/* ============================================================
   PetCareDiary - Единый стиль для HTML документов
   Светлая тема в стиле мобильного приложения
   ============================================================ */

:root {
  /* Цвета приложения */
  --primary: #66BB6A;        /* Soft Green - основной */
  --primary-light: #81C784;  /* Light Green */
  --primary-dark: #4CAF50;
  --background: #F1F8F4;     /* Very light green */
  --surface: #FFFFFF;
  --text-primary: #2D3748;   /* Dark gray */
  --text-secondary: #718096;
  --border: #E2E8F0;
  --shadow: rgba(0, 0, 0, 0.08);
  
  /* Акценты */
  --accent-blue: #42A5F5;
  --accent-purple: #AB47BC;
  --accent-orange: #FFA726;
  --accent-red: #EF5350;
  
  /* Семантические цвета */
  --success: #66BB6A;
  --warning: #FFA726;
  --error: #EF5350;
  --info: #42A5F5;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
}

/* ============ Контейнер ============ */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

/* ============ Карточка ============ */
.card {
  background: var(--surface);
  border-radius: 20px;
  padding: 32px;
  box-shadow: 
    0 4px 12px var(--shadow),
    0 1px 3px rgba(0, 0, 0, 0.05);
  margin-bottom: 24px;
}

@media (max-width: 600px) {
  .card {
    padding: 24px 16px;
    border-radius: 16px;
  }
}

/* ============ Типография ============ */
h1 {
  font-size: clamp(28px, 5vw, 36px);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
  letter-spacing: -0.5px;
}

h2 {
  font-size: clamp(20px, 3vw, 24px);
  font-weight: 600;
  color: var(--primary);
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 20px 0 8px;
}

p {
  margin: 12px 0;
  line-height: 1.7;
  color: var(--text-secondary);
}

ul, ol {
  margin: 12px 0;
  padding-left: 24px;
  line-height: 1.8;
}

li {
  margin: 8px 0;
  color: var(--text-secondary);
}

li b, li strong {
  color: var(--text-primary);
}

code, b, strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ============ Бейджи ============ */
.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 12px;
  background: rgba(102, 187, 106, 0.1);
  border: 1px solid rgba(102, 187, 106, 0.3);
  color: var(--primary);
  font-weight: 600;
  font-size: 13px;
  margin-right: 8px;
  margin-bottom: 8px;
}

.meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0 0 24px;
}

/* ============ Переключатель языка ============ */
.langbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0 32px;
  padding: 4px;
  background: var(--background);
  border-radius: 12px;
  display: inline-flex;
}

.langbar button {
  cursor: pointer;
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  background: transparent;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.langbar button:hover {
  background: rgba(102, 187, 106, 0.1);
  color: var(--primary);
}

.langbar button.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(102, 187, 106, 0.3);
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

/* ============ Ссылки ============ */
a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

a:hover {
  border-bottom-color: var(--primary);
}

/* ============ Специальные блоки ============ */
.note, .info {
  padding: 16px;
  border-radius: 12px;
  background: rgba(102, 187, 106, 0.05);
  border: 1px solid rgba(102, 187, 106, 0.2);
  color: var(--text-primary);
  margin: 16px 0;
}

.warning {
  padding: 16px;
  border-radius: 12px;
  background: rgba(255, 167, 38, 0.08);
  border: 1px solid rgba(255, 167, 38, 0.3);
  color: var(--text-primary);
  margin: 16px 0;
}

.warning b {
  color: var(--warning);
}

.error, .danger {
  padding: 16px;
  border-radius: 12px;
  background: rgba(239, 83, 80, 0.08);
  border: 1px solid rgba(239, 83, 80, 0.3);
  color: var(--text-primary);
  margin: 16px 0;
}

.error b, .danger b {
  color: var(--error);
}

/* ============ FAQ блоки ============ */
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin: 16px 0;
  box-shadow: 0 2px 8px var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.faq-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--shadow);
}

.faq-item h3 {
  color: var(--primary);
  margin-top: 0;
  margin-bottom: 12px;
}

/* ============ Сетка ============ */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 16px 0;
}

@media (min-width: 768px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============ Иконки в заголовках ============ */
.icon-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0 16px;
}

.icon-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 24px;
  background: var(--primary);
  border-radius: 4px;
}

/* ============ Утилиты ============ */
.muted {
  color: var(--text-secondary);
  font-size: 14px;
}

.text-center {
  text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

/* ============ Адаптивность ============ */
@media (max-width: 600px) {
  .container {
    padding: 16px 12px 48px;
  }
  
  h1 {
    font-size: 24px;
  }
  
  h2 {
    font-size: 20px;
  }
}

/* ============ Печать ============ */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
  }
  
  .langbar {
    display: none;
  }
  
  .panel {
    display: block !important;
  }
}