/* ============================================================
   NAO's FARM 管理ダッシュボード — Design System
   Premium Dark Theme with Gold Accents
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Colors — Dark Premium */
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d27;
  --bg-tertiary: #242836;
  --bg-card: #1e2230;
  --bg-hover: #2a2f3f;
  --bg-active: #323848;
  --border: #2d3348;
  --border-light: #3a4058;

  /* Gold Accent (NAO's FARM brand) */
  --gold: #BBA15A;
  --gold-light: #d4be7a;
  --gold-dark: #9a8444;
  --gold-bg: rgba(187, 161, 90, 0.1);
  --gold-border: rgba(187, 161, 90, 0.3);

  /* Status Colors */
  --green: #22c55e;
  --green-bg: rgba(34, 197, 94, 0.1);
  --blue: #3b82f6;
  --blue-bg: rgba(59, 130, 246, 0.1);
  --orange: #f59e0b;
  --orange-bg: rgba(245, 158, 11, 0.1);
  --red: #ef4444;
  --red-bg: rgba(239, 68, 68, 0.1);
  --purple: #a855f7;
  --purple-bg: rgba(168, 85, 247, 0.1);

  /* Text */
  --text-primary: #f0f1f5;
  --text-secondary: #9ca3b4;
  --text-muted: #6b7280;

  /* Typography */
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --sidebar-width: 260px;
  --header-height: 64px;

  /* Effects */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

/* --- Sidebar --- */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-brand {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.sidebar-brand h1 {
  font-size: 15px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.5px;
}

.sidebar-brand span {
  font-size: 11px;
  color: var(--text-muted);
  display: block;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: 24px;
}

.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0 12px;
  margin-bottom: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--gold-bg);
  color: var(--gold);
  border: 1px solid var(--gold-border);
}

.nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.nav-badge {
  margin-left: auto;
  background: var(--red);
  color: white;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 10px;
  min-width: 20px;
  text-align: center;
}

/* --- Main Content --- */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.content-header {
  height: var(--header-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
}

.content-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.content-body {
  padding: 32px;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--border-light);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* --- Stat Cards Grid --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon.gold { background: var(--gold-bg); color: var(--gold); }
.stat-icon.green { background: var(--green-bg); color: var(--green); }
.stat-icon.blue { background: var(--blue-bg); color: var(--blue); }
.stat-icon.purple { background: var(--purple-bg); color: var(--purple); }

.stat-icon svg { width: 22px; height: 22px; }

.stat-content { flex: 1; }

.stat-value {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 2px;
}

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

/* ============================================================
   Tables
   ============================================================ */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

thead {
  background: var(--bg-tertiary);
}

th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-hover); }

/* ============================================================
   Badges / Status
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.badge-paid, .badge-delivered { background: var(--green-bg); color: var(--green); }
.badge-paid::before, .badge-delivered::before { background: var(--green); }

.badge-pending { background: var(--orange-bg); color: var(--orange); }
.badge-pending::before { background: var(--orange); }

.badge-processing, .badge-shipped { background: var(--blue-bg); color: var(--blue); }
.badge-processing::before, .badge-shipped::before { background: var(--blue); }

.badge-cancelled, .badge-refunded, .badge-failed { background: var(--red-bg); color: var(--red); }
.badge-cancelled::before, .badge-refunded::before, .badge-failed::before { background: var(--red); }

.badge-label_created { background: var(--purple-bg); color: var(--purple); }
.badge-label_created::before { background: var(--purple); }

.badge-in_transit { background: var(--blue-bg); color: var(--blue); }
.badge-in_transit::before { background: var(--blue); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
  text-decoration: none;
}

.btn-primary {
  background: var(--gold);
  color: #1a1d27;
}

.btn-primary:hover { background: var(--gold-light); }

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

.btn-danger { background: var(--red-bg); color: var(--red); border: 1px solid rgba(239,68,68,.2); }
.btn-danger:hover { background: rgba(239,68,68,.2); }

.btn-sm { padding: 6px 14px; font-size: 13px; }

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-icon:hover { background: var(--bg-hover); color: var(--text-primary); }

/* ============================================================
   Forms
   ============================================================ */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input, .form-select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-sans);
  transition: border-color var(--transition);
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-bg);
}

.form-input::placeholder { color: var(--text-muted); }

/* ============================================================
   Toolbar
   ============================================================ */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 240px;
  padding: 10px 14px 10px 40px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
}

.search-input:focus {
  outline: none;
  border-color: var(--gold);
}

.filter-select {
  padding: 10px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
  min-width: 160px;
}

/* ============================================================
   Charts (simple bar representation)
   ============================================================ */
.chart-container {
  height: 200px;
  display: flex;
  align-items: flex-end;
  gap: 4px;
  padding-top: 20px;
}

.chart-bar {
  flex: 1;
  background: linear-gradient(to top, var(--gold-dark), var(--gold));
  border-radius: 4px 4px 0 0;
  min-height: 4px;
  transition: height 0.5s ease;
  position: relative;
  cursor: pointer;
}

.chart-bar:hover {
  background: linear-gradient(to top, var(--gold), var(--gold-light));
}

.chart-bar:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  white-space: nowrap;
  margin-bottom: 4px;
}

/* ============================================================
   Pagination
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.pagination button {
  padding: 8px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
}

.pagination button:hover:not(:disabled) { background: var(--bg-hover); color: var(--text-primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination button.active { background: var(--gold-bg); color: var(--gold); border-color: var(--gold-border); }

/* ============================================================
   Loading / Empty States
   ============================================================ */
.loading-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  color: var(--text-muted);
}

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

.empty-state svg { width: 48px; height: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state p { font-size: 15px; }

/* ============================================================
   Grid Helpers
   ============================================================ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }

/* ============================================================
   Toast Notifications
   ============================================================ */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  animation: toast-in 0.3s ease;
  max-width: 400px;
}

.toast-success { background: var(--green-bg); color: var(--green); border: 1px solid rgba(34,197,94,.2); }
.toast-error { background: var(--red-bg); color: var(--red); border: 1px solid rgba(239,68,68,.2); }

@keyframes toast-in {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .stats-grid { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .content-body { padding: 16px; }
}