:root {
      --primary: #2563eb;
      --bg: #f8fafc;
      --text: #1e293b;
      --card: #ffffff;
      --border: #e2e8f0;
    }

    * {
      box-sizing: border-box;
    }

html { scroll-behavior: smooth; }

    body {
      margin: 0;
      padding: 0;
      font-family: system-ui, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
    }

    header, footer {
      background: #fff;
      color: white;
      text-align: center;
      padding: 1.1rem;
    }

	header img{height:60px;}

    main {
      max-width: 900px;
      margin: 2rem auto;
      padding: 1rem;
    }

    h1, h2 {
      text-align: center;
    }

	.answer-page h1, .answer-page h2, .answer-page h3{  
  margin-top:60px;
  color: #24498e;
  border-left: 5px solid #24498e;
  padding-left: 1em;
  margin-bottom: 1em;
  letter-spacing: 0.05em;
}

    .card {
      background: var(--card);
      padding: 1.5rem;
      margin-bottom: 2rem;
      border: 1px solid var(--border);
      border-radius: 1rem;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    }

    .input-group {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
      margin-top: 1rem;
    }

    .input-box {
      display: flex;
      flex-direction: column;
    }

    input {
      padding: 0.75rem;
      font-size: 1rem;
      border: 1px solid var(--border);
      border-radius: 0.5rem;
      margin-top: 0.25rem;
    }

    .result {
      margin-top: 0.5rem;
      font-weight: bold;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 1rem;
    }

    th, td {
      border: 1px solid var(--border);
      padding: 0.5rem;
      text-align: center;
    }

    th {
      background: #f1f5f9;
    }

    .faq-item {
      margin-bottom: 1rem;
      border-bottom: 1px solid var(--border);
    }

    .faq-question {
      font-weight: 600;
      cursor: pointer;
      padding: 0.75rem;
      background: #f1f5f9;
      border-radius: 0.5rem;
    }

    .faq-answer {
      display: none;
      padding: 0.5rem 0.75rem;
    }

	footer{color:#000;}

    footer a {
      color: #000;
      margin: 0 10px;
      text-decoration: none;
    }

    @media (max-width: 600px) {
      .input-group {
        grid-template-columns: 1fr;
      }
    }

.wrapper {
  display: flex;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
  gap: 2rem;
}

.boxa{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
  height: fit-content;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
  margin-bottom:30px;
}

.sidebar {
  width: 220px;
  position: sticky;
  height: fit-content;
  top: 2rem;
}

.sidebar h3 {
  margin-top: 0;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.sidebar ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar li {
  margin-bottom: 0.75rem;
}

.sidebar a {
  text-decoration: none;
  color: var(--text);
}

.sidebar a:hover {
  color: var(--primary);
}

@media (max-width: 800px) {
  .wrapper {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    position: static;
  }
}