.seminar-schedule-container{margin:20px 0}.seminar-date-section{margin-bottom:15px;border:1px solid #ddd;border-radius:4px;overflow:hidden}.seminar-date-header{background:#f5f5f5;padding:12px 15px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background-color .3s}.seminar-date-header:hover{background:#eee}.seminar-date-header.is-open{background:#e0e0e0}.seminar-date-header .date-text{font-weight:700;font-size:16px}.seminar-date-header .date-text.saturday{color:#0073aa}.seminar-date-header .date-text.sunday{color:#dc3232}.seminar-date-header .toggle-icon:after{content:"▼";font-size:12px;transition:transform .3s}.seminar-date-header.is-open .toggle-icon:after{transform:rotate(180deg)}.seminar-time-slots{display:none;padding:15px;background:#fff}.seminar-time-slots.is-open{display:block}.time-slots-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}.seminar-time-button{padding:10px 15px;border:2px solid #2271b1;border-radius:4px;background:#fff;color:#2271b1;cursor:pointer;text-align:center;transition:all .3s;font-size:14px}.seminar-time-button:hover:not(.is-disabled):not(.is-soldout){background:#2271b1;color:#fff}.seminar-time-button.is-selected{background:#2271b1;color:#fff}.seminar-time-button.is-few{border-color:#ffc107;background:#fff3cd;color:#856404}.seminar-time-button.is-few:after{content:"残りわずか";display:block;font-size:10px;margin-top:4px}.seminar-time-button.is-soldout{border-color:#dc3545;background:#f8d7da;color:#721c24;cursor:not-allowed;opacity:.8}.seminar-time-button.is-soldout:after{content:"満員御礼";display:block;font-size:10px;margin-top:4px}.seminar-time-button.is-disabled,.seminar-time-button.is-past{border-color:#ccc;background:#f0f0f0;color:#999;cursor:not-allowed}.seminar-closed-notice{padding:15px;background:#f8f8f8;color:#666;text-align:center;font-style:italic}@media (max-width:768px){.time-slots-grid{grid-template-columns:repeat(2,1fr)}.seminar-time-button{padding:8px 10px;font-size:13px}}@media (max-width:480px){.time-slots-grid{grid-template-columns:1fr}}