/* style.css — Jon D. Levin author splash
   Warm literary palette. Boska display + Source Serif 4 body. */

:root, [data-theme="light"] {
  /* Type scale */
  --text-xs:   clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl:  clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 7.5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 240ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Fonts */
  --font-display: 'Boska', 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Source Serif 4', Georgia, serif;
  --font-ui: 'Satoshi', 'Inter', system-ui, sans-serif;

  /* Warm cream / cocoa / sienna palette */
  --color-bg:            #ede1cb;  /* warm cream */
  --color-surface:       #f2e8d4;
  --color-surface-2:     #f6eeda;
  --color-surface-offset: #e2d3b6;
  --color-divider:       #c9b791;
  --color-border:        #b8a476;

  --color-text:          #3a2416;  /* deep cocoa */
  --color-text-muted:    #7a5a3f;  /* walnut */
  --color-text-faint:    #a88a67;  /* tan */

  --color-primary:       #8a3a12;  /* burnt sienna accent */
  --color-primary-hover: #6b2a0d;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 60 / 0.08);
  --shadow-md: 0 8px 24px oklch(0.2 0.02 60 / 0.10);
}

[data-theme="dark"] {
  --color-bg:            #1a130c;  /* deep espresso */
  --color-surface:       #221812;
  --color-surface-2:     #2a1e16;
  --color-surface-offset: #2f2318;
  --color-divider:       #3a2c1e;
  --color-border:        #4a3a29;

  --color-text:          #f0e2c6;  /* warm cream text */
  --color-text-muted:    #b39875;
  --color-text-faint:    #7a6349;

  --color-primary:       #e2985e;  /* glowing amber sienna */
  --color-primary-hover: #f2b17a;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.4);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:            #1a130c;
    --color-surface:       #221812;
    --color-surface-2:     #2a1e16;
    --color-surface-offset: #2f2318;
    --color-divider:       #3a2c1e;
    --color-border:        #4a3a29;
    --color-text:          #f0e2c6;
    --color-text-muted:    #b39875;
    --color-text-faint:    #7a6349;
    --color-primary:       #e2985e;
    --color-primary-hover: #f2b17a;
  }
}

/* Layout */
.page {
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: clamp(var(--space-6), 3vw, var(--space-10));
  position: relative;
  overflow: hidden;
}

/* Warm layered glow — tan/sienna wash */
.page::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 70% at 18% 8%, oklch(from var(--color-primary) l c h / 0.14), transparent 60%),
    radial-gradient(ellipse 80% 60% at 88% 92%, oklch(from var(--color-primary) l c h / 0.12), transparent 65%),
    radial-gradient(ellipse 60% 50% at 50% 50%, oklch(from var(--color-surface) l c h / 0.5), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.page > * {
  position: relative;
  z-index: 1;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.mark svg {
  color: var(--color-primary);
}

.mark-label {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  font-weight: 500;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid transparent;
}

.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-border);
  background: var(--color-surface);
}

/* Hero */
.hero {
  display: grid;
  place-items: center;
  text-align: center;
  padding-block: clamp(var(--space-10), 8vw, var(--space-24));
}

.hero-inner {
  max-width: 62ch;
  display: grid;
  gap: var(--space-8);
  justify-items: center;
}

.eyebrow {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.32em;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.eyebrow::before,
.eyebrow::after {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-divider);
}

.title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-hero);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--color-text);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .title {
    white-space: normal;
  }
}

.title .initial {
  font-style: italic;
  font-weight: 400;
  color: var(--color-primary);
}

.tagline {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.32em;
  color: var(--color-text-muted);
  line-height: 1.4;
  /* offset the right-side tracking so the word stays visually centered */
  padding-left: 0.32em;
}

.divider {
  width: 48px;
  height: 1px;
  background: var(--color-border);
  margin-block: var(--space-2);
}

.cta {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-3) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: oklch(from var(--color-surface) l c h / 0.6);
  backdrop-filter: blur(4px);
}

.cta:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-surface);
}

.cta svg {
  transition: transform var(--transition-interactive);
}

.cta:hover svg {
  transform: translateX(3px);
}

/* Footer */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.05em;
}

.site-footer a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-primary);
}

.footer-nav {
  display: flex;
  gap: var(--space-6);
}

/* Mobile */
@media (max-width: 640px) {
  .site-header {
    flex-direction: row;
  }
  .mark-label {
    display: none;
  }
  .site-footer {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
  .footer-nav {
    gap: var(--space-4);
  }
  .eyebrow::before,
  .eyebrow::after {
    width: 20px;
  }
}