@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg);
  transition: background 0.3s ease, color 0.3s ease;
  padding: 20px;
}

html[data-color-mode="light"] {
  --bg: #f2f2f2;
  --box-bg: #ffffff;
  --text: #222;
  --input-bg: #e9e9e9;
  --btn-bg: #28a745;
  --btn-color: #fff;
  --back-btn-bg: #007bff;
  --placeholder-text: #888;
}

html[data-color-mode="dark"] {
  --bg: #0a0a0a;
  --box-bg: #1e1e1e;
  --text: #fff;
  --input-bg: #333;
  --btn-bg: #28a745;
  --btn-color: #fff;
  --back-btn-bg: #007bff;
  --placeholder-text: #aaa;
}

dark-mode {
  position: fixed;
  top: 15px;
  right: 15px;
  z-index: 1000;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 15px 0;
  width: 100%;
  max-width: 400px;
  border: 1px solid var(--btn-bg);
  border-radius: 8px;
  padding: 5px;
  background: var(--box-bg);
  transition: border-color 0.2s ease;
}

.nav-links a {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  padding: 12px 15px;
  background: var(--btn-bg);
  border-radius: 6px;
  transition: background 0.2s ease, color 0.2s ease;
  text-align: center;
  flex: 1;
  white-space: nowrap;
}

.nav-links a:hover {
  background: #007bff;
  color: #fff;
}

.form-box {
  background: var(--box-bg);
  padding: 30px;
  width: 100%;
  max-width: 400px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  margin: 20px 0;
}

.form-box h2 {
  text-align: center;
  color: var(--text);
  margin-bottom: 25px;
  font-size: 26px;
  font-weight: 600;
}

.input-box {
  margin-bottom: 20px;
  position: relative;
}

.input-box label {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 400;
  font-size: 15px;
  white-space: nowrap;
}

.input-box input, .input-box select {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background-color: var(--input-bg);
  color: var(--text);
  outline: none;
  font-size: 15px;
}

.input-box input::placeholder {
  color: var(--placeholder-text);
  font-size: 14px;
}

.eye-icon {
  position: absolute;
  right: 12px;
  top: 70%;
  transform: translateY(-50%);
  cursor: pointer;
  color: var(--text);
  font-size: 20px;
}

.btn, .back-btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  font-size: 16px;
  transition: background 0.2s ease;
}

.btn {
  background: var(--btn-bg);
  color: var(--btn-color);
  margin-bottom: 12px;
}

.back-btn {
  background: var(--back-btn-bg);
  color: #fff;
}

.back-btn:hover {
  background: #0056b3;
}

.error-message {
  color: red;
  text-align: center;
  margin-bottom: 15px;
  font-size: 14px;
}

.success-message {
  color: green;
  text-align: center;
  margin-bottom: 15px;
  font-size: 14px;
}

.logo-container {
  text-align: center;
}

.logo-container img {
  width: 100%;
  max-width: 180px;
  height: auto;
  display: block;
  margin: 0 auto;
}

a {
  text-decoration: none;
}

marquee {
  width: 100%;
  max-width: 400px;
  margin: 10px 0;
  padding: 8px;
  background: var(--box-bg);
  color: var(--text);
  font-size: 14px;
  border-radius: 6px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

@media (max-width: 768px) {
  .form-box {
    max-width: 350px;
    padding: 25px;
  }

  .form-box h2 {
    font-size: 24px;
  }

  .btn, .back-btn {
    font-size: 15px;
    padding: 10px;
  }

  dark-mode {
    top: 10px;
    right: 10px;
  }

  .input-box label {
    font-size: 14px;
  }

  .nav-links {
    gap: 8px;
    padding: 4px;
  }

  .nav-links a {
    font-size: 15px;
    padding: 10px 12px;
  }

  marquee {
    max-width: 350px;
    font-size: 13px;
    padding: 6px;
  }
}

@media (max-width: 480px) {
  body {
    padding: 15px;
  }

  .form-box {
    max-width: 300px;
    padding: 20px;
  }

  .form-box h2 {
    font-size: 20px;
  }

  .input-box input, .input-box select {
    padding: 10px;
    font-size: 14px;
  }

  .btn, .back-btn {
    font-size: 14px;
    padding: 8px;
  }

  .input-box label {
    font-size: 13px;
  }

  .logo-container img {
    max-width: 150px;
  }

  .nav-links {
    gap: 6px;
    flex-wrap: wrap;
    padding: 3px;
  }

  .nav-links a {
    font-size: 14px;
    padding: 8px 10px;
  }

  marquee {
    max-width: 300px;
    font-size: 12px;
    padding: 5px;
  }
}

.footer {
    width: 100%;
    max-width: 400px;
    margin: 20px auto;
    text-align: center;
    color: var(--text);
    font-family: 'Poppins', sans-serif;
}

.footer-links {
    margin-bottom: 15px;
}

.footer-links a {
    color: var(--text);
    font-size: 14px;
    margin: 0 10px;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--btn-bg);
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.social-icon {
    width: 24px;
    height: 24px;
    color: var(--text);
    transition: color 0.2s ease;
}

.social-icon:hover {
    color: var(--btn-bg);
}

.footer-text {
    font-size: 12px;
    color: var(--placeholder-text);
}

@media (max-width: 480px) {
    .footer {
        max-width: 300px;
    }

    .footer-links a {
        font-size: 13px;
        margin: 0 8px;
    }

    .social-icon {
        width: 20px;
        height: 20px;
    }

    .footer-text {
        font-size: 11px;
    }
}