/* ==========================================================================
   Grace Photos — Base
   Reset, typography defaults, layout primitives, motion & a11y baseline.
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--color-void);
  color: var(--color-ivory-dim);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, video, svg { display: block; max-width: 100%; }
img { height: auto; }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }
ul, ol { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-ivory);
  line-height: 1.15;
  letter-spacing: 0.01em;
}

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

/* Visible keyboard focus everywhere — never suppressed */
:focus-visible {
  outline: 1px solid var(--color-gold);
  outline-offset: 4px;
  border-radius: 2px;
}

@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;
    scroll-behavior: auto !important;
  }
}

/* ---- Layout primitives ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section { padding-block: var(--section-pad); position: relative; }
.section--tight { padding-block: clamp(3rem, 2.6rem + 2vw, 5rem); }
.section--charcoal {
  position: relative;
  background: var(--color-charcoal);
  overflow: hidden;
}
.section--charcoal::before {
  content: "";
  position: absolute; inset: 0;
  z-index: -1;
  opacity: 1;
  background:
    radial-gradient(circle at 82% 12%, rgba(82, 125, 226, 0.12), transparent 34%),
    radial-gradient(circle at 10% 88%, rgba(69, 204, 214, 0.06), transparent 30%);
}

main { display: block; }

/* ---- Type utilities ---- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--color-gold);
  display: inline-block;
}

.section-head { max-width: 640px; margin-bottom: var(--space-xl); }
.section-head h2 { margin-top: var(--space-sm); }
.section-head p { margin-top: var(--space-sm); color: var(--color-stone); font-size: var(--fs-lead); }

.section-head--center { max-width: 620px; margin-inline: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head--center .eyebrow::before { display: none; }
.section-head--center .eyebrow::after {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--color-gold);
  display: inline-block;
}

.lede { font-size: var(--fs-lead); color: var(--color-stone); max-width: 56ch; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: 0.9em 1.9em;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-cinematic),
              background var(--dur-fast) ease,
              color var(--dur-fast) ease,
              border-color var(--dur-fast) ease,
              box-shadow var(--dur-fast) ease;
}

.btn--gold {
  background: linear-gradient(135deg, var(--color-gold-bright), var(--color-gold-deep));
  color: #17130d;
  border: 1px solid transparent;
}
.btn--gold:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(125,167,255,0.55); }
.btn svg { width: 1.1em; height: 1.1em; flex-shrink: 0; }

.btn--outline {
  background: transparent;
  color: var(--color-ivory);
  border: 1px solid var(--color-line-strong);
}
.btn--outline:hover { border-color: var(--color-gold); color: var(--color-gold-bright); transform: translateY(-2px); }

.btn--ghost {
  background: transparent;
  color: var(--color-gold);
  border: 1px solid transparent;
  padding: 0.6em 0.2em;
  letter-spacing: 0.12em;
}
.btn--ghost svg { transition: transform var(--dur-fast) var(--ease-cinematic); }
.btn--ghost:hover svg { transform: translateX(4px); }

/* ---- Aperture ring — signature mark, used as a scroll cue, dividers, icons ---- */
.aperture {
  --ap-size: 46px;
  width: var(--ap-size);
  height: var(--ap-size);
  border-radius: 50%;
  border: 1px solid var(--color-line-strong);
  position: relative;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.aperture::before {
  content: "";
  width: 60%;
  height: 60%;
  border-radius: 50%;
  border: 1px solid var(--color-gold);
  opacity: 0.6;
}

/* ---- Divider ---- */
.tick-divider {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 14px;
}
.tick-divider span {
  width: 1px;
  height: 100%;
  background: var(--color-line);
}
.tick-divider span:nth-child(3n) { height: 60%; align-self: center; background: var(--color-gold); opacity: 0.5; }

/* ---- Reveal-on-scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 900ms var(--ease-cinematic), transform 900ms var(--ease-cinematic);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-stagger > * { transition-delay: calc(var(--stagger-i, 0) * 70ms); }

/* ---- Skip link ---- */
.skip-link {
  position: fixed;
  top: -60px;
  left: var(--space-md);
  z-index: 999;
  background: var(--color-gold);
  color: var(--color-void);
  padding: 0.7em 1.2em;
  border-radius: var(--radius-sm);
  font-size: var(--fs-small);
  letter-spacing: 0.05em;
  transition: top var(--dur-fast) ease;
}
.skip-link:focus { top: var(--space-md); }

/* ---- Visually hidden (a11y) ---- */
.vh {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---- Lazy image fade-in ---- */
img.lazy-img {
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-cinematic);
}
img.lazy-img.is-loaded { opacity: 1; }