:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--secondary-color: #64748b;--success-color: #22c55e;--warning-color: #f59e0b;--danger-color: #ef4444;--background: #f8fafc;--surface: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0;--border-radius: 8px;--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 -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;background-color:var(--background);color:var(--text-primary);line-height:1.6}.app-container{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding:2rem;max-width:1200px;margin:0 auto;width:100%}.header{background:linear-gradient(135deg,var(--primary-color),#3b82f6);color:#fff;padding:1rem 2rem;box-shadow:var(--shadow-md)}.header-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.header h1{font-size:1.5rem;font-weight:600}.header-nav{display:flex;gap:1rem;align-items:center}.card{background:var(--surface);border-radius:var(--border-radius);box-shadow:var(--shadow-md);padding:1.5rem;margin-bottom:1.5rem}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.card-title{font-size:1.25rem;font-weight:600;color:var(--text-primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border:none;border-radius:var(--border-radius);cursor:pointer;transition:all .2s ease;text-decoration:none}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-secondary{background:var(--secondary-color);color:#fff}.btn-secondary:hover{background:#475569}.btn-success{background:var(--success-color);color:#fff}.btn-danger{background:var(--danger-color);color:#fff}.btn-outline{background:transparent;border:2px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:#fff}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-sm{padding:.5rem 1rem;font-size:.875rem}.form-group{margin-bottom:1.25rem}.form-label{display:block;font-weight:500;margin-bottom:.5rem;color:var(--text-primary)}.form-input{width:100%;padding:.75rem 1rem;font-size:1rem;border:1px solid var(--border-color);border-radius:var(--border-radius);transition:border-color .2s ease,box-shadow .2s ease}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.form-input::placeholder{color:var(--text-secondary)}.form-select{width:100%;padding:.75rem 1rem;font-size:1rem;border:1px solid var(--border-color);border-radius:var(--border-radius);background:#fff;cursor:pointer}.progress-container{margin:1rem 0}.progress-bar{height:12px;background:var(--border-color);border-radius:6px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary-color),var(--success-color));border-radius:6px;transition:width .3s ease}.progress-text{display:flex;justify-content:space-between;margin-top:.5rem;font-size:.875rem;color:var(--text-secondary)}.table-container{overflow-x:auto}.table{width:100%;border-collapse:collapse;font-size:.875rem}.table th,.table td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--border-color)}.table th{background:var(--background);font-weight:600;color:var(--text-secondary)}.table tbody tr:hover{background:var(--background)}.badge{display:inline-flex;align-items:center;padding:.25rem .75rem;font-size:.75rem;font-weight:500;border-radius:9999px}.badge-success{background:#dcfce7;color:#166534}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}.availability{display:inline-flex;align-items:center;gap:.25rem;font-weight:600}.availability-full{color:var(--success-color)}.availability-available{color:var(--primary-color)}.availability-few{color:var(--warning-color)}.availability-none{color:var(--danger-color)}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1e3a8a,#3b82f6);padding:1rem}.login-card{background:#fff;padding:2.5rem;border-radius:16px;box-shadow:var(--shadow-lg);width:100%;max-width:420px}.login-header{text-align:center;margin-bottom:2rem}.login-header h1{font-size:1.5rem;color:var(--text-primary);margin-bottom:.5rem}.login-header p{color:var(--text-secondary)}.login-error{background:#fee2e2;color:#991b1b;padding:.75rem 1rem;border-radius:var(--border-radius);margin-bottom:1rem;font-size:.875rem}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.calendar-header{text-align:center;font-weight:600;padding:.5rem;color:var(--text-secondary);font-size:.875rem}.calendar-day{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid var(--border-color);border-radius:var(--border-radius);cursor:pointer;transition:all .2s ease;font-size:.875rem}.calendar-day:hover{background:var(--background);border-color:var(--primary-color)}.calendar-day.selected{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.calendar-day.has-slots{position:relative}.calendar-day.has-slots:after{content:"";position:absolute;bottom:4px;width:6px;height:6px;background:var(--success-color);border-radius:50%}.calendar-day.disabled{opacity:.4;cursor:not-allowed}.slot-list{display:flex;flex-direction:column;gap:.75rem}.slot-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:var(--background);border-radius:var(--border-radius);border:1px solid var(--border-color)}.slot-time{font-weight:600;font-size:1rem}.slot-info{display:flex;gap:1rem;align-items:center}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem}.stat-card{background:var(--surface);padding:1.5rem;border-radius:var(--border-radius);box-shadow:var(--shadow-sm);border-left:4px solid var(--primary-color)}.stat-value{font-size:2rem;font-weight:700;color:var(--text-primary)}.stat-label{color:var(--text-secondary);font-size:.875rem;margin-top:.25rem}.alert{padding:1rem;border-radius:var(--border-radius);margin-bottom:1rem}.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #93c5fd}.alert-warning{background:#fef3c7;color:#92400e;border:1px solid #fcd34d}.alert-success{background:#dcfce7;color:#166534;border:1px solid #86efac}.loading{display:flex;align-items:center;justify-content:center;padding:2rem}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-content{background:#fff;border-radius:var(--border-radius);box-shadow:var(--shadow-lg);max-width:500px;width:100%;max-height:90vh;overflow-y:auto}.modal-header{padding:1.5rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.modal-body{padding:1.5rem}.modal-footer{padding:1rem 1.5rem;border-top:1px solid var(--border-color);display:flex;justify-content:flex-end;gap:.75rem}@media(max-width:768px){.main-content{padding:1rem}.header-content{flex-direction:column;gap:1rem}.stats-grid{grid-template-columns:1fr}.slot-item{flex-direction:column;gap:.75rem;align-items:flex-start}}