/* ==========================================================================
   Paglu Game — pages/download.css
   Install guide: quick-fact rail, vertical install timeline, requirement
   panels and troubleshooting layout.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. QUICK FACT RAIL
   -------------------------------------------------------------------------- */
.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}
.fact {
  display: grid;
  gap: 0.2rem;
  padding: 0.95rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: rgba(8, 8, 11, 0.5);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.fact:hover { border-color: var(--color-border-strong); transform: translateY(-3px); }
.fact__k { font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--color-text-muted); }
.fact__v { font-family: var(--font-num); font-size: 0.9rem; font-weight: 700; color: var(--color-gold-light); line-height: 1.25; }
@media (min-width: 700px) { .facts { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

/* --------------------------------------------------------------------------
   2. INSTALL TIMELINE
   -------------------------------------------------------------------------- */
.timeline { position: relative; display: grid; gap: var(--space-lg); }

/* Vertical gold rail that draws itself in on scroll */
.timeline::before {
  content: '';
  position: absolute;
  left: 21px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--color-gold), rgba(227, 189, 115, 0.08));
  transform-origin: top center;
  transform: scaleY(0);
  transition: transform 1.6s var(--ease-out);
}
.timeline.is-visible::before { transform: scaleY(1); }

.tl-step {
  position: relative;
  display: grid;
  gap: 0.6rem;
  padding-left: 3.75rem;
}
.tl-step__marker {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 43px;
  height: 43px;
  border-radius: 50%;
  border: 1px solid var(--color-border-strong);
  background: rgba(12, 12, 17, 0.9);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  font-family: var(--font-num);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-gold);
  box-shadow: 0 0 22px -10px var(--color-glow-gold);
}
.tl-step h3 { font-size: 1.3rem; padding-top: 0.35rem; }
.tl-step p { font-size: var(--fs-sm); line-height: 1.85; color: var(--color-text-secondary); }
.tl-step__note {
  padding: 0.75rem 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  border-left: 2px solid var(--color-gold);
  background: rgba(18, 18, 24, 0.55);
  font-size: var(--fs-xs);
  line-height: 1.75;
  color: var(--color-text-muted);
}
.tl-step__note strong { color: var(--color-gold-light); font-weight: 500; }

/* Two-column layout: timeline beside the device mockup -------------------- */
.install-layout { display: grid; gap: clamp(2rem, 1.2rem + 3.4vw, 4rem); align-items: start; }
@media (min-width: 1000px) {
  .install-layout { grid-template-columns: 1.12fr 0.88fr; }
  .install-layout__visual { position: sticky; top: 6.5rem; }
}

/* --------------------------------------------------------------------------
   3. REQUIREMENT / PERMISSION PANELS
   -------------------------------------------------------------------------- */
.req-grid { display: grid; gap: var(--space-md); }
@media (min-width: 768px) { .req-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.perm-list { display: grid; gap: 0.75rem; }
.perm {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: rgba(8, 8, 11, 0.42);
}
.perm__icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: linear-gradient(145deg, rgba(140, 16, 41, 0.4), rgba(18, 18, 24, 0.85));
  border: 1px solid var(--color-border);
  color: var(--color-gold);
}
.perm__icon svg { width: 18px; height: 18px; }
.perm strong { display: block; font-size: var(--fs-sm); font-weight: 500; color: var(--color-text-primary); margin-bottom: 0.15rem; }
.perm p { font-size: var(--fs-xs); line-height: 1.7; color: var(--color-text-secondary); }

/* Safety callout ---------------------------------------------------------- */
.callout {
  display: grid;
  gap: 0.75rem;
  padding: clamp(1.25rem, 0.9rem + 1.4vw, 2rem);
  border-radius: var(--radius-md);
  border: 1px solid rgba(194, 37, 72, 0.34);
  background: linear-gradient(140deg, rgba(140, 16, 41, 0.20), rgba(18, 18, 24, 0.6));
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.callout--gold { border-color: var(--color-border-strong); background: linear-gradient(140deg, rgba(227, 189, 115, 0.10), rgba(18, 18, 24, 0.6)); }
.callout__head { display: flex; align-items: center; gap: 0.65rem; }
.callout__head svg { width: 22px; height: 22px; color: var(--color-gold); flex-shrink: 0; }
.callout__head h3 { font-size: 1.2rem; }
.callout p { font-size: var(--fs-sm); line-height: 1.85; color: var(--color-text-secondary); }
.callout ul { display: grid; gap: 0.45rem; }
.callout li {
  position: relative;
  padding-left: 1.3rem;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--color-text-secondary);
}
.callout li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  background: var(--color-gold);
  transform: rotate(45deg);
}

/* --------------------------------------------------------------------------
   4. APP ICON PLATE (download hero)
   -------------------------------------------------------------------------- */
.app-plate {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.2rem 0.9rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  background: rgba(12, 12, 17, 0.68);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: 0 0 30px -18px var(--color-glow-gold);
  width: fit-content;
  max-width: 100%;
}
.app-plate img {
  width: 58px;
  height: 58px;
  border-radius: 13px;
  flex-shrink: 0;
  box-shadow: 0 10px 24px -12px #000;
}
.app-plate__name { font-family: var(--font-display); font-size: 1.35rem; font-weight: 600; line-height: 1.15; color: var(--color-text-primary); }
.app-plate__meta { font-size: var(--fs-xs); color: var(--color-text-muted); letter-spacing: 0.06em; }
.app-plate__stars { display: inline-flex; gap: 2px; color: var(--color-gold); }
.app-plate__stars svg { width: 12px; height: 12px; }