/* ==========================================================================
   Containers, section rhythm, reveal-on-scroll
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--wide {
  max-width: var(--container-wide);
}

.container--flush {
  max-width: var(--container-wide);
  padding-inline: 0;
}

.section {
  position: relative;
  padding-block: var(--section-y);
}

.section--tight   { padding-block: calc(var(--section-y) * .65); }
.section--flush   { padding-block: 0; }
.section--top     { padding-block: var(--section-y) 0; }

.section--light   { background: var(--c-bg); }
.section--beige   { background: var(--c-beige); }
.section--neutral { background: var(--c-neutral-100); }
.section--dark    { background: var(--c-dark);   color: var(--c-on-dark); }
.section--darker  { background: var(--c-darker); color: var(--c-on-dark); }

.section--rule { border-top: 1px solid var(--c-border); }

/* Two-column split used by the intro, process, contact and model sections. */
.split {
  display: grid;
  gap: 3rem;
}

@media (min-width: 768px) {
  .split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4rem;
    align-items: center;
  }
  .split--top   { align-items: start; }
  .split--wide  { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); }
  .split--aside { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); }
}

/* Section heading block ---------------------------------------------------- */

.section-head {
  max-width: 52rem;
  margin-bottom: 3.5rem;
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head--split {
  max-width: none;
  display: grid;
  gap: 1.5rem;
  align-items: end;
}

@media (min-width: 768px) {
  .section-head { margin-bottom: 5rem; }
  .section-head--split {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 3rem;
  }
  .section-head--split .section-head__aside {
    max-width: 24rem;
    margin-left: auto;
    text-align: right;
    color: var(--c-muted);
    font-size: var(--fs-small);
    line-height: 1.6;
  }
}

/* Reveal on scroll --------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--dur-slow) var(--ease),
    transform var(--dur-slow) var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }
.reveal[data-delay="5"] { transition-delay: .40s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* Visibility helpers ------------------------------------------------------- */

.only-mobile { display: block; }
.only-desk   { display: none; }

@media (min-width: 768px) {
  .only-mobile { display: none; }
  .only-desk   { display: block; }
  .only-desk--flex { display: flex; }
  .only-desk--grid { display: grid; }
}

/* ---- WordPress additions -------------------------------------------------- */

/* Pages that open on a solid header need the fixed bar's height cleared. */
.main--offset { padding-top: var(--header-h); }

/* Row of buttons under a heading (404, thank-you). */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 2.5rem;
}

/* Editor content on generic pages. */
.entry {
  max-width: 46rem;
  color: rgba(20, 20, 20, .78);
  line-height: 1.75;
}

.entry > * + * { margin-top: 1.25rem; }
.entry h2 { font-size: var(--fs-h2); margin-top: 2.5rem; }
.entry h3 { font-size: var(--fs-h3); margin-top: 2rem; }
.entry ul,
.entry ol { padding-left: 1.25rem; }
.entry ul { list-style: disc; }
.entry ol { list-style: decimal; }
.entry li + li { margin-top: .5rem; }
.entry a { color: var(--c-primary); text-decoration: underline; }
.entry img { border-radius: var(--radius); }
.entry blockquote {
  padding-left: 1.5rem;
  border-left: 2px solid var(--c-primary);
  color: var(--c-muted);
}

/* Archive listing. */
.entry-list { display: grid; gap: 2.5rem; max-width: 46rem; }
.entry-list__item { padding-top: 1.5rem; border-top: 1px solid var(--c-border); }

/* Core pagination. */
.pagination { margin-top: 3rem; display: flex; gap: .5rem; }
.pagination .page-numbers {
  display: grid;
  place-items: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding-inline: .5rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  font-size: .875rem;
}
.pagination .page-numbers.current {
  background: var(--c-fg);
  border-color: var(--c-fg);
  color: #fff;
}