@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@500;700;800&family=IBM+Plex+Mono:wght@400;600&family=IBM+Plex+Sans:wght@400;600&display=swap');

:root {
  --ink: #1C2321;
  --paper: #E7DEC4;
  --steel: #2F5068;
  --brass: #B27C3B;
  --safety: #F2B90D;
  --rivet: #8C8071;
  
  --font-display: 'Big Shoulders Display', cursive;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

/* Header & Brand Strip */
header {
  background-color: var(--ink);
  color: var(--safety);
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 4px solid var(--steel);
}

.logo-section h1 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.logo-section p {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--paper);
}

.cart-toggle {
  background-color: var(--safety);
  color: var(--ink);
  border: none;
  padding: 0.5rem 1rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 2px;
  box-shadow: 2px 2px 0 var(--brass);
  transition: transform 0.1s;
}

.cart-toggle:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* Hero Section */
.hero {
  background-color: var(--steel);
  color: var(--paper);
  padding: 3rem 5%;
  text-align: center;
  border-bottom: 4px solid var(--brass);
}

.hero h2 {
  font-family: var(--font-display);
  font-size: 3rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.hero p {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Catalogue Section */
.catalogue-section {
  padding: 3rem 5%;
  background-image: radial-gradient(var(--rivet) 1px, transparent 1px);
  background-size: 20px 20px; /* Pegboard motif */
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--ink);
  background-color: var(--paper);
  display: inline-block;
  padding: 0.5rem 2rem;
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
}

/* Category Filters */
.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.filter-btn {
  background-color: var(--paper);
  border: 2px solid var(--ink);
  color: var(--ink);
  padding: 0.4rem 1rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active, .filter-btn:hover {
  background-color: var(--ink);
  color: var(--paper);
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

/* Product Card - Rivet Cornered Spec Plate */
.product-card {
  background-color: var(--paper);
  border: 2px solid var(--ink);
  padding: 1.5rem;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: 4px 4px 0 rgba(28, 35, 33, 0.1);
}

/* Rivets */
.product-card::before, .product-card::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
}
.product-card::before {
  background: 
    radial-gradient(circle at 10px 10px, var(--rivet) 3px, transparent 4px),
    radial-gradient(circle at calc(100% - 10px) 10px, var(--rivet) 3px, transparent 4px);
}
.product-card::after {
  background: 
    radial-gradient(circle at 10px calc(100% - 10px), var(--rivet) 3px, transparent 4px),
    radial-gradient(circle at calc(100% - 10px) calc(100% - 10px), var(--rivet) 3px, transparent 4px);
}

.product-image-placeholder {
  width: 100%;
  height: 200px;
  background-color: #ddd;
  border: 1px solid var(--rivet);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--rivet);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.product-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.product-spec {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--steel);
  margin-bottom: 0.5rem;
  flex-grow: 1;
}

.product-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--rivet);
  margin-bottom: 1rem;
}

.add-to-cart {
  background-color: var(--brass);
  color: #fff;
  border: 2px solid var(--ink);
  padding: 0.5rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
  width: 100%;
}

.add-to-cart:hover {
  background-color: var(--ink);
  color: var(--brass);
}

/* Cart Drawer */
.cart-drawer {
  position: fixed;
  top: 0;
  right: -400px;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background-color: var(--paper);
  border-left: 4px solid var(--ink);
  box-shadow: -5px 0 15px rgba(0,0,0,0.2);
  transition: right 0.3s ease;
  z-index: 1000;
  display: flex;
  flex-direction: column;
}

.cart-drawer.open {
  right: 0;
}

.cart-header {
  background-color: var(--ink);
  color: var(--safety);
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-header h2 {
  font-family: var(--font-display);
  font-size: 2rem;
}

.close-cart {
  background: none;
  border: none;
  color: var(--paper);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

.cart-items {
  flex-grow: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

.cart-item {
  border-bottom: 1px dashed var(--rivet);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.cart-item h4 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.qty-btn {
  background-color: var(--steel);
  color: white;
  border: none;
  width: 24px;
  height: 24px;
  cursor: pointer;
  font-weight: bold;
}

.cart-footer {
  padding: 1.5rem;
  border-top: 2px solid var(--ink);
  background-color: rgba(231, 222, 196, 0.9);
}

.whatsapp-btn {
  display: block;
  width: 100%;
  background-color: #25D366; /* WhatsApp Green */
  color: white;
  text-align: center;
  padding: 1rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.5rem;
  border: 2px solid var(--ink);
  border-radius: 4px;
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 0.1s;
}

.whatsapp-btn:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}

/* Footer */
footer {
  background-color: var(--ink);
  color: var(--paper);
  padding: 3rem 5%;
  text-align: center;
  border-top: 4px solid var(--brass);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}