:root {
  --bg: #eef5f8;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --text: #12202a;
  --muted: #61717d;
  --line: rgba(122, 144, 156, 0.22);
  --primary: #0f8b8d;
  --primary-dark: #086467;
  --accent: #f2a541;
  --danger: #d64550;
  --ok: #19a974;
  --shadow: 0 20px 70px rgba(24, 49, 64, 0.14);
  --radius: 8px;
}

body.dark {
  --bg: #111820;
  --surface: rgba(28, 38, 48, 0.74);
  --surface-strong: rgba(24, 33, 42, 0.94);
  --text: #edf5f7;
  --muted: #aab8c2;
  --line: rgba(185, 205, 214, 0.16);
  --primary: #45c7bf;
  --primary-dark: #26a6a0;
  --accent: #f5bd62;
  --danger: #ff6b75;
  --ok: #62d49f;
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(15, 139, 141, 0.14), transparent 28rem),
    radial-gradient(circle at 85% 0%, rgba(242, 165, 65, 0.16), transparent 24rem),
    var(--bg);
}

button, input, select, textarea { font: inherit; }

button {
  border: 0;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

button:hover { transform: translateY(-1px); }
button:active { transform: translateY(0); }
button:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
  border-radius: var(--radius);
  padding: 0.78rem 0.9rem;
  outline: none;
  transition: border 160ms ease, box-shadow 160ms ease;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(15, 139, 141, 0.14);
}

.hidden { display: none !important; }

.loader-screen {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  background: var(--bg);
}

.loader-card {
  display: grid;
  gap: 1rem;
  justify-items: center;
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.loader-ring {
  width: 48px;
  height: 48px;
  border: 4px solid var(--line);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 800ms linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.25rem;
}

.login-panel {
  width: min(100%, 430px);
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  animation: rise 420ms ease both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.brand-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  font-weight: 900;
  box-shadow: 0 14px 28px rgba(15, 139, 141, 0.22);
}

.brand-mark.small {
  width: 42px;
  height: 42px;
  font-size: 0.85rem;
  flex: 0 0 auto;
}

.eyebrow {
  margin: 1.25rem 0 0.35rem;
  color: var(--primary-dark);
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0;
}

h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0.8rem; font-size: clamp(2rem, 6vw, 3rem); line-height: 1; }
h2 { margin-bottom: 0.25rem; }
h3 { margin-bottom: 0; }

.login-copy { color: var(--muted); line-height: 1.6; }
.login-form { display: grid; gap: 1rem; margin-top: 1.5rem; }
.security-text { margin: -0.35rem 0 0; color: var(--muted); font-size: 0.82rem; line-height: 1.45; }
label { display: grid; gap: 0.45rem; color: var(--muted); font-weight: 700; font-size: 0.9rem; }
.password-row { display: grid; grid-template-columns: 1fr auto; gap: 0.55rem; }

.primary-btn, .secondary-btn, .danger-btn, .text-btn, .icon-btn, .menu-toggle {
  min-height: 42px;
  border-radius: var(--radius);
  padding: 0.72rem 1rem;
  font-weight: 800;
}

.primary-btn { background: var(--primary); color: white; box-shadow: 0 12px 26px rgba(15, 139, 141, 0.22); }
.primary-btn:hover { background: var(--primary-dark); }
.secondary-btn, .icon-btn, .menu-toggle { background: var(--surface-strong); color: var(--text); border: 1px solid var(--line); }
.danger-btn { background: rgba(214, 69, 80, 0.12); color: var(--danger); border: 1px solid rgba(214, 69, 80, 0.2); }
.text-btn { background: transparent; color: var(--primary-dark); padding-inline: 0.4rem; }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 1rem;
  border-right: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(22px);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 8;
}

.sidebar-brand {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  padding: 0.55rem;
}

.sidebar-brand span {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.sidebar-brand .sync-status {
  color: var(--primary-dark);
  font-weight: 800;
}

.sidebar-brand .sync-status[data-mode="error"] {
  color: var(--danger);
}

.sidebar-brand .sync-status[data-mode="success"] {
  color: var(--ok);
}

.nav-list { display: grid; gap: 0.45rem; }
.nav-link, .mobile-nav-link {
  width: 100%;
  text-align: left;
  background: transparent;
  color: var(--muted);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  font-weight: 800;
}
.nav-link.active, .nav-link:hover, .mobile-nav-link.active, .mobile-nav-link:hover { background: var(--surface-strong); color: var(--text); box-shadow: 0 8px 22px rgba(24, 49, 64, 0.08); }
.sidebar-footer { margin-top: auto; display: grid; gap: 0.6rem; }

.mobile-nav {
  display: none;
}

.workspace { min-width: 0; padding: 1rem; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 7;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0 1.1rem;
  background: linear-gradient(to bottom, var(--bg) 76%, transparent);
}
.topbar p { color: var(--muted); margin-bottom: 0; }
.top-actions, .toolbar { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }
.menu-toggle { display: none; }

.view { display: none; animation: rise 220ms ease both; }
.view.active { display: block; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.stat-card, .panel, .modal-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.stat-card {
  padding: 1rem;
  min-height: 112px;
  display: grid;
  align-content: space-between;
}
.stat-card span { color: var(--muted); font-weight: 800; font-size: 0.84rem; }
.stat-card strong { font-size: 1.8rem; }

.panel-grid, .report-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 1rem;
  margin-top: 1rem;
}

.panel { padding: 1rem; }
.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.activity-list, .history-list, .summary-list { display: grid; gap: 0.65rem; }
.activity-item, .history-item, .summary-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.38);
}
body.dark .activity-item, body.dark .history-item, body.dark .summary-item { background: rgba(255, 255, 255, 0.04); }

.status-bars { display: grid; gap: 1rem; }
.status-bars div { display: grid; gap: 0.35rem; color: var(--muted); font-weight: 800; }
progress { width: 100%; height: 12px; accent-color: var(--primary); }

.toolbar {
  margin-bottom: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(18px);
}
.toolbar input { flex: 1 1 260px; }
.toolbar select { width: auto; min-width: 150px; }

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

table { width: 100%; border-collapse: collapse; min-width: 980px; }
th, td { padding: 0.85rem; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0; background: rgba(255, 255, 255, 0.45); }
body.dark th { background: rgba(255, 255, 255, 0.05); }
td { font-size: 0.92rem; }
tr:hover td { background: rgba(15, 139, 141, 0.055); }

.status-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.28rem 0.62rem;
  font-size: 0.78rem;
  font-weight: 900;
}
.status-Active { color: #087a55; background: rgba(25, 169, 116, 0.14); }
.status-Hold { color: #9b6408; background: rgba(242, 165, 65, 0.18); }
.status-Inactive { color: #a92530; background: rgba(214, 69, 80, 0.14); }

.row-actions { display: flex; gap: 0.4rem; }
.row-actions button, .status-select { min-height: 34px; padding: 0.42rem 0.6rem; border-radius: var(--radius); }
.status-select { min-width: 110px; }

.modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(8, 17, 23, 0.48);
}
.modal-card {
  width: min(100%, 720px);
  max-height: 92vh;
  overflow: auto;
  padding: 1rem;
  animation: rise 200ms ease both;
}
.modal-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}
.full { grid-column: 1 / -1; }
.calc-strip {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  margin: 1rem 0;
  padding: 0.9rem;
  border-radius: var(--radius);
  background: rgba(15, 139, 141, 0.1);
  color: var(--text);
  font-weight: 800;
  flex-wrap: wrap;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 0.65rem; }
.payment-card { width: min(100%, 520px); }
.payment-info {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1rem;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.receipt-card { width: min(100%, 460px); }
.receipt-content {
  padding: 1rem;
  background: white;
  color: #111820;
  border-radius: var(--radius);
}
.receipt-content h2 { text-align: center; margin-bottom: 0.2rem; }
.receipt-row { display: flex; justify-content: space-between; padding: 0.55rem 0; border-bottom: 1px dashed #ccd6dc; }

.toast-host {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 50;
  display: grid;
  gap: 0.6rem;
}
.toast {
  min-width: 240px;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  color: white;
  background: #183140;
  box-shadow: var(--shadow);
  animation: toastIn 220ms ease both;
}
.toast.success { background: var(--ok); }
.toast.error { background: var(--danger); }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.staff .admin-only { display: none !important; }
.empty-state { color: var(--muted); padding: 1rem; text-align: center; }

@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .menu-toggle { display: none; }
  .mobile-nav {
    position: fixed;
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.35rem;
    padding: 0.45rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-strong);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
  }
  .mobile-nav-link {
    min-height: 46px;
    padding: 0.4rem 0.35rem;
    text-align: center;
    font-size: 0.78rem;
  }
  .workspace { padding-bottom: 5.7rem; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .panel-grid, .report-grid { grid-template-columns: 1fr; }
  .topbar {
    position: static;
    background: transparent;
  }
  .topbar h2 { font-size: 1.35rem; }
  .table-wrap {
    border: 0;
    background: transparent;
    box-shadow: none;
  }
  table, thead, tbody, tr, td { display: block; min-width: 0; width: 100%; }
  thead { display: none; }
  tr {
    margin-bottom: 0.85rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
    overflow: hidden;
  }
  td {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    white-space: normal;
  }
  td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 900;
    text-transform: uppercase;
  }
  td:first-child {
    display: block;
    background: rgba(15, 139, 141, 0.08);
  }
  td:first-child::before { display: none; }
  .row-actions { justify-content: flex-end; flex-wrap: wrap; }
}

@media (max-width: 640px) {
  .workspace { padding: 0.75rem; }
  .topbar { align-items: flex-start; flex-wrap: wrap; }
  .top-actions { width: 100%; }
  .top-actions button, .toolbar button, .toolbar select { flex: 1 1 100%; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card { min-height: 96px; }
  .form-grid { grid-template-columns: 1fr; }
  .password-row { grid-template-columns: 1fr; }
  .modal-actions { flex-direction: column-reverse; }
  .modal-actions button { width: 100%; }
  .mobile-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workspace { padding-bottom: 7.6rem; }
}

@media print {
  body * { visibility: hidden; }
  #receiptContent, #receiptContent * { visibility: visible; }
  #receiptContent {
    position: fixed;
    inset: 0;
    width: 100%;
    border-radius: 0;
  }
  .no-print { display: none !important; }
}