/* ==========================================================================
   BO2K — Mindset Dedicated Reading Experience Styles
   Visual language inspired by the official cover:
   Soft neutral paper, deep charcoal/black typography, muted cool slate-blue accents.
   ========================================================================== */

:root {
  --mindset-bg: #F6F8FA;
  --mindset-surface: #EEF2F6;
  --mindset-surface-card: #FFFFFF;
  --mindset-text-primary: #12151A;
  --mindset-text-secondary: #2E343E;
  --mindset-text-muted: #67707E;
  
  /* Cool Slate Blue Accents inspired by the cover */
  --mindset-blue: #2B5270;
  --mindset-blue-dark: #1A364D;
  --mindset-blue-light: #E6EEF5;
  --mindset-blue-border: rgba(43, 82, 112, 0.22);
  
  --mindset-border: #DDE3EA;
  --mindset-shadow: 0 4px 20px rgba(18, 21, 26, 0.05), 0 1px 3px rgba(18, 21, 26, 0.03);
  --mindset-shadow-raised: 0 14px 40px rgba(18, 21, 26, 0.09), 0 2px 6px rgba(18, 21, 26, 0.04);
}

/* Page Container */
.mindset-reading-page {
  background-color: var(--mindset-bg);
  color: var(--mindset-text-primary);
  min-height: 100vh;
  padding-bottom: 6rem;
  position: relative;
}

/* Sticky Minimal Progress Indicator */
.mindset-progress-bar-wrap {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--mindset-border);
  z-index: 95;
}

.mindset-progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--mindset-blue), var(--mindset-blue-dark));
  width: 0%;
  transition: width 120ms ease-out;
}

/* ==========================================================================
   BOOK HERO (MINDSET)
   ========================================================================== */
.mindset-hero-wrapper {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2rem;
}

@media (min-width: 840px) {
  .mindset-hero-wrapper {
    display: grid;
    grid-template-columns: 320px 1fr;
    align-items: center;
    text-align: left;
    gap: 4.5rem;
    padding: 4rem 2.5rem 5rem;
  }
}

.mindset-hero-cover-col {
  width: 100%;
  display: flex;
  justify-content: center;
}

.mindset-hero-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 840px) {
  .mindset-hero-details {
    align-items: flex-start;
  }
}

.mindset-hero-meta {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  color: var(--mindset-blue);
}

.mindset-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--mindset-text-primary);
}

.mindset-hero-author {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mindset-text-secondary);
}

.mindset-hero-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--mindset-blue);
  margin: 0.25rem 0;
}

.mindset-hero-desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--mindset-text-secondary);
  max-width: 520px;
}

.mindset-hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

@media (min-width: 840px) {
  .mindset-hero-actions {
    justify-content: flex-start;
  }
}

/* ==========================================================================
   READING CONTAINER (MOBILE PRIORITY: 390 × 844)
   ========================================================================== */
.mindset-reading-container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

@media (min-width: 640px) {
  .mindset-reading-container {
    padding: 0 2rem;
  }
}

/* Section Header Structure */
.mindset-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
}

.mindset-section-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--mindset-blue);
}

.mindset-section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--mindset-text-primary);
  letter-spacing: -0.015em;
}

.mindset-body-text {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--mindset-text-secondary);
}

/* ==========================================================================
   CONTENT MODULE 1: THE WHOLE BOOK IN ONE SENTENCE
   ========================================================================== */
.mindset-sentence-box {
  background-color: var(--mindset-surface);
  border: 1px solid var(--mindset-border);
  border-left: 4px solid var(--mindset-blue);
  border-radius: var(--radius-sm);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  box-shadow: var(--mindset-shadow);
}

.mindset-sentence-label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--mindset-blue);
}

.mindset-sentence-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2.8vw, 1.45rem);
  line-height: 1.55;
  font-weight: 500;
  color: var(--mindset-text-primary);
}

/* ==========================================================================
   CONTENT MODULE 2: FIXED VS GROWTH MINDSET COMPARISON
   ========================================================================== */
.mindset-compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .mindset-compare-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.mindset-compare-card {
  background-color: var(--mindset-surface);
  border: 1px solid var(--mindset-border);
  border-radius: var(--radius-sm);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mindset-compare-card.fixed {
  border-top: 3px solid var(--mindset-text-muted);
}

.mindset-compare-card.growth {
  border-top: 3px solid var(--mindset-blue);
  background-color: var(--mindset-blue-light);
}

.mindset-compare-tag {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
}

.mindset-compare-card.fixed .mindset-compare-tag {
  color: var(--mindset-text-muted);
}

.mindset-compare-card.growth .mindset-compare-tag {
  color: var(--mindset-blue);
}

.mindset-compare-head {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--mindset-text-primary);
}

.mindset-points-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  list-style: none;
}

.mindset-points-list li {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--mindset-text-secondary);
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.mindset-points-list li::before {
  content: '•';
  color: var(--mindset-blue);
  font-weight: bold;
}

.mindset-compare-card.fixed .mindset-points-list li::before {
  color: var(--mindset-text-muted);
}

.mindset-goal-pill {
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--mindset-border);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ==========================================================================
   CONTENT MODULE 4: THE PLOT TWIST
   ========================================================================== */
.mindset-plot-twist-box {
  background-color: var(--mindset-text-primary);
  color: #FFFFFF;
  padding: 2.5rem 1.75rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: var(--mindset-shadow-raised);
}

.mindset-plot-twist-label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 700;
  color: #92B5D8;
}

.mindset-plot-twist-main {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3.8vw, 1.95rem);
  line-height: 1.35;
  color: #FFFFFF;
}

.mindset-plot-twist-shift {
  background-color: rgba(255, 255, 255, 0.1);
  border-left: 3px solid #92B5D8;
  padding: 1rem 1.25rem;
  font-size: 1rem;
  line-height: 1.6;
  color: #E6EEF5;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ==========================================================================
   CONTENT MODULE 11: THE POWER OF YET
   ========================================================================== */
.mindset-yet-card {
  background: linear-gradient(135deg, var(--mindset-blue-light) 0%, #FFFFFF 100%);
  border: 1px solid var(--mindset-blue-border);
  border-radius: var(--radius-sm);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mindset-yet-badge {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--mindset-blue);
  line-height: 1;
}

/* ==========================================================================
   CONTENT MODULE 15: THE FIXED MINDSET VOICE
   ========================================================================== */
.mindset-dialogue-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mindset-dialogue-row {
  background-color: var(--mindset-surface);
  border: 1px solid var(--mindset-border);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 600px) {
  .mindset-dialogue-row {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}

.mindset-voice-fixed {
  font-style: italic;
  font-family: var(--font-serif);
  color: var(--mindset-text-muted);
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mindset-voice-growth {
  font-family: var(--font-sans);
  color: var(--mindset-text-primary);
  font-size: 0.9375rem;
  font-weight: 500;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-top: 1px dashed var(--mindset-border);
  padding-top: 0.5rem;
}

@media (min-width: 600px) {
  .mindset-voice-growth {
    border-top: none;
    border-left: 1px solid var(--mindset-border);
    padding-top: 0;
    padding-left: 1.5rem;
  }
}

/* ==========================================================================
   CONTENT MODULE 17: HOW TO DEVELOP (7 STEPS)
   ========================================================================== */
.mindset-steps-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.mindset-step-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--mindset-surface);
  border: 1px solid var(--mindset-border);
  border-radius: var(--radius-sm);
}

.mindset-step-number {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--mindset-blue);
  background-color: var(--mindset-blue-light);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.mindset-step-body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mindset-step-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--mindset-text-primary);
}

.mindset-step-desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--mindset-text-secondary);
}

/* ==========================================================================
   CONTENT MODULE: THE DEEPER MESSAGE SHIFT
   ========================================================================== */
.mindset-shift-card {
  background-color: var(--mindset-blue-light);
  border: 1px solid var(--mindset-blue-border);
  border-radius: var(--radius-sm);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.mindset-shift-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.mindset-shift-box {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.mindset-shift-box.prove {
  background-color: var(--mindset-surface);
  color: var(--mindset-text-muted);
  border: 1px solid var(--mindset-border);
  text-decoration: line-through;
}

.mindset-shift-box.improve {
  background-color: var(--mindset-blue);
  color: #FFFFFF;
}

/* ==========================================================================
   FINAL SECTION & EPILOGUE
   ========================================================================== */
.mindset-final-box {
  text-align: center;
  padding: 4rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  border-top: 1px solid var(--mindset-border);
  margin-top: 2rem;
}

.mindset-final-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3.8vw, 2rem);
  line-height: 1.45;
  color: var(--mindset-text-primary);
  max-width: 600px;
}

.mindset-final-sub {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--mindset-blue);
  max-width: 500px;
  font-family: var(--font-serif);
  font-style: italic;
}

.mindset-final-author {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mindset-text-muted);
  font-weight: 600;
}