/* Shared base for both concept directions. Token-driven; each direction layers its own look. */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font-family-sans);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "kern", "liga";
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
a { color: var(--c-link); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--c-link-hover); }
:focus-visible { outline: 3px solid var(--c-focus); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: 1rem; top: -4rem; z-index: 100; padding: .75rem 1rem; background: var(--c-action-bg); color: var(--c-action-text); border-radius: var(--radius-sm); font-weight: 600; }
.skip:focus { top: 1rem; }
.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; }
.wrap { width: 100%; max-width: calc(var(--layout-max) + 2 * var(--space-gutter)); margin-inline: auto; padding-inline: var(--space-gutter); }
.tnum { font-variant-numeric: tabular-nums; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 48px; padding: .75rem 1.25rem; border-radius: var(--radius-sm);
  font: 600 1rem/1.2 var(--font-family-sans); letter-spacing: 0; text-decoration: none; white-space: nowrap;
  border: 1.5px solid transparent;
  transition: background-color var(--motion-duration-base) var(--motion-ease-standard), color var(--motion-duration-base) var(--motion-ease-standard), border-color var(--motion-duration-base) var(--motion-ease-standard), transform var(--motion-duration-fast) var(--motion-ease-standard);
}
.btn--primary { background: var(--c-action-bg); color: var(--c-action-text); }
.btn--primary:hover { background: var(--c-action-bg-hover); color: var(--c-action-text); }
.btn--secondary { border-color: var(--c-action-secondary-border); color: var(--c-action-secondary-text); background: transparent; }
.btn--secondary:hover { background: var(--c-neutral-bg); color: var(--c-action-secondary-text); }
.btn--sm { min-height: 40px; padding: .5rem 1rem; font-size: .9375rem; }
.btn:active { transform: translateY(1px); }
.arrow::after { content: "\2192"; display: inline-block; margin-left: .35em; transition: transform var(--motion-duration-base) var(--motion-ease-standard); }
a:hover .arrow::after, a.arrow:hover::after { transform: translateX(3px); }

/* Maturity and status chips (visible text, never colour alone) */
.chip { display: inline-flex; align-items: center; gap: .4em; padding: .2rem .6rem; border-radius: var(--radius-pill); font-size: var(--text-caption); font-weight: 600; line-height: 1.4; white-space: nowrap; }
.chip::before { content: ""; width: .5em; height: .5em; border-radius: 50%; background: currentColor; }
.chip--now { background: var(--c-success-bg); color: var(--c-success-text); }
.chip--early { background: var(--c-info-bg); color: var(--c-link); }
.chip--dev { background: var(--c-warning-bg); color: var(--c-warning-text); }
.chip--planned { background: var(--c-neutral-bg); color: var(--c-text-muted); }
.chip--planned::before { background: transparent; border: 1.5px solid currentColor; }

/* Labelled photo placeholder */
.photo-ph {
  position: relative; display: grid; place-items: end start; min-height: 240px; padding: 1rem;
  border-radius: var(--radius-lg); overflow: hidden; color: var(--c-text-muted);
  background:
    repeating-linear-gradient(-30deg, transparent 0 14px, rgb(134 146 156 / .12) 14px 15px),
    var(--c-surface-sunken);
  border: 1px dashed var(--c-border-strong);
  font-size: var(--text-caption); line-height: 1.4;
}
.photo-ph strong { display: block; color: var(--c-text); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; font-size: var(--text-overline); margin-bottom: .25rem; }

/* Concept banner */
.concept-note { font-size: var(--text-caption); text-align: center; padding: .5rem var(--space-gutter); background: var(--color-amber-100); color: var(--color-amber-900); }
.concept-note a { color: inherit; }

/* Mobile menu without JS */
.menu { position: relative; }
.menu > summary { list-style: none; cursor: pointer; }
.menu > summary::-webkit-details-marker { display: none; }