@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:wght@600;700;800&display=swap");

:root {
  --brand-primary: #d45141;
  --brand-primary-dark: #a83c31;
  --brand-ink: #202428;
  --brand-muted: #626b74;
  --brand-soft: #fff4f1;
  --brand-cream: #f8eee9;
  --brand-line: rgba(32, 36, 40, 0.12);
  --brand-shadow: 0 20px 54px rgba(32, 36, 40, 0.09);
  --bs-primary: #d45141;
  --bs-primary-rgb: 212, 81, 65;
}

* {
  box-sizing: border-box;
  min-width: 0;
}

*::before,
*::after {
  box-sizing: border-box;
}

body {
  color: var(--brand-ink);
  font-family: "Inter", sans-serif;
  padding-top: 78px;
  background: #fff;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Playfair Display", serif;
  font-weight: 800;
}

.btn {
  border-radius: 999px;
  font-weight: 800;
  padding-inline: 1.15rem;
}

.btn-primary {
  --bs-btn-bg: var(--brand-primary);
  --bs-btn-border-color: var(--brand-primary);
  --bs-btn-hover-bg: var(--brand-primary-dark);
  --bs-btn-hover-border-color: var(--brand-primary-dark);
  --bs-btn-active-bg: var(--brand-primary-dark);
  --bs-btn-active-border-color: var(--brand-primary-dark);
}

.btn-outline-primary {
  --bs-btn-color: var(--brand-primary);
  --bs-btn-border-color: rgba(212, 81, 65, 0.45);
  --bs-btn-hover-bg: var(--brand-primary);
  --bs-btn-hover-border-color: var(--brand-primary);
}

.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--brand-line);
  z-index: 1030;
}

.brand-logo {
  display: block;
  width: auto;
  height: 52px;
}

.navbar-nav .nav-link {
  color: var(--brand-ink);
  font-weight: 750;
  padding-left: 1rem;
  padding-right: 1rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus,
.navbar-nav .nav-link.active {
  color: var(--brand-primary);
}

.category-hero,
.product-hero {
  position: relative;
  overflow: hidden;
  padding: 70px 0 56px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 247, 245, 0.94) 55%, rgba(248, 238, 233, 0.94) 100%),
    radial-gradient(circle at 82% 18%, rgba(212, 81, 65, 0.2), transparent 34%);
}

.category-hero {
  padding: 44px 0 34px;
}

.category-hero::after,
.product-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(212, 81, 65, 0.08);
  pointer-events: none;
}

.section-kicker {
  color: var(--brand-primary);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.category-title,
.product-hero-title {
  font-size: clamp(2rem, 4.4vw, 4.05rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.category-title {
  font-size: clamp(1.9rem, 3.5vw, 3.25rem);
}

.category-hero + .section-padding {
  padding-top: 34px;
}

.category-description,
.product-hero-copy {
  color: var(--brand-muted);
  font-size: clamp(1.04rem, 1.8vw, 1.22rem);
  line-height: 1.75;
  max-width: 790px;
}

.hero-summary {
  border-left: 4px solid var(--brand-primary);
  background: rgba(255, 255, 255, 0.72);
  padding: 24px;
}

.hero-summary strong,
.hero-summary span {
  display: block;
}

.hero-summary strong {
  font-size: 2rem;
  line-height: 1;
}

.hero-summary span {
  color: var(--brand-muted);
  margin-top: 10px;
}

.section-padding {
  padding: 64px 0;
}

.category-guide {
  display: grid;
  gap: 22px;
  height: 100%;
  border-left: 1px solid var(--brand-line);
  padding-left: clamp(0px, 4vw, 34px);
}

.category-guide h3 {
  font-family: "Inter", sans-serif;
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.category-guide ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  color: var(--brand-muted);
  list-style: none;
}

.category-guide li::before {
  content: "•";
  color: var(--brand-primary);
  font-weight: 800;
  margin-right: 8px;
}

.product-card {
  height: 100%;
  overflow: hidden;
  border: 1px solid var(--brand-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(32, 36, 40, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(212, 81, 65, 0.26);
  box-shadow: var(--brand-shadow);
}

.product-image-link {
  display: block;
  background: linear-gradient(180deg, #fff 0%, #fff8f6 100%);
}

.product-card img {
  width: 100%;
  height: 255px;
  padding: 20px;
  object-fit: contain;
}

.product-card-body {
  gap: 12px;
  padding: 24px;
}

.product-card h2 {
  font-family: "Inter", sans-serif;
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.35;
}

.product-card h2 a {
  color: var(--brand-ink);
  text-decoration: none;
}

.product-card h2 a:hover {
  color: var(--brand-primary);
}

.product-card p {
  color: var(--brand-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

.card-feature-block {
  margin-top: 2px;
  padding: 14px;
  border-radius: 8px;
  background: #fff8f6;
}

.card-feature-block strong {
  display: block;
  color: var(--brand-ink);
  font-size: 0.82rem;
  font-weight: 850;
  margin-bottom: 8px;
}

.card-feature-block ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card-feature-block li {
  color: var(--brand-muted);
  font-size: 0.92rem;
  line-height: 1.45;
  padding-left: 18px;
  position: relative;
}

.card-feature-block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--brand-primary);
}

.product-card-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: auto;
}

.product-card-actions .btn {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: normal;
}

.product-badge {
  align-self: flex-start;
  display: inline-flex;
  margin-bottom: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  background: #fff3cd;
  color: #815500;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.breadcrumb-link {
  color: var(--brand-primary);
  font-weight: 800;
  text-decoration: none;
}

.keyword-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-strip span {
  border: 1px solid rgba(212, 81, 65, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--brand-primary-dark);
  font-size: 0.86rem;
  font-weight: 750;
  padding: 7px 12px;
}

.product-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
  padding: 30px;
  border: 1px solid rgba(212, 81, 65, 0.16);
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 18%, rgba(212, 81, 65, 0.1), transparent 35%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(255, 244, 241, 0.86));
  box-shadow: var(--brand-shadow);
}

.product-detail-image {
  display: block;
  width: 100%;
  max-height: 510px;
  object-fit: contain;
}

.info-panel {
  height: 100%;
  padding: 28px;
  border: 1px solid var(--brand-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(32, 36, 40, 0.05);
}

.accent-panel {
  background: linear-gradient(180deg, #fff 0%, #fff8f6 100%);
}

.info-panel h2,
.info-panel h3 {
  font-weight: 800;
}

.feature-list,
.spec-list,
.process-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li,
.spec-list li,
.process-list li {
  padding-left: 18px;
  border-left: 3px solid rgba(212, 81, 65, 0.3);
  color: var(--brand-muted);
  line-height: 1.65;
}

.detail-copy {
  color: var(--brand-muted);
  font-size: 1.04rem;
  line-height: 1.78;
}

.detail-copy:last-child {
  margin-bottom: 0;
}

.seo-band {
  padding: 0 0 64px;
  background: #fff;
}

.seo-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark));
  color: #fff;
  padding: clamp(28px, 5vw, 44px);
}

.seo-panel .section-kicker {
  color: #ffe4df;
}

.seo-panel p {
  color: rgba(255, 255, 255, 0.84);
}

.product-faq .accordion-item {
  border: 1px solid var(--brand-line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(32, 36, 40, 0.04);
}

.product-faq .accordion-item + .accordion-item {
  margin-top: 12px;
}

.product-faq .accordion-button {
  color: var(--brand-ink);
  font-weight: 800;
  line-height: 1.45;
  padding: 18px 20px;
}

.product-faq .accordion-button:not(.collapsed) {
  background: var(--brand-soft);
  color: var(--brand-primary-dark);
  box-shadow: none;
}

.product-faq .accordion-button:focus {
  border-color: rgba(212, 81, 65, 0.3);
  box-shadow: 0 0 0 0.2rem rgba(212, 81, 65, 0.16);
}

.product-faq .accordion-body {
  color: var(--brand-muted);
  line-height: 1.7;
}

.related-section {
  background: linear-gradient(180deg, #fff 0%, #fff8f6 100%);
}

.related-card {
  overflow: hidden;
  border: 1px solid var(--brand-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(32, 36, 40, 0.05);
}

.related-image {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 190px;
  background: linear-gradient(180deg, #fff 0%, #fff8f6 100%);
}

.related-image img {
  width: 100%;
  height: 190px;
  padding: 18px;
  object-fit: contain;
}

.related-body {
  padding: 20px;
}

.related-body span {
  color: var(--brand-primary);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.related-body h3 {
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  line-height: 1.35;
  margin: 10px 0;
}

.related-body h3 a {
  color: var(--brand-ink);
  text-decoration: none;
}

.related-body h3 a:hover {
  color: var(--brand-primary);
}

.related-body p {
  color: var(--brand-muted);
  font-size: 0.94rem;
  line-height: 1.55;
  margin-bottom: 0;
}

.footer {
  background: #1f2428;
  color: rgba(255, 255, 255, 0.72);
}

.footer a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

.footer a:hover,
.footer a:focus {
  color: #fff;
}

.footer-logo {
  width: auto;
  height: 54px;
  background: #fff;
  border-radius: 999px;
  padding: 4px 10px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.58);
}

.calculator-shell {
  border: 1px solid var(--brand-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--brand-shadow);
  overflow: hidden;
}

.calculator-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: 1px solid var(--brand-line);
}

.calculator-tab {
  border: 0;
  background: #fff;
  color: var(--brand-muted);
  font-weight: 800;
  padding: 16px;
}

.calculator-tab.active {
  background: var(--brand-soft);
  color: var(--brand-primary-dark);
}

.calculator-panel {
  display: none;
  padding: clamp(22px, 4vw, 34px);
}

.calculator-panel.active {
  display: block;
}

.form-label {
  font-weight: 800;
}

.preset-grid,
.result-grid,
.cost-grid {
  display: grid;
  gap: 14px;
}

.preset-grid {
  grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
}

.preset-card,
.metric-card,
.cost-card {
  border: 1px solid var(--brand-line);
  border-radius: 8px;
  background: #fff;
  padding: 16px;
}

.preset-card {
  text-align: left;
  transition: border-color 180ms ease, transform 180ms ease;
}

.preset-card:hover,
.preset-card:focus {
  border-color: rgba(212, 81, 65, 0.45);
  transform: translateY(-2px);
}

.metric-card strong,
.cost-card strong {
  display: block;
  color: var(--brand-ink);
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.1;
}

.metric-card span,
.cost-card span {
  color: var(--brand-muted);
  font-size: 0.9rem;
}

.result-highlight {
  border-color: rgba(212, 81, 65, 0.32);
  background: linear-gradient(180deg, #fff8f6, #fff);
}

.product-card.recommended {
  border-color: rgba(212, 81, 65, 0.45);
  box-shadow: 0 20px 54px rgba(212, 81, 65, 0.14);
}

.lead-form-card {
  border: 1px solid rgba(212, 81, 65, 0.18);
  border-radius: 8px;
  background: linear-gradient(145deg, #fff, #fff8f6);
  box-shadow: var(--brand-shadow);
  padding: clamp(24px, 4vw, 38px);
}

.article-body {
  color: var(--brand-muted);
  font-size: 1.04rem;
  line-height: 1.82;
}

.article-body h2,
.article-body h3 {
  color: var(--brand-ink);
  margin-top: 2.2rem;
}

.internal-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.internal-link-list a {
  display: inline-flex;
  border: 1px solid rgba(212, 81, 65, 0.28);
  border-radius: 999px;
  color: var(--brand-primary-dark);
  font-weight: 800;
  padding: 8px 14px;
  text-decoration: none;
}

.blog-article-visual {
  aspect-ratio: 16 / 9;
  min-height: auto;
  padding: 0;
}

.blog-article-visual img {
  width: 100%;
  height: 100%;
  border-radius: 18px;
  object-fit: cover;
}

.blog-article-body a {
  color: var(--brand-primary-dark);
  font-weight: 750;
  text-decoration-color: rgba(212, 81, 65, 0.35);
  text-underline-offset: 3px;
}

.article-figure {
  margin: 2rem 0;
}

.article-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  object-fit: cover;
  box-shadow: 0 16px 44px rgba(32, 36, 40, 0.1);
}

.article-figure figcaption {
  color: var(--brand-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-top: 10px;
}

.blog-side-panel {
  top: 98px;
}

.trend-section {
  position: relative;
  overflow: hidden;
  padding: 92px 0;
  background:
    radial-gradient(circle at 14% 10%, rgba(212, 81, 65, 0.12), transparent 24%),
    radial-gradient(circle at 88% 18%, rgba(128, 171, 137, 0.13), transparent 24%),
    linear-gradient(180deg, #fffaf7 0%, #fff 58%, #fff7f3 100%);
}

.trend-section::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.42;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(212, 81, 65, 0.14) 1px, transparent 1px),
    linear-gradient(135deg, rgba(212, 81, 65, 0.05), transparent 34%);
  background-position: 0 0, center;
  background-size: 24px 24px, auto;
}

.trend-section .container {
  position: relative;
  z-index: 1;
}

.trend-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.trend-card {
  min-height: 100%;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: all 0.3s ease;
}

.trend-card:hover,
.trend-card:focus-within {
  transform: translateY(-8px);
  box-shadow: 0 22px 54px rgba(32, 36, 40, 0.14);
}

.trend-card.featured {
  grid-column: span 2;
}

.trend-card-link {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  color: inherit;
  text-decoration: none;
}

.trend-card-link:focus-visible {
  outline: 3px solid rgba(212, 81, 65, 0.42);
  outline-offset: 5px;
  border-radius: 24px;
}

.trend-card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f8eee9;
}

.trend-card.featured .trend-card-media {
  aspect-ratio: 2 / 1;
}

.trend-card-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.trend-card:hover .trend-card-media img,
.trend-card:focus-within .trend-card-media img {
  transform: scale(1.045);
}

.trend-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: 999px;
  background: rgba(255, 244, 241, 0.92);
  color: var(--brand-primary-dark);
  font-size: 0.75rem;
  font-weight: 850;
  padding: 6px 12px;
  backdrop-filter: blur(10px);
}

.trend-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 24px;
}

.trend-meta {
  color: var(--brand-muted);
  font-size: 0.86rem;
  font-weight: 750;
  margin-bottom: 10px;
}

.trend-card h3 {
  color: var(--brand-ink);
  font-family: "Inter", sans-serif;
  font-size: 28px;
  font-weight: 850;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin-bottom: 12px;
}

.trend-card p {
  display: -webkit-box;
  overflow: hidden;
  color: var(--brand-muted);
  font-size: 1rem;
  line-height: 1.62;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.trend-cta {
  color: var(--brand-primary);
  font-weight: 850;
  margin-top: auto;
  transition: color 0.3s ease, transform 0.3s ease;
}

.trend-card:hover .trend-cta,
.trend-card:focus-within .trend-cta {
  color: var(--brand-primary-dark);
  transform: translateX(3px);
}

.trend-section-actions {
  display: flex;
  justify-content: center;
  margin-top: 34px;
}

.trend-all-button {
  border-radius: 999px;
  background: var(--brand-primary);
  color: #fff;
  font-weight: 850;
  padding: 13px 24px;
  text-decoration: none;
  box-shadow: 0 14px 34px rgba(212, 81, 65, 0.24);
  transition: all 0.3s ease;
}

.trend-all-button:hover,
.trend-all-button:focus {
  background: var(--brand-primary-dark);
  color: #fff;
  transform: translateY(-2px);
}

.blog-index-section {
  padding-top: 56px;
}

.mobile-sticky-cta {
  display: none;
}

@media (max-width: 991.98px) {
  .category-guide {
    border-left: 0;
    border-top: 1px solid var(--brand-line);
    padding-top: 24px;
    padding-left: 0;
  }

  .seo-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .trend-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trend-card.featured {
    grid-column: span 2;
  }
}

@media (max-width: 767.98px) {
  body {
    padding-top: 70px;
    padding-bottom: 78px;
    overflow-x: hidden;
  }

  .brand-logo {
    height: 42px;
  }

  .category-hero,
  .product-hero,
  .section-padding {
    padding: 56px 0;
  }

  .category-hero {
    padding: 34px 0 26px;
  }

  .category-hero + .section-padding {
    padding-top: 28px;
  }

  .category-hero .container,
  .product-hero .container {
    padding-left: 24px;
    padding-right: 24px;
  }

  .category-title,
  .product-hero-title {
    font-size: clamp(2rem, 9vw, 2.45rem);
    letter-spacing: -0.015em;
  }

  .category-description,
  .product-hero-copy {
    font-size: 1rem;
    line-height: 1.68;
    max-width: 28ch;
  }

  .category-hero .hero-summary,
  .product-hero .hero-summary {
    max-width: calc(100vw - 48px);
  }

  .category-hero .hero-summary span,
  .product-hero .hero-summary span {
    max-width: 26ch;
  }

  .seo-band {
    padding-bottom: 56px;
  }

  .product-card img {
    height: 220px;
  }

  .product-card-body {
    padding: 20px;
  }

  .product-card-actions {
    grid-template-columns: 1fr;
  }

  .product-visual {
    min-height: 300px;
    padding: 20px;
  }

  .category-hero .d-flex {
    display: grid !important;
    grid-template-columns: 1fr;
  }

  .category-hero .btn {
    width: 100%;
    white-space: normal;
  }

  .calculator-tabs {
    grid-template-columns: 1fr;
  }

  .mobile-sticky-cta {
    position: fixed;
    right: 14px;
    bottom: 14px;
    left: 14px;
    z-index: 1040;
    display: flex;
    justify-content: center;
    box-shadow: 0 12px 34px rgba(32, 36, 40, 0.22);
  }

  .trend-section {
    padding: 58px 0;
  }

  .trend-grid {
    grid-template-columns: 1fr;
  }

  .trend-card.featured {
    grid-column: auto;
  }

  .trend-card.featured .trend-card-media {
    aspect-ratio: 16 / 9;
  }

  .trend-card h3 {
    font-size: 1.35rem;
  }

  .trend-card-body {
    padding: 20px;
  }
}