/* ============================================
   Reusable Components
   ============================================ */

/* === Navigation === */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(20, 27, 45, 0.6);
  backdrop-filter: var(--blur-nav);
  -webkit-backdrop-filter: var(--blur-nav);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--dur-hover) var(--ease-hover);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.nav-brand .brand-mark {
  width: 28px;
  height: 28px;
  color: var(--color-amber);
  filter: drop-shadow(0 0 6px rgba(240, 165, 0, 0.3));
  transition: filter 0.3s ease;
}

.nav-brand:hover .brand-mark {
  filter: drop-shadow(0 0 12px rgba(240, 165, 0, 0.5));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color var(--dur-hover) var(--ease-hover);
}

.nav-links a:hover {
  color: var(--color-amber);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: var(--text-small);
  color: var(--color-text-muted);
  transition: color var(--dur-hover) var(--ease-hover);
}

.nav-dropdown-trigger:hover {
  color: var(--color-amber);
}

.nav-dropdown-trigger svg {
  width: 14px;
  height: 14px;
  transition: transform 0.3s var(--ease-reveal);
}

.nav-dropdown:hover .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 260px;
  background: var(--color-obsidian);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s var(--ease-reveal),
              visibility 0.25s var(--ease-reveal),
              transform 0.25s var(--ease-reveal);
  pointer-events: none;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.nav-dropdown-item {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  transition: background var(--dur-hover) var(--ease-hover);
}

.nav-dropdown-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.nav-dropdown-item-name {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--dur-hover) var(--ease-hover);
}

.nav-dropdown-item:hover .nav-dropdown-item-name,
.nav-dropdown-item.is-active .nav-dropdown-item-name {
  color: var(--color-amber);
}

.nav-links a.is-active {
  color: var(--color-amber);
}

.nav-dropdown-item-desc {
  display: block;
  font-size: var(--text-label);
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: 4px;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
}

.nav-toggle:hover svg {
  transform: scale(1.1);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-toggle {
    display: block;
  }
  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(20, 27, 45, 0.98);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    border-bottom: 1px solid var(--color-border);
    padding: 24px var(--container-padding);
    gap: 16px;
    animation: menuSlideIn 0.3s var(--ease-reveal);
  }
  .nav-dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    border: none;
    padding: 0 0 0 16px;
    background: transparent;
    min-width: auto;
    pointer-events: auto;
  }
}

/* === Glass Card === */

.glass-card {
  background: var(--color-smoke);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s var(--ease-hover),
              box-shadow 0.3s var(--ease-hover);
}

/* Subtle shimmer effect on hover */
.glass-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.03), transparent);
  transition: left 0.6s ease;
  pointer-events: none;
}

.glass-card:hover::after {
  left: 150%;
}

.glass-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--glow-card-hover);
}

/* === Solid Card === */

.card {
  background: var(--color-obsidian);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  position: relative;
  overflow: hidden;
  transition: border-color var(--dur-hover) var(--ease-hover),
              box-shadow var(--dur-hover) var(--ease-hover),
              transform var(--dur-hover) var(--ease-hover);
}

/* === Product Card === */

.product-card {
  --product-accent: var(--accent-essentia);
  --product-glow: var(--accent-essentia-glow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
}

/* Subtle top-edge glow on hover */
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--product-accent) 50%, transparent 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.product-card:hover::before {
  opacity: 1;
}

.product-card:hover {
  border-color: var(--product-accent);
  box-shadow: 0 0 30px var(--product-glow), 0 4px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(-3px);
}

.product-card[data-product="essentia"]  { --product-accent: var(--accent-essentia);  --product-glow: var(--accent-essentia-glow); }
.product-card[data-product="praesaga"]  { --product-accent: var(--accent-praesaga);  --product-glow: var(--accent-praesaga-glow); }
.product-card[data-product="lucerna"]   { --product-accent: var(--accent-lucerna);   --product-glow: var(--accent-lucerna-glow); }
.product-card[data-product="mensura"]   { --product-accent: var(--accent-mensura);   --product-glow: var(--accent-mensura-glow); }
.product-card[data-product="vigilia"]   { --product-accent: var(--accent-vigilia);   --product-glow: var(--accent-vigilia-glow); }
.product-card[data-product="verax"]     { --product-accent: var(--accent-verax);     --product-glow: var(--accent-verax-glow); }
.product-card[data-product="calibra"]   { --product-accent: var(--accent-calibra);   --product-glow: var(--accent-calibra-glow); }
.product-card[data-product="chat"]      { --product-accent: var(--accent-chat);      --product-glow: var(--accent-chat-glow); }

.product-card .product-icon {
  width: 40px;
  height: 40px;
  color: var(--product-accent);
  filter: drop-shadow(0 0 8px var(--product-glow));
  transition: filter 0.3s ease, transform 0.3s ease;
}

.product-card:hover .product-icon {
  filter: drop-shadow(0 0 14px var(--product-glow));
  transform: scale(1.05);
}

.product-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}

.product-card .product-tagline {
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--product-accent);
}

.product-card .product-desc {
  font-size: var(--text-small);
  color: var(--color-text-muted);
  line-height: 1.5;
  flex: 1;
}

.product-card .product-link {
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--color-amber);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  transition: gap 0.3s var(--ease-reveal),
              color 0.2s ease;
}

.product-card:hover .product-link {
  gap: 10px;
}

/* === Buttons === */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--btn-radius);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--text-small);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--dur-hover) var(--ease-hover);
  white-space: nowrap;
  position: relative;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn-primary {
  background: var(--color-amber);
  color: var(--color-void);
  box-shadow: var(--glow-btn);
}

.btn-primary:hover {
  box-shadow: var(--glow-btn-hover);
  transform: translateY(-1px);
  background: #FFB31A;
}

.btn-primary:active {
  box-shadow: var(--glow-btn);
  background: var(--color-amber);
}

.btn-ghost {
  background: transparent;
  color: var(--color-amber);
  border: 1px solid rgba(240, 165, 0, 0.3);
}

.btn-ghost:hover {
  border-color: var(--color-amber);
  background: rgba(240, 165, 0, 0.05);
  box-shadow: 0 0 20px rgba(240, 165, 0, 0.08);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.03);
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* === Section Header === */

.section-label {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-amber);
  margin-bottom: 16px;
  border-radius: 1px;
  box-shadow: 0 0 8px var(--color-amber-glow);
}

.section-tag {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-label);
  font-weight: 500;
  color: var(--color-amber);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}