body {
      max-width: 1400px;
      height: 100vh;
      margin: 0;
      padding: 0;
      list-style: none;
      font-family: Arial, sans-serif;
      background-color: #f4f4f4;
}

header{
      display: flex;
      flex-direction: row;
      justify-content:flex-start;
      align-items: center;
      margin-bottom: 0;
}

#app-title {
      font-size: 20px;
      font-weight: bold;
      color: #333;
      margin-left: 250px;
}

#main-content {
      width: 100%;
      height: 100%;
      padding: 10px;
      background-color: #fff;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
      display: inline-block;
}

#bookmark-section {
      padding: 0px 10px;
      height: 150%;
      border: 1px solid #ccc;
      border-radius: 5px;
      background-color: #fafafa;
      display: grid;
      grid-template-columns: 1fr 2fr;;
      gap: 15px;
}

#add-bookmark-section {
      background: linear-gradient(135deg, #010206 0%, #6527a3 100%);
      height: 500px;
      margin-top: 25px;
      padding: 35px;
      border-radius: 12px;
      box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

#add-bookmark-section h2 {
      color: #fff;
      margin: 0 0 20px 0;
      font-size: 24px;
      font-weight: 600;
}

#add-bookmark-form {
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 5px;
}

#add-bookmark-section label {
      margin: 10px 0 5px 0;
      font-weight: 500;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.9);
      text-transform: uppercase;
      letter-spacing: 0.5px;
}

#add-bookmark-section input {
      padding: 14px 16px;
      border: none;
      border-radius: 8px;
      background-color: rgba(255, 255, 255, 0.95);
      font-size: 15px;
      transition: all 0.3s ease;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

#add-bookmark-section input:focus {
      outline: none;
      background-color: #fff;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
      transform: translateY(-2px);
}

#add-bookmark-section input::placeholder {
      color: #999;
}

#add-bookmark-section button {
      margin-top: 60px;
      padding: 16px 24px;
      font-size: 16px;
      font-weight: 600;
      background: #fff;
      color: #010206;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      text-transform: uppercase;
      letter-spacing: 1px;
}

#add-bookmark-section button:hover {
      transform: translateY(-3px);
      box-shadow: 0 6px 25px rgba(0, 0, 0, 0.25);
      background: #f8f9ff;
}

#add-bookmark-section button:active {
      transform: translateY(-1px);
}

#user-info-section {
      padding: 10px 0px;
      display: flex;
      flex-direction: row;
      align-items: center;
      gap: 10px;
      justify-content: space-around;
}

#user-name {
      font-size: large;
      font-weight: bold;
}

#user-selection-section {
      display: flex;
      flex-direction: row;
      align-items: center;
      gap: 20px;
      padding: 20px 25px;
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
      border: 1px solid #e8e8e8;
}

#user-selection-section label {
      font-size: 18px;
      font-weight: 600;
      color: #333;
      margin: 0;
      white-space: nowrap;
}

#user-selection-section select {
      padding: 12px 20px;
      border: 2px solid #566fdc;
      background: #fff;
      color: #333;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      min-width: 180px;
      appearance: none;
      -webkit-appearance: none;
      -moz-appearance: none;
      background-repeat: no-repeat;
      background-position: right 15px center;
      padding-right: 40px;
      transition: all 0.3s ease;
}

#user-selection-section select:hover {
      border-color: #764ba2;
      box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

#user-selection-section select:focus {
      outline: none;
      border-color: #764ba2;
      box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

#user-selection-section select option {
      background-color: #fff;
      color: #333;
      padding: 10px;
}

#bookmark-list-section {
      border-left: 2px solid #161616;
      height: 100%;
      padding-left: 15px;
}

#bookmark-list-section h2 {
      margin-bottom: 20px;
      color: #333;
}

#bookmark-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 15px;
}

#bookmark-list li {
      background-color: #fff;
      border: 1px solid #e0e0e0;
      border-radius: 8px;
      padding: 15px 20px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
      transition: transform 0.2s, box-shadow 0.2s;
}

#bookmark-list li:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.bookmark-list-item a {
      font-size: 18px;
      font-weight: 600;
      color: #256dda;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 8px;
}

.bookmark-list-item a .link-icon {
      flex-shrink: 0;
}

.bookmark-list-item a:hover {
      text-decoration: underline;
      color: #1a4fa3;
}

.bookmark-list-item p {
      margin: 0;
      color: #666;
      font-size: 14px;
      line-height: 1.5;
}

#bookmark-list h3 {
      color: #888;
      font-weight: normal;
      text-align: center;
      padding: 40px 0;
}


.bookmark-list-item {
      position: relative;
      padding-bottom: 45px;
}


.like-bookmark,
.copy-link,
.delete-bookmark {
      padding: 8px 16px;
      border: none;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      margin-right: 10px;
      margin-top: 10px;
}


.like-bookmark {
      background-color: #0056b3;
      color: #fff;
}

.like-bookmark:hover {
      background-color: #2563eb;
}

.copy-link {
      background-color: #218838;
      color: #fff;
}

.copy-link:hover {
      background-color: #04a241;
}

.delete-bookmark {
      background-color: #ef4444;
      color: #fff;
}

.delete-bookmark:hover {
      background-color: #dc2626;
}

#bookmark-timestamp {
      position: absolute;
      bottom: 5px;
      left: 0;
      font-size: 12px;
      color: #5f5f5f;
      margin-top: 0px;
}

.screen-reader-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
}

#form-feedback {
      margin-top: 10px;
      font-size: 14px;
      color: #fff;
      padding: 12px 24px;
      border-radius: 6px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.15);
      display: none;
}

.no-data{
      font-size: 20px;
      font-weight: 500;
      color: #888;
      font-weight: bolder;
      text-align: center;
      padding: 40px 0;
}