/* ==================================================
   KEYAN CORPORATION — B2B SHOPPING CART STYLESHEET
   Design Concept: B2B Industrial Procurement Cart
   Color Palette:
   - Deep Navy: #031F33 / #063B5C / #08334D
   - Industrial Orange: #FF7A18 / #E06305
   - Soft Background: #F8FAFC / #F1F5F9
   - Text: #0A1C28 / Muted: #64748B
   ================================================== */

:root {
  --cart-navy-darkest: #031F33;
  --cart-navy-deep: #063B5C;
  --cart-navy-mid: #0B4E74;
  --cart-orange: #FF7A18;
  --cart-orange-hover: #E06305;
  --cart-orange-glow: rgba(255, 122, 24, 0.25);

  --cart-bg-light: #F8FAFC;
  --cart-border-light: #E2E8F0;
  --cart-text-dark: #0A1C28;
  --cart-text-muted: #64748B;

  --font-heading: 'Space Grotesk', 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-card: 0 10px 30px rgba(6, 59, 92, 0.08);
}

.cart-page-body {
  background-color: #FFFFFF;
  color: var(--cart-text-dark);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* Hero Section */
.cart-hero-section {
  background: var(--cart-navy-darkest);
  color: #FFFFFF;
  padding: 3.5rem 0 3rem;
  position: relative;
}

.cart-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: #FFFFFF !important;
}

.cart-hero-sub {
  font-size: 1.05rem;
  color: #94A3B8;
}

/* 2-Column Cart Grid */
.cart-main-section {
  padding: 3.5rem 0 5rem;
  background: var(--cart-bg-light);
}

.cart-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: start;
}

/* Left Column: Cart Items List */
.cart-items-card {
  background: #FFFFFF;
  border: 1px solid var(--cart-border-light);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.cart-items-header {
  padding: 1.2rem 1.8rem;
  background: #FFFFFF;
  border-bottom: 1px solid var(--cart-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-items-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--cart-navy-darkest);
  text-transform: uppercase;
}

.cart-item-row {
  display: grid;
  grid-template-columns: 90px 1fr auto auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem 1.8rem;
  border-bottom: 1px solid var(--cart-border-light);
  transition: var(--transition-smooth);
}

.cart-item-row:last-child {
  border-bottom: none;
}

.cart-item-row:hover {
  background: rgba(248, 250, 252, 0.6);
}

.cart-item-img {
  width: 90px;
  height: 90px;
  object-fit: contain;
  background: var(--cart-bg-light);
  border: 1px solid var(--cart-border-light);
  border-radius: 8px;
  padding: 0.5rem;
}

.cart-item-info h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cart-navy-darkest);
  margin-bottom: 0.3rem;
}

.cart-item-info h4 a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.cart-item-info h4 a:hover {
  color: var(--cart-orange);
}

.cart-item-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cart-navy-mid);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.cart-item-price-unit {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--cart-navy-darkest);
  margin-top: 0.4rem;
}

/* Stepper */
.cart-item-stepper-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.cart-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--cart-border-light);
  border-radius: 6px;
  background: #FFFFFF;
  overflow: hidden;
}

.cart-stepper-btn {
  background: #FFFFFF;
  border: none;
  width: 32px;
  height: 32px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--cart-navy-deep);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.cart-stepper-btn:hover {
  background: var(--cart-bg-light);
  color: var(--cart-orange);
}

.cart-stepper-val {
  width: 38px;
  height: 32px;
  border: none;
  border-left: 1px solid var(--cart-border-light);
  border-right: 1px solid var(--cart-border-light);
  text-align: center;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--cart-navy-darkest);
}

.cart-item-line-total {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--cart-navy-darkest);
  text-align: right;
}

.cart-item-remove-btn {
  background: none;
  border: none;
  color: #EF4444;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.3rem;
  transition: color 0.2s ease;
}

.cart-item-remove-btn:hover {
  color: #DC2626;
}

/* Right Column: Summary Card */
.cart-summary-card {
  background: #FFFFFF;
  border: 1px solid var(--cart-border-light);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow-card);
  position: sticky;
  top: 100px;
}

.cart-summary-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--cart-navy-darkest);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--cart-border-light);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.cart-summary-row.grand-total {
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 2px dashed var(--cart-border-light);
  font-size: 1.15rem;
}

.cart-grand-amount {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--cart-navy-darkest);
}

.cart-promo-box {
  display: flex;
  gap: 0.5rem;
  margin: 1.5rem 0;
}

.cart-promo-input {
  flex: 1;
  background: var(--cart-bg-light);
  border: 1px solid var(--cart-border-light);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
}

.cart-promo-btn {
  background: var(--cart-navy-deep);
  color: #FFFFFF;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.cart-promo-btn:hover {
  background: var(--cart-navy-darkest);
}

.cart-btn-checkout {
  background: linear-gradient(135deg, var(--cart-orange) 0%, #D8630B 100%);
  color: #FFFFFF;
  border: none;
  padding: 1.1rem 1.5rem;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  margin-bottom: 0.8rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 8px 20px var(--cart-orange-glow);
}

.cart-btn-checkout:hover {
  background: linear-gradient(135deg, #FF8C33 0%, var(--cart-orange) 100%);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.cart-btn-rfq-outline {
  background: #FFFFFF;
  color: var(--cart-navy-deep);
  border: 2px solid var(--cart-navy-deep);
  padding: 0.85rem 1.5rem;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.cart-btn-rfq-outline:hover {
  border-color: var(--cart-orange);
  color: var(--cart-orange);
  background: rgba(255, 122, 24, 0.05);
}

@media (max-width: 992px) {
  .cart-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .cart-item-row {
    grid-template-columns: 70px 1fr;
    gap: 1rem;
  }

  .cart-item-stepper-wrap,
  .cart-item-line-total {
    grid-column: 2;
  }
}