/* BASE: reset, typografia, układ aplikacji. Tylko var(--…). */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, p, ul, ol, figure, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
h1, h2, h3, h4 { line-height: var(--leading-tight); font-weight: var(--weight-semibold); }
a { color: var(--color-accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; border-top: var(--border-width) solid var(--color-border); margin: var(--space-4) 0; }
code, kbd { font-family: var(--font-mono); font-size: 0.95em; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
[hidden] { display: none !important; }

/* ---------- App shell ---------- */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
}
.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-sidebar-bg);
  color: var(--color-sidebar-text);
  border-right: var(--border-width) solid var(--color-border);
  overflow-y: auto;
}
.sidebar__head { display: flex; align-items: center; justify-content: space-between; }
.sidebar__brand {
  display: block;
  padding: var(--space-4) var(--space-4);
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-text);
  letter-spacing: 0.01em;
}
.sidebar__brand:hover { text-decoration: none; }
/* Przełącznik menu na wąskich ekranach (bez JS: checkbox + label) */
.sidebar__toggle-input { position: absolute; opacity: 0; pointer-events: none; }
.sidebar__toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  margin-right: var(--space-4);
  padding: var(--space-1) var(--space-3);
  border: var(--border-width) solid var(--color-border-strong);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--text-sm);
}
.sidebar__toggle-input:focus-visible ~ .sidebar__head .sidebar__toggle { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.sidebar__body { display: flex; flex-direction: column; flex: 1; min-height: 0; }

.nav { display: flex; flex-direction: column; gap: var(--space-1); padding: var(--space-2) var(--space-3); flex: 1; }
.nav__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-sidebar-text);
  font-weight: var(--weight-medium);
}
.nav__item:hover { background: var(--color-surface-hover); text-decoration: none; }
.nav__item.is-active { background: var(--color-accent-soft); color: var(--color-accent-text); font-weight: var(--weight-semibold); }

.sidebar__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: var(--border-width) solid var(--color-border);
}
.sidebar__user { min-width: 0; font-size: var(--text-sm); color: var(--color-text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Przełącznik podmiotu w prawym górnym rogu (core.entity_context). */
.topbar { display: flex; justify-content: flex-end; margin-bottom: var(--space-3); }
.context-switch { display: flex; align-items: center; gap: var(--space-2); }
.context-switch__label { font-size: var(--text-xs); font-weight: var(--weight-semibold); text-transform: uppercase; letter-spacing: var(--tracking-caps); color: var(--color-text-muted); }
.context-switch__select { width: auto; max-width: 30rem; }
.context-switch.is-active .context-switch__select { border-color: var(--color-accent); background: var(--color-accent-soft); color: var(--color-accent-text); font-weight: var(--weight-semibold); }

/* Menu ustawień pod trybikiem: <details>, bez JS, otwiera się w górę. */
.settings-menu { position: relative; flex-shrink: 0; }
.settings-menu__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  list-style: none;
}
.settings-menu__toggle::-webkit-details-marker { display: none; }
.settings-menu__toggle:hover,
.settings-menu[open] .settings-menu__toggle { background: var(--color-surface-hover); color: var(--color-text); }
.settings-menu.is-active .settings-menu__toggle { background: var(--color-accent-soft); color: var(--color-accent-text); }
.settings-menu__toggle:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.settings-menu__panel {
  position: absolute;
  bottom: calc(100% + var(--space-2));
  right: 0;
  z-index: 20;
  min-width: 14rem;
  padding: var(--space-2);
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
.settings-menu__title {
  margin: 0;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
  color: var(--color-text-muted);
}
.settings-menu__item {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 0;
  border-radius: var(--radius-md);
  background: none;
  color: var(--color-text);
  font: inherit;
  font-size: var(--text-sm);
  text-align: left;
  cursor: pointer;
}
.settings-menu__item:hover { background: var(--color-surface-hover); text-decoration: none; }
.settings-menu__item.is-active { background: var(--color-accent-soft); color: var(--color-accent-text); font-weight: var(--weight-semibold); }
.settings-menu__divider { margin: var(--space-2) 0; border: 0; border-top: var(--border-width) solid var(--color-border); }

.main {
  min-width: 0;
  width: 100%;
  max-width: var(--content-max);
  padding: var(--space-5) var(--space-6) var(--space-7);
}

/* ---------- Nagłówek strony ---------- */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  margin-bottom: var(--space-5);
}
.page-title { font-size: var(--text-xl); }
.page-subtitle { margin-top: var(--space-1); color: var(--color-text-muted); }
.page-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-1); font-size: var(--text-sm); color: var(--color-text-muted); }
.breadcrumbs a { color: var(--color-text-muted); }
.breadcrumbs > * + *::before { content: "/"; margin-right: var(--space-2); color: var(--color-border-strong); }

/* ---------- Pomocnicze układy ---------- */
.grid { display: grid; gap: var(--space-4); grid-template-columns: minmax(0, 1fr); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stack { display: flex; flex-direction: column; gap: var(--space-4); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.messages { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }

/* ---------- Węższe ekrany ---------- */
@media (max-width: 1100px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 899px) {
  .app-shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: static; height: auto; border-right: 0; border-bottom: var(--border-width) solid var(--color-border); overflow: visible; }
  .sidebar__toggle { display: inline-flex; }
  .sidebar__body { display: none; }
  .sidebar__toggle-input:checked ~ .sidebar__body { display: flex; }
  .main { padding: var(--space-4) var(--space-4) var(--space-6); }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
}