/* ═══════════════════════════════════════════
   IPTV Smarters Pro APK — Page Styles
   Installation Guide · Download Cards · Tabs
   ═══════════════════════════════════════════ */

/* ── Hero Section ── */
.apk-hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: 
      radial-gradient(1200px 600px at 18% 8%, rgba(24,199,245,0.16), transparent 58%),
      radial-gradient(900px 700px at 85% 12%, rgba(110,63,245,0.12), transparent 55%),
      radial-gradient(900px 560px at 50% 108%, rgba(45,107,255,0.08), transparent 60%),
      linear-gradient(180deg,#FFFFFF 0%,#EFF4FF 100%);
  color: #0A1230;
  padding-top: 100px;
}

.apk-hero::before {
  content: '';
  position: absolute;
  top: -120px;
  left: -80px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(24,199,245,0.20), transparent 65%);
  filter: blur(30px);
  animation: drift1 14s ease-in-out infinite;
  pointer-events: none;
}

.apk-hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -100px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(110,63,245,0.14), transparent 65%);
  filter: blur(30px);
  animation: drift2 17s ease-in-out infinite;
  pointer-events: none;
}

.apk-hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.hero-content h1 {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  color: #0A1230;
}

.hero-content .hero-subtitle {
  font-size: var(--font-size-lg);
  color: #4A5578;
  max-width: 600px;
  margin-bottom: var(--space-xl);
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: #94A3B8;
}

.trust-badge svg {
  width: 18px;
  height: 18px;
  color: var(--accent-green);
}

/* ── Download Section ── */
.download-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-lg);
}

.download-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-xl);
  padding: var(--space-xl);
  text-align: center;
  position: relative;
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
  transition: height var(--transition-base);
}

.download-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.download-card:hover::before {
  height: 4px;
}

/* Platform accent colors */
.download-card.platform-android::before {
  background: linear-gradient(90deg, #3DDC84, #00C853);
}
.download-card.platform-android .platform-icon-wrap {
  background: linear-gradient(135deg, rgba(61, 220, 132, 0.15), rgba(0, 200, 83, 0.08));
  border-color: rgba(61, 220, 132, 0.25);
}
.download-card.platform-android .download-btn {
  background: linear-gradient(135deg, #3DDC84, #00C853);
}

.download-card.platform-ios::before {
  background: linear-gradient(90deg, #007AFF, #5AC8FA);
}
.download-card.platform-ios .platform-icon-wrap {
  background: linear-gradient(135deg, rgba(0, 122, 255, 0.15), rgba(90, 200, 250, 0.08));
  border-color: rgba(0, 122, 255, 0.25);
}
.download-card.platform-ios .download-btn {
  background: linear-gradient(135deg, #007AFF, #5AC8FA);
}

.download-card.platform-samsung::before {
  background: linear-gradient(90deg, #1428A0, #4285F4);
}
.download-card.platform-samsung .platform-icon-wrap {
  background: linear-gradient(135deg, rgba(20, 40, 160, 0.15), rgba(66, 133, 244, 0.08));
  border-color: rgba(20, 40, 160, 0.25);
}
.download-card.platform-samsung .download-btn {
  background: linear-gradient(135deg, #1428A0, #4285F4);
}

.download-card.platform-firestick::before {
  background: linear-gradient(90deg, #FF9900, #FF6600);
}
.download-card.platform-firestick .platform-icon-wrap {
  background: linear-gradient(135deg, rgba(255, 153, 0, 0.15), rgba(255, 102, 0, 0.08));
  border-color: rgba(255, 153, 0, 0.25);
}
.download-card.platform-firestick .download-btn {
  background: linear-gradient(135deg, #FF9900, #FF6600);
}

.download-card.platform-desktop::before {
  background: var(--gradient-primary);
}
.download-card.platform-desktop .platform-icon-wrap {
  background: rgba(37, 99, 235, 0.06);
  border-color: rgba(37, 99, 235, 0.15);
}
.download-card.platform-desktop .download-btn {
  background: var(--gradient-primary);
}

.platform-icon-wrap {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-lg);
  border: 1px solid;
  margin-bottom: var(--space-lg);
  transition: all var(--transition-base);
}

.platform-icon-wrap svg {
  width: 48px;
  height: 48px;
  display: block;
}

.download-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.download-card .platform-desc {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 24px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--border-radius-md);
  color: white;
  text-decoration: none;
  transition: all var(--transition-base);
  width: 100%;
  white-space: nowrap;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
  filter: brightness(1.1);
}

.download-btn svg {
  width: 16px;
  height: 16px;
}

.platform-version {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--space-sm);
}

/* ── Tabbed Installation Guide ── */
.install-tabs-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.tab-nav {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  padding: var(--space-xs);
  background: var(--bg-glass-light);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-subtle);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-nav::-webkit-scrollbar {
  height: 0;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 12px 20px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
  flex: 1;
  justify-content: center;
  min-width: max-content;
}

.tab-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(37, 99, 235, 0.05);
}

.tab-btn.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.tab-panel {
  display: none;
  animation: fadeInTab 0.4s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeInTab {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Installation Steps (vertical list) */
.install-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.install-step {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-slow);
  position: relative;
}

.install-step:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-md);
}

/* Vertical connector line between steps */
.install-steps .install-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 51px;
  bottom: -24px;
  width: 2px;
  height: 24px;
  background: var(--gradient-primary);
  opacity: 0.3;
}

.step-num {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: 50%;
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.step-content h4 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.step-content p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ── System Requirements Table ── */
.requirements-section {
  background: var(--bg-secondary);
}

.requirements-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.requirements-table thead th {
  background: var(--bg-glass-light);
  padding: var(--space-lg);
  text-align: left;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
}

.requirements-table thead th:first-child {
  width: 20%;
}

.requirements-table tbody td {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(37, 99, 235, 0.04);
  vertical-align: top;
}

.requirements-table tbody tr:last-child td {
  border-bottom: none;
}

.requirements-table tbody tr:hover td {
  background: rgba(37, 99, 235, 0.02);
}

.requirements-table .device-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.requirements-table .device-label svg {
  width: 20px;
  height: 20px;
  color: var(--primary-300);
}

/* ── CTA Section Enhancements ── */
.apk-cta-section {
  background: linear-gradient(160deg, #0A0F1F 0%, #0F1A35 40%, #152A69 70%, #0A0F1F 100%);
  color: #FFFFFF;
  text-align: center;
  padding: var(--space-4xl) 0;
  position: relative;
  overflow: hidden;
}

.apk-cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
  animation: pulse-glow 6s ease-in-out infinite;
}

.apk-cta-section h2,
.apk-cta-section p,
.apk-cta-section .btn {
  position: relative;
  z-index: 1;
}

.apk-cta-section h2 {
  color: #FFFFFF;
}

.apk-cta-section p {
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  color: #94A3B8;
}

/* ── Responsive ── */
@media (max-width: 1200px) {
  .download-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1024px) {
  .apk-hero {
    min-height: auto;
    padding-top: 120px;
    padding-bottom: var(--space-3xl);
  }

  .hero-content h1 {
    font-size: var(--font-size-4xl);
  }

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

@media (max-width: 768px) {
  .apk-hero {
    padding-top: 100px;
    padding-bottom: var(--space-2xl);
  }

  .hero-content h1 {
    font-size: var(--font-size-3xl);
  }

  .download-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tab-nav {
    gap: var(--space-xs);
    padding: 4px;
  }

  .tab-btn {
    padding: 10px 14px;
    font-size: var(--font-size-xs);
  }

  .tab-btn svg {
    display: none;
  }

  .install-step {
    flex-direction: column;
    gap: var(--space-md);
  }

  .install-steps .install-step:not(:last-child)::after {
    display: none;
  }

  .requirements-table {
    font-size: var(--font-size-xs);
  }

  .requirements-table thead th,
  .requirements-table tbody td {
    padding: var(--space-sm) var(--space-md);
  }
}

@media (max-width: 480px) {
  .download-grid {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .hero-trust-badges {
    flex-direction: column;
    gap: var(--space-md);
  }
}