:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #0f172a;--color-text-muted: #64748b;--color-primary: #1a56db;--color-primary-hover: #1e40af;--color-primary-light: #dbeafe;--color-success: #16a34a;--color-success-light: #dcfce7;--color-warning: #d97706;--color-warning-light: #fef3c7;--color-danger: #dc2626;--color-danger-light: #fee2e2;--color-info: #0891b2;--color-info-light: #cffafe;--color-neutral: #64748b;--color-neutral-light: #f1f5f9;--radius: 8px;--radius-sm: 4px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1), 0 2px 4px rgba(0, 0, 0, .06);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;--font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:inherit}.loading-screen{display:flex;align-items:center;justify-content:center;height:100vh}.spinner{width:32px;height:32px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-bg);padding:16px}.auth-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow-md);padding:32px;width:100%;max-width:400px}.auth-card h1{font-size:20px;font-weight:600;margin-bottom:4px}.auth-card .auth-subtitle{color:var(--color-text-muted);font-size:13px;margin-bottom:24px}.login-mode-toggle{display:flex;gap:4px;margin-bottom:20px;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:3px}.login-mode-toggle button{flex:1;padding:6px 12px;border:none;border-radius:calc(var(--radius-sm) - 2px);background:transparent;color:var(--color-text-muted);font-size:13px;font-weight:500;cursor:pointer;transition:background .15s,color .15s}.login-mode-toggle button.active{background:var(--color-surface);color:var(--color-text);box-shadow:0 1px 2px #0000001a}.auth-info{color:var(--color-text-muted);font-size:13px;line-height:1.6;margin:16px 0 24px}.auth-form{display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:13px;font-weight:500;color:var(--color-text)}.form-group input,.form-group select,.form-group textarea{padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);transition:border-color .15s,box-shadow .15s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border:1px solid transparent;border-radius:var(--radius-sm);font-size:14px;font-weight:500;transition:background .15s,border-color .15s,color .15s}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:var(--color-neutral-light)}.btn-sm{padding:4px 10px;font-size:12px}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:#b91c1c}.alert{padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;border:1px solid transparent}.alert-error{background:var(--color-danger-light);border-color:#fecaca;color:#991b1b}.alert-info{background:var(--color-info-light);border-color:#a5f3fc;color:#155e75}.app-layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--color-surface);border-right:1px solid var(--color-border);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{padding:20px 16px;border-bottom:1px solid var(--color-border)}.sidebar-header .brand{font-size:15px;font-weight:600;color:var(--color-text);display:flex;align-items:center;gap:8px}.sidebar-header .brand-sub{font-size:12px;color:var(--color-text-muted);margin-top:2px}.sidebar-nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:2px}.nav-link{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-sm);color:var(--color-text-muted);font-size:14px;font-weight:500;text-decoration:none;transition:background .15s,color .15s}.nav-link:hover{background:var(--color-neutral-light);color:var(--color-text);text-decoration:none}.nav-link.active{background:var(--color-primary-light);color:var(--color-primary)}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--color-border);font-size:12px;color:var(--color-text-muted)}.sidebar-footer .user-email{font-weight:500;color:var(--color-text);word-break:break-all}.sidebar-footer .logout-btn{margin-top:8px;background:none;border:none;color:var(--color-text-muted);padding:0;font-size:12px}.sidebar-footer .logout-btn:hover{color:var(--color-danger)}.main-content{flex:1;overflow-x:hidden}.page{padding:24px 32px;max-width:1200px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-title{font-size:22px;font-weight:600}.back-link{display:inline-flex;align-items:center;gap:4px;font-size:13px;color:var(--color-text-muted);margin-bottom:16px}.back-link:hover{color:var(--color-primary);text-decoration:none}.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}.stat-card .stat-label{font-size:12px;font-weight:500;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.stat-card .stat-value{font-size:32px;font-weight:700;margin-top:4px;color:var(--color-text)}.stat-card-label{font-size:12px;font-weight:500;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.stat-card-value{font-size:28px;font-weight:700;margin-top:4px;color:var(--color-text)}.stat-card-sublabel{font-size:12px;color:var(--color-text-muted);margin-top:4px}.stats-period-info{font-size:13px;color:var(--color-text-muted);margin-bottom:24px}.chart-section{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px;margin-bottom:24px;box-shadow:var(--shadow-sm)}.chart-title{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--color-text)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--color-surface);border-radius:var(--radius);padding:24px;max-width:500px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal-title{font-size:18px;font-weight:700;margin-bottom:16px;color:var(--color-text)}.modal-text{font-size:14px;color:var(--color-text);margin-bottom:12px;line-height:1.5}.modal-list{font-size:13px;color:var(--color-text-muted);margin:0 0 16px;padding-left:20px;line-height:1.6}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:16px}.card-header{padding:16px 20px;border-bottom:1px solid var(--color-border);font-size:15px;font-weight:600}.card-body{padding:20px}.card-body dl{display:grid;grid-template-columns:160px 1fr;gap:12px 16px}.card-body dt{font-size:13px;color:var(--color-text-muted);font-weight:500}.card-body dd{font-size:14px;color:var(--color-text);word-break:break-word}.badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid transparent}.badge-open{background:var(--color-warning-light);color:#92400e;border-color:#fde68a}.badge-reviewing{background:var(--color-info-light);color:#155e75;border-color:#a5f3fc}.badge-resolved{background:var(--color-success-light);color:#166534;border-color:#bbf7d0}.badge-dismissed{background:var(--color-neutral-light);color:var(--color-text-muted);border-color:var(--color-border)}.badge-false_positive{background:var(--color-danger-light);color:#991b1b;border-color:#fecaca}.badge-missed_uplift{background:var(--color-warning-light);color:#92400e;border-color:#fde68a}.filters-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-bottom:20px}.filters-bar .form-group{min-width:140px}.filters-bar .spacer{flex:1}.table-wrap{overflow-x:auto;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface)}table{width:100%;border-collapse:collapse;font-size:13px}thead{background:var(--color-neutral-light)}th{text-align:left;padding:10px 16px;font-weight:600;color:var(--color-text);border-bottom:1px solid var(--color-border);white-space:nowrap}td{padding:10px 16px;border-bottom:1px solid var(--color-border);color:var(--color-text);vertical-align:top}tbody tr:last-child td{border-bottom:none}tbody tr:hover{background:var(--color-neutral-light)}.row-link{cursor:pointer}.strava-link{display:inline-flex;align-items:center;gap:2px;color:var(--color-primary);text-decoration:none}.strava-link:hover{text-decoration:underline}.strava-link .external-icon{font-size:11px;color:var(--color-text-muted)}.uid-cell{font-size:12px;color:var(--color-text-muted)}.pagination{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--color-text-muted)}.pagination-controls{display:flex;gap:8px}.empty-state,.error-state{text-align:center;padding:48px 16px;color:var(--color-text-muted)}.error-state{color:var(--color-danger)}.segment-list{list-style:none;display:flex;flex-direction:column;gap:8px}.segment-list li{padding:10px 14px;background:var(--color-neutral-light);border-radius:var(--radius-sm);font-size:13px}.segment-list .segment-name{font-weight:600}.segment-list .segment-meta{color:var(--color-text-muted);font-size:12px;margin-top:2px}.top-segments{margin-top:8px}.top-segments th{font-size:12px}@media (max-width: 768px){.app-layout{flex-direction:column}.sidebar{width:100%;flex-direction:row;align-items:center;border-right:none;border-bottom:1px solid var(--color-border);padding:8px 12px}.sidebar-header{border-bottom:none;padding:0;flex:1}.sidebar-nav{flex-direction:row;padding:0 8px}.sidebar-footer{border-top:none;padding:0}.page{padding:16px}.stat-grid{grid-template-columns:repeat(2,1fr)}}