    /* --- Secondary Button --- */
    .btn-secondary {
      background: #fff;
      color: #0088cc;
      padding: 12px 24px;
      border-radius: 6px;
      border: none;
      font-weight: bold;
      font-size: 16px;
      transition: background 0.2s, color 0.2s;
      cursor: pointer;
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    }
    .btn-secondary:hover {
      background: #f2f2f2;
      color: #0073aa;
    }

    /* --- Account Info Two Columns --- */
    .account-info-table,
    .info-card-table {
      width: 100%;
      max-width: 500px;
      margin: 0 auto 0 auto;
      border-collapse: separate;
      border-spacing: 0 10px;
    }
    .account-info-table th,
    .info-card-table th {
      text-align: left;
      font-size: 22px;
      color: #fff;
      padding-bottom: 10px;
      letter-spacing: 0.5px;
    }
    .account-info-table td,
    .info-card-table td {
      padding: 8px 12px;
      font-size: 18px;
      color: #fff;
      vertical-align: middle;
    }
    .account-info-table td.key,
    .info-card-table td.key {
      text-align: left;
      color: #b0c4d4;
      font-weight: 500;
      width: 45%;
    }
    .account-info-table td.value,
    .info-card-table td.value {
      text-align: left;
      font-weight: 600;
      width: 55%;
    }
    .info-card.account,
    .info-card.usage,
    .info-card.connection {
      background: rgba(0,136,204,0.08);
      border: 1px solid rgba(0,136,204,0.15);
      border-radius: 10px;
      padding: 32px 24px 24px 24px;
      margin-bottom: 32px;
      box-shadow: 0 2px 12px rgba(0,136,204,0.04);
    }
    .info-card-table .value input[readonly] {
      width: 100%;
      padding: 8px;
      border: 2px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      border-radius: 6px;
      font-size: 16px;
      box-sizing: border-box;
    }
    .info-card-table .value button {
      margin-top: 10px;
    }
    .progress-bar {
      width: 100%;
      height: 10px;
      background: rgba(255, 255, 255, 0.12);
      border-radius: 999px;
      overflow: hidden;
      margin-top: 8px;
    }
    .progress-fill {
      height: 100%;
      background: linear-gradient(90deg, #00b4db, #0083b0);
      border-radius: 999px;
    }
    /* --- Login Tabs --- */
    .login-tabs {
      display: flex;
      justify-content: center;
      margin-bottom: 30px;
      gap: 10px;
    }
    .innter-tab {
        border-bottom: 1px solid #5f7279;
    }
    .tab-btn {
      background: rgba(255,255,255,0.08);
      color: #fff;
      border: none;
      padding: 12px 32px;
      font-size: 18px;
      border-radius: 6px 6px 0 0;
      cursor: pointer;
      font-weight: bold;
      transition: background 0.2s, color 0.2s;
      outline: none;
    }
    .tab-btn.active, .tab-btn:focus {
      background: #0088cc;
      color: #fff;
      box-shadow: 0 4px 16px rgba(0,136,204,0.15);
      z-index: 2;
    }
    .tab-btn:not(.active):hover {
      background: rgba(0,136,204,0.15);
      color: #fff;
    }
    /* --- Registration & Forms --- */
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      margin-bottom: 8px;
      color: #fff;
      font-weight: 500;
    }
    .form-group input {
      width: 100%;
      max-width: 350px;
      padding: 12px;
      border: 2px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      border-radius: 6px;
      font-size: 16px;
      transition: all 0.3s;
    }
    .form-group input::placeholder {
      color: rgba(255, 255, 255, 0.5);
    }
    .form-group input:focus {
      outline: none;
      border-color: #0088cc;
      background: rgba(255, 255, 255, 0.15);
    }

    .alert {
      padding: 15px;
      border-radius: 6px;
      margin-bottom: 20px;
      font-size: 16px;
      text-align: left;
    }
    .alert-success {
      background: rgba(76, 175, 80, 0.2);
      color: #4CAF50;
      border: 1px solid #4CAF50;
    }
    .alert-error, .alert-danger {
      background: rgba(244, 67, 54, 0.2);
      color: #ff6b6b;
      border: 1px solid #f44336;
    }
    .alert-warning {
      background: rgba(255, 193, 7, 0.2);
      color: #FFC107;
      border: 1px solid #FFC107;
    }
    .alert-info {
      background: rgba(33, 150, 243, 0.2);
      color: #2196F3;
      border: 1px solid #2196F3;
    }

    .text-center {
      text-align: center;
      margin-top: 20px;
      color: rgba(255, 255, 255, 0.8);
    }

    button.btn, button.btn-primary {
      display: inline-block;
      padding: 12px 24px;
      background-color: #0088cc;
      color: #fff;
      text-decoration: none;
      font-weight: bold;
      border-radius: 6px;
      border: none;
      cursor: pointer;
      transition: background 0.3s ease;
      font-size: 16px;
    }
    button.btn:hover, button.btn-primary:hover {
      background-color: #0073aa;
    }
    body {
      font-family: 'Segoe UI', sans-serif;
      background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
      color: #fff;
      margin: 0;
      padding: 0;
      text-align: center;
    }
    .container {
      padding: 60px 20px;
      max-width: 900px;
      margin: auto;
    }
    .logo {
      max-width: 120px;
    }
    h1 {
      font-size: 48px;
      margin-bottom: 20px;
    }
    p {
      font-size: 18px;
      line-height: 1.6;
      margin-bottom: 30px;
    }
    .features {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 30px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .features img {
      flex-shrink: 0;
    }
    ul {
      text-align: left;
      margin: 0;
      padding: 0;
      list-style: none;
      max-width: 600px;
    }
    ul li {
      margin-bottom: 10px;
    }
    ul li::before {
      content: "✓";
      color: #4CAF50;
    }
    a{
        color: #0088cc;
        text-decoration: none;
    }
    a:hover {
        text-decoration: underline;
    }
    .pay-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      margin-top: 24px;
    }
    .pay-card {
      background: rgba(0,136,204,0.08);
      border: 1px solid rgba(0,136,204,0.15);
      border-radius: 12px;
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      align-items: flex-start;
      text-align: left;
      box-shadow: 0 2px 12px rgba(0,136,204,0.04);
    }
    .pay-card-title {
      font-size: 24px;
      font-weight: 700;
    }
    .pay-card-price {
      font-size: 32px;
      font-weight: 700;
      color: #7fd7ff;
    }
    .pay-card-meta {
      color: #d9eef9;
      font-size: 16px;
    }
    a.btn-primary {
      display: inline-block;
      padding: 12px 24px;
      background-color: #0088cc;
      color: #fff;
      text-decoration: none;
      font-weight: bold;
      border-radius: 6px;
      transition: background 0.3s ease;
    }
    a.btn-primary:hover {
      background-color: #0073aa;
    }
    footer {
      margin-top: 60px;
      font-size: 14px;
      color: #ccc;
    }

/* Payment page redesign */
.pay-account-card .pay-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
}

.pay-select-form {
  margin-top: 16px;
}

.pay-option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.pay-option {
  position: relative;
  width: 100%;
  text-align: left;
  background: rgba(0, 136, 204, 0.08);
  border: 2px solid rgba(0, 136, 204, 0.2);
  border-radius: 14px;
  padding: 18px;
  color: #fff;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.pay-option:hover {
  transform: translateY(-2px);
  border-color: rgba(127, 215, 255, 0.7);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.2);
}

.pay-option.is-selected {
  border-color: #7fd7ff;
  box-shadow: 0 0 0 2px rgba(127, 215, 255, 0.35), 0 10px 22px rgba(0, 0, 0, 0.25);
}

.pay-option-premium {
  background: linear-gradient(160deg, rgba(255, 197, 61, 0.16), rgba(0, 136, 204, 0.12));
  border-color: rgba(255, 197, 61, 0.45);
}

.pay-option-premium.is-selected {
  border-color: #ffd166;
  box-shadow: 0 0 0 2px rgba(255, 209, 102, 0.35), 0 10px 24px rgba(0, 0, 0, 0.3);
}

.pay-option-badge {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 209, 102, 0.22);
  border: 1px solid rgba(255, 209, 102, 0.6);
  color: #ffe39a;
  font-size: 13px;
  font-weight: 700;
}

.pay-option-main,
.pay-option-sub {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pay-option-main {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.pay-option-sub {
  font-size: 15px;
  color: #d9eef9;
}

.pay-icon {
  font-size: 16px;
  flex: 0 0 auto;
}

.pay-actions {
  margin-top: 20px;
  display: flex;
  justify-content: center;
}

.pay-buy-btn {
  min-width: 280px;
}

@media (max-width: 640px) {
  .pay-buy-btn {
    width: 100%;
    min-width: 0;
  }
}


/* Payment return statuses */
.pay-state {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
}

.pay-state-good {
  background: rgba(76, 175, 80, 0.18);
  color: #7fe38a;
  border: 1px solid rgba(76, 175, 80, 0.55);
}

.pay-state-warn {
  background: rgba(255, 193, 7, 0.2);
  color: #ffd36b;
  border: 1px solid rgba(255, 193, 7, 0.65);
}

.pay-state-bad {
  background: rgba(244, 67, 54, 0.2);
  color: #ff8a80;
  border: 1px solid rgba(244, 67, 54, 0.7);
}

.pay-key {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.pay-key-icon {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

@media (max-width: 768px) {
  .container {
    padding: 30px 14px;
  }

  h1 {
    font-size: 32px;
    line-height: 1.2;
  }

  .info-card.account,
  .info-card.usage,
  .info-card.connection {
    padding: 18px 14px;
    margin-bottom: 16px;
  }

  .account-info-table,
  .info-card-table {
    max-width: 100%;
    border-spacing: 0;
    display: block;
  }

  .account-info-table tr,
  .info-card-table tr {
    display: block;
    padding: 10px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .account-info-table tr:first-child,
  .info-card-table tr:first-child {
    border-top: none;
    padding-top: 0;
  }

  .account-info-table th,
  .info-card-table th {
    display: block;
    font-size: 20px;
    padding-bottom: 6px;
  }

  .account-info-table td,
  .info-card-table td {
    display: block;
    width: 100% !important;
    padding: 3px 0;
    font-size: 15px;
  }

  .account-info-table td.key,
  .info-card-table td.key {
    font-size: 13px;
    font-weight: 700;
    color: #b0c4d4;
  }

  .account-info-table td.value,
  .info-card-table td.value {
    font-size: 15px;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .info-card-table .value input[readonly] {
    font-size: 14px;
  }
}
