@media (max-width: 768px){.file-table-container{display:none!important}.file-cards-container{display:block!important}.upload-form .row .col-sm-6{margin-bottom:15px}.upload-form .col-sm-offset-10{margin-left:0!important;width:100%!important}.upload-form .btn-submit{width:100%;margin-top:10px}}@media (min-width: 769px){.file-table-container{display:block!important}.file-cards-container{display:none!important}}.file-cards-container{display:none;margin-top:20px}.file-card{background:#fff;border:1px solid #e0e0e0;border-radius:8px;margin-bottom:15px;box-shadow:0 2px 4px #0000001a;overflow:hidden;transition:all .3s ease}.file-card:hover{box-shadow:0 4px 12px #00000026;transform:translateY(-2px)}.file-card__header{background:linear-gradient(135deg,#f8f9fa,#e9ecef);padding:16px;border-bottom:1px solid #e9ecef;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.file-card__header:hover{background:linear-gradient(135deg,#e9ecef,#dee2e6)}.file-card__main-info{flex:1;min-width:0}.file-card__filename{font-size:16px;font-weight:600;color:#007bff;text-decoration:none;display:block;margin-bottom:4px;word-wrap:break-word;transition:color .2s ease}.file-card__filename:hover{color:#0056b3;text-decoration:none}.file-card__comment{font-size:14px;color:#6c757d;margin:0;word-wrap:break-word;line-height:1.4}.file-card__comment:empty:before{content:"コメントなし";color:#adb5bd;font-style:italic}.file-card__toggle{background:none;border:none;color:#6c757d;font-size:18px;cursor:pointer;padding:8px;border-radius:50%;transition:all .3s ease;width:36px;height:36px;display:flex;align-items:center;justify-content:center}.file-card__toggle:hover{background:#007bff1a;color:#007bff}.file-card__toggle.expanded{transform:rotate(180deg);color:#007bff}.file-card__details{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;background:#fff}.file-card__details.expanded{max-height:300px;padding:20px}.file-card__detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-bottom:20px}.file-card__detail-item{display:flex;flex-direction:column}.file-card__detail-label{font-size:12px;font-weight:500;color:#6c757d;text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}.file-card__detail-value{font-size:14px;color:#212529;font-weight:500}.file-card__detail-value--size{font-family:Courier New,monospace;color:#28a745}.file-card__detail-value--date{font-size:13px;color:#6c757d}.file-card__detail-value--count{background:linear-gradient(135deg,#e3f2fd,#bbdefb);color:#1976d2;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;display:inline-block;min-width:24px;text-align:center}.file-card__actions{display:flex;gap:10px;padding-top:15px;border-top:1px solid #f1f3f4}.file-card__action-btn{flex:1;background:#fff;border:2px solid #007bff;color:#007bff;padding:10px 16px;border-radius:6px;text-decoration:none;font-size:14px;font-weight:500;cursor:pointer;transition:all .3s ease;text-align:center;display:flex;align-items:center;justify-content:center}.file-card__action-btn:hover{background:#007bff;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 4px 8px #007bff4d}.file-card__action-btn--delete{border-color:#dc3545;color:#dc3545}.file-card__action-btn--delete:hover{background:#dc3545;color:#fff;box-shadow:0 4px 8px #dc35454d}.upload-form{margin-bottom:30px}.upload-form .form-section{margin-bottom:20px}.upload-form .file-input-group{position:relative;margin-bottom:15px}.upload-form .btn-submit{background:linear-gradient(135deg,#28a745,#20c997);border:none;color:#fff;padding:12px 24px;border-radius:6px;font-weight:500;transition:all .3s ease}.upload-form .btn-submit:hover{transform:translateY(-2px);box-shadow:0 4px 12px #28a7454d}.status-message{margin-bottom:20px;border-radius:8px;padding:16px 20px;border:none;font-weight:500;animation:slideDown .4s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.status-message.success{background:linear-gradient(135deg,#d4edda,#c3e6cb);color:#155724;border-left:4px solid #28a745}.status-message.error{background:linear-gradient(135deg,#f8d7da,#f5c6cb);color:#721c24;border-left:4px solid #dc3545}.upload-progress{margin:20px 0;padding:20px;background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:12px;border:1px solid #dee2e6;box-shadow:0 2px 10px #0000001a}.upload-progress h4{margin:0 0 15px;color:#495057;font-weight:600;text-align:center}.progress{height:20px;background:#e9ecef;border-radius:10px;overflow:hidden;position:relative;box-shadow:inset 0 1px 2px #0000001a}.progress-bar{background:linear-gradient(45deg,#28a745,#20c997);height:100%;border-radius:10px;transition:width .3s ease;position:relative;overflow:hidden}.progress-bar:after{content:"";position:absolute;inset:0;background:linear-gradient(-45deg,rgba(255,255,255,.3) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.3) 50%,rgba(255,255,255,.3) 75%,transparent 75%,transparent);background-size:20px 20px;animation:progress-stripe 1s linear infinite}.progress-bar span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-weight:600;color:#fff;font-size:12px;text-shadow:0 1px 2px rgba(0,0,0,.3)}@keyframes progress-stripe{0%{background-position:20px 0}to{background-position:0 0}}.error-container{margin:20px 0;padding:20px;background:linear-gradient(135deg,#fff5f5,#fed7d7);border:1px solid #f56565;border-radius:12px;color:#c53030;box-shadow:0 2px 10px #f565651a}.error-container .panel-heading h4{margin:0 0 15px;color:#c53030;font-weight:600;text-align:center}.error-container .panel-body{color:#c53030;font-weight:500}.upload-progress{margin-top:15px;background:#fff;border-radius:8px;padding:20px;box-shadow:0 2px 8px #0000001a}.upload-progress .progress{height:8px;border-radius:4px;background:#e9ecef;overflow:hidden}.upload-progress .progress-bar{background:linear-gradient(90deg,#007bff,#28a745);transition:width .5s ease;border-radius:4px}.error-container{margin-top:15px;background:#fff;border-radius:8px;padding:20px;border-left:4px solid #dc3545;box-shadow:0 2px 8px #dc35451a}.fade-in{animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.slide-up{animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}#uploadModal .modal-body .upload-form .form-section{margin-bottom:12px}#uploadModal .modal-body .form-group{margin-bottom:10px}#uploadModal .modal-body .form-group label{margin-bottom:4px}#uploadModal .modal-body .form-group input{padding:8px 10px}#uploadModal .modal-body .password-strength{min-height:40px}#uploadModal .modal-body .form-section .row .form-group{min-height:90px}