/* Of Value To Life — Design System
   Typography: Baskerville, Garamond Pro
   Palette: Cream, Charcoal, Gold, Silver
   ============================================ */

/* === Fonts === */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  /* Typography */
  --font-heading: 'Libre Baskerville', Baskerville, 'Times New Roman', serif;
  --font-body: 'EB Garamond', 'Adobe Garamond Pro', Garamond, serif;
  --font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Colors */
  --color-cream: #FAF8F5;
  --color-cream-dark: #F0EDE8;
  --color-charcoal: #2C2C2C;
  --color-charcoal-light: #4A4A4A;
  --color-gold: #B8860B;
  --color-gold-soft: #D4AF37;
  --color-gold-pale: rgba(184, 134, 11, 0.1);
  --color-silver: #A8A8A0;
  --color-silver-light: #C8C8C0;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --space-2xl: 12rem;

  /* Typography Scale */
  --text-xs: 0.875rem;
  --text-sm: 1rem;
  --text-base: 1.125rem;
  --text-lg: 1.375rem;
  --text-xl: 1.75rem;
  --text-2xl: 2.25rem;
  --text-3xl: 3rem;
  --text-4xl: 4rem;

  /* Layout */
  --max-width: 1200px;
  --content-width: 720px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.8s ease;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Skip Link (Accessibility) === */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-charcoal);
  color: var(--color-cream);
  padding: var(--space-xs) var(--space-sm);
  z-index: 200;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* === Typography === */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-charcoal);
}

h1 {
  font-size: var(--text-4xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-3xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

p {
  margin-bottom: 1.5em;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-gold);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

blockquote {
  font-style: italic;
  font-size: var(--text-xl);
  color: var(--color-charcoal-light);
  border-left: 2px solid var(--color-gold);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
}

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

.content {
  max-width: var(--content-width);
  margin: 0 auto;
}

.section {
  padding: var(--space-xl) 0;
}

.section--hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) var(--space-md);
  background: linear-gradient(to bottom, var(--color-cream) 0%, transparent 100%);
  transition: background var(--transition-medium);
}

.nav--scrolled {
  background: var(--color-cream);
  box-shadow: 0 1px 0 var(--color-cream-dark);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-charcoal);
}

.nav__logo:hover {
  color: var(--color-gold);
}

.nav__links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav__link {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-charcoal-light);
}

.nav__link:hover {
  color: var(--color-gold);
}

.nav__link--active {
  color: var(--color-gold);
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  visibility: hidden;
}

.nav__toggle span {
  display: none;
  width: 24px;
  height: 2px;
  background: var(--color-charcoal);
  margin: 5px 0;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Hamburger to X animation */
.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* === Hero === */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl) 0;
}

.hero__question {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-style: italic;
  color: var(--color-gold);
  max-width: 800px;
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease forwards;
  animation-delay: 0.3s;
}

.hero__description {
  font-size: var(--text-lg);
  max-width: 640px;
  color: var(--color-charcoal-light);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease forwards;
  animation-delay: 0.6s;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-silver);
  opacity: 0;
  animation: fadeIn 1s ease forwards;
  animation-delay: 1.2s;
}

.hero__scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: var(--color-silver);
  margin: var(--space-sm) auto 0;
  animation: scrollLine 2s ease-in-out infinite;
}

/* === Cards === */
.card {
  background: white;
  padding: var(--space-lg);
  border-radius: 4px;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
}

.card__number {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

.card__text {
  color: var(--color-charcoal-light);
}

/* === Grid === */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

/* === Divider === */
.divider {
  width: 60px;
  height: 1px;
  background: var(--color-gold);
  margin: var(--space-md) 0;
}

.divider--center {
  margin-left: auto;
  margin-right: auto;
}

/* === Button === */
.btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-charcoal);
  color: var(--color-charcoal);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn:hover {
  background: var(--color-charcoal);
  color: var(--color-cream);
}

.btn--gold {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

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

/* === Footer === */
.footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-cream-dark);
  text-align: center;
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-charcoal);
  margin-bottom: var(--space-sm);
}

.footer__text {
  font-size: var(--text-sm);
  color: var(--color-silver);
  max-width: 480px;
  margin: 0 auto var(--space-sm);
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  list-style: none;
  margin-bottom: var(--space-sm);
}

.footer__link {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-silver);
}

.footer__link:hover {
  color: var(--color-gold);
}

.footer__copyright {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: var(--color-silver-light);
}

/* === Thesis Section === */
.thesis {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-cream-dark);
}

.thesis:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.thesis__number {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.thesis__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

.thesis__text {
  color: var(--color-charcoal-light);
}

.thesis__points {
  list-style: none;
  margin-top: var(--space-sm);
}

.thesis__points li {
  position: relative;
  padding-left: 1.5em;
  margin-bottom: 0.5em;
  color: var(--color-charcoal-light);
}

.thesis__points li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-gold);
}

/* === Journal/Blog === */
.journal-card {
  display: block;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-cream-dark);
  transition: transform var(--transition-fast);
}

.journal-card:hover {
  transform: translateX(8px);
}

.journal-card__date {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: var(--color-silver);
  margin-bottom: var(--space-xs);
}

.journal-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-charcoal);
  margin-bottom: var(--space-xs);
  transition: color var(--transition-fast);
}

.journal-card:hover .journal-card__title {
  color: var(--color-gold);
}

.journal-card__excerpt {
  color: var(--color-charcoal-light);
}

/* === Page Header === */
.page-header {
  padding: var(--space-2xl) 0 var(--space-md);
  text-align: center;
}

.page-header__title {
  margin-bottom: var(--space-sm);
}

.page-header__subtitle {
  font-size: var(--text-lg);
  color: var(--color-charcoal-light);
  max-width: 600px;
  margin: 0 auto;
}

.page-header + .section {
  padding-top: var(--space-sm);
}

.page-header + .section + .section {
  padding-top: var(--space-md);
}

/* === Intro/Lead Text Styles === */
.intro-lead {
  font-size: var(--text-xl);
  color: var(--color-gold);
  font-style: italic;
  margin-bottom: var(--space-lg);
}

.section-label {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

/* === Animations === */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollLine {

  0%,
  100% {
    transform: scaleY(0);
    transform-origin: top;
  }

  50% {
    transform: scaleY(1);
    transform-origin: top;
  }

  51% {
    transform-origin: bottom;
  }
}

/* Fade in on scroll */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Responsive === */
@media (max-width: 1024px) {
  :root {
    --text-4xl: 3rem;
    --text-3xl: 2.25rem;
  }

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --text-4xl: 2.5rem;
    --text-3xl: 2rem;
    --text-2xl: 1.5rem;
  }

  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--color-cream);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
  }

  .nav__links.active {
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    font-size: var(--text-lg);
  }

  .nav__toggle {
    display: block;
    visibility: visible;
    z-index: 101;
  }

  .nav__toggle span {
    display: block;
  }

  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

  .hero__question {
    font-size: var(--text-2xl);
  }
}

@media (max-width: 480px) {
  :root {
    --space-xl: 4rem;
    --space-lg: 2rem;
  }
}

/* === Utility Classes === */
.text-center {
  text-align: center;
}

.text-gold {
  color: var(--color-gold);
}

.text-silver {
  color: var(--color-silver);
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mt-lg {
  margin-top: var(--space-lg);
}