/* ============================================================
   TrackAScore landing.css — game-picker landing page (WEB.S1)
   Mobile-first. Tokens only (--ta-*). Reuses .tas-overlay/.tas-card
   from tasGlobal.css for the Join modal. Light mode is automatic
   via brand.css token swaps. Body >=16px. Tap targets >=48px.
   Load order: brand.css -> tasGlobal.css -> landing.css
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body.ta-landing {
  margin: 0;
  background: var(--ta-bg);
  color: var(--ta-fg);
  font-family: var(--ta-font);
  font-size: var(--ta-text-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.ta-container { width: 100%; max-width: 980px; margin: 0 auto; padding: 0 var(--ta-space-4); }

.ta-vh {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0;
}

/* ---------- header ---------- */
.ta-header {
  position: sticky; top: 0; z-index: var(--ta-z-pill);
  /* solid (no backdrop-filter): a sticky blurred header re-blurs every scroll frame. */
  background: var(--ta-bg);
  border-bottom: 1px solid var(--ta-border);
}
.ta-header__inner {
  display: flex; align-items: center; justify-content: space-between; gap: var(--ta-space-3);
  min-height: 56px; padding-top: var(--ta-space-2); padding-bottom: var(--ta-space-2);
}
.ta-header .ta-wordmark { font-size: 1.25rem; }

/* ---------- wordmark ---------- */
.ta-wordmark {
  display: inline-flex; align-items: baseline; gap: 0;
  font-weight: var(--ta-weight-black); letter-spacing: -0.02em; line-height: 1;
  color: var(--ta-fg); text-decoration: none; white-space: nowrap;
}
.ta-wordmark__a { color: var(--ta-color-primary); }
.ta-wordmark__dot {
  display: inline-block; width: 0.34em; height: 0.34em; margin-left: 0.06em;
  border-radius: 50%; background: var(--ta-color-accent); align-self: flex-end; margin-bottom: 0.12em;
}

/* ---------- hero ---------- */
.ta-hero { text-align: center; padding: var(--ta-space-7) 0 var(--ta-space-6); }
.ta-hero .ta-wordmark { font-size: clamp(2.4rem, 11vw, 4rem); }
.ta-hero__tagline {
  margin: var(--ta-space-4) auto var(--ta-space-5); max-width: 22ch;
  font-size: clamp(1.0625rem, 4.5vw, 1.375rem); font-weight: var(--ta-weight-reg); color: var(--ta-muted);
}
.ta-cta {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--ta-space-2);
  min-height: 56px; min-width: 240px; padding: 0 var(--ta-space-6);
  border: 0; border-radius: var(--ta-radius-pill);
  background: var(--ta-color-primary); color: var(--ta-on-primary);
  font: var(--ta-weight-bold) 1.125rem/1 var(--ta-font); cursor: pointer; box-shadow: var(--ta-shadow-1);
  transition: background var(--ta-dur-fast) var(--ta-ease-out), transform var(--ta-dur-fast) var(--ta-ease-out);
}
.ta-cta:hover  { background: var(--ta-color-primary-hover); }
.ta-cta:active { background: var(--ta-color-primary-active); transform: scale(.98); }
.ta-cta__icon  { font-size: 1.25rem; line-height: 1; }

/* ---------- search ---------- */
.ta-search { position: relative; margin: 0 auto var(--ta-space-5); max-width: 560px; }
.ta-search__icon { position: absolute; left: var(--ta-space-4); top: 50%; transform: translateY(-50%); font-size: 1.125rem; line-height: 1; pointer-events: none; opacity: .8; }
.ta-search__input {
  width: 100%; min-height: 52px; padding: 0 var(--ta-space-7) 0 calc(var(--ta-space-4) + 1.75rem);
  border: 1px solid var(--ta-border); border-radius: var(--ta-radius-pill);
  background: var(--ta-surface); color: var(--ta-fg); font: var(--ta-weight-reg) var(--ta-text-body)/1 var(--ta-font);
  transition: border-color var(--ta-dur-fast), box-shadow var(--ta-dur-fast);
}
.ta-search__input::placeholder { color: var(--ta-muted); }
.ta-search__input:focus-visible { outline: none; border-color: var(--ta-color-primary); box-shadow: var(--ta-ring); }
.ta-search__clear {
  position: absolute; right: var(--ta-space-2); top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; display: none; align-items: center; justify-content: center;
  border: 0; border-radius: 50%; background: var(--ta-surface-2); color: var(--ta-muted);
  font-size: 1.125rem; line-height: 1; cursor: pointer;
}
.ta-search.has-value .ta-search__clear { display: inline-flex; }
.ta-search__clear:hover  { color: var(--ta-fg); }
.ta-search__clear:active { background: var(--ta-border); }

/* ---------- category section ---------- */
.ta-section { margin: 0 0 var(--ta-space-6); }
.ta-section.is-empty-hidden { display: none; }
.ta-section__head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--ta-space-3); padding: 0 var(--ta-space-4); margin-bottom: var(--ta-space-3); }
.ta-section__heading { display: flex; flex-direction: column; }
.ta-section__title { margin: 0; font: var(--ta-weight-bold) 1.25rem/1.2 var(--ta-font); color: var(--ta-fg); }
.ta-section__subtitle { margin: 2px 0 0; font-size: var(--ta-text-label); color: var(--ta-muted); }

.ta-rail {
  display: flex; gap: var(--ta-space-3); padding: var(--ta-space-1) var(--ta-space-4) var(--ta-space-2);
  overflow-x: auto; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.ta-rail::-webkit-scrollbar { display: none; }
.ta-rail > * { scroll-snap-align: start; }

/* ---------- game card ---------- */
.ta-card {
  position: relative; display: flex; flex-direction: column; flex: 0 0 200px; min-height: 132px;
  padding: var(--ta-space-4); border: 1px solid var(--ta-border); border-radius: var(--ta-radius-lg);
  background: var(--ta-surface); color: var(--ta-fg); text-decoration: none; cursor: pointer;
  transition: border-color var(--ta-dur-fast) var(--ta-ease-out), transform var(--ta-dur-fast) var(--ta-ease-out), box-shadow var(--ta-dur-fast) var(--ta-ease-out);
}
.ta-card:hover { border-color: var(--ta-color-primary); box-shadow: var(--ta-shadow-1); }
.ta-card:active { transform: scale(.985); }
.ta-card__icon { font-size: 2rem; line-height: 1; margin-bottom: var(--ta-space-2); position: relative; }
.ta-card__name { font: var(--ta-weight-bold) 1.0625rem/1.2 var(--ta-font); margin: 0 0 2px; position: relative; }
.ta-card__desc { font-size: 0.9375rem; color: var(--ta-muted); margin: 0; flex: 1; position: relative; }
/* Stretched primary link: whole card -> board. Sits under interactive children. */
.ta-card__main { position: absolute; inset: 0; z-index: 0; border-radius: inherit; }
.ta-card__main::after { content: ""; position: absolute; inset: 0; }
.ta-card__cta { position: relative; z-index: 1; align-self: flex-start; margin-top: var(--ta-space-3); padding: var(--ta-space-1) 0; min-height: 28px; display: inline-flex; align-items: center; font: var(--ta-weight-bold) var(--ta-text-label)/1 var(--ta-font); color: var(--ta-color-primary); letter-spacing: .01em; text-decoration: none; }
.ta-card__cta:hover { text-decoration: underline; }

.ta-card.is-soon { cursor: default; pointer-events: none; opacity: .62; }
.ta-card.is-soon .ta-card__cta { display: none; }
.ta-badge-soon { position: absolute; top: var(--ta-space-3); right: var(--ta-space-3); padding: 2px var(--ta-space-2); border-radius: var(--ta-radius-pill); background: var(--ta-surface-2); color: var(--ta-muted); font: var(--ta-weight-bold) 0.6875rem/1.4 var(--ta-font); text-transform: uppercase; letter-spacing: .06em; }
.ta-badge-live { position: absolute; top: var(--ta-space-3); right: var(--ta-space-3); display: inline-flex; align-items: center; gap: 5px; padding: 2px var(--ta-space-2); border-radius: var(--ta-radius-pill); background: var(--ta-color-accent-soft); color: var(--ta-color-accent); font: var(--ta-weight-bold) 0.6875rem/1.4 var(--ta-font); text-transform: uppercase; letter-spacing: .06em; }
.ta-badge-live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ta-color-accent); }

/* ---------- recently-played ---------- */
.ta-recent { margin: 0 0 var(--ta-space-6); }
.ta-recent[hidden] { display: none; }
.ta-recent .ta-rail { padding-top: 0; }
.ta-card--small { flex: 0 0 156px; min-height: 72px; flex-direction: row; align-items: center; gap: var(--ta-space-3); padding: var(--ta-space-3); }
.ta-card--small .ta-card__icon { font-size: 1.75rem; margin: 0; }
.ta-card--small .ta-card__body { display: flex; flex-direction: column; min-width: 0; }
.ta-card--small .ta-card__name { font-size: 0.9375rem; margin: 0; }
.ta-card--small .ta-card__cta { margin-top: 2px; font-size: 0.6875rem; min-height: 0; }

/* ---------- 21+ toggle ---------- */
.ta-gate { display: flex; align-items: center; gap: var(--ta-space-3); margin: 0 var(--ta-space-4) var(--ta-space-5); padding: var(--ta-space-3) var(--ta-space-4); border: 1px solid var(--ta-border); border-radius: var(--ta-radius-md); background: var(--ta-surface); }
.ta-gate__label { flex: 1; display: flex; flex-direction: column; }
.ta-gate__title { font-weight: var(--ta-weight-bold); }
.ta-gate__note  { font-size: var(--ta-text-label); color: var(--ta-muted); margin-top: 2px; }
.ta-switch { position: relative; flex: 0 0 auto; width: 56px; height: 32px; display: inline-block; }
.ta-switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.ta-switch__track { position: absolute; inset: 0; border-radius: var(--ta-radius-pill); background: var(--ta-surface-2); border: 1px solid var(--ta-border); transition: background var(--ta-dur-base) var(--ta-ease-out); pointer-events: none; }
.ta-switch__thumb { position: absolute; top: 3px; left: 3px; width: 24px; height: 24px; border-radius: 50%; background: var(--ta-fg); transition: transform var(--ta-dur-base) var(--ta-ease-out); pointer-events: none; }
.ta-switch input:checked ~ .ta-switch__track { background: var(--ta-color-primary); border-color: var(--ta-color-primary); }
.ta-switch input:checked ~ .ta-switch__thumb { transform: translateX(24px); background: var(--ta-on-primary); }
.ta-switch input:focus-visible ~ .ta-switch__track { box-shadow: var(--ta-ring); }

/* ---------- empty / coming-soon ---------- */
.ta-empty { margin: 0 var(--ta-space-4); padding: var(--ta-space-5); border: 1px dashed var(--ta-border); border-radius: var(--ta-radius-md); text-align: center; color: var(--ta-muted); font-size: 0.9375rem; }

/* ---------- Most popular (top-3, always shown) ---------- */
.ta-pop[hidden] { display: none; }

/* ---------- category accordion ---------- */
.ta-acc { border-top: 1px solid var(--ta-border); }
.ta-acc:last-of-type { border-bottom: 1px solid var(--ta-border); }
.ta-acc[hidden] { display: none; }
.ta-acc__head { display: flex; align-items: center; gap: var(--ta-space-3); width: 100%; min-height: 56px; padding: var(--ta-space-3) var(--ta-space-4); background: none; border: 0; color: var(--ta-fg); cursor: pointer; text-align: left; font: var(--ta-weight-bold) 1.125rem/1.2 var(--ta-font); }
.ta-acc__head:active { background: var(--ta-surface); }
.ta-acc__title { flex: 1; }
.ta-acc__meta { color: var(--ta-muted); font-size: var(--ta-text-label); font-weight: var(--ta-weight-bold); }
.ta-acc__chev { color: var(--ta-muted); transition: transform var(--ta-dur-base) var(--ta-ease-out); display: inline-block; }
.ta-acc.is-open .ta-acc__chev { transform: rotate(90deg); }
.ta-acc__body { padding-bottom: var(--ta-space-3); }
.ta-acc__body[hidden] { display: none; }

/* ---------- 21+ date-of-birth gate ---------- */
.ta-dob { margin: 0 var(--ta-space-4) var(--ta-space-2); padding: var(--ta-space-4); border: 1px solid var(--ta-border); border-radius: var(--ta-radius-md); background: var(--ta-surface); }
.ta-dob__lead { margin: 0 0 var(--ta-space-3); color: var(--ta-fg); }
.ta-dob__row { display: flex; gap: var(--ta-space-2); align-items: center; flex-wrap: wrap; }
.ta-dob__in { width: 66px; min-height: 48px; text-align: center; background: var(--ta-bg-deep); border: 1px solid var(--ta-border); color: var(--ta-fg); border-radius: var(--ta-radius-sm); font: var(--ta-weight-bold) 1.05rem/1 var(--ta-font-mono); padding: 0 6px; }
.ta-dob__in.ta-dob__yr { width: 92px; }
.ta-dob__btn { min-height: 48px; padding: 0 var(--ta-space-5); border: 0; border-radius: var(--ta-radius-md); background: var(--ta-color-primary); color: var(--ta-on-primary); font: var(--ta-weight-bold) 1rem/1 var(--ta-font); cursor: pointer; }
.ta-dob__err { margin: var(--ta-space-3) 0 0; color: var(--ta-color-danger); font-size: 0.875rem; }
.ta-dob__err[hidden] { display: none; }

/* ---------- skeleton ---------- */
.ta-skel { flex: 0 0 200px; min-height: 132px; border-radius: var(--ta-radius-lg); border: 1px solid var(--ta-border); background: var(--ta-surface); position: relative; overflow: hidden; }
.ta-skel::after { content: ""; position: absolute; inset: 0; transform: translateX(-100%); background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--ta-fg) 8%, transparent), transparent); animation: ta-shimmer 1.4s var(--ta-ease-in-out) infinite; }

/* ---------- Join modal (extends .tas-overlay/.tas-card) ---------- */
.ta-join { text-align: center; }
.ta-join__title { margin: 0 0 var(--ta-space-2); font-size: 1.375rem; font-weight: var(--ta-weight-bold); }
.ta-join__sub   { margin: 0 0 var(--ta-space-5); color: var(--ta-muted); font-size: 0.9375rem; }
.ta-field { text-align: left; margin-bottom: var(--ta-space-4); }
.ta-field__label { display: block; margin-bottom: var(--ta-space-2); font: var(--ta-weight-bold) var(--ta-text-label)/1.2 var(--ta-font); color: var(--ta-muted); text-transform: uppercase; letter-spacing: .06em; }
.ta-code-input { width: 100%; min-height: 56px; padding: 0 var(--ta-space-4); border: 1px solid var(--ta-border); border-radius: var(--ta-radius-md); background: var(--ta-surface-2); color: var(--ta-fg); font: var(--ta-weight-bold) clamp(1.5rem, 7vw, 2rem)/1 var(--ta-font-mono); letter-spacing: .14em; text-align: center; text-transform: uppercase; }
.ta-code-input::placeholder { color: var(--ta-muted); letter-spacing: .14em; }
.ta-code-input:focus-visible { outline: none; border-color: var(--ta-color-primary); box-shadow: var(--ta-ring); }
.ta-code-input.is-error { border-color: var(--ta-color-danger); }
.ta-join__error { margin: var(--ta-space-2) 0 var(--ta-space-3); min-height: 1.25rem; color: var(--ta-color-danger); font-size: 0.875rem; text-align: left; }
.ta-join__error:empty { min-height: 0; margin: 0; }
.ta-join__btn { display: flex; align-items: center; justify-content: center; gap: var(--ta-space-2); width: 100%; min-height: 52px; border: 0; border-radius: var(--ta-radius-md); font: var(--ta-weight-bold) 1.0625rem/1 var(--ta-font); cursor: pointer; margin: var(--ta-space-2) 0; }
.ta-join__btn--primary  { background: var(--ta-color-primary); color: var(--ta-on-primary); }
.ta-join__btn--primary:hover  { background: var(--ta-color-primary-hover); }
.ta-join__btn--primary:active { background: var(--ta-color-primary-active); }
.ta-join__btn--primary:disabled { opacity: .5; pointer-events: none; }
.ta-join__btn--secondary { background: var(--ta-surface-2); color: var(--ta-fg); border: 1px solid var(--ta-border); }
.ta-join__btn--secondary:active { background: var(--ta-border); }
.ta-join__divider { display: flex; align-items: center; gap: var(--ta-space-3); margin: var(--ta-space-4) 0; color: var(--ta-muted); font-size: var(--ta-text-label); text-transform: uppercase; letter-spacing: .08em; }
.ta-join__divider::before, .ta-join__divider::after { content: ""; flex: 1; height: 1px; background: var(--ta-border); }
.ta-scan { margin-top: var(--ta-space-4); }
.ta-scan[hidden] { display: none; }
.ta-scan__viewport { position: relative; width: 100%; aspect-ratio: 1 / 1; max-height: 280px; border-radius: var(--ta-radius-md); overflow: hidden; background: var(--ta-bg-deep); border: 1px solid var(--ta-border); }
.ta-scan__video { width: 100%; height: 100%; object-fit: cover; display: block; }
.ta-scan__reticle { position: absolute; inset: 18%; border: 3px solid var(--ta-color-accent); border-radius: var(--ta-radius-md); pointer-events: none; }
.ta-scan__hint { margin: var(--ta-space-3) 0 0; font-size: 0.875rem; color: var(--ta-muted); }
.ta-join__manual-note { margin: var(--ta-space-3) 0 0; font-size: 0.875rem; color: var(--ta-muted); }
.ta-join__manual-note[hidden] { display: none; }

/* ---------- footer ---------- */
.ta-footer { border-top: 1px solid var(--ta-border); margin-top: var(--ta-space-6); padding: var(--ta-space-6) 0 var(--ta-space-7); text-align: center; }
.ta-footer__tagline { color: var(--ta-muted); font-size: 0.875rem; margin: 0 0 var(--ta-space-3); }
.ta-footer__links { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: var(--ta-space-2) var(--ta-space-3); margin-bottom: var(--ta-space-3); }
.ta-footer__links a { color: var(--ta-fg); text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; padding: 0 var(--ta-space-1); }
.ta-footer__links a:hover { color: var(--ta-color-primary); text-decoration: underline; }
.ta-footer__sep { color: var(--ta-muted); }
.ta-footer__version { font-family: var(--ta-font-mono); font-size: 0.8125rem; color: var(--ta-muted); }

/* ---------- tablet+ : rails -> wrapping grids ---------- */
@media (min-width: 720px) {
  .ta-rail { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--ta-space-4); overflow-x: visible; scroll-snap-type: none; padding-left: var(--ta-space-4); padding-right: var(--ta-space-4); }
  .ta-card, .ta-skel { flex: initial; width: auto; }
  .ta-recent .ta-rail { grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); }
  .ta-card--small { width: auto; }
}

@keyframes ta-shimmer { to { transform: translateX(100%); } }

@media (prefers-reduced-motion: reduce) {
  .ta-skel::after { display: none; }
  .ta-badge-live::before { animation: none; }
  .ta-cta, .ta-card, .ta-switch__track, .ta-switch__thumb, .ta-search__input, .ta-code-input { transition: none; }
}