* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: 0.5px;
  font-weight: 400;
  color: var(--color-text);
}
h1 { font-size: 32px; }
h2 { font-size: 24px; }
h3 { font-size: 18px; }

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ---------- App shell ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  backdrop-filter: var(--glass-filter);
  -webkit-backdrop-filter: var(--glass-filter);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  padding: 0 0 var(--space-4) 0;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  transition: transform var(--transition-med);
  z-index: 100;
}
.sidebar.collapsed { transform: translateX(-100%); }

.sidebar-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 6px;
  padding: 8px var(--space-3) var(--space-3);
  border-bottom: 1px solid var(--sidebar-border);
  margin-bottom: var(--space-3);
}
.sidebar-brand img {
  width: 96%;
  max-width: 235px;
  height: auto;
  max-height: 105px;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}
.sidebar-brand .logo-badge {
  width: 36px; height: 36px;
  background: var(--color-yellow);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: #0a0a0a; font-family: var(--font-display); font-size: 20px;
}
.sidebar-brand .brand-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.5px;
  color: var(--sidebar-brand);
  width: 100%;
  word-break: break-word;
  margin-top: 2px;
}

.sidebar-nav { flex: 1; overflow-y: auto; padding: 0 var(--space-2); }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 11px var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  font-size: 14px;
  margin-bottom: 2px;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.sidebar-nav a:hover { background: var(--sidebar-item-hover-bg); color: var(--sidebar-text-hover); }
.sidebar-nav a.active { background: var(--sidebar-item-active-bg); color: var(--sidebar-item-active-text); font-weight: 600; }
.sidebar-nav .icon { font-size: 16px; width: 18px; text-align: center; }
.sidebar-nav .nav-section-label {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--sidebar-label);
  padding: var(--space-3) var(--space-3) var(--space-1);
  letter-spacing: 1px;
}

.sidebar-footer {
  padding: var(--space-3) var(--space-3) 0;
  border-top: 1px solid var(--sidebar-border);
  margin-top: var(--space-3);
  color: var(--sidebar-brand);
}
.sidebar-footer .btn-icon { color: var(--sidebar-text); }
.sidebar-footer div[style*="color:var(--color-text-faint)"] { color: var(--sidebar-label) !important; }

.main-area {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ---------- Premium Ivory & Brass Header (.topbar) ---------- */
.topbar {
  height: 68px !important;
  border-bottom: 1px solid rgba(18, 25, 43, 0.05) !important;
  background: var(--surface-ivory, #FBF8F2) !important;
  box-shadow: var(--shadow-header, 0 1px 2px rgba(18,25,43,0.05), 0 8px 20px rgba(18,25,43,0.04)) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  padding: calc(env(safe-area-inset-top, 0px) + 8px) 24px 8px 24px !important;
  position: fixed;
  top: 0;
  left: var(--sidebar-width, 260px);
  right: 0;
  z-index: 50;
  color: var(--ink-950, #12192B);
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  border-radius: 0 !important;
  margin: 0 !important;
}
[data-theme="dark"] .topbar {
  background: var(--surface-ivory-dark, #0D1626) !important;
  border-bottom: 1px solid rgba(243, 239, 230, 0.08) !important;
  box-shadow: 0 1px 2px rgba(0,0,0,0.25), 0 8px 20px rgba(0,0,0,0.3) !important;
  color: var(--ink-950-dark, #F3EFE6);
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  flex: 1 1 auto;
}
.topbar-center-spacer {
  flex: 1 1 auto;
  min-width: 16px;
}
.topbar-right {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.menu-toggle-btn {
  display: none;
  font-size: 20px;
  color: inherit;
  cursor: pointer;
}

/* Greeting Typography & Accent Underline */
.dash-greeting-wrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.dash-greeting-headline {
  font-size: clamp(15px, 2.2vw, 18px);
  font-weight: 600;
  color: var(--ink-950, #12192B);
  line-height: 1.25;
}
[data-theme="dark"] .dash-greeting-headline {
  color: var(--ink-950-dark, #F3EFE6);
}
.dash-greeting-underline {
  width: 24px;
  height: 2px;
  background: var(--brass-500, #B08A2E);
  border-radius: 99px;
  margin-top: 3px;
  margin-bottom: 2px;
}
[data-theme="dark"] .dash-greeting-underline {
  background: var(--brass-500-dark, #D4AF63);
}
.dash-greeting-date {
  font-size: 12px;
  color: var(--ink-500, #6E6A62);
  font-weight: 400;
  line-height: 1.2;
}
[data-theme="dark"] .dash-greeting-date {
  color: #94A3B8;
}

/* Avatar Chip & Anchored Panel */
.topbar-avatar-dropdown-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.topbar-avatar-chip {
  width: 36px;
  height: 36px;
  min-width: 40px;
  min-height: 40px;
  border-radius: 50%;
  background: var(--ink-950, #12192B);
  border: 1px solid var(--brass-100, #EFE3C7);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.18s ease;
  padding: 0;
}
[data-theme="dark"] .topbar-avatar-chip {
  background: #1E293B;
  border-color: rgba(212, 175, 99, 0.25);
}
.topbar-avatar-chip:hover,
.topbar-avatar-chip:active {
  box-shadow: var(--shadow-header);
  transform: translateY(-1px);
}
.topbar-avatar-chip:focus-visible {
  outline: 2px solid var(--brass-500, #B08A2E);
  outline-offset: 2px;
}
.topbar-avatar-initials {
  color: var(--brass-500, #B08A2E);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  user-select: none;
}
[data-theme="dark"] .topbar-avatar-initials {
  color: var(--brass-500-dark, #D4AF63);
}

.topbar-avatar-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 180px;
  background: var(--surface-ivory, #FBF8F2);
  border: 1px solid var(--brass-100, #EFE3C7);
  border-radius: var(--radius-md, 12px);
  box-shadow: 0 10px 25px -5px rgba(18, 25, 43, 0.15), 0 4px 10px -5px rgba(18, 25, 43, 0.08);
  padding: 6px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
[data-theme="dark"] .topbar-avatar-menu {
  background: var(--surface-ivory-dark, #0D1626);
  border-color: rgba(212, 175, 99, 0.22);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.45);
}
.topbar-avatar-menu.hidden {
  display: none !important;
}
.topbar-avatar-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-950, #12192B);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.15s ease, color 0.15s ease;
}
[data-theme="dark"] .topbar-avatar-menu-item {
  color: var(--ink-950-dark, #F3EFE6);
}
.topbar-avatar-menu-item:hover {
  background: rgba(176, 138, 46, 0.12);
  color: var(--brass-500, #B08A2E);
}
[data-theme="dark"] .topbar-avatar-menu-item:hover {
  background: rgba(212, 175, 99, 0.15);
  color: var(--brass-500-dark, #D4AF63);
}
.topbar-avatar-menu-item.logout-item {
  color: var(--maroon-600, #7A2E2E);
}
[data-theme="dark"] .topbar-avatar-menu-item.logout-item {
  color: #F87171;
}
.topbar-avatar-menu-item.logout-item:hover {
  background: rgba(122, 46, 46, 0.1);
}
.topbar-avatar-menu-item:focus-visible {
  outline: 2px solid var(--brass-500, #B08A2E);
  outline-offset: -2px;
}

.content-area { padding: var(--space-4); padding-top: calc(58px + env(safe-area-inset-top, 0px) + var(--space-4)); flex: 1; min-width: 0; }

/* Bottom Navigation Bar (Mobile Native App Experience) */
.app-bottom-nav {
  display: none;
}

@media (max-width: 960px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 1000;
    box-shadow: 3px 0 12px rgba(0, 0, 0, 0.12);
    width: 280px !important;
    max-width: 85vw !important;
    border-right: 1px solid var(--color-border);
    border-radius: 0 16px 16px 0;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(1px);
    -webkit-backdrop-filter: blur(1px);
    z-index: 999;
  }
  .sidebar.open ~ .sidebar-backdrop,
  .sidebar-backdrop.active {
    display: block;
  }
  .main-area {
    margin-left: 0;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
  }
  .menu-toggle-btn { display: flex !important; align-items: center; justify-content: center; }
  .topbar { padding: calc(env(safe-area-inset-top, 0px) + 8px) var(--space-3) 8px var(--space-3) !important; left: 0 !important; width: 100% !important; }
  .content-area {
    padding: var(--space-3);
    padding-top: calc(58px + env(safe-area-inset-top, 0px) + var(--space-3)) !important;
    padding-bottom: calc(56px + env(safe-area-inset-bottom, 0px) + var(--space-3)) !important;
  }

  .app-bottom-nav {
    display: flex !important;
    position: fixed;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: calc(56px + env(safe-area-inset-bottom, 0px)) !important;
    background: var(--color-bg, #121212) !important;
    border: none !important;
    border-top: 1px solid var(--color-border, rgba(255,255,255,0.10)) !important;
    border-radius: 0 !important;
    z-index: 950;
    align-items: flex-start;
    justify-content: space-around;
    padding: 0 !important;
    padding-bottom: env(safe-area-inset-bottom, 0px) !important;
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.08) !important;
    margin: 0 !important;
  }
  [data-theme="light"] .app-bottom-nav {
    background: #FFFFFF !important;
    border-top: 1px solid rgba(0, 0, 0, 0.08) !important;
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.06) !important;
  }
  .bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    flex: 1;
    height: 56px;
    color: var(--color-text-dim, #a1a1aa);
    text-decoration: none;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 0;
    position: relative;
  }
  .bottom-nav-item svg {
    width: 21px;
    height: 21px;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .bottom-nav-item.active {
    color: var(--color-yellow, #facc15) !important;
    background: transparent !important;
  }
  .bottom-nav-item.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 3px;
    border-radius: 0 0 99px 99px;
    background: var(--color-yellow, #facc15);
  }
  .bottom-nav-item.active svg {
    transform: scale(1.1);
  }
}

@media (max-width: 640px) {
  .topbar {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: calc(env(safe-area-inset-top, 8px) + 10px) 16px 10px 16px !important;
    height: 68px !important;
    background: var(--surface-ivory, #FBF8F2) !important;
    box-shadow: var(--shadow-header) !important;
    border-bottom: 1px solid rgba(18, 25, 43, 0.05) !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    border-radius: 0 !important;
    margin: 0 !important;
  }
  [data-theme="dark"] .topbar {
    background: var(--surface-ivory-dark, #0D1626) !important;
    border-bottom: 1px solid rgba(243, 239, 230, 0.08) !important;
  }
  .menu-toggle-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 38px !important;
    height: 38px !important;
    flex-shrink: 0;
  }
  .topbar-center-spacer {
    display: none;
  }
  .topbar-fullscreen-btn,
  #pwa-install-topbar-btn,
  .topbar-right > .badge-yellow,
  .topbar-mobile-profile {
    display: none !important;
  }
  .app-bottom-nav {
    display: flex !important;
  }
  .main-area {
    padding: 0 !important;
  }
  .content-area {
    padding: 14px 14px calc(56px + env(safe-area-inset-bottom, 0px) + 14px) 14px !important;
    padding-top: calc(58px + env(safe-area-inset-top, 0px) + 14px) !important;
  }

  /* Inventory Mobile 2x2 Information Grid */
  #inventory-kpis {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }
  #inventory-kpis .inv-kpi-card {
    padding: 12px 10px !important;
    min-width: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
  }
  #inventory-kpis .kpi-label {
    font-size: 11px !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  #inventory-kpis .kpi-value {
    font-size: 17px !important;
    margin: 4px 0 2px !important;
    font-weight: 800 !important;
  }
  #inventory-kpis .kpi-sub {
    font-size: 10px !important;
    line-height: 1.2 !important;
  }
}

@media (max-width: 480px) {
  .topbar {
    padding: calc(env(safe-area-inset-top, 8px) + 8px) 12px 8px 12px !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    border-radius: 0 !important;
    margin: 0 !important;
  }
  .topbar .page-title {
    font-size: 14.5px !important;
    max-width: none !important;
  }
  .topbar-right { gap: 6px !important; }
  .main-area {
    padding: 0 !important;
  }
  .content-area {
    padding: 12px 12px calc(56px + env(safe-area-inset-bottom, 0px) + 12px) 12px !important;
    padding-top: calc(58px + env(safe-area-inset-top, 0px) + 12px) !important;
  }
  .bottom-nav-item { font-size: 10px; }
  .bottom-nav-item svg { width: 20px; height: 20px; }
}

/* ========== PREMIUM GRADIENT TOP INFORMATION BOXES ========== */
.stat-card,
.kpi-card,
.top-info-card {
  border-radius: 16px !important;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.stat-card:hover,
.kpi-card:hover,
.top-info-card:hover {
  transform: translateY(-3px);
}

/* 1. Sapphire / Ocean Navy Premium Touch */
.stat-card:nth-child(4n+1),
.kpi-card:nth-child(4n+1),
.gradient-card-sapphire {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.16) 0%, rgba(59, 130, 246, 0.05) 100%) !important;
  border: 1px solid rgba(59, 130, 246, 0.30) !important;
  box-shadow: 0 10px 24px -6px rgba(59, 130, 246, 0.14) !important;
}
.stat-card:nth-child(4n+1)::before,
.kpi-card:nth-child(4n+1)::before,
.gradient-card-sapphire::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, #3B82F6, #60A5FA);
}

/* 2. Emerald / Wealth Gold Premium Touch */
.stat-card:nth-child(4n+2),
.kpi-card:nth-child(4n+2),
.gradient-card-emerald {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.16) 0%, rgba(5, 150, 105, 0.05) 100%) !important;
  border: 1px solid rgba(16, 185, 129, 0.32) !important;
  box-shadow: 0 10px 24px -6px rgba(16, 185, 129, 0.15) !important;
}
.stat-card:nth-child(4n+2)::before,
.kpi-card:nth-child(4n+2)::before,
.gradient-card-emerald::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, #10B981, #34D399);
}

/* 3. Royal Amethyst / Violet Premium Touch */
.stat-card:nth-child(4n+3),
.kpi-card:nth-child(4n+3),
.gradient-card-amethyst {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.16) 0%, rgba(168, 85, 247, 0.05) 100%) !important;
  border: 1px solid rgba(139, 92, 246, 0.30) !important;
  box-shadow: 0 10px 24px -6px rgba(139, 92, 246, 0.14) !important;
}
.stat-card:nth-child(4n+3)::before,
.kpi-card:nth-child(4n+3)::before,
.gradient-card-amethyst::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, #8B5CF6, #C084FC);
}

/* 4. Sunset Amber / Warm Brass Premium Touch */
.stat-card:nth-child(4n+4),
.kpi-card:nth-child(4n+4),
.gradient-card-amber {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.16) 0%, rgba(217, 119, 6, 0.05) 100%) !important;
  border: 1px solid rgba(245, 158, 11, 0.32) !important;
  box-shadow: 0 10px 24px -6px rgba(245, 158, 11, 0.15) !important;
}
.stat-card:nth-child(4n+4)::before,
.kpi-card:nth-child(4n+4)::before,
.gradient-card-amber::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, #F59E0B, #FBBF24);
}

[data-theme="dark"] .stat-card,
[data-theme="dark"] .kpi-card,
[data-theme="dark"] .top-info-card {
  backdrop-filter: blur(14px);
}

/* ========== PRINT STYLES ========== */
@media print {
  :root, :root[data-theme="light"] {
    --color-bg: #FFFFFF !important;
    --color-surface: #FFFFFF !important;
    --color-surface-2: #F2F1EC !important;
    --color-border: #E5E3DC !important;
    --color-yellow: #E6A800 !important;
    --color-text: #1A1A1A !important;
    --color-text-dim: #5C5C5C !important;
    --color-text-faint: #949494 !important;
    --color-success: #1E8E4F !important;
    --color-danger: #D64545 !important;
  }
  body { background: #FFFFFF !important; color: #1A1A1A !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .sidebar, .topbar { display: none !important; }
  .main-area { margin: 0 !important; }
  .content-area { padding: 0 !important; }
}