*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
  background-color: var(--bg-void);
  color: var(--ink-ivory);
  font-family: var(--font-sans);
  font-size: 100%; /* Respect OS text scale preference */
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scrollbar-color: var(--gold-burnished) var(--bg-sanctuary);
  scrollbar-width: thin;
}

body {
  margin: 0;
  min-height: 100dvh;
  background-color: var(--bg-obsidian);
  background-image:
    radial-gradient(ellipse 70% 45% at 78% 8%, rgba(110, 22, 34, 0.28), transparent 70%),
    radial-gradient(ellipse 55% 40% at 12% 38%, rgba(198, 156, 83, 0.07), transparent 65%),
    radial-gradient(ellipse 65% 50% at 85% 78%, rgba(94, 20, 28, 0.2), transparent 70%);
  accent-color: var(--brand-color);
  overflow-x: clip;
}

::selection {
  background-color: var(--gold-burnished);
  color: var(--bg-void);
}

/* Subtle tactile film grain without blocking clicks */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: var(--z-grain);
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Typography & Legibility */
h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.08;
  color: var(--ink-ivory);
  text-wrap: balance;
}

p,
blockquote,
li {
  margin: 0;
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-luxury),
    border-color var(--duration-fast) var(--ease-luxury),
    background-color var(--duration-fast) var(--ease-luxury);
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

/* High-contrast accessible focus ring */
:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 3px;
}

/* Skip link for keyboard navigation */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: var(--gold-bright);
  color: var(--bg-void);
  font-weight: 600;
  font-size: var(--text-sm);
}

.skip-link:focus {
  top: 1rem;
}

/* Canonical accessible visually-hidden utility */
.visually-hidden {
  position: absolute !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  border: 0 !important;
  white-space: nowrap !important;
}

/* Editorial Overlines & Numerals */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-engraved);
  font-size: var(--text-xs);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-burnished);
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 1.75rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-burnished));
}

.italic-gold {
  font-style: italic;
  color: var(--gold-bright);
}

/* Sultane Noire Unified Photo Grading */
.photo-sultane {
  filter: contrast(1.08) saturate(0.82) sepia(0.18) brightness(0.92);
  transition: transform var(--duration-slow) var(--ease-luxury),
    filter var(--duration-med) var(--ease-luxury);
}

.photo-frame:hover .photo-sultane {
  transform: scale(1.03);
  filter: contrast(1.1) saturate(0.9) sepia(0.12) brightness(0.97);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}