/* ===========================
   AI FOR REAL LIFE — Design System
   Warm, calm palette for a mom-focused course
   Part of the Next Frontier Builders family
   =========================== */

:root {
  /* Color Palette — Warm, calm, grown-up */
  --bg-primary: #fdfaf5;
  --bg-secondary: #f7f1e6;
  --bg-tertiary: #f0e8d8;
  --surface: #ffffff;
  --surface2: #fbf6ec;
  --surface3: #f5efe3;

  /* Accents */
  --accent: #c47a5c;           /* warm terracotta */
  --accent-light: #d89477;
  --accent-bright: #b46648;
  --accent-dim: #e0a78e;
  --accent-gradient: linear-gradient(135deg, #c47a5c 0%, #d4a866 100%);

  /* Secondary warmth */
  --gold: #d4a866;
  --sage: #8a9d7f;
  --blush: #d9a5a0;
  --cream: #f5efe3;

  /* Text */
  --text: #2a2622;
  --text-muted: #5c554d;
  --text-dim: #9a9086;

  /* Borders */
  --border: rgba(196, 122, 92, 0.18);
  --border-bright: rgba(196, 122, 92, 0.35);
  --border-soft: #e8dfcf;

  /* Typography (matches Builder Lab for family coherence) */
  --font-display: 'Instrument Serif', serif;
  --font-body: 'Outfit', sans-serif;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 28px;

  /* Shadows — soft and warm */
  --shadow-sm: 0 1px 3px rgba(90, 60, 40, 0.08);
  --shadow-md: 0 6px 18px rgba(90, 60, 40, 0.10);
  --shadow-lg: 0 14px 36px rgba(90, 60, 40, 0.14);

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: 0.1px;
  -webkit-font-smoothing: antialiased;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.5px;
  color: var(--text);
  font-weight: 500;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  margin-bottom: var(--spacing-xl);
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: 1.35rem;
  margin-bottom: var(--spacing-md);
}

p {
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  color: var(--text-muted);
}

strong { color: var(--text); font-weight: 600; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--accent-bright); }

ul, ol { list-style: none; }
button { font-family: var(--font-body); cursor: pointer; border: none; background: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ========== NFB UMBRELLA BANNER ========== */
.nfb-banner {
  display: block;
  padding: 10px 24px;
  text-align: center;
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-bottom: 1px solid var(--border-soft);
  transition: var(--transition);
}
.nfb-banner strong {
  color: var(--text);
  font-weight: 600;
}
.nfb-banner:hover {
  background: #efe7d6;
  color: var(--text);
}

/* ========== NAVBAR ========== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(253, 250, 245, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: var(--text);
  font-weight: 500;
  letter-spacing: -0.3px;
}

.navbar-logo .logo-accent {
  color: var(--accent);
  font-style: italic;
}

.navbar-links {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}
.nav-link:hover { color: var(--accent); }

.navbar-cta {
  background: var(--accent);
  color: #fff;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}
.navbar-cta:hover {
  background: var(--accent-bright);
  color: #fff;
  transform: translateY(-1px);
}

/* ========== PROGRESS BAR ========== */
.lesson-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 101;
  height: 3px;
  background: transparent;
  width: 100%;
  pointer-events: none;
}
.lesson-progress-fill {
  height: 100%;
  width: 0;
  background: var(--accent-gradient);
  transition: width 0.4s ease;
}

/* ========== LESSON LAYOUT ========== */
.lesson-page {
  min-height: 100vh;
}

.lesson-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  max-width: 1240px;
  margin: 0 auto;
  gap: var(--spacing-2xl);
  padding: 0 var(--spacing-lg);
}

@media (max-width: 900px) {
  .lesson-container {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

/* Sidebar */
.lesson-sidebar {
  position: sticky;
  top: 80px;
  height: fit-content;
  padding: var(--spacing-xl) 0;
}

@media (max-width: 900px) {
  .lesson-sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: 280px;
    height: 100vh;
    background: var(--surface);
    padding: var(--spacing-2xl) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transition: left 0.3s ease;
    z-index: 200;
    overflow-y: auto;
  }
  .lesson-sidebar.open { left: 0; }
}

.sidebar-toggle {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 150;
  width: 52px;
  height: 52px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 5px;
}
.sidebar-toggle span {
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
}

@media (max-width: 900px) {
  .sidebar-toggle { display: flex; }
}

.sidebar-module-title {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: var(--spacing-md);
}

.sidebar-lessons { display: flex; flex-direction: column; gap: 4px; }

.sidebar-lesson {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition);
}
.sidebar-lesson:hover {
  background: var(--surface2);
  color: var(--text);
}
.sidebar-lesson.active {
  background: var(--surface2);
  color: var(--accent);
  font-weight: 600;
}

/* Main content */
.lesson-content {
  padding: var(--spacing-xl) 0 var(--spacing-3xl);
  max-width: 760px;
  width: 100%;
}

.lesson-header {
  margin-bottom: var(--spacing-2xl);
}
.lesson-breadcrumb {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}
.lesson-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-free {
  background: rgba(138, 157, 127, 0.15);
  color: var(--sage);
}
.badge-premium {
  background: rgba(212, 168, 102, 0.2);
  color: #a0732b;
}
.lesson-title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--spacing-md);
}
.lesson-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-soft);
}
.lesson-meta {
  font-size: 0.88rem;
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.lesson-meta::before {
  content: "•";
  color: var(--accent);
}
.lesson-meta:first-child::before { content: none; }

/* ========== STEPPER (click-through screens) ========== */
.lesson-step {
  display: none;
  animation: fadeIn 0.4s ease;
}
.lesson-step.step-active { display: block; }

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

.stepper-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: var(--spacing-2xl);
}

.stepper-dots {
  display: flex;
  gap: 10px;
}

.stepper-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-soft);
  transition: var(--transition);
}
.stepper-dot.active {
  background: var(--accent);
  transform: scale(1.3);
}
.stepper-dot.completed {
  background: var(--sage);
}

.stepper-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 500;
}

.stepper-bottom-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xl) 0 0;
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--border-soft);
}

.stepper-btn {
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.stepper-prev {
  color: var(--text-muted);
  background: var(--surface2);
}
.stepper-prev:hover {
  background: var(--bg-tertiary);
  color: var(--text);
}

.stepper-next {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.stepper-next:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.stepper-page-info {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 500;
}

/* ========== LESSON SECTIONS & CONTENT BLOCKS ========== */
.lesson-content p,
.lesson-content li {
  text-wrap: pretty;
}
.lesson-section {
  margin-bottom: var(--spacing-xl);
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  margin-bottom: var(--spacing-md);
  color: var(--text);
}

/* Info callout — warm highlighted box */
.info-callout {
  background: var(--surface2);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-sm);
}
.info-callout h3 {
  color: var(--accent-bright);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--spacing-sm);
}
.info-callout p { margin-bottom: var(--spacing-sm); color: var(--text); }
.info-callout p:last-child { margin-bottom: 0; }
.info-callout ul { margin-left: var(--spacing-lg); margin-top: var(--spacing-sm); }
.info-callout li {
  list-style: disc;
  margin-bottom: 6px;
  color: var(--text);
}

/* Rule card — for the three rules */
.rules-grid {
  display: grid;
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}
.rule-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--spacing-xs) var(--spacing-md);
  align-items: start;
}
.rule-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1rem;
  font-family: var(--font-body);
  grid-row: 1 / span 2;
}
.rule-card h3 {
  margin-bottom: 4px;
  color: var(--text);
  font-size: 1.2rem;
  grid-column: 2;
}
.rule-card p {
  color: var(--text-muted);
  margin-bottom: 0;
  font-size: 0.98rem;
  grid-column: 2;
}

/* Privacy chart — three columns */
.privacy-chart {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}
@media (max-width: 720px) {
  .privacy-chart { grid-template-columns: 1fr; }
}
.privacy-col {
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
}
.privacy-col.green  { background: rgba(138, 157, 127, 0.12); border-color: rgba(138, 157, 127, 0.35); }
.privacy-col.yellow { background: rgba(212, 168, 102, 0.12); border-color: rgba(212, 168, 102, 0.35); }
.privacy-col.red    { background: rgba(196, 92, 92, 0.12);  border-color: rgba(196, 92, 92, 0.35); }
.privacy-col h4 {
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.85rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}
.privacy-col.green h4  { color: #5d7654; }
.privacy-col.yellow h4 { color: #a0732b; }
.privacy-col.red h4    { color: #a64a4a; }
.privacy-col ul { margin: 0; }
.privacy-col li {
  font-size: 0.92rem;
  color: var(--text);
  padding: 4px 0;
}

/* Step-by-step numbered instructions */
.steps-list {
  counter-reset: step;
  margin: var(--spacing-lg) 0;
}
.steps-list li {
  counter-increment: step;
  position: relative;
  padding: 0 0 var(--spacing-lg) 52px;
  margin: 0;
  border-left: 2px solid var(--border-soft);
  padding-left: 52px;
  color: var(--text);
}
.steps-list li:last-child { border-left: 2px solid transparent; padding-bottom: 0; }
.steps-list li::before {
  content: counter(step);
  position: absolute;
  left: -18px;
  top: -4px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.steps-list > li > strong:has(~ p) { display: block; margin-bottom: 4px; font-size: 1.05rem; }
.steps-list li p { margin-bottom: var(--spacing-sm); text-wrap: pretty; }
.steps-list li p:last-child { margin-bottom: 0; }
.steps-list li p strong { display: inline; font-size: inherit; margin-bottom: 0; }

/* Screenshot placeholder */
.screenshot-placeholder {
  background: var(--surface2);
  border: 2px dashed var(--border-bright);
  border-radius: var(--radius-md);
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  margin: var(--spacing-md) 0;
  color: var(--text-dim);
  font-size: 0.9rem;
  font-style: italic;
}

/* Real lesson screenshot — replaces .screenshot-placeholder once the image exists */
.lesson-screenshot {
  display: block;
  max-width: 100%;
  height: auto;
  margin: var(--spacing-md) auto;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.lesson-screenshot-caption {
  display: block;
  text-align: center;
  margin-top: calc(var(--spacing-md) * -0.25);
  margin-bottom: var(--spacing-md);
  color: var(--text-dim);
  font-size: 0.85rem;
  font-style: italic;
}

/* Copy-paste prompt block */
.prompt-block {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-md) 0;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.prompt-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
}
.prompt-text {
  font-family: ui-monospace, 'SF Mono', 'Menlo', 'Consolas', monospace;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--surface2);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
  white-space: pre-wrap;
  word-wrap: break-word;
}
.copy-prompt-btn {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--accent);
  color: #fff;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
}
.copy-prompt-btn:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
}
.copy-prompt-btn.copied {
  background: var(--sage);
}

/* Terminal/code block (for install commands) */
.code-block {
  background: #2a2622;
  color: #f5efe3;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-family: ui-monospace, 'SF Mono', 'Menlo', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  overflow-x: auto;
  margin: var(--spacing-md) 0;
  position: relative;
}
.code-block .copy-prompt-btn {
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.12);
}
.code-block .copy-prompt-btn:hover {
  background: rgba(255, 255, 255, 0.22);
}

/* "Try this" actionable box (replaces quick-check fluff) */
.try-this {
  background: linear-gradient(135deg, rgba(196, 122, 92, 0.08) 0%, rgba(212, 168, 102, 0.08) 100%);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}
.try-this-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
}
.try-this h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text);
}
.try-this p:last-child { margin-bottom: 0; }

/* Key/takeaway summary card */
.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-sm);
}
.summary-card h3 {
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}
.summary-card ul li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text);
}
.summary-card ul li:last-child { border-bottom: none; }

/* "Coming next" */
.coming-next {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
  text-align: center;
  box-shadow: var(--shadow-md);
}
.coming-next h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}
.coming-next p { margin-bottom: var(--spacing-lg); }
.continue-btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.continue-btn:hover {
  background: var(--accent-bright);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  color: var(--text-dim);
  font-size: 0.88rem;
  border-top: 1px solid var(--border-soft);
  margin-top: var(--spacing-3xl);
}
.footer a { color: var(--text-muted); margin: 0 var(--spacing-sm); }
.footer a:hover { color: var(--accent); }

/* ========== DASHBOARD / LANDING ========== */
.hero {
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-2xl);
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.hero h1 {
  margin-bottom: var(--spacing-md);
}
.hero .tagline {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-xl);
}

.module-grid {
  display: grid;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-3xl);
  max-width: 1080px;
  margin: 0 auto;
}
.module-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.module-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--border-bright);
}
.module-number {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
}
.module-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin-bottom: var(--spacing-sm);
}
.module-description {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-bottom: var(--spacing-md);
}
.module-lessons {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-soft);
}
.module-lesson-link {
  padding: 8px 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.module-lesson-link:hover { color: var(--accent); }
.module-lesson-link .arrow { opacity: 0.5; font-size: 1rem; }
.module-lesson-link:hover .arrow { opacity: 1; transform: translateX(3px); transition: var(--transition); }

/* PHASE HEADERS — section dividers between groups of module-cards in curriculum.html */
.phase-header {
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--accent);
}
.phase-header:first-child {
  padding-top: 0;
}
.phase-header-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
}
.phase-header-name {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--text);
  margin: 0 0 var(--spacing-sm) 0;
}
.phase-header-desc {
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text-muted);
  margin: 0;
}

/* ─── PAYWALL: lock badges on locked module/bonus cards (curriculum.html) ─── */
.module-card.card-locked {
  position: relative;
  opacity: 0.78;
  transition: opacity 0.18s, box-shadow 0.18s, transform 0.18s;
}
.module-card.card-locked:hover {
  opacity: 1;
}
.module-card.card-locked .module-title,
.module-card.card-locked .module-description {
  /* slight desaturation cue without making text unreadable */
  filter: saturate(0.7);
}
.lock-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 10px;
  padding: 2px 8px 2px 6px;
  background: rgba(212, 168, 102, 0.18);
  color: var(--accent-bright);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  vertical-align: middle;
}
.lock-icon-svg {
  display: inline-block;
  vertical-align: middle;
}
.lock-badge-text {
  line-height: 1;
}