/* =============================================================
   LAYOUT 01 — "Atlas"
   Pricing cards + specification explorer.
   Everything here composes the shared kit; only the Atlas-specific
   composition lives in this file.
   ============================================================= */

.atl {
  --atl-hero-pad: clamp(3rem, 7vw, 5.5rem);
}

/* ---------- Hero ------------------------------------------------ */

.atl-hero {
  position: relative;
  padding-block: var(--atl-hero-pad) clamp(2.5rem, 5vw, 4rem);
  background:
    radial-gradient(1000px 440px at 6% -12%, rgba(231, 201, 89, .14), transparent 62%),
    radial-gradient(820px 400px at 100% -6%, rgba(127, 178, 240, .08), transparent 60%);
  overflow: hidden;
}
.atl-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .022) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 75%);
  pointer-events: none;
}
.atl-hero > * { position: relative; z-index: 1; }

.atl-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, .85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
}
@media (max-width: 900px) { .atl-hero__grid { grid-template-columns: minmax(0, 1fr); align-items: start; } }

.atl-hero__rate {
  border: 1px solid var(--sk-line);
  border-radius: var(--sk-r-lg);
  background: var(--sk-panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 1.25rem 1.4rem;
  box-shadow: var(--sk-shadow);
}
.atl-rateline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--sk-line);
}
.atl-rateline:first-of-type { padding-top: 0; }
.atl-rateline:last-of-type { border-bottom: 0; }
.atl-rateline__n {
  font-family: var(--display);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sk-ink-3);
}
.atl-rateline__v { display: flex; align-items: baseline; gap: .5rem; }
.atl-rateline__v > span {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--sk-ink);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}
.atl-rateline__v small { font-size: .72rem; color: var(--sk-ink-4); }
.atl-hero__note {
  margin: 1rem 0 0;
  font-size: .7rem;
  line-height: 1.5;
  color: var(--sk-ink-4);
  text-align: center;
}

/* ---------- Tier cards ------------------------------------------ */

.atl-tiers {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2.75rem;
  align-items: stretch;
}
@media (max-width: 860px) { .atl-tiers { grid-template-columns: minmax(0, 1fr); } }

.atl-tier { display: flex; flex-direction: column; gap: 0; }
.atl-tier__badge { align-self: flex-start; margin-bottom: 1.1rem; }

.atl-tier__name {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--sk-ink);
  margin: 0;
}
.atl-tier__tag {
  font-size: .92rem;
  color: var(--sk-gold);
  margin: .35rem 0 0;
  font-weight: 500;
}

.atl-tier__rate {
  display: flex;
  align-items: baseline;
  gap: .1rem;
  margin: 1.4rem 0 1.1rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--sk-line);
  font-family: var(--display);
  line-height: 1;
}
.atl-tier__cur { font-size: 1.3rem; color: var(--sk-ink-3); font-weight: 600; align-self: flex-start; margin-top: .35rem; }
.atl-tier__num {
  font-size: clamp(2.6rem, 6vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -.035em;
  color: var(--sk-ink);
  font-variant-numeric: tabular-nums;
}
.atl-tier__unit { font-size: .9rem; color: var(--sk-ink-3); margin-left: .4rem; font-weight: 500; }

.atl-tier__hr { border: 0; border-top: 1px solid var(--sk-line); margin: 1.3rem 0; }
.atl-tier__hl-h {
  font-family: var(--display);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--sk-ink-4);
  margin: 0 0 .9rem;
}
.atl-tier .sk-ticks { margin-bottom: 1.75rem; }
.atl-tier__cta { margin-top: auto; display: grid; gap: .5rem; }

.atl-tiers__foot {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: .75rem;
  align-items: start;
  margin: 2rem auto 0;
  max-width: 760px;
  text-align: center;
  font-size: .85rem;
  line-height: 1.75;
  color: var(--sk-ink-3);
}
.atl-tiers__foot > i { color: var(--sk-info); margin-top: .3rem; }
.atl-tiers__foot strong { color: var(--sk-ink-2); font-weight: 600; }
.atl-tiers__foot .sk-pill { vertical-align: middle; transform: translateY(-1px); }
@media (max-width: 560px) {
  .atl-tiers__foot { grid-template-columns: minmax(0, 1fr); text-align: left; }
  .atl-tiers__foot > i { display: none; }
}

/* ---------- Explorer body --------------------------------------- */

.atl-body {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
  margin-top: 1.5rem;
}
@media (max-width: 1000px) {
  .atl-body { grid-template-columns: minmax(0, 1fr); }
  .atl-rail {
    position: static;
    max-height: none;
    display: flex;
    gap: .4rem;
    overflow-x: auto;
    padding-bottom: .5rem;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .atl-rail::-webkit-scrollbar { display: none; }
  .atl-rail__h { display: none; }
  .atl-rail__a {
    flex: none;
    grid-template-columns: auto auto;
    white-space: nowrap;
    border: 1px solid var(--sk-line);
    border-radius: var(--sk-r-pill);
    padding: .4rem .85rem;
  }
  .atl-rail__a.is-active { border-color: var(--sk-line-gold); }
}

.atl-secs { display: grid; gap: 1.1rem; min-width: 0; }

/* ---------- Section card ---------------------------------------- */

/* The contents rail links here, so the heading has to land below the
   sticky toolbar, not merely below the site header.

   [id] is deliberate: packages-base.css sets a page-wide
   `.sk [id] { scroll-margin-top }` at specificity 0,2,0, which would
   otherwise win over a bare `.atl-sec` (0,1,0) and pull the heading
   back up underneath the toolbar. */
.atl .atl-sec[id] {
  overflow: hidden;
  scroll-margin-top: calc(var(--sk-sticky) + var(--sk-toolbar) + 1.5rem);
}

.atl-sec__head {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
  padding: 1.1rem clamp(1rem, 2.2vw, 1.5rem);
  background: var(--sk-bg-2);
  border-bottom: 1px solid var(--sk-line);
}
.atl-sec__num {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 0;
  border: 1px solid var(--sk-line-gold);
  background: rgba(231, 201, 89, .08);
  color: var(--sk-gold);
  font-family: var(--display);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.atl-sec__head h3 i { color: var(--sk-gold); margin-right: .5rem; font-size: .85em; }
.atl-sec__blurb { font-size: .82rem; line-height: 1.6; color: var(--sk-ink-3); margin: .3rem 0 0; max-width: 68ch; }
.atl-sec__meta {
  font-size: .72rem;
  color: var(--sk-ink-4);
  white-space: nowrap;
  padding-top: .5rem;
  font-variant-numeric: tabular-nums;
}
.atl-sec__meta b { color: var(--sk-diff); font-weight: 600; }

@media (max-width: 720px) {
  .atl-sec__head { grid-template-columns: 36px minmax(0, 1fr); }
  .atl-sec__num { width: 34px; height: 34px; font-size: .7rem; }
  .atl-sec__meta { grid-column: 2; padding-top: 0; }
}

/* Rows inside a section card lose the outer border. */
.atl-sec .sk-spec td:first-of-type,
.atl-sec .sk-spec tbody th[scope='row'] { border-left: 0; }
.atl-sec .sk-spec thead th { position: static; background: transparent; }
.atl-sec .sk-spec__ref { min-width: 3.2rem; }
.atl-sec .sk-spec tr.atl-flash > * { animation: atlFlash 1.4s var(--sk-ease); }
@keyframes atlFlash {
  0%, 100% { background: transparent; }
  25%      { background: rgba(231, 201, 89, .22); }
}
@media (prefers-reduced-motion: reduce) {
  .atl-sec .sk-spec tr.atl-flash > * { animation: none; }
}

/* Section rows keep the table grid at every width. The mobile treatment
   (horizontal scroller, pinned first column) is in
   css/packages/packages-responsive.css — the rule that used to turn each
   row into a card below 900px is deliberately absent. */