@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* Colors: The Palette of Trust */
  --primary: #006b62;
  --primary-dim: #005e56;
  --primary-fixed: #004b45;
  --on-primary: #ffffff;
  --surface: #f8f9ff;
  --surface-container-low: #eff4ff;
  --surface-container: #e6eefa;
  --surface-container-highest: #d1e0f9;
  --surface-container-lowest: #ffffff;
  --on-surface: #05345c;
  --on-surface-variant: #4b6a86;
  --tertiary: #6b7280;
  
  --error: #a83836;
  --error-container: #ffdcd8;
  --on-error-container: #3a0907;
  
  --primary-container: #71f7e6;
  --on-primary-container: #00201d;

  --medium-container: #d9e2ff;
  --on-medium-container: #001944;
  
  --outline-variant: rgba(75, 106, 134, 0.2);
  
  /* Tyopgraphy */
  --font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* Typography Scales */
.display-lg { font-size: 4rem; font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
.headline-md { font-size: 1.75rem; font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
.title-md { font-size: 1.125rem; font-weight: 600; line-height: 1.5; }
.body-md { font-size: 1rem; font-weight: 400; line-height: 1.5; color: var(--on-surface-variant); }
.label-md { font-size: 0.875rem; font-weight: 500; letter-spacing: 0.01em; }
.label-sm { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05rem; }

/* The Layering Principle */
.card-lowest {
  background-color: var(--surface-container-lowest);
  border-radius: 1rem;
  padding: 2rem;
  /* Shadow is a whisper */
  box-shadow: 0 8px 16px rgba(5, 52, 92, 0.03);
}

.card-ambient {
  background-color: var(--surface-container-lowest);
  border-radius: 1rem;
  padding: 2.5rem;
  /* Ambient Shadow for floating elements */
  box-shadow: 0 20px 40px rgba(5, 52, 92, 0.06);
}

/* Clinical Primitives (Inputs) */
.clinical-input-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.5rem;
}

.clinical-label {
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05rem;
  margin-bottom: 0.5rem;
}

.clinical-input {
  /* Forgo the box model, use tonal shift */
  background-color: var(--surface-container-low);
  border: none;
  border-radius: 0.125rem;
  padding: 0.875rem 1rem;
  color: var(--on-surface);
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.2s ease;
  width: 100%;
  box-sizing: border-box;
}

.clinical-input::placeholder {
  color: var(--outline-variant);
  opacity: 1; /* override browser default */
}

.clinical-input:focus {
  outline: none;
  background-color: var(--surface-container-lowest);
  border-bottom: 2px solid var(--primary);
  /* Use ghost border for accessibility if needed, but primary bottom border satisfies rule */
  box-shadow: 0 4px 12px rgba(5, 52, 92, 0.04);
}

/* Toggles (No/Yes) */
.clinical-toggle {
  display: flex;
  background-color: var(--surface-container-low);
  border-radius: 9999px;
  padding: 0.25rem;
  width: max-content;
}

.clinical-toggle label {
  padding: 0.375rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: all 0.2s;
}

.clinical-toggle input[type="radio"] {
  display: none;
}

.clinical-toggle input[type="radio"]:checked + label {
  background-color: var(--surface-container-lowest);
  color: var(--on-surface);
  box-shadow: 0 2px 8px rgba(5, 52, 92, 0.08);
}

/* Gradients & Buttons */
.btn-primary-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dim) 100%);
  color: var(--on-primary);
  border: none;
  border-radius: 0.5rem;
  padding: 1rem 2rem;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}

.btn-primary-gradient:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(0, 107, 98, 0.2);
}

/* Tonal Chips */
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05rem;
}

.chip.low {
  background-color: var(--primary-container);
  color: var(--on-primary-container);
}

.chip.medium {
  background-color: var(--medium-container);
  color: var(--on-medium-container);
}

.chip.high {
  background-color: var(--error-container);
  color: var(--on-error-container);
}

/* Layout Utilities */
.glass-header {
  background-color: rgba(248, 249, 255, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--outline-variant);
}

/* Data Tables */
.clinical-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.5rem;
}

.clinical-table th {
  text-align: left;
  padding: 0 1rem 0.75rem 1rem;
  color: var(--on-surface-variant);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05rem;
  border-bottom: none;
}

.clinical-table td {
  padding: 1.25rem 1rem;
  background-color: var(--surface-container-lowest);
  vertical-align: middle;
}

.clinical-table tr td:first-child { border-top-left-radius: 0.5rem; border-bottom-left-radius: 0.5rem; }
.clinical-table tr td:last-child { border-top-right-radius: 0.5rem; border-bottom-right-radius: 0.5rem; }

/* Ghost borders */
.ghost-border {
  border: 1px solid var(--outline-variant);
}

/* Responsive Utilities */
@media (max-width: 992px) {
  .d-none-mobile { display: none !important; }
  .text-center-mobile { text-align: center !important; }
  .w-100-mobile { width: 100% !important; }
}

.m-0 { margin: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-4 { margin-top: 1rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-4 { margin-bottom: 1rem !important; }
.p-0 { padding: 0 !important; }
.ps-3 { padding-left: 0.75rem !important; }
.pe-2 { padding-right: 0.5rem !important; }
.d-flex { display: flex !important; }
.align-items-center { align-items: center !important; }
.justify-content-between { justify-content: space-between !important; }
.gap-2 { gap: 0.5rem !important; }
.text-muted { color: var(--on-surface-variant) !important; }
.text-danger { color: var(--error) !important; }