/* ===== Download Page Styles ===== */

/* ===== Hero ===== */
.dl-hero {
  padding: 140px 0 60px;
  text-align: center;
  background: linear-gradient(180deg, #f0f5ff 0%, #ffffff 100%);
}
.dl-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--accent);
  background: rgba(51,112,255,0.08);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
}
.dl-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.dl-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 500px;
  margin: 0 auto;
}

/* ===== Download Grid ===== */
.dl-section {
  padding: 60px 0 80px;
}
.dl-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.dl-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}
.dl-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.dl-card.featured {
  border-color: var(--accent);
  box-shadow: 0 4px 24px rgba(51,112,255,0.15);
}
.dl-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.dl-platform-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: 14px;
  flex-shrink: 0;
}
.dl-platform-icon svg {
  width: 36px;
  height: 36px;
}
.dl-platform-info h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 4px;
}
.dl-version {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.dl-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}
.dl-requirements {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.dl-requirements li {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.dl-requirements li::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--text-muted);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ===== Download Buttons ===== */
.dl-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  text-align: center;
}
.dl-btn-icon {
  font-size: 1.1rem;
}
.dl-btn.windows {
  background: #0078D4;
  color: #fff;
}
.dl-btn.windows:hover {
  background: #106EBE;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,120,212,0.3);
}
.dl-btn.mac {
  background: #1d2129;
  color: #fff;
  justify-content: flex-start;
}
.dl-btn.mac:hover {
  background: #000;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}
.dl-btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}
.dl-btn-text strong {
  font-size: 0.9rem;
}
.dl-btn-text small {
  font-size: 0.72rem;
  opacity: 0.7;
  font-weight: 400;
}
.dl-btn-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.dl-btn-group .dl-btn.mac {
  width: 100%;
}
.dl-tutorial-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--accent, #1a6dff);
  text-decoration: none;
  padding: 10px 16px;
  border: 1px solid var(--accent, #1a6dff);
  border-radius: 10px;
  transition: all 0.2s ease;
}
.dl-tutorial-link:hover {
  background: var(--accent, #1a6dff);
  color: #fff;
}
.dl-btn.android {
  background: #3DDC84;
  color: #1d2129;
}
.dl-btn.android:hover {
  background: #2ecc6f;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(61,220,132,0.3);
}

/* ===== QR Code ===== */
.dl-qr-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}
.dl-qr-img {
  width: 140px;
  height: 140px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: #fff;
  padding: 6px;
}
.dl-qr-hint {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0;
}

/* ===== Installation Guide ===== */
.dl-guide {
  padding: 60px 0 80px;
  background: var(--bg-secondary);
}
.dl-guide-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 40px;
}
.dl-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.dl-step {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 28px 24px;
  text-align: center;
  width: 200px;
  transition: var(--transition);
}
.dl-step:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.dl-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(51,112,255,0.1);
  color: var(--accent);
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 700;
  margin: 0 auto 14px;
}
.dl-step h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.dl-step p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}
.dl-step-arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .dl-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
}
@media (max-width: 768px) {
  .dl-hero { padding: 120px 24px 40px; }
  .dl-title { font-size: 1.8rem; }
  .dl-section { padding: 40px 0 60px; }
  .dl-guide { padding: 40px 0 60px; }
  .dl-steps { flex-direction: column; }
  .dl-step-arrow { transform: rotate(90deg); }
}