font-size:.85rem}.login-page{justify-content:center;align-items:center;min-height:100vh;display:flex;position:relative;overflow:hidden}.login-bg-pattern{background:radial-gradient(at 20%,#e8461c14 0%,#0000 60%),radial-gradient(at 80% 20%,#e8461c0d 0%,#0000 50%);position:absolute;inset:0}.login-container{text-align:center;width:100%;max-width:400px;padding:40px;position:relative}.login-logo{letter-spacing:-2px;margin-bottom:8px;font-size:48px;font-weight:800}.login-logo .logo-a{color:var(--accent)}.login-logo .logo-text{color:var(--text-primary)}.login-container 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1fr;gap:20px;display:grid}@media (width<=1024px){.dual-leaderboard{grid-template-columns:1fr}}.score-chart{width:100%;min-height:280px}.score-chart canvas{display:block}.competition-page .card{margin-bottom:20px}.upload-model-page .upload-msg{border-radius:var(--radius-md);margin-top:12px;padding:10px 14px;font-size:13px;font-weight:500}.upload-model-page .upload-msg.success{background:var(--success-bg);color:var(--success);border:1px solid #22c55e33}.upload-model-page .upload-msg.error{background:var(--error-bg);color:var(--error);border:1px solid #ef444433}.challenge-details{flex-direction:column;gap:24px;display:flex}.challenge-detail-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}@media (width<=768px){.challenge-detail-grid{grid-template-columns:1fr}}.challenge-detail-row{flex-direction:column;gap:4px;display:flex}.challenge-detail-label{text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);font-size:12px;font-weight:600}.challenge-detail-value{color:var(--text-secondary);font-size:15px;line-height:1.5}p.challenge-detail-value{margin:0}.challenge-format-list{flex-direction:column;gap:8px;margin-top:4px;display:flex}.challenge-format-item{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);align-items:center;gap:10px;padding:8px 14px;display:flex}.challenge-format-name{color:var(--text-primary);font-size:14px;font-weight:500}.challenge-format-range{color:var(--text-muted);font-size:13px}.download-data-button{gap:16px;display:flex}.btn-training-data,.btn-test-data{color:#fff;cursor:pointer;background-color:#000;border:1px solid #333;border-radius:12px;padding:12px 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0;display:flex}.member-row:last-child{border-bottom:none}.member-info{align-items:center;gap:12px;display:flex}.member-avatar{background:var(--accent-glow-strong);width:36px;height:36px;color:var(--accent);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:14px;font-weight:700;display:flex}.member-name{color:var(--text-primary);font-size:14px;font-weight:500}.member-email{color:var(--text-muted);font-size:12px}.teams-list{flex-direction:column;gap:12px;display:flex}.team-card{padding:0;overflow:hidden}.team-card-header{cursor:pointer;transition:background var(--transition);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.team-card-header:hover{background:var(--bg-surface-hover)}.team-card-info{align-items:center;gap:14px;display:flex}.team-card-avatar{border-radius:var(--radius-md);background:var(--accent-glow-strong);width:40px;height:40px;color:var(--accent);justify-content:center;align-items:center;font-size:18px;font-weight:700;display:flex}.team-card-info h3{margin-bottom:2px;font-size:15px;font-weight:600}.team-card-meta{color:var(--text-muted);font-size:12px}.team-card-actions{align-items:center;gap:8px;display:flex}.expand-icon{color:var(--text-muted);margin-left:4px;font-size:12px}.team-members-expanded{border-top:1px solid var(--border);padding:12px 20px}.member-row.inactive{opacity:.5}.member-input-row{align-items:center;gap:8px;margin-bottom:8px;display:flex}.member-input-row .input{flex:1}.codes-list{flex-direction:column;gap:12px;margin-top:12px;display:flex}.code-row{background:var(--bg-primary);border-radius:var(--radius-md);border:1px solid var(--border);justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.access-code{color:var(--accent);background:var(--accent-glow);border-radius:var(--radius-sm);padding:4px 10px;font-family:SF Mono,Fira Code,monospace;font-size:13px}@media (width<=768px){.team-card-header{flex-direction:column;align-items:flex-start;gap:12px}.team-card-actions{flex-wrap:wrap}}.admin-actions-bar{gap:12px;margin-bottom:20px;display:flex}.competitions-list{flex-direction:column;gap:12px;display:flex}.comp-card-top{justify-content:space-between;align-items:center;gap:20px;display:flex}.comp-card-title{align-items:center;gap:10px;display:flex}.comp-card-title h3{font-size:16px;font-weight:600}.comp-card-actions{flex-shrink:0;gap:8px;display:flex}.schema-row{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px;display:flex}.schema-row .input{flex:1}.schema-row select.input{max-width:200px}.schema-minmax{flex:none!important;max-width:100px!important}.file-upload-btn{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);align-items:center;gap:8px;padding:10px 14px;font-size:13px;display:flex}.file-upload-btn:hover{border-color:var(--accent);color:var(--text-primary)}.test-data-stats{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-secondary);margin-top:16px;padding:12px;font-size:13px;line-height:1.6}.form-hint{color:var(--text-muted);margin:-8px 0 16px;font-size:13px}