/* ==========================================================================
   Life HQ — Sidebar
   ========================================================================== */

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-md);
  background: linear-gradient(180deg, var(--white-soft) 0%, var(--periwinkle-50) 100%);
  border-right: 1px solid var(--cream-edge);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 30;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0 var(--space-2xs);
  white-space: nowrap;
}

.sidebar-brand .mark {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--periwinkle-300), var(--sage-300));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-brand .wordmark {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sidebar-brand .wordmark strong {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--ink-strong);
}
.sidebar-brand .wordmark span {
  font-size: var(--fs-tiny);
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 11px var(--space-sm);
  border-radius: var(--radius-md);
  color: var(--ink-light);
  font-weight: 500;
  font-size: 0.95rem;
  white-space: nowrap;
  position: relative;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast), transform var(--dur-fast) var(--ease-out);
}

.nav-link .nav-icon {
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--periwinkle-500);
}
.nav-link .nav-icon svg { width: 19px; height: 19px; }

.nav-link:hover {
  background: var(--white);
  color: var(--ink-strong);
  transform: translateX(2px);
  box-shadow: var(--shadow-xs);
}

.nav-link.is-active {
  background: var(--white);
  color: var(--ink-strong);
  box-shadow: var(--shadow-sm);
}
.nav-link.is-active .nav-icon { color: var(--periwinkle-600); }
.nav-link.is-active::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 50%;
  translate: 0 -50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--yellow-400);
  box-shadow: 0 0 0 4px var(--yellow-100);
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.sidebar-collapse-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px var(--space-sm);
  border: none;
  background: transparent;
  color: var(--ink-faint);
  border-radius: var(--radius-md);
  font-size: var(--fs-small);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.sidebar-collapse-btn:hover { background: var(--white); color: var(--ink-light); }
.sidebar-collapse-btn svg {
  width: 18px; height: 18px;
  transition: transform var(--dur-normal) var(--ease-soft);
}

/* ---- Collapsed state ---- */
.app-shell.is-collapsed .sidebar-brand .wordmark,
.app-shell.is-collapsed .nav-link .label,
.app-shell.is-collapsed .sidebar-collapse-btn .label {
  display: none;
}
.app-shell.is-collapsed .nav-link { justify-content: center; }
.app-shell.is-collapsed .sidebar-collapse-btn { justify-content: center; }
.app-shell.is-collapsed .sidebar-collapse-btn svg { transform: rotate(180deg); }
.app-shell.is-collapsed .sidebar-brand { justify-content: center; }

/* ---- Mobile ---- */
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .topbar { display: flex; }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(78vw, 300px);
    translate: -100% 0;
    transition: translate var(--dur-normal) var(--ease-soft);
    box-shadow: var(--shadow-lg);
  }
  .sidebar.is-open { translate: 0 0; }

  .sidebar-scrim {
    position: fixed;
    inset: 0;
    background: rgba(42, 39, 50, 0.35);
    backdrop-filter: blur(2px);
    z-index: 25;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-normal) var(--ease-soft);
  }
  .sidebar-scrim.is-open { opacity: 1; pointer-events: auto; }

  .app-shell.is-collapsed .sidebar-brand .wordmark,
  .app-shell.is-collapsed .nav-link .label,
  .app-shell.is-collapsed .sidebar-collapse-btn .label {
    display: revert;
  }
  .sidebar-collapse-btn { display: none; }
}