/* ═══════════════════════════════════════════════════════════════════
   AIIQM-WELL University — Academic Lesson Page Styles
   Color system: Navy #0B1C2D · Gold #C9A227 · Off-white #FDFAF5
   Typography: Georgia serif (headings) · Arial (labels) · System (body)
   Matches aiiqmwell.html university page aesthetic
═══════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&display=swap');

/* ── Tokens ─────────────────────────────────────────────────────── */
:root {
  --navy:        #0B1C2D;
  --navy-mid:    #122338;
  --navy-light:  #1a3250;
  --gold:        #C9A227;
  --gold-dim:    #B8860B;
  --gold-bg:     rgba(201,162,39,0.09);
  --gold-border: rgba(201,162,39,0.30);
  --white:       #ffffff;
  --off-white:   #FDFAF5;
  --cream:       #F5EDD6;
  --text:        #1a1a1a;
  --muted:       #555f6e;
  --border:      #dde2e8;
  --border-light:#eef0f3;
  --success:     #2a7a3b;
  --font-serif:  'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans:   Arial, Helvetica, sans-serif;
  --font-body:   system-ui, -apple-system, Arial, sans-serif;
  --font-mono:   'Courier New', Consolas, monospace;
  --max:         860px;
  --radius:      6px;
}

/* ── Reset ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--off-white);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--gold-dim); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--navy); }
img { max-width: 100%; display: block; }

/* ── Container ───────────────────────────────────────────────────── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ── Nav ─────────────────────────────────────────────────────────── */
.lesson-nav-top {
  position: sticky; top: 0; z-index: 100;
  background: var(--navy);
  border-bottom: 3px solid var(--gold);
  padding: 14px 0;
}
.lesson-nav-top .container {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.breadcrumb {
  font-family: var(--font-sans);
  font-size: 11px; color: rgba(255,255,255,0.55);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  letter-spacing: 0.04em;
}
.breadcrumb a { color: rgba(255,255,255,0.55); }
.breadcrumb a:hover { color: var(--gold); text-decoration: none; }
.breadcrumb .sep { opacity: 0.35; }
.breadcrumb .current { color: var(--gold); font-weight: 600; }
.nav-course-link {
  font-family: var(--font-sans);
  font-size: 11px; color: var(--gold);
  border: 1px solid var(--gold-border);
  padding: 5px 14px; border-radius: 3px;
  white-space: nowrap; letter-spacing: 0.04em;
  transition: background 0.15s;
}
.nav-course-link:hover { background: var(--gold-bg); text-decoration: none; }

/* ── Progress Bar ────────────────────────────────────────────────── */
.progress-bar-wrap { height: 3px; background: var(--border-light); }
.progress-bar-fill { height: 100%; background: linear-gradient(90deg, var(--gold) 0%, var(--gold-dim) 100%); }

/* ── Hero ────────────────────────────────────────────────────────── */
.lesson-hero {
  background: var(--navy);
  color: var(--white);
  padding: 64px 0 52px;
  position: relative;
  overflow: hidden;
}
.lesson-hero::after {
  content: '';
  position: absolute; top: -80px; right: -80px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(201,162,39,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.module-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 700; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold);
  background: rgba(201,162,39,0.08);
  border: 1px solid var(--gold-border);
  padding: 5px 14px; margin-bottom: 22px;
}
.lesson-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 700; line-height: 1.15;
  color: var(--white); margin-bottom: 18px;
}
.lesson-title em { color: var(--gold); font-style: italic; }
.lesson-meta {
  display: flex; flex-wrap: wrap; gap: 20px;
  margin-bottom: 28px;
}
.meta-pill {
  display: flex; align-items: center; gap: 7px;
  font-family: var(--font-sans);
  font-size: 12px; color: rgba(200,214,229,0.85); letter-spacing: 0.02em;
}
.meta-pill .icon { font-size: 14px; }
.lesson-outcome {
  background: rgba(201,162,39,0.08);
  border-left: 3px solid var(--gold);
  padding: 16px 20px;
  font-size: 14px; color: rgba(200,214,229,0.9); line-height: 1.7;
  max-width: 680px;
}
.lesson-outcome strong { color: var(--white); }

/* ── Audio Section ───────────────────────────────────────────────── */
.audio-section {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 32px 0;
}
.audio-card {
  background: var(--cream);
  border: 1px solid var(--gold-border);
  padding: 22px 28px;
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
}
.audio-icon { font-size: 32px; flex-shrink: 0; }
.audio-info { flex: 1; min-width: 200px; }
.audio-label {
  font-family: var(--font-sans);
  font-size: 10px; color: var(--gold-dim); letter-spacing: 0.2em;
  text-transform: uppercase; font-weight: 700; margin-bottom: 5px;
}
.audio-title {
  font-family: var(--font-serif);
  font-size: 17px; color: var(--navy); margin-bottom: 3px;
}
.audio-desc { font-family: var(--font-sans); font-size: 12px; color: var(--muted); }
.audio-player-wrap { flex: 1; min-width: 240px; }
.audio-player-wrap audio { width: 100%; }
.audio-placeholder { font-size: 12px; color: var(--muted); font-style: italic; }

/* ── Section Base ────────────────────────────────────────────────── */
.lesson-section { padding: 60px 0; border-bottom: 1px solid var(--border); background: var(--white); }
.lesson-section:nth-child(even) { background: var(--off-white); }
.section-eyebrow {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 700; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--gold-dim); margin-bottom: 10px;
}
.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 700; color: var(--navy);
  margin-bottom: 22px; line-height: 1.2;
}
.section-body { font-size: 15.5px; color: var(--text); line-height: 1.8; }
.section-body p { margin-bottom: 16px; }
.section-body p:last-child { margin-bottom: 0; }
.section-body em { font-style: italic; color: var(--navy); }
.section-body strong { color: var(--navy); font-weight: 600; }

/* ── AIMY Callout ────────────────────────────────────────────────── */
.aimy-callout {
  background: var(--cream);
  border-left: 4px solid var(--gold);
  padding: 26px 30px;
  margin: 28px 0;
  position: relative;
}
.aimy-callout::before {
  content: 'AIMY';
  position: absolute; top: -10px; left: 20px;
  font-family: var(--font-sans);
  font-size: 9px; font-weight: 700; letter-spacing: 0.2em;
  color: var(--gold-dim); background: var(--off-white);
  padding: 2px 10px; border: 1px solid var(--gold-border);
}
.aimy-callout p { color: var(--text); font-size: 15.5px; line-height: 1.8; margin-bottom: 14px; }
.aimy-callout p:last-child { margin-bottom: 0; }
.aimy-callout em { color: var(--navy); font-style: italic; }
.aimy-callout strong { color: var(--navy); font-weight: 600; }

/* ── Step Blocks ─────────────────────────────────────────────────── */
.step-block { margin: 28px 0; border: 1px solid var(--border); background: var(--white); }
.step-header {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 22px;
  background: rgba(201,162,39,0.04);
  border-bottom: 1px solid var(--border);
}
.step-num {
  width: 34px; height: 34px;
  background: var(--navy);
  color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-sans);
  font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
  flex-shrink: 0;
}
.step-title { font-family: var(--font-serif); font-size: 17px; font-weight: 700; color: var(--navy); }
.step-body { padding: 20px 22px 20px 70px; }
.step-body p { color: var(--text); font-size: 15px; line-height: 1.8; margin-bottom: 12px; }
.step-body p:last-child { margin-bottom: 0; }
.step-body ol, .step-body ul { color: var(--text); font-size: 15px; padding-left: 22px; line-height: 1.8; }
.step-body li { margin-bottom: 10px; }
.step-body strong { color: var(--navy); }
.step-body em { font-style: italic; color: var(--navy); }

/* ── PTR Box (Prove The Result) ──────────────────────────────────── */
.ptr-box {
  background: var(--navy);
  color: var(--white);
  border-left: 4px solid var(--gold);
  padding: 22px 26px;
  margin: 28px 0;
}
.ptr-label {
  font-family: var(--font-sans);
  font-size: 9px; font-weight: 700; letter-spacing: 0.24em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 10px;
}
.ptr-box p { font-size: 14.5px; color: rgba(255,255,255,0.88); line-height: 1.75; margin-bottom: 10px; }
.ptr-box p:last-child { margin-bottom: 0; }
.ptr-box ol { font-size: 14.5px; color: rgba(255,255,255,0.88); padding-left: 22px; line-height: 1.8; }
.ptr-box li { margin-bottom: 8px; }
.ptr-box strong { color: var(--gold); }
.ptr-box code { font-family: var(--font-mono); font-size: 13px; color: var(--gold); background: rgba(201,162,39,0.12); padding: 2px 7px; }

/* ── Code blocks ─────────────────────────────────────────────────── */
pre {
  background: var(--navy);
  border: 1px solid var(--gold-border);
  padding: 18px 22px; overflow-x: auto;
  font-family: var(--font-mono); font-size: 13.5px;
  color: #e8d695; line-height: 1.6; margin: 14px 0;
}
code {
  font-family: var(--font-mono); font-size: 13px;
  color: var(--navy); background: rgba(11,28,45,0.07);
  padding: 2px 7px;
}
pre code { background: none; padding: 0; color: inherit; font-size: inherit; }

/* ── Checkpoint / Verify Block ───────────────────────────────────── */
.checkpoint-block {
  background: rgba(42,122,59,0.06);
  border: 1px solid rgba(42,122,59,0.25);
  border-left: 4px solid var(--success);
  padding: 24px 28px; margin: 28px 0;
}
.checkpoint-block .check-label {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 700; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--success); margin-bottom: 12px;
}
.checkpoint-block p { color: var(--text); font-size: 15px; line-height: 1.8; margin-bottom: 10px; }
.checkpoint-block ol { color: var(--text); font-size: 15px; padding-left: 22px; line-height: 1.8; }
.checkpoint-block li { margin-bottom: 10px; }
.checkpoint-block strong { color: var(--navy); }

/* ── Mistake Block ───────────────────────────────────────────────── */
.mistake-block { margin: 20px 0; }
.mistake-title {
  font-family: var(--font-sans);
  font-size: 14px; font-weight: 700; color: #9b3a2a; margin-bottom: 8px;
}
.mistake-body { font-size: 14.5px; color: var(--text); line-height: 1.75; }
.mistake-body strong { color: var(--navy); }
.mistake-divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ── Warning Block ───────────────────────────────────────────────── */
.warn-block {
  background: rgba(155,58,42,0.06);
  border-left: 3px solid #c0392b;
  padding: 14px 18px; margin: 16px 0;
  font-size: 14px; color: var(--text); line-height: 1.7;
}
.warn-block strong { color: #9b3a2a; }

/* ── Aim Commitment Block ────────────────────────────────────────── */
.aim-commitment {
  background: var(--navy);
  color: var(--white);
  padding: 36px 40px;
  margin: 40px 0;
  border-top: 4px solid var(--gold);
}
.aim-commitment-label {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 700; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 16px;
}
.aim-commitment h3 {
  font-family: var(--font-serif);
  font-size: 22px; color: var(--white); margin-bottom: 16px;
}
.aim-commitment p {
  font-size: 15px; color: rgba(200,214,229,0.88); line-height: 1.8;
  margin-bottom: 12px;
}
.aim-commitment p:last-child { margin-bottom: 0; }
.aim-commitment ol {
  font-size: 15px; color: rgba(200,214,229,0.88);
  padding-left: 22px; line-height: 1.8;
}
.aim-commitment li { margin-bottom: 10px; }
.aim-commitment strong { color: var(--gold); }

/* ── Next Steps ──────────────────────────────────────────────────── */
.next-steps { padding: 56px 0 72px; background: var(--off-white); }
.next-steps-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.next-step-card {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 22px 24px;
}
.next-step-card .nsc-label {
  font-family: var(--font-sans);
  font-size: 10px; color: var(--gold-dim); font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 8px;
}
.next-step-card .nsc-text { font-size: 14px; color: var(--muted); line-height: 1.7; }
.next-step-card .nsc-text a { color: var(--gold-dim); }
.next-step-card.primary { border-color: var(--gold-border); background: var(--cream); }
.next-step-card.primary .nsc-label { color: var(--gold-dim); }

/* ── Module Nav Footer ───────────────────────────────────────────── */
.module-nav-footer {
  padding: 28px 0;
  border-top: 3px solid var(--gold);
  background: var(--navy);
}
.module-nav-footer .container {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.mod-nav-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 22px;
  font-family: var(--font-sans);
  font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6);
  transition: all 0.2s; text-decoration: none;
}
.mod-nav-btn:hover { border-color: var(--gold); color: var(--gold); text-decoration: none; }
.mod-nav-btn.primary { background: var(--gold); color: var(--navy); border-color: var(--gold); }
.mod-nav-btn.primary:hover { background: var(--gold-dim); border-color: var(--gold-dim); }
.mod-nav-center {
  font-family: var(--font-sans);
  font-size: 11px; color: rgba(255,255,255,0.35); text-align: center; letter-spacing: 0.06em;
}

/* ── Decision / Comparison Table ─────────────────────────────────── */
.decision-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.decision-table th {
  text-align: left; padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--white); background: var(--navy);
  border-bottom: 2px solid var(--gold);
}
.decision-table td {
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  color: var(--text); line-height: 1.65; vertical-align: top;
}
.decision-table tr:nth-child(even) td { background: var(--off-white); }
.decision-table td:first-child { font-weight: 600; color: var(--navy); }
.decision-table td code { font-family: var(--font-mono); font-size: 12px; color: var(--navy); background: rgba(11,28,45,0.07); padding: 1px 5px; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .lesson-meta { gap: 12px; }
  .next-steps-grid { grid-template-columns: 1fr; }
  .audio-card { flex-direction: column; }
  .step-body { padding-left: 22px; }
  .module-nav-footer .container { flex-direction: column; }
  .aim-commitment { padding: 28px 24px; }
}