/* ==========================================================================
   UHBC — Company selector (welcome.html, the site root)
   A light page with a short welcome line, two large logo tiles (UHBC, Bullion) and the
   associated company's logo below. Uses tokens.css and base.css only.
   ========================================================================== */

.selector {
  background: var(--c-paper);
}

.selector__main {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: clamp(2rem, 6vh, 3.5rem);
  min-height: 100svh;
  padding: clamp(2rem, 6vh, 4rem) var(--gutter);
  text-align: center;
}

.selector__head {
  display: grid;
  gap: 0.9rem;
  animation: selector-in 1s var(--ease-expo) both;
}

.selector__title {
  font-family: var(--f-display);
  font-size: clamp(2rem, 1.4rem + 2.4vw, 3.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

/* --- Logo tiles --------------------------------------------------------- */

.selector__tiles {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.75rem);
  width: min(100%, 52rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.selector__tiles > li {
  animation: selector-in 1s var(--ease-expo) 0.1s both;
}

.selector__tiles > li + li {
  animation-delay: 0.2s;
}

.tile {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 1.1rem;
  height: 100%;
  padding: clamp(2rem, 5vw, 3.25rem) clamp(1.25rem, 3vw, 2rem) clamp(1.5rem, 3.5vw, 2.25rem);
  border: 1px solid var(--c-line);
  background: #fff;
  color: var(--c-ink);
  text-decoration: none;
  transition: transform 0.6s var(--ease-expo), box-shadow 0.6s var(--ease-out), border-color 0.4s var(--ease-out);
}

.tile__logo {
  display: grid;
  place-items: center;
  height: clamp(6.5rem, 5rem + 5vw, 9.5rem);
}

.tile__logo picture {
  display: contents;
}

.tile__logo img {
  width: auto;
  max-height: 100%;
  transition: transform 0.8s var(--ease-expo);
}

.tile--uhbc .tile__logo img {
  height: clamp(4.25rem, 3.4rem + 3vw, 6.25rem);
}

.tile--bullion .tile__logo img {
  height: clamp(6.5rem, 5rem + 5vw, 9.5rem);
}

.tile__name {
  max-width: 24ch;
  font-family: var(--f-display);
  font-size: clamp(1.15rem, 1rem + 0.5vw, 1.4rem);
  line-height: 1.25;
}

/* Revealed on hover/focus on pointer devices; always shown on touch screens. */
.tile__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--c-accent-ink);
  transition: opacity 0.4s var(--ease-out), transform 0.6s var(--ease-expo);
}

.tile--bullion .tile__cta {
  color: #9a7a2e;
}

.tile .icon-arrow {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}

.tile:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 4px;
}

@media (hover: hover) and (pointer: fine) {
  .tile__cta {
    opacity: 0;
    transform: translateY(0.4rem);
  }

  .tile:hover,
  .tile:focus-visible {
    transform: translateY(-4px);
    box-shadow: 0 24px 60px -30px rgba(26, 24, 24, 0.35);
  }

  .tile--uhbc:hover,
  .tile--uhbc:focus-visible {
    border-color: var(--c-accent);
  }

  .tile--bullion:hover,
  .tile--bullion:focus-visible {
    border-color: var(--c-gold);
  }

  .tile:hover .tile__logo img,
  .tile:focus-visible .tile__logo img {
    transform: scale(1.05);
  }

  .tile:hover .tile__cta,
  .tile:focus-visible .tile__cta {
    opacity: 1;
    transform: none;
  }
}

/* --- Associated company ------------------------------------------------- */

.selector__foot {
  display: grid;
  justify-items: center;
  gap: 0.75rem;
  animation: selector-in 1s var(--ease-expo) 0.3s both;
}

.selector__bfl {
  width: auto;
  height: clamp(3.5rem, 3rem + 1.5vw, 4.5rem);
}

.selector__bfl-name {
  font-family: var(--f-display);
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.2rem);
  line-height: 1.25;
  color: var(--c-ink);
}

@keyframes selector-in {
  from { opacity: 0; transform: translateY(1rem); }
  to { opacity: 1; transform: none; }
}

@media (min-width: 640px) {
  .selector__tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .selector__head,
  .selector__tiles > li,
  .selector__foot {
    animation: none;
  }
}