/* ============================================================
   INVENTRA — Global Stylesheet
   Professional light theme, Inter font
   ============================================================ */

/* ── Google Font import ──────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Custom Properties (overridden by PHP inline block) ──── */
:root {
  --color-primary:   #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-primary-light: #EFF6FF;
  --color-secondary: #0F172A;
  --color-accent:    #0EA5E9;
  --color-success:   #16A34A;
  --color-warning:   #CA8A04;
  --color-danger:    #DC2626;
  --color-info:      #0891B2;

  --color-bg:        #F8FAFC;
  --color-surface:   #FFFFFF;
  --color-surface-2: #F1F5F9;
  --color-text:      #1E293B;
  --color-text-2:    #475569;
  --color-muted:     #64748B;
  --color-border:    #E2E8F0;
  --color-border-2:  #CBD5E1;

  --font-family:     'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:       'JetBrains Mono', monospace;
  --font-size-xs:    0.75rem;
  --font-size-sm:    0.875rem;
  --font-size-base:  1rem;
  --font-size-lg:    1.125rem;
  --font-size-xl:    1.25rem;
  --font-size-2xl:   1.5rem;
  --font-size-3xl:   1.875rem;
  --font-size-4xl:   2.25rem;

  --radius-sm:  4px;
  --radius:     8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --radius-full: 9999px;

  --shadow-sm:  0 1px 2px rgba(0,0,0,.05);
  --shadow:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 6px rgba(0,0,0,.06), 0 2px 4px rgba(0,0,0,.04);
  --shadow-lg:  0 10px 15px rgba(0,0,0,.07), 0 4px 6px rgba(0,0,0,.04);
  --shadow-xl:  0 20px 25px rgba(0,0,0,.08), 0 10px 10px rgba(0,0,0,.04);

  --sidebar-width: 256px;
  --topbar-height: 60px;
  --transition: 150ms ease;
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }

/* ── Typography ──────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-secondary);
}
h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
p  { color: var(--color-text-2); }
small { font-size: var(--font-size-sm); color: var(--color-muted); }

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

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-secondary);
  color: #CBD5E1;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform var(--transition);
  overflow-y: auto;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  min-height: var(--topbar-height);
}
.sidebar-brand img {
  height: 32px;
  width: auto;
  object-fit: contain;
  border-radius: var(--radius-sm);
}
.sidebar-brand .brand-name {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-section {
  padding: 8px 0;
}
.sidebar-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #475569;
  padding: 8px 20px 4px;
}
.sidebar-nav { flex: 1; }
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: #94A3B8;
  border-left: 3px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
}
.sidebar-link svg { flex-shrink: 0; opacity: .7; }
.sidebar-link:hover {
  color: #FFFFFF;
  background: rgba(255,255,255,.05);
  border-left-color: var(--color-primary);
  text-decoration: none;
}
.sidebar-link.active {
  color: #FFFFFF;
  background: rgba(37,99,235,.2);
  border-left-color: var(--color-primary);
}
.sidebar-link.active svg { opacity: 1; }
.sidebar-footer {
  padding: 12px 20px;
  border-top: 1px solid rgba(255,255,255,.07);
  font-size: var(--font-size-xs);
  color: #475569;
}

/* ── Main Content ────────────────────────────────────────────── */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* ── Topbar ──────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.topbar-left { flex: 1; }
.topbar-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-secondary);
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.topbar-user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
}
.topbar-avatar {
  width: 32px; height: 32px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
}

/* ── Page Body ───────────────────────────────────────────────── */
.page-body {
  padding: 28px 28px;
  flex: 1;
}
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.page-header h1 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
}
.page-header p {
  font-size: var(--font-size-sm);
  margin-top: 2px;
}
.page-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}
.card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-secondary);
}
.card-body { padding: 20px; }
.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-2);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ── Stat Cards ──────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat-card-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}
.stat-card-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-secondary);
  line-height: 1;
}
.stat-card-label {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  font-weight: 500;
}
.stat-card-delta {
  font-size: var(--font-size-xs);
  font-weight: 600;
}
.delta-up   { color: var(--color-success); }
.delta-down { color: var(--color-danger); }

/* ── Grid helpers ────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-col-2 { grid-column: span 2; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
  text-decoration: none;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary  { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover  { background: var(--color-primary-dark); border-color: var(--color-primary-dark); text-decoration: none; color: #fff; }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-2); }
.btn-secondary:hover { background: var(--color-surface-2); text-decoration: none; color: var(--color-text); }
.btn-success  { background: var(--color-success); color: #fff; border-color: var(--color-success); }
.btn-success:hover  { background: #15803D; text-decoration: none; color: #fff; }
.btn-danger   { background: var(--color-danger); color: #fff; border-color: var(--color-danger); }
.btn-danger:hover   { background: #B91C1C; text-decoration: none; color: #fff; }
.btn-warning  { background: var(--color-warning); color: #fff; border-color: var(--color-warning); }
.btn-ghost    { background: transparent; color: var(--color-text-2); border-color: transparent; }
.btn-ghost:hover { background: var(--color-surface-2); color: var(--color-text); text-decoration: none; }
.btn-sm { padding: 5px 12px; font-size: var(--font-size-xs); }
.btn-lg { padding: 11px 22px; font-size: var(--font-size-base); }
.btn-icon { padding: 7px; border-radius: var(--radius); }

/* ── Forms ───────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-label span.required { color: var(--color-danger); margin-left: 2px; }
.form-control {
  display: block;
  width: 100%;
  padding: 8px 12px;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  line-height: 1.5;
}
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-control::placeholder { color: var(--color-muted); }
.form-control:disabled { background: var(--color-surface-2); opacity: .7; cursor: not-allowed; }
.form-hint { font-size: var(--font-size-xs); color: var(--color-muted); margin-top: 4px; }
.form-error{ font-size: var(--font-size-xs); color: var(--color-danger); margin-top: 4px; }
textarea.form-control { resize: vertical; min-height: 88px; }
select.form-control { appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%2364748B' d='M7 7l3-3 3 3m0 6l-3 3-3-3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  padding-right: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.form-check { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.form-check input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--color-primary); cursor: pointer; }

/* ── Tables ──────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
table.data-table thead th {
  background: var(--color-surface-2);
  padding: 10px 14px;
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
table.data-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
table.data-table tbody tr:last-child { border-bottom: none; }
table.data-table tbody tr:hover { background: var(--color-surface-2); }
table.data-table tbody td {
  padding: 12px 14px;
  color: var(--color-text);
  vertical-align: middle;
}
table.data-table tbody td.muted { color: var(--color-muted); }
table.data-table .td-num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--font-mono); }
table.data-table tfoot td {
  padding: 10px 14px;
  font-weight: 700;
  background: var(--color-surface-2);
  border-top: 2px solid var(--color-border);
  font-variant-numeric: tabular-nums;
}

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: .02em;
}
.badge-blue    { background: #EFF6FF; color: #1D4ED8; }
.badge-green   { background: #F0FDF4; color: #15803D; }
.badge-red     { background: #FEF2F2; color: #B91C1C; }
.badge-yellow  { background: #FEFCE8; color: #A16207; }
.badge-gray    { background: var(--color-surface-2); color: var(--color-muted); }
.badge-orange  { background: #FFF7ED; color: #C2410C; }

/* ── Alerts ──────────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  margin-bottom: 16px;
}
.alert svg { flex-shrink: 0; margin-top: 1px; }
.alert-success { background: #F0FDF4; border: 1px solid #BBF7D0; color: #15803D; }
.alert-error   { background: #FEF2F2; border: 1px solid #FECACA; color: #B91C1C; }
.alert-warning { background: #FEFCE8; border: 1px solid #FDE68A; color: #A16207; }
.alert-info    { background: #F0F9FF; border: 1px solid #BAE6FD; color: #0369A1; }

/* ── Modals ──────────────────────────────────────────────────── */
.modal-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(15,23,42,.45);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modal-in .15s ease;
}
.modal-lg { max-width: 780px; }
.modal-xl { max-width: 960px; }
@keyframes modal-in {
  from { opacity: 0; transform: scale(.97) translateY(6px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--color-border);
}
.modal-title { font-size: var(--font-size-lg); font-weight: 700; color: var(--color-secondary); }
.modal-close {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: var(--radius);
  border: none; background: transparent;
  color: var(--color-muted);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 18px;
}
.modal-close:hover { background: var(--color-surface-2); color: var(--color-text); }
.modal-body { padding: 22px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 22px;
  border-top: 1px solid var(--color-border);
}

/* ── Tabs ────────────────────────────────────────────────────── */
.tab-nav {
  display: flex;
  border-bottom: 2px solid var(--color-border);
  gap: 0;
  margin-bottom: 20px;
}
.tab-link {
  padding: 10px 16px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.tab-link:hover  { color: var(--color-primary); text-decoration: none; }
.tab-link.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* ── Search/Filter bar ───────────────────────────────────────── */
.filter-bar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.search-wrap {
  position: relative;
  flex: 1;
  min-width: 180px;
}
.search-wrap svg {
  position: absolute;
  left: 10px; top: 50%; transform: translateY(-50%);
  color: var(--color-muted);
  pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 8px 12px 8px 34px;
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

/* ── Empty state ─────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
  color: var(--color-muted);
}
.empty-state svg { margin-bottom: 16px; opacity: .4; }
.empty-state h3  { font-size: var(--font-size-lg); font-weight: 600; margin-bottom: 6px; }
.empty-state p   { font-size: var(--font-size-sm); }

/* ── Divider ─────────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--color-border); margin: 16px 0; }

/* ── Utility classes ─────────────────────────────────────────── */
.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.items-center{ align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1  { gap: 4px; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 12px; }
.gap-4  { gap: 16px; }
.gap-6  { gap: 24px; }
.mt-1   { margin-top: 4px; }
.mt-2   { margin-top: 8px; }
.mt-3   { margin-top: 12px; }
.mt-4   { margin-top: 16px; }
.mt-6   { margin-top: 24px; }
.mb-2   { margin-bottom: 8px; }
.mb-4   { margin-bottom: 16px; }
.mb-6   { margin-bottom: 24px; }
.text-sm    { font-size: var(--font-size-sm); }
.text-xs    { font-size: var(--font-size-xs); }
.text-lg    { font-size: var(--font-size-lg); }
.text-muted { color: var(--color-muted); }
.text-right { text-align: right; }
.text-center{ text-align: center; }
.font-bold  { font-weight: 700; }
.font-semi  { font-weight: 600; }
.font-mono  { font-family: var(--font-mono); }
.text-success { color: var(--color-success); }
.text-danger  { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.w-full  { width: 100%; }
.hidden  { display: none !important; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Auth / Public pages ─────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 50%, #F0F9FF 100%);
  padding: 24px;
}
.auth-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 420px;
  padding: 40px;
}
.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}
.auth-logo img { height: 38px; }
.auth-logo span {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-secondary);
  letter-spacing: -0.03em;
}
.auth-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: 4px;
}
.auth-sub {
  text-align: center;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  margin-bottom: 28px;
}
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
}
.auth-divider span {
  color: var(--color-muted);
  font-size: var(--font-size-xs);
  white-space: nowrap;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--color-border);
}

/* ── Pagination ──────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
}
.page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  color: var(--color-text-2);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.page-link:hover  { background: var(--color-surface-2); text-decoration: none; }
.page-link.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.page-link:disabled { opacity: .4; cursor: not-allowed; }

/* ── Progress bar ────────────────────────────────────────────── */
.progress {
  height: 6px;
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  transition: width .4s ease;
}

/* ── Color swatch ────────────────────────────────────────────── */
.color-dot {
  width: 10px; height: 10px;
  border-radius: var(--radius-full);
  display: inline-block;
  flex-shrink: 0;
}

/* ── Dropdown ────────────────────────────────────────────────── */
.dropdown { position: relative; display: inline-block; }
.dropdown-menu {
  position: absolute;
  right: 0; top: calc(100% + 6px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  z-index: 300;
  display: none;
  overflow: hidden;
}
.dropdown-menu.open { display: block; animation: modal-in .12s ease; }
.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--transition);
  text-decoration: none;
}
.dropdown-item:hover { background: var(--color-surface-2); text-decoration: none; }
.dropdown-item.danger { color: var(--color-danger); }
.dropdown-divider { border-top: 1px solid var(--color-border); margin: 4px 0; }

/* ── Tooltip ─────────────────────────────────────────────────── */
[data-tip] { position: relative; }
[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%; transform: translateX(-50%);
  background: var(--color-secondary);
  color: #fff;
  font-size: var(--font-size-xs);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity .15s;
}
[data-tip]:hover::after { opacity: 1; }

/* ── Loading spinner ─────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── ROI Calculator specific ─────────────────────────────────── */
.roi-result-card {
  background: linear-gradient(135deg, var(--color-primary-light), #F0F9FF);
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-lg);
  padding: 20px;
}
.roi-metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.roi-metric-value {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
}
.roi-metric-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-muted);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --sidebar-width: 0px; }
  .sidebar { transform: translateX(-256px); }
  .sidebar.open { transform: translateX(0); width: 256px; }
  .main-content { margin-left: 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .page-body { padding: 16px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .page-header { flex-direction: column; }
}
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 28px 20px; }
}