/* =====================================================================
   RP Calling — Design System
   Angelehnt an RP IT Assets: Tailwind-äquivalentes Token-System,
   Inter-Schrift, weiße Sidebar, border-basierte Cards.
   ===================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-muted: #0f172a;
  --separator: #1e293b;
  --border: #334155;
  --border-strong: #475569;

  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;

  --accent: #2563eb;
  --accent-hover: #3b82f6;
  --accent-soft: #1e3a8a;
  --accent-soft-text: #93c5fd;
  --accent-soft-hover: #1e40af;

  --success: #22c55e;
  --success-text: #4ade80;
  --success-soft: #052e16;
  --success-border: #166534;

  --warning: #f59e0b;
  --warning-text: #fbbf24;
  --warning-soft: #1c1400;
  --warning-border: #78350f;

  --danger: #ef4444;
  --danger-text: #f87171;
  --danger-soft: #1c0707;
  --danger-border: #7f1d1d;

  --font-stack: 'Inter', ui-sans-serif, -apple-system, BlinkMacSystemFont,
    'Segoe UI Variable', 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;

  --sidebar-w: 240px;
}

/* ---------- 2. Resets ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-stack);
  background: var(--bg);
  color: var(--text);
  font-size: 0.875rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 600;
}

p {
  margin: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 100ms ease;
}

a:hover {
  color: var(--accent-hover);
}

button {
  font-family: inherit;
  cursor: pointer;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- 3. Layout ---------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

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

/* ---------- 4. Sidebar ---------- */
.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  height: 100vh;
  position: sticky;
  top: 0;
  background: var(--surface);
  border-right: 1px solid var(--separator);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Logo */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--separator);
  flex-shrink: 0;
  text-decoration: none;
}

.sidebar-logo:hover {
  text-decoration: none;
}

.sidebar-logo-mark {
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

/* Nav sections */
.sidebar-nav-wrap {
  flex: 1;
  overflow-y: auto;
  padding: 12px 8px;
}

.sidebar-section-label {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  padding: 6px 12px 4px;
  margin: 0;
}

.sidebar-section-label-spaced {
  padding-top: 20px;
}

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

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background 100ms ease, color 100ms ease;
}

.sidebar-item:hover {
  background: var(--surface-muted);
  color: var(--text);
}

.sidebar-item-active {
  background: var(--accent-soft);
  color: var(--accent-soft-text);
}

.sidebar-item-active:hover {
  background: var(--accent-soft-hover);
  color: var(--accent-soft-text);
}

.sidebar-item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: currentColor;
}

.sidebar-item-label {
  flex: 1;
}

/* User section at bottom */
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 8px;
  border-top: 1px solid var(--separator);
  flex-shrink: 0;
}

.sidebar-user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.sidebar-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-soft-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 700;
  flex-shrink: 0;
  user-select: none;
  letter-spacing: 0.02em;
}

.sidebar-user-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.sidebar-user-name {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-email {
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-logout {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: background 100ms ease, color 100ms ease;
}

.sidebar-logout:hover {
  background: var(--danger-soft);
  color: var(--danger-text);
}

.sidebar-version {
  text-align: center;
  font-size: 0.625rem;
  color: var(--text-tertiary);
  padding: 4px 0 8px;
}

@media (max-width: 768px) {
  .sidebar {
    width: 64px;
    flex: 0 0 64px;
  }

  .sidebar-logo {
    justify-content: center;
    padding: 16px 8px;
  }

  .sidebar-logo-text,
  .sidebar-section-label,
  .sidebar-item-label,
  .sidebar-user-meta,
  .sidebar-version {
    display: none;
  }

  .sidebar-nav-wrap {
    padding: 12px 4px;
  }

  .sidebar-item {
    justify-content: center;
    padding: 8px;
  }

  .sidebar-user {
    justify-content: center;
    padding: 10px 4px;
  }

  .sidebar-user-info {
    justify-content: center;
  }
}

/* ---------- 5. Page ---------- */
.page {
  padding: 20px 24px 40px;
}

/* ---------- 5b. Header search ---------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.search-box {
  position: relative;
  width: 380px;
  max-width: 100%;
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-muted);
  color: var(--text);
  font-size: 0.8125rem;
  font-family: var(--font-stack);
}

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

.search-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 420px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  padding: 6px;
  z-index: 40;
}

.search-group-label {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  padding: 8px 10px 4px;
}

.search-result-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 7px 10px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text);
}

.search-result-row:hover,
.search-result-row.search-result-active {
  background: var(--surface-muted);
  text-decoration: none;
}

.search-result-primary {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text);
}

.search-result-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.search-direction-in  { color: var(--success-text); }
.search-direction-out { color: var(--accent); }

.search-empty {
  padding: 14px 10px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-align: center;
}

/* ---------- 6. Dashboard Hero ---------- */
.dashboard-hero {
  margin-bottom: 32px;
}

.dashboard-eyebrow {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 8px;
}

.dashboard-title {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 8px;
  color: var(--text);
}

.dashboard-subtitle {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  max-width: 600px;
}

/* ---------- 7. Card ---------- */
.card {
  background: var(--surface);
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
}

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

.card-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.card-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.card-body {
  padding: 16px 20px 20px;
}

/* ---------- 8. Table ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table thead tr {
  border-bottom: 1px solid var(--separator);
  background: rgba(148, 163, 184, 0.08);
}

.data-table thead th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.data-table tbody tr {
  border-bottom: 1px solid var(--separator);
  transition: background 100ms ease;
}

.data-table tbody tr:hover {
  background: rgba(148, 163, 184, 0.08);
}

.data-table tbody tr:last-child {
  border-bottom: none;
}

.data-table td {
  padding: 12px 16px;
  color: var(--text-secondary);
}

.data-table td.td-primary {
  color: var(--text);
  white-space: nowrap;
  font-weight: 500;
}

/* ---------- 9. Profile Info ---------- */
.profile-info {
  margin: 0;
  display: grid;
  gap: 12px;
}

.profile-info > div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  align-items: baseline;
}

.profile-info dt {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.profile-info dd {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text);
}

/* ---------- 10. Login Screen ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(37, 99, 235, 0.15), transparent 60%),
    var(--bg);
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 40px 32px;
  text-align: center;
}

.login-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}

.login-brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.login-brand-text {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text);
}

.login-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  color: var(--text);
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 24px;
}

.login-button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 500;
  height: 40px;
  transition: background 100ms ease, border-color 100ms ease;
}

.login-button:hover {
  background: var(--surface-muted);
  border-color: var(--border-strong);
  color: var(--text);
}

/* ---------- 11. System Status ---------- */
.status-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--separator);
}

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

.status-row-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot-ok   { background: var(--success); box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15); }
.status-dot-warn { background: var(--warning); box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15); }
.status-dot-err  { background: var(--danger);  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15); }

.status-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.status-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.status-badge {
  flex-shrink: 0;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  border: 1px solid transparent;
}

.status-badge-ok   { background: var(--success-soft); color: var(--success-text); border-color: var(--success-border); }
.status-badge-warn { background: var(--warning-soft); color: var(--warning-text); border-color: var(--warning-border); }
.status-badge-err  { background: var(--danger-soft);  color: var(--danger-text);  border-color: var(--danger-border); }
.status-badge-neutral { background: var(--surface-muted); color: var(--text-secondary); border-color: var(--border); }

/* ---------- 12. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 7px;
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 100ms ease, border-color 100ms ease, color 100ms ease;
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
  font-family: var(--font-stack);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

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

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--surface-muted);
  color: var(--text);
}

.btn-danger {
  background: var(--danger-soft);
  color: var(--danger-text);
  border-color: var(--danger-border);
}

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

/* ---------- 14. Alert Banners ---------- */
.alert {
  font-size: .8125rem;
  border-radius: 6px;
  padding: .5rem .75rem;
}
.alert-ok  { color: var(--success-text); background: var(--success-soft); border: 1px solid var(--success-border, var(--border)); }
.alert-err { color: var(--danger-text);  background: var(--danger-soft);  border: 1px solid var(--danger-border); }

/* ---------- 15. Stat Grid ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

/* ---------- 15. Empty State ---------- */
.empty-state {
  padding: 24px 20px;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* ---------- 16. Dashboard Analytics ---------- */
.dash-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1.25rem;
}

.dash-period-tabs {
  display: flex;
  gap: 4px;
}

.dash-tab {
  padding: 5px 12px;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-family: var(--font-stack);
  transition: background 0.15s, color 0.15s;
}

.dash-tab.active {
  background: var(--accent);
  color: var(--surface);
  border-color: var(--accent);
}

.dash-tab:hover:not(.active) {
  background: var(--surface-muted);
}

.dash-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.dash-chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
}

.dash-chart-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 0.75rem;
}

.dash-kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.dash-kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: background 100ms ease, border-color 100ms ease;
}

.dash-kpi-card:hover {
  background: var(--surface-muted);
  border-color: var(--border-strong);
}

.dash-kpi-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.dash-delta {
  font-size: 0.6875rem;
  font-weight: 500;
}

.dash-delta.up     { color: var(--success-text); }
.dash-delta.down   { color: var(--danger-text);  }
.dash-delta.neutral { color: var(--text-tertiary); }

.dash-grid-3 {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 1rem;
}

.dash-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.dash-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 80px;
}

.dash-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  min-height: 3px;
}

.dash-bar:hover { opacity: 0.75; cursor: default; }

.dash-x-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-size: 0.625rem;
  color: var(--text-tertiary);
}

.dash-donut-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.25rem 0;
}

.dash-legend {
  font-size: 0.6875rem;
  line-height: 2;
}

.dash-legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}

.dash-trend-svg {
  width: 100%;
  height: 90px;
  overflow: visible;
  display: block;
}

.dash-top-rows {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.dash-top-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.6875rem;
  cursor: pointer;
  border-radius: 5px;
  padding: 2px 4px;
  margin: -2px -4px;
  transition: background 100ms ease;
}

.dash-top-row:hover {
  background: var(--surface-muted);
}

.dash-top-num {
  font-family: var(--font-mono);
  width: 130px;
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dash-top-bar-bg {
  flex: 1;
  background: var(--surface-muted);
  border-radius: 3px;
  height: 6px;
}

.dash-top-bar-fill {
  height: 6px;
  border-radius: 3px;
  background: var(--accent);
}

.dash-top-count {
  color: var(--text-secondary);
  width: 24px;
  text-align: right;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 900px) {
  .dash-grid-3   { grid-template-columns: 1fr; }
  .dash-grid-2   { grid-template-columns: 1fr; }
}

/* ---------- 17. Incoming Call Popup ---------- */
.incoming-call-popup {
  position: fixed;
  top: 76px;
  right: 24px;
  z-index: 200;
  width: 280px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.incoming-call-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.incoming-call-popup-timer {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.incoming-call-popup-number {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.incoming-call-popup-redirect {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 4px 0 0;
}