*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0f1117;--bg-card: #1a1d27;--bg-input: #242836;--bg-hover: #2a2e3d;--border: #2e3348;--text: #e4e6ef;--text-muted: #6b7194;--primary: #25D366;--primary-hover: #1eba57;--primary-bg: rgba(37, 211, 102, .1);--blue: #4a9eff;--blue-bg: rgba(74, 158, 255, .1);--orange: #ff8c42;--orange-bg: rgba(255, 140, 66, .1);--purple: #a78bfa;--purple-bg: rgba(167, 139, 250, .1);--red: #ef4444;--red-bg: rgba(239, 68, 68, .1);--green: #25D366;--green-bg: rgba(37, 211, 102, .1);--radius: 10px;--radius-sm: 6px;--shadow: 0 4px 24px rgba(0,0,0,.3);--sidebar-w: 240px;--transition: .2s ease}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.app{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);background:var(--bg-card);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;height:100vh;z-index:100}.sidebar-header{padding:20px;border-bottom:1px solid var(--border)}.logo{display:flex;align-items:center;gap:10px;color:var(--primary);font-weight:700;font-size:16px}.sidebar-nav{flex:1;padding:12px;display:flex;flex-direction:column;gap:4px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 14px;border:none;background:transparent;color:var(--text-muted);font-size:14px;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);text-align:left;width:100%}.nav-item:hover{background:var(--bg-hover);color:var(--text)}.nav-item.active{background:var(--primary-bg);color:var(--primary)}.sidebar-footer{padding:16px;border-top:1px solid var(--border)}.api-key-section label{display:block;font-size:11px;color:var(--text-muted);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}.api-key-section input{width:100%;padding:8px 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var(--border);border-radius:var(--radius);padding:18px;display:flex;align-items:center;gap:14px}.stat-icon{width:44px;height:44px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;flex-shrink:0}.stat-icon.green{background:var(--green-bg);color:var(--green)}.stat-icon.blue{background:var(--blue-bg);color:var(--blue)}.stat-icon.orange{background:var(--orange-bg);color:var(--orange)}.stat-icon.purple{background:var(--purple-bg);color:var(--purple)}.stat-info{display:flex;flex-direction:column}.stat-value{font-size:24px;font-weight:700;line-height:1}.stat-label{font-size:12px;color:var(--text-muted);margin-top:4px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}.card h2{font-size:15px;font-weight:600;margin-bottom:14px}.sessions-grid{display:grid;gap:12px}.session-card{background:var(--bg-card);border:1px solid 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4px;cursor:pointer;text-align:center;font-weight:600;font-size:13px;background:none;color:var(--text);transition:var(--transition)}.credit-amount-btn:hover,.credit-amount-btn.active{border-color:var(--green);background:var(--green-bg);color:var(--green)}.warmup-toggle-row{flex-direction:column;align-items:flex-start;gap:8px}.warmup-toggle-row>.toggle-switch{align-self:flex-end;margin-top:-32px}.warmup-toggle-label{display:flex;flex-direction:column;gap:4px}.warmup-info{margin-top:6px;padding:8px 12px;background:#ff8c421a;border:1px solid rgba(255,140,66,.3);border-radius:8px;font-size:12px;color:var(--orange);line-height:1.5}.warmup-badge{display:inline-block;font-size:11px;padding:2px 8px;background:#ff8c421f;border:1px solid rgba(255,140,66,.3);border-radius:12px;color:var(--orange);margin-left:6px}@media(max-width:768px){.sidebar{width:60px;overflow:hidden}.sidebar-header{padding:16px 10px}.logo span,.nav-item span{display:none}.nav-item{justify-content:center;padding:12px}.sidebar-footer{display:none}.main{margin-left:60px;padding:20px 16px}.stats-grid{grid-template-columns:repeat(2,1fr)}}