/* ===================================
   ORION DIALECTIC - STYLESHEET (REVISED)
   Professional, philosophical design
   - Dedupe + polish
   - Fixed mobile hamburger menu
   =================================== */

/* =========================
   CSS Variables
   ========================= */
:root {
  /* Palette */
  --color-navy: #0F172A;
  --color-gold: #B8860B;
  --color-gold-light: #D4AF37;
  --color-teal: #2F6D7A;
  --color-teal-light: #46829A;

  --color-cream: #FBFAF7;
  --color-surface: #FFFFFF;
  --color-card-bg: #FDFBF7;

  --color-grey-light: #E8E3DC;
  --color-grey-medium: #9B9B9B;

  --color-text: #1C1C1C;
  --color-text-light: #525252;

  /* Missing in original but used across pages */
  --color-sand-light: #F6F1E7;

  /* Typography */
  --font-serif: 'Crimson Text', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Layout */
  --container-width: 1200px;
  --container-narrow: 800px;

  /* Motion + UI */
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);

  --focus-ring: 0 0 0 3px rgba(184, 134, 11, 0.25);
}

/* =========================
   Reset & Base
   ========================= */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-cream);
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

/* =========================
   Typography
   ========================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-navy);
}

h1 { font-size: 3.5rem; font-weight: 700; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }

p { margin-bottom: 1rem; }

a {
  color: var(--color-navy);
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover { color: var(--color-gold); }

/* =========================
   Layout Helpers
   ========================= */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container.narrow { max-width: var(--container-narrow); }

/* =========================
   Buttons
   ========================= */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.btn-primary {
  background-color: var(--color-navy);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-gold);
  color: var(--color-navy);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-navy);
  border: 2px solid var(--color-navy);
}

.btn-secondary:hover {
  background-color: var(--color-navy);
  color: white;
}

/* =========================
   Navigation
   ========================= */
.navbar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-grey-light);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative; /* important for absolute-positioned mobile menu */
}

.nav-brand a {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-navy);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-brand .logo {
  height: 65px;
  width: auto;
  transition: opacity 0.25s ease;
}

.nav-brand .brand-text {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-navy);
  transition: color 0.25s ease;
}

.nav-brand a:hover .logo { opacity: 0.85; }
.nav-brand a:hover .brand-text { color: var(--color-gold); }

/* Desktop menu */
.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-menu a {
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.nav-menu a:hover {
  background-color: var(--color-cream);
  color: var(--color-gold);
}

.nav-menu a.active {
  color: var(--color-gold);
  font-weight: 600;
  position: relative;
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-gold);
}

/* Hamburger (hidden on desktop) */
.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  padding: 10px;
  border-radius: var(--radius-sm);
  z-index: 1001; /* above dropdown */
  user-select: none;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--color-navy);
  transition: transform 0.25s ease, opacity 0.25s ease;
  border-radius: 2px;
}

/* X state */
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* =========================
   Hero
   ========================= */
.hero {
  padding: var(--spacing-xl) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--color-cream) 0%, #FFFFFF 100%);
}

.hero-content { max-width: 900px; margin: 0 auto; }
.hero-title { margin-bottom: var(--spacing-sm); color: var(--color-navy); }

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  font-weight: 300;
}

/* Small hero variant (used on Exercises/Articles) */
.hero-small {
  padding: 4rem 0 3rem;
  min-height: auto;
}

.hero-small .hero-title {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-small .hero-subtitle {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto;
}

/* =========================
   Dual Lens Visual
   ========================= */
.dual-lens {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: var(--spacing-lg) 0;
  gap: 2rem;
  position: relative;
}

.lens {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border: 3px solid;
  background-color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-sm);
}

.lens-left { border-color: var(--color-gold); }
.lens-right { border-color: var(--color-teal); }

.lens-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-xs);
}

.lens-thinker {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
}

.lens-overlap {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-teal) 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 10;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.lens-overlap-content {
  color: white;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
}

/* =========================
   Hero Questions
   ========================= */
.hero-questions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) auto;
  max-width: 800px;
}

.question {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-gold);
  box-shadow: var(--shadow-sm);
}

.question:last-child { border-left-color: var(--color-teal); }

.question-text {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
  margin-bottom: var(--spacing-xs);
}

.question-source {
  font-size: 0.9rem;
  color: var(--color-text-light);
  text-align: right;
}

.hero-cta-text {
  margin: var(--spacing-md) 0;
  font-size: 1.1rem;
  color: var(--color-text);
}

/* =========================
   Sections (shared)
   ========================= */
.section { padding: var(--spacing-xl) 0; }

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.section-intro {
  text-align: center;
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  padding-top: 1rem;
  padding-bottom: 1rem;
}

/* =========================
   Problem Section
   ========================= */
.section-problem { background-color: var(--color-surface); }

.problem-content { text-align: center; }

.large-text {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.false-choices {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
  flex-wrap: wrap;
}

.choice {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-cream);
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-grey-light);
}

.choice-divider {
  font-weight: 700;
  color: var(--color-gold);
  font-size: 1.5rem;
}

/* =========================
   Thinkers Section
   ========================= */
.section-thinkers {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--color-cream) 100%);
}

.thinkers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.thinker {
  text-align: center;
  padding: var(--spacing-md);
}

.thinker-icon { margin-bottom: var(--spacing-sm); }
.thinker-title { margin-bottom: var(--spacing-xs); }

.thinker-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

.thinker-points {
  list-style: none;
  text-align: left;
  max-width: 400px;
  margin: 0 auto;
}

.thinker-points li {
  padding: var(--spacing-xs) 0;
  padding-left: 1.5rem;
  position: relative;
}

.thinker-points li::before {
  content: "→";
  position: absolute;
  left: 0;
  font-weight: 600;
}

.thinker-nietzsche .thinker-points li::before { color: var(--color-gold); }
.thinker-machiavelli .thinker-points li::before { color: var(--color-teal); }

.thinkers-synthesis {
  text-align: center;
  font-size: 1.2rem;
  font-style: italic;
  margin-top: var(--spacing-lg);
  color: var(--color-text);
}

/* =========================
   Foundations Section
   ========================= */
.section-foundations { background-color: var(--color-surface); }

.foundations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.foundation-card {
  background-color: var(--color-cream);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-grey-light);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  display: block;
}

.foundation-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.10);
  border-color: var(--color-gold-light);
}

.foundation-number {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--color-gold);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.foundation-title {
  margin-bottom: var(--spacing-xs);
  font-size: 1.3rem;
}

.foundation-desc {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* =========================
   Start Section
   ========================= */
.section-start {
  background: linear-gradient(135deg, var(--color-cream) 0%, #FFFFFF 100%);
}

.start-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.start-card {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 2px solid var(--color-grey-light);
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.start-card:hover {
  border-color: var(--color-gold);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.10);
  transform: translateY(-2px);
}

.start-title { margin-bottom: var(--spacing-sm); }
.start-desc { color: var(--color-text-light); margin-bottom: var(--spacing-md); }

/* =========================
   Footer
   ========================= */
.footer {
  background-color: var(--color-navy);
  color: white;
  padding: var(--spacing-lg) 0 var(--spacing-md) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.footer-brand h3 {
  font-family: var(--font-serif);
  color: var(--color-gold);
  margin-bottom: var(--spacing-xs);
}

.footer-brand .footer-logo {
  height: 60px;
  width: auto;
  margin-bottom: var(--spacing-sm);
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-brand p { color: var(--color-grey-light); }

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.footer-column h4 {
  color: var(--color-gold);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-column a {
  display: block;
  color: var(--color-grey-light);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-xs);
  transition: color 0.25s ease;
}

.footer-column a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
}

.footer-bottom p {
  color: var(--color-grey-light);
  font-size: 0.9rem;
}

/* ===================================
   FOUNDATION PAGES
   =================================== */
.foundation-hero {
  background: linear-gradient(135deg, var(--color-cream) 0%, #FFFFFF 100%);
  padding: var(--spacing-lg) 0 var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-grey-light);
}

.foundation-meta {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.foundation-meta .foundation-number {
  color: var(--color-gold);
  font-weight: 600;
}

.foundation-hero-title { margin-bottom: var(--spacing-sm); }

.foundation-hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  font-weight: 300;
}

.foundation-intro { background-color: var(--color-surface); }

.intro-text {
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.section-tools { background-color: var(--color-cream); }

.tool-card {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-gold);
  box-shadow: var(--shadow-sm);
}

.tool-title {
  color: var(--color-navy);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.tool-content p { margin-bottom: var(--spacing-sm); }

.tool-content ul {
  margin-left: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.tool-content ul li {
  margin-bottom: var(--spacing-xs);
  line-height: 1.6;
}

.tool-content strong { color: var(--color-navy); }

/* Philosopher Sections */
.section-nietzsche {
  background-color: #FBF9F4;
  border-top: 4px solid var(--color-gold);
}

.section-machiavelli {
  background-color: #F4F8F8;
  border-top: 4px solid var(--color-teal);
}

.philosopher-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.philosopher-icon { flex-shrink: 0; }

.philosopher-title { margin-bottom: 0.25rem; }

.philosopher-subtitle {
  font-size: 1rem;
  color: var(--color-text-light);
  font-style: italic;
}

.philosopher-content p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.8;
}

.philosophy-quote {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-style: italic;
  color: var(--color-navy);
  border-left: 4px solid var(--color-gold);
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
  background-color: rgba(184, 134, 11, 0.05);
}

.section-machiavelli .philosophy-quote {
  border-left-color: var(--color-teal);
  background-color: rgba(47, 109, 122, 0.05);
}

.philosophy-quote cite {
  display: block;
  font-size: 0.9rem;
  margin-top: var(--spacing-xs);
  color: var(--color-text-light);
  font-style: normal;
}

.subsection-title {
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  color: var(--color-navy);
  font-size: 1.3rem;
}

.caution-box,
.warning-box {
  background-color: var(--color-surface);
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-sm) 0;
  border-radius: 6px;
  border-left: 4px solid var(--color-gold);
}

.section-machiavelli .warning-box { border-left-color: var(--color-teal); }

.caution-box strong,
.warning-box strong { color: var(--color-navy); }

.machiavelli-list {
  margin-left: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.machiavelli-list li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

.machiavelli-list strong { color: var(--color-navy); }

/* Balance Section */
.section-balance { background-color: var(--color-surface); }

.balance-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.balance-card {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  background-color: var(--color-cream);
}

.balance-harden { border-left: 4px solid var(--color-gold); }
.balance-soften { border-left: 4px solid var(--color-teal); }

.balance-title { margin-bottom: var(--spacing-sm); font-size: 1.3rem; }

.balance-card ul { list-style: none; margin-left: 0; }

.balance-card ul li {
  margin-bottom: var(--spacing-sm);
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.6;
}

.balance-harden ul li::before {
  content: "↑";
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-weight: bold;
}

.balance-soften ul li::before {
  content: "↓";
  position: absolute;
  left: 0;
  color: var(--color-teal);
  font-weight: bold;
}

/* Exercise Section (Foundation pages) */
.section-exercise {
  background: linear-gradient(135deg, var(--color-cream) 0%, #FFFFFF 100%);
}

.exercise-box {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 2px solid var(--color-gold);
}

.exercise-title { margin-bottom: var(--spacing-sm); }

.exercise-intro {
  margin-bottom: var(--spacing-sm);
  font-size: 1.05rem;
}

.exercise-steps {
  margin-left: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.exercise-steps li {
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.exercise-steps strong {
  color: var(--color-navy);
  display: block;
  margin-bottom: 0.25rem;
}

.exercise-reflection {
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-grey-light);
  font-style: italic;
}

/* Story Spine Structure */
.story-spine-structure {
  background-color: var(--color-cream);
  padding: var(--spacing-sm);
  border-radius: 6px;
  margin: var(--spacing-sm) 0;
}

.story-spine-structure p {
  margin-bottom: var(--spacing-xs);
  padding-left: var(--spacing-sm);
  border-left: 3px solid var(--color-gold);
}

/* Tool Formula */
.tool-formula {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-style: italic;
  background-color: var(--color-cream);
  padding: var(--spacing-sm);
  border-radius: 6px;
  border-left: 4px solid var(--color-gold);
  margin: var(--spacing-sm) 0;
}

/* Foundation Navigation */
.section-foundation-nav {
  background-color: var(--color-navy);
  padding: var(--spacing-md) 0;
}

.foundation-nav-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--spacing-md);
}

.foundation-nav-card {
  background-color: rgba(255, 255, 255, 0.05);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.foundation-nav-card:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--color-gold);
  transform: translateY(-2px);
}

.foundation-nav-label {
  font-size: 0.85rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-xs);
}

.foundation-nav-number {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-gold);
  margin-bottom: var(--spacing-xs);
}

.foundation-nav-title { color: white; margin-bottom: 0; }

.foundation-nav-arrow {
  position: absolute;
  bottom: var(--spacing-md);
  right: var(--spacing-md);
  font-size: 1.5rem;
  color: var(--color-gold);
}

.foundation-nav-prev .foundation-nav-arrow { left: var(--spacing-md); right: auto; }
.foundation-nav-all { text-align: center; justify-content: center; }

/* ===================================
   EXERCISES PAGE
   =================================== */
.exercises-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.exercise-card {
  background: var(--color-surface);
  border: 2px solid var(--color-grey-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.exercise-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.exercise-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.exercise-number {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gold);
}

.exercise-type {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.exercise-type-worksheet { background: rgba(201, 169, 97, 0.1); color: var(--color-gold); }
.exercise-type-template  { background: rgba(90, 125, 124, 0.1);  color: var(--color-teal); }
.exercise-type-checklist { background: rgba(235, 225, 206, 0.3); color: var(--color-navy); }
.exercise-type-guide     { background: rgba(201, 169, 97, 0.15); color: #8B7355; }
.exercise-type-framework { background: rgba(90, 125, 124, 0.15); color: #3A5D5C; }

.exercise-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.exercise-subtitle {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.exercise-desc {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.exercise-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--color-grey-light);
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.exercise-format {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.exercise-format svg { color: var(--color-gold); }

.exercise-downloads {
  color: var(--color-text-light);
  font-size: 0.85rem;
}

.no-content {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-text-light);
}

.no-content p {
  font-size: 1.1rem;
  line-height: 1.6;
}

.section-usage { background: var(--color-sand-light); }

.usage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.usage-step { text-align: center; }

.usage-number {
  width: 48px;
  height: 48px;
  background: var(--color-gold);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 auto 1rem;
}

.usage-step h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
}

.usage-step p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text);
}

/* ===================================
   ARTICLES PAGE
   =================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2.5rem;
  margin-top: 2rem;
}

.article-card {
  background: var(--color-surface);
  border: 2px solid var(--color-grey-light);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.article-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.article-date {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
  font-weight: 500;
}

.article-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.article-subtitle {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-gold);
  margin-bottom: 1rem;
  font-weight: 400;
  font-style: italic;
  line-height: 1.4;
}

.article-desc {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

.article-quote {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-navy);
  margin: 1.5rem 0;
  padding-left: 1.5rem;
  border-left: 3px solid var(--color-gold);
  line-height: 1.6;
}

.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  margin-top: auto;
  border-top: 1px solid var(--color-grey-light);
}

.article-read-more {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-gold);
  font-weight: 600;
  transition: color 0.25s ease;
}

.article-card:hover .article-read-more { color: var(--color-navy); }

.article-reading-time {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.section-philosophy { background: var(--color-sand-light); }

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.philosophy-point { text-align: left; }

.philosophy-point h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
}

.philosophy-point p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text);
}

.section-related { background: var(--color-surface); }

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.related-card {
  background: var(--color-sand-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
}

.related-card h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-navy);
  margin-bottom: 1rem;
}

.related-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

/* ===================================
   LOGO PAGE ELEMENTS
   =================================== */

/* Container to handle centring and spacing */
.logo-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
  background-color: transparent;
}

/* The Logo itself */
.big-logo {
  width: 100%;
  max-width: 600px;
  height: auto;
  display: block;

  opacity: 0; /* ensures animation starts consistently */
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.08));
  transition: transform 0.4s ease, filter 0.4s ease;
  animation: fadeInLogo 1.5s ease-out forwards;
}

/* Hover effect: only on devices that actually hover */
@media (hover: hover) and (pointer: fine) {
  .big-logo:hover {
    transform: translateY(-5px) scale(1.02);
    filter: drop-shadow(0 15px 30px rgba(184, 134, 11, 0.2));
  }
}

/* Smooth fade-in animation */
@keyframes fadeInLogo {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive adjustment for mobile */
@media (max-width: 768px) {
  .big-logo {
    max-width: 85%;
  }
}

/* Accessibility: respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .big-logo {
    animation: none;
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* ===================================
   ABOUT PAGE
   =================================== */
.section-what { background: var(--color-surface); }

.two-questions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
  padding: 2rem 0;
}

.question-block {
  text-align: center;
  padding: 2rem;
  background: var(--color-sand-light);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-gold);
}

.question-block .question-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.question-block .question-source {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text-light);
  font-weight: 500;
}

.section-for { background: var(--color-sand-light); }

.styled-list { list-style: none; padding: 0; margin: 1.5rem 0; }

.styled-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1rem;
  line-height: 1.7;
}

.styled-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-weight: 600;
  font-size: 1.2rem;
}

.section-why-thinkers { background: var(--color-surface); }

.thinkers-explanation {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  margin-top: 2rem;
}

.thinker-column h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-navy);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-gold);
}

.thinker-column p { margin-bottom: 1rem; line-height: 1.7; }
.thinker-column p:last-child { color: var(--color-text-light); font-style: italic; }

.synthesis {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--color-grey-light);
  text-align: center;
}

.synthesis .large-text {
  max-width: 800px;
  margin: 0 auto;
}

.section-creator { background: var(--color-sand-light); }

.section-creator p { margin-bottom: 1.5rem; line-height: 1.8; }

.section-creator a,
.use-step a {
  color: var(--color-gold);
  text-decoration: underline;
  text-decoration-color: rgba(201, 169, 97, 0.3);
  text-underline-offset: 2px;
  transition: color 0.25s ease, transform 0.25s ease, text-decoration-color 0.25s ease;
}

.section-creator a:hover,
.use-step a:hover {
  color: var(--color-navy);
  text-decoration-color: var(--color-navy);
}

.section-use { background: var(--color-surface); }

.use-steps { margin-top: 2rem; }

.use-step {
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-grey-light);
}

.use-step:last-child { border-bottom: none; }

.use-step h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-navy);
  margin-bottom: 1rem;
}

.use-step p { line-height: 1.7; }

.section-contact { background: var(--color-sand-light); }

.section-contact p { margin-bottom: 1.5rem; line-height: 1.8; }

.external-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-grey-light);
}

.external-link {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-gold);
  font-weight: 500;
  transition: color 0.25s ease, transform 0.25s ease;
}

.external-link:hover {
  color: var(--color-navy);
  transform: translateX(4px);
}

/* =========================
   Responsive (Global)
   ========================= */
@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }

  /* Brand tweaks */
  .nav-brand .brand-text { display: none; }
  .nav-brand .logo { height: 55px; }

  /* Hamburger visible */
  .nav-toggle { display: flex; }

  /* Turn menu into dropdown */
  .nav-menu {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;

    display: flex;              /* keep flex so .active can animate height */
    flex-direction: column;
    gap: 0;

    background: var(--color-surface);
    border-bottom: 1px solid var(--color-grey-light);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.10);

    max-height: 0;
    overflow: hidden;
    opacity: 0;
    padding: 0;

    transition: max-height 0.28s ease, opacity 0.22s ease, padding 0.22s ease;
    z-index: 1000;
  }

  .nav-menu.active {
    max-height: 520px;  /* enough for your 4 links */
    opacity: 1;
    padding: 0.5rem 0;
  }

  .nav-menu a {
    display: block;
    padding: 1rem 2rem;
    border-radius: 0;
    border-bottom: 1px solid var(--color-grey-light);
  }

  .nav-menu a:last-child { border-bottom: none; }
  .nav-menu a.active::after { display: none; } /* underline looks odd in dropdown */

  /* Hero blocks */
  .dual-lens { flex-direction: column; gap: var(--spacing-sm); }
  .lens-overlap { width: 100px; height: 100px; }
  .hero-questions { grid-template-columns: 1fr; }
  .thinkers-grid { grid-template-columns: 1fr; }
  .false-choices { flex-direction: column; }

  /* Footer */
  .footer-content { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr; }

  /* Foundation */
  .balance-grid { grid-template-columns: 1fr; }
  .foundation-nav-grid { grid-template-columns: 1fr; }
  .philosopher-header { flex-direction: column; text-align: center; }
  .foundation-meta { flex-direction: column; gap: 0.25rem; }

  /* Exercises */
  .exercises-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .exercise-card { padding: 1.5rem; }
  .exercise-title { font-size: 1.25rem; }
  .usage-grid { grid-template-columns: 1fr; gap: 2rem; }
  .exercise-footer { flex-direction: column; gap: 0.5rem; align-items: flex-start; }

  /* Articles */
  .articles-grid { grid-template-columns: 1fr; gap: 2rem; }
  .article-card { padding: 2rem; }
  .article-title { font-size: 1.5rem; }
  .article-subtitle { font-size: 1rem; }
  .philosophy-grid { grid-template-columns: 1fr; gap: 2rem; }
  .related-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .article-footer { flex-direction: column; gap: 0.75rem; align-items: flex-start; }

  /* About */
  .two-questions { grid-template-columns: 1fr; gap: 1.5rem; }
  .question-block { padding: 1.5rem; }
  .question-block .question-text { font-size: 1.1rem; }
  .thinkers-explanation { grid-template-columns: 1fr; gap: 2rem; }
  .use-step { padding: 1.5rem 0; }
  .use-step h3 { font-size: 1.25rem; }

  /* Logo */
  .big-logo { max-width: 85%; }
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }

  .hero { padding: var(--spacing-lg) 0; }
  .section { padding: var(--spacing-lg) 0; }

  .lens { width: 150px; height: 150px; }

  .btn { padding: 0.75rem 1.5rem; font-size: 0.9rem; }

  .exercise-header { flex-direction: column; gap: 0.5rem; }
  .article-card { padding: 1.5rem; }
  .article-quote { font-size: 0.95rem; padding-left: 1rem; }

  .styled-list li { padding-left: 1.5rem; }
  .external-links { gap: 0.75rem; }
}

/* =========================
   Reduced Motion
   ========================= */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .btn,
  .foundation-card,
  .start-card,
  .exercise-card,
  .article-card,
  .big-logo {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }
}