/* MUKOTO Ops — Admin Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --sidebar-w: 260px;
  --topbar-h: 64px;
  --bg: #f1f5f9;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --sidebar-bg: #0f172a;
  --sidebar-text: #94a3b8;
  --sidebar-active: #1e293b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --accent: #f97316;
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 40px rgba(15, 23, 42, 0.08);
}

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

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

/* Layout */
.admin-layout { display: flex; min-height: 100vh; }

.admin-sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  overflow-y: auto;
  transition: transform 0.25s ease;
}

.admin-sidebar__brand {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.admin-sidebar__brand h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.admin-sidebar__brand h1 span { color: var(--accent); }

.admin-sidebar__brand p {
  margin: 4px 0 0;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.5;
}

.admin-nav { flex: 1; padding: 16px 12px; }

.admin-nav__label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(148,163,184,0.6);
  padding: 12px 12px 8px;
}

.admin-nav__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--sidebar-text);
  font-weight: 500;
  font-size: 13px;
  transition: all 0.15s;
  margin-bottom: 2px;
}

.admin-nav__link i { width: 18px; text-align: center; font-size: 14px; opacity: 0.85; }

.admin-nav__link:hover {
  background: rgba(255,255,255,0.05);
  color: #fff;
}

.admin-nav__link.active {
  background: var(--sidebar-active);
  color: #fff;
}

.admin-nav__badge {
  margin-left: auto;
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
  min-width: 20px;
  text-align: center;
}

.admin-sidebar__footer {
  padding: 16px 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.admin-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-topbar {
  height: var(--topbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.admin-topbar__toggle {
  display: none;
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
}

.admin-search {
  flex: 1;
  max-width: 420px;
  position: relative;
}

.admin-search i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

.admin-search input {
  width: 100%;
  padding: 10px 14px 10px 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  background: var(--bg);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.admin-search input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
  background: #fff;
}

.admin-topbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.admin-topbar__btn {
  position: relative;
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.admin-topbar__btn:hover { border-color: var(--primary); color: var(--primary); }

.admin-topbar__notify {
  position: absolute;
  top: -4px; right: -4px;
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px 6px 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
}

.admin-user__avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #6366f1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
}

.admin-user__info h4 { margin: 0; font-size: 13px; font-weight: 600; }
.admin-user__info p { margin: 0; font-size: 11px; color: var(--text-muted); }

.admin-content { flex: 1; padding: 28px 24px 48px; max-width: 1440px; width: 100%; }

/* Page header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.page-header h1 {
  margin: 0 0 4px;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card + .card { margin-top: 20px; }

.card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}

.card__header h2, .card__header h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.card__body { padding: 22px; }
.card__body--flush { padding: 0; }

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.stat-card__icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.stat-card__icon--blue { background: #dbeafe; color: #2563eb; }
.stat-card__icon--green { background: #d1fae5; color: #059669; }
.stat-card__icon--amber { background: #fef3c7; color: #d97706; }
.stat-card__icon--red { background: #fee2e2; color: #dc2626; }
.stat-card__icon--purple { background: #ede9fe; color: #7c3aed; }

.stat-card__value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 2px;
}

.stat-card__label {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

.stat-card__meta {
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--success);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  line-height: 1.2;
}

.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--primary-hover); color: #fff; }

.btn--secondary { background: #fff; color: var(--text); border-color: var(--border); }
.btn--secondary:hover { background: var(--bg); }

.btn--danger { background: #fff; color: var(--danger); border-color: #fecaca; }
.btn--danger:hover { background: #fef2f2; }

.btn--success { background: var(--success); color: #fff; }
.btn--success:hover { background: #047857; color: #fff; }

.btn--warning { background: #fff; color: var(--warning); border-color: #fde68a; }

.btn--sm { padding: 6px 12px; font-size: 12px; }
.btn--icon { width: 36px; height: 36px; padding: 0; }

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* Forms */
.form-group { margin-bottom: 18px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.form-control, .form-select {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

.form-check { display: flex; align-items: center; gap: 8px; }
.form-check input { width: 16px; height: 16px; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.filters-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 20px;
}

/* Tables */
.table-wrap { overflow-x: auto; }

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.table th {
  text-align: left;
  padding: 12px 22px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
}

.table td {
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.table tbody tr:hover { background: #f8fafc; }
.table tbody tr:last-child td { border-bottom: none; }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 999px;
  text-transform: capitalize;
}

.badge--success { background: #d1fae5; color: #065f46; }
.badge--warning { background: #fef3c7; color: #92400e; }
.badge--danger { background: #fee2e2; color: #991b1b; }
.badge--info { background: #dbeafe; color: #1e40af; }
.badge--neutral { background: #f1f5f9; color: #475569; }

/* Alerts */
.alert {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.alert--success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert--error, .alert--danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert--warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.alert--info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* Grid layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 340px; gap: 24px; }
.grid-2--wide { grid-template-columns: 2fr 1fr; }

@media (max-width: 1024px) {
  .grid-2, .grid-2--wide { grid-template-columns: 1fr; }
}

/* Tabs / filter pills */
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }

.tab {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  background: #fff;
  border: 1px solid var(--border);
  text-decoration: none;
  transition: all 0.15s;
}

.tab:hover { border-color: var(--primary); color: var(--primary); }
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state i { font-size: 40px; opacity: 0.3; margin-bottom: 12px; }

/* Product grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.product-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  transition: box-shadow 0.15s;
}

.product-card:hover { box-shadow: var(--shadow-lg); }

.product-card__img {
  height: 160px;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-card__img img { width: 100%; height: 100%; object-fit: cover; }

.product-card__body { padding: 16px; }
.product-card__title { font-weight: 600; margin: 0 0 4px; font-size: 14px; }
.product-card__meta { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }
.product-card__actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 20px;
  list-style: none;
}

.pagination a, .pagination span {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--text);
}

.pagination .active span { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Login */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.login-card__header {
  padding: 32px 32px 24px;
  text-align: center;
}

.login-card__header h1 { margin: 0; font-size: 22px; font-weight: 700; }
.login-card__header h1 span { color: var(--accent); }
.login-card__header p { margin: 8px 0 0; color: var(--text-muted); font-size: 13px; }

.login-card__body { padding: 0 32px 32px; }

/* Settings tabs */
.settings-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.settings-tabs a {
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.settings-tabs a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Responsive */
@media (max-width: 992px) {
  .admin-sidebar { transform: translateX(-100%); }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .admin-topbar__toggle { display: flex; }
  .admin-user__info { display: none; }
}

.text-muted { color: var(--text-muted); }
.text-right { text-align: right; }
.mt-4 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; }
.gap-2 { gap: 8px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.w-full { width: 100%; }