/* ============================================================================
   Gessa Arcade — components. Everything styles from tokens.css.
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--surface-page);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
.ic { display: block; flex: none; }
::selection { background: var(--brand-soft); }

/* shared content gutter */
.rail, .main, .foot { width: 100%; max-width: var(--page-max); margin-inline: auto; padding-inline: var(--page-pad); }

/* ---------------- top bar ---------------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: var(--space-5);
  height: var(--topbar-h); padding-inline: var(--page-pad);
  background: color-mix(in srgb, var(--surface-page) 82%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}
.brand { display: inline-flex; align-items: center; gap: var(--space-3); flex: none; }
.brand__mark { color: var(--brand); display: grid; place-items: center; }
.brand__name { font-weight: var(--weight-extra); font-size: var(--text-lg); letter-spacing: -0.02em; }
.brand__tag {
  font-weight: var(--weight-bold); font-size: var(--text-sm); letter-spacing: 0.02em;
  color: var(--brand); background: var(--brand-soft); padding: 3px 9px; border-radius: var(--radius-full);
}
.search {
  display: flex; align-items: center; gap: var(--space-3); flex: 1 1 auto; max-width: 560px;
  height: var(--control-height-md); padding-inline: var(--space-4);
  background: var(--surface-2); border: 1px solid transparent; border-radius: var(--radius-full);
  color: var(--text-tertiary); transition: border-color var(--duration-fast), background var(--duration-fast), box-shadow var(--duration-fast);
}
.search:focus-within { background: var(--surface-0); border-color: var(--brand-ring); box-shadow: 0 0 0 4px var(--brand-soft); }
.search input { flex: 1; border: 0; outline: 0; background: transparent; color: var(--text-primary); font-size: var(--text-md); }
.search input::placeholder { color: var(--text-tertiary); }
.cta {
  flex: none; display: inline-flex; align-items: center; gap: var(--space-3);
  height: var(--control-height-md); padding-inline: var(--space-5);
  background: var(--brand); color: var(--text-on-accent); font-weight: var(--weight-bold); font-size: var(--text-base);
  border-radius: var(--radius-full); box-shadow: 0 8px 20px -10px var(--brand);
  transition: transform var(--duration-fast) var(--ease-out), background var(--duration-fast), box-shadow var(--duration-fast);
}
.cta:hover { background: var(--brand-strong); transform: translateY(-1px); box-shadow: 0 12px 26px -10px var(--brand); }
.cta:active { transform: translateY(0); }

/* ---------------- icon + label nav rail ---------------- */
.rail { display: flex; gap: var(--space-3); padding-top: var(--space-6); padding-bottom: var(--space-2); flex-wrap: wrap; }
.rail__item {
  display: inline-flex; align-items: center; gap: var(--space-3);
  height: var(--control-height-md); padding-inline: var(--space-4) var(--space-5);
  border: 1px solid var(--border-subtle); background: var(--surface-0); color: var(--text-secondary);
  border-radius: var(--radius-full); font-weight: var(--weight-semibold); font-size: var(--text-base);
  transition: color var(--duration-fast), background var(--duration-fast), border-color var(--duration-fast), transform var(--duration-fast) var(--ease-out);
}
.rail__item:hover { color: var(--text-primary); border-color: var(--border-default); transform: translateY(-1px); }
.rail__icon { color: var(--text-tertiary); display: grid; place-items: center; transition: color var(--duration-fast); }
.rail__item:hover .rail__icon { color: var(--text-secondary); }
.rail__item.is-active { background: var(--brand-soft); color: var(--brand-strong); border-color: transparent; box-shadow: inset 0 0 0 1px var(--brand-ring); }
.rail__item.is-active .rail__icon { color: var(--brand); }

/* ---------------- genre chips ---------------- */
.chips { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-6); }
.chip {
  height: var(--control-height-sm); padding-inline: var(--space-5);
  border: 1px solid var(--border-default); background: var(--surface-0); color: var(--text-secondary);
  border-radius: var(--radius-full); font-weight: var(--weight-semibold); font-size: var(--text-sm);
  transition: all var(--duration-fast);
}
.chip:hover { color: var(--text-primary); border-color: var(--border-strong); }
.chip.is-active { background: var(--text-primary); color: var(--surface-0); border-color: var(--text-primary); }

/* ---------------- main ---------------- */
.main { padding-top: var(--space-6); padding-bottom: var(--space-8); display: flex; flex-direction: column; gap: var(--space-8); }
.grid__heading, .row__title { font-size: var(--text-xl); font-weight: var(--weight-bold); letter-spacing: -0.02em; margin: 0; }
.grid__heading { margin-bottom: var(--space-5); }

/* shelves */
.row { display: flex; flex-direction: column; gap: var(--space-5); }
.row__head { display: flex; align-items: baseline; justify-content: space-between; }
.row__scroll {
  display: flex; gap: var(--space-5); overflow-x: auto; scroll-snap-type: x proximity;
  padding-bottom: var(--space-3); margin-inline: calc(-1 * var(--space-2)); padding-inline: var(--space-2);
  scrollbar-width: none;
}
.row__scroll::-webkit-scrollbar { display: none; }
.row__scroll .tile { flex: 0 0 220px; scroll-snap-align: start; }

/* grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: var(--space-6) var(--space-5); }

/* ---------------- game tile ---------------- */
.tile { display: flex; flex-direction: column; gap: var(--space-4); }
.tile__thumb {
  position: relative; aspect-ratio: 16 / 11; border-radius: var(--radius-lg); overflow: hidden;
  background: linear-gradient(152deg, var(--hue), color-mix(in oklab, var(--hue) 50%, #0c0c16));
  box-shadow: var(--shadow-1);
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}
.tile__glow { position: absolute; inset: 0; background: radial-gradient(80% 60% at 28% 12%, rgba(255,255,255,0.4), transparent 60%); pointer-events: none; }
.tile__art {
  position: absolute; inset: 0; display: grid; place-items: center; padding: var(--space-5);
  text-align: center; color: #fff; font-weight: var(--weight-extra); letter-spacing: -0.02em;
  font-size: clamp(17px, 2vw, 22px); line-height: 1.05;
  text-shadow: 0 2px 14px rgba(0,0,0,0.28);
  transition: transform var(--duration-base) var(--ease-out);
}
.tile__chip {
  position: absolute; top: var(--space-3); left: var(--space-3); z-index: 2;
  font-size: 10.5px; font-weight: var(--weight-bold); letter-spacing: 0.02em; color: #fff;
  background: rgba(8, 10, 18, 0.34); padding: 3px 8px; border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}
.tile__badge {
  position: absolute; top: var(--space-3); right: var(--space-3); z-index: 2;
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 10.5px; font-weight: var(--weight-extra); padding: 3px 8px; border-radius: var(--radius-full); color: #fff;
}
.tile__badge--hot { background: var(--accent); }
.tile__badge--new { background: var(--brand); }
.tile__play {
  position: absolute; inset: 0; margin: auto; width: 52px; height: 52px; z-index: 2;
  display: grid; place-items: center; color: var(--text-primary);
  background: rgba(255,255,255,0.94); border-radius: var(--radius-full); padding-left: 3px;
  box-shadow: var(--shadow-pop); opacity: 0; transform: scale(0.7);
  transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-spring);
}
.tile:hover .tile__thumb { transform: translateY(-4px); box-shadow: var(--shadow-3); }
.tile:hover .tile__art { transform: scale(1.05); }
.tile:hover .tile__play { opacity: 1; transform: scale(1); }
.tile:focus-visible { outline: none; }
.tile:focus-visible .tile__thumb { box-shadow: 0 0 0 3px var(--brand-ring), var(--shadow-2); }

.tile__meta { display: flex; flex-direction: column; gap: 2px; padding-inline: 2px; }
.tile__title { font-weight: var(--weight-bold); font-size: var(--text-md); letter-spacing: -0.01em; color: var(--text-primary); }
.tile__sub { display: inline-flex; align-items: center; gap: 5px; font-size: var(--text-sm); color: var(--text-tertiary); }
.tile__sub .ic { opacity: 0.7; }

.empty { color: var(--text-tertiary); font-size: var(--text-md); padding: var(--space-7) 0; }

/* ---------------- footer ---------------- */
.foot {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); flex-wrap: wrap;
  padding-top: var(--space-7); padding-bottom: var(--space-8); margin-top: var(--space-4);
  border-top: 1px solid var(--border-subtle); color: var(--text-tertiary); font-size: var(--text-base);
}
.foot span { display: inline-flex; align-items: center; gap: var(--space-3); }
.foot span .ic { color: var(--brand); }
.foot a { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--brand-strong); font-weight: var(--weight-semibold); }
.foot a:hover { text-decoration: underline; }

/* ---------------- responsive ---------------- */
@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; height: auto; padding-block: var(--space-3); gap: var(--space-3); }
  .search { order: 3; max-width: none; flex-basis: 100%; }
  .cta span { display: none; }
  .cta { padding-inline: var(--space-4); }
  .row__scroll .tile { flex-basis: 168px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }