:root {
  --navy: #0f172a;
  --red: #dc2626;
  --light: #f8fafc;
  --white: #ffffff;
  --gray: #e5e7eb;
  --dark_text: #334155;
  --accent: #4f5f7f;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Inter", Arial, sans-serif;
  background: var(--light);
  margin: 0;
  padding: 20px;
  color: var(--dark_text);
  min-height: 100vh;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.form_container {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 10px;
}

.back_prev_btn {
  display: inline-block;
  margin-bottom: 20px;
  padding: 10px 20px;
  background: var(--accent);
  color: var(--white);
  text-decoration: none;
  font-weight: bold;
  font-size: 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: 0.2s ease;
}

.back_prev_btn:hover {
  background: var(--navy);
}

.service_form {
  width: 100%;
  max-width: 480px;
  padding: 30px 25px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-inline: auto;
}

.service_form label {
  display: block;
  margin-bottom: 6px;
  font-weight: bold;
  font-size: 14px;
}

.service_form input,
.service_form select,
.service_form textarea {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--gray);
  border-radius: 8px;
  font-size: 14px;
  transition: border 0.2s ease, box-shadow 0.2s ease;
  color: var(--dark_text);
  box-sizing: border-box;
  background: var(--white);
}

.service_form input:focus,
.service_form select:focus,
.service_form textarea:focus {
  border-color: var(--navy);
  box-shadow: 0 0 5px rgba(15, 23, 42, 0.3);
  outline: none;
}

/* Custom select arrow */
.service_form select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding-right: 40px;
  background: var(--white)
    url('data:image/svg+xml;charset=US-ASCII,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 4 5"><path fill="%23334155" d="M0 0l2 3 2-3z"/></svg>')
    no-repeat right 12px center;
  background-size: 8px 10px;
}

/* Submit button */
.service_form button[type="submit"] {
  width: 100%;
  padding: 16px;
  background: var(--navy);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s ease;
}

.service_form button[type="submit"]:hover {
  background: var(--red);
}

@media (max-width: 600px) {
  body { padding: 15px; }
  .service_form { padding: 20px; }
  .service_form input,
  .service_form select { padding: 12px 14px; }
  .service_form button[type="submit"] { padding: 14px; font-size: 15px; }
}