:root {
      --bg: #ffffff;
      --text: #0a0a0a;
      --muted: #333333;
      --panel: #eeeeee;
      --border: rgba(0, 0, 0, 0.12);
      --btn-bg: transparent;
      --btn-border: rgba(0, 0, 0, 0.12);
      --panelbg: #e2dada;
  }

  .theme-dark {
      --bg: #000000;
      --text: #fffcfc;
      --muted: #ffffff;
      --panel: #f4f4f4;
      --border: rgba(255, 255, 255, 0.08);
      --btn-bg: transparent;
      --btn-border: rgba(255, 255, 255, 0.08);
      --panelbg: #2d1515ab;
  }

  body {
      background: var(--bg);
      color: var(--text);
      text-align: center;
      justify-content: center;
      transition-duration: 0.5s;
  }


  .error {
      color: red;

  }

  .shake {
      animation: shake 0.3s ease;
  }

  @keyframes shake {
      0% {
          transform: translateX(0);
      }

      20% {
          transform: translateX(-5px);
      }

      40% {
          transform: translateX(5px);
      }

      60% {
          transform: translateX(-5px);
      }

      80% {
          transform: translateX(5px);
      }

      100% {
          transform: translateX(0);
      }
  }


  .expand-btn {
      margin-top: 12px;
      background: var(--btn-bg);
      border: none;
      color: var(--text);
      font-weight: 600;
      font-size: 14px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
  }

  .expand-btn .arrow {
      display: inline-block;
      transition: transform 0.25s ease;
  }

  .blog-card.expanded .arrow {
      transform: rotate(180deg);
  }

  .blog-card-more {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      margin-top: 12px;
      background: transparent;
  }

  .blog-card.expanded .blog-card-more {
      max-height: 1000px;
  }

  .blog-card-more p {
      color: var(--muted);
      margin-bottom: 8px;
  }

  .button {
      position: relative;
      display: inline-block;
      margin: 20px;
  }

  .button a {
      color: white;
      font-family: Helvetica, sans-serif;
      font-weight: bold;
      font-size: 36px;
      text-align: center;
      text-decoration: none;
      background-color: #FFA12B;
      display: block;
      position: relative;
      padding: 20px 40px;

      -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
      text-shadow: 0px 1px 0px #000;
      filter: dropshadow(color=#000, offx=0px, offy=1px);

      -webkit-box-shadow: inset 0 1px 0 #FFE5C4, 0 10px 0 #915100;
      -moz-box-shadow: inset 0 1px 0 #FFE5C4, 0 10px 0 #915100;
      box-shadow: inset 0 1px 0 #FFE5C4, 0 10px 0 #915100;

      -webkit-border-radius: 5px;
      -moz-border-radius: 5px;
      border-radius: 5px;
  }

  .button a:active {
      top: 10px;
      background-color: #F78900;

      -webkit-box-shadow: inset 0 1px 0 #FFE5C4, inset 0 -3px 0 #915100;
      -moz-box-shadow: inset 0 1px 0 #FFE5C4, inset 0 -3pxpx 0 #915100;
      box-shadow: inset 0 1px 0 #FFE5C4, inset 0 -3px 0 #915100;
  }

  .button:after {
      content: "";
      height: 100%;
      width: 100%;
      padding: 4px;
      position: absolute;
      bottom: -15px;
      left: -4px;
      z-index: -1;
      background-color: #2B1800;
      -webkit-border-radius: 5px;
      -moz-border-radius: 5px;
      border-radius: 5px;
  }

  .more-img {
      width: 100%;
      max-width: 600px;
      display: block;
      margin: 8px 0;
      border-radius: 8px;
  }

  #theme-toggle {
      background: var(--btn-bg);
      color: var(--text);
      border: 1px solid var(--btn-border);
      padding: 6px 10px;
      border-radius: 6px;
      cursor: pointer;
      font-weight: 600;
  }

  .center {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      animation-duration: 2.4s;
  }

  .animcenter {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      margin-top: 20px;
      animation-duration: 2.4s;
      border-radius: 30px;
      width: 600px;
  }

  .calc {
      transform-style: preserve-3d;
      background: var(--panel);
      border: 1px solid var(--border);
      padding: 12px;
      border-radius: 20px;
      cursor: pointer;
      transition-duration: 0.3s;
  }

  .calc:hover {
      transition-duration: 0.3s;
      transform: scale(1.1);
  }

  .calc:active {
      transition-duration: 0.2s;
      transform: scale(0.9);
      background-color: rgb(240, 231, 214);
  }

  .display {
      transform-style: preserve-3d;
      background: var(--panel);
      border: 1px solid var(--border);
      padding: 12px;
      border-radius: 20px;
      transition-duration: 0.3s;
  }

  #display {
      overflow-x: auto;
      white-space: nowrap;
  }

  .display.error {
      color: #ff4d4d;
      border-color: #ff4d4d;
  }

  .panel {
      background-color: var(--panelbg);
      padding: 20px;
      border-radius: 20px;
      animation-duration: 0.9s;
  }



  .hamburger {
      position: fixed;
      top: 12px;
      left: 12px;
      width: 24px;
      height: 18px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      z-index: 9999;
  }

  .hamburger span {
      display: block;
      width: 100%;
      height: 3px;
      background: var(--text);
      border-radius: 2px;
      pointer-events: none;
  }

  .hamburger p {
      position: absolute;
      top: 22px;
      left: -10px;
      font-size: 10px;
      color: var(--text);
      opacity: 0;
  }

  .tooltip {
      position: absolute;
      left: 36px;
      top: 50%;
      transform: translateY(-50%);
      background: var(--panel);
      color: var(--text);
      padding: 4px 8px;
      border-radius: 6px;
      font-size: 12px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .hamburger:hover .tooltip {
      opacity: 1;
      transform: translate(4px, -50%);
  }