/* Sirius shell — rail + pannello contestuale */
:root {
  --sirius-rail-w: 72px;
  --sirius-panel-w: 268px;
  --sirius-nav-total-w: calc(var(--sirius-rail-w) + var(--sirius-panel-w));
  --sirius-nav-bg: #0b1020;
  --sirius-nav-rail-bg: #080c18;
  --sirius-nav-accent: #3b82f6;
  --sirius-nav-accent-soft: rgba(59, 130, 246, 0.18);
}

body.sirius-shell-nav-active .app-shell {
  --sidebar-w: var(--sirius-nav-total-w);
}

body.sirius-nav-panel-collapsed.sirius-shell-nav-active {
  --sidebar-w: var(--sirius-rail-w);
}

#sirius-shell-nav {
  position: sticky;
  top: 0;
  height: 100vh;
  flex: 0 0 var(--sirius-nav-total-w);
  width: var(--sirius-nav-total-w) !important;
  min-width: var(--sirius-nav-total-w) !important;
  display: flex;
  flex-direction: row;
  background: var(--sirius-nav-bg);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 20;
  font-family: "Inter", system-ui, sans-serif;
  transition: flex-basis 0.22s ease, width 0.22s ease, min-width 0.22s ease;
}

body.sirius-nav-panel-collapsed #sirius-shell-nav {
  flex-basis: var(--sirius-rail-w);
  width: var(--sirius-rail-w) !important;
  min-width: var(--sirius-rail-w) !important;
}

body.sirius-nav-panel-collapsed #sirius-shell-nav .sirius-nav-panel {
  opacity: 0;
  pointer-events: none;
  width: 0;
  min-width: 0;
  padding: 0;
  overflow: hidden;
  border: none;
}

.sirius-rail {
  width: var(--sirius-rail-w);
  min-width: var(--sirius-rail-w);
  background: var(--sirius-nav-rail-bg);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.65rem 0;
  gap: 0.35rem;
}

.sirius-rail-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 0.5rem;
  border-radius: 12px;
  text-decoration: none;
}

.sirius-rail-brand img {
  width: 28px;
  height: 28px;
}

.sirius-rail-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  width: 56px;
  min-height: 52px;
  padding: 0.35rem 0.2rem;
  border: none;
  border-radius: 12px;
  background: transparent;
  color: rgba(233, 238, 252, 0.72);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.1;
  text-align: center;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.sirius-rail-btn i {
  font-size: 1.15rem;
}

.sirius-rail-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.sirius-rail-btn.is-active {
  background: var(--sirius-nav-accent-soft);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.35);
}

.sirius-rail-spacer {
  flex: 1;
  min-height: 0.5rem;
}

.sirius-rail-kbd {
  font-size: 0.5rem;
  opacity: 0.55;
  font-weight: 500;
}

.sirius-nav-panel {
  width: var(--sirius-panel-w);
  min-width: var(--sirius-panel-w);
  display: flex;
  flex-direction: column;
  color: #e9eefc;
  transition: opacity 0.2s ease, width 0.22s ease, padding 0.22s ease;
}

.sirius-panel-head {
  padding: 0.85rem 1rem 0.65rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sirius-panel-head-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.sirius-panel-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
}

.sirius-panel-sub {
  font-size: 0.72rem;
  color: rgba(233, 238, 252, 0.55);
  margin: 0.15rem 0 0;
}

.sirius-panel-context {
  font-size: 0.72rem;
  padding: 0.45rem 0.55rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 0.35rem;
}

.sirius-panel-context strong {
  color: #fff;
}

.sirius-panel-cmd-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.68rem;
  color: rgba(233, 238, 252, 0.55);
  padding: 0.35rem 0.5rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.2);
  cursor: pointer;
  white-space: nowrap;
}

.sirius-panel-cmd-hint:hover {
  border-color: rgba(59, 130, 246, 0.45);
  color: #fff;
}

.sirius-panel-cmd-hint kbd {
  font-size: 0.62rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.12);
}

.sirius-panel-collapse-btn {
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: #e9eefc;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}

.sirius-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0.65rem 0.75rem;
}

.sirius-pane {
  display: none;
}

.sirius-pane.is-active {
  display: block;
}

.sirius-panel-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sirius-panel-bento {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  margin-bottom: 0.65rem;
}

.sirius-bento-tile {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.55rem 0.5rem;
  border-radius: 10px;
  text-decoration: none;
  color: #e9eefc;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.72rem;
  font-weight: 600;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.12s ease;
}

.sirius-bento-tile:hover {
  background: var(--sirius-nav-accent-soft);
  border-color: rgba(59, 130, 246, 0.35);
  color: #fff;
  transform: translateY(-1px);
}

.sirius-bento-tile i {
  font-size: 1rem;
  opacity: 0.9;
}

.sirius-bento-tile span.bento-sub {
  font-size: 0.62rem;
  font-weight: 500;
  opacity: 0.65;
}

.sirius-panel-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.55rem;
  border-radius: 8px;
  color: #e9eefc;
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 500;
  transition: background 0.12s ease;
}

.sirius-panel-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.sirius-panel-link.active {
  background: var(--sirius-nav-accent-soft);
  color: #fff;
}

.sirius-panel-group {
  margin: 0.35rem 0;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.15);
}

.sirius-panel-group summary {
  cursor: pointer;
  padding: 0.45rem 0.55rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(233, 238, 252, 0.85);
  list-style: none;
}

.sirius-panel-group summary::-webkit-details-marker {
  display: none;
}

.sirius-panel-group summary::after {
  content: "▾";
  float: right;
  opacity: 0.5;
  font-size: 0.7rem;
}

.sirius-panel-group[open] summary::after {
  transform: rotate(180deg);
}

.sirius-panel-group .sirius-panel-link {
  padding-left: 0.85rem;
  font-size: 0.8rem;
}

.sirius-panel-foot {
  padding: 0.65rem 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Command palette */
.sirius-cmdpal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 1rem 1rem;
  background: rgba(8, 12, 24, 0.55);
  backdrop-filter: blur(4px);
}

.sirius-cmdpal.is-open {
  display: flex;
}

.sirius-cmdpal-card {
  width: min(560px, 100%);
  background: #12182b;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

.sirius-cmdpal-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sirius-cmdpal-input {
  flex: 1;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 1rem;
  outline: none;
}

.sirius-cmdpal-results {
  max-height: 50vh;
  overflow-y: auto;
  padding: 0.35rem;
}

.sirius-cmdpal-group-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(233, 238, 252, 0.45);
  padding: 0.35rem 0.55rem 0.2rem;
}

.sirius-cmdpal-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  padding: 0.5rem 0.55rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: #e9eefc;
  text-align: left;
  cursor: pointer;
  font-size: 0.88rem;
}

.sirius-cmdpal-item:hover,
.sirius-cmdpal-item.is-selected {
  background: var(--sirius-nav-accent-soft);
  color: #fff;
}

.sirius-cmdpal-item i {
  opacity: 0.85;
}

.sirius-cmdpal-empty {
  padding: 1rem;
  text-align: center;
  color: rgba(233, 238, 252, 0.5);
  font-size: 0.85rem;
}

/* Mobile bottom bar */
.sirius-mobile-bar {
  display: none;
}

@media (max-width: 767.98px) {
  .sirius-mobile-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1040;
    background: var(--sirius-nav-rail-bg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.35rem 0.25rem calc(0.35rem + env(safe-area-inset-bottom, 0px));
    justify-content: space-around;
    gap: 0.15rem;
  }

  body.sirius-shell-nav-active {
    padding-bottom: 62px;
  }

  .sirius-mobile-bar .sirius-rail-btn {
    width: auto;
    flex: 1;
    min-height: 48px;
    max-width: 72px;
  }
}