:root{--color-bg:#fff;--color-bg-elevated:#f8f9fa;--color-bg-surface:#fff;--color-bg-hover:#f3f4f6;--color-border:#e5e7eb;--color-border-subtle:#f3f4f6;--color-text-primary:#111827;--color-text-secondary:#6b7280;--color-text-tertiary:#9ca3af;--color-accent:#4f46e5;--color-accent-hover:#4338ca;--color-accent-light:#eef2ff;--color-success:#10b981;--color-success-bg:#d1fae5;--color-warning:#f59e0b;--color-warning-bg:#fef3c7;--color-error:#ef4444;--color-error-bg:#fee2e2;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--sidebar-width:240px;--header-height:56px;--shadow-sm:0 1px 2px #0000000a;--shadow-md:0 4px 12px #0000000f;--shadow-lg:0 8px 24px #00000014;--shadow-xl:0 12px 32px #0000001f}@media (prefers-color-scheme:dark){:root{--color-bg:#0f1115;--color-bg-elevated:#1a1d23;--color-bg-surface:#1f2329;--color-bg-hover:#2d333b;--color-border:#2d333b;--color-border-subtle:#21262d;--color-text-primary:#e6edf3;--color-text-secondary:#8b949e;--color-text-tertiary:#6e7681;--color-accent-light:#4f46e526;--color-success-bg:#10b98126;--color-warning-bg:#f59e0b26;--color-error-bg:#ef444426}}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;color:var(--color-text-primary);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit;font-size:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-text-tertiary)}.project-card:hover .project-delete-btn{opacity:1!important}.mobile-menu-toggle{z-index:200;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-elevated);width:40px;height:40px;color:var(--color-text-primary);box-shadow:var(--shadow-md);justify-content:center;align-items:center;display:none;position:fixed;top:12px;left:12px}.mobile-overlay{display:none}@media (width<=768px){.mobile-menu-toggle{display:flex}.sidebar-wrapper{z-index:150;transition:transform .3s;position:fixed;top:0;left:0;transform:translate(-100%)}.sidebar-wrapper.open{transform:translate(0)}.mobile-overlay{z-index:140;background:#00000080;display:block;position:fixed;inset:0}.main-content{padding-top:56px;margin-left:0!important}}@keyframes slideIn{0%{opacity:0;transform:translate(10px)}to{opacity:1;transform:translate(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.quota-bar{border-top:1px solid var(--color-border);padding:12px 16px}.quota-bar-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.quota-badge{border-radius:999px;padding:2px 8px;font-size:11px;font-weight:600}.quota-badge.free{color:#9ca3af;background:#9ca3af26}.quota-badge.pro{color:#f59e0b;background:#f59e0b26}.quota-balance{color:var(--color-text-primary);font-size:14px;font-weight:700}.quota-bar-track{background:var(--color-bg-primary);border-radius:2px;height:4px;margin-bottom:6px;overflow:hidden}.quota-bar-fill{background:linear-gradient(90deg, var(--color-accent), #818cf8);border-radius:2px;height:100%;transition:width .3s}.quota-bar-hint{color:var(--color-text-tertiary);font-size:11px}.auth-page{background:linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 50%, var(--color-bg-primary) 100%);justify-content:center;align-items:center;min-height:100vh;padding:16px;display:flex}.auth-container{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-xl);width:100%;max-width:420px;box-shadow:var(--shadow-xl);padding:40px 32px;animation:.4s authFadeIn}@keyframes authFadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.auth-header{text-align:center;margin-bottom:32px}.auth-logo{justify-content:center;align-items:center;gap:8px;margin-bottom:20px;display:flex}.auth-logo-icon{font-size:28px}.auth-logo-text{color:var(--color-text-primary);letter-spacing:-.5px;font-size:22px;font-weight:700}.auth-title{color:var(--color-text-primary);margin:0 0 8px;font-size:24px;font-weight:700}.auth-subtitle{color:var(--color-text-secondary);margin:0;font-size:14px}.auth-form{flex-direction:column;gap:20px;display:flex}.auth-field{flex-direction:column;gap:6px;display:flex}.auth-label{color:var(--color-text-secondary);font-size:13px;font-weight:600}.auth-input{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-primary);height:44px;color:var(--color-text-primary);outline:none;padding:0 14px;font-size:14px;transition:border-color .2s,box-shadow .2s}.auth-input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px #6366f126}.auth-input::placeholder{color:var(--color-text-tertiary)}.auth-submit{border-radius:var(--radius-md);background:var(--color-accent);color:#fff;cursor:pointer;border:none;height:46px;margin-top:4px;font-size:15px;font-weight:600;transition:background .2s,transform .1s}.auth-submit:hover:not(:disabled){background:var(--color-accent-hover);transform:translateY(-1px)}.auth-submit:active:not(:disabled){transform:translateY(0)}.auth-submit:disabled{opacity:.6;cursor:not-allowed}.auth-footer{text-align:center;color:var(--color-text-secondary);margin-top:24px;font-size:13px}.auth-link{color:var(--color-accent);margin-left:4px;font-weight:600;text-decoration:none;transition:color .2s}.auth-link:hover{color:var(--color-accent-hover);text-decoration:underline}@media (width<=480px){.auth-container{border-radius:var(--radius-lg);padding:28px 20px}.auth-title{font-size:20px}.auth-input{height:48px;font-size:16px}.auth-submit{height:50px;font-size:16px}}