/* ==========================================================================
   Course Site - Additional Styles
   ========================================================================== */

/* --- Profile Card --- */
.profile-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 24px 32px;
  max-width: 500px;
  margin: 0 auto;
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
}

.profile-details h3 {
  margin: 0 0 4px;
  font-size: 1.1rem;
}

.profile-role {
  margin: 0;
  opacity: 0.6;
  font-size: 0.85rem;
}

.profile-link {
  font-size: 0.9rem;
  color: var(--accent);
}

/* --- Content Block --- */
.content-block {
  max-width: 800px;
}

.content-block p {
  opacity: 0.8;
  line-height: 1.8;
  margin-bottom: 16px;
}

.content-block ul {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}

.content-block ul li {
  padding: 8px 0 8px 24px;
  position: relative;
  opacity: 0.8;
  line-height: 1.6;
}

.content-block ul li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.content-block h3 {
  margin: 32px 0 12px;
  font-size: 1.15rem;
  color: var(--accent);
}

/* --- Gallery images in cards --- */
.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

/* --- Page Navigation Bar --- */
.page-nav-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-nav-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  background: var(--surface);
  color: var(--text);
  opacity: 0.6;
  text-decoration: none;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s;
  font-size: 0.9rem;
}

.page-nav-item:hover {
  opacity: 1;
  border-color: var(--accent);
  color: var(--accent);
}

.page-nav-item.active {
  background: var(--accent);
  color: var(--bg);
  opacity: 1;
  border-color: var(--accent);
}

.page-nav-item.disabled {
  opacity: 0.3;
  pointer-events: none;
}

/* --- Fixed CTA Bar --- */
.cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 16px;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid rgba(46, 196, 182, 0.1);
  display: flex;
  justify-content: center;
  z-index: 90;
  transition: opacity 0.3s;
}

.cta-bar .btn-primary {
  padding: 12px 40px;
}

/* --- Pricing Section --- */
.pricing-box {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 32px;
  max-width: 600px;
  margin: 32px auto;
  text-align: left;
}

.pricing-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  opacity: 0.7;
  font-size: 0.9rem;
}

.pricing-row:last-child {
  border-bottom: none;
}

.pricing-total {
  border-top: 2px solid var(--accent);
  border-bottom: none;
  opacity: 1;
  font-weight: 700;
  color: var(--accent);
  padding-top: 16px;
  margin-top: 8px;
}

.pricing-final {
  margin: 40px 0 16px;
}

.pricing-old {
  font-size: 1.3rem;
  opacity: 0.4;
  text-decoration: line-through;
  margin: 0 0 8px;
}

.pricing-big {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--accent);
  margin: 0 0 8px;
  line-height: 1;
}

.pricing-save {
  display: inline-block;
  background: rgba(46, 196, 182, 0.15);
  color: var(--accent);
  padding: 6px 20px;
  border-radius: 4px;
  font-size: 0.95rem;
  margin: 8px 0 0;
}

.pricing-guarantee {
  margin-top: 32px;
  opacity: 0.5;
  font-size: 0.85rem;
  font-style: italic;
}

/* Override back-to-top position to avoid CTA bar overlap */
#back-top {
  bottom: 80px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .profile-card {
    flex-direction: column;
    text-align: center;
    padding: 20px;
  }

  .pricing-box {
    padding: 24px 16px;
  }

  .pricing-big {
    font-size: 2.5rem;
  }

  .pricing-row {
    font-size: 0.8rem;
    gap: 8px;
  }

  .bonus-grid {
    grid-template-columns: 1fr;
  }

  .page-nav-bar {
    gap: 8px;
  }

  .page-nav-item {
    padding: 8px 14px;
    font-size: 0.8rem;
  }

  .cta-bar .btn-primary {
    width: 100%;
    text-align: center;
  }
}