:root {
  --lab-ink: #10241f;
  --lab-teal: #0f766e;
  --lab-teal-dark: #0b4f4a;
  --lab-mint: #d8f3ee;
  --lab-bg: #eef7f4;
  --lab-card: #ffffff;
  --lab-line: #cfe6e1;
  --lab-muted: #5b746e;
  --lab-shadow: 0 10px 30px rgba(16, 36, 31, 0.08);
}

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

body.lab-app {
  font-family: "Manrope", system-ui, sans-serif;
  color: var(--lab-ink);
  background:
    radial-gradient(1400px 600px at 50% -180px, rgba(15, 118, 110, 0.16), transparent 55%),
    linear-gradient(180deg, #f7fbfa 0%, var(--lab-bg) 40%, #e7f3ef 100%);
  min-height: 100vh;
}

.lab-shell {
  max-width: 430px;
  margin: 0 auto;
  min-height: 100vh;
  background: transparent;
  box-shadow: 0 0 50px rgba(15, 118, 110, 0.08);
}

.lab-header {
  background: linear-gradient(135deg, var(--lab-teal) 0%, var(--lab-teal-dark) 100%);
  color: #fff;
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.lab-header-bar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lab-brand {
  color: #fff;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  flex: 1;
  min-width: 0;
}

.lab-brand:hover { color: #fff; }

.lab-icon-btn {
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 12px;
  background: rgba(255,255,255,0.14);
  color: #fff;
  display: grid;
  place-items: center;
  text-decoration: none;
  font-size: 1.2rem;
  line-height: 1;
}

.lab-icon-btn:hover { color: #fff; background: rgba(255,255,255,0.22); }

.lab-menu .btn { text-align: left; }

.lab-main {
  padding: 18px 16px 88px;
}

.lab-hero-card {
  animation: lab-rise 320ms ease-out;
}

.lab-kicker {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lab-teal);
}

.lab-title {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0.15rem 0 0.35rem;
  line-height: 1.15;
}

.lab-sub { color: var(--lab-muted); margin: 0; }
.lab-muted { color: var(--lab-muted); font-size: 0.875rem; }

.lab-cta {
  background: var(--lab-teal);
  border-color: var(--lab-teal);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 14px 16px;
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(15, 118, 110, 0.25);
}

.lab-cta:hover {
  background: var(--lab-teal-dark);
  border-color: var(--lab-teal-dark);
}

.lab-tile {
  display: block;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--lab-line);
  border-radius: 16px;
  padding: 18px 14px;
  text-align: center;
  text-decoration: none;
  color: var(--lab-teal-dark);
  font-weight: 700;
}

.lab-tile:hover { color: var(--lab-teal-dark); box-shadow: var(--lab-shadow); }

.lab-card {
  background: var(--lab-card);
  border: 1px solid rgba(207, 230, 225, 0.8);
  border-radius: 18px;
  padding: 16px;
  box-shadow: var(--lab-shadow);
}

.lab-row { border-bottom: 1px solid #edf5f3; }
.lab-row:last-child { border-bottom: 0; }

.lab-totals {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--lab-line);
  display: grid;
  gap: 6px;
}

.lab-due { color: var(--lab-teal-dark); font-size: 1.05rem; }
.lab-amount { font-weight: 800; color: var(--lab-teal-dark); }

.lab-test-grid {
  display: grid;
  gap: 10px;
}

.lab-test-pick {
  display: block;
  cursor: pointer;
}

.lab-test-pick input { position: absolute; opacity: 0; pointer-events: none; }

.lab-test-pick-body {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--lab-line);
  border-radius: 14px;
  padding: 14px 16px;
}

.lab-test-pick.is-on .lab-test-pick-body {
  border-color: var(--lab-teal);
  background: var(--lab-mint);
  box-shadow: inset 0 0 0 1px var(--lab-teal);
}

.lab-sticky-actions {
  position: sticky;
  bottom: 0;
  padding: 12px 0 8px;
  background: linear-gradient(180deg, transparent, var(--lab-bg) 30%);
}

.lab-success-mark {
  width: 56px;
  height: 56px;
  margin: 0 auto 10px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--lab-mint);
  color: var(--lab-teal-dark);
  font-size: 1.5rem;
  font-weight: 800;
}

.lab-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  margin-bottom: 18px;
}

.lab-step { text-align: center; opacity: 0.45; }
.lab-step.is-done, .lab-step.is-current { opacity: 1; }

.lab-step-dot {
  width: 26px;
  height: 26px;
  margin: 0 auto 4px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-weight: 800;
  background: #fff;
  border: 1px solid var(--lab-line);
  color: var(--lab-muted);
}

.lab-step.is-done .lab-step-dot,
.lab-step.is-current .lab-step-dot {
  background: var(--lab-teal);
  border-color: var(--lab-teal);
  color: #fff;
}

.lab-step-label { font-size: 0.65rem; font-weight: 700; color: var(--lab-muted); }
.lab-step.is-current .lab-step-label { color: var(--lab-teal-dark); }

.lab-result-grid {
  display: grid;
  gap: 12px;
}

.lab-home-grid { display: grid; gap: 16px; }

.btn-primary { background: var(--lab-teal); border-color: var(--lab-teal); }
.btn-primary:hover, .btn-primary:disabled { background: var(--lab-teal-dark); border-color: var(--lab-teal-dark); }

.form-control, .form-select, .input-group-text {
  border-radius: 12px;
  border-color: var(--lab-line);
}

.form-control:focus, .form-select:focus {
  border-color: var(--lab-teal);
  box-shadow: 0 0 0 0.2rem rgba(15, 118, 110, 0.15);
}

.form-control-lg, .btn-lg { min-height: 48px; }

/* Admin / catalog smart UI */
.lab-admin-hero { animation: lab-rise 320ms ease-out; }
.lab-back-link { color: var(--lab-teal); text-decoration: none; font-weight: 700; font-size: 0.9rem; }
.lab-back-link:hover { color: var(--lab-teal-dark); }

.lab-smart-grid {
  display: grid;
  gap: 14px;
}

.lab-smart-card {
  display: block;
  background: linear-gradient(145deg, #fff 0%, #f4fbf9 100%);
  border: 1px solid var(--lab-line);
  border-radius: 20px;
  padding: 18px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--lab-shadow);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.lab-smart-card:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.35);
  box-shadow: 0 16px 36px rgba(15, 118, 110, 0.12);
  color: inherit;
}

.lab-smart-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.lab-smart-card-foot {
  font-size: 0.8rem;
  color: var(--lab-muted);
  font-weight: 600;
}

.lab-smart-panel {
  background: #fff;
  border: 1px solid var(--lab-line);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--lab-shadow);
}

.lab-smart-input {
  border-radius: 14px !important;
  border-color: var(--lab-line) !important;
}

.lab-pill {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
}

.lab-pill.is-live { background: var(--lab-mint); color: var(--lab-teal-dark); }
.lab-pill.is-off { background: #eef2f1; color: var(--lab-muted); }
.lab-pill.is-num { background: #e8f4ff; color: #0b4f8a; }
.lab-pill.is-text { background: #fff4e6; color: #9a3412; }

.lab-param-block .lab-range-row,
.lab-param-block .lab-range-add {
  background: #f8fcfb;
  border-radius: 12px;
  padding: 10px;
}

.lab-stat-row {
  display: grid;
  gap: 12px;
}

.lab-stat-card {
  background: linear-gradient(135deg, var(--lab-teal) 0%, var(--lab-teal-dark) 100%);
  color: #fff;
  border-radius: 20px;
  padding: 18px;
  box-shadow: 0 12px 28px rgba(15, 118, 110, 0.25);
}

.lab-stat-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.85;
}

.lab-stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.1;
  margin: 6px 0;
}

.lab-stat-split {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 1.1rem;
}

@keyframes lab-rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 768px) {
  .lab-shell {
    max-width: 980px;
    box-shadow: 0 12px 60px rgba(15, 118, 110, 0.1);
    background: rgba(255,255,255,0.35);
  }

  .lab-main { padding: 24px 28px 64px; }
  .lab-title { font-size: 2rem; }

  .lab-test-grid { grid-template-columns: 1fr 1fr; }
  .lab-result-grid { grid-template-columns: 1fr 1fr; }
  .lab-home-grid { grid-template-columns: 1.1fr 0.9fr; align-items: start; }
  .lab-smart-grid { grid-template-columns: 1fr 1fr; }
  .lab-stat-row { grid-template-columns: 1fr; }
}

@media (min-width: 1200px) {
  .lab-shell { max-width: 1180px; }
  .lab-test-grid { grid-template-columns: 1fr 1fr 1fr; }
  .lab-smart-grid { grid-template-columns: 1fr 1fr; }
  .lab-stat-row { grid-template-columns: 1fr 1fr 1fr; }
}

@media print {
  .lab-header, .lab-steps, .btn, form, .lab-sticky-actions { display: none !important; }
  .lab-shell, body.lab-app { max-width: none; box-shadow: none; background: #fff; }
  .receipt-sheet { box-shadow: none; border: 0; }
}