.spinner-container {
    display: block;
    width: 100%;
    height: 100%;
}#login-buttons {
  display: inline-block;
  margin-right: 0.2px;
  line-height: 1;
}
#login-buttons .login-button {
  position: relative;
}
#login-buttons button.login-button {
  width: 100%;
}
#login-buttons .login-buttons-with-only-one-button {
  display: inline-block;
}
#login-buttons .login-buttons-with-only-one-button .login-button {
  display: inline-block;
}
#login-buttons .login-buttons-with-only-one-button .login-text-and-button {
  display: inline-block;
}
#login-buttons .login-display-name {
  display: inline-block;
  padding-right: 2px;
  line-height: 1.5;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}
#login-buttons .loading {
  line-height: 1;
  background-image: url(data:image/gif;base64,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);
  width: 16px;
  background-position: center center;
  background-repeat: no-repeat;
}
#login-buttons .login-button,
.accounts-dialog .login-button {
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -o-user-select: none;
  user-select: none;
  padding: 4px 8px;
  font-size: 80%;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  line-height: 1.5;
  text-align: center;
  color: #fff;
  background: #596595;
  border: 1px solid #464f75;
  border-radius: 4px;
}
#login-buttons .login-button:hover,
.accounts-dialog .login-button:hover {
  background: #7580ac;
}
#login-buttons .login-button:active,
.accounts-dialog .login-button:active {
  background: #7580ac;
  box-shadow: 0 2px 3px 0 rgba(0, 0, 0, 0.2) inset;
  -webkit-box-shadow: 0 2px 3px 0 rgba(0, 0, 0, 0.2) inset;
}
#login-buttons .login-button.login-button-disabled,
.accounts-dialog .login-button.login-button-disabled,
#login-buttons .login-button.login-button-disabled:active,
.accounts-dialog .login-button.login-button-disabled:active {
  color: #ddd;
  background: #aaa;
  border: 1px solid #c3c3c3;
  box-shadow: none;
  -webkit-box-shadow: none;
}
.accounts-dialog * {
  padding: 0;
  margin: 0;
  line-height: inherit;
  color: inherit;
  font: inherit;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}
.accounts-dialog .login-button {
  width: auto;
  margin-bottom: 4px;
}
#login-buttons .login-buttons-padding {
  display: inline-block;
  width: 30px;
}
#login-buttons .login-display-name {
  margin-right: 4px;
}
#login-buttons .configure-button {
  background: #ff2a00;
  border-color: #cc2200;
}
#login-buttons .configure-button:active,
#login-buttons .configure-button:hover {
  background: #ff5533;
  border-color: #ff2a00;
}
#login-buttons .login-image {
  display: inline-block;
  position: absolute;
  left: 6px;
  top: 6px;
  width: 16px;
  height: 16px;
}
#login-buttons .text-besides-image {
  margin-left: 18px;
}
#login-buttons .no-services {
  color: red;
}
#login-buttons .login-link-and-dropdown-list {
  position: relative;
}
#login-buttons .login-close-text {
  float: left;
  position: relative;
  padding-bottom: 8px;
}
#login-buttons .login-text-and-button .loading,
#login-buttons .login-link-and-dropdown-list .loading {
  display: inline-block;
}
#login-buttons.login-buttons-dropdown-align-left #login-dropdown-list .loading {
  float: right;
}
#login-buttons.login-buttons-dropdown-align-right #login-dropdown-list .loading {
  float: left;
}
#login-buttons .login-close-text-clear {
  clear: both;
}
#login-buttons .or {
  text-align: center;
}
#login-buttons .hline {
  text-decoration: line-through;
  color: lightgrey;
}
#login-buttons .or-text {
  font-weight: bold;
}
#login-buttons #signup-link {
  float: right;
}
#login-buttons #forgot-password-link,
#login-buttons #resend-passwordless-code {
  float: left;
}
#login-buttons #back-to-login-link {
  float: right;
}
#login-buttons a,
.accounts-dialog a {
  cursor: pointer;
  text-decoration: underline;
}
#login-buttons.login-buttons-dropdown-align-right .login-close-text {
  float: right;
}
.accounts-dialog {
  border: 1px solid #ccc;
  z-index: 1000;
  background: white;
  border-radius: 4px;
  padding: 8px 12px;
  margin: -8px -12px 0 -12px;
  width: 250px;
  box-shadow: 0 0 3px 0 rgba(0, 0, 0, 0.2);
  -webkit-box-shadow: 0 0 3px 0 rgba(0, 0, 0, 0.2);
  font-size: 16px;
  color: #333;
}
.accounts-dialog > * {
  line-height: 1.6;
}
.accounts-dialog > .login-close-text {
  line-height: inherit;
  font-size: inherit;
  font-family: inherit;
}
.accounts-dialog label,
.accounts-dialog .title {
  font-size: 80%;
  margin-top: 7px;
  margin-bottom: -2px;
}
.accounts-dialog label {
  display: inline;
}
.accounts-dialog input[type=text],
.accounts-dialog input[type=email],
.accounts-dialog input[type=password] {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  width: 100%;
}
.accounts-dialog input[type=text][type],
.accounts-dialog input[type=email][type],
.accounts-dialog input[type=password][type] {
  height: auto;
}
.accounts-dialog .login-button-form-submit {
  margin-top: 8px;
}
.accounts-dialog .message {
  font-size: 80%;
  margin-top: 8px;
  line-height: 1.3;
}
.accounts-dialog .error-message {
  color: red;
}
.accounts-dialog .info-message {
  color: green;
}
.accounts-dialog .additional-link {
  font-size: 75%;
}
.accounts-dialog .accounts-close {
  position: absolute;
  top: 0;
  right: 5px;
  font-size: 20px;
  font-weight: bold;
  line-height: 20px;
  text-decoration: none;
  color: #000;
  opacity: 0.4;
}
.accounts-dialog .accounts-close:hover {
  opacity: 0.8;
}
.accounts-dialog #login-buttons-cancel-reset-password {
  float: right;
}
.accounts-dialog #login-buttons-cancel-enroll-account {
  float: right;
}
#login-dropdown-list {
  position: absolute;
  top: -1px;
  left: -1px;
}
#login-buttons.login-buttons-dropdown-align-right #login-dropdown-list {
  left: auto;
  right: -1px;
}
#login-buttons-message-dialog .message {
  /* we intentionally want it bigger on this dialog since it's the only thing displayed */
  font-size: 100%;
}
.accounts-centered-dialog {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  z-index: 1001;
  position: fixed;
  left: 50%;
  margin-left: -258px / 2;
  top: 50%;
  margin-top: -40px;
  /* = approximately -height/2, though height can change */
}
#configure-login-service-dialog {
  width: 530px;
  margin-left: -538px / 2;
  margin-top: -300px;
  /* = approximately -height/2, though height can change */
}
#configure-login-service-dialog table {
  width: 100%;
}
#configure-login-service-dialog input[type=text] {
  width: 100%;
  font-family: "Courier New", Courier, monospace;
}
#configure-login-service-dialog ol {
  margin-top: 10px;
  margin-bottom: 10px;
}
#configure-login-service-dialog ol li {
  margin-left: 30px;
}
#configure-login-service-dialog .configuration_labels {
  width: 30%;
}
#configure-login-service-dialog .configuration_inputs {
  width: 70%;
}
#configure-login-service-dialog .new-section {
  margin-top: 10px;
}
#configure-login-service-dialog .url {
  font-family: "Courier New", Courier, monospace;
}
#configure-login-service-dialog-save-configuration {
  float: right;
}
.configure-login-service-dismiss-button {
  float: left;
}
#just-verified-dismiss-button,
#messages-dialog-dismiss-button {
  margin-top: 8px;
}
.hide-background {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 999;
  /* XXX consider replacing with DXImageTransform */
  background-color: #000000;
  /* fallback for IE7-8 */
  background-color: rgba(0, 0, 0, 0.7);
}
#login-buttons input[type=text],
.accounts-dialog input[type=text],
#login-buttons input[type=email],
.accounts-dialog input[type=email],
#login-buttons input[type=password],
.accounts-dialog input[type=password] {
  padding: 4px;
  border: 1px solid #aaa;
  border-radius: 3px;
  line-height: 1;
}#login-buttons-image-google {
    background-image: url(data:image/png;base64,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);
}.border-dotted {
  border-style: dotted;
}
.upload-icon {
  width: 60px;
  height: 60px;
}@keyframes passing-through{0%{opacity:0;transform:translateY(40px)}30%,70%{opacity:1;transform:translateY(0px)}100%{opacity:0;transform:translateY(-40px)}}@keyframes slide-in{0%{opacity:0;transform:translateY(40px)}30%{opacity:1;transform:translateY(0px)}}@keyframes pulse{0%{transform:scale(1)}10%{transform:scale(1.1)}20%{transform:scale(1)}}.dropzone,.dropzone *{box-sizing:border-box}.dropzone{min-height:150px;border:1px solid rgba(0,0,0,.8);border-radius:5px;padding:20px 20px}.dropzone.dz-clickable{cursor:pointer}.dropzone.dz-clickable *{cursor:default}.dropzone.dz-clickable .dz-message,.dropzone.dz-clickable .dz-message *{cursor:pointer}.dropzone.dz-started .dz-message{display:none}.dropzone.dz-drag-hover{border-style:solid}.dropzone.dz-drag-hover .dz-message{opacity:.5}.dropzone .dz-message{text-align:center;margin:3em 0}.dropzone .dz-message .dz-button{background:none;color:inherit;border:none;padding:0;font:inherit;cursor:pointer;outline:inherit}.dropzone .dz-preview{position:relative;display:inline-block;vertical-align:top;margin:16px;min-height:100px}.dropzone .dz-preview:hover{z-index:1000}.dropzone .dz-preview:hover .dz-details{opacity:1}.dropzone .dz-preview.dz-file-preview .dz-image{border-radius:20px;background:#999;background:linear-gradient(to bottom, #eee, #ddd)}.dropzone .dz-preview.dz-file-preview .dz-details{opacity:1}.dropzone .dz-preview.dz-image-preview{background:#fff}.dropzone .dz-preview.dz-image-preview .dz-details{transition:opacity .2s linear}.dropzone .dz-preview .dz-remove{font-size:14px;text-align:center;display:block;cursor:pointer;border:none}.dropzone .dz-preview .dz-remove:hover{text-decoration:underline}.dropzone .dz-preview:hover .dz-details{opacity:1}.dropzone .dz-preview .dz-details{z-index:20;position:absolute;top:0;left:0;opacity:0;font-size:13px;min-width:100%;max-width:100%;padding:2em 1em;text-align:center;color:rgba(0,0,0,.9);line-height:150%}.dropzone .dz-preview .dz-details .dz-size{margin-bottom:1em;font-size:16px}.dropzone .dz-preview .dz-details .dz-filename{white-space:nowrap}.dropzone .dz-preview .dz-details .dz-filename:hover span{border:1px solid rgba(200,200,200,.8);background-color:rgba(255,255,255,.8)}.dropzone .dz-preview .dz-details .dz-filename:not(:hover){overflow:hidden;text-overflow:ellipsis}.dropzone .dz-preview .dz-details .dz-filename:not(:hover) span{border:1px solid transparent}.dropzone .dz-preview .dz-details .dz-filename span,.dropzone .dz-preview .dz-details .dz-size span{background-color:rgba(255,255,255,.4);padding:0 .4em;border-radius:3px}.dropzone .dz-preview:hover .dz-image img{transform:scale(1.05, 1.05);filter:blur(8px)}.dropzone .dz-preview .dz-image{border-radius:20px;overflow:hidden;width:120px;height:120px;position:relative;display:block;z-index:10}.dropzone .dz-preview .dz-image img{display:block}.dropzone .dz-preview.dz-success .dz-success-mark{animation:passing-through 3s cubic-bezier(0.77, 0, 0.175, 1)}.dropzone .dz-preview.dz-error .dz-error-mark{opacity:1;animation:slide-in 3s cubic-bezier(0.77, 0, 0.175, 1)}.dropzone .dz-preview .dz-success-mark,.dropzone .dz-preview .dz-error-mark{pointer-events:none;opacity:0;z-index:500;position:absolute;display:block;top:50%;left:50%;margin-left:-27px;margin-top:-27px;background:rgba(0,0,0,.8);border-radius:50%}.dropzone .dz-preview .dz-success-mark svg,.dropzone .dz-preview .dz-error-mark svg{display:block;width:54px;height:54px;fill:#fff}.dropzone .dz-preview.dz-processing .dz-progress{opacity:1;transition:all .2s linear}.dropzone .dz-preview.dz-complete .dz-progress{opacity:0;transition:opacity .4s ease-in}.dropzone .dz-preview:not(.dz-processing) .dz-progress{animation:pulse 6s ease infinite}.dropzone .dz-preview .dz-progress{opacity:1;z-index:1000;pointer-events:none;position:absolute;height:20px;top:50%;margin-top:-10px;left:15%;right:15%;border:3px solid rgba(0,0,0,.8);background:rgba(0,0,0,.8);border-radius:10px;overflow:hidden}.dropzone .dz-preview .dz-progress .dz-upload{background:#fff;display:block;position:relative;height:100%;width:0;transition:width 300ms ease-in-out;border-radius:17px}.dropzone .dz-preview.dz-error .dz-error-message{display:block}.dropzone .dz-preview.dz-error:hover .dz-error-message{opacity:1;pointer-events:auto}.dropzone .dz-preview .dz-error-message{pointer-events:none;z-index:1000;position:absolute;display:block;display:none;opacity:0;transition:opacity .3s ease;border-radius:8px;font-size:13px;top:130px;left:-10px;width:140px;background:#b10606;padding:.5em 1em;color:#fff}.dropzone .dz-preview .dz-error-message:after{content:"";position:absolute;top:-6px;left:64px;width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;border-bottom:6px solid #b10606}/*# sourceMappingURL_DISABLED=dropzone.css.map */.github-logo {
  height: 1.75rem;
}.spinner {
  width: 32px;
  height: 32px;
  border: 5px solid #FFF;
  border-bottom-color: transparent;
  border-radius: 50%;
  display: inline-block;
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
}
@keyframes rotation {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
.waitLoader {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: block;
  position: relative;
  color: #FFF;
  box-sizing: border-box;
  animation: animloader 1s linear infinite alternate;
}
@keyframes animloader {
  0% {
    box-shadow: -38px -6px, -14px 6px, 14px -6px;
  }
  33% {
    box-shadow: -38px 6px, -14px -6px, 14px 6px;
  }
  66% {
    box-shadow: -38px -6px, -14px 6px, 14px -6px;
  }
  100% {
    box-shadow: -38px 6px, -14px -6px, 14px 6px;
  }
}.research-purpose {
  white-space: nowrap;
  word-wrap: break-word;
  overflow: hidden;
  text-overflow: ellipsis;
}[data-bs-theme="dark"] .d-dark-none {
  display: none;
}
[data-bs-theme="dark"] .d-dark-block {
  display: block;
}
[data-bs-theme="dark"] .d-dark-inline {
  display: inline;
}
[data-bs-theme="light"] .d-light-none {
  display: none;
}
[data-bs-theme="light"] .d-light-block {
  display: block;
}
[data-bs-theme="light"] .d-light-inline {
  display: inline;
}body {
  /*padding: 10px;*/
  /*font-family: sans-serif;*/
}

/* 파일 트리 스타일 - Bootstrap 호환 */
.file-tree-container {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--bs-border-color, #dee2e6);
  border-radius: var(--bs-border-radius, 0.375rem);
  padding: 1rem;
  background-color: var(--bs-body-bg, #fff);
}

.file-tree {
  font-family: var(--bs-font-monospace, 'SFMono-Regular', 'Menlo', 'Monaco', 'Consolas', 'Liberation Mono', 'Courier New', monospace);
  font-size: 0.875rem;
  line-height: 1.5;
}

.folder {
  cursor: pointer;
  user-select: none;
  padding: 0.5rem 0.75rem;
  margin: 0.125rem 0;
  border-radius: var(--bs-border-radius, 0.375rem);
  background-color: var(--bs-gray-100, #f8f9fa);
  border: 1px solid var(--bs-border-color, #e9ecef);
  transition: all 0.15s ease-in-out;
  display: flex;
  align-items: center;
  position: relative;
}

.folder:hover {
  background-color: var(--bs-gray-200, #e9ecef);
  border-color: var(--bs-gray-300, #dee2e6);
  transform: translateY(-1px);
  box-shadow: var(--bs-box-shadow-sm, 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075));
}

.folder-icon {
  margin-right: 0.5rem;
  font-size: 1rem;
  flex-shrink: 0;
}

.folder-contents {
  margin-left: 1rem;
  border-left: 2px solid var(--bs-border-color, #e9ecef);
  padding-left: 0.5rem;
}

.file {
  padding: 0.5rem 0.75rem 0.5rem 2rem;
  margin: 0.125rem 0;
  border-radius: var(--bs-border-radius, 0.375rem);
  background-color: var(--bs-body-bg, #fff);
  border: 1px solid var(--bs-border-color, #e9ecef);
  transition: all 0.15s ease-in-out;
  display: flex;
  align-items: center;
  position: relative;
}

.file:hover {
  background-color: var(--bs-gray-50, #f8f9fa);
  border-color: var(--bs-gray-300, #dee2e6);
}

.file-actions {
  margin-left: auto;
  display: flex;
  gap: 0.25rem;
}

.file-actions .btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  line-height: 1.2;
}

.file-info {
  color: var(--bs-secondary-color, #6c757d);
  font-size: 0.75rem;
  margin-left: 0.5rem;
  white-space: nowrap;
}

.file-name {
  flex: 1;
  margin-right: 0.5rem;
  word-break: break-all;
}

.video-file-name {
  cursor: pointer;
  color: var(--bs-primary, #0d6efd);
  text-decoration: none;
  transition: color 0.15s ease-in-out;
}

.video-file-name:hover {
  color: var(--bs-primary, #0d6efd);
  text-decoration: underline;
}

.file-icon {
  margin-right: 0.5rem;
  font-size: 1rem;
  flex-shrink: 0;
}

.collapsed {
  display: none;
}

/* 비디오 파일 스타일 - Bootstrap 호환 */
.video-file {
  cursor: pointer;
  transition: all 0.15s ease-in-out;
}

.video-file:hover {
  background-color: var(--bs-info-bg-subtle, #e3f2fd) !important;
  border-color: var(--bs-info, #0dcaf0) !important;
  transform: translateY(-1px);
  box-shadow: var(--bs-box-shadow-sm, 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075));
}

/* 비디오 모달 스타일 - Bootstrap 호환 */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.video-modal-content {
  background: var(--bs-body-bg, white);
  border-radius: var(--bs-border-radius-lg, 0.5rem);
  max-width: 90vw;
  max-height: 90vh;
  width: 100%;
  max-width: 50rem;
  box-shadow: var(--bs-box-shadow-lg, 0 1rem 3rem rgba(0, 0, 0, 0.175));
  overflow: hidden;
  border: 1px solid var(--bs-border-color, #dee2e6);
}

.video-modal-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--bs-border-color, #dee2e6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bs-gray-100, #f8f9fa);
}

.video-modal-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--bs-body-color, #333);
}

.video-modal .btn-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--bs-secondary-color, #6c757d);
  padding: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--bs-border-radius, 0.375rem);
  transition: all 0.15s ease-in-out;
}

.video-modal .btn-close:hover {
  background-color: var(--bs-gray-200, #e9ecef);
  color: var(--bs-body-color, #000);
}

.video-modal-body {
  padding: 1.25rem;
  text-align: center;
}

.video-loading {
  padding: 2.5rem;
}

.video-error {
  padding: 1.25rem;
}

.video-modal-footer {
  padding: 1.25rem;
  border-top: 1px solid var(--bs-border-color, #dee2e6);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  background-color: var(--bs-gray-100, #f8f9fa);
}

/* 반응형 디자인 - Bootstrap breakpoints */
@media (max-width: 768px) {
  .video-modal {
    padding: 0.625rem;
  }
  
  .video-modal-content {
    max-width: 95vw;
    max-height: 95vh;
  }
  
  .video-modal-header,
  .video-modal-body,
  .video-modal-footer {
    padding: 1rem;
  }
  
  .video-modal-title {
    font-size: 1.125rem;
  }
}