/* Design tokens – refreshed palette */
:root {
  /* Backgrounds – warm neutral base */
  --bg-base: #f1f3f4;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #e8eaed;
  /* Borders */
  --border: #dadce0;
  --border-focus: #0284c7;
  /* Text */
  --text-primary: #1a1d21;
  --text-secondary: #5f6368;
  --text-muted: #80868b;
  /* Links / secondary actions – blue */
  --accent: #1a73e8;
  --accent-hover: #1557b0;
  --accent-bg: rgba(26, 115, 232, 0.08);
  /* Primary CTA (Approve, Sign in) – emerald */
  --primary: #059669;
  --primary-hover: #047857;
  --primary-bg: rgba(5, 150, 105, 0.1);
  /* Success = primary for approve */
  --success: #059669;
  --success-bg: rgba(5, 150, 105, 0.1);
  --success-hover: #047857;
  /* Danger – errors only */
  --danger: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.08);
  --danger-hover: #b91c1c;
  /* Warning – deny (amber/yellow in scheme) */
  --warning: #ca8a04;
  --warning-hover: #a16207;
  --warning-bg: rgba(202, 138, 4, 0.12);
  /* Radii – slightly rounder */
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
  /* Motion */
  --transition: 0.2s ease;
  /* Layout */
  --nav-height: 60px;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 2.5rem;
  --space-3xl: 3rem;
  /* Type scale */
  --text-xs: 0.7rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-md: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;
  --text-2xl: 1.75rem;
  /* Line height */
  --leading-tight: 1.25;
  --leading-snug: 1.35;
  --leading-normal: 1.5;
  /* Breakpoints */
  --bp-sm: 640px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-detail: 900px;
}

* { box-sizing: border-box; }
html { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  margin: 0;
  min-height: 100%;
  min-height: 100vh;
  line-height: var(--leading-normal);
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
.font-mono, .tabular-nums { font-variant-numeric: tabular-nums; }
.font-mono { font-family: 'SF Mono', 'Monaco', 'Consolas', 'Liberation Mono', monospace; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

.app-shell {
  min-height: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Topbar – professional header */
.topbar {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  flex-shrink: 0;
}
.topbar-inner {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0 calc(var(--space-xl) + var(--space-md));
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}
.topbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-decoration: none;
  padding: 0.5rem 0.75rem 0.5rem 0;
  margin-right: var(--space-sm);
  transition: color var(--transition);
}
.topbar-brand:hover { color: var(--accent); }
.topbar-brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}
.topbar-nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 0 0 auto;
  margin-left: auto;
  justify-content: flex-end;
}
.topbar-nav-group {
  display: flex;
  align-items: center;
  gap: 2px;
}
.topbar-nav-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 var(--space-sm);
  flex-shrink: 0;
}
.topbar-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 0.5rem 0.875rem;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.topbar-nav a:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}
.topbar-nav a.topbar-nav-primary {
  color: var(--accent);
  font-weight: 600;
}
.topbar-nav a.topbar-nav-primary:hover {
  color: var(--accent-hover);
  background: var(--accent-bg);
}
.topbar-user {
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 0 0.25rem 0 0;
}
.topbar-nav a.topbar-nav-logout {
  color: var(--text-muted);
  font-weight: 500;
}
.topbar-nav a.topbar-nav-logout:hover {
  color: var(--danger);
  background: var(--danger-bg);
}

.main {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: var(--space-xl);
}
.main--narrow { max-width: 480px; margin-left: auto; margin-right: auto; }
.main--centered { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - var(--nav-height)); padding: var(--space-2xl); }
.main--no-nav { min-height: 100vh; }

.container {
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.container--wide { max-width: 1800px; }
.container--fill { max-width: none; }
.container--fill-height {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

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

/* Cards – rounded, soft shadow, lighter border */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-card);
}
.card-header {
  margin: 0 0 var(--space-md);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.card h2 {
  margin: 0 0 0.5rem;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
}
.muted { color: var(--text-secondary); font-size: var(--text-base); }
.flex { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.gap-1 { gap: 1rem; }
.gap-2 { gap: 1.5rem; }

/* Buttons – uniform, sleek, professional */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  font-family: inherit;
  min-height: 40px;
  white-space: nowrap;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}
.btn:active:not(:disabled) { transform: translateY(1px); box-shadow: none; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
/* Default / secondary – neutral outline */
.btn:not([class*="btn-primary"]):not([class*="btn-success"]):not([class*="btn-ghost"]):not([class*="btn-danger"]):not([class*="btn-warning"]) {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border);
}
.btn:not([class*="btn-primary"]):not([class*="btn-success"]):not([class*="btn-ghost"]):not([class*="btn-danger"]):not([class*="btn-warning"]):hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: rgba(0, 0, 0, 0.12);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 600;
}
.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
}
.btn-success {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
  font-weight: 600;
}
.btn-success:hover:not(:disabled) {
  background: var(--success-hover);
  border-color: var(--success-hover);
  color: #fff;
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
  box-shadow: none;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover:not(:disabled) {
  background: var(--danger-hover);
  border-color: var(--danger-hover);
  color: #fff;
}
.btn-warning {
  background: var(--warning);
  color: #fff;
  border-color: var(--warning);
  font-weight: 500;
}
.btn-warning:hover:not(:disabled) {
  background: var(--warning-hover);
  border-color: var(--warning-hover);
  color: #fff;
}
.btn-warning-ghost {
  background: transparent;
  color: var(--warning);
  border-color: var(--warning);
  box-shadow: none;
}
.btn-warning-ghost:hover:not(:disabled) {
  background: var(--warning-bg);
  color: var(--warning-hover);
  border-color: var(--warning-hover);
}
.btn-primary-ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: none;
}
.btn-primary-ghost:hover:not(:disabled) {
  background: var(--primary-bg);
  color: var(--primary-hover);
  border-color: var(--primary-hover);
}
.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: var(--text-sm);
  min-height: 34px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
}
.btn-sm.btn-ghost,
.btn-sm.btn-warning-ghost { box-shadow: none; }
input:focus, button:focus, textarea:focus {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}
.form-group { margin-bottom: var(--space-md); }
.form-group:last-of-type { margin-bottom: var(--space-lg); }
.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}
.form-input,
input[type="text"],
input[type="password"],
input[type="email"],
textarea.form-input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: var(--text-md);
  font-family: inherit;
  box-sizing: border-box;
  min-height: 44px;
}
textarea.form-input { min-height: 80px; resize: vertical; }
@media (pointer: coarse) {
  .btn { min-height: 44px; padding: 0.5rem 1.25rem; }
  .btn-sm { min-height: 38px; padding: 0.375rem 0.875rem; }
}

/* Alerts – rounded, consistent with cards */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  border: 1px solid transparent;
}
.alert-success { background: var(--success-bg); color: #047857; border-color: rgba(5, 150, 105, 0.25); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(202, 138, 4, 0.25); }
.alert-error { background: var(--danger-bg); color: var(--danger); border-color: rgba(220, 38, 38, 0.25); }
.error { color: var(--danger); }
.success { color: var(--success); }

/* Tables – sticky header, use tokens */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: var(--space-md) var(--space-lg); border-bottom: 1px solid var(--border); }
th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--bg-base);
}
tbody tr { transition: background var(--transition); }
tbody tr:hover { background: var(--bg-hover); }

.pdf-wrap {
  background: var(--bg-hover);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 0.75rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.pdf-wrap iframe { width: 100%; height: 70vh; min-height: 400px; border: none; }
@media (max-width: 768px) {
  .pdf-wrap iframe { min-height: 300px; }
}

.page-title { font-size: var(--text-2xl); font-weight: 700; letter-spacing: -0.02em; margin: 0 0 var(--space-sm); }
.page-subtitle { color: var(--text-secondary); font-size: var(--text-base); margin: 0 0 var(--space-lg); }
.breadcrumb { font-size: var(--text-sm); color: var(--text-muted); margin-bottom: var(--space-md); }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--text-primary); }

.action-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
  row-gap: var(--space-md);
}
.action-group {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.action-group .action-item {
  display: inline-flex;
  align-items: stretch;
}
.action-group .action-item form {
  display: flex !important;
  align-items: stretch;
}
.action-group .action-item form .btn { align-self: stretch; }
.action-group .action-item .btn,
.action-group .action-item a.btn {
  /* Inherits base .btn; ensure layout only */
  align-self: stretch;
}
.action-group .action-item .btn:not([class*="btn-primary"]):not([class*="btn-success"]):not([class*="btn-warning"]),
.action-group .action-item a.btn:not([class*="btn-primary"]):not([class*="btn-success"]):not([class*="btn-warning"]) {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
  box-shadow: none;
}
.action-group .action-item .btn:not([class*="btn-primary"]):not([class*="btn-success"]):not([class*="btn-warning"]):hover:not(:disabled),
.action-group .action-item a.btn:not([class*="btn-primary"]):not([class*="btn-success"]):not([class*="btn-warning"]):hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}
.action-group .action-item--primary .btn {
  background: var(--success);
  color: #fff;
  font-weight: 600;
  border-color: var(--success);
}
.action-group .action-item--primary .btn:hover:not(:disabled) {
  background: var(--success-hover);
  color: #fff;
  border-color: var(--success-hover);
}
.action-group .action-item--link .btn,
.action-group .action-item--link a.btn {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-bg);
  box-shadow: none;
}
.action-group .action-item--link .btn:hover,
.action-group .action-item--link a.btn:hover {
  background: rgba(26, 115, 232, 0.14);
  color: var(--accent-hover);
  border-color: var(--accent-hover);
}
.action-group--utility .action-item .btn {
  color: var(--text-muted);
  font-weight: 500;
  border-color: var(--border);
  background: transparent;
  box-shadow: none;
}
.action-group--utility .action-item .btn:hover:not(:disabled) {
  color: var(--text-primary);
  background: var(--bg-hover);
}
/* QB company switcher – pill with icon */
.qb-profile-switcher {
  display: inline-flex;
  align-items: center;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 9999px;
  padding: 0 0.125rem 0 0.375rem;
  min-height: 34px;
  gap: 0.25rem;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.qb-profile-switcher:hover {
  border-color: rgba(0,0,0,0.12);
  background: var(--bg-hover);
}
.qb-profile-switcher:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2);
}
.qb-switcher-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(5, 150, 105, 0.12);
  color: var(--primary);
  flex-shrink: 0;
}
.qb-switcher-icon svg { width: 12px; height: 12px; }
.qb-profile-switcher form { display: flex; align-items: center; min-width: 0; }
.qb-profile-switcher select {
  padding: 0.35rem 1.5rem 0.35rem 0.5rem;
  border: none;
  border-radius: 9999px;
  font-size: var(--text-sm);
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  cursor: pointer;
  min-height: 30px;
  font-weight: 500;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12' fill='none' stroke='%2380868b' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M3 4.5l3 3 3-3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.4rem center;
  max-width: 180px;
}
.qb-profile-switcher select:focus { outline: none; }
.qb-add-profile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: none;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1;
  color: var(--text-muted);
  opacity: 0.6;
  text-decoration: none;
  background: transparent;
  transition: opacity var(--transition), color var(--transition), background var(--transition);
}
.qb-add-profile:hover {
  opacity: 1;
  color: var(--accent);
  background: var(--accent-bg);
}
.qb-relink {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  margin-left: 0.125rem;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: color var(--transition), background var(--transition);
}
.qb-relink:hover {
  color: var(--accent);
  background: var(--accent-bg);
}

.coa-table { font-size: var(--text-sm); }
.coa-table th { position: sticky; top: 0; z-index: 1; }

/* Mobile: safe areas, compact topbar */
@media (max-width: 768px) {
  .topbar-inner {
    padding: 0.5rem var(--space-md);
    padding-left: max(var(--space-md), env(safe-area-inset-left));
    padding-right: max(var(--space-md), env(safe-area-inset-right));
    min-height: 56px;
    height: auto;
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
  .topbar-brand { font-size: var(--text-base); padding-right: 0.25rem; }
  .topbar-brand-dot { width: 6px; height: 6px; }
  .topbar-nav {
    flex-wrap: wrap;
    gap: 2px;
    justify-content: flex-end;
  }
  .topbar-nav-divider { margin: 0 var(--space-xs); height: 16px; }
  .topbar-nav a {
    font-size: var(--text-xs);
    padding: 0.5rem 0.5rem;
    min-height: 40px;
  }
  .topbar-user {
    font-size: 0.6875rem;
    order: 1;
    width: 100%;
    text-align: right;
    padding-right: 0.25rem;
  }
  .qb-profile-switcher { min-height: 32px; padding: 0 0.125rem 0 0.25rem; }
  .qb-switcher-icon { width: 22px; height: 22px; }
  .qb-switcher-icon svg { width: 11px; height: 11px; }
  .qb-profile-switcher select { min-height: 28px; max-width: 140px; padding-right: 1.25rem; }
  .qb-add-profile { width: 22px; height: 22px; font-size: 0.8rem; }
  .qb-relink { padding: 0.2rem 0.35rem; font-size: 0.6875rem; }
  .main {
    padding: var(--space-md);
    padding-left: max(var(--space-md), env(safe-area-inset-left));
    padding-right: max(var(--space-md), env(safe-area-inset-right));
    padding-bottom: max(var(--space-md), env(safe-area-inset-bottom));
  }
  .container { padding: 0; }
  .card {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
  }
}
@media (max-width: 480px) {
  body { font-size: 15px; }
  .page-title { font-size: var(--text-xl); }
}