* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  background: #1a1a1a;
  color: #000;
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: start;
  min-height: 100vh;
  padding: 2rem 1rem;
}

.registration-wrapper {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  padding: 2rem;
  border-radius: 0 0 12px 12px;
  box-shadow: 0 0 15px rgba(0,0,0,0.3);
}

.registration-box h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
  font-weight: 600;
  color: #000;
  text-transform: uppercase;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tab-btn {
  display: inline-block;
  width: 100%;
  aspect-ratio: 3 / 1.1;
  text-align: center;
  font-size: 0.9rem;
  padding: 0.6rem;
  border-radius: 6px;
  background: #f2f2f2;
  color: #000;
  border: 1px solid #ccc;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.tab-btn:hover,
.tab-btn.active {
  background: #eaeaea;
  border-color: #999;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group label {
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  display: block;
  color: #000;
}

.form-group select,
.form-group input[type="text"],
.form-group input[type="password"] {
  width: 100%;
  padding: 0.6rem;
  border-radius: 4px;
  border: 1px solid #ccc;
  background: #fff;
  color: #000;
  font-size: 1rem;
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: #333;
}

.checkbox input {
  margin-top: 4px;
}

.checkbox a {
  color: #f2b400;
  text-decoration: underline;
}

.promo-toggle {
  font-size: 0.9rem;
  color: #888;
  cursor: pointer;
  text-decoration: underline;
}

.register-btn,
.register-btn-link {
  width: 100%;
  background: #f2b400;
  border: none;
  padding: 0.85rem;
  color: #000;
  font-size: 1rem;
  font-weight: bold;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: background 0.2s ease;
}

.register-btn:hover,
.register-btn-link:hover {
  background: #ffc42d;
}

/* Bonus box */
.bonus-box {
  position: relative;
  padding: 1.25rem 1rem;
  border: 2px solid #ccc;
  border-radius: 10px;
  background: #f9f9f9;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.bonus-box:hover,
.bonus-box.active {
  border-color: #f2b400;
  background: #fffbe5;
}

.bonus-box strong {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.2;
}

.bonus-box span {
  font-size: 0.95rem;
  line-height: 1.2;
}

.brand-banner img {
  width: 100%;
  max-width: 420px;
  margin: 0;
  display: block;
}

.login-hint {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: #777;
}

.login-hint a {
  color: #1a8cff;
  text-decoration: underline;
  font-weight: 500;
}

/* ✅ Mobile Adaptation */
@media (max-width: 480px) {
  .registration-wrapper {
    padding: 1.5rem 1rem;
  }

  .tab-btn {
    font-size: 0.8rem;
    padding: 0.5rem;
    aspect-ratio: 3 / 1.3;
  }

  .bonus-box {
    padding: 1rem 0.75rem;
  }

  .form-group select,
  .form-group input {
    font-size: 0.95rem;
  }

  .register-btn,
  .register-btn-link {
    font-size: 0.95rem;
    padding: 0.75rem;
  }
}