/* ===== Guide Layout ===== */
.guide-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: calc(100vh - 60px);
}

@media (max-width: 992px) {
  .guide-layout {
    grid-template-columns: 1fr;
  }
}

/* FAB Toggle for Mobile (Option 2) */
.fab-toggle {
  display: none;
  position: fixed;
  bottom: 2.5rem; /* Moved up slightly */
  right: 1.5rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--ki-plum);
  color: white;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  z-index: 5100; /* Above sidebar */
  border: none;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  transition: transform 0.2s, background 0.2s;
  animation: fab-pulse 2s infinite;
}

@keyframes fab-pulse {
  0% { box-shadow: 0 0 0 0 rgba(135, 0, 82, 0.4); }
  70% { box-shadow: 0 0 0 15px rgba(135, 0, 82, 0); }
  100% { box-shadow: 0 0 0 0 rgba(135, 0, 82, 0); }
}

[data-theme="dark"] .fab-toggle {
  background: var(--ki-orange);
  color: var(--ki-dark-plum);
}
.fab-toggle:active {
  transform: scale(0.9);
}

@media (max-width: 992px) {
  .fab-toggle {
    display: flex !important;
  }
  .guide-sidebar {
    position: fixed !important;
    top: 0 !important;
    right: -280px !important; /* Move to right side */
    left: auto !important;
    width: 280px;
    height: 100vh;
    z-index: 6000 !important;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: -10px 0 25px rgba(0,0,0,0.3);
    padding: 2rem 0;
    display: block !important;
    border-right: none !important;
    border-left: 1px solid var(--color-border) !important;
  }
  .guide-sidebar.active {
    right: 0 !important;
    left: auto !important;
  }
  .guide-content {
    padding: 1.5rem 1.25rem 7rem !important;
  }
}

/* Sidebar Backdrop Overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.6);
  z-index: 5500;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.sidebar-overlay.active {
  display: block !important;
}

/* ===== Sidebar (Desktop Only) ===== */
@media (min-width: 993px) {
  .guide-sidebar {
    background: var(--color-bg-card);
    border-right: 1px solid var(--color-border);
    padding: 2rem 0;
    position: sticky;
    top: 58px;
    height: calc(100vh - 58px);
    overflow-y: auto;
    transition: background var(--transition-base);
  }
}
.guide-sidebar nav {
  padding: 0 1.25rem;
}
.guide-sidebar .sidebar-title {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.5rem;
}
.guide-sidebar a {
  display: block;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  color: var(--color-text-primary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  margin-bottom: 2px;
}
.guide-sidebar a:hover {
  background: var(--color-border);
  text-decoration: none;
  transform: translateX(4px);
}
.guide-sidebar a.active {
  background: var(--ki-plum);
  color: var(--color-text-on-dark);
  box-shadow: 0 4px 12px rgba(135, 0, 82, 0.2);
}
[data-theme="dark"] .guide-sidebar a.active {
  background: var(--ki-orange);
  color: var(--ki-dark-plum);
  box-shadow: 0 4px 12px rgba(255, 135, 111, 0.2);
}

/* ===== Guide Content ===== */
.guide-content {
  padding: 4rem 5rem;
  max-width: 900px;
  margin: 0 auto;
}
.guide-content h1 {
  margin-bottom: 0.5rem;
}
.guide-content h2 {
  margin-top: 3.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}
.guide-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
.guide-content p {
  margin-bottom: 1.25rem;
}
.guide-content ul, .guide-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}
.guide-content li {
  margin-bottom: 0.5rem;
}
.guide-content pre {
  margin: 1.5rem 0;
}
.guide-content table {
  margin: 2rem 0;
}
.guide-source {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* ===== Callouts ===== */
.callout-sepsis, .callout-warning {
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin: 2.5rem 0;
  font-size: 0.95rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.callout-sepsis {
  background: var(--ki-light-blue);
  border-left: 6px solid var(--ki-blue);
}
[data-theme="dark"] .callout-sepsis {
  background: rgba(77, 181, 188, 0.1);
  border-left-color: var(--ki-blue);
}
.callout-sepsis strong {
  color: var(--ki-dark-blue);
}
[data-theme="dark"] .callout-sepsis strong {
  color: var(--ki-blue-light);
}

.callout-warning {
  background: var(--ki-yellow-light);
  border-left: 6px solid var(--ki-dark-yellow);
}
[data-theme="dark"] .callout-warning {
  background: rgba(245, 154, 0, 0.1);
  border-left-color: var(--ki-dark-yellow);
}

/* ===== Scroll Progress ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--ki-orange);
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ===== Step Cards ===== */
.step-card {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1.75rem;
  background: var(--color-bg-section-alt);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.05);
  border-color: var(--color-accent);
}
.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: var(--ki-plum);
  color: var(--color-text-on-dark);
  font-weight: 500;
  font-size: 1.15rem;
  box-shadow: 0 4px 10px rgba(135, 0, 82, 0.2);
}
[data-theme="dark"] .step-number {
  background: var(--ki-orange);
  color: var(--ki-dark-plum);
  box-shadow: 0 4px 10px rgba(255, 135, 111, 0.2);
}
.step-content h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}
.step-content p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ===== Guide Page Navigation ===== */
.guide-nav-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.guide-nav-footer a {
  font-weight: 500;
}