/* 1. БАЗОВЫЕ СБРОСЫ И ШРИФТЫ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f4f6f8;
  color: #333;
  line-height: 1.4;
}

/* 2. ЗАГОЛОВОК СТРАНИЦЫ */
h1 {
  text-align: center;
  margin: 1.5rem 0 1rem;
  font-size: 1.75rem;
  color: #333;
}

/* 3. ОСНОВНОЙ FLEX-КОНТЕЙНЕР */
.content {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  width: 100%;
}

/* 4. ЛЕВАЯ ПАНЕЛЬ: УВЕЛИЧЕННАЯ ФОРМА */
.form_div {
  flex: 1 1 450px;        /* минимум 450px */
  max-width: 600px;       /* увеличен до 600px */
  background-color: #fff;
  border-radius: 0.625rem;
  box-shadow: 0 0 1.25rem rgba(76, 175, 80, 0.3);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: glow 2.5s ease-in-out infinite;
}
@keyframes glow {
  0%   { box-shadow: 0 0 0.625rem #4CAF50; }
  50%  { box-shadow: 0 0 1.25rem #81C784; }
  100% { box-shadow: 0 0 0.625rem #4CAF50; }
}

/* 5. ЭЛЕМЕНТЫ ФОРМЫ */
.choose {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
input[type="file"] { display: none; }
.file-input-label {
  background-color: #2196F3;
  color: #fff;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.85rem;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.2s ease;
}
.file-input-label:hover { background-color: #1976D2; }
#fileName {
  font-size: 0.85rem;
  color: #555;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  max-width: 200px;  /* расширен под новую ширину */
}

/* Select Ad Account */
.form_div p {
  font-size: 0.9rem;
  margin: 0.5rem 0 0.25rem;
  color: #444;
}
.checkbox-container {
  max-height: 16rem;     /* увеличена высота */
  overflow-y: auto;
  border: 1px solid #c3e6cb;
  background-color: #e9f5e8;
  padding: 0.5rem;
  border-radius: 0.375rem;
}
.checkbox-item {
  display: flex;
  align-items: center;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}
.checkbox-item input {
  margin-right: 0.5rem;
  width: 1rem;
  height: 1rem;
  cursor: pointer;
}

/* Кнопки */
.upload-button {
  margin-top: 1rem;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  font-weight: bold;
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: #fff;
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}
.upload-button:hover {
  background: linear-gradient(135deg, #45a049, #2e7d32);
  transform: scale(1.01);
}
.toggle-button {
  margin-top: 0.5rem;
  width: 100%;
  padding: 0.5rem;
  font-size: 0.9rem;
  background-color: #555;
  color: #fff;
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.toggle-button:hover { background-color: #444; }

/* Прогресс-бар */
#progress-container {
  margin-top: 1rem;
  background-color: #ddd;
  border-radius: 0.25rem;
  height: 0.625rem;
  overflow: hidden;
  display: none;
}
#progress-bar {
  height: 100%;
  width: 0;
  background-color: #4CAF50;
  animation: loadingBar 2s linear infinite;
}
@keyframes loadingBar {
  0%   { width: 0; }
  50%  { width: 80%; }
  100% { width: 100%; }
}

/* Статус сообщений */
.status {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  padding: 0.5rem;
  border-radius: 0.25rem;
  color: #fff;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  font-size: 0.9rem;
}
.status.done { background-color: #4CAF50; }
.status.err  { background-color: #f44336; }

/* Правая панель (пример) */
.structure-text {
  flex: 0 0 auto;
  max-width: 100%;
  background-color: #fff;
  border-radius: 0.625rem;
  box-shadow: 0 0 0.625rem rgba(0,0,0,0.1);
  padding: 0.75rem;
  font-family: Consolas, monospace;
  font-size: 0.9rem;
  white-space: pre;
  overflow-x: auto;
  overflow-y: auto;
  max-height: 60vh;
  display: none;
}

/* Нотки */
p.note {
  text-align: center;
  font-size: 0.8rem;
  color: #666;
  margin: 0.5rem 0;
}

/* Адаптив */
@media (max-width: 768px) {
  .content {
    gap: 1rem;
    padding: 0.75rem 1rem;
  }
  .form_div,
  .structure-text {
    flex: 1 1 100%;
    max-width: 100%;
  }
  #fileName { max-width: 240px; }
  .checkbox-container { max-height: 14rem; }
}
@media (max-width: 480px) {
  h1 { font-size: 1.25rem; margin: 1rem 0; }
  .content { padding: 0.5rem; gap: 0.5rem; }
  .form_div { padding: 0.625rem; }
  .file-input-label { font-size: 0.75rem; padding: 0.3rem 0.5rem; }
  #fileName { font-size: 0.75rem; max-width: 180px; }
  .upload-button, .toggle-button { font-size: 0.85rem; padding: 0.4rem; }
  .checkbox-container { max-height: 8rem; }
  .structure-text { max-height: 40vh; font-size: 0.8rem; }
}