/* === Custom Properties === */
:root {
  --surface: #E8DFD3;
  --deep: #2A1A0E;
  --text: #3D2B1F;
  --triad-a: #8B6914;
  --triad-b: #14708B;
  --triad-c: #6B1450;
  --highlight: #F5F0E8;
  --cream: #FFF8EE;
  --neo-light: inset 4px 4px 8px rgba(255, 248, 238, 0.7);
  --neo-shadow: 6px 6px 14px rgba(42, 26, 14, 0.25);
  --neo-inset-shadow: inset 6px 6px 14px rgba(42, 26, 14, 0.2);
  --neo-inset-light: inset -4px -4px 8px rgba(255, 248, 238, 0.5);
}

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

body {
  background: var(--surface);
  color: var(--text);
  font-family: 'Nunito Sans', -apple-system, Arial, sans-serif;
  font-weight: 300;
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  line-height: 1.72;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  /* Leather texture */
  background-image:
    repeating-linear-gradient(0deg, transparent 0%, rgba(42,26,14,0.03) 50%, transparent 100%),
    radial-gradient(ellipse at 50% 50%, var(--surface) 0%, #D8CFC3 100%);
  background-size: 100% 4px, 100% 100%;
  background-attachment: fixed;
}

/* === Typography === */
h1, h2, h3 {
  font-family: 'Jost', -apple-system, Arial, sans-serif;
}

.epigraph {
  font-family: 'Cormorant', Georgia, serif;
  font-weight: 300;
  font-style: italic;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--triad-a);
  margin-bottom: 1.5rem;
}

p {
  margin-bottom: 1rem;
}

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

em {
  font-style: italic;
}

/* === Hero === */
.hero {
  min-height: 120vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, var(--deep) 0%, var(--surface) 100%);
  position: relative;
}

.hero-inner {
  text-align: center;
  padding: 2rem;
}

.hero-title {
  position: relative;
  display: inline-block;
}

.hero-text {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: clamp(3rem, 10vw, 8rem);
  letter-spacing: 0.03em;
  line-height: 1.08;
  color: var(--highlight);
  text-transform: lowercase;
}

.hero-underline {
  display: block;
  height: 2px;
  background: var(--triad-a);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 800ms cubic-bezier(0.25, 0.1, 0.25, 1.0);
  margin-top: 8px;
}

.hero-underline.drawn {
  transform: scaleX(1);
}

.hero-subtitle {
  font-family: 'Cormorant', Georgia, serif;
  font-weight: 300;
  font-style: italic;
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--triad-a);
  letter-spacing: 0.02em;
  line-height: 1.45;
  margin-top: 1.5rem;
  opacity: 0;
  transition: opacity 600ms ease;
}

.hero-subtitle.visible {
  opacity: 1;
}

/* === Navigation === */
.neo-nav {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  transition: opacity 400ms ease;
  pointer-events: none;
}

.neo-nav.visible {
  opacity: 1;
  pointer-events: auto;
}

.nav-pill {
  display: block;
  font-family: 'Jost', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--surface);
  box-shadow: var(--neo-light), var(--neo-shadow);
  transition: box-shadow 150ms ease, transform 150ms ease;
}

.nav-pill:active {
  box-shadow: var(--neo-inset-shadow), var(--neo-inset-light);
  transform: translateY(1px);
}

/* === Folio Sections === */
.folio {
  max-width: 1200px;
  margin: 0 auto 80px;
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--surface);
  border-radius: 12px;
  box-shadow:
    var(--neo-light),
    var(--neo-shadow),
    inset 0 2px 4px rgba(42, 26, 14, 0.08);
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.folio.revealed {
  opacity: 1;
  transform: translateY(0);
}

.folio-grid {
  display: grid;
  grid-template-columns: 1fr 4fr 1fr;
  gap: clamp(1rem, 2vw, 2rem);
}

.folio-gutter {
  /* Empty gutter column */
}

.folio-content {
  max-width: 680px;
}

.folio-margin {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 1rem;
}

/* Folio Titles */
.folio-title {
  font-weight: 600;
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  letter-spacing: 0.03em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

/* Underline Draw */
.underline-draw::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--triad-c);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 600ms cubic-bezier(0.25, 0.1, 0.25, 1.0);
}

.underline-draw.drawn::after {
  transform: scaleX(1);
}

/* === Medallions === */
.medallion {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--surface);
  box-shadow: var(--neo-light), var(--neo-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: medallionRotate 120s linear infinite;
  color: var(--triad-a);
}

.medallion svg {
  width: 36px;
  height: 36px;
}

/* Alternate medallion colors */
.folio:nth-child(odd) .medallion { color: var(--triad-a); }
.folio:nth-child(even) .medallion { color: var(--triad-b); }

@keyframes medallionRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* === Terminal Section === */
.terminal {
  max-width: 900px;
  margin: 0 auto 120px;
  padding: clamp(3rem, 6vw, 5rem);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--neo-inset-shadow), var(--neo-inset-light);
  text-align: center;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.terminal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.terminal-inner {
  max-width: 640px;
  margin: 0 auto;
}

.terminal-text {
  font-family: 'Cormorant', Georgia, serif;
  font-weight: 300;
  font-style: italic;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--triad-a);
}

.medallion-terminal {
  margin: 2rem auto 0;
  color: var(--triad-c);
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  .medallion { animation: none; }
  .folio, .terminal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-underline { transform: scaleX(1); transition: none; }
  .hero-subtitle { opacity: 1; transition: none; }
  .underline-draw::after { transform: scaleX(1); transition: none; }
}

/* === Responsive === */
@media (max-width: 768px) {
  .folio-grid {
    grid-template-columns: 1fr;
  }

  .folio-gutter { display: none; }

  .folio-margin {
    justify-content: flex-start;
    padding-top: 1.5rem;
  }

  .neo-nav {
    right: 12px;
    gap: 8px;
  }

  .nav-pill {
    font-size: 0.7rem;
    padding: 6px 10px;
  }

  .hero {
    min-height: 100vh;
  }
}