:root {
  --brand-red: #e2231a;
  --brand-red-dark: #a8160f;
  --red-gradient: linear-gradient(135deg, #ff4436 0%, #e2231a 45%, #a8160f 100%);
  --ink: #0c0c0f;
  --muted: rgba(12, 12, 15, 0.6);
  --border: rgba(12, 12, 15, 0.12);
  --bg: #f5f5f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

a {
  color: inherit;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 28px;
  background: #0c0c0f;
  color: #fff;
}

.admin-header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.admin-header .brand img {
  width: 32px;
  height: 32px;
}

.admin-header nav {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.admin-header a.link {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.admin-header a.link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.admin-main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

.admin-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.admin-title-row h1 {
  margin: 0;
  font-size: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background-color 0.15s ease;
}

.btn-primary {
  background: var(--red-gradient);
  color: #fff;
  box-shadow: 0 4px 14px rgba(226, 35, 26, 0.28);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(226, 35, 26, 0.35);
}

.btn-secondary {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--brand-red);
  color: var(--brand-red);
}

.btn-danger {
  background: #fff;
  color: #c81208;
  border: 1px solid rgba(200, 18, 8, 0.35);
}

.btn-danger:hover {
  background: #c81208;
  color: #fff;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 1px 2px rgba(12, 12, 15, 0.04);
}

.flash {
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.flash-success {
  background: rgba(37, 211, 102, 0.12);
  color: #1a8f4c;
  border: 1px solid rgba(37, 211, 102, 0.3);
}

.flash-error {
  background: rgba(226, 35, 26, 0.08);
  color: var(--brand-red-dark);
  border: 1px solid rgba(226, 35, 26, 0.25);
}

table.product-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table.product-table th {
  text-align: left;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

table.product-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

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

.product-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}

.product-cell img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 8px;
  background: #fafafa;
  border: 1px solid var(--border);
  padding: 4px;
}

.product-cell strong {
  display: block;
}

.product-cell span {
  font-size: 0.8rem;
  color: var(--muted);
}

.row-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.row-actions form {
  margin: 0;
  display: flex;
}

.row-actions .btn {
  padding: 7px 12px;
  font-size: 0.8rem;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}

/* Login page */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: #fff;
  border-radius: 18px;
  padding: 36px 32px;
  box-shadow: 0 24px 60px rgba(12, 12, 15, 0.12);
  text-align: center;
}

.login-card img {
  width: 56px;
  height: 56px;
  margin-bottom: 12px;
}

.login-card h1 {
  font-size: 1.2rem;
  margin: 0 0 4px;
}

.login-card p.sub {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 24px;
}

/* Forms */
.form-grid {
  display: grid;
  gap: 18px;
}

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

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}

.field label {
  font-size: 0.8rem;
  font-weight: 700;
}

.field .hint {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 400;
}

.field input[type="text"],
.field input[type="number"],
.field input[type="password"],
.field textarea,
.field select {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 13px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  width: 100%;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--brand-red);
  box-shadow: 0 0 0 3px rgba(226, 35, 26, 0.12);
}

.field textarea {
  resize: vertical;
  min-height: 90px;
}

.current-image {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.current-image img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  background: #fafafa;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
}

.photo-slots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}

.photo-slot {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}

.photo-slot .current-image {
  margin-bottom: 0;
}

.fitment-table {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.fitment-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 10px;
  padding: 10px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.fitment-row.tier-row {
  grid-template-columns: 1fr 1fr 1fr auto;
}

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

.fitment-row input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.85rem;
  font-family: inherit;
}

.fitment-remove {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  color: var(--brand-red-dark);
  font-weight: 700;
  flex-shrink: 0;
}

.fitment-remove:hover {
  background: rgba(226, 35, 26, 0.08);
}

.fitment-add {
  margin-top: 10px;
  background: none;
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 10px;
  width: 100%;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--muted);
}

.fitment-add:hover {
  border-color: var(--brand-red);
  color: var(--brand-red);
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.warning-box {
  background: rgba(226, 35, 26, 0.06);
  border: 1px solid rgba(226, 35, 26, 0.25);
  border-radius: 12px;
  padding: 16px;
  font-size: 0.88rem;
  margin-bottom: 20px;
}