/* ============================================
   LF Groups — Component Styles
   ============================================ */

/* --- HEADER / NAVIGATION --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-4) 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition-smooth),
              box-shadow var(--transition-smooth),
              padding var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.08);
  padding: var(--space-3) 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-primary);
  cursor: pointer;
  text-decoration: none;
}

.logo svg {
  flex-shrink: 0;
}

.logo-img {
  height: 36px;
  width: auto;
  flex-shrink: 0;
  object-fit: contain;
}

.logo-text {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary-dark);
  white-space: nowrap;
}

.footer-logo-img {
  height: 28px;
  width: auto;
  flex-shrink: 0;
  object-fit: contain;
}

/* Desktop navigation */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-desktop a {
  color: var(--color-text-primary);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  transition: color var(--transition-interactive);
  cursor: pointer;
}

.nav-desktop a:hover {
  color: var(--color-accent);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: var(--space-6);
  padding-left: var(--space-6);
  border-left: 1px solid rgba(10, 22, 40, 0.15);
}

.lang-switch a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--transition-interactive);
  cursor: pointer;
}

.lang-switch a:hover,
.lang-switch a.active {
  color: var(--color-accent);
}

.lang-switch span {
  color: rgba(10, 22, 40, 0.25);
  font-size: var(--text-sm);
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary-dark);
  transition: transform var(--transition-smooth),
              opacity var(--transition-smooth);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu overlay */
.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 22, 40, 0.98);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.nav-mobile.open {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile a {
  color: var(--color-text-on-dark);
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: var(--text-2xl);
  font-weight: 600;
  transition: color var(--transition-interactive);
}

html[lang="zh-Hant"] .nav-mobile a {
  font-family: 'Noto Sans TC', sans-serif;
}

html[lang="zh-Hans"] .nav-mobile a {
  font-family: 'Noto Sans SC', sans-serif;
}

.nav-mobile a:hover {
  color: var(--color-accent);
}

.nav-mobile .lang-switch-mobile {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.nav-mobile .lang-switch-mobile a {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-base);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
}

.nav-mobile .lang-switch-mobile a:hover,
.nav-mobile .lang-switch-mobile a.active {
  color: var(--color-accent);
}


/* --- HERO SECTION --- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--color-primary-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 22, 40, 0.55) 0%,
    rgba(10, 22, 40, 0.5) 40%,
    rgba(10, 22, 40, 0.75) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: var(--space-20) var(--gutter);
}

.hero-content h1 {
  font-size: var(--text-5xl);
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}

html[lang="zh-Hant"] .hero-content h1,
html[lang="zh-Hans"] .hero-content h1 {
  letter-spacing: 0.05em;
}

.hero-content p {
  font-size: var(--text-lg);
  color: var(--color-text-on-dark-muted);
  max-width: 620px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 16px rgba(201, 168, 76, 0.3);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-on-dark);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}


/* --- SECTIONS --- */
.section {
  padding: var(--section-padding) 0;
}

.section-dark {
  background-color: var(--color-surface-dark);
  color: var(--color-text-on-dark);
}

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

.section-title {
  font-size: var(--text-3xl);
  text-align: center;
  margin-bottom: var(--space-3);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin: var(--space-4) auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: var(--space-4) auto var(--space-16);
}


/* --- ABOUT SECTION --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-text h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-6);
  position: relative;
}

.about-text h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin-top: var(--space-4);
  border-radius: 2px;
}

.about-text p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.8;
  margin-bottom: var(--space-8);
}

.about-badges {
  display: flex;
  gap: var(--space-6);
}

.badge {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
  border: 1px solid rgba(201, 168, 76, 0.2);
}

.badge-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-primary-dark);
}

.badge-text {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.3;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}


/* --- SERVICES SECTION --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.service-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border-top: 3px solid transparent;
  transition: transform var(--transition-interactive),
              box-shadow var(--transition-interactive),
              border-color var(--transition-interactive);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--color-accent);
}

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
  color: var(--color-accent);
}

.service-card h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

html[lang="zh-Hant"] .service-card h3 {
  font-family: 'Noto Sans TC', sans-serif;
}

html[lang="zh-Hans"] .service-card h3 {
  font-family: 'Noto Sans SC', sans-serif;
}

.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}


/* --- WHY CHOOSE US SECTION --- */
.why-section {
  position: relative;
  overflow: hidden;
}

.why-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.why-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.why-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 22, 40, 0.92) 0%,
    rgba(10, 22, 40, 0.88) 100%
  );
  z-index: 1;
}

.why-content {
  position: relative;
  z-index: 2;
}

.why-content .section-title {
  color: var(--color-text-on-dark);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-16);
}

.why-card {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-8);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.why-number {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  flex-shrink: 0;
}

html[lang="zh-Hant"] .why-number,
html[lang="zh-Hans"] .why-number {
  font-family: 'Cormorant Garamond', Georgia, serif;
}

.why-card-content h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-3);
  position: relative;
  padding-bottom: var(--space-3);
}

html[lang="zh-Hant"] .why-card-content h3 {
  font-family: 'Noto Sans TC', sans-serif;
}

html[lang="zh-Hans"] .why-card-content h3 {
  font-family: 'Noto Sans SC', sans-serif;
}

.why-card-content h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.why-card-content p {
  font-size: var(--text-sm);
  color: var(--color-text-on-dark-muted);
  line-height: 1.7;
}


/* --- CONTACT SECTION --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  max-width: 640px;
  margin: 0 auto;
}

.contact-info h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-6);
}

.contact-info h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin-top: var(--space-4);
  border-radius: 2px;
}

.contact-info > p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}

.contact-item-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.contact-item-text .label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.contact-item-text .value {
  font-size: var(--text-base);
  color: var(--color-text-primary);
}

.contact-item-text a.value {
  transition: color var(--transition-interactive);
  cursor: pointer;
}

.contact-item-text a.value:hover {
  color: var(--color-accent);
}

/* Contact form */
.contact-form-wrapper {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-10);
  box-shadow: var(--shadow-md);
}

.contact-form-wrapper h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-6);
}



.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-surface-light);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.btn-submit {
  width: 100%;
  padding: var(--space-4) var(--space-8);
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-weight: 600;
  font-size: var(--text-base);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}

.btn-submit:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 16px rgba(201, 168, 76, 0.3);
  transform: translateY(-1px);
}

.btn-submit:active {
  transform: translateY(0);
}


/* --- FOOTER --- */
.site-footer {
  background: var(--color-surface-dark);
  color: var(--color-text-on-dark);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-about .footer-logo {
  margin-bottom: var(--space-5);
}

.footer-about p {
  font-size: var(--text-sm);
  color: var(--color-text-on-dark-muted);
  line-height: 1.7;
  max-width: 360px;
}

.footer-about .entity-names {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
  margin-top: var(--space-4);
}

.footer-heading {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-6);
  color: var(--color-text-on-dark);
}

html[lang="zh-Hant"] .footer-heading {
  font-family: 'Noto Sans TC', sans-serif;
  text-transform: none;
}

html[lang="zh-Hans"] .footer-heading {
  font-family: 'Noto Sans SC', sans-serif;
  text-transform: none;
}

.footer-links a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-on-dark-muted);
  padding: var(--space-2) 0;
  transition: color var(--transition-interactive);
  cursor: pointer;
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-contact-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  margin-bottom: var(--space-4);
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

.footer-contact-item span,
.footer-contact-item a {
  font-size: var(--text-sm);
  color: var(--color-text-on-dark-muted);
  line-height: 1.5;
}

.footer-contact-item a {
  transition: color var(--transition-interactive);
  cursor: pointer;
}

.footer-contact-item a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--transition-interactive);
  cursor: pointer;
}

.footer-bottom a:hover {
  color: var(--color-accent);
}


/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  
  .about-image {
    order: -1;
  }
  
  .why-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .logo-img {
    height: 30px;
  }
  
  .logo-text {
    font-size: 1rem;
  }

  .nav-desktop {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-mobile {
    display: flex;
  }
  
  .hero-content h1 {
    font-size: var(--text-3xl);
  }
  
  .contact-grid {
    gap: var(--space-10);
  }
  
  .about-badges {
    flex-direction: column;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .service-card {
    padding: var(--space-6);
  }
  
  .why-card {
    flex-direction: column;
    gap: var(--space-4);
  }
}


/* ============================================
   NEWS & INSIGHT PAGES
   ============================================ */

.news-hero {
  position: relative;
  padding: var(--space-32) 0 var(--space-16);
  background: var(--color-primary-dark);
  text-align: center;
  overflow: hidden;
}

.news-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(201, 168, 76, 0.3);
}

.news-hero h1 {
  font-size: var(--text-4xl);
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-4);
}

.news-hero p {
  font-size: var(--text-lg);
  color: var(--color-text-on-dark-muted);
  max-width: 560px;
  margin: 0 auto;
}

.news-section {
  padding: var(--space-16) 0 var(--section-padding);
  background: var(--color-surface-light);
}

.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  max-width: 800px;
  margin: 0 auto;
}

.article-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-10);
  transition: box-shadow var(--transition-interactive);
}

.article-card:hover {
  box-shadow: var(--shadow-md);
}

.article-card-date {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.article-card h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

html[lang="zh-Hant"] .article-card h3 {
  font-family: 'Noto Sans TC', sans-serif;
}

html[lang="zh-Hans"] .article-card h3 {
  font-family: 'Noto Sans SC', sans-serif;
}

.article-card p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .news-hero {
    padding: var(--space-24) 0 var(--space-12);
  }

  .news-hero h1 {
    font-size: var(--text-3xl);
  }

  .article-card {
    padding: var(--space-6);
  }
}