/* Atrium · Shared Component Library
 *
 * Token-driven, enterprise-grade components used across every dashboard
 * (platform-admin, tenant-admin, org-admin, user). One source of truth so
 * status badges, empty states, alerts, tables and modals look identical
 * everywhere and inherit the active theme automatically.
 *
 * Load order (in HTML):
 *   1. /shared/tokens.css      — design tokens
 *   2. /shared/theme.css       — semantic aliases + spacing + z-index
 *   3. /shared/shell.css       — shell chrome (sidebar, topbar, btn, card)
 *   4. /shared/components.css  — THIS FILE (badge/alert/table/modal/etc.)
 *
 * Pages that only link shell.css will still work — but the component
 * classes below will render unstyled. Always include this file.
 */

/* ─── Status badge ──────────────────────────────────────────────────────
 * Use for inline status pills: "Aktiv", "Pending", "Failed", "Beta".
 *
 *   <span class="badge">Default</span>
 *   <span class="badge badge--success">Aktiv</span>
 *   <span class="badge badge--warning">Pending</span>
 *   <span class="badge badge--danger">Fehlgeschlagen</span>
 *   <span class="badge badge--info">Beta</span>
 *   <span class="badge badge--neutral">Inaktiv</span>
 * ───────────────────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.01em;
  white-space: nowrap;
  background: var(--paper-2);
  color: var(--fg-muted);
  border: 1px solid transparent;
}

.badge--success { background: var(--ok-tint);    color: var(--ok);    }
.badge--warning { background: var(--warn-tint);  color: var(--warn);  }
.badge--danger  { background: var(--error-tint, var(--risk-tint)); color: var(--error, var(--risk)); }
.badge--info    { background: var(--info-tint);  color: var(--info);  }
.badge--neutral { background: var(--paper-2);    color: var(--fg-muted); }

.badge svg { width: 11px; height: 11px; flex-shrink: 0; }


/* ─── Alert ─────────────────────────────────────────────────────────────
 * Block-level message above forms or inline with content. NOT a toast.
 *
 *   <div class="alert">Info default.</div>
 *   <div class="alert alert--success"><span class="alert-icon">✓</span> Saved.</div>
 *   <div class="alert alert--warning">Heads-up.</div>
 *   <div class="alert alert--danger">Something broke.</div>
 *   <div class="alert alert--info">FYI.</div>
 * ───────────────────────────────────────────────────────────────────── */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--s-3, 12px);
  padding: var(--s-3, 12px) var(--s-4, 16px);
  border-radius: var(--r, 10px);
  border: 1px solid var(--border);
  background: var(--paper-2);
  color: var(--fg);
  font-size: 0.9rem;
  line-height: 1.5;
}

.alert--success { background: var(--ok-tint);   color: var(--ok);    border-color: var(--ok-tint); }
.alert--warning { background: var(--warn-tint); color: var(--warn);  border-color: var(--warn-tint); }
.alert--danger  { background: var(--error-tint, var(--risk-tint)); color: var(--error, var(--risk)); border-color: var(--error-tint, var(--risk-tint)); }
.alert--info    { background: var(--info-tint); color: var(--info);  border-color: var(--info-tint); }

.alert-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  font-weight: 700;
  text-align: center;
  line-height: 18px;
}


/* ─── Empty state ───────────────────────────────────────────────────────
 * First-paint placeholder when a list / table / panel has nothing to
 * show. Includes optional icon, title, subtitle, CTA button slot.
 *
 *   <div class="empty-state">
 *     <svg class="empty-state-icon">…</svg>
 *     <h3 class="empty-state-title">Noch keine Einträge</h3>
 *     <p class="empty-state-hint">Sobald du eine Datei lädst, sehe ich sie hier.</p>
 *     <button class="btn btn--primary">Datei hochladen</button>
 *   </div>
 * ───────────────────────────────────────────────────────────────────── */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s-2, 8px);
  padding: var(--s-7, 48px) var(--s-4, 16px);
  text-align: center;
  color: var(--fg-muted);
}

.empty-state-icon {
  width: 48px;
  height: 48px;
  color: var(--fg-muted);
  opacity: 0.6;
  margin-bottom: var(--s-2, 8px);
}

.empty-state-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  line-height: 1.4;
}

.empty-state-hint {
  margin: 0;
  max-width: 380px;
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

.empty-state .btn {
  margin-top: var(--s-3, 12px);
}


/* ─── Page context badge ───────────────────────────────────────────────
 * Small breadcrumb-style pill near a page title that makes the role-
 * scope of the surface unmistakable at a glance.
 *
 *   <span class="page-context-badge page-context-badge--admin">
 *     Org-Admin · acme-corp
 *   </span>
 *
 *   <span class="page-context-badge page-context-badge--user">
 *     User · jane@acme
 *   </span>
 * ───────────────────────────────────────────────────────────────────── */

.page-context-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1, 4px);
  padding: 2px var(--s-2, 8px);
  border-radius: var(--r-sm, 6px);
  background: var(--paper-2);
  border: 1px solid var(--hair);
  color: var(--fg-muted);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.page-context-badge svg {
  width: 11px;
  height: 11px;
  flex-shrink: 0;
}
.page-context-badge--admin {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent-soft);
}
.page-context-badge--tenant {
  background: var(--info-tint);
  color: var(--info);
  border-color: var(--info-tint);
}
.page-context-badge--user {
  background: var(--paper-2);
}


/* ─── Inline link ──────────────────────────────────────────────────────
 * Accent-coloured inline anchor for prose. Use `.link` on cross-surface
 * links (e.g., role-scope cross-pointer between org-connections and
 * my-connections) so they read as obvious links inside copy.
 *
 *   <a href="…" class="link">Meine Verbindungen →</a>
 * ───────────────────────────────────────────────────────────────────── */

a.link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  font-weight: 500;
}
a.link:hover {
  color: var(--accent-2, var(--accent));
  text-decoration-thickness: 1.5px;
}
a.link:focus-visible {
  outline: 2px solid var(--accent-ring, var(--accent));
  outline-offset: 2px;
  border-radius: 2px;
}


/* ─── Loading state ─────────────────────────────────────────────────────
 * Inline spinner + label. Replaces bare "Lade…" text.
 *
 *   <div class="loading-state">
 *     <span class="spinner" aria-hidden="true"></span>
 *     <span>Lade Daten …</span>
 *   </div>
 * ───────────────────────────────────────────────────────────────────── */

.loading-state {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2, 8px);
  padding: var(--s-3, 12px) 0;
  font-size: 0.9rem;
  color: var(--fg-muted);
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: atrium-spin 0.7s linear infinite;
  flex-shrink: 0;
}

.spinner--sm { width: 12px; height: 12px; border-width: 1.5px; }
.spinner--lg { width: 22px; height: 22px; border-width: 2.5px; }

@keyframes atrium-spin {
  to { transform: rotate(360deg); }
}


/* ─── Data table ────────────────────────────────────────────────────────
 * Standardized list-of-records table with header chrome, hover affordance,
 * zebra striping, and mobile horizontal-scroll wrapper.
 *
 *   <div class="data-table-wrap">
 *     <table class="data-table">
 *       <thead><tr><th scope="col">Name</th><th>Status</th></tr></thead>
 *       <tbody>
 *         <tr><td>Foo</td><td><span class="badge badge--success">Aktiv</span></td></tr>
 *       </tbody>
 *     </table>
 *   </div>
 * ───────────────────────────────────────────────────────────────────── */

.data-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: var(--r, 10px);
  background: var(--surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  color: var(--fg);
}

.data-table th,
.data-table td {
  padding: var(--s-3, 12px) var(--s-4, 16px);
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--hair);
}

.data-table thead th {
  background: var(--paper-2);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1;
}

.data-table tbody tr:hover {
  background: var(--bg-hover);
}

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

.data-table .data-table-num,
.data-table th.data-table-num { text-align: right; font-variant-numeric: tabular-nums; }

.data-table .data-table-actions { text-align: right; white-space: nowrap; }
.data-table .data-table-actions .btn { margin-left: 4px; }

/* Empty-table state — show inside the wrap when tbody is empty */
.data-table-wrap > .empty-state { padding: var(--s-6, 32px) var(--s-4, 16px); }


/* ─── Modal ─────────────────────────────────────────────────────────────
 * Button-only-close modal. Backdrop and Escape do NOT dismiss — the user
 * must click an explicit button (X in header OR Schließen/Abbrechen in
 * footer). This is intentional to prevent accidental dismissal during
 * text selection or stray clicks while a form has unsaved input.
 *
 *   <div class="atr-modal-host" role="dialog" aria-modal="true">
 *     <div class="atr-modal-backdrop"></div>
 *     <div class="atr-modal" role="document">
 *       <header class="atr-modal-head">
 *         <h2 class="atr-modal-title">Title</h2>
 *         <button class="icon-btn" data-modal-close aria-label="Schließen">✕</button>
 *       </header>
 *       <div class="atr-modal-body">…</div>
 *       <footer class="atr-modal-foot">
 *         <button class="btn btn--secondary" data-modal-close>Abbrechen</button>
 *         <button class="btn btn--primary">Speichern</button>
 *       </footer>
 *     </div>
 *   </div>
 *
 * shared/modal.js installs button-only-close handlers automatically
 * when the modal is opened via atriumModal.open(html, opts).
 * ───────────────────────────────────────────────────────────────────── */

.atr-modal-host {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal, 60);
  display: grid;
  place-items: center;
  padding: var(--s-4, 16px);
}

.atr-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  /* Intentional: no click handler. Clicking the backdrop must NOT close
     the modal so accidental drags during text selection don't dismiss
     forms with unsaved input. The only way out is a button. */
  cursor: default;
}

html.dark .atr-modal-backdrop { background: rgba(0, 0, 0, 0.72); }

.atr-modal {
  position: relative;
  background: var(--surface);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg, 14px);
  box-shadow: var(--shadow-lg);
  max-width: min(560px, 100%);
  width: 100%;
  max-height: calc(100vh - var(--s-6, 32px));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: atrium-modal-in 120ms ease-out;
}

.atr-modal--md { max-width: min(720px, 100%); }
.atr-modal--lg { max-width: min(960px, 100%); }
.atr-modal--xl { max-width: min(1180px, 100%); }

@keyframes atrium-modal-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0)   scale(1); }
}

.atr-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3, 12px);
  padding: var(--s-4, 16px) var(--s-5, 24px);
  border-bottom: 1px solid var(--hair);
  flex-shrink: 0;
}

.atr-modal-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  line-height: 1.4;
}

.atr-modal-sub {
  margin: 4px 0 0;
  font-size: 0.825rem;
  color: var(--fg-muted);
}

.atr-modal-body {
  padding: var(--s-5, 24px);
  overflow-y: auto;
  flex: 1 1 auto;
}

.atr-modal-foot {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--s-2, 8px);
  padding: var(--s-3, 12px) var(--s-5, 24px);
  border-top: 1px solid var(--hair);
  background: var(--paper-2);
  flex-shrink: 0;
}

.atr-modal-foot .btn:first-child:not(:only-child) {
  margin-right: auto;
}


/* ─── Icon button (close-style) ────────────────────────────────────── */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: var(--r, 10px);
  background: transparent;
  color: var(--fg-muted);
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--fg); }
.icon-btn:focus-visible { outline: 2px solid var(--accent-ring); outline-offset: 2px; }
.icon-btn svg { width: 16px; height: 16px; }


/* When a modal is open, lock body scroll so background doesn't drift
   behind the dialog. Class added by shared/modal.js. */
html.atr-modal-open,
html.atr-modal-open body {
  overflow: hidden;
}


/* ─── Backwards-compat token aliases used by some pages ─────────────── */
:root {
  --color-warning: var(--warn);
  --color-error:   var(--error, var(--risk));
  --color-info:    var(--info);
  --color-success: var(--ok);
}

/* ─── SP-3 Pending-Deletion banner (danger variant) ─────────────────── */
/* The base ``.banner`` lives in shell.css; ``--danger`` is the red
   variant used by the org pending-deletion read-only warning. There is
   no dedicated --danger token in the palette — ``--error`` is the
   canonical red, matching .btn--danger / .modal--danger. */
.banner--danger {
  background: var(--error-tint);
  color: var(--ink-2);
  border-color: color-mix(in srgb, var(--error) 35%, transparent);
}
.banner--danger svg { color: var(--error); stroke: var(--error); }
/* The shared chrome (shell.js) injects ``.atrium-pending-banner`` right
   under the top-bar. Give it a little breathing room and push the
   Cancel-button to the trailing edge. */
.atrium-pending-banner .banner { margin: var(--s-3) var(--s-4) 0; }
.atrium-pending-banner-text { flex: 1; min-width: 0; }
.atrium-pending-banner .btn { flex-shrink: 0; }