/* ==========================================================
   EDITORIAL CART DRAWER
   Sharp corners, hairline borders, and serif accents.
   ========================================================== */

html.os-lock { overflow: hidden; }

:root {
  --os-surface: var(--surface-page, #ffffff);
  --os-ink: var(--ink-92, #0b1220);
  --os-ink-muted: var(--ink-58, rgba(11,18,32,0.6));
  --os-border: var(--ink-92, #0b1220);
  --os-accent: var(--accent-gold, #c5a059);
}

/* Backdrop - Minimalist dim */
.os-cart-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(11, 18, 32, 0.2);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease);
  z-index: 9998;
}
.os-cart-backdrop.is-open { opacity: 1; pointer-events: auto; }

/* Drawer Panel - The "Framed Art" Slide */
.os-cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100dvh;
  width: min(450px, 100vw);
  background: var(--os-surface);
  border-left: 1px solid var(--os-border);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 9999;
  display: flex;
  flex-direction: column;
}
.os-cart-drawer.is-open { transform: translateX(0); }

/* Header - Bold & Architectural */
.os-cart-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--os-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.os-cart-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.os-cart-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--os-ink);
  padding: 10px;
}

/* Items - The Stationery Style */
.os-cart-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}

.os-cart-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--space-md);
  padding-block: var(--space-md);
  border-bottom: 1px solid var(--ink-92); /* Hairline separator */
}

.os-cart-thumb {
  width: 80px;
  height: 80px;
  border: 1px solid var(--os-border);
  object-fit: cover;
  border-radius: 0; /* Sharp corners */
}

.os-cart-name {
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.os-cart-meta {
  font-size: 0.75rem;
  color: var(--os-ink-muted);
  text-transform: uppercase;
}

/* Controls - Sharp & Functional */
.os-qty {
  display: inline-flex;
  border: 1px solid var(--os-border);
  margin-top: 12px;
}

.os-qty-btn {
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 700;
}

.os-qty-val {
  width: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  border-left: 1px solid var(--os-border);
  border-right: 1px solid var(--os-border);
}

.os-remove {
  background: none;
  border: none;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--os-ink-muted);
  cursor: pointer;
  margin-left: 10px;
  text-decoration: underline;
}

/* Footer - Locked Stationery Box */
.os-cart-footer {
  padding: var(--space-lg);
  border-top: 1px solid var(--os-border);
  background: var(--surface-page-soft, #f8fafc);
}

.os-cart-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.os-cart-checkout {
  width: 100%;
  height: 60px;
  background: var(--os-ink);
  color: white;
  border: 1px solid var(--os-ink);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: all 0.3s var(--ease);
}

.os-cart-checkout:hover {
  background: var(--os-accent);
  border-color: var(--os-accent);
}

.os-cart-checkout:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.os-cart-trust {
  margin-top: 20px;
  font-size: 0.7rem;
  color: var(--os-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.6;
}
/* --- Footer - Locked Stationery Box --- */
.os-cart-footer {
  padding: var(--space-xl) var(--space-lg); /* Increased vertical breathing room */
  border-top: 1px solid var(--os-border);
  background: var(--os-surface);
  box-shadow: 0 -10px 30px rgba(0,0,0,0.03); /* Subtle lift from the body */
}

.os-cart-totals {
  margin-bottom: var(--space-lg);
}

.os-cart-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.95rem;
}

.os-cart-row strong {
  font-size: 1.25rem; /* Make subtotal prominent */
  font-family: var(--font-body);
}

/* --- Action Area --- */
.os-cart-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

.os-cart-checkout {
  width: 100%;
  height: 64px; /* Slightly taller for a more "hero" feel */
  background: var(--os-ink);
  color: #fff;
  border: 1px solid var(--os-ink);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  display: flex;
  align-items: center;
  justify-content: center;
}

.os-cart-checkout:hover:not(:disabled) {
  background: var(--os-accent);
  border-color: var(--os-accent);
}

/* Transform 'Continue Shopping' into a refined text link */
.os-cart-continue {
  background: none;
  border: none;
  color: var(--os-ink);
  text-transform: uppercase;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-decoration: none;
  cursor: pointer;
  padding: 10px;
  opacity: 0.6;
  transition: opacity 0.2s var(--ease);
}

.os-cart-continue:hover {
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* --- Trust Section --- */
.os-cart-trust {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px dashed var(--ink-92); /* Visual separation */
  font-size: 0.65rem;
  color: var(--os-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.8;
}

.os-cart-trust strong {
  color: var(--os-ink);
}