:root {
      --primary: #3a86ff;
      --secondary: #8338ec;
      --success: #06d6a0;
      --warning: #ffbe0b;
      --danger: #ef476f;
      --gray: #6c757d;
      --light: #f8f9fa;
      --dark: #212529;
      --bg-gradient: linear-gradient(135deg, #e0f2ff, #f8f9fa);
      --card-bg: white;
      --card-color: #212529;
      --toggle-bg: #fff;
      --toggle-border: #ddd;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', system-ui, sans-serif;
    }

    body {
      background: var(--bg-gradient);
      color: var(--dark);
      transition: background 0.3s ease, color 0.3s ease;
      min-height: 100vh;
    }

    .dark-mode {
      --bg-gradient: #121212;
      --card-bg: #1e1e1e;
      --card-color: #f5f5f5;
      --toggle-bg: #333;
      --toggle-border: #555;
    }

    .kiosk-container {
      max-width: 1080px;
      margin: auto;
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .mode-toggle {
      position: fixed;
      top: 20px;
      right: 20px;
      background: var(--toggle-bg);
      border: 1px solid var(--toggle-border);
      padding: 8px 15px;
      border-radius: 30px;
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      font-size: 0.9rem;
      color: inherit;
      z-index: 1000;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;
    }

    .hero-container {
        position: relative;
        text-align: center;
        margin-bottom: 30px;
    }

    .hero-image {
        width: 100%;
        max-height: 350px;
        object-fit: cover;
        border-radius: 12px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }

    header.hero-header {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 2;
        color: white;
        text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
    }

    .hero-logo {
        position: absolute;
        top: 15px;
        left: 20px;
        height: 50px;
        z-index: 3;
    }

    header.hero-header h1 {
        font-size: 2.4rem;
        font-weight: 800;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        color: #fff;
        text-shadow: 2px 2px 20px rgba(17, 5, 241, 0.7);
        margin: 0;
    }

    header.hero-header .subtitle {
        font-size: 1.1rem;
        color: #f1f1f1;
    }

    .billing-section {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
    }

    .card-box {
      background: var(--card-bg);
      color: var(--card-color);
      border-radius: 16px;
      padding: 25px;
      box-shadow: 0 6px 18px rgba(0,0,0,0.05);
    }

    .card-box h2 {
      font-size: 1.4rem;
      margin-bottom: 15px;
      color: var(--primary);
    }

    .card-box p {
      font-size: 0.95rem;
      margin-bottom: 10px;
    }

    .back-btn {
      margin-top: 15px;
      background: var(--primary);
      color: white;
      padding: 12px 25px;
      border: none;
      border-radius: 30px;
      cursor: pointer;
      font-size: 0.95rem;
      align-self: center;
      width: fit-content;
      display: flex;
      align-items: center;
      gap: 10px;
      transition: background 0.3s ease;
    }

    .back-btn:hover {
      background: #2f6ce0;
    }

    .status-bar {
      background: var(--card-bg);
      color: var(--card-color);
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      gap: 15px;
      padding: 20px;
      border-radius: 16px;
      box-shadow: 0 8px 18px rgba(0,0,0,0.05);
      margin-top: 30px;
    }

    .status-item {
      text-align: center;
    }

    .status-value {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--primary);
    }

    .status-label {
      font-size: 0.9rem;
      color: var(--gray);
    }

    /* Modal Styles */
    .modal {
      display: none;
      position: fixed;
      z-index: 2000;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      overflow: auto;
      background-color: rgba(0,0,0,0.6);
    }

    .modal-content {
      background-color: white;
      margin: 1% auto;
      padding: 25px;
      border-radius: 10px;
      max-width: 500px;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      position: relative;
    }

    .dark-mode .modal-content {
      background-color: #2c2c2c;
      color: white;
    }

    .close-btn {
      position: absolute;
      right: 15px;
      top: 10px;
      font-size: 1.5rem;
      cursor: pointer;
    }

    /* Responsive QR Image */
  #paymentModal #qrImage {
    width: 100%;
    max-width: 400px;
    height: auto;
    display: block;
    margin: 20px auto;
    border: 1px solid #ccc;
    padding: 10px;
    border-radius: 10px;
  }

  /* Payment details table */
  #paymentDetails table {
    width: 100%;
    border-collapse: collapse;
  }

  #paymentDetails td {
    padding: 6px 4px;
    vertical-align: top;
  }

  #paymentDetails td:first-child {
    font-weight: bold;
    width: 40%;
  }

  /* Done button */
  #paymentModal .back-btn {
    padding: 10px 18px;
    background-color: #1976d2;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
  }

  #paymentModal .back-btn:hover {
    background-color: #1565c0;
  }

  @media (max-width: 480px) {
    #paymentModal .modal-content {
      padding: 15px 20px;
    }

    #paymentModal .close-btn {
      font-size: 20px;
      top: 10px;
      right: 15px;
    }

    #paymentDetails td {
      font-size: 14px;
    }
  }