/**
 * Blog Styles
 * Matches kamkan.vip design system with DNB Eufemia colors
 */

/* === Variables === */
:root {
  /* DNB Colors */
  --color-emerald: #007272;
  --color-sea-green: #28b482;
  --color-sea-green-alt: #a5e1d2;
  --color-mint-green: #d8f0e7;
  --color-mint-green-alt: #f2fcf8;
  --color-ocean-green: #14555a;

  /* Text Colors */
  --color-black: #000000;
  --color-black-80: #2d2d2d;
  --color-black-55: #555555;
  --color-black-30: #b3b3b3;
  --color-white: #ffffff;

  /* Category Colors */
  --color-product: #007272;
  --color-ai: #28b482;
  --color-leadership: #14555a;
  --color-personal: #d8f0e7;
}

/* === Blog Listing Page === */

.blog-header {
  text-align: center;
  padding: 80px 20px 60px;
  max-width: 980px;
  margin: 0 auto;
}

.blog-header h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
}

.blog-header p {
  font-size: 1.25rem;
  color: var(--color-black-55);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Filters */
.blog-filters {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 20px 40px;
  max-width: 980px;
  margin: 0 auto;
}

.filter-btn {
  padding: 10px 24px;
  border: 2px solid var(--color-black-30);
  background: transparent;
  color: var(--color-black-80);
  border-radius: 24px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover {
  border-color: var(--color-emerald);
  color: var(--color-emerald);
  transform: translateY(-2px);
}

.filter-btn.active {
  border-color: var(--color-emerald);
  background: var(--color-emerald);
  color: var(--color-white);
}

/* Blog Grid */
.blog-posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
  gap: 32px;
  padding: 0 20px 80px;
  max-width: 980px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .blog-posts {
    grid-template-columns: 1fr;
  }
}

/* Blog Card */
.blog-card {
  background: var(--color-white);
  border: 1px solid var(--color-black-30);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  border-color: var(--color-emerald);
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 114, 114, 0.1);
}

.blog-card-image {
  display: block;
  width: 100%;
  height: 240px;
  overflow: hidden;
  background: var(--color-mint-green-alt);
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-image img {
  transform: scale(1.05);
}

.blog-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-black-55);
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.blog-meta-divider {
  color: var(--color-black-30);
}

.blog-category {
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-category[data-category="Product Management"] {
  background: rgba(0, 114, 114, 0.1);
  color: var(--color-emerald);
}

.blog-category[data-category="AI & Technology"] {
  background: rgba(40, 180, 130, 0.1);
  color: var(--color-sea-green);
}

.blog-category[data-category="Leadership"] {
  background: rgba(20, 85, 90, 0.1);
  color: var(--color-ocean-green);
}

.blog-category[data-category="Personal"] {
  background: var(--color-mint-green);
  color: var(--color-ocean-green);
}

.blog-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
}

.blog-card-title a {
  color: var(--color-black);
  text-decoration: none;
  transition: color 0.3s ease;
}

.blog-card-title a:hover {
  color: var(--color-emerald);
}

.blog-card-excerpt {
  color: var(--color-black-55);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-emerald);
  font-weight: 600;
  text-decoration: none;
  transition: gap 0.3s ease;
}

.read-more:hover {
  gap: 10px;
}

.read-more svg {
  transition: transform 0.3s ease;
}

.read-more:hover svg {
  transform: translateX(4px);
}

/* Vote Buttons */
.vote-buttons {
  display: flex;
  gap: 8px;
}

.vote-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 2px solid var(--color-black-30);
  background: var(--color-white);
  border-radius: 20px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.vote-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.fire-btn {
  border-color: #ff6b35;
  color: #ff6b35;
}

.fire-btn:hover:not(:disabled) {
  background: #ff6b35;
  color: var(--color-white);
}

.fire-btn.voted {
  background: #ff6b35;
  color: var(--color-white);
  border-color: #ff6b35;
}

.snow-btn {
  border-color: #4fc3f7;
  color: #4fc3f7;
}

.snow-btn:hover:not(:disabled) {
  background: #4fc3f7;
  color: var(--color-white);
}

.snow-btn.voted {
  background: #4fc3f7;
  color: var(--color-white);
  border-color: #4fc3f7;
}

.vote-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* === Blog Post Page === */

.post-cover-image {
  width: 100%;
  height: 400px;
  overflow: hidden;
  background: var(--color-mint-green-alt);
  margin-bottom: 40px;
}

.post-cover-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-header-content {
  max-width: 800px;
  margin: 0 auto 60px;
  padding: 0 20px;
}

.post-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-black);
  margin-bottom: 16px;
  letter-spacing: -0.025em;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  color: var(--color-black-55);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.post-tag {
  padding: 6px 14px;
  background: var(--color-mint-green);
  color: var(--color-ocean-green);
  border-radius: 16px;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Post Body */
.post-body {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px 60px;
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-black-80);
}

.post-body h2 {
  font-size: 2rem;
  font-weight: 700;
  margin: 48px 0 24px;
  color: var(--color-black);
  letter-spacing: -0.02em;
}

.post-body h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 40px 0 20px;
  color: var(--color-black);
}

.post-body h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 32px 0 16px;
  color: var(--color-black);
}

.post-body p {
  margin-bottom: 1.5em;
}

.post-body strong {
  font-weight: 700;
  color: var(--color-black);
}

.post-body em {
  font-style: italic;
}

.post-body a {
  color: var(--color-emerald);
  text-decoration: underline;
  transition: color 0.3s ease;
}

.post-body a:hover {
  color: var(--color-sea-green);
}

.post-body code {
  padding: 2px 8px;
  background: var(--color-mint-green-alt);
  color: var(--color-ocean-green);
  border-radius: 4px;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 0.9em;
}

.post-body blockquote {
  margin: 32px 0;
  padding: 24px;
  border-left: 4px solid var(--color-emerald);
  background: var(--color-mint-green-alt);
  font-size: 1.1em;
  font-style: italic;
  color: var(--color-black-80);
}

.post-body ul,
.post-body ol {
  margin: 24px 0;
  padding-left: 32px;
}

.post-body li {
  margin-bottom: 12px;
}

/* Images */
.blog-image {
  margin: 40px 0;
  text-align: center;
}

.blog-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.blog-image figcaption {
  margin-top: 12px;
  font-size: 0.9375rem;
  color: var(--color-black-55);
  font-style: italic;
}

/* Code Blocks */
.code-block {
  position: relative;
  margin: 32px 0;
  border-radius: 8px;
  overflow: hidden;
  background: #2d2d2d;
}

.code-filename {
  padding: 12px 20px;
  background: #1a1a1a;
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 600;
  border-bottom: 1px solid #3d3d3d;
}

.code-copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: #3d3d3d;
  color: var(--color-white);
  border: none;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
}

.code-copy-btn:hover {
  background: #4d4d4d;
}

.code-copy-btn.copied {
  background: var(--color-sea-green);
}

.code-block pre {
  margin: 0;
  padding: 20px;
  overflow-x: auto;
}

.code-block code {
  padding: 0;
  background: none;
  color: #f8f8f2;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Video Embeds */
.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  margin: 40px 0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Twitter Embed */
.twitter-embed {
  margin: 40px 0;
  display: flex;
  justify-content: center;
}

/* Post Footer */
.post-footer {
  max-width: 800px;
  margin: 60px auto 0;
  padding: 40px 20px;
  border-top: 2px solid var(--color-black-30);
}

.post-vote-section,
.post-share-section {
  margin-bottom: 40px;
}

.post-vote-section h3,
.post-share-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-black);
}

.post-vote-section .vote-buttons {
  justify-content: flex-start;
  gap: 12px;
}

.post-vote-section .vote-btn {
  font-size: 1.125rem;
  padding: 12px 24px;
}

/* Share Buttons */
.share-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border: 2px solid transparent;
  border-radius: 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.share-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.linkedin-btn {
  background: #0077b5;
  color: var(--color-white);
}

.linkedin-btn:hover {
  background: #006399;
}

.twitter-btn {
  background: #1da1f2;
  color: var(--color-white);
}

.twitter-btn:hover {
  background: #1a8cd8;
}

/* Back Link */
.back-to-blog {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 40px 20px 20px;
  max-width: 800px;
  margin: 0 auto;
  color: var(--color-emerald);
  font-weight: 600;
  text-decoration: none;
  transition: gap 0.3s ease;
}

.back-to-blog:hover {
  gap: 12px;
}

.back-to-blog svg {
  transition: transform 0.3s ease;
}

.back-to-blog:hover svg {
  transform: translateX(-4px);
}

/* === Loading/Empty/Error States === */

.blog-loading,
.blog-empty,
.blog-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  text-align: center;
  color: var(--color-black-55);
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-mint-green);
  border-top-color: var(--color-emerald);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.blog-empty svg,
.blog-error svg {
  margin-bottom: 24px;
  color: var(--color-black-30);
}

.blog-empty h3,
.blog-error h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 12px;
}

.blog-empty p,
.blog-error p {
  font-size: 1.125rem;
  margin-bottom: 24px;
}

.retry-btn,
.btn-primary {
  padding: 12px 32px;
  background: var(--color-emerald);
  color: var(--color-white);
  border: none;
  border-radius: 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s ease;
}

.retry-btn:hover,
.btn-primary:hover {
  background: var(--color-ocean-green);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 114, 114, 0.3);
}

/* === Responsive === */

@media (max-width: 768px) {
  .blog-header {
    padding: 60px 20px 40px;
  }

  .blog-filters {
    padding: 0 20px 30px;
  }

  .filter-btn {
    padding: 8px 18px;
    font-size: 0.875rem;
  }

  .blog-posts {
    padding: 0 20px 60px;
    gap: 24px;
  }

  .blog-card-content {
    padding: 20px;
  }

  .blog-card-title {
    font-size: 1.25rem;
  }

  .post-cover-image {
    height: 240px;
  }

  .post-body {
    font-size: 1rem;
    padding: 0 20px 40px;
  }

  .post-body h2 {
    font-size: 1.5rem;
    margin: 36px 0 20px;
  }

  .post-body h3 {
    font-size: 1.25rem;
    margin: 28px 0 16px;
  }

  .code-block code {
    font-size: 0.875rem;
  }

  .post-footer {
    padding: 30px 20px;
  }

  .share-buttons {
    flex-direction: column;
  }

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