/* ==========================================================================
   Comegame — download.css
   APK download hero, dual-device mockup stage, install guide, spec table.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DOWNLOAD HERO
   -------------------------------------------------------------------------- */

.dl-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2.5rem, 1.6rem + 4vw, 5rem) clamp(3rem, 2rem + 4vw, 5.5rem);
}

.dl-hero__inner {
  position: relative;
  z-index: var(--z-content);
  display: grid;
  gap: clamp(3rem, 2rem + 5vw, 4.5rem);
  align-items: center;
}

/* The .version-card definition-list component lives in main.css (shared with
   the About page "At a glance" panel). */

/* --------------------------------------------------------------------------
   2. DUAL DEVICE STAGE
   -------------------------------------------------------------------------- */

.dl-stage {
  position: relative;
  display: grid;
  place-items: center;
  padding-block: var(--space-6);
}

.dl-stage__inner {
  position: relative;
  width: min(400px, 88vw);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dl-stage__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 130%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--gradient-radial-glow);
  filter: blur(40px);
  pointer-events: none;
  animation: bloomPulse 8s var(--ease-in-out) infinite alternate;
}

/* Back device — angled behind the primary one */
.dl-stage__back {
  position: relative;
  z-index: 1;
  width: 46%;
  margin-right: -16%;
  border-radius: 26px;
  padding: 7px;
  background: linear-gradient(155deg, #2A2C4C 0%, #12122A 45%, #0A0A16 100%);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.07);
  transform: rotate(-8deg) translateY(14px);
  opacity: 0.86;
  animation: dlBack 9s var(--ease-in-out) infinite alternate;
}

.dl-stage__front {
  position: relative;
  z-index: 3;
  width: 58%;
  border-radius: 32px;
  padding: 9px;
  background: linear-gradient(155deg, #3A3C64 0%, #14142A 42%, #0B0B18 100%);
  box-shadow: 0 34px 78px rgba(0, 0, 0, 0.68),
              0 0 0 1px rgba(255, 255, 255, 0.12),
              0 0 60px rgba(46, 107, 255, 0.30);
  animation: dlFront 7s var(--ease-in-out) infinite alternate;
}

.dl-stage__screen {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  background: #05050C;
  aspect-ratio: 1280 / 2685;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.dl-stage__screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.dl-stage__front .dl-stage__screen::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(125deg, rgba(255, 255, 255, 0.14) 0%, transparent 34%, transparent 64%, rgba(123, 47, 247, 0.14) 100%);
}

.dl-stage__notch {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 64px;
  height: 15px;
  border-radius: var(--radius-pill);
  background: #05050C;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

@keyframes dlFront {
  from { transform: translateY(-8px) rotate(1deg); }
  to   { transform: translateY(10px) rotate(-1.5deg); }
}

@keyframes dlBack {
  from { transform: rotate(-8deg) translateY(18px); }
  to   { transform: rotate(-5deg) translateY(2px); }
}

/* Floating install badge */
.dl-stage .float-card--dl { top: 4%; right: -4%; animation: floatB 6s var(--ease-in-out) infinite alternate; }
.dl-stage .float-card--sec { bottom: 8%; left: -6%; animation: floatA 7s var(--ease-in-out) infinite alternate; }

@media (max-width: 479px) {
  .dl-stage .float-card { padding: 0.55rem 0.7rem; }
  .dl-stage .float-card--dl { right: 0; }
  .dl-stage .float-card--sec { left: 0; }
}

/* --------------------------------------------------------------------------
   3. INSTALL GUIDE
   -------------------------------------------------------------------------- */

.install-steps { counter-reset: step; display: grid; gap: var(--space-4); }

.install-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: start;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  counter-increment: step;
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}

.install-step:hover { transform: translateX(4px); border-color: rgba(77, 140, 255, 0.4); }

.install-step__num {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: var(--gradient-primary-soft);
  border: 1px solid rgba(77, 140, 255, 0.3);
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: 800;
  color: var(--color-electric-blue-bright);
}

.install-step__num::before { content: counter(step); }

.install-step h3 { margin-bottom: var(--space-2); font-size: var(--fs-lg); }
.install-step p { margin-bottom: 0; font-size: var(--fs-sm); }
.install-step p + p { margin-top: var(--space-3); }

.install-step__hint {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: var(--space-3);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-xs);
  background: rgba(255, 201, 77, 0.09);
  border: 1px solid rgba(255, 201, 77, 0.24);
  font-size: var(--fs-xs);
  color: var(--color-warning);
}

/* --------------------------------------------------------------------------
   4. REQUIREMENTS
   -------------------------------------------------------------------------- */

.req-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.req-tile {
  padding: var(--space-5) var(--space-4);
  border-radius: var(--radius-lg);
  background: rgba(23, 23, 40, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

.req-tile svg {
  width: 24px;
  height: 24px;
  margin: 0 auto var(--space-3);
  color: var(--color-electric-blue-bright);
}

.req-tile b {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  color: var(--color-text-primary);
}

.req-tile span { font-size: var(--fs-xs); color: var(--color-text-muted); }

/* --------------------------------------------------------------------------
   5. TROUBLESHOOT LIST
   -------------------------------------------------------------------------- */

.trouble-grid { display: grid; gap: var(--space-4); }

@media (min-width: 768px) {
  .install-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .req-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .trouble-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .version-card { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .dl-hero__inner { grid-template-columns: 1.05fr 0.95fr; }
  .dl-stage__inner { width: min(440px, 40vw); }
}

@media (min-width: 1200px) {
  .trouble-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}