/* ========================================
   ARTICLE PAGE STYLES
   NodRorlegger - Norwegian Plumbing Article
   ======================================== */

/* ========================================
   ARTICLE HERO SECTION
   ======================================== */
.article-hero {
  position: relative;
  padding: 50px 20px 30px;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2a4a 50%, var(--primary-dark) 100%);
  overflow: hidden;
}

.article-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.article-hero__shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.article-hero__shape--1 {
  width: 400px;
  height: 400px;
  top: -150px;
  left: -100px;
  background: var(--primary-color);
}

.article-hero__shape--2 {
  width: 300px;
  height: 300px;
  bottom: -100px;
  right: -50px;
  background: var(--accent-color);
}

/* Breadcrumb */
.article-hero__breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 900px;
  margin: 0 auto;
}

.article-hero__breadcrumb-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  transition: var(--transition-base);
}

.article-hero__breadcrumb-link:hover {
  color: white;
}

.article-hero__breadcrumb-link img {
  filter: brightness(0) invert(1);
  opacity: 0.7;
}

.article-hero__breadcrumb-sep {
  filter: brightness(0) invert(1);
  opacity: 0.4;
}

.article-hero__breadcrumb-current {
  color: var(--primary-light);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ========================================
   ARTICLE MAIN CONTAINER
   ======================================== */
.article-main {
  padding: 50px 20px 80px;
  background: var(--bg-secondary);
}

.article {
  max-width: 800px;
  margin: 0 auto 60px;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

/* ========================================
   ARTICLE HEADER
   ======================================== */
.article__header {
  padding: 40px 40px 30px;
  border-bottom: 1px solid var(--border-color);
}

.article__category {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0, 102, 204, 0.1);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.article__category img {
  filter: invert(29%) sepia(98%) saturate(1500%) hue-rotate(196deg) brightness(95%) contrast(101%);
}

.article__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 20px;
}

.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}

.article__meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.article__meta-item img {
  opacity: 0.6;
}

/* ========================================
   ARTICLE IMAGE
   ======================================== */
.article__image {
  margin: 0;
}

.article__image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 500px;
}

.article__image-caption {
  padding: 12px 40px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

/* ========================================
   ARTICLE INTRO
   ======================================== */
.article__intro {
  padding: 30px 40px;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.05) 0%, rgba(0, 102, 204, 0.02) 100%);
  border-left: 4px solid var(--primary-color);
}

.article__intro p {
  font-size: 1.15rem;
  color: var(--text-primary);
  line-height: 1.8;
  margin: 0;
  font-weight: 500;
}

/* ========================================
   ARTICLE CONTENT
   ======================================== */
.article__content {
  padding: 40px;
}

.article__content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 40px 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-color);
}

.article__content h2:first-child {
  margin-top: 0;
}

.article__content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 30px 0 16px;
}

.article__content p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.article__content ul,
.article__content ol {
  margin: 20px 0;
  padding-left: 24px;
}

.article__content li {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}

.article__content blockquote {
  margin: 30px 0;
  padding: 20px 30px;
  background: var(--bg-secondary);
  border-left: 4px solid var(--primary-color);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article__content blockquote p {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-primary);
  margin: 0;
}

.article__content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.article__content a {
  color: var(--primary-color);
  text-decoration: underline;
  transition: var(--transition-base);
}

.article__content a:hover {
  color: var(--primary-dark);
}

/* ========================================
   ARTICLE CONCLUSION
   ======================================== */
.article__conclusion {
  padding: 30px 40px;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2a4a 100%);
  border-radius: var(--radius-lg);
  margin: 0 40px 30px;
}

.article__conclusion-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}

.article__conclusion p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  margin: 0;
}

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

.article__conclusion a:hover {
  color: white;
}

/* ========================================
   ARTICLE TAGS
   ======================================== */
.article__tags {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 20px 40px;
  border-top: 1px solid var(--border-color);
}

.article__tags img {
  flex-shrink: 0;
  margin-top: 3px;
  filter: invert(75%) sepia(30%) saturate(600%) hue-rotate(10deg) brightness(95%) contrast(95%);
}

.article__tags span {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========================================
   ARTICLE CTA
   ======================================== */
.article__cta {
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 30px 40px;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.08) 0%, rgba(0, 102, 204, 0.03) 100%);
  border-top: 1px solid var(--border-color);
}

.article__cta-content {
  flex: 1;
}

.article__cta-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.article__cta-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.article__cta-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition: var(--transition-base);
}

.article__cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 102, 204, 0.4);
}

.article__cta-btn img {
  filter: brightness(0) invert(1);
}

/* ========================================
   RELATED ARTICLES
   ======================================== */
.article-related {
  max-width: 800px;
  margin: 0 auto;
}

.article-related__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  text-align: center;
}

.article-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.article-related__card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition-base);
  overflow: hidden;
}

.article-related__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.article-related__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 24px;
}

.article-related__icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.article-related__icon img {
  filter: brightness(0) invert(1);
}

.article-related__card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: auto;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-related__arrow {
  width: 36px;
  height: 36px;
  background: var(--bg-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 16px;
  transition: var(--transition-base);
}

.article-related__arrow img {
  opacity: 0.5;
  transition: var(--transition-base);
}

.article-related__card:hover .article-related__arrow {
  background: var(--primary-color);
}

.article-related__card:hover .article-related__arrow img {
  filter: brightness(0) invert(1);
  opacity: 1;
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 100px;
  width: 50px;
  height: 50px;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition-base);
  z-index: 99;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.back-to-top:hover img {
  filter: brightness(0) invert(1);
}

.back-to-top img {
  transform: rotate(-90deg);
  opacity: 0.6;
  transition: var(--transition-base);
}

/* ========================================
   RESPONSIVE STYLES
   ======================================== */

/* 1200px - Large screens */
@media (max-width: 1200px) {
  .article-related__grid {
    gap: 16px;
  }
}

/* 1024px - Tablets landscape */
@media (max-width: 1024px) {
  .article__header {
    padding: 32px 32px 24px;
  }

  .article__image-caption {
    padding: 12px 32px;
  }

  .article__intro {
    padding: 24px 32px;
  }

  .article__content {
    padding: 32px;
  }

  .article__conclusion {
    margin: 0 32px 24px;
    padding: 24px 32px;
  }

  .article__tags {
    padding: 16px 32px;
  }

  .article__cta {
    padding: 24px 32px;
  }
}

/* 768px - Tablets portrait */
@media (max-width: 768px) {
  .article-hero {
    padding: 32px 20px 24px;
  }

  .article-main {
    padding: 40px 16px 60px;
  }

  .article {
    margin-bottom: 40px;
    border-radius: var(--radius-lg);
  }

  .article__header {
    padding: 28px 24px 20px;
  }

  .article__category {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .article__title {
    font-size: 1.5rem;
    margin-bottom: 16px;
  }

  .article__meta {
    gap: 12px;
  }

  .article__meta-item {
    font-size: 0.85rem;
  }

  .article__image img {
    max-height: 350px;
  }

  .article__image-caption {
    padding: 10px 24px;
    font-size: 0.8rem;
  }

  .article__intro {
    padding: 20px 24px;
  }

  .article__intro p {
    font-size: 1.05rem;
  }

  .article__content {
    padding: 24px;
  }

  .article__content h2 {
    font-size: 1.35rem;
    margin: 32px 0 16px;
  }

  .article__content h3 {
    font-size: 1.15rem;
  }

  .article__conclusion {
    margin: 0 24px 20px;
    padding: 20px 24px;
  }

  .article__conclusion-title {
    font-size: 1.2rem;
  }

  .article__tags {
    padding: 16px 24px;
  }

  .article__cta {
    flex-direction: column;
    padding: 24px;
    text-align: center;
    gap: 20px;
  }

  .article__cta-btn {
    width: 100%;
    justify-content: center;
  }

  .article-related__title {
    font-size: 1.35rem;
  }

  .article-related__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .article-related__link {
    flex-direction: row;
    align-items: center;
    padding: 20px;
    gap: 16px;
  }

  .article-related__icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    margin-bottom: 0;
  }

  .article-related__card-title {
    -webkit-line-clamp: 2;
    flex: 1;
  }

  .article-related__arrow {
    margin-top: 0;
    margin-left: auto;
    flex-shrink: 0;
  }

  .back-to-top {
    right: 16px;
    bottom: 90px;
    width: 44px;
    height: 44px;
  }
}

/* 480px - Mobile */
@media (max-width: 480px) {
  .article-hero {
    padding: 28px 16px 20px;
  }

  .article-hero__breadcrumb {
    gap: 8px;
  }

  .article-hero__breadcrumb-link {
    font-size: 0.8rem;
  }

  .article-hero__breadcrumb-current {
    font-size: 0.8rem;
  }

  .article-main {
    padding: 32px 12px 50px;
  }

  .article {
    margin-bottom: 32px;
  }

  .article__header {
    padding: 24px 20px 18px;
  }

  .article__title {
    font-size: 1.35rem;
  }

  .article__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .article__image img {
    max-height: 280px;
  }

  .article__image-caption {
    padding: 10px 20px;
  }

  .article__intro {
    padding: 18px 20px;
    border-left-width: 3px;
  }

  .article__intro p {
    font-size: 1rem;
  }

  .article__content {
    padding: 20px;
  }

  .article__content h2 {
    font-size: 1.25rem;
    margin: 28px 0 14px;
  }

  .article__content h3 {
    font-size: 1.1rem;
  }

  .article__content p,
  .article__content li {
    font-size: 0.95rem;
  }

  .article__content blockquote {
    padding: 16px 20px;
    margin: 24px 0;
  }

  .article__conclusion {
    margin: 0 20px 18px;
    padding: 18px 20px;
    border-radius: var(--radius-md);
  }

  .article__conclusion-title {
    font-size: 1.1rem;
  }

  .article__conclusion p {
    font-size: 0.95rem;
  }

  .article__tags {
    padding: 14px 20px;
  }

  .article__tags span {
    font-size: 0.85rem;
  }

  .article__cta {
    padding: 20px;
    gap: 16px;
  }

  .article__cta-title {
    font-size: 1.1rem;
  }

  .article__cta-text {
    font-size: 0.9rem;
  }

  .article__cta-btn {
    padding: 14px 24px;
    font-size: 0.95rem;
  }

  .article-related__title {
    font-size: 1.25rem;
    margin-bottom: 20px;
  }

  .article-related__link {
    padding: 16px;
  }

  .article-related__icon {
    width: 40px;
    height: 40px;
  }

  .article-related__card-title {
    font-size: 0.95rem;
  }

  .article-related__arrow {
    width: 32px;
    height: 32px;
  }

  .back-to-top {
    right: 12px;
    bottom: 80px;
    width: 40px;
    height: 40px;
  }
}

/* 375px - Small mobile */
@media (max-width: 375px) {
  .article-hero {
    padding: 24px 12px 16px;
  }

  .article-hero__breadcrumb-link {
    font-size: 0.75rem;
  }

  .article-hero__breadcrumb-current {
    font-size: 0.75rem;
  }

  .article-main {
    padding: 28px 10px 40px;
  }

  .article__header {
    padding: 20px 16px 16px;
  }

  .article__category {
    padding: 5px 10px;
    font-size: 0.75rem;
    gap: 6px;
  }

  .article__title {
    font-size: 1.2rem;
  }

  .article__meta-item {
    font-size: 0.8rem;
  }

  .article__image img {
    max-height: 220px;
  }

  .article__image-caption {
    padding: 8px 16px;
    font-size: 0.75rem;
  }

  .article__intro {
    padding: 16px;
  }

  .article__intro p {
    font-size: 0.95rem;
  }

  .article__content {
    padding: 16px;
  }

  .article__content h2 {
    font-size: 1.15rem;
  }

  .article__content h3 {
    font-size: 1.05rem;
  }

  .article__content p,
  .article__content li {
    font-size: 0.9rem;
  }

  .article__conclusion {
    margin: 0 16px 16px;
    padding: 16px;
  }

  .article__conclusion-title {
    font-size: 1.05rem;
  }

  .article__tags {
    padding: 12px 16px;
  }

  .article__cta {
    padding: 16px;
  }

  .article__cta-title {
    font-size: 1.05rem;
  }

  .article__cta-text {
    font-size: 0.85rem;
  }

  .article__cta-btn {
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .article-related__title {
    font-size: 1.15rem;
  }

  .article-related__link {
    padding: 14px;
    gap: 12px;
  }

  .article-related__icon {
    width: 36px;
    height: 36px;
  }

  .article-related__card-title {
    font-size: 0.9rem;
  }

  .article-related__arrow {
    width: 30px;
    height: 30px;
  }
}