.useful-head { text-align: center; margin-bottom: var(--space-5); }

.useful-title {
  text-align: center;
  width: 100%;
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--c-title);
  font-size: var(--text-4xl);
  margin: 0 0 var(--space-5);
  font-family: var(--font-first);
  letter-spacing: -0.01em;
}

.useful-kicker {
  margin: 0 auto var(--space-12);
  font-size: var(--text-lg);
  color: var(--c-text-second);
  font-family: var(--font-first);
}

.useful-slider-wrap { position: relative; overflow: visible; }

.useful-swiper { overflow: hidden; padding: var(--space-3) 0 var(--space-10); }

.useful-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #ffffffdb;
  border: 1px solid var(--c-border-tips);
  border-radius: var(--r-sm);
  padding: 0 0 var(--space-4) 0;
  line-height: var(--leading-normal);
  text-align: left;
  font-family: var(--font-first);
  box-shadow: var(--shadow-card);
}

/* Thumb: фиксируем высоту контейнера, img растягиваем на 100% и обрезаем cover */
.useful-thumb {
  position: relative;
  overflow: hidden;
  background: #eee;
  border-radius: var(--r-sm) var(--r-sm) 0 0;
  height: 200px;
}

.useful-thumb img {
  width: 100%;
  height: 100%;
  display: block;
  background: transparent;
  object-fit: cover;
  object-position: center;
}

.useful-card-title {
  min-height: 44px;
  margin: var(--space-4) var(--space-5) var(--space-2);
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--c-text);
  font-family: var(--font-first);
}

.useful-card-title a,
.useful-card-title a:focus {
  color: var(--c-text) !important;
  text-decoration: none;
}

.post-card__meta {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-start;
  align-items: center;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  opacity: 0.6;
  margin: var(--space-3) 0 var(--space-2);
  font-family: var(--font-first);
}

.useful-section .post-card__meta {
  margin: var(--space-3) var(--space-5) var(--space-2);
}

.post-card__meta span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
}

.useful-excerpt {
  flex-grow: 1;
  margin: 0 var(--space-5) var(--space-3);
  font-size: var(--text-base);
  opacity: 0.75;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--c-text) !important;
  font-family: var(--font-first);
}

.useful-more {
  margin-top: auto;
  margin-left: var(--space-5);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  font-size: var(--text-xs);
  letter-spacing: 1px;
  text-decoration: underline;
  font-family: var(--font-first);
}

.useful-pagination { text-align: center; margin-top: var(--space-8); }

.useful-pagination .swiper-pagination-bullet {
  width: 11px;
  height: 11px;
  opacity: 0.25;
}

.useful-pagination .swiper-pagination-bullet-active {
  opacity: 1;
  background: var(--c-primary);
}

.useful-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border: none;
  background: #fff;
  border-radius: 50%;
  font-size: 2em;
  cursor: pointer;
  z-index: 5;
  box-shadow: var(--shadow-card);
  color: var(--c-text);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
  border: 1px solid var(--c-border);
  line-height: 1em;
}

.useful-prev { left: -65px; }
.useful-next { right: -65px; }

.useful-prev:hover { transform: translateY(-50%) scale(1.12) translateX(-2px); }
.useful-next:hover { transform: translateY(-50%) scale(1.12) translateX(2px); }

.useful-slider-wrap:hover .useful-nav { opacity: 1; }

.useful-footer { text-align: center; margin-top: var(--space-3); }

@media (max-width: 991px) {
  .useful-prev { left: var(--space-2); }
  .useful-next { right: var(--space-2); }
}

@media (min-width: 768px) and (max-width: 991px) {
  .useful-title { font-size: var(--text-4xl); }
}

@media (max-width: 767px) {
  .useful-title { font-size: var(--text-3xl); }
}