@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap');
    * { box-sizing: border-box; }
    body {
      font-family: 'Poppins', sans-serif;
      margin: 0;
      padding: 0;
      background: linear-gradient(135deg, #1b0f0f, #3a1a1a);
      color: #f5f5f5;
    }
    nav {
      background: rgba(43, 18, 18, 0.9);
      padding: 10px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 2px solid #ff2e2e;
      position: sticky;
      top: 0;
      z-index: 10;
    }
    nav h2 {
      color: #ff2e2e;
      margin: 0;
      text-shadow: 0 0 5px red;
    }
    .container {
      max-width: 420px;
      margin: 40px auto;
      padding: 20px;
      background: rgba(43, 18, 18, 0.9);
      border-radius: 12px;
      box-shadow: 0 0 15px rgba(255, 0, 0, 0.4);
    }
    input, select, button, textarea {
      width: 100%;
      padding: 10px;
      margin: 10px 0;
      border-radius: 8px;
      border: none;
      outline: none;
      font-size: 14px;
    }
    input, select, textarea {
      background: #1b0f0f;
      color: #fff;
    }
    button {
      background: linear-gradient(135deg, #ff2e2e, #9b1f1f);
      color: white;
      font-weight: bold;
      cursor: pointer;
    }
    .hidden { display: none; }
    .note {
      font-size: 13px;
      background: #3a1a1a;
      padding: 12px;
      border-radius: 10px;
      margin-top: 15px;
      line-height: 1.6;
      border-left: 3px solid #ff2e2e;
    }
    .list-item {
      background: #241212;
      margin: 8px 0;
      border-left: 4px solid #ff2e2e;
      border-radius: 6px;
      padding: 10px 12px;
      display: flex;
      flex-direction: column;
    }
    .list-item .info-row {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 8px;
    }
    .delete-btn {
      background: #8b0000;
      color: white;
      padding: 5px 10px;
      border-radius: 5px;
      font-size: 13px;
      margin-top: 8px;
      align-self: flex-end;
      cursor: pointer;
    }