:root {
  --color-primary:     #2563eb;
  --color-primary-d:   #1d4ed8;
  --color-success:     #16a34a;
  --color-danger:      #dc2626;
  --color-warning:     #d97706;
  --color-info:        #0891b2;
  --color-bg:          #f1f5f9;
  --color-surface:     #ffffff;
  --color-border:      #e2e8f0;
  --color-text:        #1e293b;
  --color-text-muted:  #64748b;
  --color-sidebar:     #1e293b;
  --color-sidebar-h:   #334155;
  --color-bg-muted:    #f1f5f9;
  --radius:            6px;
  --radius-lg:         10px;
  --shadow:            0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-lg:         0 4px 16px rgba(0,0,0,.15);
  --transition:        .18s ease;
}

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

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg);
}

a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; font-size: inherit; }

/* Утилиты */
.hidden { display: none !important; }
.flex   { display: flex; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.flex-1 { flex: 1; }
.text-muted  { color: var(--color-text-muted); }
.text-danger { color: var(--color-danger); }
.text-success{ color: var(--color-success); }
.text-warning{ color: var(--color-warning); }
.text-right  { text-align: right; }
.mt-8  { margin-top:  8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8  { margin-bottom:  8px; }
.mb-16 { margin-bottom: 16px; }
.fw-600 { font-weight: 600; }
.fs-12  { font-size: 12px; }
.fs-13  { font-size: 13px; }

/* Карточки */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 20px;
}

/* Алерты */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  border: 1px solid transparent;
}
.alert-danger  { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.alert-warning { background: #fffbeb; color: #92400e; border-color: #fde68a; }
.alert-success { background: #f0fdf4; color: #166534; border-color: #bbf7d0; }
.alert-info    { background: #ecfeff; color: #155e75; border-color: #a5f3fc; }

/* Формы */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-weight: 600; margin-bottom: 5px; font-size: 13px; }
.form-control {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition);
}
.form-control:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.form-control::placeholder { color: var(--color-text-muted); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-hint { font-size: 12px; color: var(--color-text-muted); margin-top: 4px; }
.form-error { font-size: 12px; color: var(--color-danger); margin-top: 4px; }

select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 8px center; padding-right: 28px; }

/* Кнопки */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 13px;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:disabled { opacity: .5; pointer-events: none; }
.btn-primary   { background: var(--color-primary);  color: #fff; }
.btn-primary:hover { background: var(--color-primary-d); }
.btn-success   { background: var(--color-success); color: #fff; }
.btn-success:hover { filter: brightness(1.08); }
.btn-danger    { background: var(--color-danger);  color: #fff; }
.btn-danger:hover  { filter: brightness(1.08); }
.btn-outline   { background: transparent; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-outline:hover { background: var(--color-bg); }
.btn-ghost     { background: transparent; color: var(--color-text-muted); padding: 6px 8px; }
.btn-ghost:hover { background: var(--color-bg); color: var(--color-text); }
.btn-sm        { padding: 4px 10px; font-size: 12px; }
.btn-block     { width: 100%; justify-content: center; }
.btn-icon      { padding: 6px; border-radius: var(--radius); }

/* Бейджи */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.badge-success  { background: #dcfce7; color: #15803d; }
.badge-danger   { background: #fee2e2; color: #b91c1c; }
.badge-warning  { background: #fef3c7; color: #b45309; }
.badge-info     { background: #e0f2fe; color: #0369a1; }
.badge-neutral  { background: #f1f5f9; color: #475569; }
.badge-admin    { background: #ede9fe; color: #7c3aed; }
.badge-operator { background: #e0f2fe; color: #0369a1; }

/* Таблицы */
.table-wrapper { overflow-x: auto; }
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.table th {
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  color: var(--color-text-muted);
  background: #f8fafc;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: #f8fafc; }
.table .actions { display: flex; gap: 4px; justify-content: flex-end; }

/* Пагинация */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
  margin-top: 16px;
}
.pagination .page-btn {
  padding: 5px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 13px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
}
.pagination .page-btn:hover { background: var(--color-bg); }
.pagination .page-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination .page-btn:disabled { opacity: .4; pointer-events: none; }
.pagination-info { font-size: 12px; color: var(--color-text-muted); margin: 0 8px; }

/* Поисковая строка */
.search-bar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.search-input { max-width: 280px; }

/* Страница входа */
.login-screen {
  position: fixed; inset: 0;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.login-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 360px;
  box-shadow: var(--shadow-lg);
}
.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo .logo-icon { font-size: 40px; }
.login-logo h1 { font-size: 22px; margin: 8px 0 4px; }
.login-logo p { color: var(--color-text-muted); font-size: 13px; }

/* Toast */
#toast-root {
  position: fixed;
  bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 8px;
  z-index: 9999;
}
.toast {
  padding: 12px 18px;
  border-radius: var(--radius);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toast-in .25s ease;
  min-width: 220px;
  max-width: 380px;
}
.toast-success { background: var(--color-success); }
.toast-error   { background: var(--color-danger); }
.toast-warn    { background: var(--color-warning); }
.toast-info    { background: var(--color-info); }
@keyframes toast-in { from { transform: translateX(60px); opacity: 0; } to { transform: none; opacity: 1; } }

/* Состояния загрузки / пусто */
.loading-state, .empty-state {
  padding: 48px;
  text-align: center;
  color: var(--color-text-muted);
}
.empty-state-icon { font-size: 40px; margin-bottom: 12px; }
.loading-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  margin: 0 auto 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Мини-бар-чарт (дашборд) */
.bar-chart { display: flex; align-items: flex-end; gap: 4px; height: 80px; }
.bar-chart-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; }
.bar-track { flex: 1; width: 100%; display: flex; flex-direction: column; justify-content: flex-end; }
.bar { width: 100%; border-radius: 3px 3px 0 0; min-height: 2px; transition: height .4s ease; }
.bar-in  { background: var(--color-success); opacity: .8; }
.bar-out { background: var(--color-danger);  opacity: .7; margin-top: 1px; }
.bar-label { font-size: 10px; color: var(--color-text-muted); white-space: nowrap; }

/* KPI карточки */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.kpi-card { display: flex; align-items: center; gap: 14px; }
.kpi-icon { font-size: 28px; flex-shrink: 0; }
.kpi-value { font-size: 24px; font-weight: 700; line-height: 1; }
.kpi-label { font-size: 12px; color: var(--color-text-muted); margin-top: 3px; }

/* Цветовые индикаторы остатков */
.stock-ok      { color: var(--color-success); font-weight: 600; }
.stock-low     { color: var(--color-warning); font-weight: 600; }
.stock-critical{ color: var(--color-danger);  font-weight: 600; }

/* Код API-ключа */
.api-key-display {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  background: #f8fafc;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px;
  word-break: break-all;
  user-select: all;
}

/* Чисто */
.divider { border: none; border-top: 1px solid var(--color-border); margin: 16px 0; }