/* frontend/css/planner.css */
/* ===== ОСНОВНЫЕ СТИЛИ ДЛЯ ФОРМЫ ===== */
.main-content {
  padding: 160px 0 80px;
  background: linear-gradient(135deg, #e8f4f8 0%, #d4eaf0 100%);
  min-height: 100vh;
}

.form-container {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
  max-width: 900px;
  margin: 0 auto;
}

.form-title {
  font-size: 36px;
  color: #2c3e50;
  margin-bottom: 10px;
  text-align: center;
}

.form-subtitle {
  color: #7f8c8d;
  text-align: center;
  margin-bottom: 40px;
  font-size: 18px;
}

/* ===== СЕКЦИИ ФОРМЫ ===== */
.form-section {
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 2px solid #ecf0f1;
}

.form-section:last-of-type {
  border-bottom: none;
}

.section-title {
  font-size: 24px;
  color: #3498db;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 30px;
  background-color: #3498db;
  border-radius: 4px;
}

.section-subtitle {
  color: #7f8c8d;
  margin-bottom: 20px;
  font-size: 16px;
}

/* ===== СТРОКИ И ГРУППЫ ФОРМЫ ===== */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #2c3e50;
  font-size: 16px;
}

/* ===== СТИЛИ ДЛЯ ПОЛЕЙ ВВОДА ===== */
select,
input[type="date"],
input[type="number"],
textarea {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #ddd;
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.3s;
  background-color: #f8f9fa;
}

select:focus,
input:focus,
textarea:focus {
  outline: none;
  border-color: #3498db;
  background-color: white;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

textarea {
  resize: vertical;
  min-height: 100px;
  font-family: inherit;
}

/* ===== ЧЕКБОКСЫ И РАДИО-КНОПКИ ===== */
.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
}

.checkbox-label,
.radio-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 12px 15px;
  background-color: #f8f9fa;
  border-radius: 8px;
  transition: all 0.3s;
  border: 2px solid transparent;
}

.checkbox-label:hover,
.radio-label:hover {
  background-color: #e8f4fc;
  border-color: #3498db;
}

.checkbox-label input,
.radio-label input {
  display: none;
}

.checkbox-custom,
.radio-custom {
  width: 20px;
  height: 20px;
  border: 2px solid #bdc3c7;
  margin-right: 10px;
  position: relative;
  transition: all 0.3s;
}

.checkbox-custom {
  border-radius: 4px;
}

.radio-custom {
  border-radius: 50%;
}

.checkbox-label input:checked + .checkbox-custom {
  background-color: #3498db;
  border-color: #3498db;
}

.checkbox-label input:checked + .checkbox-custom::after {
  content: "✓";
  position: absolute;
  color: white;
  font-size: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.radio-label input:checked + .radio-custom {
  border-color: #3498db;
}

.radio-label input:checked + .radio-custom::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  background-color: #3498db;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.checkbox-text {
  font-size: 16px;
  color: #2c3e50;
}

.radio-group {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

/* ===== КНОПКИ ФОРМЫ ===== */
.form-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
  margin-bottom: 20px;
}

.btn-secondary {
  background-color: #95a5a6;
  color: white;
}

.btn-secondary:hover {
  background-color: #7f8c8d;
}

.form-note {
  text-align: center;
  color: #7f8c8d;
  font-size: 14px;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #3498db;
}

/* ===== ВАЛИДАЦИЯ И ОШИБКИ ===== */
.error-message {
  color: #e74c3c;
  font-size: 14px;
  margin-top: 5px;
  display: none;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: #e74c3c;
}

.form-group.error .error-message {
  display: block;
}

/* ============================================ */
/* ===== УНИВЕРСАЛЬНАЯ АДАПТАЦИЯ ДЛЯ ВСЕХ УСТРОЙСТВ ===== */
/* ============================================ */

/* Планшеты (до 992px) */
@media (max-width: 992px) {
  .form-container {
    padding: 35px;
    margin: 0 20px;
  }

  .form-title {
    font-size: 32px;
  }

  .form-subtitle {
    font-size: 16px;
  }

  .interests-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Планшеты-мини (до 768px) */
@media (max-width: 768px) {
  .main-content {
    padding: 140px 15px 60px;
    margin-top: 50px;
  }

  .form-container {
    padding: 30px 25px;
    margin: 0 15px;
  }

  .form-title {
    font-size: 28px;
  }

  .form-subtitle {
    font-size: 15px;
    margin-bottom: 30px;
  }

  .section-title {
    font-size: 22px;
  }

  .section-title::before {
    height: 26px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .interests-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .checkbox-label,
  .radio-label {
    padding: 10px 12px;
  }

  .checkbox-text {
    font-size: 15px;
  }

  .form-actions {
    flex-direction: column;
    gap: 15px;
    margin-top: 35px;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .form-note {
    font-size: 13px;
    padding: 12px;
  }
}

/* Маленькие телефоны (до 576px) — ОДНА КОЛОНКА */
@media (max-width: 576px) {
  .main-content {
    padding: 120px 12px 50px;
    margin-top: 50px;
  }

  .form-container {
    padding: 25px 20px;
    margin: 0 10px;
  }

  .form-title {
    font-size: 24px;
  }

  .form-subtitle {
    font-size: 14px;
    margin-bottom: 25px;
  }

  .section-title {
    font-size: 20px;
  }

  .section-title::before {
    height: 24px;
  }

  .section-subtitle {
    font-size: 13px;
    margin-bottom: 15px;
  }

  .form-group {
    margin-bottom: 20px;
  }

  .form-group label {
    font-size: 14px;
  }

  select,
  input[type="date"],
  input[type="number"],
  textarea {
    padding: 10px 12px;
    font-size: 14px;
  }

  .interests-grid {
    gap: 10px;
  }

  .checkbox-label,
  .radio-label {
    padding: 10px 12px;
  }

  .checkbox-text {
    font-size: 14px;
  }

  .checkbox-custom,
  .radio-custom {
    width: 18px;
    height: 18px;
  }

  .form-actions {
    gap: 12px;
    margin-top: 30px;
  }

  .btn {
    padding: 12px 20px;
    font-size: 14px;
  }

  .form-note {
    font-size: 12px;
    padding: 10px;
  }

  .footer {
    font-size: 12px;
  }
}

/* Очень маленькие телефоны (до 400px) */
@media (max-width: 400px) {
  .main-content {
    padding: 150px 10px 40px;
  }

  .form-container {
    padding: 20px 15px;
    margin: 0 8px;
  }

  .form-title {
    font-size: 22px;
  }

  .form-subtitle {
    font-size: 13px;
  }

  .section-title {
    font-size: 18px;
  }

  .section-title::before {
    height: 22px;
  }

  .form-group label {
    font-size: 13px;
  }

  select,
  input[type="date"],
  input[type="number"],
  textarea {
    padding: 8px 10px;
    font-size: 13px;
  }

  .checkbox-text {
    font-size: 13px;
  }

  .btn {
    padding: 10px 16px;
    font-size: 13px;
  }

  .form-note {
    font-size: 11px;
  }
  .footer {
    font-size: 10px;
  }
}

/* Galaxy Z Fold */
@media (max-width: 344px) {
  .main-content {
    padding: 110px 10px 40px;
    margin-top: 50px;
  }

  .form-container {
    padding: 20px 15px;
    margin: 0 8px;
  }

  .form-title {
    font-size: 22px;
  }

  .form-subtitle {
    font-size: 13px;
  }

  .section-title {
    font-size: 17px;
  }

  .section-title::before {
    height: 22px;
  }

  .form-group label {
    font-size: 13px;
  }

  select,
  input[type="date"],
  input[type="number"],
  textarea {
    padding: 8px 10px;
    font-size: 13px;
  }

  .checkbox-text {
    font-size: 13px;
  }

  .btn {
    padding: 10px 16px;
    font-size: 13px;
  }

  .form-note {
    font-size: 11px;
  }
  .footer {
    font-size: 12px;
  }
}