/* ==========================================================================
   ATELIER GOLDDRUCK - COMPONENTS STYLESHEET (LIGHT THEME)
   Header, Nav, Hero, TOC, FAQ Accordion, Category Cards, Footer
   ========================================================================== */

/* --- Header & Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 249, 246, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none !important;
}

.brand-logo img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--gold-primary);
  object-fit: cover;
}

.brand-logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: 0.05em;
}

.brand-logo-text span {
  color: var(--gold-primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--gold-primary);
  text-decoration: none;
}

.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem 0;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  list-style: none;
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item a {
  display: block;
  padding: 0.5rem 1.2rem;
  color: var(--text-main);
  font-size: 0.9rem;
}

.dropdown-item a:hover {
  background: rgba(184, 134, 11, 0.08);
  color: var(--gold-light);
  text-decoration: none;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--gold-primary);
  font-size: 1.6rem;
  cursor: pointer;
}

/* --- Hero Section --- */
.hero-section {
  padding: 5rem 0 3rem 0;
  background: radial-gradient(circle at 50% 20%, rgba(212, 175, 55, 0.14) 0%, rgba(250, 249, 246, 1) 75%);
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.hero-content {
  max-width: 850px;
  margin: 0 auto;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  margin-bottom: 3rem;
}

.hero-image-wrapper {
  margin-top: 2rem;
  position: relative;
}

/* --- Table of Contents Card --- */
.toc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem 2rem;
  margin: 2.5rem 0;
  box-shadow: 0 8px 25px rgba(0,0,0,0.04);
}

.toc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.toc-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--gold-light);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
}

.toc-list {
  list-style: none;
  padding: 1rem 0 0 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 1.5rem;
}

.toc-list li a {
  font-size: 0.95rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--transition-fast);
}

.toc-list li a:hover {
  color: var(--gold-primary);
  text-decoration: none;
}

/* --- FAQ Accordion --- */
.faq-section {
  margin: 4rem 0;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.accordion-item.active {
  border-color: var(--gold-primary);
}

.accordion-header {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.accordion-header:hover {
  color: var(--gold-primary);
}

.accordion-icon {
  font-size: 1.2rem;
  color: var(--gold-primary);
  transition: transform var(--transition-normal);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease;
  padding: 0 1.5rem;
  background: var(--bg-surface);
}

.accordion-item.active .accordion-content {
  padding: 1rem 1.5rem 1.5rem 1.5rem;
  max-height: 500px;
}

/* --- Category Cards --- */
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: 0 6px 20px rgba(0,0,0,0.04);
}

.category-card:hover {
  transform: translateY(-5px);
  border-color: var(--gold-primary);
  box-shadow: var(--gold-glow);
}

.category-icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  color: var(--gold-primary);
}

.category-title {
  font-size: 1.3rem;
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.category-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

/* --- Footer --- */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem 0;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--gold-light);
  margin-top: 0;
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--gold-primary);
  text-decoration: none;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Back to Top Floating Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gold-gradient);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  border: none;
  z-index: 99;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
}

/* Mobile Responsiveness */
@media (max-width: 900px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .mobile-toggle {
    display: block;
  }

  .toc-list {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}