/* ============================================================================
   The PaperMaster Company — Operations Platform · Design System (theme.css)
   POLISH pass. Identity preserved exactly: dark navy chrome, amber primary,
   white cards on light neutral, navy headings. Tokens only.
   ============================================================================ */

:root {
  /* Brand — navy */
  --navy-900: #16283F;
  --navy-800: #1E3A5F;
  --navy-700: #27476E;
  --navy-600: #33557F;
  --navy-100: #E8EEF5;

  /* Brand — amber */
  --amber-500: #F5A623;
  --amber-600: #E0951A;
  --amber-100: #FDF3DF;
  --amber-text: #9A5E00;   /* darker amber for text/links on white (WCAG) */

  /* Neutrals */
  --bg-page: #F4F6F9;
  --bg-card: #FFFFFF;
  --border:  #E3E8EF;
  --border-strong: #CED6E0;
  --text-heading: #1E3A5F;
  --text-body:    #3D4C5E;
  --text-secondary: #5C6B7D;
  --text-muted:   #7A8699;

  /* On navy */
  --on-navy:        rgba(255,255,255,0.75);
  --on-navy-strong: #FFFFFF;
  --on-navy-muted:  rgba(255,255,255,0.45);
  --navy-border:    rgba(255,255,255,0.08);

  /* Semantic */
  --success: #2E9E5B; --success-bg: #E6F6EC;
  --info:    #2F6FB8; --info-bg:    #E7F0FA;
  --warning: #C77D0A; --warning-bg: #FDF3DF;
  --danger:  #C94A3B; --danger-bg:  #FBEAE8;

  /* Depth */
  --shadow-sm: 0 1px 2px rgba(22,40,63,.06);
  --shadow-md: 0 4px 12px rgba(22,40,63,.08);
  --shadow-lg: 0 8px 24px rgba(22,40,63,.12);

  /* Shape & motion */
  --radius-sm: 6px; --radius-md: 10px; --radius-lg: 14px;
  --transition: 160ms cubic-bezier(.4,0,.2,1);

  /* Spacing (4px scale) */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px;
  --space-4: 16px; --space-5: 24px; --space-6: 32px; --space-7: 48px;

  /* Type scale */
  --fs-title: 28px; --fs-card: 18px; --fs-body: 14px; --fs-meta: 13px; --fs-label: 11px;

  /* Fonts */
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, 'JetBrains Mono', 'SFMono-Regular', Menlo, monospace;

  --sidebar-width: 240px;
  --topbar-height: 56px;

  /* ---- Legacy aliases (templates may reference these inline) ---- */
  --navy: var(--navy-800); --navy-raised: var(--navy-700); --on-amber: #FFFFFF;
  --primary: var(--navy-800); --primary-dark: var(--navy-900);
  --accent: var(--amber-500); --accent-hover: var(--amber-600);
  --amber: var(--amber-500); --amber-hover: var(--amber-600); --amber-soft: var(--amber-100);
  --heading: var(--text-heading);
  --bg: var(--bg-page); --surface: var(--bg-card); --white: #FFFFFF;
  --text: var(--text-body); --text-light: var(--text-secondary);
  --success-soft: var(--success-bg); --danger-soft: var(--danger-bg);
  --warning-soft: var(--warning-bg); --admin-blue: var(--info); --admin-blue-soft: var(--info-bg);
  --info-color: var(--info);
  --radius: var(--radius-lg); --shadow: var(--shadow-sm); --shadow-lg-legacy: var(--shadow-lg);
  --font-heading: var(--font);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font); font-size: var(--fs-body); line-height: 1.6;
  color: var(--text-body); background: var(--bg-page); min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--amber-text); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--amber-600); }
code, pre, .mono, .text-mono { font-family: var(--font-mono); }
:focus-visible { outline: 2px solid var(--amber-500); outline-offset: 2px; border-radius: var(--radius-sm); }

/* ============================================================================
   APP SHELL — navy sidebar
   ============================================================================ */
.nav-sidebar {
  position: fixed; top: 0; left: 0; width: var(--sidebar-width); height: 100vh;
  background: var(--navy-800); border-right: 1px solid var(--navy-border);
  padding: var(--space-2) 0 var(--space-5);
  overflow-y: auto; z-index: 200;
  display: flex; flex-direction: column;
  transition: transform var(--transition);
  scrollbar-width: thin; scrollbar-color: transparent transparent;
}
.nav-sidebar:hover { scrollbar-color: var(--navy-600) transparent; }
.nav-sidebar::-webkit-scrollbar { width: 6px; }
.nav-sidebar::-webkit-scrollbar-thumb { background: transparent; border-radius: 999px; }
.nav-sidebar:hover::-webkit-scrollbar-thumb { background: var(--navy-600); }

/* Brand + monogram */
.sidebar-brand {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4) var(--space-5) var(--space-6);
  color: var(--on-navy-strong);
}
.sidebar-brand:hover { color: var(--on-navy-strong); }
.brand-mark {
  flex-shrink: 0; width: 34px; height: 34px; border-radius: var(--radius-sm);
  background: var(--amber-500); color: #241A00;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; letter-spacing: -0.02em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.sidebar-brand-name { font-size: 15px; font-weight: 600; color: var(--on-navy-strong); }
.sidebar-brand-sub  { font-size: 12px; color: var(--on-navy-muted); margin-top: 2px; line-height: 1.35; }

.sidebar-nav { display: flex; flex-direction: column; padding: 0 var(--space-3); }
.nav-group { display: flex; flex-direction: column; gap: 2px; margin-top: var(--space-5); padding-top: var(--space-5); border-top: 1px solid var(--navy-border); }
.nav-group:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.nav-group-label {
  font-size: var(--fs-label); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--on-navy-muted); padding: 0 var(--space-3) var(--space-2);
}
.nav-item {
  display: flex; align-items: center; gap: var(--space-3); position: relative;
  font-size: var(--fs-body); color: var(--on-navy);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
}
.nav-item [data-lucide], .nav-item svg { width: 18px; height: 18px; flex-shrink: 0; color: rgba(255,255,255,.65); transition: color var(--transition); }
.nav-item:hover { background: var(--navy-700); color: var(--on-navy-strong); }
.nav-item:hover [data-lucide], .nav-item:hover svg { color: var(--on-navy-strong); }
.nav-item.active { background: var(--navy-700); color: var(--on-navy-strong); font-weight: 600; }
.nav-item.active::before {
  content: ""; position: absolute; left: -1px; top: 50%; transform: translateY(-50%);
  height: 70%; width: 3px; border-radius: 0 3px 3px 0; background: var(--amber-500);
}
.nav-item.active [data-lucide], .nav-item.active svg { color: var(--amber-500); }

/* Topbar (navy) */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--topbar-height);
  background: var(--navy-800); border-bottom: 1px solid var(--navy-border); z-index: 150;
}
.topbar.with-nav { left: var(--sidebar-width); }
.topbar-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 var(--space-6); gap: var(--space-3); }
.topbar-right { display: flex; align-items: center; gap: var(--space-3); margin-left: auto; }

/* User chip + avatar */
.user-chip { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--on-navy); font-size: var(--fs-meta); padding: var(--space-1) var(--space-2); border-radius: 999px; transition: background-color var(--transition), color var(--transition); }
.user-chip:hover { background: var(--navy-700); color: var(--on-navy-strong); }
.user-avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--amber-500); color: #241A00; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }
.user-name { font-weight: 500; }

/* Logged-out brand in topbar */
.brand { color: var(--on-navy-strong); }
.brand h1 { font-size: var(--fs-card); font-weight: 600; line-height: 1.1; color: var(--on-navy-strong); margin: 0; }
.brand small { font-size: 12px; color: var(--on-navy-muted); display: block; }

.mobile-menu-btn { display: none; background: none; border: none; color: var(--on-navy-strong); font-size: 20px; line-height: 1; cursor: pointer; padding: var(--space-1) var(--space-2); border-radius: var(--radius-sm); }
.mobile-menu-btn:hover { background: var(--navy-700); }

/* Content */
main.content { margin-top: var(--topbar-height); padding: var(--space-6); min-height: calc(100vh - var(--topbar-height)); }
main.content.with-nav { margin-left: var(--sidebar-width); }
main.content > * { max-width: 1440px; margin-left: auto; margin-right: auto; }
.page-fade { animation: pageFade 200ms ease both; }
@keyframes pageFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.app-footer { border-top: 1px solid var(--border); text-align: center; padding: var(--space-5); color: var(--text-muted); font-size: var(--fs-meta); background: var(--bg-page); }
.app-footer.with-nav { margin-left: var(--sidebar-width); }

/* ============================================================================
   PAGE HEADER — with signature amber underline accent
   ============================================================================ */
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-5); flex-wrap: wrap; }
.page-header-text { min-width: 0; }
.page-title { font-size: var(--fs-title); font-weight: 700; color: var(--text-heading); line-height: 1.2; letter-spacing: -0.01em; }
.page-title::after { content: ""; display: block; width: 48px; height: 3px; border-radius: 999px; background: var(--amber-500); margin-top: var(--space-3); }
.page-desc  { font-size: 15px; color: var(--text-muted); margin-top: var(--space-2); }
.page-header .page-actions { display: flex; gap: var(--space-2); align-items: center; flex-shrink: 0; }

/* Headings */
h1, h2, h3, h4, h5, h6 { font-family: var(--font); color: var(--text-heading); font-weight: 600; line-height: 1.25; }
h1 { font-size: var(--fs-title); font-weight: 700; margin-bottom: var(--space-4); }
h2 { font-size: 20px; margin-bottom: var(--space-3); }
h3 { font-size: var(--fs-card); margin-bottom: var(--space-2); }
h4, h5, h6 { font-size: var(--fs-body); margin-bottom: var(--space-2); }
p { margin-bottom: var(--space-3); }
p:last-child { margin-bottom: 0; }
.section-label { font-size: var(--fs-label); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }

/* ============================================================================
   CARDS
   ============================================================================ */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: var(--space-5); margin-bottom: var(--space-5); }
.card > :last-child { margin-bottom: 0; }
.card-title { font-size: var(--fs-card); font-weight: 600; color: var(--text-heading); }
.card-desc  { font-size: var(--fs-body); color: var(--text-secondary); margin-top: var(--space-2); margin-bottom: var(--space-4); }
.card h3 { font-size: var(--fs-card); margin-bottom: var(--space-2); }
.card p  { color: var(--text-secondary); font-size: var(--fs-body); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-5); align-items: stretch; }
@media (min-width: 1200px) { .card-grid { grid-template-columns: repeat(4, 1fr); } }
.card.card-flush { padding: 0; overflow: hidden; }

/* Dashboard cards */
.dash-card { display: flex; flex-direction: column; transition: box-shadow var(--transition), transform var(--transition); }
.dash-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.dash-card-icon { width: 48px; height: 48px; border-radius: 50%; background: var(--navy-100); color: var(--navy-800); display: inline-flex; align-items: center; justify-content: center; margin-bottom: var(--space-4); }
.dash-card-icon [data-lucide], .dash-card-icon svg { width: 24px; height: 24px; stroke-width: 2; }
.dash-card .card-title { font-size: var(--fs-card); font-weight: 600; color: var(--text-heading); }
.dash-card .card-desc { color: var(--text-secondary); font-size: var(--fs-meta); margin-top: var(--space-1); }
.dash-action { margin-top: auto; padding-top: var(--space-4); display: inline-flex; align-items: center; gap: var(--space-1); color: var(--amber-text); font-size: var(--fs-body); font-weight: 600; align-self: flex-start; }
.dash-action:hover { color: var(--amber-600); gap: var(--space-2); }

/* ============================================================================
   BUTTONS
   ============================================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  height: 38px; padding: 0 18px; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: var(--fs-body); font-weight: 500; line-height: 1;
  white-space: nowrap; cursor: pointer; text-decoration: none;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  background: var(--bg-card); border: 1px solid var(--border); color: var(--text-body);
}
.btn:hover:not(:disabled) { background: var(--navy-100); border-color: var(--navy-600); }
.btn:disabled, .btn.disabled, .btn[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; box-shadow: none; transform: none; }

.btn-primary { background: var(--amber-500); border-color: var(--amber-500); color: #fff; font-weight: 600; box-shadow: var(--shadow-sm); }
.btn-primary:hover:not(:disabled) { background: var(--amber-600); border-color: var(--amber-600); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary:active:not(:disabled) { transform: translateY(0); }

.btn-secondary { background: var(--bg-card); border: 1px solid var(--border); color: var(--text-body); }
.btn-secondary:hover:not(:disabled) { background: var(--navy-100); border-color: var(--navy-600); }

.btn-ghost, .btn-logout { background: transparent; border: 1px solid transparent; color: var(--text-secondary); }
.btn-ghost:hover:not(:disabled), .btn-logout:hover:not(:disabled) { background: var(--navy-100); color: var(--text-heading); }

/* Outline-amber */
.btn-outline { background: transparent; border: 1px solid var(--amber-500); color: var(--amber-text); }
.btn-outline:hover:not(:disabled) { background: var(--amber-500); border-color: var(--amber-500); color: #fff; }

/* Destructive */
.btn-danger, .btn-outline-danger { background: var(--bg-card); border: 1px solid var(--danger); color: var(--danger); }
.btn-danger:hover:not(:disabled), .btn-outline-danger:hover:not(:disabled) { background: var(--danger-bg); }

.btn-sm { height: 32px; padding: 0 var(--space-3); font-size: var(--fs-meta); }
.btn-block { width: 100%; }
.btn [data-lucide], .btn svg { width: 16px; height: 16px; }

/* Ghost-on-navy (topbar logout) */
.topbar .btn-logout, .topbar .btn-ghost { color: var(--on-navy-strong); background: transparent; border: 1px solid rgba(255,255,255,.30); }
.topbar .btn-logout:hover, .topbar .btn-ghost:hover { background: rgba(255,255,255,.12); color: var(--on-navy-strong); }

/* Inline button spinner */
.btn .spinner { width: 15px; height: 15px; border-width: 2px; }

/* ============================================================================
   FORMS
   ============================================================================ */
label { display: block; font-size: var(--fs-meta); font-weight: 500; color: var(--text-body); margin-bottom: var(--space-1); }
input[type="text"], input[type="password"], input[type="email"], input[type="number"],
input[type="url"], input[type="tel"], input[type="date"], input[type="search"], select, textarea {
  width: 100%; height: 40px; padding: 0 var(--space-3);
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-family: var(--font); font-size: var(--fs-body); color: var(--text-body);
  transition: border-color var(--transition), box-shadow var(--transition);
}
textarea { height: auto; min-height: 120px; padding: var(--space-3); resize: vertical; line-height: 1.6; }
select { cursor: pointer; }
input::placeholder, textarea::placeholder { color: var(--text-muted); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--navy-600); box-shadow: 0 0 0 3px rgba(51,85,127,.15); }
input[type="checkbox"], input[type="radio"] { width: auto; height: auto; margin-right: var(--space-2); accent-color: var(--amber-500); }
.form-help, .help-text { font-size: var(--fs-meta); color: var(--text-muted); margin-top: var(--space-1); }
.form-group, .field { margin-bottom: var(--space-4); }
.field-error { border-color: var(--danger) !important; }
.field-error-message { color: var(--danger); font-size: var(--fs-meta); margin-top: var(--space-1); }

/* Styled 18px checkbox (roles matrix, etc.) */
.check { position: relative; display: inline-flex; align-items: center; }
.check input[type="checkbox"] {
  appearance: none; -webkit-appearance: none; width: 18px; height: 18px; margin: 0;
  border: 1.5px solid var(--navy-600); border-radius: 4px; background: var(--bg-card); cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), transform var(--transition);
}
.check input[type="checkbox"]:checked { background: var(--amber-500); border-color: var(--amber-500); }
.check input[type="checkbox"]:checked::after { content: ""; position: absolute; left: 6px; top: 2px; width: 5px; height: 10px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg) scale(0); animation: checkIn 120ms ease forwards; }
@keyframes checkIn { to { transform: rotate(45deg) scale(1); } }
.check input[type="checkbox"]:focus-visible { outline: 2px solid var(--amber-500); outline-offset: 2px; }

/* File dropzone */
input[type="file"] {
  width: 100%; height: auto; padding: var(--space-5);
  background: var(--bg-card); border: 2px dashed var(--border); border-radius: var(--radius-md);
  font-size: var(--fs-body); color: var(--text-secondary); cursor: pointer;
  transition: border-color var(--transition), background-color var(--transition);
}
input[type="file"]:hover, input[type="file"]:focus { border-color: var(--amber-500); background: var(--amber-100); outline: none; }
input[type="file"]::file-selector-button { margin-right: var(--space-4); height: 32px; padding: 0 var(--space-3); background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); font-family: var(--font); font-size: var(--fs-meta); font-weight: 500; color: var(--text-body); cursor: pointer; }
input[type="file"]::file-selector-button:hover { background: var(--navy-100); }

.dropzone { display: flex; flex-direction: column; align-items: center; gap: var(--space-2); border: 2px dashed var(--border); border-radius: var(--radius-md); padding: var(--space-6); text-align: center; color: var(--text-secondary); background: var(--bg-card); transition: border-color var(--transition), background-color var(--transition); cursor: pointer; }
.dropzone:hover, .dropzone.dragover { border-color: var(--amber-500); background: var(--amber-100); }
.dropzone [data-lucide], .dropzone svg { width: 32px; height: 32px; color: var(--navy-600); }
.dropzone .dropzone-hint b { color: var(--amber-text); }
.dropzone .dropzone-formats { color: var(--text-muted); font-size: var(--fs-meta); }
/* file input inside a dropzone: visually hidden but focusable (native validation works) */
.dropzone input[type="file"] { position: absolute; width: 1px; height: 1px; padding: 0; opacity: 0; border: 0; overflow: hidden; }
.file-chip { display: inline-flex; align-items: center; gap: var(--space-2); background: var(--navy-100); color: var(--text-body); border-radius: 999px; padding: var(--space-1) var(--space-3); font-size: var(--fs-meta); margin-top: var(--space-2); }
.file-chip button { background: none; border: none; cursor: pointer; color: var(--text-muted); display: inline-flex; }
.file-chip button:hover { color: var(--danger); }

/* ============================================================================
   TABLES
   ============================================================================ */
table { width: 100%; border-collapse: collapse; background: transparent; font-size: var(--fs-body); }
th {
  background: var(--navy-800); color: #fff; text-align: left;
  padding: 14px var(--space-4);
  font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; white-space: nowrap;
}
td { padding: 14px var(--space-4); border-bottom: 1px solid var(--border); color: var(--text-body); vertical-align: middle; }
tbody tr { transition: background-color 120ms ease; }
tbody tr:nth-child(even) { background: #FAFBFD; }
tbody tr:hover { background: rgba(232,238,245,.5); }
tbody tr:last-child td { border-bottom: none; }
th.num, td.num, th.text-right, td.text-right { text-align: right; }
tbody td .row-actions { opacity: 0.6; transition: opacity var(--transition); display: inline-flex; gap: var(--space-1); }
tbody tr:hover .row-actions { opacity: 1; }
/* table wrapped in a card gets clean rounded navy header */
.table-wrap { width: 100%; overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.table-wrap table { border-radius: var(--radius-lg); overflow: hidden; }
.card > .table-wrap { border: none; }

/* ============================================================================
   BADGES / STATUS PILLS
   ============================================================================ */
.badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; line-height: 1; white-space: nowrap; }
.badge-success, .badge-active { background: var(--success-bg); color: var(--success); }
.badge-info, .badge-admin, .badge-primary, .badge-accent { background: var(--info-bg); color: var(--info); }
.badge-warning, .badge-pending { background: var(--warning-bg); color: var(--warning); }
.badge-danger, .badge-inactive { background: var(--danger-bg); color: var(--danger); }
.badge-muted, .badge-neutral { background: var(--navy-100); color: var(--text-secondary); }
/* action badges */
.badge-login, .badge-create { background: var(--success-bg); color: var(--success); }
.badge-update { background: var(--warning-bg); color: var(--warning); }
.badge-delete { background: var(--danger-bg); color: var(--danger); }

/* ============================================================================
   TABS — navy pill container, amber active
   ============================================================================ */
.tab-bar { display: flex; gap: var(--space-1); background: var(--navy-800); padding: var(--space-1); border-radius: var(--radius-md); margin-bottom: var(--space-5); }
.tab-link { display: inline-flex; align-items: center; min-height: 40px; padding: var(--space-2) var(--space-4); color: rgba(255,255,255,.55); font-size: var(--fs-body); font-weight: 500; border-radius: var(--radius-sm); border: none; transition: background-color var(--transition), color var(--transition); }
.tab-link:hover { color: rgba(255,255,255,.85); }
.tab-link.active { color: #fff; background: var(--amber-500); font-weight: 600; box-shadow: var(--shadow-sm); }
.tab-link.active:hover { background: var(--amber-600); color: #fff; }

/* ============================================================================
   FILTER BAR
   ============================================================================ */
.filter-bar { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-3); }
.filter-bar .field, .filter-bar .form-group { margin-bottom: 0; }
.filter-bar label { font-size: 12px; font-weight: 600; color: var(--text-muted); }
.filter-bar .filter-actions { display: flex; gap: var(--space-2); align-items: flex-end; }

/* ============================================================================
   EMPTY STATE
   ============================================================================ */
.empty-state { text-align: center; padding: var(--space-7) var(--space-5); color: var(--text-secondary); }
.empty-state-icon { width: 56px; height: 56px; border-radius: 50%; background: var(--navy-100); color: var(--navy-600); display: inline-flex; align-items: center; justify-content: center; margin-bottom: var(--space-4); }
.empty-state-icon [data-lucide], .empty-state-icon svg { width: 26px; height: 26px; }
.empty-state-title { font-size: 15px; font-weight: 600; color: var(--text-body); margin-bottom: var(--space-2); }
.empty-state p { color: var(--text-secondary); margin-bottom: var(--space-4); max-width: 48ch; margin-left: auto; margin-right: auto; }
.empty-state a.text-link { color: var(--amber-text); font-weight: 500; }
.empty-state a.text-link:hover { text-decoration: underline; }

/* ============================================================================
   ALERTS
   ============================================================================ */
.alert { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); padding: var(--space-3) var(--space-4); margin-bottom: var(--space-5); border-radius: var(--radius-sm); border: 1px solid var(--border); font-size: var(--fs-body); }
.alert-close { background: none; border: none; font-size: 18px; line-height: 1; cursor: pointer; opacity: .5; color: inherit; padding: 0; }
.alert-close:hover { opacity: 1; }
.alert-success { background: var(--success-bg); border-color: var(--success); color: #1C6E3E; }
.alert-danger  { background: var(--danger-bg);  border-color: var(--danger);  color: #9B3529; }
.alert-warning { background: var(--warning-bg); border-color: var(--warning); color: #8A5600; }
.alert-info    { background: var(--info-bg);    border-color: var(--info);    color: var(--info); }

/* ============================================================================
   MODAL + confirm dialog
   ============================================================================ */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(22,40,63,.5); z-index: 1000; justify-content: center; align-items: center; padding: var(--space-5); }
.modal-overlay.active { display: flex; }
.modal { background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; max-width: 800px; max-height: 85vh; overflow-y: auto; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--border); background: var(--navy-800); color: #fff; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.modal-header h3 { margin: 0; color: #fff; }
.modal-close { background: none; border: none; font-size: 22px; line-height: 1; cursor: pointer; color: rgba(255,255,255,.7); padding: 0; }
.modal-close:hover { color: #fff; }
.modal-body { padding: var(--space-5); }
.modal-footer { display: flex; justify-content: flex-end; gap: var(--space-2); padding: var(--space-4) var(--space-5); border-top: 1px solid var(--border); }
.modal-sm { max-width: 440px; }

/* ============================================================================
   PAGINATION
   ============================================================================ */
.pagination { display: flex; gap: var(--space-1); justify-content: center; margin: var(--space-6) 0; }
.page-link { display: inline-flex; align-items: center; min-width: 36px; height: 36px; padding: 0 var(--space-2); justify-content: center; border: 1px solid var(--border); background: var(--bg-card); color: var(--text-body); border-radius: var(--radius-sm); font-size: var(--fs-meta); transition: background-color var(--transition); }
.page-link:hover { background: var(--navy-100); }
.page-link.active { background: var(--amber-500); border-color: var(--amber-500); color: #fff; }

/* ============================================================================
   STEPPER (Open PO vertical) + horizontal step indicator (AR upload)
   ============================================================================ */
.stepper { display: flex; flex-direction: column; gap: 0; }
.stepper .step { display: flex; gap: var(--space-3); position: relative; padding-bottom: var(--space-4); }
.stepper .step:not(:last-child)::before { content: ""; position: absolute; left: 13px; top: 28px; bottom: 0; width: 1px; background: var(--border); }
.stepper .step-num { flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--navy-800); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; z-index: 1; }
.stepper .step-body { padding-top: 3px; }
.stepper .step-title { font-weight: 600; color: var(--text-heading); font-size: var(--fs-body); }
.stepper .step-desc { font-size: var(--fs-meta); color: var(--text-muted); }

.steps-h { display: flex; gap: var(--space-2); }
.steps-h .step { flex: 1; text-align: center; position: relative; padding: 0 var(--space-2); }
.steps-h .step:not(:last-child)::after { content: ""; position: absolute; top: 16px; left: calc(50% + 20px); right: calc(-50% + 20px); height: 2px; background: var(--border); }
.steps-h .step-num { width: 32px; height: 32px; border-radius: 50%; background: var(--navy-800); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-weight: 600; margin-bottom: var(--space-2); position: relative; z-index: 1; }
.steps-h .step-title { font-weight: 600; font-size: var(--fs-meta); color: var(--text-heading); }
.steps-h .step-caption { font-size: 12px; color: var(--text-muted); }
@media (max-width: 720px) { .steps-h { flex-direction: column; } .steps-h .step:not(:last-child)::after { display: none; } }

/* code chip (locations, placeholders, table names) */
.code-chip { display: inline-flex; align-items: center; gap: var(--space-1); font-family: var(--font-mono); font-size: var(--fs-meta); background: var(--navy-100); color: var(--navy-800); padding: 4px 8px; border-radius: 4px; }
.copy-chip { cursor: pointer; border: none; }
.copy-chip:hover { background: var(--amber-100); }
.code-chip svg, .code-chip [data-lucide] { width: 14px; height: 14px; }

/* SQL editor */
.sql-editor { font-family: var(--font-mono); background: #0F1B2D; color: #E4EAF2; border: 1px solid var(--navy-900); border-radius: var(--radius-md); line-height: 1.7; padding: var(--space-4); min-height: 160px; }
.sql-editor:focus { outline: none; border-color: var(--navy-600); box-shadow: 0 0 0 3px rgba(51,85,127,.25); }
.sql-editor::placeholder { color: #7A8AA0; }

/* ============================================================================
   TOAST
   ============================================================================ */
.toast-container { position: fixed; top: var(--space-5); right: var(--space-5); z-index: 3000; display: flex; flex-direction: column; gap: var(--space-2); max-width: 360px; }
.toast { display: flex; align-items: flex-start; gap: var(--space-3); background: var(--navy-800); color: #fff; border-left: 3px solid var(--amber-500); border-radius: var(--radius-sm); box-shadow: var(--shadow-lg); padding: var(--space-3) var(--space-4); font-size: var(--fs-body); animation: toastIn 200ms ease both; }
.toast.hide { animation: toastOut 200ms ease both; }
.toast-success { border-left-color: var(--success); }
.toast-danger { border-left-color: var(--danger); }
.toast [data-lucide], .toast svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.toast-close { margin-left: auto; background: none; border: none; color: rgba(255,255,255,.7); cursor: pointer; font-size: 16px; line-height: 1; }
@keyframes toastIn { from { opacity: 0; transform: translateX(16px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(16px); } }

/* ============================================================================
   LOGIN + spinner
   ============================================================================ */
.login-container { display: flex; justify-content: center; align-items: center; min-height: calc(100vh - var(--topbar-height)); padding: var(--space-6) var(--space-4); }
.login-card { background: var(--bg-card); border: 1px solid var(--border); border-top: 3px solid var(--amber-500); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); width: 100%; max-width: 400px; padding: var(--space-6); }
.login-card h2 { text-align: center; margin-bottom: var(--space-2); }
.login-card .text-muted { text-align: center; margin-bottom: var(--space-5); }
.login-card .btn { width: 100%; margin-top: var(--space-3); }

.loading { color: var(--text-muted); display: inline-flex; align-items: center; gap: var(--space-2); }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.4); border-top-color: currentColor; border-radius: 50%; animation: spin 700ms linear infinite; }
.spinner-amber { border-color: var(--amber-100); border-top-color: var(--amber-500); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================================
   UTILITIES
   ============================================================================ */
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: var(--space-2); } .mt-2 { margin-top: var(--space-4); } .mt-3 { margin-top: var(--space-5); }
.mb-1 { margin-bottom: var(--space-2); } .mb-2 { margin-bottom: var(--space-4); } .mb-3 { margin-bottom: var(--space-5); } .mb-0 { margin-bottom: 0; }
.flex { display: flex; } .flex-between { display: flex; justify-content: space-between; align-items: center; } .flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; } .gap-1 { gap: var(--space-2); } .gap-2 { gap: var(--space-4); } .w-full { width: 100%; }

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width: 1024px) {
  .mobile-menu-btn { display: inline-flex; }
  .nav-sidebar { transform: translateX(-100%); box-shadow: var(--shadow-lg); z-index: 2000; }
  .nav-sidebar.open { transform: translateX(0); }
  .topbar.with-nav { left: 0; }
  main.content.with-nav { margin-left: 0; }
  .app-footer.with-nav { margin-left: 0; }
  main.content { padding: var(--space-4); }
  .card-grid { grid-template-columns: 1fr; }
  table { min-width: 640px; }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }

@media print {
  .nav-sidebar, .topbar, .app-footer, .btn, .alert, .toast-container { display: none !important; }
  main.content.with-nav { margin: 0 !important; }
  * { background: #fff !important; color: #000 !important; box-shadow: none !important; }
  th { background: #fff !important; color: #000 !important; border-bottom: 2px solid #000 !important; }
}