/* ===== ОБЩИЕ СТИЛИ ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f9f9f9;
  transition: background-color 0.3s, color 0.3s;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 5%;
}

/* ===== ТЁМНАЯ ТЕМА ===== */
body.dark-theme {
  background-color: #121212;
  color: #e0e0e0;
}

body.dark-theme header {
  background: linear-gradient(135deg, #4a69bd, #6a89cc);
}

body.dark-theme h1,
body.dark-theme h2,
body.dark-theme h3 {
  color: #bb86fc;
}

body.dark-theme .feature-card,
body.dark-theme .work-card {
  background: #1e1e1e;
  color: #ccc;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

body.dark-theme footer {
  border-top: 1px solid #333;
  color: #888;
}

body.dark-theme .info-block { background: #2a2a4a; border-left-color: #6e8efb; }
body.dark-theme .short-block { background: #2a3a5a; border-left-color: #4a69bd; }
body.dark-theme .tech-block { background: #2a4a3a; border-left-color: #22c55e; }
body.dark-theme .tools-block { background: #4a3a2a; border-left-color: #f59e0b; }
body.dark-theme .conclusion-block { background: #3a2a4a; border-left-color: #a855f7; }
body.dark-theme .myth-block { background: #4a2a2a; border-left-color: #ef4444; }
body.dark-theme .highlight { background: rgba(0, 217, 255, 0.15); border-left-color: #00d9ff; }
body.dark-theme th { background: #2a2a2a; }
body.dark-theme td,
body.dark-theme th { border-color: #444; }
body.dark-theme .lang-btn { background: #1e1e1e; color: #bb86fc; border-color: #bb86fc; }
body.dark-theme .lang-btn:hover { background: #2a2a2a; }
body.dark-theme .lang-btn.active { background: linear-gradient(135deg, #4a69bd, #6a89cc); color: white; border-color: transparent; }
body.dark-theme .stats-box { background: linear-gradient(135deg, #3a1c71, #2c2c54); box-shadow: 0 4px 12px rgba(187, 134, 252, 0.2); }
body.dark-theme .toc { background: #2a2a4a; }
body.dark-theme .toc a { color: #6e8efb; }

/* ===== ШАПКА ===== */
header {
  background: linear-gradient(135deg, #6e8efb, #a777e3);
  color: white;
  padding: 2rem 1rem;
  text-align: center;
  border-radius: 0 0 12px 12px;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  color: white !important;
}

header p {
  font-size: 1.1rem;
  opacity: 0.95;
}

/* ===== ЗАГОЛОВКИ ===== */
h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { color: #555; margin: 2rem 0 1rem; }
h3 { color: #666; margin: 1.5rem 0 0.8rem; }
p { margin-bottom: 1rem; }

body.dark-theme h2 { color: #bb86fc; }
body.dark-theme h3 { color: #ccc; }

/* ===== КНОПКИ ===== */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: linear-gradient(135deg, #6e8efb, #a777e3);
  color: white !important;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(110, 142, 251, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
  margin-bottom: 1.5rem;
}

.back-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(110, 142, 251, 0.5);
}

.back-btn::before {
  content: "←";
  font-size: 1.2rem;
}

/* ===== КАРТОЧКИ ===== */
.features {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.feature-card,
.work-card {
  background: white;
  padding: 1.2rem;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
  flex: 1 1 250px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover,
.work-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* ===== КАРТИНКИ РАБОТ (ИСПРАВЛЕНО) ===== */
.work-card img {
  width: 100%;
  height: auto;           /* ← Авто-высота, не обрезает! */
  max-height: 500px;      /* ← Максимум, но не обязательно */
  object-fit: contain;    /* ← Показывает всю картинку целиком */
  object-position: center;
  display: block;
  border-radius: 8px 8px 0 0;
  background: #f5f5f5;    /* ← Фон, если картинка меньше */
}

/* Адаптив для телефонов */
@media (max-width: 768px) {
  .work-card img {
    max-height: 300px;    /* ← На телефоне поменьше */
  }
}

.work-card p {
  font-size: 0.95rem;
  color: #666;
  margin: 0;
  font-style: italic;
}

body.dark-theme .work-card p { color: #aaa; }

/* ===== ГАЛЕРЕЯ ===== */
.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

/* ===== ТАБЛИЦЫ ===== */
.table-wrapper {
  overflow-x: auto;
  margin: 20px 0;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.table-wrapper table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
  margin: 0;
}

.table-wrapper th,
.table-wrapper td {
  border: 1px solid #ccc;
  padding: 10px;
  text-align: left;
}

.table-wrapper th {
  background: #f3f4f6;
  font-weight: 600;
}

body.dark-theme .table-wrapper th { background: #2a2a2a; }

/* ===== ИНФО-БЛОКИ ===== */
.info-block, .short-block, .tech-block,
.tools-block, .conclusion-block, .myth-block, .highlight {
  padding: 15px 20px;
  border-radius: 0 8px 8px 0;
  margin: 25px 0;
  transition: transform 0.2s;
}

.info-block:hover, .short-block:hover, .tech-block:hover {
  transform: translateY(-2px);
}

.info-block { background: #eef6ff; border-left: 5px solid #3b82f6; }
.short-block { background: #e8f0fe; border-left: 5px solid #1a73e8; }
.tech-block { background: #e7f7ed; border-left: 5px solid #22c55e; }
.tools-block { background: #fff4e5; border-left: 5px solid #f59e0b; }
.conclusion-block { background: #f5e8ff; border-left: 5px solid #a855f7; }
.myth-block { background: #ffe5e5; border-left: 5px solid #ef4444; }
.highlight { background: rgba(0, 217, 255, 0.1); border-left: 4px solid #00d9ff; }

/* ===== СТАТИСТИКА ===== */
.stats-box {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1.2rem;
  border-radius: 10px;
  margin: 1.5rem 0;
  font-weight: 500;
  line-height: 1.5;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* ===== ЯЗЫКОВЫЕ КНОПКИ ===== */
.lang-switcher {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0;
  flex-wrap: wrap;
}

.lang-btn {
  padding: 0.5rem 1.2rem;
  border: 2px solid #6e8efb;
  background: white;
  color: #6e8efb;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.lang-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(110, 142, 251, 0.3);
}

.lang-btn.active,
.lang-btn.active:hover {
  background: linear-gradient(135deg, #6e8efb, #a777e3);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(110, 142, 251, 0.4);
}

.lang-content {
  animation: slideIn 0.4s ease-out;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== КНОПКА НАВЕРХ ===== */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #6e8efb;
  color: white;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.2rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 100;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

/* ===== ПЕРЕКЛЮЧАТЕЛЬ ТЕМЫ ===== */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 100;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: background 0.3s;
}

.theme-toggle:hover {
  background: rgba(255,255,255,0.25);
}

/* ===== ПОДВАЛ ===== */
footer {
  text-align: center;
  padding: 1.5rem;
  color: #777;
  font-size: 0.9rem;
  border-top: 1px solid #eee;
  margin-top: 2rem;
}

footer a {
  color: #6e8efb;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* ===== ФУТЕР ЭКСТРА ===== */
.footer-extra {
  text-align: center;
  margin: 2rem 0;
  font-size: 0.9rem;
  color: #666;
}

.footer-extra a {
  display: inline-block;
  margin: 0.5rem;
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  transition: transform 0.2s;
}

.footer-extra a:hover {
  transform: translateY(-2px);
}

.footer-extra .telegram { background: #0088cc; color: white; }
.footer-extra .author { background: #25D366; color: white; }

/* ===== ОГЛАВЛЕНИЕ ===== */
.toc {
  background: #f0f4ff;
  padding: 1rem;
  border-radius: 8px;
  margin: 1.5rem 0;
}

.toc ul {
  margin: 0.5rem 0 0 1.5rem;
  padding: 0;
  list-style: none;
}

.toc a {
  color: #1a73e8;
  text-decoration: none;
}

.toc a:hover {
  text-decoration: underline;
}

/* ===== АДАПТИВ ===== */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.4rem; }
  .container { padding: 1rem; }
  .feature-card, .work-card { flex: 1 1 100%; }
  .lang-btn { flex: 1; min-width: 120px; font-size: 0.9rem; padding: 0.4rem 0.8rem; }
  header h1 { font-size: 2rem; }
  ol, ul { padding-left: 1.2rem; }
  li { margin-bottom: 0.8rem; }
  .work-card img { height: 250px; }
}

@media (max-width: 600px) {
  .works-grid {
    grid-template-columns: 1fr;
  }
}