/* ============================================================
   B2B 3PL Warehouse Management System - Main Stylesheet
   Industrial Utilitarian Aesthetic
   Fonts: Barlow Condensed (headings) + IBM Plex Sans (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ── CSS RESET & VARIABLES ───────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg:         #0d0f12;
  --color-surface:    #161b22;
  --color-surface2:   #1e2530;
  --color-border:     #2d3748;
  --color-accent:     #f6ad3a;
  --color-btn-text:   #fff;
  --color-accent2:    #e85d04;
  --color-success:    #22c55e;
  --color-warning:    #eab308;
  --color-danger:     #ef4444;
  --color-info:       #38bdf8;
  --color-text:       #e2e8f0;
  --color-text-muted: #94a3b8;
  --font-heading:     'Barlow Condensed', sans-serif;
  --font-body:        'IBM Plex Sans', sans-serif;
  --font-mono:        'IBM Plex Mono', monospace;
  --radius-sm:        4px;
  --radius-md:        6px;
  --radius-lg:        10px;
  --shadow-card:      0 4px 24px rgba(0,0,0,0.4);
  --sidebar-w:        260px;
  --topbar-h:         60px;
  --transition:       0.18s ease;
}

/* Light mode override applied by theme */
[data-theme="light"] {
  --color-bg:         #f0f2f5;
  --color-surface:    #ffffff;
  --color-surface2:   #f1f5f9;
  --color-border:     #dde2ea;
  --color-text:       #0f172a;
  --color-text-muted: #64748b;
  --shadow-card:      0 2px 12px rgba(0,0,0,0.08);
}

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── TYPOGRAPHY ──────────────────────────────────────────── */
h1,h2,h3,h4,h5,h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--color-text);
}
h1 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent2); }

code, pre, .mono { font-family: var(--font-mono); font-size: 0.875em; }

/* ── LAYOUT: SHELL ────────────────────────────────────────── */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  min-height: 100vh;
}

/* ── TOPBAR ───────────────────────────────────────────────── */
.topbar {
  grid-column: 1 / -1;
  height: var(--topbar-h);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 200;
  backdrop-filter: blur(8px);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: var(--sidebar-w);
  flex-shrink: 0;
  text-decoration: none;
}
.topbar-brand .brand-mark {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent2));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  color: #000;
  flex-shrink: 0;
}
.topbar-brand .brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--color-text);
  text-transform: uppercase;
}
.topbar-brand .brand-sub {
  font-size: 0.65rem;
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: block;
  margin-top: -2px;
}

.topbar-search {
  flex: 1;
  max-width: 360px;
  position: relative;
}
.topbar-search input {
  width: 100%;
  padding: 0.45rem 0.75rem 0.45rem 2.25rem;
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition);
}
.topbar-search input:focus { border-color: var(--color-accent); }
.topbar-search .search-icon {
  position: absolute;
  left: 0.65rem; top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.topbar-btn {
  width: 36px; height: 36px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
  position: relative;
}
.topbar-btn:hover { background: var(--color-surface2); color: var(--color-text); border-color: var(--color-border); }

.notif-badge {
  position: absolute;
  top: 4px; right: 4px;
  width: 8px; height: 8px;
  background: var(--color-danger);
  border-radius: 50%;
  border: 1.5px solid var(--color-surface);
}

.user-menu-trigger {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.3rem 0.6rem;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}
.user-menu-trigger:hover { background: var(--color-surface2); border-color: var(--color-accent); }
.user-avatar {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent2));
  border-radius: 50%;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  color: #000;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.user-info { text-align: left; }
.user-name { font-size: 0.8rem; font-weight: 600; display: block; }
.user-role {
  font-size: 0.65rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
}

/* Dropdown */
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 200px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity var(--transition), transform var(--transition);
  overflow: hidden;
}
.dropdown.open .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
/* When JS sets fixed positioning to escape stacking-context parents (backdrop-filter etc.) */
.dropdown-menu.is-fixed {
  position: fixed;
  top: auto;
  right: auto;
}
.dropdown-item {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 1rem;
  color: var(--color-text);
  font-size: 0.875rem;
  cursor: pointer;
  transition: background var(--transition);
  border: none; background: none; width: 100%; text-align: left;
}
.dropdown-item:hover { background: var(--color-surface2); color: var(--color-accent); }
.dropdown-divider { height: 1px; background: var(--color-border); margin: 0.25rem 0; }

/* ── SIDEBAR ──────────────────────────────────────────────── */
.sidebar {
  grid-column: 1;
  grid-row: 2;
  width: var(--sidebar-w);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  height: calc(100vh - var(--topbar-h));
  position: sticky;
  top: var(--topbar-h);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  padding: 0.75rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

.sidebar-section { padding: 0 0.75rem; margin-bottom: 0.25rem; }
.sidebar-section-label {
  font-size: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.85rem 0.5rem 0.35rem;
  display: block;
}

.nav-item {
  display: flex; align-items: center; gap: 0.65rem;
  padding: 0.55rem 0.65rem;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  border: none; background: none; width: 100%; text-align: left;
  position: relative;
  overflow: hidden;
}
.nav-item:hover {
  background: var(--color-surface2);
  color: var(--color-text);
}
.nav-item.active {
  background: rgba(246,173,58,0.12);
  color: var(--color-accent);
  font-weight: 600;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 70%;
  background: var(--color-accent);
  border-radius: 0 2px 2px 0;
}
.nav-item .nav-icon { width: 18px; flex-shrink: 0; opacity: 0.75; }
.nav-item:hover .nav-icon, .nav-item.active .nav-icon { opacity: 1; }
.nav-badge {
  margin-left: auto;
  background: var(--color-accent2);
  color: #fff;
  font-size: 0.65rem;
  font-family: var(--font-heading);
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}

/* Collapsible subnav */
.nav-group > .nav-item .nav-arrow {
  margin-left: auto;
  transition: transform var(--transition);
  opacity: 0.5;
}
.nav-group.open > .nav-item .nav-arrow { transform: rotate(90deg); }
.nav-subitems {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.nav-group.open .nav-subitems { max-height: 400px; }
.nav-subitems .nav-item { padding-left: 2.25rem; font-size: 0.825rem; }

/* ── MAIN CONTENT ─────────────────────────────────────────── */
.main-content {
  grid-column: 2;
  grid-row: 2;
  padding: 1.5rem;
  overflow-x: auto; /* allow horizontal scroll on main content if needed */
  min-width: 0;     /* prevent grid blowout */
}

/* ── PAGE HEADER ─────────────────────────────────────────── */
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.page-header-left {}
.page-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.page-subtitle { color: var(--color-text-muted); font-size: 0.875rem; margin-top: 0.2rem; }
.breadcrumb {
  display: flex; align-items: center; gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb-sep { opacity: 0.4; }
.page-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* ── STATS GRID ──────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover { border-color: var(--color-accent); transform: translateY(-2px); }
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--color-accent);
}
.stat-card.accent2::before { background: var(--color-accent2); }
.stat-card.success::before { background: var(--color-success); }
.stat-card.danger::before  { background: var(--color-danger); }
.stat-card.info::before    { background: var(--color-info); }
.stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  font-family: var(--font-heading);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-text);
}
.stat-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
}
.stat-icon {
  position: absolute;
  right: 1.25rem; top: 50%;
  transform: translateY(-50%);
  opacity: 0.08;
  font-size: 3rem;
}

/* ── CARD ────────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.75rem;
  background: var(--color-surface2);
}
.card-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.card-body { padding: 1.25rem; }
.card-footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface2);
}

/* ── GRID LAYOUT ─────────────────────────────────────────── */
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
@media (max-width: 900px) { .grid-3,.grid-4 { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .grid-2,.grid-3,.grid-4 { grid-template-columns: 1fr; } }

/* ── TABLE ───────────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
thead {
  background: var(--color-surface2);
  position: sticky; top: 0; z-index: 1;
}
thead th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  font-weight: 600;
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
}
thead th.sortable { cursor: pointer; user-select: none; }
thead th.sortable:hover { color: var(--color-accent); }
tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--color-surface2); }
tbody td { padding: 0.75rem 1rem; vertical-align: middle; }
.td-mono { font-family: var(--font-mono); font-size: 0.8rem; }
.td-right { text-align: right; }
.td-center { text-align: center; }

/* ── STATUS BADGES ───────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  border-radius: 20px;
  font-size: 0.68rem;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.badge-success   { background: rgba(34,197,94,.15);  color: var(--color-success); border: 1px solid rgba(34,197,94,.3); }
.badge-warning   { background: rgba(234,179,8,.15);  color: var(--color-warning); border: 1px solid rgba(234,179,8,.3); }
.badge-danger    { background: rgba(239,68,68,.15);  color: var(--color-danger);  border: 1px solid rgba(239,68,68,.3); }
.badge-info      { background: rgba(56,189,248,.15); color: var(--color-info);    border: 1px solid rgba(56,189,248,.3); }
.badge-accent    { background: rgba(246,173,58,.15); color: var(--color-accent);  border: 1px solid rgba(246,173,58,.3); }
.badge-muted     { background: var(--color-surface2); color: var(--color-text-muted); border: 1px solid var(--color-border); }
.badge-hazmat    { background: rgba(239,68,68,.2);   color: #ff6b6b; border: 1px solid rgba(239,68,68,.4);
                   animation: hazmat-pulse 2s infinite; }
@keyframes hazmat-pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(239,68,68,0); }
  50%      { box-shadow: 0 0 0 3px rgba(239,68,68,0.2); }
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}
.btn:disabled, .btn.loading { opacity: 0.6; cursor: not-allowed; }
.btn svg { width: 15px; height: 15px; flex-shrink: 0; }

.btn-primary,
a.btn-primary  { background: var(--color-accent); color: var(--color-btn-text); border-color: var(--color-accent); }
.btn-primary:hover:not(:disabled),
a.btn-primary:hover:not(:disabled) { background: var(--color-accent2); border-color: var(--color-accent2); color: var(--color-btn-text); }
.btn-secondary,
a.btn-secondary { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover:not(:disabled),
a.btn-secondary:hover:not(:disabled) { background: var(--color-surface2); border-color: var(--color-accent); color: var(--color-accent); }
.btn-danger   { background: var(--color-danger); color: #fff; border-color: var(--color-danger); }
.btn-danger:hover:not(:disabled) { background: #dc2626; }
.btn-success  { background: var(--color-success); color: #000; border-color: var(--color-success); }
.btn-ghost,
a.btn-ghost    { background: transparent; color: var(--color-text-muted); border-color: transparent; }
.btn-ghost:hover:not(:disabled),
a.btn-ghost:hover:not(:disabled) { background: var(--color-surface2); color: var(--color-text); }
.btn-icon     { padding: 0.45rem; width: 34px; height: 34px; justify-content: center; }
.btn-sm       { padding: 0.3rem 0.7rem; font-size: 0.75rem; }
.btn-lg       { padding: 0.7rem 1.4rem; font-size: 1rem; }

/* ── FORMS ───────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.form-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  font-family: var(--font-heading);
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.form-label .required { color: var(--color-danger); margin-left: 2px; }
.form-control {
  width: 100%;
  padding: 0.55rem 0.75rem;
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(246,173,58,0.12);
}
.form-control::placeholder { color: var(--color-text-muted); opacity: 0.6; }
.form-control.is-invalid { border-color: var(--color-danger); }
.form-control.is-valid   { border-color: var(--color-success); }
textarea.form-control { resize: vertical; min-height: 90px; }
select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
  cursor: pointer;
}
.form-hint { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 0.3rem; }
.form-error { font-size: 0.75rem; color: var(--color-danger); margin-top: 0.3rem; }
.form-check { display: flex; align-items: center; gap: 0.5rem; }
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 16px; height: 16px;
  accent-color: var(--color-accent);
  cursor: pointer;
}
.form-check-label { font-size: 0.875rem; cursor: pointer; }

/* Input group */
.input-group { display: flex; }
.input-group .form-control { border-radius: var(--radius-md) 0 0 var(--radius-md); flex: 1; }
.input-group .btn { border-radius: 0 var(--radius-md) var(--radius-md) 0; border-left: none; }
.input-addon {
  padding: 0.55rem 0.75rem;
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.875rem;
  display: flex; align-items: center;
}
.input-addon:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); border-right: none; }
.input-addon:first-child + .form-control { border-radius: 0 var(--radius-md) var(--radius-md) 0; }

/* Toggle switch */
.toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}
.toggle input { display: none; }
.toggle-track {
  width: 40px; height: 22px;
  background: var(--color-border);
  border-radius: 11px;
  position: relative;
  transition: background var(--transition);
}
.toggle-track::after {
  content: '';
  position: absolute;
  left: 3px; top: 3px;
  width: 16px; height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
}
.toggle input:checked + .toggle-track { background: var(--color-accent); }
.toggle input:checked + .toggle-track::after { transform: translateX(18px); }

/* ── ALERTS ──────────────────────────────────────────────── */
.alert {
  display: flex; align-items: flex-start; gap: 0.75rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}
.alert svg { width: 18px; flex-shrink: 0; margin-top: 1px; }
.alert-success { background: rgba(34,197,94,.1);  border-color: rgba(34,197,94,.3);  color: var(--color-success); }
.alert-warning { background: rgba(234,179,8,.1);  border-color: rgba(234,179,8,.3);  color: var(--color-warning); }
.alert-danger  { background: rgba(239,68,68,.1);  border-color: rgba(239,68,68,.3);  color: var(--color-danger); }
.alert-info    { background: rgba(56,189,248,.1); border-color: rgba(56,189,248,.3); color: var(--color-info); }

/* ── MODALS ──────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 900;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.modal-backdrop.open { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition);
  box-shadow: 0 25px 80px rgba(0,0,0,0.6);
}
.modal-backdrop.open .modal { transform: translateY(0) scale(1); }
.modal-lg { max-width: 820px; }
.modal-xl { max-width: 1100px; }
.modal-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--color-surface2);
}
.modal-title { font-family: var(--font-heading); font-size: 1rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.modal-close {
  background: none; border: none;
  color: var(--color-text-muted);
  cursor: pointer; padding: 0.25rem;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--color-danger); }
.modal-body { padding: 1.25rem; }
.modal-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--color-border);
  display: flex; justify-content: flex-end; gap: 0.5rem;
  background: var(--color-surface2);
}

/* ── TABS ────────────────────────────────────────────────── */
.tabs { border-bottom: 1px solid var(--color-border); display: flex; gap: 0; margin-bottom: 1.5rem; overflow-x: auto; }
.tab-btn {
  padding: 0.75rem 1.25rem;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: none; border: none;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  transition: color var(--transition);
}
.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.tab-btn:hover { color: var(--color-text); }
.tab-btn.active { color: var(--color-accent); }
.tab-btn.active::after { transform: scaleX(1); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── PAGINATION ──────────────────────────────────────────── */
.pagination {
  display: flex; align-items: center; gap: 0.35rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.page-btn {
  min-width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 0.82rem;
  font-family: var(--font-heading);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  padding: 0 0.5rem;
}
.page-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.page-btn.active { background: var(--color-accent); border-color: var(--color-accent); color: #000; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── TOAST NOTIFICATIONS ─────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem; right: 1.5rem;
  z-index: 9999;
  display: flex; flex-direction: column; gap: 0.5rem;
  pointer-events: none;
}
.toast {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  font-size: 0.875rem;
  max-width: 360px;
  pointer-events: auto;
  animation: toast-in 0.25s ease forwards;
  border-left: 3px solid var(--color-accent);
}
.toast.toast-success { border-left-color: var(--color-success); }
.toast.toast-error   { border-left-color: var(--color-danger); }
.toast.toast-warning { border-left-color: var(--color-warning); }
.toast.toast-info    { border-left-color: var(--color-info); }
.toast-out { animation: toast-out 0.25s ease forwards; }
@keyframes toast-in  { from { opacity:0; transform: translateX(20px); } to { opacity:1; transform: none; } }
@keyframes toast-out { from { opacity:1; transform: none; } to { opacity:0; transform: translateX(20px); } }

/* ── PUBLIC / MARKETING PAGES ────────────────────────────── */
.public-layout { display: flex; flex-direction: column; min-height: 100vh; }
.public-nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(13,15,18,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 0 2rem;
  height: 70px;
  display: flex; align-items: center; gap: 2rem;
}
[data-theme="light"] .public-nav { background: rgba(255,255,255,0.92); }
.public-nav-links {
  display: flex; gap: 0.25rem;
  margin-left: auto;
}
.public-nav-link {
  padding: 0.4rem 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  text-decoration: none;
}
.public-nav-link:hover { color: var(--color-text); background: var(--color-surface2); }
.public-nav-link.active { color: var(--color-accent); }

.hero {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg) 60%);
  border-bottom: 1px solid var(--color-border);
  padding: 5rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, transparent, transparent 60px, rgba(246,173,58,0.03) 60px, rgba(246,173,58,0.03) 61px),
    repeating-linear-gradient(0deg, transparent, transparent 60px, rgba(246,173,58,0.03) 60px, rgba(246,173,58,0.03) 61px);
  pointer-events: none;
}
.hero-inner { max-width: 1200px; margin: 0 auto; position: relative; }
.hero-eyebrow {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.0;
  margin-bottom: 1.25rem;
}
.hero-title span { color: var(--color-accent); }
.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 2rem;
}
.hero-ctas { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.hero-meta {
  display: flex; gap: 2.5rem; margin-top: 3rem; flex-wrap: wrap;
}
.hero-meta-item .meta-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
}
.hero-meta-item .meta-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section { padding: 4rem 2rem; }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-title {
  font-size: clamp(1.6rem,3vw,2.4rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}
.section-subtitle {
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  max-width: 540px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition);
}
.feature-card:hover { border-color: var(--color-accent); transform: translateY(-3px); }
.feature-icon {
  width: 46px; height: 46px;
  background: rgba(246,173,58,0.12);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent);
  margin-bottom: 1rem;
}
.feature-title { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.feature-desc { font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.6; }

.public-footer {
  margin-top: auto;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 2rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* ── MISC UTILITIES ──────────────────────────────────────── */
.text-muted   { color: var(--color-text-muted); }
.text-accent  { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-danger  { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-info    { color: var(--color-info); }
.text-sm   { font-size: 0.82rem; }
.text-xs   { font-size: 0.72rem; }
.text-mono { font-family: var(--font-mono); }
.text-upper { text-transform: uppercase; letter-spacing: 0.08em; }
.fw-bold { font-weight: 700; }
.fw-600  { font-weight: 600; }
.d-flex  { display: flex; }
.align-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.ml-auto { margin-left: auto; }
.w-full { width: 100%; }
.sr-only { position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0; }

.separator { height: 1px; background: var(--color-border); margin: 1rem 0; }
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-muted);
}
.empty-state-icon { font-size: 3rem; margin-bottom: 0.75rem; opacity: 0.3; }
.empty-state-title { font-family: var(--font-heading); font-size: 1.1rem; margin-bottom: 0.4rem; }

/* Loading spinner */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
.spinner-lg { width: 36px; height: 36px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── RESPONSIVE ──────────────────────────────────────────── */
.sidebar-toggle {
  display: none;
  background: none; border: none;
  color: var(--color-text); cursor: pointer; padding: 0.25rem;
}

@media (max-width: 1024px) {
  :root { --sidebar-w: 220px; }
}
@media (max-width: 768px) {
  .sidebar-toggle { display: flex; align-items: center; }
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: var(--topbar-h) 1fr;
  }
  .topbar-brand { width: auto; }
  .topbar-search { display: none; }
  .sidebar {
    position: fixed;
    left: 0; top: var(--topbar-h);
    height: calc(100vh - var(--topbar-h));
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    z-index: 300;
    width: var(--sidebar-w);
  }
  .sidebar.open { transform: translateX(0); }
  .main-content {
    grid-column: 1;
    padding: .875rem;
    overflow-x: hidden; /* on mobile, clip main — tables scroll internally */
  }

  /* ── Page header ── */
  .page-header { flex-direction: column; align-items: flex-start; gap: .5rem; }
  .page-actions { width: 100%; display: flex; flex-wrap: wrap; gap: .5rem; }
  .page-actions .btn { flex: 1; min-width: 120px; text-align: center; justify-content: center; }
  .page-title { font-size: 1.25rem; }
  .page-subtitle { font-size: .78rem; }

  /* ── Cards ── */
  .card { border-radius: var(--radius-md); }
  .card-body { padding: .875rem; }
  .card-header { padding: .75rem .875rem; }
  .card-footer { padding: .75rem .875rem; flex-wrap: wrap; gap: .5rem; }

  /* ── Forms ── */
  .form-row { flex-direction: column; gap: .75rem; }
  .form-row .form-group { min-width: 0; width: 100%; }
  .form-group { margin-bottom: .75rem; }

  /* ── Tables — horizontal scroll inside wrapper ── */
  .table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table { min-width: 520px; }
  thead th, tbody td { padding: .6rem .65rem; font-size: .8rem; }

  /* ── Grids ── */
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }

  /* ── Stat/KPI cards ── */
  .stat-card { padding: .875rem; }
  .stat-value { font-size: 1.5rem; }

  /* ── Modals ── */
  .modal {
    width: calc(100vw - 1.5rem);
    max-width: 100%;
    max-height: 92vh;
    margin: auto;
    border-radius: var(--radius-lg);
  }
  .modal-lg, .modal-xl { max-width: calc(100vw - 1.5rem); }
  .modal-footer { flex-wrap: wrap; gap: .5rem; }
  .modal-footer .btn { flex: 1; min-width: 100px; justify-content: center; }

  /* ── Tabs ── */
  .tabs { gap: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; flex-wrap: nowrap; }
  .tab-btn { white-space: nowrap; font-size: .8rem; padding: .5rem .75rem; }

  /* ── Topbar clock — hide date on very small screens ── */
  #topbar-date { display: none; }

  /* ── Breadcrumb ── */
  .breadcrumb { font-size: .75rem; }

  /* ── Warehouse list/detail panel ── */
  .wh-detail-layout {
    grid-template-columns: 1fr !important;
  }
  /* When warehouse selected: hide list, show detail */
  .wh-detail-layout[data-selected="1"] .wh-list-col { display: none; }
  .wh-detail-layout[data-selected="1"] .wh-back-btn { display: inline-flex !important; }
  /* When no warehouse selected: hide detail placeholder */
  .wh-detail-layout[data-selected="0"] .wh-detail-col { display: none; }

  /* ── Pagination ── */
  .pagination { flex-wrap: wrap; gap: .25rem; }

  /* ── Buttons in tight spaces ── */
  .btn-group { flex-wrap: wrap; }
  .filter-bar { flex-wrap: wrap; }
  .filter-bar .form-group { min-width: 140px; flex: 1; }

  /* Public nav */
  .public-nav { padding: 0 1rem; gap: 1rem; }
  .public-nav-links { display: none; }
  .hero { padding: 3rem 1rem 2.5rem; }
  .section { padding: 2.5rem 1rem; }
}

/* ── Extra-small phones (portrait) ── */
@media (max-width: 480px) {
  .main-content { padding: .625rem; }
  .card-body { padding: .75rem; }
  .page-actions .btn { font-size: .78rem; padding: .4rem .75rem; }
  #topbar-time { font-size: .75rem; }
  .topbar { padding: 0 .75rem; }
  table { min-width: 420px; }
  thead th, tbody td { padding: .5rem .5rem; font-size: .75rem; }
}

/* ── PRINT ───────────────────────────────────────────────── */
@media print {
  .sidebar, .topbar, .btn, .page-actions { display: none !important; }
  .main-content { padding: 0; }
  .app-shell { display: block; }
}

/* ── THEME EDITOR SPECIFIC ───────────────────────────────── */
.color-swatch {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-border);
  cursor: pointer;
  flex-shrink: 0;
}
.theme-preview {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 200px;
  background: var(--preview-bg, #0d0f12);
}

/* ── CMS EDITOR ──────────────────────────────────────────── */
.editor-toolbar {
  display: flex; flex-wrap: wrap; gap: 0.25rem;
  padding: 0.5rem;
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.editor-toolbar .btn { padding: 0.3rem 0.5rem; min-width: 32px; }
.editor-area {
  width: 100%;
  min-height: 300px;
  padding: 1rem;
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  resize: vertical;
}
.editor-area:focus { border-color: var(--color-accent); }

/* Inventory location map */
.location-grid {
  display: grid;
  gap: 0.25rem;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
}
.location-cell {
  aspect-ratio: 1;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 0.6rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  padding: 0.25rem;
  gap: 2px;
}
.location-cell:hover { border-color: var(--color-accent); background: rgba(246,173,58,0.08); }
.location-cell.occupied  { background: rgba(56,189,248,0.1); border-color: rgba(56,189,248,0.4); }
.location-cell.full      { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.4); }
.location-cell.hazmat    { background: rgba(239,68,68,0.15); border-color: var(--color-danger); }
.location-cell.selected  { background: rgba(246,173,58,0.15); border-color: var(--color-accent); }

/* Progress bar */
.progress { height: 6px; background: var(--color-border); border-radius: 3px; overflow: hidden; }
.progress-bar {
  height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent2));
  transition: width 0.4s ease;
}
.progress-bar.success { background: var(--color-success); }
.progress-bar.danger  { background: var(--color-danger); }