/* ==========================================================================
   PAGE SPECIFIC STYLES: Известняковый щебень (pages_css/izvestnyakovyj-shcheben.css)
   ========================================================================== */

/* Breadcrumbs Section */
.breadcrumbs-section {
  padding-top: 16px;
  padding-bottom: 16px;
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--color-border-strong);
  font-size: 0.8125rem;
}

.breadcrumb-item a:hover {
  color: var(--color-primary);
}

.breadcrumb-item.active {
  color: var(--color-navy);
  font-weight: 600;
}

/* Section Common Layout */
.section {
  padding-top: 72px;
  padding-bottom: 72px;
}

.section-badge {
  display: inline-block;
  padding: 4px 12px;
  background-color: var(--color-primary-light);
  color: var(--color-primary-hover);
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.125rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 12px;
  line-height: 1.25;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* Page Hero */
.page-hero {
  padding-top: 56px;
  padding-bottom: 64px;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg-main) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--color-text-main);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-quick-features {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.quick-feat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy);
}

.feat-icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.hero-media {
  position: relative;
}

.hero-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background-color: var(--color-bg-muted);
}

.hero-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

.hero-media-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background-color: rgba(15, 39, 68, 0.92);
  backdrop-filter: blur(4px);
  color: #ffffff;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-media-badge strong {
  display: block;
  font-size: 1.25rem;
  color: var(--color-primary-light);
  line-height: 1.2;
}

.hero-media-badge span {
  font-size: 0.8125rem;
  color: #cbd5e1;
}

/* Benefits Section */
.benefits-section {
  background-color: var(--color-bg-main);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.benefit-card {
  background-color: var(--color-bg-alt);
  padding: 32px 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.benefit-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-hover);
}

.benefit-card-wide {
  grid-column: span 2;
}

.benefit-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.benefit-icon-box svg {
  width: 26px;
  height: 26px;
}

.benefit-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.benefit-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Fractions Section */
.fractions-section {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.fractions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.fraction-card {
  background-color: var(--color-bg-main);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.fraction-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.fraction-card-popular {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.popular-badge {
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-bottom-left-radius: var(--radius-md);
}

.fraction-header {
  padding: 24px 20px 16px;
  border-bottom: 1px solid var(--color-bg-muted);
}

.fraction-size {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.2;
}

.fraction-tag {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.fraction-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.fraction-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.fraction-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.fraction-list {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fraction-list li {
  font-size: 0.8125rem;
  color: var(--color-text-main);
  position: relative;
  padding-left: 16px;
}

.fraction-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.fraction-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--color-bg-muted);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fraction-price {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary-hover);
}

/* Specs Section */
.specs-section {
  background-color: var(--color-bg-main);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.spec-detail-card {
  background-color: var(--color-bg-alt);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.spec-header-box {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.spec-icon {
  width: 44px;
  height: 44px;
  background-color: var(--color-navy);
  color: #ffffff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.spec-icon svg {
  width: 22px;
  height: 22px;
}

.spec-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
}

.spec-value {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
}

.spec-body-text {
  font-size: 0.9375rem;
  color: var(--color-text-main);
  line-height: 1.65;
}

.specs-table-wrapper {
  overflow-x: auto;
  background-color: var(--color-bg-main);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9375rem;
}

.specs-table th {
  background-color: var(--color-navy);
  color: #ffffff;
  padding: 14px 20px;
  font-weight: 700;
}

.specs-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-main);
}

.specs-table tr:last-child td {
  border-bottom: none;
}

.specs-table tr:nth-child(even) {
  background-color: var(--color-bg-alt);
}

/* Fact Section */
.fact-section {
  background-color: var(--color-navy-dark);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.fact-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 48px;
}

.fact-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.fact-icon {
  width: 16px;
  height: 16px;
}

.fact-title {
  font-size: 2rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 20px;
}

.fact-text-content p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: #cbd5e1;
  margin-bottom: 16px;
}

.fact-text-content p:last-child {
  margin-bottom: 0;
}

/* Calculator Section */
.calculator-section {
  background-color: var(--color-bg-alt);
}

.calc-card-wrapper {
  background-color: var(--color-bg-main);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
}

.calc-info {
  padding: 48px;
  background-color: var(--color-navy);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.calc-info .section-badge {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-primary-light);
  align-self: flex-start;
}

.calc-title {
  font-size: 2.125rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 16px;
}

.calc-desc {
  font-size: 1rem;
  color: #94a3b8;
  line-height: 1.6;
  margin-bottom: 32px;
}

.calc-benefits-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.calc-b-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.c-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.c-icon svg {
  width: 18px;
  height: 18px;
}

.calc-b-item strong {
  display: block;
  font-size: 0.9375rem;
  color: #ffffff;
}

.calc-b-item span {
  display: block;
  font-size: 0.8125rem;
  color: #94a3b8;
}

.calc-form-box {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.form-box-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 24px;
}

/* FAQ Section */
.faq-section {
  background-color: var(--color-bg-main);
}

.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-main);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.is-open {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.faq-trigger {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-navy);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 16px;
}

.faq-trigger:hover {
  color: var(--color-primary);
}

.faq-chevron {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.is-open .faq-chevron {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-content {
  display: none;
  padding: 0 24px 20px 24px;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  border-top: 1px dashed var(--color-border);
  padding-top: 16px;
}

.faq-item.is-open .faq-content {
  display: block;
}

/* Related Materials Section */
.related-materials-section {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background-color: var(--color-bg-main);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.related-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.related-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.related-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex-grow: 1;
}

.related-link-str {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background-color: var(--color-bg-main);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  padding: 36px 32px;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--color-navy);
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.modal-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* Mandatory Cookie Banner CSS */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-navy-dark);
  color: #ffffff;
  padding: 16px 0;
  z-index: 1900;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.cookie-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.cookie-text {
  font-size: 0.875rem;
  color: #cbd5e1;
  margin: 0;
  line-height: 1.5;
}

.cookie-text a {
  color: var(--color-primary-light);
  text-decoration: underline;
}

.cookie-text a:hover {
  color: var(--color-primary);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid,
  .calc-card-wrapper {
    grid-template-columns: 1fr;
  }

  .fractions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .benefit-card-wide {
    grid-column: span 1;
  }

  .benefits-grid,
  .specs-grid {
    grid-template-columns: 1fr;
  }

  .calc-info,
  .calc-form-box {
    padding: 32px 24px;
  }

  .fact-box {
    padding: 32px 24px;
  }
}

@media (max-width: 640px) {
  .fractions-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .cookie-banner-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .modal-dialog {
    padding: 24px 20px;
  }
}