/* Samples carousel — образцы листов проектной документации */

.samples-section {
  padding: clamp(76px, 10vw, 145px) clamp(24px, 7vw, 110px);
  background: #f8f6f0;
}

.samples-hero {
  max-width: 760px;
  margin-bottom: 40px;
}

.samples-hero h2 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.08;
  font-size: clamp(38px, 4.6vw, 72px);
  margin: 0 0 0.34em;
}

.samples-hero p {
  color: #68716c;
  font-size: 15px;
  max-width: 620px;
  margin: 0;
}

/* Табы */
.samples-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding-bottom: 4px;
}

.samples-tab {
  border: 1px solid var(--line);
  background: transparent;
  padding: 10px 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  white-space: nowrap;
  line-height: 1.2;
}

.samples-tab small {
  font-size: 10px;
  font-weight: 500;
  color: #7a827d;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.samples-tab:hover {
  border-color: var(--forest);
}

.samples-tab.is-active {
  background: var(--forest);
  border-color: var(--forest);
  color: #fff;
}

.samples-tab.is-active small {
  color: #c6d2cd;
}

/* Панель метаданных пакета */
.samples-package-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  background: #fff;
  margin-bottom: 22px;
  font-size: 12px;
  align-items: center;
}

.samples-package-meta strong {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 400;
  color: var(--forest);
}

.samples-package-meta span {
  color: #68716c;
  display: inline-flex;
  gap: 6px;
  align-items: baseline;
}

.samples-package-meta span b {
  color: var(--ink);
  font-weight: 700;
}

.samples-package-meta em {
  font-style: normal;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #a8a397;
}

/* Карусель */
.samples-viewport {
  position: relative;
}

.samples-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--forest) transparent;
  padding: 6px 6px 22px;
  margin: 0 -6px;
}

.samples-track::-webkit-scrollbar {
  height: 6px;
}

.samples-track::-webkit-scrollbar-thumb {
  background: var(--forest);
  border-radius: 3px;
}

.samples-track::-webkit-scrollbar-track {
  background: rgba(24, 35, 31, 0.06);
}

.samples-slide {
  flex: 0 0 340px;
  scroll-snap-align: start;
  background: #fff;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.25s, transform 0.25s;
}

.samples-slide:hover {
  box-shadow: 0 18px 40px rgba(20, 33, 27, 0.14);
  transform: translateY(-3px);
}

.samples-image {
  display: block;
  position: relative;
  background: #ece8df;
  aspect-ratio: 1 / 1.414; /* A4 портрет */
  overflow: hidden;
  cursor: zoom-in;
}

.samples-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.samples-slide-meta {
  padding: 16px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.samples-slide-index {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #7a827d;
}

.samples-slide-meta h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 19px;
  line-height: 1.2;
  margin: 0;
  color: var(--ink);
}

.samples-slide-meta p {
  font-size: 12px;
  color: #68716c;
  margin: 4px 0 0;
  line-height: 1.5;
}

.samples-slide-meta p.placeholder {
  color: #a8a397;
  font-style: italic;
}

/* Кнопки навигации (только на десктопе) */
.samples-nav-prev,
.samples-nav-next {
  position: absolute;
  top: calc(50% - 22px);
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  z-index: 3;
  box-shadow: 0 8px 22px rgba(20, 33, 27, 0.12);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.samples-nav-prev:hover,
.samples-nav-next:hover {
  background: var(--forest);
  color: #fff;
  border-color: var(--forest);
}

.samples-nav-prev {
  left: -16px;
}

.samples-nav-next {
  right: -16px;
}

@media (min-width: 900px) {
  .samples-nav-prev,
  .samples-nav-next {
    display: inline-flex;
  }
}

/* Мобильные слайды */
@media (max-width: 780px) {
  .samples-slide {
    flex-basis: 82vw;
    max-width: 340px;
  }

  .samples-section {
    padding: 60px 22px;
  }

  .samples-package-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* Состояния загрузки / ошибок */
.samples-status {
  padding: 24px;
  border: 1px dashed var(--line);
  background: #fff;
  color: #68716c;
  font-size: 13px;
}

.samples-status.error {
  border-color: var(--accent);
  color: #a54825;
}

/* Lightbox */
.samples-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(13, 24, 21, 0.85);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 60;
  padding: 20px;
}

.samples-lightbox.is-open {
  display: flex;
}

.samples-lightbox-content {
  position: relative;
  max-width: min(90vw, 900px);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.samples-lightbox img {
  max-width: 100%;
  max-height: 82vh;
  object-fit: contain;
  background: #fff;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.samples-lightbox-meta {
  color: var(--paper);
  font-size: 12px;
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
  padding: 4px 2px;
}

.samples-lightbox-meta strong {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 400;
  color: #fff;
}

.samples-lightbox-close {
  position: absolute;
  right: -8px;
  top: -46px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 0;
  background: #fff;
  color: var(--ink);
  font-size: 22px;
  cursor: pointer;
  display: grid;
  place-items: center;
  line-height: 1;
}

@media (max-width: 780px) {
  .samples-lightbox-close {
    top: -42px;
    right: 0;
  }
}