/* ==========================================================================
   CyberAware Initiative — "Using Claude Code" Course
   Course-specific components. Built on the shared design tokens
   (variables.css). Loaded only on ai-course*.html pages.
   ========================================================================== */

:root {
  /* Course echoes the approved dark tactical-board palette (see career map) */
  --course-board-bg:   #0A1628;
  --course-board-bg-2: #0F1E36;
  --course-board-line: rgba(148, 163, 184, 0.18);
  --course-term-text:  #E2E8F0;
  --course-term-mute:  #94A3B8;
  --course-term-green: #4ADE80;
  --course-term-amber: #FBBF24;
  --course-term-blue:  #38BDF8;
}

/* ==========================================================================
   COURSE HERO — dark board with subtle grid + glow, syllabus label
   ========================================================================== */

.ca-course-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1100px 420px at 50% -10%, rgba(27, 110, 194, 0.20), transparent 60%),
    radial-gradient(700px 320px at 90% 110%, rgba(13, 148, 136, 0.14), transparent 60%),
    linear-gradient(180deg, var(--course-board-bg-2), var(--course-board-bg));
  color: var(--color-white);
  padding: var(--space-20) 0 var(--space-16);
  text-align: center;
}

.ca-course-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(148, 163, 184, 0.16) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.6), rgba(0,0,0,1) 35%, rgba(0,0,0,0.4));
          mask-image: linear-gradient(180deg, rgba(0,0,0,0.6), rgba(0,0,0,1) 35%, rgba(0,0,0,0.4));
}

.ca-course-hero > .container { position: relative; z-index: 2; }

.ca-course-hero h1 { color: var(--color-white); margin-bottom: var(--space-4); }

.ca-course-hero p {
  color: rgba(226, 232, 240, 0.82);
  font-size: var(--font-size-lg);
  max-width: 640px;
  margin-inline: auto;
}

/* Eyebrow / syllabus label */
.ca-course-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--course-term-blue);
  margin-bottom: var(--space-5);
}

.ca-course-eyebrow::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--course-term-blue);
  box-shadow: 0 0 10px var(--course-term-blue);
}

.ca-course-hero__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3) var(--space-5);
  margin-top: var(--space-8);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--course-term-mute);
}

.ca-course-hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.ca-course-hero__actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-8);
}

@media (max-width: 768px) {
  .ca-course-hero { padding: var(--space-16) 0 var(--space-12); }
  .ca-course-hero__actions { flex-direction: column; }
}

/* ==========================================================================
   PILLS / BADGES
   ========================================================================== */

.ca-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: var(--radius-full);
  background: rgba(27, 110, 194, 0.12);
  color: var(--color-action);
}

.ca-pill--teal  { background: rgba(13, 148, 136, 0.12); color: var(--color-accent); }
.ca-pill--amber { background: rgba(217, 119, 6, 0.14);  color: var(--color-cta); }
.ca-pill--members {
  background: rgba(217, 119, 6, 0.16);
  color: var(--color-cta);
}
.ca-pill--on-dark {
  background: rgba(255, 255, 255, 0.10);
  color: var(--course-term-text);
}

/* ==========================================================================
   MEMBERS LOCK BANNER (soft gate on module pages)
   ========================================================================== */

.ca-lock-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: rgba(217, 119, 6, 0.07);
  border: 1px solid rgba(217, 119, 6, 0.30);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-8);
}

.ca-lock-banner__icon {
  flex-shrink: 0;
  color: var(--color-cta);
  margin-top: 2px;
}

.ca-lock-banner__title {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  margin-bottom: var(--space-1);
  font-size: var(--font-size-base);
}

.ca-lock-banner p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.ca-lock-banner a { font-weight: var(--font-weight-semibold); }

/* ==========================================================================
   MODULE TRACK (hub) — numbered curriculum cards
   ========================================================================== */

.ca-module-track {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  counter-reset: module;
}

.ca-module-card {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-action);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.ca-module-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: inherit;
}

.ca-module-card__num {
  font-family: var(--font-mono);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-action);
  line-height: 1;
  text-align: center;
}

.ca-module-card__num small {
  display: block;
  font-family: var(--font-heading);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.ca-module-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-heading);
  margin-bottom: var(--space-1);
}

.ca-module-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}

.ca-module-card__meta {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.ca-module-card__cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  color: var(--color-action);
  white-space: nowrap;
}

/* completed state (set by course.js from localStorage) */
.ca-module-card.is-done { border-left-color: var(--color-success); }
.ca-module-card.is-done .ca-module-card__num { color: var(--color-success); }
.ca-module-card__done-tick {
  display: none;
  color: var(--color-success);
}
.ca-module-card.is-done .ca-module-card__done-tick { display: inline-flex; }

.ca-module-card:nth-child(2) { border-left-color: var(--color-accent); }
.ca-module-card:nth-child(2):not(.is-done) .ca-module-card__num { color: var(--color-accent); }
.ca-module-card:nth-child(2):not(.is-done) .ca-module-card__cta { color: var(--color-accent); }

@media (max-width: 768px) {
  .ca-module-card {
    grid-template-columns: 56px 1fr;
    gap: var(--space-4);
  }
  .ca-module-card__cta { grid-column: 2; }
}

/* ==========================================================================
   LESSON SCAFFOLD — breadcrumb, header, progress rail, footer nav
   ========================================================================== */

.ca-breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}
.ca-breadcrumb a { color: var(--color-text-secondary); text-decoration: none; }
.ca-breadcrumb a:hover { color: var(--color-action); }
.ca-breadcrumb span { margin: 0 var(--space-2); opacity: 0.5; }

/* Progress dots showing module N of 5 */
.ca-progress-rail {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-5) 0 0;
  flex-wrap: wrap;
}
.ca-progress-rail__dot {
  width: 30px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-border);
}
.ca-progress-rail__dot.is-current { background: var(--color-action); }
.ca-progress-rail__dot.is-done { background: var(--color-accent); }
.ca-progress-rail__label {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-left: var(--space-2);
}

/* "What you'll learn" objectives box */
.ca-objectives {
  background: rgba(13, 148, 136, 0.06);
  border: 1px solid rgba(13, 148, 136, 0.25);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-8);
}
.ca-objectives__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}
.ca-objectives ul { list-style: none; padding: 0; margin: 0; }
.ca-objectives li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}
.ca-objectives li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ==========================================================================
   CALLOUTS — key idea / try it / warning / note
   ========================================================================== */

.ca-callout {
  position: relative;
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
  border-left: 4px solid var(--color-action);
  background: rgba(27, 110, 194, 0.05);
}
.ca-callout__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-action);
  margin-bottom: var(--space-2);
}
.ca-callout p:last-child { margin-bottom: 0; }
.ca-callout p { font-size: var(--font-size-base); }

.ca-callout--try {
  border-left-color: var(--color-accent);
  background: rgba(13, 148, 136, 0.06);
}
.ca-callout--try .ca-callout__label { color: var(--color-accent); }

.ca-callout--warn {
  border-left-color: var(--color-cta);
  background: rgba(217, 119, 6, 0.07);
}
.ca-callout--warn .ca-callout__label { color: var(--color-cta); }

.ca-callout--note {
  border-left-color: var(--color-text-secondary);
  background: var(--color-white);
}
.ca-callout--note .ca-callout__label { color: var(--color-text-secondary); }

/* ==========================================================================
   TERMINAL / PROMPT BLOCKS — dark board, mono
   ========================================================================== */

.ca-terminal {
  background: var(--course-board-bg);
  border: 1px solid var(--course-board-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-6) 0;
  box-shadow: 0 18px 40px -24px rgba(10, 22, 40, 0.6);
}

.ca-terminal__bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--course-board-bg-2);
  border-bottom: 1px solid var(--course-board-line);
}
.ca-terminal__dot { width: 11px; height: 11px; border-radius: 50%; background: #475569; }
.ca-terminal__dot--r { background: #EF4444; }
.ca-terminal__dot--y { background: #F59E0B; }
.ca-terminal__dot--g { background: #22C55E; }
.ca-terminal__title {
  margin-left: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--course-term-mute);
}

.ca-terminal__body {
  padding: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  line-height: 1.7;
  color: var(--course-term-text);
  overflow-x: auto;
}
.ca-terminal__body pre { margin: 0; white-space: pre-wrap; word-break: break-word; }

/* inline coloured spans for terminal content */
.ca-t-prompt  { color: var(--course-term-green); }   /* the $ / > prompt char */
.ca-t-cmd     { color: var(--course-term-blue); }     /* a command or slash command */
.ca-t-mute    { color: var(--course-term-mute); }     /* comments / output */
.ca-t-amber   { color: var(--course-term-amber); }
.ca-t-you     { color: var(--course-term-text); font-weight: 600; }

/* ==========================================================================
   WEAK vs STRONG PROMPT COMPARISON
   ========================================================================== */

.ca-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin: var(--space-6) 0;
}
.ca-compare__col {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background: var(--color-white);
}
.ca-compare__col--weak  { border-top: 3px solid var(--color-error); }
.ca-compare__col--strong{ border-top: 3px solid var(--color-success); }

.ca-compare__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.ca-compare__col--weak   .ca-compare__tag { color: var(--color-error); }
.ca-compare__col--strong .ca-compare__tag { color: var(--color-success); }

.ca-compare__quote {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
}
.ca-compare__why { font-size: var(--font-size-sm); color: var(--color-text-secondary); margin: 0; }

@media (max-width: 768px) {
  .ca-compare { grid-template-columns: 1fr; }
}

/* ==========================================================================
   KEY-TERM CHIPS / DEFINITION LIST
   ========================================================================== */

.ca-glossary {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}
.ca-glossary__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  background: var(--color-white);
}
.ca-glossary__term {
  font-family: var(--font-mono);
  font-weight: var(--font-weight-bold);
  color: var(--color-action);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-1);
}
.ca-glossary__def { font-size: var(--font-size-sm); color: var(--color-text-secondary); margin: 0; }

/* steps list with big numerals */
.ca-steps { counter-reset: step; list-style: none; padding: 0; margin: var(--space-6) 0; }
.ca-steps > li {
  position: relative;
  counter-increment: step;
  padding: 0 0 var(--space-6) var(--space-12);
  border-left: 2px solid var(--color-border);
  margin-left: var(--space-4);
}
.ca-steps > li:last-child { border-left-color: transparent; padding-bottom: 0; }
.ca-steps > li::before {
  content: counter(step);
  position: absolute;
  left: calc(-1 * var(--space-5));
  top: -4px;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-action);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  border-radius: 50%;
  font-size: var(--font-size-base);
}
.ca-steps__title {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  color: var(--color-heading);
  margin-bottom: var(--space-2);
}

/* ==========================================================================
   KNOWLEDGE CHECK (quiz)
   ========================================================================== */

.ca-quiz {
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-cta);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-8) 0;
  background: var(--color-white);
}
.ca-quiz__label {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-cta);
  margin-bottom: var(--space-2);
}
.ca-quiz__q { font-family: var(--font-heading); font-weight: 700; font-size: var(--font-size-lg); color: var(--color-heading); margin-bottom: var(--space-4); }
.ca-quiz__options { display: grid; gap: var(--space-2); }
.ca-quiz__option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-family: var(--font-body);
  color: var(--color-text);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.ca-quiz__option:hover { border-color: var(--color-action); }
.ca-quiz__option::before {
  content: "";
  flex-shrink: 0;
  width: 18px; height: 18px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
}
.ca-quiz__option.is-correct {
  border-color: var(--color-success);
  background: rgba(22, 163, 74, 0.08);
  color: var(--color-heading);
}
.ca-quiz__option.is-correct::before {
  border-color: var(--color-success);
  background: var(--color-success);
  box-shadow: inset 0 0 0 3px var(--color-white);
}
.ca-quiz__option.is-wrong {
  border-color: var(--color-error);
  background: rgba(220, 38, 38, 0.06);
}
.ca-quiz__option.is-wrong::before { border-color: var(--color-error); }
.ca-quiz__explain {
  display: none;
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: rgba(22, 163, 74, 0.06);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}
.ca-quiz.is-answered .ca-quiz__explain { display: block; }

/* ==========================================================================
   LESSON FOOTER NAV + COMPLETE BUTTON
   ========================================================================== */

.ca-lesson-complete {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
  padding: var(--space-8);
  background: var(--color-bg);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  margin: var(--space-10) 0 var(--space-8);
}
.ca-btn--ghost-success {
  background: transparent;
  color: var(--color-success);
  border-color: var(--color-success);
}
.ca-btn--ghost-success:hover { background: var(--color-success); color: var(--color-white); }
.ca-btn[data-done="true"] {
  background: var(--color-success);
  color: var(--color-white);
  border-color: var(--color-success);
}

.ca-lesson-nav-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-8);
  flex-wrap: wrap;
}
.ca-lesson-nav-footer a {
  flex: 1;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  background: var(--color-white);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.ca-lesson-nav-footer a:hover { box-shadow: var(--shadow-md); border-color: var(--color-action); }
.ca-lesson-nav-footer a.is-next { text-align: right; }
.ca-lesson-nav-footer__dir {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.ca-lesson-nav-footer__title {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-semibold);
  color: var(--color-heading);
}

@media (max-width: 640px) {
  .ca-lesson-nav-footer a { min-width: 100%; }
}

/* ==========================================================================
   PREREQ / "NOT A REPLACEMENT" small print, key-takeaways
   ========================================================================== */

.ca-takeaways {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  margin: var(--space-8) 0;
}
.ca-takeaways h3 { color: var(--color-white); margin-bottom: var(--space-4); font-size: var(--font-size-xl); }
.ca-takeaways ul { list-style: none; padding: 0; margin: 0; }
.ca-takeaways li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-loose);
}
.ca-takeaways li:last-child { margin-bottom: 0; }
.ca-takeaways li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-cta);
  font-weight: 700;
}

@media (prefers-reduced-motion: reduce) {
  .ca-module-card, .ca-lesson-nav-footer a { transition: none; }
}