:root {
  --teal: #0f766e;
  --teal-dark: #115e59;
  --sidebar-w: 272px;
  --topbar-h: 68px;
  --border: #d8dee4;
}

html,
body {
  min-height: 100%;
}

body {
  background: #f6f8fb;
  overflow-x: hidden;
}

[data-bs-theme="dark"],
[data-bs-theme="dark"] body {
  background: #111827;
}

.text-teal { color: var(--teal); }
.btn-teal {
  --bs-btn-bg: var(--teal);
  --bs-btn-border-color: var(--teal);
  --bs-btn-hover-bg: var(--teal-dark);
  --bs-btn-hover-border-color: var(--teal-dark);
  color: #fff;
}

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

.app-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--bs-body-bg);
  border-right: 1px solid var(--border);
  flex-direction: column;
  z-index: 1030;
}

[data-bs-theme="dark"] .app-sidebar,
[data-bs-theme="dark"] .app-topbar,
[data-bs-theme="dark"] .panel,
[data-bs-theme="dark"] .metric-card {
  border-color: #263241;
}

.sidebar-brand {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  text-decoration: none;
  color: var(--bs-body-color);
  font-weight: 800;
  border-bottom: 1px solid var(--border);
}

.brand-mark-mini {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  display: grid;
  place-items: center;
}

.sidebar-nav,
.mobile-nav {
  padding: 12px;
  display: grid;
  gap: 4px;
  overflow-y: auto;
}

.sidebar-nav {
  flex: 1;
}

.sidebar-link {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  border-radius: 8px;
  color: var(--bs-body-color);
  text-decoration: none;
  white-space: nowrap;
}

.sidebar-link:hover {
  background: rgba(15, 118, 110, .08);
  color: var(--teal);
}

.sidebar-link.active {
  background: var(--teal);
  color: #fff;
}

.sidebar-link i {
  width: 20px;
  text-align: center;
  font-size: 1.05rem;
}

.sidebar-footer {
  padding: 14px 18px;
  border-top: 1px solid var(--border);
}

.app-main {
  width: 100%;
  min-width: 0;
}

@media (min-width: 1200px) {
  .app-main {
    margin-left: var(--sidebar-w);
  }
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 1020;
  min-height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: rgba(var(--bs-body-bg-rgb), .96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.topbar-app-name {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-branch {
  max-width: 220px;
  display: inline-block;
  color: var(--bs-secondary-color);
  font-size: .875rem;
}

.app-content {
  height: calc(100vh - var(--topbar-h));
  overflow: auto;
  padding: 18px;
}

@media (max-width: 575.98px) {
  .app-content {
    padding: 12px;
  }

  .app-topbar {
    padding: 8px 10px;
  }

  .topbar-branch {
    max-width: 100px;
  }
}

.min-w-0 {
  min-width: 0;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 18px;
  background:
    linear-gradient(120deg, rgba(15,118,110,.92), rgba(37,99,235,.78)),
    url("https://images.unsplash.com/photo-1579154204601-01588f351e67?auto=format&fit=crop&w=1600&q=80") center/cover;
}

.login-panel {
  width: min(440px, calc(100vw - 32px));
  background: rgba(255,255,255,.96);
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 8px;
  padding: 32px;
  box-shadow: 0 24px 70px rgba(15,23,42,.28);
}

.brand-mark {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
}

.metric-card,
.panel {
  background: var(--bs-body-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 8px 24px rgba(15,23,42,.04);
  max-width: 100%;
}

.panel-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.metric-card i {
  font-size: 1.35rem;
  color: var(--teal);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
}

.table {
  min-width: 760px;
}

.panel .table:last-child {
  margin-bottom: 0;
}

.test-picker {
  display: grid;
  gap: 8px;
  max-height: 360px;
  overflow: auto;
  padding-right: 2px;
}

.test-option {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}

.test-option span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.barcode {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  background: #eef6f5;
  color: #0f766e;
  border-radius: 6px;
  padding: 4px 8px;
}

.invoice-actions,
.mini-form {
  min-width: 360px;
}

.mini-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 6px;
}

.mini-form button {
  grid-column: 1 / -1;
}

.sample-status-form {
  min-width: 260px;
}

pre {
  max-width: 100%;
  white-space: pre-wrap;
  overflow: auto;
  font-size: .8rem;
}

.brand-preview {
  width: 160px;
  min-height: 80px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: grid;
  place-items: center;
  padding: 8px;
  background: #fff;
}

.brand-preview img {
  max-width: 100%;
  max-height: 90px;
  object-fit: contain;
}

.invoice-print {
  max-width: 900px;
  margin: 24px auto;
  background: var(--bs-body-bg);
  padding: 32px;
  border: 1px solid var(--border);
}

.invoice-logo {
  width: 86px;
  height: 86px;
  object-fit: contain;
}

@media (max-width: 767.98px) {
  .login-panel {
    padding: 24px;
  }

  .metric-card,
  .panel {
    padding: 14px;
  }

  .mini-form {
    min-width: 300px;
    grid-template-columns: 1fr;
  }
}

@media print {
  .app-sidebar,
  .app-topbar,
  .offcanvas,
  .no-print {
    display: none !important;
  }

  .app-main {
    margin-left: 0 !important;
  }

  .app-content {
    height: auto;
    overflow: visible;
    padding: 0;
  }

  .invoice-print {
    border: 0;
    margin: 0;
    max-width: none;
  }
}