/* ===== ULTRA-MINIMAL BASE STYLES ===== */
:root {
  --blue: #2b5896;
  --white: #FFFFFF;
  --text: rgba(43, 88, 150, 0.9);
  --text-light: rgba(43, 88, 150, 0.6);
  --border: rgba(43, 88, 150, 0.15);
}

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

html {
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

/* ===== MINIMAL HEADER ===== */
.minimal-header {
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0;
  background: var(--white);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.header-logo {
  text-decoration: none;
  color: var(--blue);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

.header-logo:hover {
  color: var(--blue);
  opacity: 0.8;
}

.header-nav {
  display: none !important;
  gap: 2rem;
  align-items: center;
  flex: 1;
  margin: 0 2rem;
}

/* Показываем навигацию на больших экранах */
@media (min-width: 992px) {
  .header-nav {
    display: flex !important;
  }
}

.header-nav .nav-link {
  text-decoration: none;
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.header-nav .nav-link:hover {
  color: var(--blue);
}

.header-nav .dropdown {
  display: inline-block;
}

.header-nav .dropdown-toggle {
  cursor: pointer;
}

.header-nav .dropdown-toggle::after {
  margin-left: 0.25rem;
  vertical-align: middle;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.header-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(43, 88, 150, 0.02);
}

.header-btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}

.header-btn-primary:hover {
  background: var(--white);
  color: var(--blue);
}

.header-dropdown {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0;
  box-shadow: 0 4px 12px rgba(43, 88, 150, 0.1);
}

.header-dropdown .dropdown-item {
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
  color: var(--text);
}

.header-dropdown .dropdown-item:hover {
  background: rgba(43, 88, 150, 0.05);
  color: var(--blue);
}

/* ===== MINIMAL FOOTER ===== */
.minimal-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
  margin-top: auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-logo {
  font-size: 1rem;
  font-weight: 600;
  color: var(--blue);
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--text-light);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.footer-link {
  font-size: 0.9375rem;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--blue);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .header-content {
    gap: 1rem;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }
}

/* Стили для видео блоков - Knowmad Style */
.video-content {
  margin: 1rem 0;
}

.video-content .ratio {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-content .ratio:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.video-content iframe,
.video-content video {
  border: none;
  border-radius: 8px;
}

/* YouTube плеер */
#youtube-player-* {
  background: #000;
  border-radius: 8px;
}

/* Fallback сообщения */
.video-fallback {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border: 1px solid #dee2e6;
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
}

.video-fallback i {
  color: #ffc107;
  margin-bottom: 1rem;
}

.video-fallback h5 {
  color: #495057;
  margin-bottom: 0.5rem;
}

.video-fallback p {
  color: #6c757d;
  margin-bottom: 1.5rem;
}

/* Анимации для видео блоков */
.video-content {
  transition: all 0.3s ease;
}

.video-content:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
  .video-content .ratio {
    margin: 0 -15px;
    border-radius: 0;
  }
  
  .video-content .ratio iframe,
  .video-content .ratio video {
    border-radius: 0;
  }
}