:root{--color-primary: #3182ce;--color-primary-hover: #2b6cb0;--color-primary-active: #2c5282;--color-primary-ring: rgba(49, 130, 206, .1);--color-gray-50: #f7fafc;--color-gray-100: #edf2f7;--color-gray-200: #e2e8f0;--color-gray-300: #cbd5e0;--color-gray-400: #a0aec0;--color-gray-500: #718096;--color-gray-600: #4a5568;--color-gray-700: #2d3748;--color-gray-800: #1a1a1a;--color-success: #276749;--color-success-bg: #f0fff4;--color-success-light: #c6f6d5;--color-error: #e53e3e;--color-error-dark: #c53030;--color-error-bg: #fed7d7;--color-warning: #fbbf24;--color-warning-bg: #fffbeb;--color-warning-text: #92400e;--color-warning-partial-bg: #fefcbf;--color-warning-partial-text: #975a16;--color-bg: #f5f5f5;--color-bg-card: #ffffff;--color-bg-divider: #f0f0f0;--color-text-primary: #1a1a1a;--color-text-secondary: #4a5568;--color-text-muted: #666666;--color-text-hint: #999999;--color-text-disabled: #a0aec0;--font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;--font-size-xs: .625rem;--font-size-sm: .75rem;--font-size-label: .8125rem;--font-size-base: .875rem;--font-size-md: .9375rem;--font-size-lg: 1rem;--font-size-xl: 1.125rem;--font-size-2xl: 1.5rem;--space-1: 4px;--space-2: 6px;--space-3: 8px;--space-4: 10px;--space-5: 12px;--space-6: 14px;--space-7: 16px;--space-8: 20px;--space-9: 24px;--space-10: 32px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--radius-pill: 16px;--radius-full: 50%;--color-info: #3182ce;--color-info-bg: #ebf8ff;--gradient-primary: linear-gradient(135deg, #3182ce 0%, #2b6cb0 100%);--gradient-primary-hover: linear-gradient(135deg, #2b6cb0 0%, #2c5282 100%);--shadow-card: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-card-hover: 0 4px 12px rgba(0, 0, 0, .08), 0 2px 4px rgba(0, 0, 0, .04);--shadow-knob: 0 1px 3px rgba(0, 0, 0, .15);--transition-fast: .15s ease;--transition-normal: .2s ease;--container-max-width: 960px;--container-padding: 24px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-family:var(--font-family);font-size:16px;line-height:1.6;color:var(--color-text-primary);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{min-height:100vh}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;background:none;font:inherit;color:inherit}input,select,textarea{font:inherit;color:inherit}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%,to{opacity:1}50%{opacity:.4}}@keyframes shimmer-sweep{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.card{background:var(--color-bg-card);border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-card);border:1px solid var(--color-gray-100);transition:box-shadow var(--transition-normal)}.card-title{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary);margin-bottom:var(--space-7);display:flex;align-items:center;gap:var(--space-4)}.card-title-icon{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:var(--radius-md);flex-shrink:0}.status-badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:3px var(--space-4);border-radius:var(--radius-pill);font-size:var(--font-size-sm);font-weight:500}.status-badge--success{background:var(--color-success-bg);color:var(--color-success)}.status-badge--error{background:var(--color-error-bg);color:var(--color-error-dark)}.status-badge--warning{background:var(--color-warning-bg);color:var(--color-warning-text)}.status-badge--info{background:var(--color-info-bg);color:var(--color-info)}.status-dot{width:7px;height:7px;border-radius:var(--radius-full);flex-shrink:0}.status-dot--success{background:var(--color-success)}.status-dot--error{background:var(--color-error)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-3);border-radius:var(--radius-lg);font-weight:500;transition:background-color var(--transition-fast),opacity var(--transition-fast)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--gradient-primary);color:#fff;padding:var(--space-4) var(--space-8);font-size:var(--font-size-md);font-weight:600}.btn-primary:hover:not(:disabled){background:var(--gradient-primary-hover)}.btn-secondary{background:var(--color-gray-100);color:var(--color-text-secondary);padding:var(--space-3) var(--space-7);font-size:var(--font-size-base)}.btn-secondary:hover:not(:disabled){background:var(--color-gray-200)}.spinner{border-radius:var(--radius-full);animation:spin .6s linear infinite}.spinner--sm{width:14px;height:14px;border:2px solid var(--color-gray-200);border-top-color:var(--color-primary)}.spinner--md{width:32px;height:32px;border:3px solid var(--color-gray-200);border-top-color:var(--color-primary)}.spinner--btn{width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff}.skeleton{background:var(--color-gray-200);border-radius:var(--radius-sm);animation:shimmer 1.5s ease-in-out infinite}.skeleton--sweep{background:linear-gradient(90deg,var(--color-gray-200) 25%,var(--color-gray-100) 50%,var(--color-gray-200) 75%);background-size:200% 100%;animation:shimmer-sweep 1.5s ease-in-out infinite}.period-tabs{display:flex;gap:var(--space-3);margin-bottom:var(--space-7)}.tab{padding:var(--space-2) var(--space-6);border-radius:var(--radius-md);font-size:var(--font-size-label);font-weight:500;background:var(--color-gray-50);color:var(--color-text-secondary);transition:background-color var(--transition-fast),color var(--transition-fast)}.tab:hover:not(:disabled){background:var(--color-gray-100)}.tab--active{background:var(--color-primary);color:#fff}.tab--active:hover:not(:disabled){background:var(--color-primary-hover)}.tab:disabled{opacity:.5;cursor:not-allowed}.error-container{text-align:center;padding:var(--space-7) 0}.error-text{color:var(--color-error);font-size:var(--font-size-base);margin-bottom:var(--space-3)}.retry-btn{padding:var(--space-2) var(--space-6);border-radius:var(--radius-md);font-size:var(--font-size-label);font-weight:500;background:var(--color-gray-100);color:var(--color-text-secondary);transition:background-color var(--transition-fast)}.retry-btn:hover{background:var(--color-gray-200)}.empty-container{text-align:center;padding:var(--space-9) 0}.empty-text{color:var(--color-text-hint);font-size:var(--font-size-base)}.toast-container{position:fixed;bottom:var(--space-7);left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:var(--space-3);z-index:1000;width:calc(100% - var(--space-10));max-width:var(--container-max-width);pointer-events:none}.toast{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-5) var(--space-7);border-radius:var(--radius-lg);box-shadow:0 4px 12px #00000026;font-size:var(--font-size-base);pointer-events:auto;animation:toast-in .25s ease-out}.toast--error{background:var(--color-error-bg);color:var(--color-error-dark);border:1px solid var(--color-error)}.toast--success{background:var(--color-success-bg);color:var(--color-success);border:1px solid var(--color-success-light)}.toast--warning{background:var(--color-warning-bg);color:var(--color-warning-text);border:1px solid var(--color-warning)}.toast-message{flex:1;line-height:1.4}.toast-close{flex-shrink:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xs);opacity:.6;transition:opacity var(--transition-fast);cursor:pointer}.toast-close:hover{opacity:1}@media(max-width:480px){:root{--container-padding: 12px}.card{padding:var(--space-7);border-radius:var(--radius-lg)}}