:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--primary-light: #3b82f6;--secondary-color: #64748b;--success-color: #059669;--warning-color: #d97706;--error-color: #dc2626;--background-color: #f8fafc;--card-background: #ffffff;--border-color: #e2e8f0;--border-hover: #cbd5e1;--text-primary: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -1px rgb(0 0 0 / .06);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -2px rgb(0 0 0 / .05);--radius: 8px;--radius-lg: 12px;--transition: all .2s ease-in-out;--transition-fast: all .15s ease-in-out}*{box-sizing:border-box}.dashboard{max-width:1200px;margin:0 auto;padding:20px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--background-color);min-height:100vh;line-height:1.5}.dashboard-header{text-align:center;margin-bottom:40px;padding:20px 0}.dashboard-header h1{color:var(--text-primary);margin-bottom:10px;font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary-color),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.timezone-info{color:var(--text-secondary);font-size:14px;font-style:italic;font-weight:500}.date-range-section{display:flex;justify-content:center;align-items:flex-end;gap:24px;margin-bottom:40px;padding:24px;background:var(--card-background);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-wrap:wrap;transition:var(--transition)}.date-range-section:hover{box-shadow:var(--shadow-md)}.date-time-picker{display:flex;flex-direction:column;gap:12px;min-width:180px}.input-group{position:relative;display:flex;flex-direction:column;gap:6px}.field-label{font-weight:600;color:var(--text-primary);font-size:14px;letter-spacing:.025em}.date-input,.time-input,.us-date-input{padding:12px 16px;border:2px solid var(--border-color);border-radius:var(--radius);font-size:14px;font-weight:500;background:var(--card-background);transition:var(--transition);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,monospace}.date-picker-wrapper{position:relative;display:flex;align-items:center;width:100%}.us-date-picker-input{letter-spacing:.05em;padding-right:45px;cursor:pointer;-webkit-user-select:none;user-select:none;width:100%}.us-date-picker-input::placeholder{color:var(--text-muted);font-style:italic}.date-picker-icon{position:absolute;right:12px;cursor:pointer;font-size:18px;color:var(--text-secondary);transition:var(--transition);-webkit-user-select:none;user-select:none;z-index:1}.date-picker-icon:hover{color:var(--primary-color);transform:scale(1.1)}.date-picker-dropdown{position:absolute;top:100%;left:0;width:100%;min-width:320px;background:var(--card-background);border:2px solid var(--primary-color);border-radius:var(--radius);box-shadow:var(--shadow-lg);z-index:1000;margin-top:4px;animation:slideDown .2s ease-out}.date-picker-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border-color);background:linear-gradient(135deg,#f8fafc,#e2e8f0)}.nav-btn{background:none;border:none;font-size:18px;color:var(--text-secondary);cursor:pointer;padding:8px 12px;border-radius:var(--radius);transition:var(--transition);font-weight:700;min-width:40px;height:40px;display:flex;align-items:center;justify-content:center}.nav-btn:hover{background:var(--primary-color);color:#fff;transform:scale(1.05)}.month-year{font-weight:600;color:var(--text-primary);font-size:16px;text-align:center;flex-grow:1}.date-picker-days-header{display:grid;grid-template-columns:repeat(7,1fr);background:#f8fafc;border-bottom:1px solid var(--border-color)}.day-header{padding:8px 4px;text-align:center;font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.date-picker-days{display:grid;grid-template-columns:repeat(7,1fr);padding:4px;gap:2px}.day-button{background:none;border:none;padding:8px 4px;cursor:pointer;font-size:13px;font-weight:500;transition:var(--transition);border-radius:4px;height:36px;display:flex;align-items:center;justify-content:center;position:relative}.day-button.current-month{color:var(--text-primary)}.day-button.other-month{color:var(--text-muted);opacity:.5}.day-button:hover:not(.future-disabled){background:var(--primary-light);color:#fff;transform:scale(1.05)}.day-button.today{background:linear-gradient(135deg,var(--warning-color),#f59e0b);color:#fff;font-weight:700}.day-button.selected{background:linear-gradient(135deg,var(--primary-color),var(--primary-hover));color:#fff;font-weight:700;transform:scale(1.05)}.day-button.future-disabled{background:#f3f4f6;color:#d1d5db;cursor:not-allowed;opacity:.3}.day-button.future-disabled:hover{transform:none;background:#f3f4f6}@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.date-input:focus,.time-input:focus,.us-date-input:focus,.us-date-picker-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a;transform:translateY(-1px)}.date-input:hover,.time-input:hover,.us-date-input:hover,.us-date-picker-input:hover{border-color:var(--border-hover)}.date-input.invalid,.time-input.invalid,.us-date-input.invalid,.us-date-picker-input.invalid{border-color:var(--error-color);box-shadow:0 0 0 3px #dc26261a;animation:shake .3s ease-in-out}.date-input.valid,.time-input.valid,.us-date-input.valid,.us-date-picker-input.valid{border-color:var(--success-color)}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}.date-display{font-size:12px;color:var(--text-muted);font-style:italic;font-weight:500}.error-message{position:absolute;top:100%;left:0;font-size:12px;color:var(--error-color);margin-top:4px;font-weight:500;animation:slideDown .2s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.validation-summary{background:#fef2f2;border:1px solid #fecaca;color:var(--error-color);padding:16px 20px;border-radius:var(--radius);margin-bottom:24px;box-shadow:var(--shadow-sm)}.validation-summary h4{margin:0 0 8px;font-size:14px;font-weight:600}.validation-summary ul{margin:0;padding-left:20px}.validation-summary li{font-size:13px;margin-bottom:4px}.refresh-btn{background:linear-gradient(135deg,var(--primary-color),var(--primary-hover));color:#fff;border:none;padding:12px 24px;border-radius:var(--radius);cursor:pointer;font-size:14px;font-weight:600;height:fit-content;transition:var(--transition);box-shadow:var(--shadow-sm);position:relative;overflow:hidden;display:flex;align-items:center;gap:8px}.refresh-btn:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-hover),var(--primary-color));transform:translateY(-2px);box-shadow:var(--shadow-md)}.refresh-btn:active{transform:translateY(0)}.refresh-btn:disabled{background:var(--secondary-color);cursor:not-allowed;transform:none;box-shadow:var(--shadow-sm)}.refresh-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.refresh-btn:hover:not(:disabled):before{left:100%}.loading-spinner-small{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top:2px solid white;border-radius:50%;animation:spin 1s linear infinite}.retry-btn{background:var(--error-color);color:#fff;border:none;padding:8px 16px;border-radius:var(--radius);cursor:pointer;margin-top:10px;font-weight:500;transition:var(--transition)}.retry-btn:hover{background:#b91c1c;transform:translateY(-1px)}.stats-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:40px}.stat-card{background:var(--card-background);padding:24px;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);text-align:center;transition:var(--transition);cursor:pointer;border:1px solid var(--border-color);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--primary-light));transform:scaleX(0);transition:transform .3s ease}.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-color)}.stat-card:hover:before{transform:scaleX(1)}.stat-value{font-size:28px;font-weight:700;color:var(--primary-color);margin-bottom:8px;font-variant-numeric:tabular-nums}.stat-label{font-size:14px;color:var(--text-secondary);font-weight:600;text-transform:uppercase;letter-spacing:.05em}.loading-container{text-align:center;padding:60px 40px;background:var(--card-background);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.loading-spinner{border:4px solid var(--border-color);border-top:4px solid var(--primary-color);border-radius:50%;width:48px;height:48px;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-container p{color:var(--text-secondary);font-weight:500;margin:0}.error-message{background:#fef2f2;color:var(--error-color);padding:20px;border-radius:var(--radius);margin-bottom:20px;text-align:center;border:1px solid #fecaca;box-shadow:var(--shadow-sm)}.toast{position:fixed;top:24px;right:24px;padding:16px 24px;border-radius:var(--radius);box-shadow:var(--shadow-lg);z-index:1000;transform:translate(120%);transition:transform .3s cubic-bezier(.4,0,.2,1);font-weight:500;max-width:400px;border:1px solid}.toast.show{transform:translate(0)}.toast.success{background:#f0fdf4;color:var(--success-color);border-color:#bbf7d0}.toast.error{background:#fef2f2;color:var(--error-color);border-color:#fecaca}.users-section{background:var(--card-background);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;border:1px solid var(--border-color)}.users-section h2{color:var(--text-primary);margin:0;padding:24px 24px 0;font-size:1.5rem;font-weight:700}.table-container{overflow-x:auto;margin:24px;border-radius:var(--radius);border:1px solid var(--border-color)}.users-table{width:100%;border-collapse:collapse;min-width:1000px;background:var(--card-background)}.users-table th,.users-table td{padding:16px 12px;text-align:left;border-bottom:1px solid var(--border-color);font-size:14px}.users-table th{background:linear-gradient(135deg,#f8fafc,#e2e8f0);font-weight:700;color:var(--text-primary);position:sticky;top:0;text-transform:uppercase;letter-spacing:.05em;font-size:12px;border-bottom:2px solid var(--border-color)}.users-table .sortable{cursor:pointer;-webkit-user-select:none;user-select:none;transition:var(--transition-fast);position:relative}.users-table .sortable:hover{background:var(--primary-color);color:#fff}.users-table tr{transition:background-color .15s ease}.users-table tr:hover{background:#f8fafc}.users-table tr.even{background:#f8fafc80}.users-table tr:hover{background:#f1f5f9!important}.number-cell,.time-cell{font-variant-numeric:tabular-nums;font-weight:500}.user-name{font-weight:600;color:var(--text-primary)}.summary-info{margin:24px;padding:24px;background:#f8fafc;border-radius:var(--radius);border:1px solid var(--border-color)}.summary-info h3{margin:0 0 16px;color:var(--text-primary);font-size:1.25rem;font-weight:700}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px}.summary-item{display:flex;justify-content:space-between;align-items:center;padding:8px 0}.summary-label{color:var(--text-secondary);font-weight:500}.summary-value{color:var(--text-primary);font-weight:600;font-variant-numeric:tabular-nums}.no-data{text-align:center;padding:60px 40px;color:var(--text-secondary);background:var(--card-background);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.no-data-icon{font-size:48px;margin-bottom:16px;opacity:.7}.no-data h3{color:var(--text-primary);margin:0 0 12px;font-size:1.25rem;font-weight:700}.no-data p{margin:8px 0;font-weight:500}@media (max-width: 1024px){.stats-summary{grid-template-columns:repeat(2,1fr)}.users-table th,.users-table td{padding:12px 8px}}@media (max-width: 768px){.dashboard{padding:16px}.dashboard-header h1{font-size:2rem}.date-range-section{flex-direction:column;align-items:center;gap:20px;padding:20px}.date-time-picker{width:100%;max-width:300px}.date-picker-dropdown{min-width:280px;left:50%;transform:translate(-50%)}.stats-summary{grid-template-columns:1fr;gap:16px}.stat-card{padding:20px}.stat-value{font-size:24px}.table-container{margin:16px;font-size:13px}.users-table th,.users-table td{padding:10px 6px}.summary-info{margin:16px;padding:20px}.summary-grid{grid-template-columns:1fr}}@media (max-width: 640px){.dashboard-header h1{font-size:1.75rem}.refresh-btn{width:100%;justify-content:center}.toast{left:16px;right:16px;transform:translateY(-120%)}.toast.show{transform:translateY(0)}}.refresh-btn:focus,.retry-btn:focus,.date-input:focus,.time-input:focus,.us-date-input:focus,.us-date-picker-input:focus,.sortable:focus{outline:2px solid var(--primary-color);outline-offset:2px}@media print{.toast,.refresh-btn,.retry-btn{display:none}.dashboard{background:#fff;box-shadow:none}.stat-card,.users-section,.table-container{box-shadow:none;border:1px solid #ccc}}.date-picker-footer{padding:8px;border-top:1px solid var(--border-color);display:flex;justify-content:center}.today-btn{background:var(--primary-color);color:#fff;border:none;padding:6px 16px;border-radius:4px;cursor:pointer;font-size:13px;font-weight:600;transition:var(--transition)}.today-btn:hover{background:var(--primary-hover);transform:scale(1.05)}.nav-btn:disabled{opacity:.5;cursor:not-allowed}.nav-btn:disabled:hover{background:transparent;transform:none}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;color:#213547;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#root{width:100%;margin:0 auto;text-align:center}