/* Header Navigation */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(7, 7, 8, 0.7);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--steel-border);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4rem;
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

.main-header.scrolled {
  background: rgba(7, 7, 8, 0.95);
  border-bottom: 1px solid var(--steel-border-hover);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--font-family-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.logo span {
  color: var(--accent-color);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.9rem;
  color: var(--bg-primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width var(--transition-normal);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.burger-menu {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 30px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.burger-bar {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Premium Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--text-primary);
  border: 1px solid var(--accent-color);
  box-shadow: 0 4px 15px rgba(255, 95, 0, 0.2);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 6px 20px rgba(255, 95, 0, 0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--steel-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--steel-border-hover);
  transform: translateY(-2px);
}

/* Custom Interactive Cards */
.steel-card {
  background: var(--glass-bg);
  border: 1px solid var(--steel-border);
  border-radius: var(--border-radius-md);
  padding: 2rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
  overflow: hidden;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.steel-card:hover {
  border-color: var(--steel-border-hover);
  box-shadow: var(--glass-shadow);
  transform: translateY(-5px);
}

.social-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.social-link {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  border: 1px solid var(--steel-border);
  border-radius: var(--border-radius-sm);
  background: rgba(255, 255, 255, 0.03);
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.social-link:hover {
  color: var(--text-primary);
  border-color: var(--accent-color);
  background: rgba(255, 95, 0, 0.12);
  transform: translateY(-2px);
}

.social-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* Products Premium Grid Cards */
.product-card {
  background: var(--glass-bg);
  border: 1px solid var(--steel-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  position: relative;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.product-image-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  background-color: #121215;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-image-link {
  display: block;
  width: 100%;
  height: 100%;
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-image {
  transform: scale(1.1);
}

.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(7, 7, 8, 0.9) 0%, rgba(7, 7, 8, 0.2) 60%, rgba(7, 7, 8, 0) 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 1.5rem;
}

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

.card-actions {
  display: flex;
  gap: 1rem;
  width: 100%;
}

.card-btn {
  flex: 1;
  padding: 0.8rem 0;
  font-size: 0.8rem;
  text-align: center;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.product-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.product-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.product-price {
  font-size: 1rem;
  color: var(--accent-color);
  font-weight: 700;
}

.price-ask {
  color: var(--text-secondary);
  font-style: italic;
  font-size: 0.9rem;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 7, 8, 0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  padding: 2rem;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-container {
  background: var(--bg-secondary);
  border: 1px solid var(--steel-border);
  width: 100%;
  max-width: 900px;
  border-radius: var(--border-radius-md);
  position: relative;
  overflow: hidden;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-normal);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-overlay.active .modal-container {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--text-secondary);
  font-size: 1.5rem;
  background: none;
  border: none;
  z-index: 10;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  height: 100%;
  overflow-y: auto;
}

/* Inputs & Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--steel-border);
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* Footer structure */
.main-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--steel-border);
  padding: 5rem 4rem 2rem 4rem;
  margin-top: auto;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-primary);
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--accent-color);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-link:hover {
  color: var(--text-primary);
  padding-left: 5px;
}

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