/* ==========================================================================
   ALI FUNITURE — CORPORATE WORKSPACE E-COMMERCE SYSTEM
   Theme: Strictly Monochromatic Slate Grey / Corporate Graphite / Charcoal
   Approach: Mobile-First, Zero Overflow, Normal Image Proportions
   ========================================================================== */

:root {
  /* Strictly Monochromatic Slate & Graphite Palette */
  --slate-950: #090d16;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50:  #f8fafc;
  --white:     #ffffff;

  /* Typography & Spacing */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

  --container-max: 1240px;
  --header-height: 72px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 6px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 32px rgba(15, 23, 42, 0.14);
  --transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Box Sizing */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--white);
  color: var(--slate-900);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 28px;
  }
}

/* ==========================================================================
   TOP EXECUTIVE UTILITY BAR
   ========================================================================== */
.utility-bar {
  background-color: var(--slate-900);
  color: var(--slate-200);
  font-size: 0.78rem;
  border-bottom: 1px solid var(--slate-800);
  padding: 8px 0;
}

.utility-bar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.utility-notice {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--slate-300);
}

.utility-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--slate-400);
  display: inline-block;
}

.utility-contact {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.utility-email-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--white);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 2px 8px;
  background-color: var(--slate-800);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-sm);
}

.utility-email-link:hover {
  background-color: var(--slate-700);
}

.copy-email-btn {
  background: transparent;
  border: 1px solid var(--slate-700);
  color: var(--slate-300);
  padding: 2px 8px;
  font-size: 0.72rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.copy-email-btn:hover {
  background-color: var(--slate-800);
  color: var(--white);
}

/* ==========================================================================
   STICKY HEADER & MOBILE-FIRST NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--slate-200);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 12px;
}

/* Minimalist Executive Logo */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  background-color: var(--slate-900);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--slate-700);
  flex-shrink: 0;
}

.logo-text-group {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--slate-900);
  line-height: 1.1;
}

.logo-subtitle {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate-500);
  margin-top: 3px;
}

/* Desktop Navigation */
.desktop-nav {
  display: none;
}

@media (min-width: 900px) {
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 28px;
  }
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--slate-700);
  padding: 6px 0;
  position: relative;
  letter-spacing: 0.01em;
}

.nav-link:hover,
.nav-link.active {
  color: var(--slate-900);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--slate-900);
  transition: width var(--transition);
}

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

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-email-pill {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--slate-700);
  background-color: var(--slate-100);
  border: 1px solid var(--slate-200);
  padding: 7px 12px;
  border-radius: var(--radius-sm);
}

.header-email-pill:hover {
  background-color: var(--slate-200);
  color: var(--slate-900);
}

@media (min-width: 1080px) {
  .header-email-pill {
    display: inline-flex;
  }
}

.cart-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--slate-900);
  color: var(--white);
  border: 1px solid var(--slate-900);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition);
}

.cart-trigger-btn:hover {
  background-color: var(--slate-800);
}

.cart-count-badge {
  background-color: var(--white);
  color: var(--slate-900);
  font-size: 0.74rem;
  font-weight: 800;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Hamburger Button (Mobile-First) */
.mobile-menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--slate-100);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  color: var(--slate-900);
  cursor: pointer;
  transition: background-color var(--transition);
}

.mobile-menu-toggle:hover {
  background-color: var(--slate-200);
}

@media (min-width: 900px) {
  .mobile-menu-toggle {
    display: none;
  }
}

/* Mobile Navigation Drawer */
.mobile-nav-drawer {
  display: none;
  background-color: var(--white);
  border-bottom: 1px solid var(--slate-200);
  padding: 16px 0 20px;
  box-shadow: var(--shadow-md);
}

.mobile-nav-drawer.open {
  display: block;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 12px;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--slate-800);
  border-radius: var(--radius-sm);
}

.mobile-nav-link:hover {
  background-color: var(--slate-100);
  color: var(--slate-900);
}

.mobile-nav-contact-box {
  margin-top: 14px;
  padding: 12px;
  background-color: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
}

.mobile-nav-contact-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate-500);
  font-weight: 700;
  margin-bottom: 4px;
}

.mobile-nav-email {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--slate-900);
  word-break: break-all;
}

/* ==========================================================================
   INTRO-FIRST SECTION (CLEAN, TEXT-BASED INTRODUCTION — NO HERO BANNER)
   ========================================================================== */
.intro-section {
  background-color: var(--slate-50);
  border-bottom: 1px solid var(--slate-200);
  padding: 28px 0 24px;
}

@media (min-width: 768px) {
  .intro-section {
    padding: 36px 0 30px;
  }
}

.intro-wrapper {
  max-width: 920px;
}

.intro-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--slate-700);
  background-color: var(--white);
  border: 1px solid var(--slate-300);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.intro-heading {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 10px;
}

@media (min-width: 768px) {
  .intro-heading {
    font-size: 2.05rem;
  }
}

.intro-lead {
  font-size: 0.96rem;
  color: var(--slate-700);
  line-height: 1.65;
  margin-bottom: 18px;
}

@media (min-width: 768px) {
  .intro-lead {
    font-size: 1.04rem;
  }
}

.intro-metrics-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  padding-top: 14px;
  border-top: 1px solid var(--slate-200);
  font-size: 0.8rem;
  color: var(--slate-600);
  font-weight: 600;
}

.intro-metric-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.intro-metric-item strong {
  color: var(--slate-900);
}

/* ==========================================================================
   EXCLUSIVE 6-PRODUCT CATALOG SECTION
   ========================================================================== */
.catalog-section {
  padding: 28px 0 56px;
  background-color: var(--white);
}

.catalog-toolbar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--slate-200);
}

@media (min-width: 768px) {
  .catalog-toolbar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.catalog-title-group h2 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -0.01em;
}

.catalog-subtitle {
  font-size: 0.84rem;
  color: var(--slate-500);
  margin-top: 2px;
}

.catalog-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filter-tab-btn {
  background-color: var(--slate-100);
  color: var(--slate-700);
  border: 1px solid var(--slate-200);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-tab-btn:hover {
  background-color: var(--slate-200);
  color: var(--slate-900);
}

.filter-tab-btn.active {
  background-color: var(--slate-900);
  color: var(--white);
  border-color: var(--slate-900);
}

.sort-select {
  background-color: var(--white);
  border: 1px solid var(--slate-300);
  color: var(--slate-800);
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* Product Grid — Responsive 1 col (mobile), 2 col (tablet), 3 col (desktop) */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 600px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
  }
}

@media (min-width: 992px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

/* Product Card */
.product-card {
  background-color: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.product-card:hover {
  border-color: var(--slate-400);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* NORMAL, UNIFORM IMAGE CONTAINER (Strictly Controlled Height) */
.product-image-wrap {
  position: relative;
  width: 100%;
  height: 205px;
  background-color: var(--slate-100);
  overflow: hidden;
  border-bottom: 1px solid var(--slate-200);
}

@media (min-width: 768px) {
  .product-image-wrap {
    height: 220px;
  }
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.35s ease;
}

.product-card:hover .product-image {
  transform: scale(1.03);
}

.product-sku-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background-color: rgba(15, 23, 42, 0.88);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
}

.product-category-tag {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background-color: rgba(255, 255, 255, 0.94);
  color: var(--slate-800);
  border: 1px solid var(--slate-300);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

/* Product Card Body */
.product-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--slate-900);
  line-height: 1.35;
  margin-bottom: 6px;
}

.product-desc {
  font-size: 0.83rem;
  color: var(--slate-600);
  line-height: 1.5;
  margin-bottom: 12px;
}

.product-specs-mini {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.spec-pill {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--slate-700);
  background-color: var(--slate-100);
  border: 1px solid var(--slate-200);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.product-footer {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--slate-100);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.product-price {
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -0.01em;
}

.stock-status {
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--slate-600);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.stock-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--slate-800);
}

.product-actions {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
}

.btn-specs {
  background-color: var(--slate-100);
  color: var(--slate-800);
  border: 1px solid var(--slate-300);
  padding: 9px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-specs:hover {
  background-color: var(--slate-200);
  color: var(--slate-900);
}

.btn-add-cart {
  background-color: var(--slate-900);
  color: var(--white);
  border: 1px solid var(--slate-900);
  padding: 9px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background-color var(--transition);
}

.btn-add-cart:hover {
  background-color: var(--slate-800);
}

/* ==========================================================================
   TECHNICAL SPECIFICATIONS MATRIX SECTION
   ========================================================================== */
.specs-matrix-section {
  padding: 48px 0;
  background-color: var(--slate-50);
  border-top: 1px solid var(--slate-200);
  border-bottom: 1px solid var(--slate-200);
}

.section-header {
  margin-bottom: 24px;
}

.section-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--slate-600);
  margin-bottom: 4px;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--slate-900);
}

.section-desc {
  font-size: 0.88rem;
  color: var(--slate-600);
  margin-top: 4px;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  background-color: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  text-align: left;
}

.specs-table th,
.specs-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--slate-200);
}

.specs-table th {
  background-color: var(--slate-900);
  color: var(--white);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.specs-table tr:last-child td {
  border-bottom: none;
}

.specs-table tr:hover td {
  background-color: var(--slate-50);
}

/* ==========================================================================
   CORPORATE STANDARDS & QUALITY ASSURANCE SECTION
   ========================================================================== */
.standards-section {
  padding: 48px 0;
  background-color: var(--white);
  border-bottom: 1px solid var(--slate-200);
}

.standards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 768px) {
  .standards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }
}

.standard-card {
  padding: 22px;
  background-color: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
}

.standard-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--slate-500);
  margin-bottom: 8px;
}

.standard-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 8px;
}

.standard-text {
  font-size: 0.85rem;
  color: var(--slate-600);
  line-height: 1.6;
}

/* ==========================================================================
   WORKING CORPORATE INQUIRY & CONTACT SECTION (EMAIL ONLY)
   ========================================================================== */
.contact-section {
  padding: 52px 0;
  background-color: var(--slate-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 5fr 7fr;
    gap: 36px;
  }
}

.contact-info-panel {
  background-color: var(--slate-900);
  color: var(--white);
  padding: 28px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-panel-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.contact-panel-desc {
  font-size: 0.88rem;
  color: var(--slate-300);
  line-height: 1.65;
  margin-bottom: 22px;
}

.verified-email-card {
  background-color: var(--slate-800);
  border: 1px solid var(--slate-700);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.verified-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-400);
  font-weight: 700;
  margin-bottom: 6px;
}

.verified-email-address {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--white);
  word-break: break-all;
  margin-bottom: 10px;
}

.verified-note {
  font-size: 0.78rem;
  color: var(--slate-300);
}

.contact-assurance-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--slate-300);
  border-top: 1px solid var(--slate-800);
  padding-top: 18px;
}

/* Contact Form Box */
.contact-form-card {
  background-color: var(--white);
  border: 1px solid var(--slate-200);
  padding: 26px;
  border-radius: var(--radius-md);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .form-grid-two {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--slate-800);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 12px;
  background-color: var(--slate-50);
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--slate-900);
  transition: border-color var(--transition), background-color var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  background-color: var(--white);
  border-color: var(--slate-900);
}

.form-textarea {
  min-height: 110px;
  resize: vertical;
}

.btn-primary-full {
  width: 100%;
  background-color: var(--slate-900);
  color: var(--white);
  border: 1px solid var(--slate-900);
  padding: 12px 18px;
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition);
}

.btn-primary-full:hover {
  background-color: var(--slate-800);
}

.form-status-box {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  background-color: var(--slate-900);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  line-height: 1.5;
}

.form-status-box.visible {
  display: block;
}

/* ==========================================================================
   EXECUTIVE FOOTER (PERFECT MOBILE STACKING & ZERO DEAD LINKS)
   ========================================================================== */
.site-footer {
  background-color: var(--slate-950);
  color: var(--slate-300);
  padding: 48px 0 28px;
  margin-top: auto;
  border-top: 1px solid var(--slate-800);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--slate-800);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
  }
}

.footer-brand-desc {
  font-size: 0.84rem;
  color: var(--slate-400);
  margin-top: 12px;
  line-height: 1.65;
  max-width: 360px;
}

.footer-heading {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  margin-bottom: 14px;
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-link {
  font-size: 0.84rem;
  color: var(--slate-400);
  background: none;
  border: none;
  text-align: left;
  padding: 0;
  cursor: pointer;
  transition: color var(--transition);
}

.footer-link:hover {
  color: var(--white);
}

.footer-email-box {
  background-color: var(--slate-900);
  border: 1px solid var(--slate-800);
  padding: 14px;
  border-radius: var(--radius-sm);
}

.footer-email-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate-400);
  margin-bottom: 4px;
}

.footer-email-link {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--white);
  word-break: break-all;
}

.footer-bottom {
  padding-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--slate-500);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ==========================================================================
   SLIDE-OVER CART DRAWER & MODALS (SPECIFICATIONS, CHECKOUT, POLICIES)
   ========================================================================== */
.overlay-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(9, 13, 22, 0.65);
  backdrop-filter: blur(3px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.overlay-backdrop.open {
  display: flex;
}

/* Slide-Over Cart Panel */
.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 430px;
  background-color: var(--white);
  z-index: 250;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.cart-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  padding: 18px 20px;
  background-color: var(--slate-900);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-title {
  font-size: 1rem;
  font-weight: 700;
}

.close-icon-btn {
  background: var(--slate-800);
  color: var(--white);
  border: 1px solid var(--slate-700);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.drawer-body {
  padding: 18px 20px;
  overflow-y: auto;
  flex: 1;
}

.cart-empty-state {
  text-align: center;
  padding: 40px 16px;
  color: var(--slate-500);
  font-size: 0.88rem;
}

.cart-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--slate-200);
}

.cart-item-img {
  width: 64px;
  height: 52px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--slate-200);
}

.cart-item-title {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--slate-900);
  line-height: 1.3;
}

.cart-item-price {
  font-size: 0.8rem;
  color: var(--slate-600);
  font-weight: 600;
  margin-top: 2px;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
}

.qty-control-group {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
}

.qty-btn {
  width: 26px;
  height: 26px;
  background-color: var(--slate-100);
  border: none;
  cursor: pointer;
  font-weight: 700;
}

.qty-val {
  padding: 0 10px;
  font-size: 0.8rem;
  font-weight: 700;
}

.remove-item-btn {
  background: none;
  border: none;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--slate-500);
  cursor: pointer;
  text-decoration: underline;
}

.drawer-footer {
  padding: 18px 20px;
  background-color: var(--slate-50);
  border-top: 1px solid var(--slate-200);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.86rem;
  color: var(--slate-700);
  margin-bottom: 6px;
}

.cart-summary-total {
  display: flex;
  justify-content: space-between;
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--slate-900);
  padding-top: 8px;
  margin-bottom: 14px;
  border-top: 1px solid var(--slate-200);
}

/* Modal Card (Checkout, Specs, Policy) */
.modal-card {
  background-color: var(--white);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-300);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  padding: 16px 20px;
  background-color: var(--slate-900);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1rem;
  font-weight: 700;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  font-size: 0.88rem;
  color: var(--slate-700);
}

.receipt-box {
  background-color: var(--slate-50);
  border: 1px solid var(--slate-300);
  padding: 18px;
  border-radius: var(--radius-sm);
}

/* Toast Notification */
.toast-notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--slate-900);
  color: var(--white);
  border: 1px solid var(--slate-700);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 400;
  transform: translateY(120%);
  opacity: 0;
  transition: all 0.25s ease;
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}