/* ============================================
   ARTICLE PAGE STYLES
   Instalatér Pro Servis - Article
   ============================================ */

/* CSS Variables */
:root {
  --article-primary: #0077b6;
  --article-primary-dark: #005a8c;
  --article-accent: #ff6b35;
  --article-gray-50: #f8fafc;
  --article-gray-100: #f1f5f9;
  --article-gray-200: #e2e8f0;
  --article-gray-300: #cbd5e1;
  --article-gray-400: #94a3b8;
  --article-gray-500: #64748b;
  --article-gray-600: #475569;
  --article-gray-700: #334155;
  --article-gray-800: #1e293b;
  --article-gray-900: #0f172a;
  --article-white: #ffffff;
  --article-radius: 16px;
  --article-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Container */
.fe-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   ARTICLE HERO
   ============================================ */

.article-hero {
  position: relative;
  padding: 120px 0 40px;
  background: linear-gradient(135deg, var(--article-gray-900) 0%, var(--article-gray-800) 100%);
  overflow: hidden;
}

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

.article-hero__shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
}

.article-hero__shape--1 {
  width: 500px;
  height: 500px;
  background: var(--article-primary);
  top: -200px;
  right: -100px;
}

.article-hero__shape--2 {
  width: 350px;
  height: 350px;
  background: var(--article-accent);
  bottom: -150px;
  left: -80px;
}

/* Breadcrumb */
.article-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.article-hero__breadcrumb-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--article-gray-400);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

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

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

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

.article-hero__breadcrumb-current {
  color: var(--article-primary);
  font-size: 14px;
  font-weight: 500;
}

/* ============================================
   ARTICLE MAIN
   ============================================ */

.article-main {
  padding: 60px 0 80px;
  background: var(--article-gray-50);
}

/* ============================================
   ARTICLE
   ============================================ */

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

/* Article Header */
.article__header {
  padding: 40px 40px 0;
}

.article__category {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--article-primary);
  color: var(--article-white);
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.article__category img {
  width: 16px;
  height: 16px;
  filter: brightness(0) invert(1);
}

.article__title {
  font-size: 36px;
  font-weight: 800;
  color: var(--article-gray-900);
  line-height: 1.3;
  margin: 0 0 20px;
}

.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--article-gray-200);
}

.article__meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--article-gray-500);
}

.article__meta-item img {
  opacity: 0.6;
}

/* Article Image */
.article__image {
  margin: 0;
  padding: 0 40px;
}

.article__image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  margin-top: 30px;
}

.article__image-caption {
  font-size: 13px;
  color: var(--article-gray-500);
  text-align: center;
  margin-top: 12px;
  font-style: italic;
}

/* Article Intro */
.article__intro {
  padding: 30px 40px 0;
  font-size: 18px;
  line-height: 1.8;
  color: var(--article-gray-700);
}

.article__intro p {
  margin: 0;
}

/* Article Content */
.article__content {
  padding: 30px 40px;
}

.article__content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--article-gray-900);
  margin: 40px 0 20px;
  line-height: 1.3;
}

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

.article__content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--article-gray-800);
  margin: 30px 0 15px;
  line-height: 1.4;
}

.article__content p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--article-gray-700);
  margin: 0 0 20px;
}

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

.article__content li {
  font-size: 16px;
  line-height: 1.7;
  color: var(--article-gray-700);
  margin-bottom: 10px;
}

.article__content blockquote {
  margin: 30px 0;
  padding: 24px 30px;
  background: var(--article-gray-50);
  border-left: 4px solid var(--article-primary);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: var(--article-gray-700);
}

.article__content blockquote p {
  margin: 0;
}

.article__content a {
  color: var(--article-primary);
  text-decoration: underline;
  transition: color 0.2s ease;
}

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

.article__content strong {
  color: var(--article-gray-900);
  font-weight: 600;
}

.article__content code {
  background: var(--article-gray-100);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 14px;
  font-family: monospace;
}

.article__content pre {
  background: var(--article-gray-900);
  color: var(--article-gray-100);
  padding: 24px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 24px 0;
}

.article__content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Article Conclusion */
.article__conclusion {
  padding: 0 40px 30px;
  border-top: 1px solid var(--article-gray-200);
  margin-top: 20px;
  padding-top: 30px;
}

.article__conclusion-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--article-gray-900);
  margin: 0 0 16px;
}

.article__conclusion p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--article-gray-700);
  margin: 0;
}

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

/* Article Tags */
.article__tags {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 40px;
  background: var(--article-gray-50);
  border-top: 1px solid var(--article-gray-200);
}

.article__tags img {
  filter: brightness(0) saturate(100%) invert(60%) sepia(60%) saturate(500%) hue-rotate(10deg);
}

.article__tags span {
  font-size: 14px;
  color: var(--article-gray-600);
}

/* Article CTA */
.article__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px 40px;
  background: linear-gradient(135deg, var(--article-gray-900) 0%, var(--article-gray-800) 100%);
}

.article__cta-content {
  flex: 1;
}

.article__cta-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--article-white);
  margin: 0 0 8px;
}

.article__cta-text {
  font-size: 14px;
  color: var(--article-gray-400);
  margin: 0;
}

.article__cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  background: var(--article-primary);
  color: var(--article-white);
  border-radius: 12px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.article__cta-btn:hover {
  background: var(--article-primary-dark);
  transform: translateY(-2px);
}

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

/* ============================================
   RELATED ARTICLES
   ============================================ */

.article-related {
  max-width: 800px;
  margin: 0 auto;
}

.article-related__title {
  font-size: 28px;
  font-weight: 800;
  color: var(--article-gray-900);
  margin: 0 0 28px;
  text-align: center;
}

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

.article-related__card {
  background: var(--article-white);
  border-radius: var(--article-radius);
  box-shadow: var(--article-shadow);
  transition: all 0.3s ease;
  overflow: hidden;
}

.article-related__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.article-related__link {
  display: block;
  padding: 24px;
  text-decoration: none;
  color: inherit;
}

.article-related__icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(0, 119, 182, 0.1) 0%, rgba(0, 119, 182, 0.2) 100%);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.article-related__icon img {
  filter: brightness(0) saturate(100%) invert(35%) sepia(98%) saturate(1000%) hue-rotate(175deg);
}

.article-related__card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--article-gray-900);
  margin: 0 0 16px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-related__arrow {
  width: 36px;
  height: 36px;
  background: var(--article-gray-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

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

.article-related__arrow img {
  transition: filter 0.2s ease;
}

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

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

/* Tablet */
@media (max-width: 1024px) {
  .article-hero {
    padding: 110px 0 35px;
  }

  .article__title {
    font-size: 32px;
  }

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

  .article-related__card:last-child {
    grid-column: span 2;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .fe-container {
    padding: 0 20px;
  }

  .article-hero {
    padding: 100px 0 30px;
  }

  .article {
    border-radius: 12px;
    margin-bottom: 50px;
  }

  .article__header {
    padding: 28px 24px 0;
  }

  .article__category {
    font-size: 12px;
    padding: 6px 14px;
  }

  .article__title {
    font-size: 26px;
  }

  .article__meta {
    gap: 14px;
  }

  .article__meta-item {
    font-size: 13px;
  }

  .article__image {
    padding: 0 24px;
  }

  .article__intro {
    padding: 24px 24px 0;
    font-size: 16px;
  }

  .article__content {
    padding: 24px;
  }

  .article__content h2 {
    font-size: 22px;
    margin: 32px 0 16px;
  }

  .article__content h3 {
    font-size: 18px;
  }

  .article__content p,
  .article__content li {
    font-size: 15px;
  }

  .article__conclusion {
    padding: 24px;
  }

  .article__conclusion-title {
    font-size: 20px;
  }

  .article__tags {
    padding: 16px 24px;
  }

  .article__cta {
    flex-direction: column;
    text-align: center;
    padding: 28px 24px;
  }

  .article__cta-title {
    font-size: 18px;
  }

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

  .article-related__title {
    font-size: 24px;
  }

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

  .article-related__card:last-child {
    grid-column: span 1;
  }

  .article-related__link {
    padding: 20px;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .fe-container {
    padding: 0 16px;
  }

  .article-hero {
    padding: 90px 0 24px;
  }

  .article-hero__breadcrumb {
    gap: 8px;
  }

  .article-hero__breadcrumb-link {
    font-size: 13px;
  }

  .article__header {
    padding: 24px 20px 0;
  }

  .article__title {
    font-size: 22px;
  }

  .article__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .article__image {
    padding: 0 20px;
  }

  .article__intro {
    padding: 20px 20px 0;
  }

  .article__content {
    padding: 20px;
  }

  .article__content h2 {
    font-size: 20px;
  }

  .article__content h3 {
    font-size: 17px;
  }

  .article__content blockquote {
    padding: 20px;
  }

  .article__conclusion {
    padding: 20px;
  }

  .article__conclusion-title {
    font-size: 18px;
  }

  .article__tags {
    padding: 14px 20px;
  }

  .article__cta {
    padding: 24px 20px;
  }

  .article__cta-title {
    font-size: 16px;
  }

  .article__cta-btn {
    padding: 14px 24px;
    font-size: 15px;
  }

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

  .article-related__link {
    padding: 18px;
  }

  .article-related__icon {
    width: 46px;
    height: 46px;
  }

  .article-related__card-title {
    font-size: 15px;
  }
}

/* Extra Small (375px) */
@media (max-width: 375px) {
  .article__title {
    font-size: 20px;
  }

  .article__content h2 {
    font-size: 18px;
  }

  .article__content h3 {
    font-size: 16px;
  }

  .article__cta-title {
    font-size: 15px;
  }

  .article-related__title {
    font-size: 18px;
  }
}