/* ═══════════════════════════════════════════════════════════════════════════
   RP Design System  –  Unified Component Library
   Additive: existierende Stile werden nicht überschrieben.
   Alle Klassen tragen das Präfix .ds- um Konflikte zu vermeiden.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Design Tokens (Canonical Variables) ────────────────────────────────── */
:root {
  /* Brand */
  --ds-accent:        #1a3d6e;
  --ds-accent-light:  #2461b0;
  --ds-accent-hover:  #0f2847;
  --ds-accent-pale:   #e8f0fc;

  /* Status */
  --ds-danger:        #b22222;
  --ds-danger-hover:  #8b0000;
  --ds-danger-pale:   #fdecea;
  --ds-success:       #2e7d32;
  --ds-success-pale:  #e8f5e9;
  --ds-warning:       #c47800;
  --ds-warning-pale:  #fff8e1;
  --ds-info:          #0277bd;
  --ds-info-pale:     #e1f0fa;

  /* Surfaces */
  --ds-bg-app:        #eaecef;
  --ds-bg-sidebar:    #1e2a3a;
  --ds-bg-header:     #162032;
  --ds-bg-card:       #ffffff;
  --ds-bg-card-alt:   #f4f5f7;
  --ds-bg-input:      #ffffff;
  --ds-bg-modal:      #ffffff;
  --ds-bg-overlay:    rgba(0,0,0,0.55);
  --ds-bg-tbl-hd:     #2c3e55;
  --ds-bg-tbl-alt:    #f8f9fb;

  /* Text */
  --ds-text:          #1a1f2e;
  --ds-text-sub:      #4a5568;
  --ds-text-muted:    #7a8494;
  --ds-text-light:    #f0f2f5;

  /* Borders */
  --ds-border:        #c8cdd6;
  --ds-border-dark:   #9aa3b0;

  /* Radii */
  --ds-r-sm:  3px;
  --ds-r:     4px;
  --ds-r-md:  6px;
  --ds-r-lg:  10px;

  /* Shadows */
  --ds-shadow-sm:  0 1px 3px rgba(0,0,0,.12);
  --ds-shadow:     0 2px 8px rgba(0,0,0,.15);
  --ds-shadow-lg:  0 4px 20px rgba(0,0,0,.2);

  /* Typography */
  --ds-font:       'Segoe UI', Arial, sans-serif;
  --ds-font-mono:  'Consolas', 'Courier New', monospace;
  --ds-text-xs:    11px;
  --ds-text-sm:    12px;
  --ds-text-base:  13px;
  --ds-text-lg:    15px;
}

/* ── Utility: Text ──────────────────────────────────────────────────────── */
.ds-text-muted   { color: var(--ds-text-muted); }
.ds-text-sub     { color: var(--ds-text-sub); }
.ds-text-accent  { color: var(--ds-accent-light); }
.ds-text-danger  { color: var(--ds-danger); }
.ds-text-success { color: var(--ds-success); }
.ds-text-sm      { font-size: var(--ds-text-sm); }
.ds-text-xs      { font-size: var(--ds-text-xs); }
.ds-mono         { font-family: var(--ds-font-mono); }
.ds-ellipsis     { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.ds-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: none;
  border-radius: var(--ds-r);
  font-family: var(--ds-font);
  font-size: var(--ds-text-sm);
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, opacity .15s;
  text-decoration: none;
  line-height: 1.5;
}
.ds-btn:disabled { opacity: .5; cursor: not-allowed; }

.ds-btn-primary {
  background: var(--ds-accent);
  color: #fff;
}
.ds-btn-primary:hover:not(:disabled) { background: var(--ds-accent-hover); }

.ds-btn-secondary {
  background: var(--ds-bg-card-alt);
  color: var(--ds-text);
  border: 1px solid var(--ds-border);
}
.ds-btn-secondary:hover:not(:disabled) { background: var(--ds-border); }

.ds-btn-danger {
  background: var(--ds-danger);
  color: #fff;
}
.ds-btn-danger:hover:not(:disabled) { background: var(--ds-danger-hover); }

.ds-btn-success {
  background: var(--ds-success);
  color: #fff;
}
.ds-btn-success:hover:not(:disabled) { background: #1b5e20; }

.ds-btn-ghost {
  background: transparent;
  color: var(--ds-accent-light);
  border: 1px solid var(--ds-accent-light);
}
.ds-btn-ghost:hover:not(:disabled) { background: var(--ds-accent-pale); }

.ds-btn-sm { padding: 3px 8px; font-size: var(--ds-text-xs); }
.ds-btn-lg { padding: 8px 18px; font-size: var(--ds-text-base); }
.ds-btn-icon { padding: 5px 7px; }

/* ── Inputs ─────────────────────────────────────────────────────────────── */
.ds-input {
  display: block;
  width: 100%;
  padding: 5px 9px;
  background: var(--ds-bg-input);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r);
  font-family: var(--ds-font);
  font-size: var(--ds-text-sm);
  color: var(--ds-text);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.ds-input:focus {
  border-color: var(--ds-accent-light);
  box-shadow: 0 0 0 2px rgba(36,97,176,.2);
}
.ds-input::placeholder { color: var(--ds-text-muted); }
.ds-input-sm { padding: 3px 7px; font-size: var(--ds-text-xs); }

.ds-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%237a8494'%3E%3Cpath d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 9px center;
  padding-right: 26px;
}

.ds-textarea {
  resize: vertical;
  min-height: 80px;
}

/* ── Form Group ─────────────────────────────────────────────────────────── */
.ds-form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 10px;
}
.ds-label {
  font-size: var(--ds-text-xs);
  font-weight: 600;
  color: var(--ds-text-sub);
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* ── Search Bar ─────────────────────────────────────────────────────────── */
.ds-search-wrap {
  position: relative;
}
.ds-search-wrap i {
  position: absolute;
  left: 9px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ds-text-muted);
  font-size: 12px;
  pointer-events: none;
}
.ds-search-wrap .ds-input {
  padding-left: 28px;
}

/* ── Table ──────────────────────────────────────────────────────────────── */
.ds-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--ds-text-sm);
  color: var(--ds-text);
}
.ds-table th {
  background: var(--ds-bg-tbl-hd);
  color: #fff;
  font-size: var(--ds-text-xs);
  font-weight: 600;
  text-align: left;
  padding: 7px 10px;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.ds-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--ds-border);
  vertical-align: middle;
}
.ds-table tbody tr:nth-child(even) { background: var(--ds-bg-tbl-alt); }
.ds-table tbody tr:hover { background: var(--ds-accent-pale); }
.ds-table-sm th, .ds-table-sm td { padding: 4px 8px; }

/* ── Badge / Chip ───────────────────────────────────────────────────────── */
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 7px;
  border-radius: 20px;
  font-size: var(--ds-text-xs);
  font-weight: 600;
  white-space: nowrap;
}
.ds-badge-primary { background: var(--ds-accent-pale);   color: var(--ds-accent); }
.ds-badge-danger  { background: var(--ds-danger-pale);   color: var(--ds-danger); }
.ds-badge-success { background: var(--ds-success-pale);  color: var(--ds-success); }
.ds-badge-warning { background: var(--ds-warning-pale);  color: var(--ds-warning); }
.ds-badge-info    { background: var(--ds-info-pale);     color: var(--ds-info); }
.ds-badge-neutral { background: var(--ds-bg-card-alt);   color: var(--ds-text-sub); border: 1px solid var(--ds-border); }

/* ── Alert / Notice ─────────────────────────────────────────────────────── */
.ds-alert {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 9px 12px;
  border-radius: var(--ds-r-md);
  font-size: var(--ds-text-sm);
  border-left: 3px solid currentColor;
  margin: 4px 0;
}
.ds-alert i { margin-top: 1px; flex-shrink: 0; }
.ds-alert-danger  { background: var(--ds-danger-pale);  color: var(--ds-danger); }
.ds-alert-success { background: var(--ds-success-pale); color: var(--ds-success); }
.ds-alert-warning { background: var(--ds-warning-pale); color: var(--ds-warning); }
.ds-alert-info    { background: var(--ds-info-pale);    color: var(--ds-info); }

/* ── Modal ──────────────────────────────────────────────────────────────── */
.ds-modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--ds-bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  backdrop-filter: blur(2px);
}
.ds-modal-overlay.hidden { display: none; }
.ds-modal {
  background: var(--ds-bg-modal);
  border-radius: var(--ds-r-lg);
  box-shadow: var(--ds-shadow-lg);
  min-width: 320px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.ds-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--ds-bg-sidebar);
  color: var(--ds-text-light);
  flex-shrink: 0;
}
.ds-modal-title { font-size: var(--ds-text-base); font-weight: 600; }
.ds-modal-close {
  background: none;
  border: none;
  color: var(--ds-text-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 2px 6px;
  border-radius: var(--ds-r);
}
.ds-modal-close:hover { color: #fff; }
.ds-modal-body    { padding: 16px; overflow-y: auto; flex: 1; }
.ds-modal-footer  { padding: 10px 16px; border-top: 1px solid var(--ds-border); display: flex; justify-content: flex-end; gap: 8px; flex-shrink: 0; }

/* ── Confirm Dialog ─────────────────────────────────────────────────────── */
.ds-confirm {
  max-width: 380px;
  text-align: center;
}
.ds-confirm .ds-modal-body { padding: 24px 20px 12px; }
.ds-confirm p { color: var(--ds-text-sub); margin-top: 8px; font-size: var(--ds-text-sm); }

/* ── Loading ────────────────────────────────────────────────────────────── */
.ds-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px;
  gap: 10px;
  color: var(--ds-text-muted);
  font-size: var(--ds-text-sm);
}
.ds-spinner {
  width: 24px; height: 24px;
  border: 3px solid var(--ds-border);
  border-top-color: var(--ds-accent-light);
  border-radius: 50%;
  animation: ds-spin .7s linear infinite;
}
@keyframes ds-spin { to { transform: rotate(360deg); } }

/* ── Empty State ────────────────────────────────────────────────────────── */
.ds-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  gap: 8px;
  color: var(--ds-text-muted);
  text-align: center;
}
.ds-empty i { font-size: 32px; opacity: .4; }
.ds-empty-title { font-size: var(--ds-text-base); font-weight: 600; }
.ds-empty-sub   { font-size: var(--ds-text-sm); }

/* ── Audit Hinweis ──────────────────────────────────────────────────────── */
.ds-audit-notice {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(194,120,0,.08);
  border: 1px solid rgba(194,120,0,.25);
  border-radius: var(--ds-r);
  font-size: var(--ds-text-xs);
  color: var(--ds-warning);
}
.ds-audit-notice i { flex-shrink: 0; }

/* ── Filter / Toolbar ───────────────────────────────────────────────────── */
.ds-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 12px;
  background: var(--ds-bg-card-alt);
  border-bottom: 1px solid var(--ds-border);
}
.ds-toolbar-spacer { flex: 1; }

/* ── Pagination ─────────────────────────────────────────────────────────── */
.ds-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px;
  font-size: var(--ds-text-sm);
  color: var(--ds-text-sub);
}
.ds-page-btn {
  padding: 3px 8px;
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r);
  background: var(--ds-bg-card);
  color: var(--ds-text);
  cursor: pointer;
  font-size: var(--ds-text-xs);
  transition: background .1s;
}
.ds-page-btn:hover:not(:disabled) { background: var(--ds-accent-pale); border-color: var(--ds-accent-light); }
.ds-page-btn:disabled { opacity: .4; cursor: default; }
.ds-page-btn.active { background: var(--ds-accent); color: #fff; border-color: var(--ds-accent); }

/* ── Section Divider ────────────────────────────────────────────────────── */
.ds-divider {
  border: none;
  border-top: 1px solid var(--ds-border);
  margin: 10px 0;
}
.ds-section-title {
  font-size: var(--ds-text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--ds-text-muted);
  padding: 8px 0 4px;
}

/* ── Status Dot ─────────────────────────────────────────────────────────── */
.ds-status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.ds-status-dot.online  { background: var(--ds-success); }
.ds-status-dot.offline { background: var(--ds-text-muted); }
.ds-status-dot.busy    { background: var(--ds-warning); }

/* ── Card ───────────────────────────────────────────────────────────────── */
.ds-card {
  background: var(--ds-bg-card);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-r-md);
  box-shadow: var(--ds-shadow-sm);
  overflow: hidden;
}
.ds-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--ds-border);
  background: var(--ds-bg-card-alt);
}
.ds-card-title { font-size: var(--ds-text-base); font-weight: 600; }
.ds-card-body  { padding: 14px; }

/* ── Flex Utilities ─────────────────────────────────────────────────────── */
.ds-flex     { display: flex; }
.ds-flex-col { display: flex; flex-direction: column; }
.ds-items-center { align-items: center; }
.ds-justify-between { justify-content: space-between; }
.ds-gap-1 { gap: 4px; }
.ds-gap-2 { gap: 8px; }
.ds-gap-3 { gap: 12px; }
.ds-gap-4 { gap: 16px; }
.ds-flex-1 { flex: 1; }
.ds-mt-1 { margin-top: 4px; }
.ds-mt-2 { margin-top: 8px; }
.ds-mb-1 { margin-bottom: 4px; }
.ds-mb-2 { margin-bottom: 8px; }
.ds-p-2  { padding: 8px; }
.ds-hidden { display: none; }
.ds-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }