:root {
  --color-canvas: #f1f5f9;
  --color-surface: #ffffff;
  --color-surface-muted: #f8fafc;
  --color-border: #cbd5e1;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-primary: #1d4ed8;
  --color-primary-hover: #1e40af;
  --color-focus: #2563eb;
  --color-success-bg: #dcfce7;
  --color-success-text: #166534;
  --color-danger-bg: #fee2e2;
  --color-danger-text: #991b1b;
  --color-warning-bg: #fef3c7;
  --color-warning-text: #92400e;
}

* { box-sizing: border-box; }
html { background: var(--color-canvas); }
body { margin: 0; min-width: 320px; min-height: 100vh; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--color-text); background: var(--color-canvas); line-height: 1.5; }
.skip-link { position: fixed; z-index: 20; top: 8px; left: 8px; padding: 10px 14px; color: #fff; background: var(--color-primary); border-radius: 8px; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
button, input, select, textarea { font: inherit; }
button { min-height: 44px; padding: 10px 16px; border: 0; border-radius: 10px; font-weight: 700; color: #fff; background: var(--color-primary); cursor: pointer; }
button:hover:not(:disabled) { background: var(--color-primary-hover); }
@media (hover: none) { button:hover:not(:disabled) { background: var(--color-primary); } button.secondary:hover:not(:disabled) { background: #e2e8f0; } button.danger:hover:not(:disabled) { background: var(--color-danger-bg); } }
button:disabled { cursor: not-allowed; opacity: .58; }
button.secondary { color: var(--color-text); background: #e2e8f0; }
button.secondary:hover:not(:disabled) { background: #cbd5e1; }
button.danger { color: var(--color-danger-text); background: var(--color-danger-bg); }
button.danger:hover:not(:disabled) { background: #fecaca; }
button.small { min-height: 40px; padding: 8px 12px; font-size: .875rem; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }

input, select, textarea { width: 100%; min-height: 44px; padding: 10px 12px; color: var(--color-text); border: 1px solid var(--color-border); border-radius: 10px; background: var(--color-surface); }
textarea { min-height: 88px; resize: vertical; }
input[readonly] { color: var(--color-text-muted); background: #f1f5f9; }
form { display: grid; gap: 10px; }
label { display: block; margin-top: 4px; font-weight: 700; }
h1, h2, h3, h4, p { margin-top: 0; }
h1 { font-size: clamp(1.5rem, 4vw, 2rem); }
h2 { margin-bottom: 0; font-size: clamp(1.35rem, 3vw, 1.75rem); }
h3 { font-size: 1.125rem; }
.subtitle, .muted, .meta { color: var(--color-text-muted); }
.meta { overflow-wrap: normal; }
.hidden { display: none !important; }

.app-shell { width: min(100%, 1488px); margin: 0 auto; padding: 16px; }
.card { padding: 20px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 16px; box-shadow: 0 8px 24px rgba(15, 23, 42, .06); }
#login-card, #account-status-card, #password-change-card { width: min(100%, 440px); margin: clamp(16px, 8vh, 72px) auto; }
.account-state-message { color: #334155; line-height: 1.65; }

.app-card { min-height: calc(100vh - 32px); padding: 0; overflow: visible; }
.app-navigation { display: flex; flex-direction: column; gap: 16px; padding: 16px; border-bottom: 1px solid var(--color-border); background: var(--color-surface); }
.app-brand { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.app-brand span, .eyebrow { color: var(--color-text-muted); font-size: .8125rem; }
.tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.tab { min-width: 0; min-height: 48px; padding: 8px; color: var(--color-text-muted); background: #e2e8f0; font-size: .875rem; }
.tab.active { color: #fff; background: var(--color-primary); }
.nav-icon { display: inline-flex; align-items: center; justify-content: center; min-width: 18px; font-size: 1.125rem; line-height: 1; }
.nav-label { min-width: 0; overflow-wrap: anywhere; }
.account-actions { display: none; }
.app-content { min-width: 0; padding: 20px 16px calc(92px + env(safe-area-inset-bottom)); }
.app-topbar { position: relative; display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.eyebrow { margin-bottom: 2px; font-weight: 700; }
.compact-more-toggle { display: none; }
.compact-more-toggle.active { color: #fff; background: var(--color-primary); }
.compact-more-menu { position: fixed; z-index: 5; right: 12px; bottom: calc(76px + env(safe-area-inset-bottom)); display: grid; width: min(280px, calc(100vw - 24px)); gap: 8px; padding: 12px; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-surface); box-shadow: 0 12px 28px rgba(15, 23, 42, .18); }
.more-destination { color: var(--color-text); background: var(--color-surface-muted); text-align: left; }
.more-destination.active { color: #fff; background: var(--color-primary); }

.panel { scroll-margin-top: 20px; }
.section-title-row, .top-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.section-title-row > * { min-width: 0; }
.section-title-row #refresh-staff { flex: 0 0 auto; white-space: nowrap; }
.search-row { display: grid; gap: 10px; }
.subform, .queue-form { margin-top: 16px; padding: 16px; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-surface-muted); }
.queue-form { border-style: dashed; }
.customer-item, .queue-item, .directory-item, .history-item, .staff-item { margin-top: 12px; padding: 16px; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-surface); }
.history-item, .history-item > .queue-name, .history-item > .meta { min-width: 0; }
.history-item > .queue-name, .history-item > .meta { overflow-wrap: anywhere; }
.customer-name, .queue-name, .staff-name { font-size: 1.0625rem; font-weight: 800; overflow-wrap: normal; }
.customer-actions, .queue-actions, .staff-actions, .dialog-actions { display: grid; gap: 8px; margin-top: 12px; }
.queue-actions .danger { margin-top: 4px; }
.status { min-height: 24px; margin: 8px 0 0; font-weight: 600; }
.status.success { color: var(--color-success-text); }
.status.error { color: var(--color-danger-text); }
.panel-divider { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--color-border); }
.history-filter-disclosure { margin: 12px 0; }
.history-filter-disclosure summary { min-height: 44px; padding: 10px 0; font-weight: 800; cursor: pointer; }
.history-filter-summary { display: inline-flex; margin-left: 8px; padding: 2px 8px; border-radius: 999px; color: #1e3a8a; background: #dbeafe; font-size: .875rem; font-weight: 800; }
.history-tools { display: grid; gap: 10px; margin: 8px 0 12px; }
.history-tools label { display: grid; gap: 6px; margin: 0; font-size: .875rem; }
.history-danger-zone { display: grid; gap: 10px; margin: 20px 0; padding: 16px; border: 1px solid #fca5a5; border-radius: 12px; background: #fff7f7; }
.history-danger-zone h4, .history-danger-zone p { margin: 0; }
.staff-status-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.staff-status-filters button { min-height: 44px; font-size: .875rem; }
.staff-status-filters button.active { color: #fff; background: var(--color-primary); }
.staff-status-filters button.active:hover { color: #fff; background: var(--color-primary); }
.staff-item.archived { background: #f8fafc; opacity: .82; }
.staff-name-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.staff-badge { display: inline-flex; align-items: center; min-height: 26px; padding: 3px 8px; border-radius: 999px; color: #334155; background: #e2e8f0; font-size: .75rem; font-weight: 800; }
.staff-badge.active { color: var(--color-success-text); background: var(--color-success-bg); }.staff-badge.pending_setup { color: var(--color-warning-text); background: var(--color-warning-bg); }.staff-badge.suspended { color: var(--color-danger-text); background: var(--color-danger-bg); }.staff-badge.archived { color: #475569; background: #e2e8f0; }.staff-badge.admin { color: #1e40af; background: #dbeafe; }
code { overflow-wrap: anywhere; }
dialog { width: min(92vw, 640px); max-height: 90dvh; padding: 20px; border: 0; border-radius: 16px; box-shadow: 0 20px 48px rgba(15,23,42,.28); }
dialog::backdrop { background: rgba(15, 23, 42, .48); }

@media (min-width: 768px) {
  .app-shell { padding: 24px; }
  .app-card { display: grid; grid-template-columns: 88px minmax(0, 1fr); min-height: calc(100vh - 48px); }
  .app-navigation { position: sticky; top: 0; height: 100vh; padding: 12px 8px; border-right: 1px solid var(--color-border); border-bottom: 0; }
  .app-brand { justify-content: center; }.app-brand strong { display: none; }.app-brand span { font-size: .75rem; }
  .tabs { grid-template-columns: 1fr; }.tab { display: grid; justify-items: center; gap: 4px; min-height: 64px; font-size: .875rem; }.account-actions { display: grid; gap: 8px; margin-top: auto; }.account-actions .muted { margin: 0; font-size: .875rem; overflow-wrap: anywhere; }
  .app-content { padding: 28px 24px 40px; }.compact-more-toggle, .compact-more-menu { display: none !important; }
  .search-row { grid-template-columns: minmax(0, 1fr) auto; }.search-row button { min-width: 112px; }
  #customer-results { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 12px; }.customer-item { margin-top: 0; }
  #guest-queue-form { grid-template-columns: 1fr 1fr; max-width: 720px; }.guest-note-field, #guest-queue-form button, #guest-queue-status { grid-column: 1 / -1; }
  .customer-actions, .queue-actions, .staff-actions, .dialog-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }.queue-actions .danger { margin-top: 0; }
  .history-filter-disclosure summary { display: none; }.history-filter-disclosure { margin: 12px 0; }.history-filter-disclosure[open] .history-tools, .history-filter-disclosure:not([open]) .history-tools { display: grid; }.history-tools { grid-template-columns: repeat(2, minmax(160px, 1fr)) repeat(3, auto); align-items: end; }.history-tools .danger { margin-top: 0; }
  #queue-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }.queue-item { margin-top: 0; }
  .directory-item, .history-item, .staff-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 16px; align-items: center; }.directory-item .customer-actions, .history-item .customer-actions, .staff-item .staff-actions { grid-column: 1 / -1; }
}

@media (min-width: 1200px) {
  .app-card { grid-template-columns: 240px minmax(0, 1fr); }.app-navigation { padding: 24px 16px; }.app-brand { justify-content: space-between; }.app-brand strong { display: block; }.app-brand span { font-size: .8125rem; }
  .tabs { gap: 6px; }.tab { display: flex; justify-content: flex-start; gap: 10px; padding: 10px 12px; text-align: left; font-size: 1rem; }.account-actions .muted { font-size: inherit; }
  .app-content { padding: 32px; }.app-topbar { margin-bottom: 28px; }.app-content > .panel { max-width: 1120px; }
  #customer-results { display: block; }.customer-item { display: grid; grid-template-columns: minmax(200px, 1fr) minmax(160px, 1fr) auto; gap: 12px; align-items: center; }.customer-item .customer-actions { grid-template-columns: repeat(2, minmax(120px, 1fr)); margin: 0; }.customer-item .queue-form { grid-column: 1 / -1; }
  .directory-item, .history-item, .staff-item { grid-template-columns: minmax(180px, 1.4fr) minmax(160px, 1fr) minmax(220px, 1.2fr); }.staff-item .staff-actions { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
  #queue-list { display: block; }.queue-item { display: grid; grid-template-columns: minmax(180px, 1.3fr) minmax(160px, 1fr) minmax(220px, 1.4fr) auto; gap: 8px 16px; align-items: center; }.queue-item .queue-actions { grid-template-columns: repeat(2, minmax(116px, 1fr)); margin: 0; }.queue-item .meta { margin: 0; }
}

@media (max-width: 767px) {
  .tabs { position: fixed; z-index: 4; right: 0; bottom: 0; left: 0; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; padding: 8px 8px calc(8px + env(safe-area-inset-bottom)); border-top: 1px solid var(--color-border); background: var(--color-surface); box-shadow: 0 -4px 16px rgba(15,23,42,.10); }
  .tab { display: grid; justify-items: center; align-content: center; gap: 3px; min-height: 48px; padding: 4px 2px; border-radius: 8px; background: transparent; font-size: .875rem; }.nav-icon { font-size: 1.0625rem; }.tab[data-target="directory-panel"], .tab[data-target="staff-panel"] { display: none; }.compact-more-toggle { display: grid; }.account-actions { display: none; }
  dialog { width: 100vw; max-width: none; max-height: 90dvh; margin: auto 0 0; border-radius: 16px 16px 0 0; }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }