/* ==========================================================================
   MERIDIAN — GSM & rUTI ASSESSMENT DASHBOARD
   Design tokens
   ========================================================================== */

:root, [data-theme="light"] {
  /* Surfaces — warm ivory, calm & clinical-but-human */
  --color-bg: #FAF8F4;
  --color-surface: #FFFFFF;
  --color-surface-2: #FDFCFA;
  --color-surface-offset: #F3EFE7;
  --color-surface-offset-2: #EDE7DB;
  --color-border: #E3DDD1;
  --color-divider: #EAE4D8;

  /* Text */
  --color-text: #26302A;
  --color-text-muted: #6B7268;
  --color-text-faint: #A7AC9F;
  --color-text-inverse: #FAF8F4;

  /* Primary accent — Truth for Health Foundation green */
  --color-primary: #2F8C46;
  --color-primary-hover: #256F38;
  --color-primary-active: #1D582D;
  --color-primary-highlight: #DFF0E1;

  /* Brand accent — Truth for Health Foundation magenta (wordmark & logo detail only) */
  --color-brand-accent: #93278F;

  /* Warning — warm amber (needs discussion / caution) */
  --color-warning: #B9762B;
  --color-warning-hover: #96601F;
  --color-warning-highlight: #F2E3CC;

  /* Error — needs evaluation first */
  --color-error: #A13B3B;
  --color-error-hover: #832F2F;
  --color-error-highlight: #F1D9D6;

  /* Success — meets criteria */
  --color-success: #4A7C43;
  --color-success-hover: #3A6234;
  --color-success-highlight: #DDEAD7;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(38, 48, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(38, 48, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(38, 48, 42, 0.14);

  --transition-interactive: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Public Sans', 'Helvetica Neue', Arial, sans-serif;
}

[data-theme="dark"] {
  --color-bg: #171A17;
  --color-surface: #1D211D;
  --color-surface-2: #22261F;
  --color-surface-offset: #262A24;
  --color-surface-offset-2: #2C312A;
  --color-border: #383D34;
  --color-divider: #2C312A;

  --color-text: #E6E4D9;
  --color-text-muted: #9A9F91;
  --color-text-faint: #656B5D;
  --color-text-inverse: #1D211D;

  --color-primary: #5FCB79;
  --color-primary-hover: #7DD891;
  --color-primary-active: #9BE3AC;
  --color-primary-highlight: #21361F;

  --color-brand-accent: #D98AD3;

  --color-warning: #DDA362;
  --color-warning-hover: #E8B77F;
  --color-warning-highlight: #40331F;

  --color-error: #D6817E;
  --color-error-hover: #E1A09D;
  --color-error-highlight: #3E2523;

  --color-success: #8FC084;
  --color-success-hover: #A6CF9C;
  --color-success-highlight: #263A22;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #171A17;
    --color-surface: #1D211D;
    --color-surface-2: #22261F;
    --color-surface-offset: #262A24;
    --color-surface-offset-2: #2C312A;
    --color-border: #383D34;
    --color-divider: #2C312A;
    --color-text: #E6E4D9;
    --color-text-muted: #9A9F91;
    --color-text-faint: #656B5D;
    --color-text-inverse: #1D211D;
    --color-primary: #5FCB79;
    --color-primary-hover: #7DD891;
    --color-primary-active: #9BE3AC;
    --color-primary-highlight: #21361F;
    --color-brand-accent: #D98AD3;
    --color-warning: #DDA362;
    --color-warning-highlight: #40331F;
    --color-error: #D6817E;
    --color-error-highlight: #3E2523;
    --color-success: #8FC084;
    --color-success-highlight: #263A22;
  }
}

/* ==========================================================================
   BASE
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 0.9rem + 0.2vw, 1rem);
  line-height: 1.55;
  color: var(--color-text);
  background: var(--color-bg);
  overflow: hidden;
}

h1, h2, h3, h4 { font-family: var(--font-display); text-wrap: balance; line-height: 1.2; color: var(--color-text); }
p, li { text-wrap: pretty; }

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

a, button, [role="button"], input, select, textarea {
  transition: color var(--transition-interactive), background var(--transition-interactive),
    border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

table { border-collapse: collapse; width: 100%; }

/* ==========================================================================
   LAYOUT — golden dashboard pattern
   ========================================================================== */

.app {
  height: 100dvh;
  display: grid;
  grid-template-rows: auto auto 1fr;
}

.topbar {
  grid-row: 1;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 20;
  flex-wrap: wrap;
}

.topbar__brand { display: flex; align-items: center; gap: 0.625rem; flex-shrink: 0; }
.logo { flex-shrink: 0; height: 38px; width: auto; display: block; }
.topbar__title { display: flex; flex-direction: column; line-height: 1.1; }
.topbar__name { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.brand-hl { color: var(--color-brand-accent); }
.topbar__sub { font-size: 0.72rem; color: var(--color-text-muted); letter-spacing: 0.01em; }

.brand-strip {
  grid-row: 2;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  text-align: center;
  font-size: 0.74rem;
  padding: 0.4rem 1rem;
}
.brand-strip a { color: var(--color-text-inverse); text-decoration: underline; font-weight: 600; }

.report-letterhead {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-divider);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}
.report-letterhead strong { color: var(--color-text); }

.topbar__nav { display: flex; gap: 0.375rem; flex: 1; flex-wrap: wrap; }

.navstep {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  white-space: nowrap;
}
.navstep:hover { background: var(--color-surface-offset); color: var(--color-text); }
.navstep.is-active { background: var(--color-primary-highlight); color: var(--color-primary); font-weight: 600; }

.topbar__actions { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }

.icon-btn {
  display: grid; place-items: center;
  width: 2.1rem; height: 2.1rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.icon-btn:hover { background: var(--color-surface-offset); color: var(--color-text); }

.btn {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-md);
  white-space: nowrap;
}
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); }
.btn--ghost { background: transparent; color: var(--color-text-muted); border: 1px solid var(--color-border); }
.btn--ghost:hover { color: var(--color-text); background: var(--color-surface-offset); }
.btn--sm { padding: 0.4rem 0.8rem; font-size: 0.78rem; }
.btn--danger-ghost { color: var(--color-error); }

.main {
  grid-row: 3;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 1.75rem 1.5rem 4rem;
  display: flex;
  justify-content: center;
}

.panel {
  display: none;
  width: 100%;
  max-width: 880px;
  flex-direction: column;
  gap: 1.25rem;
}
.panel.is-active { display: flex; }

.panel__intro { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 0.25rem; }
.page-title { font-size: clamp(1.35rem, 1.1rem + 0.9vw, 1.7rem); font-weight: 600; }
.page-desc { color: var(--color-text-muted); font-size: 0.9rem; max-width: 68ch; }
.page-desc strong { color: var(--color-text); }

/* ==========================================================================
   CARDS
   ========================================================================== */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.375rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.card--flag { border-color: var(--color-border); }
.card-title { font-size: 1rem; font-weight: 600; }
.card-title-row { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; flex-wrap: wrap; }
.hint { font-size: 0.75rem; color: var(--color-text-faint); }

.field-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-top: 1rem; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field--full { width: 100%; }
.field label { font-size: 0.78rem; font-weight: 600; color: var(--color-text-muted); }
.field input, .field select {
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-size: 0.9rem;
}
.field input:focus, .field select:focus { border-color: var(--color-primary); }

/* Symptom rows */
.symptom-list { display: flex; flex-direction: column; gap: 0.65rem; }
.symptom-row {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.15rem;
  border-bottom: 1px solid var(--color-divider);
}
.symptom-row:last-child { border-bottom: none; }
.symptom-name { font-size: 0.9rem; font-weight: 500; }
.symptom-desc { font-size: 0.76rem; color: var(--color-text-faint); display: block; margin-top: 0.1rem; }

.severity-group { display: inline-flex; border-radius: var(--radius-full); background: var(--color-surface-offset); padding: 0.2rem; gap: 0.15rem; }
.severity-opt { position: relative; }
.severity-opt input { position: absolute; opacity: 0; width: 0; height: 0; }
.severity-opt label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  cursor: pointer;
  white-space: nowrap;
}
.severity-opt input:checked + label { background: var(--color-primary); color: var(--color-text-inverse); }
.severity-opt input:focus-visible + label { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* Flag checkboxes */
.check-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 0.6rem; }
.check-item {
  display: flex; align-items: flex-start; gap: 0.6rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-2);
}
.check-item input { margin-top: 0.15rem; width: 1rem; height: 1rem; accent-color: var(--color-primary); flex-shrink: 0; }
.check-item span { font-size: 0.85rem; }
.check-item .check-sub { display: block; font-size: 0.74rem; color: var(--color-text-faint); margin-top: 0.15rem; }

.step-actions { display: flex; justify-content: flex-end; margin-top: 0.5rem; }
.step-actions--split { justify-content: space-between; }

/* ==========================================================================
   KPI ROW + CHART
   ========================================================================== */

.kpi-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.85rem; }
.kpi {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0.95rem 1rem;
  display: flex; flex-direction: column; gap: 0.3rem;
  box-shadow: var(--shadow-sm);
}
.kpi-label { font-size: 0.72rem; color: var(--color-text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.02em; }
.kpi-value { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums lining-nums; font-family: var(--font-display); }
.kpi-value--sm { font-size: 1.05rem; font-family: var(--font-body); }
.kpi--flag { border-color: var(--color-border); transition: background var(--transition-interactive), border-color var(--transition-interactive); }
.kpi--flag.is-met { background: var(--color-warning-highlight); border-color: var(--color-warning); }
.kpi--flag.is-met .kpi-value { color: var(--color-warning); }

.chart-wrap { height: 220px; position: relative; }

/* ==========================================================================
   EPISODE TABLE
   ========================================================================== */

.table-wrap { overflow-x: auto; }
.episode-table { min-width: 560px; }
.episode-table th {
  text-align: left; font-size: 0.72rem; font-weight: 600; color: var(--color-text-muted);
  text-transform: uppercase; letter-spacing: 0.02em;
  padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--color-border);
}
.episode-table td { padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--color-divider); vertical-align: middle; }
.episode-table input[type="date"], .episode-table input[type="text"], .episode-table select {
  width: 100%; padding: 0.4rem 0.5rem; border-radius: var(--radius-sm);
  border: 1px solid var(--color-border); background: var(--color-surface-2); font-size: 0.83rem;
}
.row-remove {
  color: var(--color-text-faint); padding: 0.3rem; border-radius: var(--radius-sm);
}
.row-remove:hover { color: var(--color-error); background: var(--color-error-highlight); }
.empty-state { text-align: center; color: var(--color-text-faint); font-size: 0.85rem; padding: 1.5rem 0.5rem; }

/* ==========================================================================
   REPORT
   ========================================================================== */

.report { display: flex; flex-direction: column; gap: 1.1rem; }

.report-status {
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.6rem;
  border: 1px solid var(--color-border);
  display: flex; flex-direction: column; gap: 0.6rem;
}
.report-status.status-candidate { background: var(--color-success-highlight); border-color: var(--color-success); }
.report-status.status-workup { background: var(--color-error-highlight); border-color: var(--color-error); }
.report-status.status-monitor { background: var(--color-warning-highlight); border-color: var(--color-warning); }
.report-status.status-unlikely { background: var(--color-surface-offset); border-color: var(--color-border); }

.status-eyebrow { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.status-candidate .status-eyebrow { color: var(--color-success); }
.status-workup .status-eyebrow { color: var(--color-error); }
.status-monitor .status-eyebrow { color: var(--color-warning); }
.status-unlikely .status-eyebrow { color: var(--color-text-muted); }

.status-headline { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.1rem, 1rem + 0.6vw, 1.35rem); }
.status-body { font-size: 0.9rem; color: var(--color-text); max-width: 68ch; }

.report-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.report-card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem; display: flex; flex-direction: column; gap: 0.7rem;
}
.report-card h3 { font-size: 0.95rem; font-weight: 600; }

.summary-table { width: 100%; font-size: 0.85rem; }
.summary-table td { padding: 0.35rem 0; border-bottom: 1px solid var(--color-divider); }
.summary-table td:first-child { color: var(--color-text-muted); }
.summary-table td:last-child { text-align: right; font-weight: 600; }
.sev-badge { display: inline-block; padding: 0.15rem 0.55rem; border-radius: var(--radius-full); font-size: 0.72rem; font-weight: 700; }
.sev-0 { color: var(--color-text-faint); background: var(--color-surface-offset); }
.sev-1 { color: var(--color-text); background: var(--color-surface-offset-2); }
.sev-2 { color: var(--color-warning); background: var(--color-warning-highlight); }
.sev-3 { color: var(--color-error); background: var(--color-error-highlight); }

.talk-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; font-size: 0.87rem; }
.talk-list li { display: flex; gap: 0.55rem; align-items: flex-start; }
.talk-list li::before { content: "→"; color: var(--color-primary); font-weight: 700; flex-shrink: 0; }

.caution-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; font-size: 0.87rem; }
.caution-list li { display: flex; gap: 0.55rem; align-items: flex-start; }
.caution-list li::before { content: "!"; color: var(--color-warning); font-weight: 800; flex-shrink: 0; width: 1.1rem; height: 1.1rem; border-radius: 50%; background: var(--color-warning-highlight); text-align: center; font-size: 0.7rem; line-height: 1.1rem; }

.guideline-note {
  background: var(--color-surface-offset); border-radius: var(--radius-md); padding: 0.9rem 1rem;
  font-size: 0.8rem; color: var(--color-text-muted); display: flex; flex-direction: column; gap: 0.4rem;
}
.guideline-note a { color: var(--color-primary); text-decoration: underline; text-decoration-color: var(--color-primary-highlight); }
.disclaimer { font-size: 0.76rem; color: var(--color-text-faint); border-top: 1px solid var(--color-divider); padding-top: 0.9rem; }
.disclaimer a { color: var(--color-primary); text-decoration: underline; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 860px) {
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .report-grid { grid-template-columns: 1fr; }
  .topbar { padding: 0.65rem 1rem; }
  .topbar__nav { order: 3; width: 100%; justify-content: flex-start; }
}
@media (max-width: 560px) {
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .symptom-row { grid-template-columns: 1fr; }
  .severity-group { flex-wrap: wrap; }
  .main { padding: 1.25rem 0.85rem 3rem; }
}

/* ==========================================================================
   MODAL — used instead of window.confirm()/window.alert(), which browsers
   block when this app is shown inside a restricted preview iframe
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 24, 20, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 100;
}
.modal-overlay[hidden] { display: none; }
.modal-card {
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 14px;
  padding: 1.5rem;
  max-width: 380px;
  width: 100%;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
}
.modal-card p { font-size: 0.95rem; line-height: 1.5; margin: 0 0 1.25rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.625rem; }

/* ==========================================================================
   PRINT — Readiness Report only
   ========================================================================== */

@media print {
  .topbar, .main { overflow: visible !important; }
  .app { height: auto; }
  .topbar, .brand-strip, .panel__intro--noprint, .step-actions, .modal-overlay { display: none !important; }
  #panel-screen, #panel-tracker { display: none !important; }
  #panel-report { display: flex !important; }
  .main { padding: 0; }
  body { background: #fff; color: #111; }
  .report-status, .report-card, .guideline-note { box-shadow: none !important; break-inside: avoid; }
}