/* ============================================================
   APP SHOWCASE SECTION — DiGi Learning App
   ============================================================ */

.app-section {
  position: relative;
  z-index: 1;
  padding: 100px var(--space-xl);
  overflow: hidden;
}

/* Subtle tinted glow behind section */
.app-section::before {
  content: '';
  position: absolute;
  top: -100px; left: -200px;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 80, 220, 0.14) 0%, transparent 70%);
  pointer-events: none;
}
.app-section::after {
  content: '';
  position: absolute;
  bottom: -100px; right: -150px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.10) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Two-column layout ─────────────────────────────────────── */
.app-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}

/* ══════════════════════════════════════════════════════════════
   PHONE MOCKUP (left column)
══════════════════════════════════════════════════════════════ */
.app-mockup-wrap {
  display: flex;
  justify-content: center;
}

.app-mockup {
  position: relative;
  width: 280px;
}

/* Glow halos */
.phone-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.phone-glow-1 {
  width: 320px; height: 320px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 229, 255, 0.18) 0%, transparent 70%);
  animation: glowPulse 4s ease-in-out infinite;
}
.phone-glow-2 {
  width: 420px; height: 420px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 60, 200, 0.12) 0%, transparent 65%);
  animation: glowPulse 4s ease-in-out infinite 1s;
}
@keyframes glowPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  50%       { transform: translate(-50%, -50%) scale(1.08); opacity: 0.7; }
}

/* Phone frame */
.phone-frame {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 9 / 19;
  border-radius: 40px;
  background: linear-gradient(160deg, #0d1f3c, #060d20);
  border: 2px solid rgba(0, 229, 255, 0.40);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08) inset,
    0 30px 80px rgba(0, 0, 0, 0.70),
    0 0 40px rgba(0, 229, 255, 0.15);
  overflow: hidden;
  animation: phoneFloat 6s ease-in-out infinite;
}
@keyframes phoneFloat {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}

/* Notch */
.phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px; height: 20px;
  background: #060d20;
  border-radius: 10px;
  z-index: 2;
  border: 1px solid rgba(0, 229, 255, 0.15);
}

/* Screen area */
.phone-screen {
  position: absolute;
  inset: 8px;
  border-radius: 34px;
  overflow: hidden;
  background: #080f22;
}
.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── App screenshot auto-slider inside phone ────────────── */
.app-screen-slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.app-screen-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s ease;
}

.app-screen-slide.active {
  opacity: 1;
}

.app-screen-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

/* Placeholder when no screenshot added yet */
.phone-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  padding: 20px;
}
.phone-placeholder span { font-size: 3rem; opacity: 0.4; }
.phone-placeholder p    { font-size: 0.75rem; color: var(--white-60); line-height: 1.5; opacity: 0.6; }

/* ── Floating badges around phone ──────────────────────────── */
.app-badge-float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: rgba(5, 15, 40, 0.90);
  border: 1px solid rgba(0, 229, 255, 0.30);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--white-80);
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.50);
  z-index: 2;
}
.app-bf-1 { top: 10%;  right: -30px; animation: floatBadge 5s ease-in-out infinite; }
.app-bf-2 { top: 50%;  left: -36px;  animation: floatBadge 5s ease-in-out infinite 1.5s; }
.app-bf-3 { bottom: 15%; right: -24px; animation: floatBadge 5s ease-in-out infinite 3s; }

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* ══════════════════════════════════════════════════════════════
   APP COPY (right column)
══════════════════════════════════════════════════════════════ */
.app-copy { display: flex; flex-direction: column; gap: 0; }
.app-copy .section-title { margin-bottom: 16px; }
.app-copy .section-sub   { margin-bottom: 32px; }

/* Feature rows */
.app-features-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}
.app-feat-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.app-feat-row:hover {
  border-color: rgba(0, 229, 255, 0.25);
  background: rgba(0, 229, 255, 0.04);
}
.app-feat-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
  margin-top: 2px;
}
.app-feat-row strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--white);
  margin-bottom: 3px;
}
.app-feat-row span {
  font-size: 0.82rem;
  color: var(--white-60);
  line-height: 1.5;
}

/* Store buttons */
.app-download-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.store-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--white);
  min-width: 155px;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.store-btn:hover {
  background: rgba(0, 229, 255, 0.10);
  border-color: rgba(0, 229, 255, 0.40);
  transform: translateY(-2px);
}
.store-btn svg { flex-shrink: 0; color: var(--white-80); }
.store-btn small {
  display: block;
  font-size: 0.68rem;
  color: var(--white-60);
  letter-spacing: 0.05em;
  margin-bottom: 1px;
}
.store-btn strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--white);
}

/* Free note */
.app-free-note {
  font-size: 0.82rem;
  color: var(--cyan);
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .app-inner { grid-template-columns: 1fr; gap: 60px; }
  .app-mockup-wrap { order: 2; }
  .app-copy { order: 1; }
  .app-mockup { width: 220px; }
}

@media (max-width: 768px) {
  .app-section { padding-left: 20px; padding-right: 20px; }
  .app-mockup  { width: 180px; }
  .app-bf-1, .app-bf-2, .app-bf-3 { display: none; } /* hide floating badges on tiny screens */
  .app-download-btns { flex-direction: column; }
  .store-btn { width: 100%; justify-content: center; }
}