/**
 * Wangklaikangwon Industrial and Community Education College (KKWIND)
 * Homepage Institutional Stylesheet
 * 
 * Version: 2.1.0
 * Dependent: assets/css/institutional-tokens.css
 * Standards: WCAG 2.1 AA Compliant, 44x44px Touch Targets, Zero Overflow-X
 * Viewports: Mobile (320px - 640px), Tablet (768px - 1024px), Desktop (1200px+)
 */

/* ==========================================================================
   Navbar & Login Button Overrides
   ========================================================================== */
.navbar .btn-login,
.navbar-nav .nav-link.btn-login,
.btn-login {
  background: var(--color-primary, #2b1b54) !important;
  background-image: none !important;
  color: #ffffff !important;
  border-radius: var(--radius-btn, 6px) !important;
  font-weight: 600 !important;
  font-size: 0.925rem !important;
  padding: 0.45rem 1.15rem !important;
  margin-left: 0.5rem !important;
  border: 1.5px solid var(--color-primary, #2b1b54) !important;
  box-shadow: var(--shadow-xs, 0 1px 3px rgba(0,0,0,0.08)) !important;
  white-space: nowrap !important;
  flex-shrink: 0 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.4rem !important;
  min-height: 40px !important;
  width: auto !important;
  text-decoration: none !important;
  line-height: 1.2 !important;
}

.navbar .btn-login:hover,
.navbar .btn-login:focus,
.btn-login:hover,
.btn-login:focus {
  background: var(--color-primary-hover, #3b2374) !important;
  border-color: var(--color-primary-hover, #3b2374) !important;
  color: #ffffff !important;
  transform: translateY(-1px) !important;
  box-shadow: var(--shadow-sm, 0 2px 6px rgba(0,0,0,0.12)) !important;
}

/* ==========================================================================
   Global Institutional Shape Overrides
   ลบทรงกลมมน (Pill / Bubble AI) ออกจากทุก component
   ========================================================================== */

/* ปุ่ม Bootstrap .btn ทุกประเภท */
.btn,
.btn-primary,
.btn-secondary,
.btn-outline-primary,
.btn-outline-secondary,
.btn-hero-primary,
.btn-hero-secondary,
button.btn,
a.btn {
  border-radius: 6px !important;
}

/* การ์ดทุกประเภท */
.card,
.news-card,
.system-card,
.inst-card,
.empty-state,
.empty-state-horizontal {
  border-radius: 8px !important;
}

/* Carousel / Banner */
.carousel,
.hero-carousel,
.carousel-inner {
  border-radius: 8px !important;
}

.carousel-item img,
.hero-carousel img {
  border-radius: 8px !important;
  object-fit: cover !important;
  width: 100% !important;
  height: 100% !important;
}

/* Dropdown */
.dropdown-menu {
  border-radius: 6px !important;
}

/* Badge, tag, pill */
.hero-badge,
.badge,
.category-badge {
  border-radius: 4px !important;
}

/* กล่อง meta ข้อมูล ใน hero */
.hero-meta-item {
  border-radius: 6px !important;
}

/* กรอบรูปบุคลากร / thumbnail */
.personnel-photo,
img.rounded,
img.rounded-3,
img.rounded-4,
.rounded,
.rounded-3,
.rounded-4,
.rounded-pill {
  border-radius: 8px !important;
}

/* News card images — force cover fill */
.news-card img,
.news-card .card-img-top {
  border-radius: 8px !important;
  object-fit: cover !important;
  width: 100% !important;
  height: 100% !important;
}

/* rounded-pill img override — ensure cover fill (no letterbox / distort) */
img.rounded-pill {
  border-radius: 8px !important;
  object-fit: cover !important;
}

/* navbar nav link hover */
.navbar-nav .nav-link {
  border-radius: 6px !important;
}
.page-shell {
  position: relative;
  background-color: var(--color-surface-subtle);
  background-image: 
    radial-gradient(circle at 10% 10%, rgba(43, 27, 84, 0.04), transparent 45%),
    radial-gradient(circle at 90% 20%, rgba(30, 41, 59, 0.03), transparent 50%),
    radial-gradient(circle at 50% 100%, rgba(43, 27, 84, 0.03), transparent 55%);
  padding-block: clamp(2rem, 4vw, 3.5rem);
  overflow-x: hidden;
  max-width: 100vw;
  min-height: 100vh;
}

/* ==========================================================================
   Hero Section (Dignified Institutional Canvas)
   ========================================================================== */
.hero {
  position: relative;
  min-height: auto !important;
  padding-top: clamp(2.5rem, 5vw, 4.5rem) !important;
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem) !important;
  margin-bottom: clamp(2rem, 3.5vw, 3.5rem);
  overflow-x: hidden;
  max-width: 100%;
  display: block !important;
}

.hero .container {
  position: relative;
  z-index: 2;
  max-width: 1320px;
  padding-left: clamp(1rem, 3vw, 2rem);
  padding-right: clamp(1rem, 3vw, 2rem);
}

.hero-surface {
  position: relative;
  background: linear-gradient(135deg, #1b1031 0%, #2b1b54 60%, #3b1d6e 100%);
  padding: clamp(2.5rem, 4.5vw, 4rem) clamp(2rem, 4vw, 3.5rem) !important;
  border-radius: var(--radius-lg, 8px) !important;
  overflow: hidden;
  box-shadow: var(--shadow-lg, 0 12px 35px -5px rgba(15, 23, 42, 0.35)) !important;
  border: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 0;
  margin-bottom: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px), 
    linear-gradient(0deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.hero-orb {
  display: none !important; /* Eliminate hyper-saturated AI neon glows */
}

.hero-content {
  color: #ffffff;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  letter-spacing: 0.05em;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
  color: #ffffff;
}

.hero-badge i {
  color: #fbbf24;
}

.hero-title {
  font-size: clamp(1.35rem, 1.2rem + 1.2vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 1.2rem 0 1rem;
  color: #ffffff;
  letter-spacing: -0.01em;
}

.hero-title-emphasis {
  color: #cbd5e1;
  display: inline;
  font-weight: 500;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 0.9rem + 0.25vw, 1.125rem);
  color: rgba(255, 255, 255, 0.9);
  max-width: 34rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.hero-meta {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.hero-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.45;
}

.hero-meta-item i {
  color: #fbbf24;
  font-size: 1.05rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.btn-hero-primary,
.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  min-height: 44px;
  min-width: 44px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition-base);
  user-select: none;
}

.btn-hero-primary {
  background: #ffffff;
  color: #1b1031 !important;
  border: 1.5px solid #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-hero-primary:hover {
  background: #f1f5f9;
  border-color: #f1f5f9;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.btn-hero-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff !important;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
}

.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}

.hero-stats-chip {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
}

/* ==========================================================================
   Hero Visual & Carousel Banner
   ========================================================================== */
.hero-visual {
  position: relative;
}

.hero-carousel {
  border-radius: var(--radius-lg, 8px) !important;
  overflow: hidden;
  background: rgba(15, 23, 42, 0.4);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.15);
  width: 100%;
}

.hero-carousel .carousel-item {
  padding: 0;
}

/* Hero banner link */
.hero-banner-link {
  display: block;
  position: relative;
  width: 100%;
  height: 100%;
  text-decoration: none !important;
  color: inherit !important;
  cursor: pointer;
}

.hero-banner-link:hover,
.hero-banner-link:focus-visible {
  text-decoration: none !important;
  color: inherit !important;
}

.hero-banner-link .hero-banner-frame {
  cursor: pointer;
}

.hero-banner-link:hover .hero-banner-image {
  transform: scale(1.02);
}

.hero-banner-link .carousel-caption h5 {
  transition: color 0.25s ease;
}

.hero-banner-link:hover .carousel-caption h5 {
  color: #fbbf24 !important;
}

.hero-banner-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1024 / 900;
  max-height: 520px;
  background: #1e1035;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--radius-lg, 8px) !important;
}

.hero-banner-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.hero-banner-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ffffff;
  background: #2b1b54;
  padding: 2rem;
}

.hero-carousel .carousel-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.85) 100%);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  text-align: left;
}

.hero-carousel .carousel-caption h5 {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
  color: #ffffff;
}

.hero-carousel .carousel-caption p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}

.hero-carousel .carousel-control-prev,
.hero-carousel .carousel-control-next {
  width: 44px;
  height: 44px;
  top: 50%;
  transform: translateY(-50%);
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.2);
  opacity: 0.8;
  transition: var(--transition-fast);
  margin: 0 8px;
}

.hero-carousel .carousel-control-prev:hover,
.hero-carousel .carousel-control-next:hover {
  background: var(--color-primary);
  opacity: 1;
}

.hero-carousel .carousel-indicators {
  margin-bottom: 0.75rem;
  gap: 0.5rem;
}

.hero-carousel .carousel-indicators [data-bs-target] {
  position: relative;
  width: 12px;
  height: 10px;
  background-color: rgba(255, 255, 255, 0.5);
  border: none;
  border-radius: 2px;
  transition: var(--transition-fast);
}

.hero-carousel .carousel-indicators [data-bs-target]::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 44px;
  min-height: 44px;
}

.hero-carousel .carousel-indicators [data-bs-target].active {
  width: 24px;
  background-color: #ffffff;
}

/* ==========================================================================
   Image Sizing & Object-Fit — Comprehensive Overrides
   ทุกรูปใน Card / Carousel ต้องพอดีกับกรอบ ไม่ยืด ไม่ขาว
   ========================================================================== */

/* Hero Carousel — กำหนดความสูงตามสัดส่วนแบนเนอร์จริง 1024x900 */
.hero-carousel {
  border-radius: var(--radius-lg, 8px) !important;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* hero-banner-frame รับ 1024/900 พอดีกับแบนเนอร์วิทยาลัย */
.hero-banner-frame {
  aspect-ratio: 1024 / 900;
  width: 100%;
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-lg, 8px) !important;
}

/* ภาพ carousel / banner */
.hero-banner-image,
.carousel-item img,
.hero-carousel img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-lg, 8px) !important;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* News card image container */
.news-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f1f5f9;
  border-radius: var(--radius-card, 8px) var(--radius-card, 8px) 0 0;
}

/* ภาพใน news-image */
.news-image img,
.news-card img,
.news-card .card-img-top {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

/* System icon image — contain เพื่อโลโก้ไม่ถูกตัด */
.system-icon img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  object-position: center;
}

/* Academic / Newsletter cover images */
.academic-cover img,
.newsletter-cover-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* ==========================================================================
   Section Layouts
   ========================================================================== */

.section {
  padding-block: clamp(2.5rem, 5vw, 4rem);
  position: relative;
}

.section-alt {
  background-color: var(--color-surface);
}

.section-dark {
  background: #1b1031;
  color: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 48rem;
  margin: 0 auto clamp(1.75rem, 3.5vw, 2.75rem);
}

.section-title {
  font-size: clamp(1.4rem, 1.2rem + 0.9vw, 2rem);
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.section-dark .section-title {
  color: #ffffff;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin: 0;
}

.section-dark .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

/* ==========================================================================
   Management Systems Grid (Quicklinks)
   ========================================================================== */
.system-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.system-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 1.25rem 1rem;
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: var(--color-text-primary);
  transition: var(--transition-base);
  position: relative;
  min-height: 44px;
}

.system-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(43, 27, 84, 0.3);
  color: var(--color-primary);
}

.system-card:focus-visible {
  outline: 3px solid rgba(43, 27, 84, 0.45);
  outline-offset: 2px;
}

.system-icon {
  width: 60px;
  height: 60px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 1.75rem;
  margin: 0 auto;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.system-icon img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 4px;
}

.system-card:hover .system-icon {
  background: var(--color-primary-tint);
  border-color: var(--color-primary-hover);
}

.system-title {
  font-weight: 600;
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.35;
  color: var(--color-text-primary);
}

.system-card:hover .system-title {
  color: var(--color-primary);
}

.system-description {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  line-height: 1.4;
}

/* Current Time Widget */
.current-time {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-btn);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  color: var(--color-text-primary);
  font-weight: 500;
  font-size: 0.925rem;
}

.current-time i {
  color: var(--color-primary);
}

/* ==========================================================================
   News Cards (News, Announcements, Procurement, To Be Number 1)
   ========================================================================== */
.news-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  height: 100%;
  position: relative;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(43, 27, 84, 0.25);
}

.news-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f1f5f9;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.news-image-link {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.news-card:hover .news-image img {
  transform: scale(1.04);
}

.news-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.55);
  opacity: 0;
  transition: var(--transition-fast);
  pointer-events: none;
}

.news-card:hover .news-overlay {
  opacity: 1;
  pointer-events: auto;
}

.news-overlay .btn {
  border-radius: var(--radius-btn);
  min-height: 44px;
  padding: 0.5rem 1.25rem;
  font-size: 0.9rem;
}

.news-content {
  padding: 1.25rem 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.news-title {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.45;
  font-weight: 600;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.news-title a {
  color: var(--color-text-primary);
  text-decoration: none;
  transition: var(--transition-fast);
  display: inline-block;
  padding: 2px 0;
}

.news-title a:hover {
  color: var(--color-primary);
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.825rem;
  color: var(--color-text-muted);
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border-subtle);
}

/* Dark section news cards */
.section-dark .news-card {
  background: #241445;
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: none;
}

.section-dark .news-card:hover {
  background: #2e1a58;
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.section-dark .news-title a {
  color: #ffffff;
}

.section-dark .news-title a:hover {
  color: #cbd5e1;
}

.section-dark .news-meta {
  color: rgba(255, 255, 255, 0.75);
  border-top-color: rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   Newsletter Cards
   ========================================================================== */
.newsletter-card-main {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  height: 100%;
  position: relative;
}

.newsletter-card-main:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(43, 27, 84, 0.25);
}

.newsletter-badge-featured {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--color-accent);
  color: #ffffff;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-badge);
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

.newsletter-cover-main {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-primary-dark);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.newsletter-cover-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.newsletter-card-main:hover .newsletter-cover-main img {
  transform: scale(1.04);
}

.newsletter-placeholder-main {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  padding: 1.5rem;
  background: linear-gradient(135deg, #1b1031 0%, #2b1b54 100%);
}

.newsletter-placeholder-main i {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  color: rgba(255, 255, 255, 0.85);
}

.newsletter-issue-text {
  font-size: 1.1rem;
  font-weight: 700;
}

.newsletter-issue-date {
  font-size: 0.875rem;
  opacity: 0.85;
}

.newsletter-overlay-main {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.55);
  opacity: 0;
  transition: var(--transition-fast);
}

.newsletter-card-main:hover .newsletter-overlay-main {
  opacity: 1;
}

.newsletter-content-main {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.newsletter-issue-badge {
  display: inline-block;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-badge);
  font-size: 0.75rem;
  font-weight: 600;
  align-self: flex-start;
  border: 1px solid rgba(43, 27, 84, 0.15);
}

.newsletter-title-main {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.newsletter-title-main a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.newsletter-title-main a:hover {
  color: var(--color-primary);
}

.newsletter-description-main {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0;
  flex: 1;
}

.newsletter-meta-main {
  display: flex;
  gap: 0.75rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--color-border-subtle);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.newsletter-actions-main {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.btn-newsletter-view,
.btn-newsletter-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-btn);
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.btn-newsletter-view {
  flex: 1;
  background: var(--color-primary);
  color: #ffffff !important;
}

.btn-newsletter-view:hover {
  background: var(--color-primary-hover);
  color: #ffffff !important;
}

.btn-newsletter-download {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-newsletter-download:hover {
  background: var(--color-primary-subtle);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ==========================================================================
   Academic Publications Cards
   ========================================================================== */
.academic-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  height: 100%;
  position: relative;
}

.academic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(43, 27, 84, 0.25);
}

.academic-badge-featured {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--color-accent);
  color: #ffffff;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-badge);
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

.academic-cover {
  position: relative;
  width: 100%;
  height: 190px;
  background: #f1f5f9;
  overflow: hidden;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.academic-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.academic-card:hover .academic-cover img {
  transform: scale(1.04);
}

.academic-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem;
}

.academic-year-badge {
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-badge);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.8rem;
}

.academic-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.55);
  opacity: 0;
  transition: var(--transition-fast);
}

.academic-card:hover .academic-overlay {
  opacity: 1;
}

.academic-content {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.academic-type-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-badge);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid;
  width: fit-content;
}

.academic-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
  margin: 0;
  color: var(--color-text-primary);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.academic-title a {
  color: inherit;
  text-decoration: none;
}

.academic-title a:hover {
  color: var(--color-primary);
}

.academic-authors,
.academic-category {
  font-size: 0.825rem;
  color: var(--color-text-secondary);
  margin: 0;
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  line-height: 1.4;
}

.academic-meta {
  display: flex;
  gap: 0.75rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--color-border-subtle);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: auto;
}

.academic-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.btn-academic-view,
.btn-academic-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-btn);
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.btn-academic-view {
  flex: 1;
  background: #0284c7;
  color: #ffffff !important;
}

.btn-academic-view:hover {
  background: #0369a1;
  color: #ffffff !important;
}

.btn-academic-download {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-academic-download:hover {
  background: var(--color-primary-subtle);
  border-color: #0284c7;
  color: #0284c7;
}

/* ==========================================================================
   Horizontal Document List
   ========================================================================== */
.documents-list-horizontal {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.document-card-horizontal {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 44px;
}

.document-card-horizontal:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(43, 27, 84, 0.25);
  transform: translateY(-2px);
}

.document-icon-wrapper-horizontal {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  position: relative;
}

.document-file-type {
  position: absolute;
  top: 3px;
  right: 3px;
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-badge);
  font-size: 0.7rem;
  font-weight: 700;
  color: #ffffff;
}

.document-info-horizontal {
  flex: 1;
  min-width: 0;
}

.document-category-tag {
  font-size: 0.8rem;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  border: 1px solid rgba(43, 27, 84, 0.15);
  border-radius: var(--radius-badge);
  padding: 0.2rem 0.55rem;
  margin-bottom: 0.35rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
}

.document-title-horizontal {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 0.25rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.document-desc-horizontal {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: 0 0 0.5rem;
  line-height: 1.4;
}

.document-meta-horizontal {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.document-actions-horizontal {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.btn-download-horizontal,
.btn-preview-horizontal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-btn);
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  transition: var(--transition-fast);
}

.btn-download-horizontal {
  background: var(--color-primary);
  color: #ffffff !important;
  border: 1px solid var(--color-primary);
}

.btn-download-horizontal:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-preview-horizontal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.btn-preview-horizontal:hover {
  background: var(--color-primary-subtle);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ==========================================================================
   Video Section
   ========================================================================== */
.video-wrapper {
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.video-wrapper:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.ratio iframe,
.ratio embed,
.ratio object,
.ratio video {
  border-radius: var(--radius-card);
}

/* ==========================================================================
   Contact Card & Form Area
   ========================================================================== */
.card.shadow-custom {
  border-radius: var(--radius-card);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.contact-info .d-flex {
  padding: 0.65rem 0;
  border-bottom: 1px dashed var(--color-border);
  transition: var(--transition-fast);
}

.contact-info .d-flex:last-child {
  border-bottom: none;
}

.contact-info .d-flex:hover {
  background: var(--color-primary-subtle);
  padding-left: 0.5rem;
  border-radius: var(--radius-xs);
}

.contact-info a {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0.2rem 0;
  word-break: break-all;
  overflow-wrap: anywhere;
}

.contact-info a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* ==========================================================================
   Mourning Modal Container
   ========================================================================== */
.mourning-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 2.5rem);
  background: rgba(0, 0, 0, 0.75);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.mourning-modal.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

body.mourning-modal-open {
  overflow: hidden;
}

.mourning-modal-card {
  position: relative;
  background: #111827;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-modal);
  padding: clamp(1rem, 3vw, 1.75rem);
  max-width: min(520px, 92vw);
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.mourning-modal-card img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
}

.mourning-close-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  border: none;
  border-radius: var(--radius-btn);
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 10;
}

.mourning-close-btn:hover,
.mourning-close-btn:focus {
  background: rgba(255, 255, 255, 0.35);
  outline: none;
}

/* ==========================================================================
   Smooth Fade-in Observer Animations
   ========================================================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Viewport Responsiveness & Zero Horizontal Overflow (R1)
   ========================================================================== */
@media (max-width: 1199.98px) {
  .hero-surface {
    padding: clamp(1.5rem, 3.5vw, 2.5rem);
  }
}

@media (max-width: 991.98px) {
  .hero {
    text-align: center;
  }

  .hero-surface {
    padding: clamp(1.5rem, 4vw, 2.25rem);
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats-chip {
    justify-content: center;
  }

  .hero-visual {
    width: 100%;
    margin-top: 1.5rem;
  }

  .document-card-horizontal {
    flex-wrap: wrap;
  }

  .document-actions-horizontal {
    width: 100%;
    margin-top: 0.5rem;
  }

  .btn-download-horizontal,
  .btn-preview-horizontal {
    flex: 1;
  }
}

@media (max-width: 767.98px) {
  .page-shell {
    padding-block: clamp(1.5rem, 5vw, 2.5rem);
  }

  .system-grid {
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
  }

  .system-card {
    padding: 1rem 0.75rem;
  }

  .document-card-horizontal {
    flex-direction: column;
    align-items: stretch;
    text-align: left;
  }

  .document-icon-wrapper-horizontal {
    margin: 0;
  }
}

@media (max-width: 575.98px) {
  .hero-surface {
    padding: clamp(1rem, 4vw, 1.5rem);
  }

  .hero-title {
    font-size: clamp(1.2rem, 1rem + 1.8vw, 1.5rem);
  }

  .btn-hero-primary,
  .btn-hero-secondary {
    width: 100%;
  }

  .system-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .system-card {
    padding: 0.85rem 0.5rem;
  }

  .system-icon {
    width: 50px;
    height: 50px;
  }

  .system-icon img {
    width: 40px;
    height: 40px;
  }

  .system-title {
    font-size: 0.825rem;
  }
}

@media (max-width: 360px) {
  .system-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Global Responsive — ใช้กับทุกหน้า (sub-pages ด้วย)
   ========================================================================== */

/* ป้องกัน Horizontal Scroll ทุก viewport */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

img, video, iframe, embed, object {
  max-width: 100%;
  height: auto;
}

/* Sub-page news/downloads container */
.news-container,
.downloads-container,
.page-container {
  max-width: 100%;
  overflow-x: hidden;
}

/* ตารางในหน้าข่าว / เนื้อหา — ให้ scroll แนวนอนได้แต่ไม่ทำให้หน้า overflow */
.table-responsive-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ปุ่ม pagination ใน News pages */
.pagination .page-link {
  border-radius: 4px !important;
  min-width: 36px;
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pagination .page-item.active .page-link {
  background-color: #2b1b54;
  border-color: #2b1b54;
}

/* News card ใน sub-pages */
.news-card,
.card {
  overflow: hidden;
  word-break: break-word;
}

/* Font display swap — ป้องกัน FOIT */
@font-face {
  font-display: swap;
}

/* ==========================================================================
   Sub-page Navbar (ใช้ navbar_modern.php เหมือนกัน)
   แก้สำหรับหน้าที่โหลด CSS ด้วย ../assets/css/
   ========================================================================== */
@media (max-width: 991.98px) {
  /* ป้องกันเมนูซ้อนทับเนื้อหา */
  .navbar {
    position: sticky;
    top: 0;
    z-index: 1030;
  }

  /* ปุ่ม Hero บน Mobile — เต็มความกว้าง */
  .hero-actions {
    flex-direction: column;
    gap: 0.5rem;
  }

  .btn-hero-primary,
  .btn-hero-secondary {
    width: 100% !important;
    justify-content: center;
  }
}

/* ==========================================================================
   Print Styles — ซ่อนองค์ประกอบที่ไม่จำเป็น
   ========================================================================== */
@media print {
  .navbar,
  .footer,
  .btn,
  #kkwind-live-badge,
  .hero-actions {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
  }
}