/* kit.css - Shared styles for patient engagement learning modules */
/* WCAG AA contrast ratios maintained throughout (>= 4.5:1 for text) */

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

:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #595959;
  --color-primary: #005a9c;
  --color-primary-hover: #004070;
  --color-focus: #e65000;

  --color-step-border: #d0d0d0;
  --color-step-bg: #f9f9f9;

  --color-control-bg: #edf4fb;
  --color-control-border: #005a9c;
  --color-control-label-bg: #005a9c;
  --color-control-label-text: #ffffff;

  --color-watchout-bg: #fff5e6;
  --color-watchout-border: #b35900;
  --color-watchout-label-bg: #b35900;
  --color-watchout-label-text: #ffffff;

  --color-cta-bg: #005a9c;
  --color-cta-text: #ffffff;

  --radius: 6px;
  --spacing: 1rem;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing);
}

/* ---- Progress bar ---- */
.progress-bar {
  background: #e0e0e0;
  border-radius: var(--radius);
  padding: 0.5rem var(--spacing);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-muted);
}

/* ---- Step show/hide model ---- */
/* The hidden attribute hides by default; we never override it with CSS
   for [hidden] except to ensure display:none takes effect even if another
   rule would override it (specificity safety net). */
.step[hidden] {
  display: none !important;
}

.step {
  margin-bottom: 2rem;
  animation: fadeIn 0.2s ease-in-out;
}

/* ---- Cards ---- */
.card {
  border: 1px solid var(--color-step-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: var(--color-step-bg);
}

/* ---- Module header ---- */
.module-header h1 {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.applies-to,
.sequence-rule {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-top: 0.25rem;
}

/* ---- Objectives ---- */
.objectives-list {
  margin-top: 0.75rem;
  padding-left: 1.5rem;
}

.objectives-list li {
  margin-bottom: 0.4rem;
}

/* ---- Lesson blocks ---- */
.block {
  border-left: 4px solid var(--color-step-border);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  background: var(--color-step-bg);
  position: relative;
}

/* Standard step block - minimal styling */
.block--step {
  border-left-color: var(--color-step-border);
}

/* Control block - rule/policy - distinct border + background + text label */
.block--control {
  border-left-color: var(--color-control-border);
  background: var(--color-control-bg);
}

/* Watch-out block - warning - distinct border + background + text label */
.block--watch-out {
  border-left-color: var(--color-watchout-border);
  background: var(--color-watchout-bg);
}

/* Text label tags - not color-only: text content "RULE" / "WATCH OUT" */
.block-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.5rem;
}

.block--control .block-label {
  background: var(--color-control-label-bg);
  color: var(--color-control-label-text);
}

.block--watch-out .block-label {
  background: var(--color-watchout-label-bg);
  color: var(--color-watchout-label-text);
}

.block-heading {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.block-citation {
  margin-top: 0.5rem;
  color: var(--color-muted);
}

/* ---- Scenario ---- */
.scenario-setup {
  font-style: italic;
  margin-bottom: 1rem;
  padding: 0.75rem;
  border-left: 3px solid var(--color-step-border);
}

.decision {
  margin-bottom: 1.5rem;
}

.decision-prompt {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.decision-choices {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.choice-btn {
  text-align: left;
  background: #ffffff;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  font-size: 1rem;
  color: var(--color-primary);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.choice-btn:hover {
  background: var(--color-primary);
  color: #ffffff;
}

.choice-btn.is-correct {
  border-color: #1a7a2e;
  background: #e6f4ea;
  color: #1a7a2e;
}

.choice-btn.is-incorrect {
  border-color: #a00;
  background: #fdecea;
  color: #a00;
}

/* ---- Knowledge check ---- */
.kc-note {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 1rem;
}

.kc-item {
  margin-bottom: 1.5rem;
}

.kc-stem {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.kc-options {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.kc-option {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  cursor: pointer;
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius);
}

.kc-option:hover {
  background: #f0f0f0;
}

.kc-option input {
  margin-top: 0.15rem;
  flex-shrink: 0;
}

/* ---- Feedback text ---- */
.feedback-text[hidden] {
  display: none !important;
}

.feedback-text {
  margin-top: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  background: #f0f0f0;
  font-size: 0.9rem;
  color: var(--color-text);
}

/* ---- Recap ---- */
.recap-list {
  padding-left: 1.25rem;
  margin-bottom: 1.5rem;
}

.recap-list li {
  margin-bottom: 0.4rem;
}

/* ---- CTA ---- */
.cta-box {
  background: var(--color-cta-bg);
  color: var(--color-cta-text);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  text-align: center;
  margin-top: 1.5rem;
}

.cta-instruction {
  margin-bottom: 0.5rem;
}

.cta-action {
  font-size: 1.1rem;
}

/* ---- Navigation ---- */
.step-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-step-border);
}

.nav-btn {
  padding: 0.6rem 1.5rem;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  font-size: 1rem;
  cursor: pointer;
  background: #ffffff;
  color: var(--color-primary);
  transition: background 0.15s, color 0.15s;
}

.nav-btn:hover:not(:disabled) {
  background: var(--color-primary);
  color: #ffffff;
}

.nav-btn--next {
  background: var(--color-primary);
  color: #ffffff;
}

.nav-btn--next:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---- Focus visibility - WCAG 2.4.11 ---- */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

button:focus-visible,
input:focus-visible,
label:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---- Animations ---- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .step {
    animation: none;
  }
}