:root {
  /* Colors */
  --iron-black: #0a0a0a;
  --iron-white: #ffffff;
  --iron-red: #e61e2a;
  --iron-red-hover: #c41924;
  --iron-gray-900: #121212;
  --iron-gray-800: #1a1a1a;
  --iron-gray-700: #2a2a2a;
  --iron-gray-400: #a0a0a0;
  --iron-gray-100: #f4f4f4;

  /* Typography */
  --font-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 48px;
  --space-2xl: 80px;

  /* Shadows & Borders */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.2);
  --border-radius: 4px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background-color: var(--iron-black);
  color: var(--iron-white);
  line-height: 1.5;
  overflow-x: hidden;
}

h1, h2, h3, h4, .display-text {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin: 0;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Layout Components */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 4rem);
}

section {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0;
}

main > :first-child {
  margin-top: 0;
}

/* Header/Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--iron-gray-800);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--iron-white);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-link:hover {
  color: var(--iron-red);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--iron-red);
  color: var(--iron-white);
}

.btn-primary:hover {
  background: var(--iron-red-hover);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--iron-white);
  border: 2px solid var(--iron-white);
}

.btn-outline:hover {
  background: var(--iron-white);
  color: var(--iron-black);
}

/* Hero Section */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?auto=format&fit=crop&q=80&w=2070') center/cover;
  padding-top: 80px;
}

.hero-content {
  max-width: 700px;
}

.hero-tagline {
  color: var(--iron-red);
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  display: block;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  line-height: 0.9;
  margin-bottom: var(--space-lg);
}

.hero p {
  font-size: 1.2rem;
  color: var(--iron-gray-400);
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.hero-btns {
  display: flex;
  gap: var(--space-md);
}

/* Featured Products / Grid */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-xl);
}

.section-title {
  font-size: 2.5rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.product-card {
  background: var(--iron-gray-900);
  border: 1px solid var(--iron-gray-800);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-10px);
  border-color: var(--iron-red);
}

.product-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--iron-red);
  color: white;
  padding: 4px 12px;
  font-weight: 800;
  font-size: 0.75rem;
  z-index: 2;
}

.product-img {
  width: 100%;
  aspect-ratio: 1/1;
  background: #111;
  position: relative;
}

.placeholder-image {
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, #1a1a1a, #2a2a2a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--iron-gray-700);
  font-weight: 900;
  font-size: 2rem;
  text-transform: uppercase;
}

.product-info {
  padding: var(--space-lg);
}

.product-cat {
  color: var(--iron-gray-400);
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 4px;
}

.product-name {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.product-price {
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--iron-white);
  display: flex;
  align-items: center;
  gap: 8px;
}

.price-old {
  text-decoration: line-through;
  color: var(--iron-gray-400);
  font-size: 0.9rem;
  font-weight: 400;
}

/* Trust Bar */
.trust-bar {
  background: var(--iron-gray-900);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--iron-gray-800);
  border-bottom: 1px solid var(--iron-gray-800);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  text-align: center;
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.trust-item svg {
  color: var(--iron-red);
}

.trust-item span {
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
}

/* Testimonials / Transformations */
.transformation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.transformation-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  background: var(--iron-gray-900);
  padding: 4px;
}

.before-after {
  position: relative;
}

.ba-label {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(0,0,0,0.7);
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 800;
}

/* Footer */
footer {
  background: var(--iron-gray-900);
  margin-top: var(--space-2xl);
  padding: var(--space-2xl) 0 var(--space-xl);
  border-top: 1px solid var(--iron-gray-800);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-col h4 {
  margin-bottom: var(--space-lg);
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--iron-gray-400);
}

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

.newsletter-form {
  display: flex;
  gap: 0;
  margin-top: var(--space-md);
}

.newsletter-input {
  background: var(--iron-gray-800);
  border: 1px solid var(--iron-gray-700);
  padding: 12px;
  color: white;
  flex: 1;
}

.newsletter-btn {
  background: var(--iron-red);
  border: none;
  padding: 0 20px;
  color: white;
  font-weight: 800;
  cursor: pointer;
}

.footer-bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--iron-gray-800);
  display: flex;
  justify-content: space-between;
  color: var(--iron-gray-400);
  font-size: 0.8rem;
}

/* Modal / Popup */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  display: none; /* Controlled by state in wireframe logic */
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.modal-content {
  background: var(--iron-gray-900);
  width: 90%;
  max-width: 500px;
  padding: var(--space-2xl);
  border: 2px solid var(--iron-red);
  position: relative;
  text-align: center;
}

/* Special UI Elements */
.accent-line {
  width: 60px;
  height: 4px;
  background: var(--iron-red);
  margin-bottom: var(--space-md);
}

.cart-count {
  background: var(--iron-red);
  color: white;
  font-size: 10px;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  position: absolute;
  top: -8px;
  right: -8px;
}

.cart-icon-wrapper {
  position: relative;
}

/* Admin Styles */
.admin-sidebar {
  width: 260px;
  background: var(--iron-gray-900);
  border-right: 1px solid var(--iron-gray-800);
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  padding: var(--space-lg);
}

.admin-main {
  margin-left: 260px;
  padding: var(--space-xl);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.stat-card {
  background: var(--iron-gray-900);
  border: 1px solid var(--iron-gray-800);
  padding: var(--space-lg);
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-lg);
}

.table th {
  text-align: left;
  padding: 12px;
  border-bottom: 2px solid var(--iron-gray-800);
  color: var(--iron-gray-400);
  text-transform: uppercase;
  font-size: 0.75rem;
}

.table td {
  padding: 16px 12px;
  border-bottom: 1px solid var(--iron-gray-800);
}

.badge {
  padding: 4px 8px;
  border-radius: 2px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}

.badge-success { background: #10b98120; color: #10b981; }
.badge-warning { background: #f59e0b20; color: #f59e0b; }

/* Product Page Specifics */
.product-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-2xl);
  margin-top: 120px;
}

.gallery-main {
  width: 100%;
  aspect-ratio: 4/5;
  background: var(--iron-gray-900);
}

.product-meta h1 {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.rating-stars {
  display: flex;
  gap: 4px;
  color: #ffc107;
  margin-bottom: var(--space-md);
}

.stock-status {
  color: #10b981;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-lg);
}

.options-group {
  margin-bottom: var(--space-lg);
}

.options-label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.choice-grid {
  display: flex;
  gap: 8px;
}

.choice-btn {
  border: 1px solid var(--iron-gray-700);
  background: transparent;
  color: white;
  padding: 8px 16px;
  cursor: pointer;
}

.choice-btn.active {
  border-color: var(--iron-red);
  background: var(--iron-red);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .transformation-grid { grid-template-columns: 1fr; }
  .product-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 3.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .transformation-card { grid-template-columns: 1fr 1fr; }
}