/* ==========================================================================
   2J Game — Obsidian Royale
   pages/download.css — APK install guide
   ========================================================================== */

.dl-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2.5rem, 1.5rem + 4vw, 4.5rem);
  background:
    radial-gradient(900px 460px at 82% 0%, rgba(212, 175, 55, 0.14), transparent 65%),
    linear-gradient(180deg, #0B0B0D, #0E0E11 60%, #0B0B0D);
  border-bottom: 1px solid var(--color-border-neutral);
}

.dl-hero__inner {
  display: grid;
  gap: clamp(2.5rem, 1.5rem + 4vw, 4rem);
  align-items: center;
}

.dl-hero__copy {
  max-width: 62ch;
}

/* Stage for the animated device mockup */
.dl-hero .hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  padding-block: var(--space-24);
}

.dl-spec {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: var(--space-24);
  background: var(--color-border-neutral);
  border: 1px solid var(--color-border-neutral);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.dl-spec__cell {
  padding: var(--space-16);
  background: var(--color-surface);
}

.dl-spec__key {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.dl-spec__val {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.dl-note {
  display: flex;
  gap: var(--space-12);
  padding: var(--space-16);
  margin-top: var(--space-24);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: rgba(212, 175, 55, 0.06);
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
}

.dl-note svg {
  flex: none;
  width: 18px;
  height: 18px;
  fill: var(--color-accent);
  margin-top: 2px;
}

/* Platform cards */
.platform-grid {
  display: grid;
  gap: var(--space-16);
}

.platform-card {
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  background: var(--gradient-panel);
  border: 1px solid var(--color-border-neutral);
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.platform-card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-4px);
}

.platform-card__head {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.platform-card__head svg {
  width: 30px;
  height: 30px;
  fill: var(--color-accent-bright);
  flex: none;
}

.platform-card__head h3 {
  font-family: var(--font-body);
  font-size: var(--fs-lg);
}

.platform-card ul {
  display: grid;
  gap: 0.55rem;
  font-size: var(--fs-sm);
}

.platform-card li {
  position: relative;
  padding-left: 1.3rem;
}

.platform-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  transform: rotate(45deg);
}

/* Troubleshooting */
.trouble-grid {
  display: grid;
  gap: var(--space-16);
}

.trouble-card {
  padding: var(--space-20);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border-left: 3px solid var(--color-accent-dim);
  border-block: 1px solid var(--color-border-neutral);
  border-right: 1px solid var(--color-border-neutral);
}

.trouble-card h3 {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  margin-bottom: 0.4rem;
}

.trouble-card p {
  font-size: var(--fs-sm);
}

@media (min-width: 768px) {
  .platform-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .trouble-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dl-spec { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1200px) {
  .dl-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .platform-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}