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

:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --border: #dde3ec;
  --text: #1a202c;
  --muted: #64748b;
  --accent: #f97316;
  --accent-dark: #ea580c;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --danger: #ef4444;
  --warn: #f59e0b;
  --radius: 8px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 60px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.nav-links { display: flex; gap: 1rem; align-items: center; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: opacity 0.15s, transform 0.1s;
}
.btn:hover { opacity: 0.88; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); opacity: 1; }
.btn-outline { background: transparent; border: 1px solid var(--blue); color: var(--blue); }
.btn-outline:hover { background: var(--blue); color: #fff; opacity: 1; }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-sm { padding: 0.3rem 0.75rem; font-size: 0.8rem; }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

/* Form elements */
input, select, textarea {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.95rem;
  padding: 0.6rem 0.9rem;
  width: 100%;
  outline: none;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 0.3rem; }

.form-group { margin-bottom: 1rem; }

/* Status badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-pending  { background: #fef3c7; color: #92400e; }
.badge-accepted { background: #dbeafe; color: var(--blue-dark); }
.badge-completed{ background: #dcfce7; color: #166534; }
.badge-declined { background: #fee2e2; color: #991b1b; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th { text-align: left; padding: 0.75rem 1rem; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--border); }
td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(37,99,235,0.04); }

/* Toast */
#toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 999;
  pointer-events: none;
}
#toast.show { opacity: 1; }
#toast.success { border-color: #16a34a; color: #16a34a; }
#toast.error   { border-color: var(--danger); color: var(--danger); }

/* Utility */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.text-muted { color: var(--muted); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.font-bold { font-weight: 700; }
.w-full { width: 100%; }

/* ── Platform badges ── */
.platform-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #fff;
  text-transform: uppercase;
  flex-shrink: 0;
}

/* ── Category tabs ── */
.category-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.cat-tab {
  padding: 0.4rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.cat-tab:hover { border-color: var(--accent); color: var(--text); }
.cat-tab.active { border-color: var(--accent); background: var(--accent); color: #fff; }

/* ── Item card updates ── */
.item-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}
.add-to-cart-btn {
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.45rem;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: var(--radius);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.add-to-cart-btn:hover { background: var(--accent); color: #fff; }
.add-to-cart-btn.in-cart { background: var(--accent); color: #fff; }

/* ── Cart button in nav ── */
.cart-btn {
  position: relative;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.3rem 0.75rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.15s;
  text-decoration: none;
}
.cart-btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.cart-count {
  background: var(--accent);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}
.cart-count.hidden { display: none; }

/* ── Cart drawer ── */
.cart-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 150;
}
.cart-overlay.open { display: block; }

.cart-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 390px;
  max-width: 100vw;
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 24px rgba(0,0,0,0.10);
  z-index: 151;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.25s ease;
}
.cart-drawer.open { transform: translateX(0); }

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.cart-header h2 { font-size: 1rem; font-weight: 700; }
.cart-close {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
  padding: 0.2rem;
}
.cart-close:hover { color: var(--text); }

.cart-body { flex: 1; overflow-y: auto; padding: 0.75rem 1.5rem; }

.cart-empty { text-align: center; padding: 3rem 1rem; color: var(--muted); }
.cart-empty .icon { font-size: 2.5rem; margin-bottom: 0.75rem; }

.cart-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}
.cart-item:last-child { border-bottom: none; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name {
  font-weight: 600;
  font-size: 0.88rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cart-item-meta { font-size: 0.75rem; color: var(--muted); margin-top: 0.15rem; }
.cart-item-price { font-weight: 700; color: var(--accent); font-size: 0.95rem; white-space: nowrap; }
.cart-item-remove {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0.1rem;
  flex-shrink: 0;
}
.cart-item-remove:hover { color: var(--danger); }

.cart-footer { border-top: 1px solid var(--border); padding: 1.1rem 1.5rem; }
.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
}
.cart-total-label { color: var(--muted); font-size: 0.9rem; }
.cart-total-amount { font-size: 1.5rem; font-weight: 800; color: var(--accent); }

/* ── Offers results section ── */
.offers-section { margin-top: 2rem; }
.offers-section-title { font-size: 1.2rem; font-weight: 800; margin-bottom: 1rem; }
.offer-result-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 0.6rem;
}
.offer-result-info { flex: 1; min-width: 0; }
.offer-result-name { font-weight: 700; font-size: 0.95rem; }
.offer-result-platform { font-size: 0.8rem; color: var(--muted); margin-top: 0.1rem; }
.offer-result-amount { font-size: 1.4rem; font-weight: 800; color: var(--accent); white-space: nowrap; }
.offer-result-fulfillment { font-size: 0.8rem; color: var(--muted); }
.offers-grand-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  background: rgba(249,115,22,0.04);
  margin-top: 0.5rem;
}
.offers-grand-label { font-weight: 700; font-size: 1rem; }
.offers-grand-amount { font-size: 1.75rem; font-weight: 800; color: var(--accent); }