/* ==========================================================================
   layout.css — Heritage Business Suite  ·  "Indigo & Crimson" variant
   ========================================================================== */

.app-shell { display: flex; min-height: 100vh; background: var(--bg-0); }

/* --------------------------------------------------------------------------
   Sidebar — deep indigo panel, logo colour
   -------------------------------------------------------------------------- */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--indigo-900);
  border-right: 1px solid rgba(255,255,255,.06);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow: hidden;
  transition: width var(--ease-lg);
}
.sidebar.collapsed { width: var(--sidebar-col-w); }

/* Logo row — uses the actual logo image */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--topbar-h);
  padding: 0 14px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  flex-shrink: 0;
  overflow: hidden;
  background: var(--indigo-950);
}

/* Logo icon — crimson square as fallback mark */
.logo-icon {
  width: 32px; height: 32px;
  flex-shrink: 0;
  border-radius: var(--r-md);
  background: var(--crimson);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px var(--crimson-glow);
}
.logo-icon svg { width: 17px; height: 17px; color: #fff; }

.logo-text { overflow: hidden; white-space: nowrap; }
.logo-text .brand {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: .88rem;
  letter-spacing: -.01em;
  color: #fff;
}
/* "Hair" part in white, "Sense" in crimson — mirrors logo */
.logo-text .brand .logo-accent { color: var(--crimson-lt); }
.logo-text .tagline {
  font-size: .60rem;
  color: var(--indigo-400);
  letter-spacing: .10em;
  text-transform: uppercase;
  margin-top: 1px;
  font-family: var(--f-num);
}

/* Nav */
.sidebar-nav { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 10px 0; }
.nav-section { margin-bottom: 2px; }

.nav-section-label {
  padding: 10px 16px 3px;
  font-size: .58rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--indigo-500);
  white-space: nowrap;
  font-family: var(--f-num);
  transition: opacity var(--ease-md);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 1px 8px;
  padding: 7px 8px;
  border-radius: var(--r-md);
  color: var(--indigo-300);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  position: relative;
  font-size: .82rem;
  font-weight: 500;
  transition: background var(--ease), color var(--ease);
}
.nav-item:hover  { background: rgba(255,255,255,.05); color: var(--indigo-100); }

/* Active — crimson rail, logo-matched energy colour */
.nav-item.active {
  background: var(--crimson-dim);
  color: var(--crimson-lt);
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 16%; bottom: 16%;
  width: 3px;
  background: var(--crimson);
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 8px var(--crimson-glow);
}

.nav-item .nav-icon {
  width: 28px; height: 28px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm);
}
.nav-item svg      { width: 15px; height: 15px; flex-shrink: 0; }
.nav-item .nav-label { font-size: .82rem; font-weight: 500; transition: opacity var(--ease-md); }

.nav-badge {
  margin-left: auto;
  padding: 1px 6px;
  border-radius: var(--r-sm);
  background: var(--crimson);
  color: #fff;
  font-size: .60rem;
  font-weight: 700;
  font-family: var(--f-num);
  transition: opacity var(--ease-md);
}

.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-badge { opacity: 0; pointer-events: none; }

/* Footer */
.sidebar-footer { padding: 10px 8px; border-top: 1px solid rgba(255,255,255,.06); flex-shrink: 0; }
.sidebar-user {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 8px; border-radius: var(--r-md); overflow: hidden;
  transition: background var(--ease);
}
.sidebar-user:hover { background: rgba(255,255,255,.05); }
.sidebar-user-info  { flex: 1; overflow: hidden; }
.sidebar-user-name  { font-size: .80rem; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--indigo-100); }
.sidebar-user-role  { font-size: .64rem; color: var(--indigo-400); font-family: var(--f-num); letter-spacing: .03em; }
.sidebar.collapsed .sidebar-user-info { opacity: 0; }

/* Toggle */
.sidebar-toggle {
  position: absolute; top: 50%; right: -11px;
  transform: translateY(-50%);
  width: 22px; height: 22px; border-radius: var(--r-pill);
  background: var(--indigo-850); border: 1px solid var(--bdr-md);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; z-index: 101;
  transition: background var(--ease), border-color var(--ease);
}
.sidebar-toggle:hover { background: var(--indigo-800); border-color: var(--crimson); }
.sidebar-toggle svg   { width: 11px; height: 11px; color: var(--indigo-400); transition: transform var(--ease-lg); }
.sidebar.collapsed .sidebar-toggle svg { transform: rotate(180deg); }

/* --------------------------------------------------------------------------
   Topbar — deep indigo, crimson search focus
   -------------------------------------------------------------------------- */
.topbar {
  position: fixed; top: 0;
  left: var(--sidebar-w); right: 0;
  height: var(--topbar-h);
  background: var(--indigo-900);
  border-bottom: 1px solid rgba(255,255,255,.06);
  /* Crimson bottom accent line */
  box-shadow: 0 1px 0 0 rgba(200,16,46,.35);
  display: flex; align-items: center; gap: 14px;
  padding: 0 22px; z-index: 99;
  transition: left var(--ease-lg);
}

.topbar-title h2       { font-size: .92rem; font-weight: 800; letter-spacing: -.01em; color: #fff; }
.topbar-title .breadcrumb { font-size: .68rem; color: var(--indigo-400); font-family: var(--f-num); letter-spacing: .03em; }

.topbar-right { display: flex; align-items: center; gap: 6px; margin-left: auto; }

.topbar-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--indigo-950);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-md);
  padding: 6px 12px; width: 200px;
  transition: width var(--ease-md), border-color var(--ease), box-shadow var(--ease);
}
.topbar-search:focus-within {
  width: 260px;
  border-color: var(--crimson);
  box-shadow: 0 0 0 3px var(--crimson-dim);
}
.topbar-search svg   { width: 13px; height: 13px; color: var(--indigo-400); flex-shrink: 0; }
.topbar-search input { flex: 1; font-size: .80rem; background: transparent; color: var(--indigo-100); }
.topbar-search input::placeholder { color: var(--indigo-500); }

.icon-btn {
  width: 32px; height: 32px; border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--indigo-300); position: relative;
  transition: background var(--ease), color var(--ease);
}
.icon-btn:hover { background: rgba(255,255,255,.07); color: #fff; }
.icon-btn svg   { width: 15px; height: 15px; }

.notif-dot {
  position: absolute; top: 6px; right: 6px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--crimson);
  border: 1.5px solid var(--indigo-900);
  box-shadow: 0 0 5px var(--crimson-glow);
}

/* --------------------------------------------------------------------------
   Main area
   -------------------------------------------------------------------------- */
.main-area {
  margin-left: var(--sidebar-w);
  margin-top: var(--topbar-h);
  flex: 1; min-width: 0;
  min-height: calc(100vh - var(--topbar-h));
  display: flex; flex-direction: column;
  transition: margin-left var(--ease-lg);
}
.main-area.collapsed { margin-left: var(--sidebar-col-w); }

.page-content { padding: 24px 24px 52px; flex: 1; }

/* Page header */
.page-header {
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: 16px;
  margin-bottom: 22px; flex-wrap: wrap;
}
.page-header-left h1 {
  font-size: 1.30rem; font-weight: 800;
  letter-spacing: -.02em; color: var(--txt-1);
}
.page-header-left p  { font-size: .80rem; color: var(--txt-2); margin-top: 3px; }
.page-header-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   Grids
   -------------------------------------------------------------------------- */
.grid-4   { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.grid-3   { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.grid-2   { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.grid-2-1 { display: grid; grid-template-columns: 2fr 1fr;       gap: 16px; }
.grid-3-2 { display: grid; grid-template-columns: 3fr 2fr;       gap: 16px; }

/* Mobile overlay */
.sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(10,9,48,.65); z-index: 99;
}

/* --------------------------------------------------------------------------
   Dropdown
   -------------------------------------------------------------------------- */
.dropdown-panel {
  position: absolute; top: calc(100% + 6px); right: 0;
  width: 300px;
  background: var(--indigo-850);
  border: 1px solid var(--bdr-md);
  border-top: 2px solid var(--crimson);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-modal);
  z-index: 200; overflow: hidden;
  animation: slideDown .18s ease both;
}
.dropdown-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--bdr-lo);
  background: var(--indigo-800);
}
.dropdown-header h4   { font-size: .82rem; font-weight: 700; }
.dropdown-header span { font-size: .70rem; color: var(--crimson-lt); cursor: pointer; }

.notif-item {
  display: flex; gap: 10px; padding: 10px 16px;
  cursor: pointer; transition: background var(--ease);
  border-bottom: 1px solid var(--bdr-lo);
}
.notif-item:last-child { border-bottom: none; }
.notif-item:hover { background: var(--bg-hover); }

.notif-icon { width: 30px; height: 30px; flex-shrink: 0; border-radius: var(--r-sm); display: flex; align-items: center; justify-content: center; }
.notif-icon svg { width: 14px; height: 14px; }
.notif-text     { flex: 1; min-width: 0; }
.notif-text p   { font-size: .78rem; line-height: 1.4; }
.notif-text span{ font-size: .67rem; color: var(--txt-3); font-family: var(--f-num); }