================================================ */
:root,
[data-bs-theme=light] {
  --bs-body-bg: #ffffff;
  --bs-body-color: #494B5B;
  --bs-primary: #000000;
  --bs-primary-rgb: 33, 92, 92;
  --bs-primary-hover: #144B4B;
  --bs-primary-hover-rgb: 20, 75, 75;
  --bs-secondary: #ffffff;
  --bs-secondary-rgb: 255, 178, 102;
  --bs-heading-color: #020913;
  --inverse-color: #494B5B;
  --inverse-color-rgb: 73, 75, 91;
  --bs-link-color: var(--bs-primary);
  --nav-bg: #ffffff;
  --nav-color: #fff;
  --nav-hover-color: #1f6bff;
  --dropdown-bg: #ffae00da;
  --dropdown-color: #1f6bff;
  --dropdown-hover-bg: #f7f7f7;
  --nav-inverse: #000000;
  --nav-inverse-alt: #ffffff;
}

/* ----------------------------
   General layout
----------------------------- */
body {
  font: 1rem/1.7 "Inter", sans-serif;
  background-color: var(--bs-body-bg);
  color: var(--bs-body-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  margin: 0;
  padding: 2rem 1rem;
  box-sizing: border-box;
}

/* ----------------------------
   Form container
----------------------------- */
.survey-container {
  position: relative;
  width: 100%;
  max-width: 500px;
  background: #fff;
  border: 1px solid #e5e5e5;
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  padding: 2.5rem 2rem;
  box-sizing: border-box;
  transition: box-shadow 0.3s ease;
}

.survey-container:hover {
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.12);
}

/* ----------------------------
   Logo
----------------------------- */
.logo {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 200px;
  height: auto;
  object-fit: contain;
}

.logo:hover {
transform: scale(1.2);
transition-duration: 1s;
}

/* ----------------------------
   Headings
----------------------------- */
h1 {
  text-align: center;
  color: var(--bs-heading-color);
  font-size: 1.6rem;
  margin-top: 3rem;
  margin-bottom: 1.8rem;
}

h1:first-of-type {
  color: var(--bs-primary-hover);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

/* ----------------------------
   Labels & inputs
----------------------------- */
label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  color: var(--bs-heading-color);
}

input,
select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid #ccc;
  border-radius: 10px;
  margin-bottom: 1.2rem;
  font-size: 1rem;
  background-color: #fafafa;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--bs-primary-hover);
  background-color: #fff;
  box-shadow: 0 0 0 3px rgba(var(--bs-primary-hover-rgb), 0.1);
}

/* ----------------------------
   Radio buttons
----------------------------- */
.radio-group {
  display: flex;
  gap: 2rem;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.radio-group label {
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
}

.radio-group input[type="radio"] {
  accent-color: var(--bs-primary-hover);
  transform: scale(1.2);
}

/* ----------------------------
   Submit button
----------------------------- */
button {
  width: 100%;
  background-color: black;
  color: #fff;
  padding: 0.9rem;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

button:hover {
  background-color: rgb(11, 46, 11);
}

button:active {
  transform: scale(0.98);
}

/* ----------------------------
   Signup section
----------------------------- */
.signup-section {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.95rem;
  color: var(--inverse-color);
}

.signup-section a {
  color: var(--bs-primary-hover);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s, text-decoration 0.2s;
}

.signup-section a:hover {
  color: #1f6bff;
  text-decoration: underline;
}

/* ----------------------------
   Responsive design
----------------------------- */
@media (max-width: 600px) {
  .survey-container {
    padding: 1.8rem 1.2rem;
  }

  .logo {
    width: 160px;
    top: 15px;
    left: 15px;
  }

  h1 {
    font-size: 1.3rem;
  }

  input,
  select,
  button {
    font-size: 0.95rem;
  }

  .radio-group {
    gap: 1rem;
  }
}