/* ============================================================
   Proxmox VPS Panel — UI
   Linear / Vercel-style: чистые формы, тонкие тени, Inter,
   один акцент, без рамок, много воздуха.
   Dashboard-стиль с боковой навигацией.
   ============================================================ */

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

:root {
  /* Базовые цвета — нейтральная светлая серая шкала */
  --bg: #fafafa;
  --surface: #ffffff;
  --surface-2: #f5f5f5;
  --surface-hover: #fafafa;

  /* Текст */
  --text: #0a0a0a;
  --text-muted: #6b7280;
  --text-dim: #9ca3af;

  /* Границы */
  --border: rgba(0, 0, 0, 0.06);
  --border-soft: rgba(0, 0, 0, 0.04);

  /* Один акцент */
  --accent: #0070f3;
  --accent-hover: #005ad1;
  --accent-soft: rgba(0, 112, 243, 0.08);
  --accent-text: #ffffff;

  /* Семантические цвета */
  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.08);
  --warn: #f59e0b;
  --warn-soft: rgba(245, 158, 11, 0.08);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.08);

  /* Тени */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -2px rgba(0, 0, 0, 0.04);

  /* Радиусы */
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover { color: var(--accent-hover); }

/* ============================================================
   Layout shell — горизонтальный: sidebar + main
   ============================================================ */

.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: row;
  align-items: stretch;
}

/* ============================================================
   Sidebar — боковая навигация
   ============================================================ */

.sidebar {
  width: 240px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  border-right: 1px solid var(--border-soft);
  height: 100vh;
  position: sticky;
  top: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 22px 20px;
  border-bottom: 1px solid var(--border-soft);
}

.sidebar-brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  box-shadow: 0 1px 3px rgba(0, 112, 243, 0.3);
}

.sidebar-brand-text {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--text);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  padding: 12px 12px;
  gap: 2px;
  flex: 1;
}

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s ease;
  text-decoration: none;
}

.sidebar-nav .nav-link:hover {
  background: var(--surface-2);
  color: var(--text);
}

.sidebar-nav .nav-link.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-nav .nav-link svg {
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 14px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--radius-sm);
}

.sidebar-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 13px;
  flex-shrink: 0;
}

.sidebar-user-info {
  min-width: 0;
  flex: 1;
}

.sidebar-user-email {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 11px;
  color: var(--text-muted);
}

.btn-logout {
  width: 100%;
  background: transparent;
  color: var(--text-muted);
  box-shadow: none;
  font-weight: 500;
}

.btn-logout:hover {
  background: var(--danger-soft);
  color: var(--danger);
  box-shadow: none;
}

/* ============================================================
   Main + container
   ============================================================ */

.main {
  flex: 1;
  min-width: 0;
  background: var(--bg);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 32px 80px;
  width: 100%;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  color: var(--text);
}

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

/* ============================================================
   Stats cards — виджеты на дашборде
   ============================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease;
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
}

.stat-card-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-success .stat-card-icon {
  background: var(--success-soft);
  color: var(--success);
}

.stat-muted .stat-card-icon {
  background: var(--surface-2);
  color: var(--text-dim);
}

.stat-danger .stat-card-icon {
  background: var(--danger-soft);
  color: var(--danger);
}

.stat-card-body { min-width: 0; }

.stat-card-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 500;
}

.stat-card-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-top: 2px;
}

/* ============================================================
   Buttons — мягкие тени, без рамок
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-xs);
  transition: all 0.15s ease;
  user-select: none;
}
.btn:hover {
  background: var(--surface-hover);
  box-shadow: var(--shadow-sm);
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: var(--shadow-md);
}

.btn-danger {
  background: var(--danger-soft);
  color: var(--danger);
}
.btn-danger:hover {
  background: var(--danger);
  color: white;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

/* ============================================================
   Cards — без рамок, только тени
   ============================================================ */

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.card + .card { margin-top: 16px; }

/* ============================================================
   Create form
   ============================================================ */

.create-form {
  margin-bottom: 24px;
}

.form-section {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.form-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 14px;
  margin-bottom: 18px;
}

.os-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.os-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
  font-family: inherit;
  color: var(--text);
}

.os-card:hover:not(.disabled) {
  background: var(--surface-2);
  border-color: var(--accent-dim);
}

.os-card.active {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.os-card.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.os-name {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
}

.os-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 1px;
}

.preset-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: stretch;
}

.preset-select {
  flex: 1;
  min-width: 220px;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.preset-select:hover { border-color: var(--accent-dim); }
.preset-select:focus { outline: none; border-color: var(--accent); }

.preset-buttons {
  display: flex;
  gap: 8px;
}

.preset-btn {
  min-width: 60px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  font-family: inherit;
  color: var(--text);
  transition: all 0.15s ease;
}

.preset-btn:hover:not(.disabled) {
  background: var(--surface-2);
  border-color: var(--accent-dim);
}

.preset-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.preset-btn.disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.preset-label {
  font-weight: 700;
  font-size: 15px;
}

.preset-status {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 1px;
}

.preset-btn.active .preset-status { color: var(--accent-text); }

.submit-btn {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
}

/* ============================================================
   Forms — старые стили (для совместимости)
   ============================================================ */

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}
.field label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}
.field input, .field select, .field textarea {
  background: var(--surface-2);
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  color: var(--text);
  font-size: 14px;
  transition: all 0.15s ease;
}
.field input:hover, .field select:hover {
  background: var(--surface-hover);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field input::placeholder { color: var(--text-dim); }

/* ============================================================
   Banners
   ============================================================ */

.error-box {
  background: var(--danger-soft);
  color: var(--danger);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}

.success-box {
  background: var(--success-soft);
  color: var(--success);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}

/* ============================================================
   Auth
   ============================================================ */

.auth-wrap {
  max-width: 400px;
  margin: 100px auto;
}
.auth-wrap .card { padding: 36px; }
.auth-wrap .page-title { text-align: center; }
.auth-wrap .page-sub { text-align: center; margin-bottom: 28px; }
.auth-wrap .btn { width: 100%; padding: 12px; font-size: 15px; }

/* ============================================================
   Instance grid
   ============================================================ */

.instance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 20px;
}

.instance-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
}
.instance-card:hover {
  box-shadow: var(--shadow-md);
}

/* ============================================================
   Статусы — цветовая кодировка
   ============================================================ */

.status-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
}
.dot.running {
  background: var(--success);
  box-shadow: 0 0 0 3px var(--success-soft);
}
.dot.stopped { background: var(--text-dim); }
.dot.creating {
  background: var(--warn);
  animation: pulse 1.4s infinite;
  box-shadow: 0 0 0 3px var(--warn-soft);
}
.dot.error {
  background: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-soft);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.instance-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.instance-name a {
  color: var(--text);
  transition: color 0.15s ease;
}
.instance-name a:hover { color: var(--accent); }

.instance-meta {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

.instance-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* ============================================================
   Empty state
   ============================================================ */

.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}

.empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.7; }
.empty-title { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.empty-sub { font-size: 14px; color: var(--text-muted); }

/* ============================================================
   Tabs
   ============================================================ */

.nav-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
}
.nav-tab {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}
.nav-tab:hover {
  background: var(--surface);
  color: var(--text);
}
.nav-tab.active {
  background: var(--accent);
  color: var(--accent-text);
}

/* ============================================================
   Tables
   ============================================================ */

table.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
table.data-table th, table.data-table td {
  text-align: left;
  padding: 14px 18px;
}
table.data-table th {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-soft);
}
table.data-table td {
  border-bottom: 1px solid var(--border-soft);
}
table.data-table tr:last-child td { border-bottom: none; }
table.data-table tr:hover td { background: var(--surface-2); }

/* ============================================================
   Inline stats
   ============================================================ */

.metric {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}
.metric-bar {
  width: 70px;
  height: 6px;
  background: var(--surface-2);
  border-radius: 3px;
  overflow: hidden;
}
.metric-bar > span {
  display: block;
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s ease;
}
.metric-bar > span.good { background: var(--success); }
.metric-bar > span.warn { background: var(--warn); }
.metric-bar > span.bad  { background: var(--danger); }

/* ============================================================
   Badges
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 100px;
  color: var(--text-muted);
  background: var(--surface-2);
}

/* ============================================================
   Mobile — sidebar превращается в top-bar
   ============================================================ */

@media (max-width: 768px) {
  .shell { flex-direction: column; }
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    flex-direction: row;
    border-right: none;
    border-bottom: 1px solid var(--border-soft);
    overflow-x: auto;
  }
  .sidebar-brand { display: none; }
  .sidebar-nav {
    flex-direction: row;
    padding: 8px;
    flex-shrink: 0;
  }
  .sidebar-footer {
    flex-direction: row;
    border-top: none;
    border-left: 1px solid var(--border-soft);
    flex-shrink: 0;
  }
  .sidebar-user { padding: 4px 8px; }
  .container { padding: 24px 20px 64px; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-title { font-size: 22px; }
}