:root{--primary-color:#1e40af;--accent-color:#3b82f6;--background-color:#f8fafc;--sidebar-bg:#1e293b;--sidebar-text:#fff;--card-bg:#fff;--border-color:#e2e8f0;--text-primary:#1f2937;--text-secondary:#6b7280;--success-color:#10b981;--warning-color:#f59e0b;--danger-color:#ef4444;--row-alt-bg:#f9fafb}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Noto Sans KR,Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--background-color);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--accent-color);text-decoration:none}a:hover{color:var(--primary-color)}button{cursor:pointer;border:none;outline:none}button,input,select,textarea{font-family:inherit}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,var(--primary-color) 0,var(--accent-color) 100%)}.auth-card{background:var(--card-bg);padding:2.5rem;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.15);width:100%;max-width:400px}.auth-card h1{font-size:28px;font-weight:700;text-align:center;margin-bottom:12px;color:var(--primary-color)}.auth-card p{text-align:center;color:var(--text-secondary);margin-bottom:2rem;font-size:14px}.auth-input-group{margin-bottom:1.5rem}.auth-input-group label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-primary);font-size:14px}.auth-input-group input{width:100%;padding:12px;border:2px solid var(--border-color);border-radius:8px;font-size:14px;transition:all .3s ease}.auth-input-group input:focus{border-color:var(--accent-color);box-shadow:0 0 0 3px rgba(59,130,246,.1)}.auth-button{width:100%;padding:12px;background-color:var(--primary-color);color:#fff;font-size:15px;font-weight:600;border-radius:8px;transition:all .3s ease;margin-top:.5rem}.auth-button:hover{background-color:#1e3a8a;box-shadow:0 10px 25px rgba(30,64,175,.3)}.auth-button:active{transform:translateY(1px)}.auth-error{color:var(--danger-color);font-size:13px;margin-top:8px;text-align:center}.dashboard-container{display:flex;min-height:100vh;background-color:var(--background-color)}.sidebar{width:220px;background-color:var(--sidebar-bg);color:var(--sidebar-text);padding:1.5rem 0;position:fixed;height:100vh;overflow-y:auto;box-shadow:2px 0 8px rgba(0,0,0,.1)}.sidebar-header{padding:1rem 1.5rem;margin-bottom:2rem;border-bottom:1px solid hsla(0,0%,100%,.1)}.sidebar-header h2{font-size:18px;font-weight:700;margin-bottom:4px}.sidebar-header p{font-size:12px;color:hsla(0,0%,100%,.7)}.nav-tabs{list-style:none}.nav-tab{padding:0;margin:0}.nav-tab button{width:100%;padding:14px 1.5rem;background:none;color:var(--sidebar-text);text-align:left;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;border:none;border-left:4px solid transparent;display:flex;align-items:center;gap:10px}.nav-tab button:hover{background-color:hsla(0,0%,100%,.1)}.nav-tab button.active{background-color:rgba(59,130,246,.2);border-left-color:var(--accent-color);color:#e0f2fe}.nav-icon{width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center}.main-content{margin-left:220px;flex:1 1;padding:2rem}.content-header{margin-bottom:2rem}.content-header h1{font-size:28px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.content-header p{color:var(--text-secondary);font-size:14px}.tab-content{animation:fadeIn .3s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.card{background-color:var(--card-bg);border-radius:10px;padding:1.5rem;box-shadow:0 1px 3px rgba(0,0,0,.08);transition:all .3s ease;border:1px solid var(--border-color)}.card:hover{box-shadow:0 4px 12px rgba(0,0,0,.1);transform:translateY(-2px)}.card-title{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:1rem}.card-content{font-size:14px;color:var(--text-secondary);line-height:1.6}.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:1.5rem}.grid-2,.grid-3{display:grid;gap:1.5rem;margin-bottom:2rem}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));grid-gap:1.5rem}.table-container{overflow-x:auto;margin-bottom:2rem}table{width:100%;border-collapse:collapse;background-color:var(--card-bg);border-radius:10px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.08)}table thead{background-color:#f3f4f6;border-bottom:2px solid var(--border-color)}table th{text-align:left;font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.5px}table td,table th{padding:12px 1rem;color:var(--text-primary)}table td{border-bottom:1px solid var(--border-color);font-size:14px}table tbody tr:nth-child(2n){background-color:var(--row-alt-bg)}table tbody tr:hover{background-color:#f3f4f6}table tbody tr:last-child td{border-bottom:none}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:6px;font-weight:500;color:var(--text-primary);font-size:14px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:6px;font-size:14px;color:var(--text-primary);transition:all .2s ease}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent-color);box-shadow:0 0 0 3px rgba(59,130,246,.1)}.form-group textarea{resize:vertical;min-height:100px;font-family:inherit}.btn{padding:10px 16px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;border:none;display:inline-block;text-align:center}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:#1e3a8a}.btn-secondary{background-color:#e5e7eb;color:var(--text-primary)}.btn-secondary:hover{background-color:#d1d5db}.btn-success{background-color:var(--success-color);color:#fff}.btn-success:hover{background-color:#059669}.btn-danger{background-color:var(--danger-color);color:#fff}.btn-danger:hover{background-color:#dc2626}.btn-small{padding:6px 12px;font-size:12px}.badge{display:inline-block;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:600}.badge-primary{background-color:rgba(30,64,175,.1);color:var(--primary-color)}.badge-success{background-color:rgba(16,185,129,.1);color:var(--success-color)}.badge-warning{background-color:rgba(245,158,11,.1);color:var(--warning-color)}.badge-danger{background-color:rgba(239,68,68,.1);color:var(--danger-color)}.text-center{text-align:center}.text-right{text-align:right}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.gap-1{gap:.5rem}.gap-2{gap:1rem}.gap-3{gap:1.5rem}.flex{display:flex}.flex-between{justify-content:space-between}.flex-between,.flex-center{display:flex;align-items:center}.flex-center{justify-content:center}@media (max-width:768px){.sidebar{width:100%;height:auto;position:static;padding:1rem 0}.nav-tabs{display:flex;overflow-x:auto}.nav-tab{flex:0 0 auto}.nav-tab button{padding:10px 1rem;font-size:13px;white-space:nowrap}.main-content{margin-left:0;padding:1rem}.grid-2,.grid-3{grid-template-columns:1fr}.content-header h1{font-size:22px}table{font-size:12px}table td,table th{padding:8px .5rem}}@media (max-width:480px){.auth-card{padding:1.5rem}.sidebar-header{padding:.75rem 1rem}.nav-tab button{padding:10px 1rem;font-size:12px}.card{padding:1rem}}