/* ============================================================
   blog.css — IMPACT Blog styles
   ============================================================ */

/* ── Blog Hero ── */
.blog-hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  padding: 120px 0 60px;
  position: relative;
  overflow: hidden;
}
.blog-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.blog-hero-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}
.blog-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  color: var(--white);
  letter-spacing: -.03em;
  margin: 12px 0 16px;
}
.blog-hero p {
  font-size: 1rem;
  color: rgba(255,255,255,.65);
  line-height: 1.7;
}

/* ── Filters Bar ── */
.blog-filters-bar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
  padding: 16px 0;
  position: sticky;
  top: 68px;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.blog-filters-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.blog-filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.bfilt {
  font-size: .78rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1.5px solid var(--gray-200);
  color: var(--gray-700);
  background: var(--white);
  cursor: pointer;
  transition: var(--transition);
}
.bfilt:hover { border-color: var(--blue-light); color: var(--navy); }
.bfilt.active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

/* Search */
.blog-search-wrap {
  position: relative;
  flex-shrink: 0;
}
.blog-search {
  font-family: var(--font);
  font-size: .85rem;
  color: var(--gray-900);
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: 100px;
  padding: 7px 16px 7px 38px;
  width: 220px;
  outline: none;
  transition: var(--transition);
}
.blog-search:focus {
  border-color: var(--blue-light);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(78,159,212,.15);
}
.blog-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-600);
  pointer-events: none;
}

/* ── Main Layout ── */
.blog-main { padding: 60px 0 100px; background: var(--gray-50); }
.blog-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

/* ── Article Cards ── */
.blog-articles { display: flex; flex-direction: column; gap: 24px; }

.blog-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-light);
}
.blog-card.hidden { display: none; }

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.blog-cat-tag {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 100px;
}
.cat-kainotomia { background: rgba(200,160,0,.12); color: #7a6000; }
.cat-texnologia  { background: rgba(43,92,173,.1); color: var(--blue); }
.cat-epixeirim   { background: rgba(27,45,79,.1); color: var(--navy); }
.cat-ekpaideysi  { background: rgba(78,200,120,.1); color: #2a7a4a; }
.cat-ai          { background: rgba(150,50,200,.1); color: #6a1fa0; }

.blog-date {
  font-size: .78rem;
  color: var(--gray-600);
  margin-left: auto;
}

.blog-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 12px;
}
.blog-title-link {
  color: var(--navy);
  text-decoration: none;
  transition: color var(--transition);
}
.blog-title-link:hover { color: var(--blue); }

.blog-card-excerpt {
  font-size: .92rem;
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--blue);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  transition: gap var(--transition), color var(--transition);
  font-family: var(--font);
}
.blog-read-more:hover { color: var(--navy); gap: 10px; }
.brm-arrow { font-size: 1em; }

.blog-no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-600);
  font-size: 1rem;
}

/* ── Sidebar ── */
.blog-sidebar {
  position: sticky;
  top: 130px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-widget {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.sw-title {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gray-100);
}

/* Category list */
.sw-cats { display: flex; flex-direction: column; gap: 6px; }
.sw-cats li { list-style: none; }
.sw-cats a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  color: var(--gray-700);
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition);
}
.sw-cats a:hover { background: var(--blue-pale); color: var(--navy); }
.sw-cats span { font-size: 1em; }

/* About widget */
.sw-text { font-size: .85rem; color: var(--gray-700); line-height: 1.65; margin-bottom: 12px; }
.sw-link {
  font-size: .85rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
}
.sw-link:hover { color: var(--navy); }

/* Conference widget */
.sidebar-conf {
  background: var(--navy);
  border-color: var(--navy);
}
.sc-label {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 8px;
}
.sc-title {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 8px;
}
.sc-desc { font-size: .82rem; color: rgba(255,255,255,.6); }
.sidebar-conf .sw-title { color: rgba(255,255,255,.4); border-bottom-color: rgba(255,255,255,.1); }

/* YouTube sidebar */
.sw-yt-list { display: flex; flex-direction: column; gap: 10px; }
.sw-yt-item {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.sw-yt-item:hover { background: var(--gray-50); }
.sw-yt-thumb {
  width: 36px; height: 36px;
  background: #ff0000;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  color: white;
  flex-shrink: 0;
}
.sw-yt-item strong {
  display: block;
  font-size: .8rem;
  font-weight: 700;
  color: var(--navy);
}
.sw-yt-item span {
  font-size: .75rem;
  color: var(--gray-600);
}

/* ── Article Modal ── */
.article-modal-box {
  max-width: 860px !important;
}
.article-full {
  padding: 0 40px 48px;
}
.af-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 32px 0 20px;
  border-bottom: 2px solid var(--gray-100);
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.af-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.25;
  margin-bottom: 20px;
}
.af-body {
  font-size: 1rem;
  color: var(--gray-700);
  line-height: 1.85;
}
.af-body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--navy);
  margin: 32px 0 12px;
}
.af-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin: 24px 0 10px;
}
.af-body p { margin-bottom: 18px; }
.af-body strong { color: var(--navy); }
.af-body em { color: var(--gray-700); }
.af-body blockquote {
  border-left: 4px solid var(--gold);
  padding: 12px 20px;
  margin: 24px 0;
  background: rgba(200,160,0,.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--gray-700);
}
.af-body ul, .af-body ol {
  padding-left: 24px;
  margin-bottom: 18px;
}
.af-body li { margin-bottom: 8px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .blog-layout { grid-template-columns: 1fr; }
  .blog-sidebar { position: static; }
}
@media (max-width: 768px) {
  .blog-filters-bar .container { flex-direction: column; align-items: flex-start; }
  .blog-search { width: 100%; }
  .blog-search-wrap { width: 100%; }
  .blog-card { padding: 24px; }
  .article-full { padding: 0 20px 36px; }
}