/* ============================================================
   DESIGN TOKEN SYSTEM
   Color palette extracted / matched from reference page
   ============================================================ */
:root {
  /* Core palette */
  --bg:           #F4F7FB;   /* off-white with blue tint – page bg */
  --surface:      #FFFFFF;   /* card surfaces */
  --surface-alt:  #EBF0F8;   /* soft blue tint sections */

  --text-primary:   #1A2235;  /* near-black, high contrast */
  --text-secondary: #4A5568;  /* body copy */
  --text-muted:     #8A97AB;  /* captions, hints */

  --accent-blue:    #6C8EBF;  /* primary brand / neural blue */
  --accent-blue-lt: #D6E3F0;  /* light blue tint */
  --accent-green:   #8BB4A0;  /* secondary – recovery / positive */
  --accent-warm:    #B5A090;  /* tertiary – human / warm */

  --cta-bg:         #6C8EBF;
  --cta-bg-mid:     #3D6594;
  --cta-bg-final:   #1E3A5F;
  --cta-text:       #FFFFFF;

  --border:         #DDE5F0;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  /* Spacing */
  --section-py:   80px;
  --container-w:  780px;
  --radius:       12px;
  --radius-sm:    8px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

/* ============================================================
   LOADER
   ============================================================ */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
#loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.loader-ring {
  width: 40px;
  height: 40px;
  border: 3px solid var(--accent-blue-lt);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader-text {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   STICKY BAR
   ============================================================ */
.sticky-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--text-primary);
  padding: 10px 20px;
  transform: translateY(-100%);
  transition: transform 0.35s ease;
}
.sticky-bar.visible { transform: translateY(0); }
.sticky-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.sticky-label {
  font-size: 14px;
  color: #B8C8DC;
  flex: 1;
  min-width: 200px;
}
.sticky-label strong { color: #FFFFFF; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  text-align: center;
  text-decoration: none;
  line-height: 1.3;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

/* Sticky button */
.btn-sticky {
  background: var(--accent-blue);
  color: var(--cta-text);
  padding: 9px 20px;
  border-radius: 6px;
  font-size: 13px;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(108,142,191,0.35);
}
.btn-sticky:hover { background: var(--cta-bg-mid); box-shadow: 0 4px 14px rgba(108,142,191,0.45); }

/* Hero button – curiosity-driven, approachable */
.btn-hero {
  background: var(--accent-blue);
  color: var(--cta-text);
  padding: 18px 40px;
  border-radius: var(--radius);
  font-size: 17px;
  box-shadow: 0 4px 20px rgba(108,142,191,0.4);
  letter-spacing: 0.01em;
}
.btn-hero:hover {
  background: var(--cta-bg-mid);
  box-shadow: 0 8px 28px rgba(108,142,191,0.5);
}

/* Mid-page button – stronger, more intent */
.btn-mid {
  background: transparent;
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
  padding: 14px 32px;
  border-radius: var(--radius);
  font-size: 15px;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.btn-mid:hover {
  background: var(--accent-blue);
  color: #fff;
  box-shadow: 0 6px 20px rgba(108,142,191,0.4);
}
.btn-mid--strong {
  background: var(--cta-bg-mid);
  color: #fff;
  border-color: var(--cta-bg-mid);
  padding: 16px 36px;
  font-size: 16px;
  box-shadow: 0 4px 18px rgba(61,101,148,0.35);
}
.btn-mid--strong:hover {
  background: var(--cta-bg-final);
  border-color: var(--cta-bg-final);
  box-shadow: 0 8px 26px rgba(30,58,95,0.45);
}

/* Final CTA – highest urgency, full visual weight */
.btn-final {
  background: linear-gradient(135deg, #2B5495 0%, #1A2F5C 100%);
  color: var(--cta-text);
  padding: 20px 48px;
  border-radius: var(--radius);
  font-size: 18px;
  box-shadow: 0 6px 28px rgba(30,58,95,0.45);
  letter-spacing: 0.01em;
  display: inline-block;
}
.btn-final:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(30,58,95,0.55);
}

.mid-cta-wrap {
  margin-top: 40px;
  text-align: center;
}
.btn-subtext {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================================
   BADGES / CHIPS
   ============================================================ */
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-blue);
  background: var(--accent-blue-lt);
  padding: 5px 12px;
  border-radius: 20px;
}
.dot-sep {
  color: var(--text-muted);
  margin: 0 4px;
}

.chip {
  display: inline-block;
  font-size: 14px;
  padding: 7px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  color: var(--text-secondary);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #F0F4FA 0%, #E8EFF8 60%, #EBF2F0 100%);
  padding: 120px 0 100px;
  text-align: center;
}
.hero-bg-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.neural-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 60px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero-title em {
  color: var(--accent-blue);
  font-style: italic;
}
.hero-sub {
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.6;
}
.hero-sub strong { color: var(--text-primary); font-weight: 600; }
.hero-scroll-hint {
  margin-top: 28px;
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ============================================================
   INTRO
   ============================================================ */
.intro-section {
  background: var(--surface);
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
.intro-inner { text-align: center; }
.intro-lead {
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 26px);
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 20px;
  line-height: 1.5;
}
.intro-lead em { color: var(--accent-blue); }
.intro-body {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 28px;
}
.intro-body strong { color: var(--text-primary); font-weight: 600; }
.intro-cta-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-blue);
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline-section {
  padding: var(--section-py) 0;
  background: var(--bg);
}
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 80px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--border) 10%, var(--border) 90%, transparent);
}
.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  padding: 0 0 48px;
  position: relative;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-time {
  flex-shrink: 0;
  width: 80px;
  text-align: right;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-blue);
  padding-top: 20px;
  position: relative;
}
.timeline-time::after {
  content: '';
  position: absolute;
  right: -21px;
  top: 26px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-blue);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent-blue-lt);
}
.timeline-card {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  box-shadow: 0 2px 12px rgba(30,58,95,0.06);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.timeline-card:hover {
  box-shadow: 0 6px 24px rgba(30,58,95,0.1);
  transform: translateY(-2px);
}
.timeline-card--accent {
  border-color: var(--accent-blue-lt);
  background: linear-gradient(135deg, #fff 0%, #F0F6FF 100%);
}
.timeline-icon { margin-bottom: 12px; }
.timeline-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.timeline-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 10px;
}
.timeline-card p:last-child { margin-bottom: 0; }
.timeline-card p em { color: var(--text-primary); font-style: italic; }

/* ============================================================
   TRIED SECTION
   ============================================================ */
.tried-section {
  padding: var(--section-py) 0;
  background: var(--surface);
}
.tried-section .container { text-align: center; }
.tried-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 28px 0;
}
.callout-box {
  margin: 32px auto 0;
  max-width: 580px;
  background: var(--surface-alt);
  border-left: 3px solid var(--accent-blue);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  text-align: left;
}
.callout-box p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.65;
}
.callout-box strong { color: var(--text-primary); }

/* ============================================================
   MECHANISM SECTION
   ============================================================ */
.mechanism-section {
  padding: var(--section-py) 0;
  background: var(--bg);
}
.mechanism-section .container { text-align: center; }

/* Cycle diagram */
.cycle-diagram {
  position: relative;
  width: 300px;
  height: 200px;
  margin: 48px auto;
}
.cycle-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.cycle-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--surface);
  border: 2px solid var(--accent-blue-lt);
  border-radius: 50%;
  width: 90px;
  height: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: 0 0 24px rgba(108,142,191,0.15);
}
.cycle-label-top, .cycle-label-mid, .cycle-label-bot {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-blue);
  line-height: 1.4;
}
.cycle-node {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(30,58,95,0.06);
}
.cycle-node--tl { top: 10px; left: -10px; }
.cycle-node--tr { top: 10px; right: -10px; }
.cycle-node--bl { bottom: 10px; left: -10px; }
.cycle-node--br { bottom: 10px; right: -10px; }

/* Fixes grid */
.fixes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 40px 0 24px;
  text-align: left;
}
.fix-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 20px;
}
.fix-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.fix-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   MISSING PIECE / PULL QUOTE
   ============================================================ */
.missing-section {
  padding: var(--section-py) 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.72) 0%, rgba(235,240,248,0.82) 100%),
    radial-gradient(circle at 50% 0%, rgba(108,142,191,0.16), transparent 46%);
}
.missing-section .container { max-width: 940px; }

.missing-hero {
  max-width: 720px;
  margin: 0 auto 38px;
  text-align: center;
}

.missing-lead {
  max-width: 650px;
  margin: 0 auto;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.8vw, 25px);
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.55;
}

.missing-story {
  display: grid;
  gap: 28px;
}

.missing-story p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.78;
  margin-bottom: 16px;
}

.missing-story p:last-child { margin-bottom: 0; }

.missing-panel,
.closing-panel,
.mechanism-focus,
.doctor-quote {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 34px rgba(30,58,95,0.07);
}

.missing-panel {
  max-width: 760px;
  margin: 0 auto;
  padding: 30px 34px;
  background: rgba(255,255,255,0.88);
  text-align: left;
}

.missing-panel--wide {
  max-width: 820px;
  border-top: 4px solid var(--accent-blue-lt);
}

.missing-panel h3 {
  font-family: var(--font-display);
  font-size: 25px;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 16px;
}

.mechanism-focus {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 34px;
  align-items: center;
  padding: 34px;
  background: linear-gradient(135deg, #FFFFFF 0%, #F0F6FF 100%);
}

.mechanism-orbit {
  position: relative;
  width: 210px;
  aspect-ratio: 1;
  margin: 0 auto;
  border-radius: 50%;
  background:
    radial-gradient(circle, #FFFFFF 0 29%, transparent 30%),
    radial-gradient(circle, rgba(108,142,191,0.24) 0 36%, transparent 37%),
    conic-gradient(from 210deg, rgba(108,142,191,0.1), rgba(139,180,160,0.34), rgba(181,160,144,0.18), rgba(108,142,191,0.1));
  border: 1px solid rgba(108,142,191,0.24);
  box-shadow: inset 0 0 34px rgba(108,142,191,0.11);
}

.mechanism-orbit::before {
  content: 'Master Regulator';
  position: absolute;
  inset: 50%;
  width: 112px;
  height: 112px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  display: grid;
  place-items: center;
  padding: 18px;
  background: var(--surface);
  border: 2px solid var(--accent-blue-lt);
  color: var(--accent-blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.09em;
  line-height: 1.35;
  text-align: center;
  text-transform: uppercase;
}

.mechanism-orbit span {
  position: absolute;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 0 8px rgba(108,142,191,0.12);
}

.mechanism-orbit span:nth-child(1) { top: 24px; left: 96px; }
.mechanism-orbit span:nth-child(2) { right: 32px; bottom: 52px; background: var(--accent-green); }
.mechanism-orbit span:nth-child(3) { left: 36px; bottom: 58px; background: var(--accent-warm); }

.mechanism-copy { text-align: left; }

.missing-break {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: var(--accent-blue);
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-style: italic;
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
}

.missing-break::before,
.missing-break::after {
  content: '';
  flex: 1;
  max-width: 180px;
  height: 1px;
  background: var(--border);
}

.missing-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  align-items: start;
  max-width: 860px;
  margin: 0 auto;
  text-align: left;
}

.memory-card {
  padding: 26px 28px;
  background: var(--text-primary);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 14px 34px rgba(26,34,53,0.18);
}

.memory-card p {
  color: #DDE5F0;
  font-size: 15px;
}

.doctor-quote {
  max-width: 780px;
  margin: 0 auto;
  padding: 34px 40px;
  background: var(--surface);
  border-left: 5px solid var(--accent-blue);
  text-align: left;
}

.doctor-quote p {
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 27px);
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.55;
  margin-bottom: 18px;
}

.doctor-quote cite {
  display: block;
  font-size: 13px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent-blue);
}

.closing-panel {
  max-width: 820px;
  margin: 0 auto;
  padding: 32px 36px;
  background: linear-gradient(135deg, #EBF2F0 0%, #FFFFFF 100%);
  text-align: left;
}

.closing-panel p:last-child {
  font-family: var(--font-display);
  font-size: 23px;
  font-style: italic;
  color: var(--text-primary);
}

.pull-quote {
  margin: 40px auto;
  max-width: 560px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.8vw, 22px);
  font-style: italic;
  color: var(--accent-blue);
  line-height: 1.6;
  position: relative;
  padding: 28px 32px;
  background: var(--bg);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent-blue);
  text-align: left;
}

.gap-box {
  margin: 0 auto 40px;
  max-width: 520px;
  background: var(--surface-alt);
  border-radius: var(--radius);
  padding: 24px 28px;
  text-align: left;
}
.gap-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 10px;
}
.gap-box p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   SHARED SECTION TYPOGRAPHY
   ============================================================ */
.section-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.5vw, 40px);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.015em;
}
.section-title em {
  font-style: italic;
  color: var(--accent-blue);
}
.section-body {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 18px;
  line-height: 1.75;
}
.section-body:last-of-type { margin-bottom: 0; }
.section-body strong { color: var(--text-primary); font-weight: 600; }
.section-body em { color: var(--text-primary); font-style: italic; }
.section-body--bold {
  font-family: var(--font-display);
  font-size: 22px;
  font-style: italic;
  color: var(--text-primary);
  font-weight: 600;
}
.subsection-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 52px 0 20px;
}

/* ============================================================
   BENEFITS
   ============================================================ */
.benefits-section {
  padding: var(--section-py) 0;
  background: linear-gradient(160deg, #EBF2F0 0%, #EBF0F8 100%);
}
.benefits-section .container { text-align: center; }
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 44px;
  text-align: left;
}
.benefit-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px;
  box-shadow: 0 2px 12px rgba(30,58,95,0.05);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.benefit-card:hover {
  box-shadow: 0 6px 24px rgba(30,58,95,0.1);
  transform: translateY(-2px);
}
.benefit-icon { margin-bottom: 14px; }
.benefit-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.benefit-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   DOCTOR SECTION
   ============================================================ */
.doctor-section {
  padding: var(--section-py) 0;
  background: var(--surface);
}
.doctor-section .container { text-align: center; }
.doctor-card {
  display: flex;
  align-items: flex-start;
  gap: 36px;
  margin-top: 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 40px;
  text-align: left;
}
.doctor-avatar { flex-shrink: 0; }
.doctor-name {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.doctor-cred {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent-blue);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.doctor-bio {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 14px;
}
.doctor-bio:last-child { margin-bottom: 0; }
.doctor-bio em { font-style: italic; color: var(--text-primary); }

/* ============================================================
   FINAL CTA
   ============================================================ */
.final-cta-section {
  padding: 100px 0 80px;
  background: linear-gradient(160deg, #1A2235 0%, #0F1825 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta-section::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,142,191,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.final-cta-inner { position: relative; z-index: 2; }
.final-cta-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 16px;
}
.final-cta-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.final-cta-body {
  font-size: 17px;
  color: #8A97AB;
  max-width: 540px;
  margin: 0 auto 44px;
  line-height: 1.7;
}
.final-disclaimer {
  margin-top: 24px;
  font-size: 12px;
  color: #4A5568;
  letter-spacing: 0.02em;
}

/* ============================================================
   REVEAL ANIMATIONS (light, performant)
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   MOBILE-ONLY BREAK
   ============================================================ */
.mobile-only { display: none; }

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 768px) {
  :root { --section-py: 60px; }

  .mobile-only { display: block; }

  /* Timeline */
  .timeline::before { left: 0; }
  .timeline-item { flex-direction: column; gap: 10px; padding-bottom: 40px; }
  .timeline-time {
    width: auto;
    text-align: left;
    padding-top: 0;
    padding-left: 18px;
  }
  .timeline-time::after { left: -4px; right: auto; top: 3px; }
  .timeline-card { padding: 22px 20px; }

  /* Fixes grid */
  .fixes-grid { grid-template-columns: 1fr; gap: 14px; }

  /* Missing piece */
  .mechanism-focus,
  .missing-columns {
    grid-template-columns: 1fr;
  }
  .mechanism-focus {
    padding: 28px 24px;
  }
  .mechanism-orbit {
    width: 180px;
  }
  .missing-panel,
  .doctor-quote,
  .closing-panel {
    padding: 26px 24px;
  }
  .memory-card {
    padding: 24px;
  }

  /* Benefits grid */
  .benefits-grid { grid-template-columns: 1fr; }

  /* Doctor card */
  .doctor-card { flex-direction: column; padding: 28px 24px; gap: 20px; }

  /* Hero */
  .hero { padding: 100px 0 72px; }

  /* Cycle diagram */
  .cycle-diagram { width: 260px; height: 170px; }
  .cycle-center { width: 76px; height: 76px; }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 480px) {
  .hero { padding: 88px 0 60px; }
  .hero-title { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .btn-hero { padding: 15px 28px; font-size: 15px; }
  .btn-final { padding: 17px 28px; font-size: 16px; }
  .btn-mid { font-size: 14px; padding: 12px 22px; }
  .btn-mid--strong { font-size: 14px; padding: 14px 22px; }

  .section-title { font-size: 26px; }
  .pull-quote { font-size: 17px; padding: 22px 22px; }
  .missing-story { gap: 22px; }
  .missing-story p { font-size: 15px; }
  .missing-break {
    font-size: 21px;
    gap: 10px;
  }
  .missing-break::before,
  .missing-break::after {
    max-width: 52px;
  }
  .mechanism-focus,
  .missing-panel,
  .doctor-quote,
  .closing-panel {
    border-radius: var(--radius-sm);
  }
  .mechanism-orbit {
    width: 150px;
  }
  .mechanism-orbit::before {
    width: 88px;
    height: 88px;
    font-size: 9px;
  }
  .doctor-quote p,
  .closing-panel p:last-child {
    font-size: 19px;
  }

  .sticky-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .sticky-label { font-size: 12px; }
  .btn-sticky { font-size: 12px; padding: 8px 16px; }

  .doctor-avatar svg { width: 56px; height: 56px; }

  .tried-chips { gap: 8px; }
  .chip { font-size: 13px; padding: 6px 13px; }

  .cycle-diagram { display: none; }
}