/* Форма регистрации: на всю ширину колонки, прямые углы, акцент #cb1b22 */

#registration-form {
  scroll-margin-top: 1.5rem;
}

section.post-content .main-content-col .post-content .reg-form-section {
  margin: 1.75rem 0 1.5rem;
  display: block;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

section.post-content .main-content-col .post-content .reg-form {
  --reg-accent: #cb1b22;
  --reg-accent-dark: #9d0006;
  --reg-border: #c8c8c8;
  --reg-bg-notice: #f0f0f0;
  --reg-text: #222;
  --reg-placeholder: #939597;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0;
  font-family: 'PT Sans', Arial, Helvetica, sans-serif;
  font-size: 20px;
  line-height: 1.55;
  font-weight: 500;
  color: var(--reg-text);
  background: #fff;
  border: 1px solid #d8d8d8;
  border-radius: 4px;
  box-shadow: 0 3px 14px rgba(0, 0, 0, 0.07);
  overflow: hidden;
  box-sizing: border-box;
}

section.post-content .main-content-col .post-content .reg-form__header {
  margin: 0;
  padding: 15px;
  background: var(--reg-accent);
  color: #fff;
  font-size: clamp(1.8rem, 3.6vw, 2.35rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.07em;
  text-align: center;
  text-transform: uppercase;
}

section.post-content .main-content-col .post-content .reg-form__notice {
  margin: 0;
  padding: 15px;
  border-left: 5px solid var(--reg-accent);
  background: var(--reg-bg-notice);
  color: #333;
  font-size: inherit;
  font-weight: 500;
  line-height: 1.55;
}

section.post-content .main-content-col .post-content .reg-form__notice p {
  margin: 0;
}

section.post-content .main-content-col .post-content .reg-form__body {
  padding: 15px;
  box-sizing: border-box;
}

section.post-content .main-content-col .post-content .reg-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-bottom: 15px;
}

@media (max-width: 520px) {
  section.post-content .main-content-col .post-content .reg-form__row {
    grid-template-columns: 1fr;
  }
}

section.post-content .main-content-col .post-content .reg-form__field {
  position: relative;
  margin: 0 0 15px;
}

section.post-content .main-content-col .post-content .reg-form__row .reg-form__field {
  margin-bottom: 0;
}

section.post-content .main-content-col .post-content .reg-form__label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

section.post-content .main-content-col .post-content .reg-form__input::placeholder {
  color: var(--reg-placeholder);
  opacity: 1;
}

section.post-content .main-content-col .post-content .reg-form__input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  min-height: 48px;
  padding: 15px;
  border: 1px solid var(--reg-border);
  border-radius: 4px;
  background: #fff;
  color: var(--reg-text);
  font: inherit;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.35;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

section.post-content .main-content-col .post-content .reg-form__input:hover {
  border-color: #a8a8a8;
}

section.post-content .main-content-col .post-content .reg-form__input:focus {
  outline: none;
  border-color: var(--reg-accent);
  box-shadow:
    0 0 0 1px var(--reg-accent),
    0 0 0 3px #fff,
    0 0 0 4px var(--reg-accent);
}

section.post-content .main-content-col .post-content .reg-form__submit {
  display: block;
  width: 100%;
  margin-top: 8px;
  min-height: 3.9rem;
  padding: 18px 20px;
  box-sizing: border-box;
  border: 1px solid var(--reg-accent-dark);
  border-radius: 4px;
  background: var(--reg-accent);
  color: #fff;
  font: inherit;
  font-weight: 800;
  font-size: 1.8rem;
  line-height: 1.2;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background 0.2s ease;
}

section.post-content .main-content-col .post-content .reg-form__submit:hover,
section.post-content .main-content-col .post-content .reg-form__submit:focus {
  background: #b8181e;
  outline: none;
}

section.post-content .main-content-col .post-content .reg-form__submit:focus {
  box-shadow: 0 0 0 3px rgba(203, 27, 34, 0.35);
}

@media (max-width: 767px) {
  section.post-content .main-content-col .post-content .reg-form {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    font-size: 19px;
  }

  section.post-content .main-content-col .post-content .reg-form__header {
    font-size: clamp(1.5rem, 6vw, 1.95rem);
    padding: 12px;
  }

  section.post-content .main-content-col .post-content .reg-form__notice {
    padding: 12px;
  }

  section.post-content .main-content-col .post-content .reg-form__body {
    padding: 12px;
  }

  section.post-content .main-content-col .post-content .reg-form__row {
    gap: 12px;
    margin-bottom: 12px;
  }

  section.post-content .main-content-col .post-content .reg-form__field {
    margin-bottom: 12px;
  }

  section.post-content .main-content-col .post-content .reg-form__input {
    font-size: 19px;
    padding: 12px;
    min-height: 44px;
  }

  section.post-content .main-content-col .post-content .reg-form__submit {
    font-size: 1.8rem;
    min-height: 3.65rem;
  }
}