/* ============================================================
   COMPONENTS — Cards, buttons, badges, sidebar, forms, etc.
   ============================================================ */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  line-height: 1;
}

.btn:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-text);
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-text);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: white;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* --- Category Badge --- */
.category-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25em 0.75em;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  background: color-mix(in srgb, var(--cat-color, var(--color-primary)) 12%, transparent);
  color: var(--cat-color, var(--color-primary));
  border: 1px solid color-mix(in srgb, var(--cat-color, var(--color-primary)) 25%, transparent);
  transition: background var(--transition-fast);
}

.category-badge:hover {
  background: color-mix(in srgb, var(--cat-color, var(--color-primary)) 20%, transparent);
  color: var(--cat-color, var(--color-primary));
}

/* --- Tags --- */
.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  display: inline-block;
  padding: 0.25em 0.75em;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--color-primary-pale);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* --- Post Cards --- */
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.post-card--featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: var(--radius-xl);
}

@media (max-width: 700px) {
  .post-card--featured {
    grid-template-columns: 1fr;
  }
}

.post-card__image-wrap {
  display: block;
  overflow: hidden;
  background: var(--color-bg-alt);
  aspect-ratio: 16/9;
}

.post-card--featured .post-card__image-wrap {
  aspect-ratio: unset;
  min-height: 280px;
}

.post-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.post-card:hover .post-card__image-wrap img {
  transform: scale(1.04);
}

.post-card__body {
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  flex: 1;
}

.post-card--featured .post-card__body {
  padding: var(--space-8) var(--space-8);
  justify-content: center;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}

.post-card__read-time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.post-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: 1.25;
  margin-bottom: var(--space-3);
  flex: 1;
}

.post-card__title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.post-card__title a:hover { color: var(--color-primary); }

.post-card__title--lg { font-size: var(--text-2xl); }

.post-card__excerpt {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.65;
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.post-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* --- Author Avatar --- */
.author-avatar {
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.author-avatar--sm { width: 28px; height: 28px; }
.author-avatar--md { width: 40px; height: 40px; }
.author-avatar--lg { width: 64px; height: 64px; }

/* --- Author Bio (sidebar/post footer) --- */
.author-bio {
  padding: var(--space-6);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.author-bio__header {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  margin-bottom: var(--space-4);
}

.author-bio__label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.author-bio__name {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-text);
  text-decoration: none;
  margin-bottom: var(--space-1);
}

.author-bio__name:hover { color: var(--color-primary); }

.author-bio__title {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.author-bio__bio {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  max-width: none;
}

.author-bio__social {
  display: flex;
  gap: var(--space-3);
}

.author-bio__social a {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.author-bio__social a:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* --- Related Posts --- */
.related-posts {
  margin-top: var(--space-6);
}

.related-posts__title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.related-posts__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.related-posts__item a {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.related-posts__item a:hover {
  background: var(--color-primary-pale);
}

.related-posts__cat {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cat-color, var(--color-primary));
}

.related-posts__post-title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
}

.related-posts__time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --- Sidebar --- */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: sticky;
  top: calc(64px + var(--space-6));
}

.sidebar-widget {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.sidebar-widget__title {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

/* --- Newsletter Signup --- */
.newsletter-widget {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.newsletter-widget .sidebar-widget__title {
  color: rgba(255,255,255,0.7);
}

.newsletter-widget__heading {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: white;
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.newsletter-widget__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-4);
  line-height: 1.6;
  max-width: none;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.newsletter-form input[type="email"] {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 2px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.1);
  color: white;
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast);
}

.newsletter-form input[type="email"]::placeholder {
  color: rgba(255,255,255,0.5);
}

.newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

.newsletter-form button {
  width: 100%;
  background: var(--color-accent);
  color: var(--color-text);
  font-weight: 700;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.newsletter-form button:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

.newsletter-privacy {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.5);
  line-height: 1.5;
  margin-top: var(--space-2);
}

/* --- Ad Slot Placeholder --- */
.ad-slot {
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
}

/* --- Category Grid (Homepage) --- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--transition);
}

.category-card:hover {
  border-color: var(--cat-color, var(--color-primary));
  background: color-mix(in srgb, var(--cat-color, var(--color-primary)) 6%, var(--color-bg));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
}

.category-card__icon {
  font-size: 2rem;
  line-height: 1;
}

.category-card__name {
  font-weight: 600;
  font-size: var(--text-sm);
}

.category-card__count {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --- Category Filters (Blog Index) --- */
.category-filters {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.category-filter {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.category-filter:hover,
.category-filter--active {
  background: color-mix(in srgb, var(--cat-color, var(--color-primary)) 12%, transparent);
  color: var(--cat-color, var(--color-primary));
  border-color: color-mix(in srgb, var(--cat-color, var(--color-primary)) 30%, transparent);
}

.category-filter--all { --cat-color: var(--color-primary); }

/* --- Hero Section --- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: white;
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  margin-bottom: var(--space-16);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  max-width: 700px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  line-height: 1.1;
  color: white;
  margin-bottom: var(--space-6);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.8);
  line-height: 1.6;
  max-width: 55ch;
  margin-bottom: var(--space-8);
}

.hero__ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* --- Section Headers --- */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.section-title {
  font-size: var(--text-2xl);
  color: var(--color-text);
}

.section-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
}

.section-link:hover { text-decoration: underline; }

/* --- Share Buttons --- */
.share-buttons {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-6);
}

.share-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-bg-alt);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.share-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
}

.share-btn--twitter:hover  { background: #1DA1F2; color: white; border-color: #1DA1F2; }
.share-btn--facebook:hover { background: #1877F2; color: white; border-color: #1877F2; }
.share-btn--linkedin:hover { background: #0A66C2; color: white; border-color: #0A66C2; }
.share-btn--copy:hover     { background: var(--color-success); color: white; border-color: var(--color-success); }

/* --- Theme Toggle --- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.theme-toggle__icon { font-size: 1.1rem; }

/* --- Search Bar --- */
.search-bar {
  display: flex;
  gap: 0;
  max-width: 560px;
}

.search-bar input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-border);
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast);
}

.search-bar input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.search-bar button {
  padding: var(--space-3) var(--space-5);
  background: var(--color-primary);
  color: white;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-weight: 600;
  font-size: var(--text-sm);
  transition: background var(--transition-fast);
}

.search-bar button:hover { background: var(--color-primary-light); }

.search-results {
  margin-top: var(--space-8);
}

.search-result-count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

/* --- Forms (Contact, Newsletter) --- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-textarea { resize: vertical; min-height: 140px; }

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --- Table --- */
.content-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  margin-block: var(--space-6);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.content-table th {
  background: var(--color-bg-alt);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  border-bottom: 2px solid var(--color-border);
}

.content-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.content-table tr:last-child td { border-bottom: none; }
.content-table tr:hover td { background: var(--color-bg-alt); }

/* --- Callout / Info Box --- */
.callout {
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-lg);
  border-left: 4px solid;
  margin-block: var(--space-6);
}

.callout--info {
  background: var(--color-primary-pale);
  border-color: var(--color-primary);
  color: var(--color-text);
}

.callout--warning {
  background: color-mix(in srgb, #F59E0B 10%, var(--color-bg));
  border-color: var(--color-accent);
}

.callout--tip {
  background: color-mix(in srgb, #059669 10%, var(--color-bg));
  border-color: var(--color-success);
}

.callout__title {
  font-weight: 700;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

/* --- Cookie Banner --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--color-primary);
  color: white;
  padding: var(--space-4) clamp(1rem, 5vw, 2.5rem);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
}

.cookie-banner p {
  flex: 1;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.85);
  margin: 0;
  max-width: none;
}

.cookie-banner a {
  color: var(--color-accent);
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}

.cookie-banner[hidden] { display: none; }

/* --- 404 Page --- */
.error-page {
  text-align: center;
  padding-block: var(--space-24);
}

.error-page__code {
  font-family: var(--font-heading);
  font-size: clamp(6rem, 20vw, 12rem);
  color: var(--color-primary-pale);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.error-page__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

.error-page__desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 44ch;
  margin-inline: auto;
}

/* --- Reading Progress Bar --- */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-accent);
  z-index: 999;
  transition: width 0.1s linear;
  width: 0%;
}