:root{--color-bg: #f8f9fb;--color-bg-secondary: #ffffff;--color-bg-tertiary: #f1f3f9;--color-text: #1a1d23;--color-text-secondary: #5c6370;--color-text-tertiary: #8b92a0;--color-border: #e2e5eb;--color-border-light: #eef0f4;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #eff6ff;--color-success: #10b981;--color-success-light: #ecfdf5;--color-warning: #f59e0b;--color-warning-light: #fffbeb;--color-danger: #ef4444;--color-danger-light: #fef2f2;--color-info: #6366f1;--color-info-light: #eef2ff;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .06), 0 2px 4px -1px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .06), 0 4px 6px -2px rgba(0, 0, 0, .03);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--font-sans: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease;--sidebar-width: 260px;--header-height: 64px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3;color:var(--color-text)}h1{font-size:1.875rem}h2{font-size:1.5rem}h3{font-size:1.25rem}h4{font-size:1.125rem}p{color:var(--color-text-secondary)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-hover)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);font-size:.875rem;font-weight:500;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;height:36px}.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-bg-secondary);color:var(--color-text);border-color:var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-tertiary);border-color:var(--color-border)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:#dc2626}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--color-bg-tertiary);color:var(--color-text)}.btn-sm{height:32px;padding:var(--space-1) var(--space-3);font-size:.8125rem}.btn-lg{height:44px;padding:var(--space-3) var(--space-6);font-size:1rem}.input{width:100%;height:40px;padding:0 var(--space-3);font-size:.875rem;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-secondary);color:var(--color-text);transition:all var(--transition-fast)}.input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.input::placeholder{color:var(--color-text-tertiary)}.input-sm{height:32px;font-size:.8125rem}.input-lg{height:48px;font-size:1rem;padding:0 var(--space-4)}textarea.input{height:auto;min-height:100px;padding:var(--space-3);resize:vertical}.label{display:block;font-size:.875rem;font-weight:500;color:var(--color-text);margin-bottom:var(--space-2)}.form-group{margin-bottom:var(--space-5)}.card{background:var(--color-bg-secondary);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-xs)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-5)}.card-title{font-size:1rem;font-weight:600}.badge{display:inline-flex;align-items:center;padding:2px 8px;font-size:.75rem;font-weight:500;border-radius:9999px}.badge-primary{background:var(--color-primary-light);color:var(--color-primary)}.badge-success{background:var(--color-success-light);color:var(--color-success)}.badge-warning{background:var(--color-warning-light);color:var(--color-warning)}.badge-danger{background:var(--color-danger-light);color:var(--color-danger)}.badge-info{background:var(--color-info-light);color:var(--color-info)}.badge-neutral{background:var(--color-bg-tertiary);color:var(--color-text-secondary)}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:var(--space-3) var(--space-4);text-align:left;border-bottom:1px solid var(--color-border-light)}.table th{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-secondary);background:var(--color-bg-tertiary)}.table tbody tr:hover{background:var(--color-bg-tertiary)}.progress{height:8px;background:var(--color-bg-tertiary);border-radius:9999px;overflow:hidden}.progress-bar{height:100%;background:var(--color-primary);border-radius:9999px;transition:width var(--transition-slow)}.progress-success .progress-bar{background:var(--color-success)}.progress-warning .progress-bar{background:var(--color-warning)}.progress-danger .progress-bar{background:var(--color-danger)}.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.status-dot-success{background:var(--color-success)}.status-dot-warning{background:var(--color-warning)}.status-dot-danger{background:var(--color-danger)}.status-dot-info{background:var(--color-info)}.status-dot-neutral{background:var(--color-text-tertiary)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-12);text-align:center}.empty-state-icon{font-size:3rem;color:var(--color-text-tertiary);margin-bottom:var(--space-4)}.empty-state-title{font-size:1rem;font-weight:500;margin-bottom:var(--space-2)}.empty-state-description{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:var(--space-5)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-center{text-align:center}.text-right{text-align:right}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.text-secondary{color:var(--color-text-secondary)}.text-tertiary{color:var(--color-text-tertiary)}.mt-1{margin-top:var(--space-1)}.mt-2{margin-top:var(--space-2)}.mt-3{margin-top:var(--space-3)}.mt-4{margin-top:var(--space-4)}.mt-5{margin-top:var(--space-5)}.mt-6{margin-top:var(--space-6)}.mb-1{margin-bottom:var(--space-1)}.mb-2{margin-bottom:var(--space-2)}.mb-3{margin-bottom:var(--space-3)}.mb-4{margin-bottom:var(--space-4)}.mb-5{margin-bottom:var(--space-5)}.mb-6{margin-bottom:var(--space-6)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.select{width:100%;height:40px;padding:0 var(--space-3);font-size:.875rem;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-secondary);color:var(--color-text);cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235c6370' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:40px}.select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100;padding:var(--space-4)}.modal{background:var(--color-bg-secondary);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:100%;max-width:480px;max-height:90vh;overflow:auto}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--color-border-light)}.modal-title{font-size:1.125rem;font-weight:600}.modal-body{padding:var(--space-6)}.modal-footer{display:flex;justify-content:flex-end;gap:var(--space-3);padding:var(--space-4) var(--space-6);border-top:1px solid var(--color-border-light);background:var(--color-bg-tertiary)}.alert{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-4);border-radius:var(--radius-md);font-size:.875rem}.alert-success{background:var(--color-success-light);color:#065f46}.alert-warning{background:var(--color-warning-light);color:#92400e}.alert-danger{background:var(--color-danger-light);color:#991b1b}.alert-info{background:var(--color-info-light);color:#3730a3}