/* -------------------------------------------------------------------------- */
/* 1. БАЗОВЫЕ ПЕРЕМЕННЫЕ И ДИЗАЙН-СИСТЕМА                                     */
/* -------------------------------------------------------------------------- */

/* Тёмная тема (по умолчанию) */
:root,
[data-theme="dark"] {
  --bg-color: #242629;
  --text-color: #e0e0e0;
  --text-muted: #888888;
  --text-hover: #ffffff;
  --accent-color: #29ECFF;
  --footer-bg: #16161A;
  
  --header-bg: rgba(22, 22, 26, 0.9);
  --border-color: #393939;
  --border-color-hover: #555555;

  --badge-bg: #16161a;
  --badge-border: #2a2a2a;
  --badge-radius: 8px;

  --btn-bg: #303030;
  --btn-bg-hover: #404040;
  --btn-border: #4B4B4B;
  --btn-border-hover: #505050;
  --btn-radius: 10px;

  --nav-link: #a0a0a0;
  --nav-link-hover: #ffffff;
}

/* Светлая тема */
[data-theme="light"] {
  --bg-color: #fffffe;
  --text-color: #212529;
  --text-muted: #6c757d;
  --text-hover: #000000;
  --accent-color: #00B1C2;
  --footer-bg: #F4F4F6;
  
  --header-bg: rgba(244, 244, 246, 0.9); 
  --border-color: #e0e0e0;
  --border-color-hover: #b0b0b0;

  --badge-bg: #eff0f3;
  --badge-border: #e0e0e0;

  --btn-bg: #f0f0f0;
  --btn-bg-hover: #e4e4e4;
  --btn-border: #dcdcdc;
  --btn-border-hover: #b5b5b5;

  --nav-link: #555555;
  --nav-link-hover: #000000;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* -------------------------------------------------------------------------- */
/* 2. СКВОЗНАЯ ШАПКА И ПОДВАЛ                                                 */
/* -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Блок справа: собирает меню, переключатель темы и гамбургер в одну линию */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Бренд-блок (Логотип + Имя) */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-img {
  width: 36px;
  height: 36px;
  max-width: 36px;
  max-height: 36px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.2;
}

.logo-name {
  color: var(--text-color);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.logo-title {
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 400;
  margin-top: 1px;
}

/* Навигация в шапке */
.main-nav a {
  color: var(--nav-link);
  text-decoration: none;
  margin-left: 2rem;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding-bottom: 4px;
  transition: color 0.2s ease;
}

.main-nav a:hover {
  color: var(--nav-link-hover);
}

.main-nav a.active {
  color: var(--text-hover);
  font-weight: 600;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-color);
  border-radius: 2px;
}

.site-main {
  flex: 1;
  max-width: 1920px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 2rem;
}

.site-footer {
  background-color: var(--footer-bg);
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* -------------------------------------------------------------------------- */
/* 3. ФИЛЬТР КАТЕГОРИЙ НА ГЛАВНОЙ                                             */
/* -------------------------------------------------------------------------- */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-bottom: 1rem;
  padding: 0 1rem;
}

.filter-btn {
  background-color: var(--btn-bg);
  color: var(--nav-link);
  border: 1px solid var(--btn-border);
  padding: 0.5rem 1.2rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.filter-btn:hover {
  color: var(--text-hover);
  border-color: var(--btn-border-hover);
  background-color: var(--btn-bg-hover);
}

.filter-btn.active {
  background-color: var(--text-color);
  color: var(--bg-color);
  border-color: var(--text-color);
  font-weight: 600;
}

/* -------------------------------------------------------------------------- */
/* 4. СЕТКА И КАРТОЧКИ ПРОЕКТОВ                                               */
/* -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1rem;
  padding: 0.5rem 0;
}

.project-card {
  position: relative;
  display: block;
  border-radius: var(--btn-radius);
  overflow: hidden;
  background-color: var(--btn-bg);
  border: 2px solid var(--btn-border);
  text-decoration: none;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.card-image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--badge-bg);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card-image-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--btn-bg) 0%, var(--bg-color) 100%);
}

.project-card:hover .card-image {
  transform: scale(1.05);
}

.project-card:hover {
  border-color: var(--accent-color);
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover .card-overlay {
  opacity: 1;
}

.card-title {
  color: #ffffff; /* Текст внутри оверлея карточки остаётся белым для читаемости поверх фото */
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}

/* -------------------------------------------------------------------------- */
/* 5. ИНФОРМАЦИОННЫЕ ПЛАШКИ (Статичные, без ховера)                           */
/* -------------------------------------------------------------------------- */

/* Метаданные проекта (Tools, Polycount) */
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--badge-bg);
  border: 2px solid var(--badge-border);
  padding: 0.65rem 1rem;
  border-radius: var(--badge-radius);
  font-size: 0.9rem;
  line-height: 1.2;
}

.meta-label {
  color: var(--text-muted);
  font-weight: 500;
}

.meta-value {
  color: var(--text-color);
}

/* Навыки на странице About */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 2.5rem;
}

.skill-tag {
  background-color: var(--badge-bg);
  border: 2px solid var(--badge-border);
  color: var(--text-color);
  padding: 0.65rem 1rem;
  border-radius: var(--badge-radius);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.2;
}

/* Софт на странице About */
.software-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 1.2rem;
  margin: 1.5rem 0 2.5rem;
}

.software-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--badge-bg);
  border: 2px solid var(--badge-border);
  border-radius: var(--badge-radius);
  padding: 1.2rem 0.8rem;
  color: var(--text-color);
}

.software-item i {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.software-item span {
  font-size: 0.85rem;
  font-weight: 500;
}

/* В светлой теме инвертируем только белую иконку в чёрную */
[data-theme="light"] img.theme-invert {
  filter: invert(1);
}

/* -------------------------------------------------------------------------- */
/* 6. ИНТЕРАКТИВНЫЕ КНОПКИ (С ховер-эффектами)                                */
/* -------------------------------------------------------------------------- */

/* Кнопка Share */
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--btn-bg);
  border: 1px solid var(--btn-border);
  color: var(--text-color);
  padding: 0.65rem 1rem;
  border-radius: var(--btn-radius);
  font-size: 0.9rem;
  line-height: 1.2;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-left: auto;
  box-sizing: border-box;
}

.share-btn:hover {
  background-color: var(--btn-bg-hover);
  border-color: var(--btn-border-hover);
  color: var(--text-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.share-btn.copied {
  background-color: rgba(44, 182, 125, 0.15);
  border-color: #2CB67D;
  color: #2CB67D;
}

/* Кнопки навигации между проектами */
.project-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  gap: 1rem;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background-color: var(--btn-bg);
  border: 1px solid var(--btn-border);
  color: var(--text-color);
  text-decoration: none;
  padding: 0.8rem 1.4rem;
  border-radius: var(--btn-radius);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.25s cubic-bezier(0.25, 1, 0.5, 1);
}

.nav-btn:hover {
  background-color: var(--btn-bg-hover);
  border-color: var(--btn-border-hover);
  color: var(--text-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.prev-btn:hover .nav-arrow { transform: translateX(-4px); }
.next-btn:hover .nav-arrow { transform: translateX(4px); }

.nav-arrow {
  color: var(--accent-color);
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

/* Кнопки социальных сетей в Contacts */
.contacts-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  background-color: var(--btn-bg);
  border: 1px solid var(--btn-border);
  padding: 1rem 1.5rem;
  border-radius: var(--btn-radius);
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  max-width: 450px;
  transition: all 0.2s ease;
}

.contact-link:hover {
  background-color: var(--btn-bg-hover);
  color: var(--text-hover);
  transform: translateX(4px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

/* -------------------------------------------------------------------------- */
/* 7. СТРАНИЦА ПРОЕКТА И СТРАНИЦЫ (Контент)                                    */
/* -------------------------------------------------------------------------- */
.project-single {
  max-width: 2000px;
  margin: 0 auto;
  padding-top: 1rem;
}

.project-header {
  max-width: 1000px;
  margin: 0 auto 2.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.project-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.project-content {
  line-height: 1.8;
  font-size: 1.05rem;
  color: var(--text-color);
}

.project-content p,
.project-content h1,
.project-content h2,
.project-content h3,
.project-content ul,
.project-content ol {
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 1.5rem;
}

.project-content p:has(img),
.project-content p:has(a.glightbox),
.project-content p:has(iframe),
.project-content p:has(.sketchfab-embed-wrapper) {
  max-width: 100% !important;
  width: 100%;
}

.project-content img,
.project-content a.glightbox {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--btn-radius);
  margin: 0rem auto;
  border: 1px solid var(--border-color);
}

.sketchfab-embed-wrapper,
.responsive-embed,
.project-content iframe {
  position: relative !important;
  width: 100% !important;
  max-width: 100% !important;
  aspect-ratio: 16 / 9;
  margin-top: 1.5rem !important;
  margin-bottom: 2rem !important; /* Четко фиксируем нижний отступ */
  margin-left: auto !important;
  margin-right: auto !important;
  padding: 0 !important;
  border-radius: var(--btn-radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background-color: var(--badge-bg);
}

.project-content iframe,
.sketchfab-embed-wrapper iframe,
.responsive-embed iframe {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  border: none !important;
  margin: 0 !important;
  padding: 0 !important;
  vertical-align: top !important;
}

/* Жестко задаем отступ снизу для инлайн-контейнера Hugo YouTube */
.project-content div:has(iframe) {
  margin-bottom: 2rem !important;
}

.project-content p {
  margin-bottom: 1.5rem; 
}

.single-page {
  max-width: 900px;
  margin: 0 auto;
  padding-top: 1rem;
}

.page-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.page-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-color);
}

.page-content {
  line-height: 1.8;
  color: var(--text-color);
  font-size: 1.05rem;
}

.page-content p {
  margin-bottom: 1.5rem; 
}

.page-content h1,
.page-content h2,
.page-content h3,
.page-content h4,
.page-content h5,
.page-content h6 {
  color: var(--text-color);
  margin-top: 2.5rem !important;
  margin-bottom: 1.2rem !important;
}

.category-link {
  color: var(--text-color);
  text-decoration: none;
  border-bottom: 1px dotted var(--text-muted);
  transition: border-color 0.2s ease;
}

.category-link:hover {
  border-bottom-color: var(--text-color);
}

/* -------------------------------------------------------------------------- */
/* 8. АВАТАРКА И О БРАУЗЕРЕ/АДАПТИВ                                           */
/* -------------------------------------------------------------------------- */
.about-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1.5rem;
}

.about-avatar {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  flex-shrink: 0;
  background-color: var(--badge-bg);
}

@media (max-width: 768px) {
  .sketchfab-embed-wrapper,
  .responsive-embed,
  .project-content iframe {
    margin: 0 auto !important;
    border-radius: 6px;
  }
}

@media (max-width: 600px) {
  .about-hero {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.2rem;
  }

  .about-avatar {
    width: 90px;
    height: 90px;
  }
}

/* -------------------------------------------------------------------------- */
/* 9. МОБИЛЬНОЕ СЭНДВИЧ-МЕНЮ И КНОПКА ТЕМЫ                                   */
/* -------------------------------------------------------------------------- */

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.mobile-menu-toggle .bar {
  width: 100%;
  height: 2px;
  background-color: var(--text-color);
  border-radius: 2px;
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .main-nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 0;
    gap: 1.2rem;
    
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .main-nav.is-open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
  }

  .main-nav a,
  .theme-toggle-btn {
    margin-left: 0 !important;
    font-size: 1.1rem;
  }
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: 2rem;
  padding: 0.35rem 0.75rem;
  background-color: var(--btn-bg);
  border: 1px solid var(--btn-border);
  border-radius: var(--btn-radius);
  color: var(--text-color);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.theme-toggle-btn:hover {
  background-color: var(--btn-bg-hover);
  border-color: var(--btn-border-hover);
  color: var(--text-hover);
}

.theme-toggle-btn i {
  font-size: 0.85rem;
  color: var(--accent-color);
}


.cgtrader-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background-color: var(--btn-bg);
  border: 1px solid var(--btn-border);
  padding: 1.2rem 1.5rem;
  border-radius: var(--btn-radius);
  text-decoration: none;
  color: var(--text-color);
  
  max-width: 1000px;
  margin: 2rem auto;
  width: 100%;
  
  transition: all 0.2s ease;
}

.cgtrader-card:hover {
  border-color: #00a2bf;
  background-color: var(--btn-bg-hover);
  transform: translateY(-2px);
}

.cgtrader-card-icon {
  font-size: 1.8rem;
  color: #00a2bf;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cgtrader-card-info {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.cgtrader-card-title {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-color);
}

.cgtrader-card-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Яркий бейдж "FOR SALE" */
.cgtrader-card-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: #00a2bf;
  background-color: rgba(0, 162, 191, 0.15);
  border: 1px solid rgba(0, 162, 191, 0.3);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.cgtrader-card-btn {
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  background-color: #00a2bf;
  padding: 0.5rem 1rem;
  border-radius: var(--btn-radius);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.cgtrader-card:hover .cgtrader-card-btn {
  background-color: #0088a1;
}

/* -------------------------------------------------------------------------- */
/* 10. 404 PAGE STYLES                                                        */
/* -------------------------------------------------------------------------- */

.error-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 65vh;
  text-align: center;
  padding: 2rem 1rem;
}

.error-container {
  max-width: 500px;
  width: 100%;
}

.error-code {
  font-size: 6rem;
  font-weight: 800;
  line-height: 1;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
  letter-spacing: -2px;
}

.error-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.error-description {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background-color: var(--btn-bg);
  color: var(--nav-link);
  padding: 0.75rem 1.5rem;
  border-radius: var(--btn-radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-4px);
  color: var(--nav-link-hover);
  background-color: var(--btn-bg-hover);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.btn-primary i {
  color: var(--accent-color); 
  transition: transform 0.2s ease;
  display: inline-block; 
}

.btn-primary:hover i {
  transform: translateX(-4px);
}