/* ========================================
   Announcement Preview Page Styles
   ======================================== */

:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --pinned-gradient: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-600: #475569;
  --slate-500: #64748b;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Noto Sans Thai", sans-serif;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  color: var(--slate-800);
  -webkit-font-smoothing: antialiased;
}

/* ========================================
   Breadcrumb
   ======================================== */

.breadcrumb-nav {
  padding: 1.5rem 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #667eea;
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.back-link:hover {
  background: rgba(102, 126, 234, 0.1);
  transform: translateX(-5px);
}

/* ========================================
   Announcement Header
   ======================================== */

.announcement-header {
  background: var(--primary-gradient);
  padding: 3rem 0 2rem;
  position: relative;
  overflow: hidden;
}

.announcement-header::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 70%
  );
  border-radius: 50%;
}

.announcement-header.pinned {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.pinned-badge-wrapper {
  margin-bottom: 1.5rem;
  animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.pinned-badge {
  display: inline-block;
  /* ไล่เฉดจากเหลืองทองไปเหลืองส้ม */
  background: linear-gradient(135deg, #ffd700 0%, #ffb800 100%);
  color: #2c3e50;
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 700;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 4px 15px rgba(255, 184, 0, 0.4);
}
.announcement-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: white;
  margin-bottom: 1.5rem;
  line-height: 1.3;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  animation: slideUp 0.8s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.announcement-header-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  animation: slideUp 1s ease;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.95);
  font-size: 1rem;
  font-weight: 500;
}

.meta-item i {
  font-size: 1.1rem;
}

/* ========================================
   Content Wrapper
   ======================================== */

.announcement-wrapper {
  padding: 2rem 0 4rem;
  margin-top: -2rem;
  position: relative;
  z-index: 10;
}

/* ========================================
   Content Card
   ======================================== */

.announcement-content-card {
  background: white;
  border-radius: 20px;
  padding: 3rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.announcement-body {
  font-size: 1.15rem;
  line-height: 1.9;
  color: #334155;
  margin-bottom: 3rem;
}

.announcement-body p {
  margin-bottom: 1.5rem;
}

/* ========================================
   Actions Section
   ======================================== */

.announcement-actions {
  padding: 2rem;
  background: linear-gradient(
    to right,
    rgba(102, 126, 234, 0.05) 0%,
    transparent 100%
  );
  border-left: 4px solid #667eea;
  border-radius: 0 12px 12px 0;
  margin-bottom: 2rem;
}

.actions-title {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--slate-600);
  margin-bottom: 1.5rem;
}

.actions-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
}

.btn-download {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-download:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
  color: white;
}

.btn-external {
  background: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.btn-external:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(56, 189, 248, 0.4);
  color: white;
}

/* ========================================
   Footer Section
   ======================================== */

.announcement-footer {
  padding-top: 2rem;
  border-top: 2px solid #f1f5f9;
}

.btn-back-home {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #f1f5f9;
  color: var(--slate-600);
  padding: 0.75rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-back-home:hover {
  background: #e2e8f0;
  transform: translateX(-5px);
  color: var(--slate-700);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 991px) {
  .announcement-wrapper {
    padding: 1.5rem 0 3rem;
  }

  .announcement-content-card {
    padding: 2rem;
  }

  .announcement-header {
    padding: 2.5rem 0 1.5rem;
  }
}

@media (max-width: 768px) {
  .announcement-content-card {
    padding: 1.5rem;
  }

  .announcement-body {
    font-size: 1.05rem;
  }

  .announcement-header-meta {
    gap: 1rem;
    flex-direction: column;
  }

  .announcement-actions {
    padding: 1.5rem;
  }

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

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

@media (max-width: 576px) {
  .announcement-wrapper {
    padding: 1rem 0 2rem;
  }

  .breadcrumb-nav {
    padding: 1rem 0;
  }

  .announcement-header {
    padding: 2rem 0 1rem;
  }

  .announcement-title {
    font-size: 1.5rem;
  }

  .announcement-body {
    font-size: 1rem;
  }

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