/* ==========================================================================
   Salt and Bitterness - A Biblical Meditation
   A contemplative, high-design landing page
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Salt palette - warm, luminous */
  --salt-bg: #f8f5f0;
  --salt-bg-gradient: linear-gradient(135deg, #f8f5f0 0%, #ebe5db 50%, #e8e0d5 100%);
  --salt-text: #3d3a35;
  --salt-text-muted: #6b665d;
  --salt-accent: #8b7355;
  --salt-glow: rgba(212, 190, 160, 0.4);

  /* Bitter palette - deep, transformative */
  --bitter-bg: #1a1816;
  --bitter-bg-gradient: linear-gradient(160deg, #1a1816 0%, #252220 40%, #1f1c1a 100%);
  --bitter-text: #e8e4df;
  --bitter-text-muted: #9a958e;
  --bitter-accent: #c9a87c;
  --bitter-glow: rgba(201, 168, 124, 0.15);

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

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

  /* Transitions */
  --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-quick: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--salt-text);
  background: var(--salt-bg);
  overflow-x: hidden;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: var(--space-md) var(--space-lg);
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--salt-text-muted);
}

.logo__icon {
  font-size: 1.5rem;
  color: var(--salt-accent);
}

/* --------------------------------------------------------------------------
   Section Base
   -------------------------------------------------------------------------- */
.section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.section__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.section__content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

/* --------------------------------------------------------------------------
   Salt Section
   -------------------------------------------------------------------------- */
.section--salt {
  background: var(--salt-bg-gradient);
  color: var(--salt-text);
}

.section--salt .section__bg {
  background:
    radial-gradient(ellipse 80% 50% at 20% 20%, var(--salt-glow) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(255, 250, 240, 0.8) 0%, transparent 40%);
}

.section--salt .section__content {
  padding-top: 140px;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.hero__label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--salt-text-muted);
  margin-bottom: var(--space-md);
  padding: 0.5rem 1.5rem;
  border: 1px solid currentColor;
  border-radius: 2px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 7rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  color: var(--salt-text);
}

.hero__subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-style: italic;
  line-height: 1.5;
  max-width: 700px;
  margin: 0 auto var(--space-sm);
  color: var(--salt-text-muted);
}

.hero__cite {
  font-size: 0.875rem;
  color: var(--salt-accent);
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   Essence Cards
   -------------------------------------------------------------------------- */
.essence {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.essence__card {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(139, 115, 85, 0.15);
  border-radius: 4px;
  transition: var(--transition-smooth);
}

.essence__card:hover {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(139, 115, 85, 0.3);
  transform: translateY(-4px);
}

.essence__icon {
  font-size: 2rem;
  color: var(--salt-accent);
  margin-bottom: var(--space-sm);
  opacity: 0.8;
}

.essence__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--salt-text);
}

.essence__text {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--salt-text-muted);
}

.essence__cite {
  display: block;
  margin-top: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--salt-accent);
  font-style: normal;
}

/* --------------------------------------------------------------------------
   Divider
   -------------------------------------------------------------------------- */
.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-xl) 0;
}

.divider__line {
  flex: 1;
  max-width: 150px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--salt-accent), transparent);
}

.divider__symbol {
  font-size: 1.5rem;
  color: var(--salt-accent);
  opacity: 0.6;
}

/* --------------------------------------------------------------------------
   Bitter Section
   -------------------------------------------------------------------------- */
.section--bitter {
  background: var(--bitter-bg-gradient);
  color: var(--bitter-text);
}

.section--bitter .section__bg {
  background:
    radial-gradient(ellipse 100% 80% at 0% 100%, var(--bitter-glow) 0%, transparent 50%),
    radial-gradient(ellipse 60% 50% at 100% 0%, rgba(50, 45, 40, 0.5) 0%, transparent 40%);
}

/* --------------------------------------------------------------------------
   Bitterness Hero
   -------------------------------------------------------------------------- */
.bitterness {
  text-align: center;
  padding: var(--space-xl) 0;
}

.bitterness__label {
  display: inline-block;
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--bitter-accent);
  margin-bottom: var(--space-md);
  padding: 0.5rem 1.5rem;
  border: 1px solid var(--bitter-accent);
  border-radius: 2px;
  opacity: 0.8;
}

.bitterness__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  color: var(--bitter-text);
}

.bitterness__quote {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-style: italic;
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto var(--space-sm);
  color: var(--bitter-text-muted);
}

.bitterness__cite {
  font-size: 0.875rem;
  color: var(--bitter-accent);
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   Contrast Stories
   -------------------------------------------------------------------------- */
.contrast {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.contrast__story {
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(201, 168, 124, 0.1);
  border-radius: 4px;
  transition: var(--transition-smooth);
}

.contrast__story:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(201, 168, 124, 0.2);
}

.contrast__marker {
  display: inline-block;
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bitter-accent);
  margin-bottom: var(--space-sm);
  padding: 0.25rem 0.75rem;
  background: rgba(201, 168, 124, 0.1);
  border-radius: 2px;
}

.contrast__marker--dark {
  background: rgba(201, 168, 124, 0.2);
}

.contrast__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: var(--space-sm);
  color: var(--bitter-text);
}

.contrast__text {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--bitter-text-muted);
  margin-bottom: var(--space-sm);
}

.contrast__text:last-of-type {
  color: var(--bitter-text);
}

.contrast__cite {
  display: block;
  margin-top: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--bitter-accent);
  font-style: normal;
}

/* --------------------------------------------------------------------------
   Call to Action
   -------------------------------------------------------------------------- */
.call {
  text-align: center;
  padding: var(--space-xl);
  background: linear-gradient(135deg, rgba(201, 168, 124, 0.08) 0%, rgba(201, 168, 124, 0.03) 100%);
  border: 1px solid rgba(201, 168, 124, 0.15);
  border-radius: 4px;
  margin-top: var(--space-lg);
}

.call__icon {
  font-size: 2rem;
  color: var(--bitter-accent);
  margin-bottom: var(--space-md);
  opacity: 0.7;
}

.call__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  margin-bottom: var(--space-md);
  color: var(--bitter-text);
}

.call__text {
  font-size: 1rem;
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto var(--space-sm);
  color: var(--bitter-text-muted);
}

.call__text--highlight {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--bitter-text);
  margin-top: var(--space-md);
}

.call__cite {
  font-size: 0.875rem;
  color: var(--bitter-accent);
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: #0d0c0b;
  color: var(--bitter-text);
}

.footer__content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}

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

.footer__verse p {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--bitter-text-muted);
}

.footer__verse cite {
  display: block;
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  color: var(--bitter-accent);
  font-style: normal;
}

.footer__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--bitter-text-muted);
  opacity: 0.6;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.essence__card:nth-child(1) { transition-delay: 0.1s; }
.essence__card:nth-child(2) { transition-delay: 0.2s; }
.essence__card:nth-child(3) { transition-delay: 0.3s; }

.contrast__story:nth-child(1) { transition-delay: 0.15s; }
.contrast__story:nth-child(2) { transition-delay: 0.3s; }

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --space-lg: 2rem;
    --space-xl: 4rem;
  }

  .header {
    padding: var(--space-sm) var(--space-md);
  }

  .section__content {
    padding: var(--space-lg) var(--space-md);
  }

  .section--salt .section__content {
    padding-top: 100px;
  }

  .logo__text {
    display: none;
  }

  .essence {
    grid-template-columns: 1fr;
  }

  .contrast {
    grid-template-columns: 1fr;
  }

  .call {
    padding: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .hero__label,
  .bitterness__label {
    font-size: 0.625rem;
    padding: 0.375rem 1rem;
  }

  .essence__card {
    padding: var(--space-md);
  }

  .contrast__story {
    padding: var(--space-md);
  }
}

/* --------------------------------------------------------------------------
   Selection & Scrollbar (subtle polish)
   -------------------------------------------------------------------------- */
::selection {
  background: rgba(139, 115, 85, 0.3);
  color: inherit;
}

.section--bitter ::selection {
  background: rgba(201, 168, 124, 0.3);
}

/* Custom scrollbar for webkit browsers */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--salt-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--salt-accent);
  border-radius: 4px;
}

.section--bitter ~ ::-webkit-scrollbar-track,
.section--bitter ~ .footer ::-webkit-scrollbar-track {
  background: var(--bitter-bg);
}