/**
 * CyberShield — assets/css/roadmap.css
 * Stylesheet for the collapsible Course Roadmaps and Mobile Slider Drawer
 */

/* ══════════════════════════════════════════════════════════════
 * 1. ACCORDION CONTAINER & HEADERS
 * ══════════════════════════════════════════════════════════════*/
.cs-roadmap-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4) var(--space-4);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--space-6);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: 100%;
}

.cs-roadmap__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-2);
}

.cs-roadmap__header-title {
  font-size: var(--text-md);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cs-roadmap__close-btn {
  display: none; /* Only shown on mobile drawer */
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.cs-roadmap__close-btn:hover {
  background: var(--color-surface-2);
  color: var(--color-text-primary);
}

/* ══════════════════════════════════════════════════════════════
 * 2. COLLAPSIBLE ACCORDION ROADMAP
 * ══════════════════════════════════════════════════════════════*/
.cs-roadmap__accordion {
  max-height: calc(100vh - 280px);
  overflow-y: auto;
  padding-right: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Custom Scrollbar for Accordion Overflow */
.cs-roadmap__accordion::-webkit-scrollbar {
  width: 4px;
}

.cs-roadmap__accordion::-webkit-scrollbar-track {
  background: transparent;
}

.cs-roadmap__accordion::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--border-radius-full);
}

.cs-roadmap__accordion::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Accordion Chapter Box */
.cs-roadmap-chapter {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background: var(--color-surface-2);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.cs-roadmap-chapter:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.cs-roadmap-chapter__title {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: transparent;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.cs-roadmap-chapter__title:hover {
  background: rgba(128, 128, 128, 0.04);
}

.cs-roadmap-chapter__chevron {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.cs-roadmap-chapter__title[aria-expanded="true"] .cs-roadmap-chapter__chevron {
  transform: rotate(180deg);
  color: var(--color-accent);
}

/* Accordion Chapter Content Panel */
.cs-roadmap-chapter__content {
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.3s ease;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.cs-roadmap-links {
  list-style: none;
  padding: var(--space-2) 0;
  margin: 0;
}

.cs-roadmap-link-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.cs-roadmap-link-item:hover {
  background: rgba(128, 128, 128, 0.05);
  color: var(--color-text-primary);
  border-left-color: var(--color-accent);
}

/* Highlight currently active post link */
.cs-roadmap-link-item.active-post {
  color: var(--color-accent) !important;
  font-weight: var(--font-weight-semibold);
  border-left-color: var(--color-accent) !important;
  background: var(--color-accent-glow) !important;
}

/* Progress Checkmark Indicator */
.cs-roadmap-link-check {
  width: 14px;
  height: 14px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 8px;
  font-weight: bold;
  color: transparent;
  transition: all var(--transition-fast);
}

.cs-roadmap-link-item.read .cs-roadmap-link-check {
  background: var(--color-accent-glow);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.cs-roadmap-link-item.read .cs-roadmap-link-check::after {
  content: '✓';
}

/* ══════════════════════════════════════════════════════════════
 * 3. PROMO CALL-TO-ACTION BANNER
 * ══════════════════════════════════════════════════════════════*/
.cs-roadmap__banner {
  background: linear-gradient(135deg, var(--color-accent-glow) 0%, rgba(26, 115, 232, 0.08) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-4);
  gap: var(--space-3);
  box-sizing: border-box;
}

.cs-roadmap__banner-text {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: var(--line-height-snug);
}

.cs-roadmap__banner-btn {
  background: var(--color-blue);
  color: #ffffff !important;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  transition: all var(--transition-bounce);
  white-space: nowrap;
}

.cs-roadmap__banner-btn:hover {
  background: var(--color-blue-dark);
  transform: scale(1.03);
}

/* ══════════════════════════════════════════════════════════════
 * 4. DESKTOP GRID LAYOUT POSITIONING
 * ══════════════════════════════════════════════════════════════*/
@media (min-width: 1101px) {
  body.cs-has-left-sidebar {
    --container-width: 1380px !important;
  }
  body.cs-has-left-sidebar .cs-layout,
  body.cs-has-left-sidebar .cs-forum-layout {
    grid-template-columns: var(--sidebar-width) 1fr var(--sidebar-width) !important;
    max-width: var(--container-width) !important;
  }
  body.cs-has-left-sidebar .cs-forum-header__inner {
    max-width: var(--container-width) !important;
  }
  body.cs-has-left-sidebar .cs-article__content {
    max-width: 100% !important;
  }
  body.cs-has-left-sidebar .cs-main,
  body.cs-has-left-sidebar .cs-forum-main {
    order: 2 !important;
  }
  body.cs-has-left-sidebar #cs-roadmap-sidebar {
    order: 1 !important;
    position: sticky !important;
    top: calc(var(--nav-height) + 1.5rem) !important;
    max-height: calc(100vh - var(--nav-height) - 3rem) !important;
    margin-bottom: 0 !important;
  }
  body.cs-has-left-sidebar .cs-sidebar,
  body.cs-has-left-sidebar .cs-forum-sidebar {
    order: 3 !important;
    display: block !important;
  }

  body.cs-has-no-sidebar .cs-layout,
  body.cs-has-no-sidebar .cs-forum-layout {
    grid-template-columns: 1fr !important;
  }
  body.cs-has-no-sidebar .cs-sidebar,
  body.cs-has-no-sidebar .cs-forum-sidebar {
    display: none !important;
  }
}

/* Responsive container widths for 3-column layout on larger screens */
@media (min-width: 1441px) {
  body.cs-has-left-sidebar {
    --container-width: 1540px !important;
  }
}

@media (min-width: 1681px) {
  body.cs-has-left-sidebar {
    --container-width: 1720px !important;
  }
}

@media (min-width: 1921px) {
  body.cs-has-left-sidebar {
    --container-width: 1900px !important;
  }
}

/* Hide floating mobile triggers on desktop views */
.cs-roadmap-trigger,
.cs-roadmap-backdrop {
  display: none !important;
}

/* ══════════════════════════════════════════════════════════════
 * 5. MOBILE COLLAPSIBLE DRAWER (SLIDER) LAYOUT
 * ══════════════════════════════════════════════════════════════*/
@media (max-width: 1100px) {
  /* Keep sidebars displayed but zeroed out on mobile so that the roadmap drawer markup remains accessible in the DOM */
  body.cs-has-left-sidebar .cs-sidebar,
  body.cs-has-right-sidebar .cs-sidebar,
  body.cs-has-no-sidebar .cs-sidebar,
  body.cs-has-left-sidebar .cs-forum-sidebar,
  body.cs-has-right-sidebar .cs-forum-sidebar,
  body.cs-has-no-sidebar .cs-forum-sidebar {
    display: block !important;
    position: static !important;
    width: 0 !important;
    height: 0 !important;
    min-height: 0 !important;
    max-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    overflow: visible !important;
    background: transparent !important;
    box-shadow: none !important;
  }

  /* Hide other contents inside the sidebar on mobile */
  body.cs-has-left-sidebar .cs-sidebar > *:not(.cs-roadmap-container):not(.cs-roadmap-trigger):not(.cs-roadmap-backdrop),
  body.cs-has-right-sidebar .cs-sidebar > *:not(.cs-roadmap-container):not(.cs-roadmap-trigger):not(.cs-roadmap-backdrop),
  body.cs-has-no-sidebar .cs-sidebar > *:not(.cs-roadmap-container):not(.cs-roadmap-trigger):not(.cs-roadmap-backdrop),
  body.cs-has-left-sidebar .cs-forum-sidebar > *:not(.cs-roadmap-container):not(.cs-roadmap-trigger):not(.cs-roadmap-backdrop),
  body.cs-has-right-sidebar .cs-forum-sidebar > *:not(.cs-roadmap-container):not(.cs-roadmap-trigger):not(.cs-roadmap-backdrop),
  body.cs-has-no-sidebar .cs-forum-sidebar > *:not(.cs-roadmap-container):not(.cs-roadmap-trigger):not(.cs-roadmap-backdrop) {
    display: none !important;
  }

  /* Prevent background page scrolling when mobile drawer is open */
  html.has-roadmap-drawer-open {
    overflow: hidden !important;
  }

  /* Slide-out Left layout setting */
  .cs-roadmap-container.slide-left {
    position: fixed !important;
    top: 0 !important;
    left: -320px !important; /* hidden off-screen left */
    width: 300px !important;
    height: 100vh !important;
    max-height: 100vh !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    z-index: 1000 !important;
    border-radius: 0 !important;
    border-top: none !important;
    border-bottom: none !important;
    border-left: none !important;
    border-right: 1px solid var(--color-border) !important;
    margin: 0 !important;
    padding: 0 !important;
    background: var(--color-surface) !important;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5) !important;
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1) !important;
    transform: translate3d(0, 0, 0) !important;
  }

  .cs-roadmap-container.slide-left.open {
    transform: translate3d(320px, 0, 0) !important;
  }

  /* Slide-out Right layout setting */
  .cs-roadmap-container.slide-right {
    position: fixed !important;
    top: 0 !important;
    right: -320px !important; /* hidden off-screen right */
    width: 300px !important;
    height: 100vh !important;
    max-height: 100vh !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    z-index: 1000 !important;
    border-radius: 0 !important;
    border-top: none !important;
    border-bottom: none !important;
    border-right: none !important;
    border-left: 1px solid var(--color-border) !important;
    margin: 0 !important;
    padding: 0 !important;
    background: var(--color-surface) !important;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5) !important;
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1) !important;
    transform: translate3d(0, 0, 0) !important;
  }

  .cs-roadmap-container.slide-right.open {
    transform: translate3d(-320px, 0, 0) !important;
  }

  /* Adjust internal heights inside mobile drawers */
  .cs-roadmap-container.slide-left .cs-roadmap__inner,
  .cs-roadmap-container.slide-right .cs-roadmap__inner {
    min-height: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
    padding: var(--space-4) !important;
    display: flex !important;
    flex-direction: column !important;
  }

  .cs-roadmap-container.slide-left .cs-roadmap__accordion,
  .cs-roadmap-container.slide-right .cs-roadmap__accordion {
    flex: 1 0 auto !important;
    overflow-y: visible !important;
    max-height: none !important;
  }

  .cs-roadmap-container.slide-left .cs-roadmap__close-btn,
  .cs-roadmap-container.slide-right .cs-roadmap__close-btn {
    display: inline-flex !important;
  }

  /* Floating trigger button active only for sliding layouts */
  .cs-roadmap-trigger {
    display: flex !important;
    position: fixed !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 32px !important;
    height: 110px !important;
    background: var(--color-surface-2) !important;
    border: 1px solid var(--color-border) !important;
    color: var(--color-text-secondary) !important;
    z-index: 900 !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    box-shadow: var(--shadow-md) !important;
    transition: transform var(--transition-base), color var(--transition-fast), border-color var(--transition-fast) !important;
    gap: var(--space-2) !important;
  }

  .cs-roadmap-trigger:hover {
    color: var(--color-accent) !important;
    border-color: var(--color-accent) !important;
  }

  .cs-roadmap-trigger__svg {
    flex-shrink: 0 !important;
    color: var(--color-accent) !important;
  }

  .cs-roadmap-trigger__text {
    writing-mode: vertical-rl !important;
    text-transform: uppercase !important;
    font-size: 10px !important;
    font-weight: var(--font-weight-extrabold) !important;
    letter-spacing: 0.15em !important;
    line-height: 1 !important;
  }

  .cs-roadmap-trigger.slide-left {
    left: 0 !important;
    border-left: none !important;
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0 !important;
    animation: cs-pulse-left 2.5s infinite;
  }

  .cs-roadmap-trigger.slide-left:hover {
    transform: translateY(-50%) translateX(3px) !important;
  }

  .cs-roadmap-trigger.slide-right {
    right: 0 !important;
    border-right: none !important;
    border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm) !important;
    animation: cs-pulse-right 2.5s infinite;
  }

  .cs-roadmap-trigger.slide-right:hover {
    transform: translateY(-50%) translateX(-3px) !important;
  }

  /* Scrim backdrop overlay */
  .cs-roadmap-backdrop {
    display: block !important;
    position: fixed !important;
    inset: 0 !important;
    background: rgba(10, 14, 26, 0.75) !important;
    backdrop-filter: blur(4px) !important;
    -webkit-backdrop-filter: blur(4px) !important;
    z-index: 950 !important;
    opacity: 0 !important;
    pointer-events: none !important;
    transition: opacity 0.3s ease !important;
  }

  .cs-roadmap-backdrop.visible {
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  /* ── Pulse Animations ── */
  @keyframes cs-pulse-left {
    0% { box-shadow: 0 0 0 0 rgba(0, 255, 157, 0.4); }
    70% { box-shadow: 4px 0 12px 6px rgba(0, 255, 157, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 255, 157, 0); }
  }

  @keyframes cs-pulse-right {
    0% { box-shadow: 0 0 0 0 rgba(0, 255, 157, 0.4); }
    70% { box-shadow: -4px 0 12px 6px rgba(0, 255, 157, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 255, 157, 0); }
  }
}

/* ══════════════════════════════════════════════════════════════
 * 6. LIGHT THEME OVERRIDES (Professional & High Contrast)
 * ══════════════════════════════════════════════════════════════*/
html.light .cs-roadmap-chapter {
  background: #ffffff !important;
}

html.light .cs-roadmap-chapter__content {
  background: #f8fafc !important;
}

html.light .cs-roadmap-link-item {
  color: var(--color-text-primary) !important;
}

html.light .cs-roadmap-link-item:hover {
  background: rgba(0, 0, 0, 0.03) !important;
  color: var(--color-accent) !important;
}

html.light .cs-roadmap-link-item.active-post {
  color: var(--color-accent) !important;
  background: var(--color-accent-glow) !important;
}

html.light .cs-roadmap__banner {
  background: linear-gradient(135deg, rgba(0, 122, 74, 0.05) 0%, rgba(26, 115, 232, 0.05) 100%) !important;
  border-color: var(--color-border) !important;
}

html.light .cs-roadmap-link-check {
  border-color: var(--color-border) !important;
}

html.light .cs-roadmap-link-item.read .cs-roadmap-link-check {
  background: var(--color-accent-glow) !important;
  border-color: var(--color-accent) !important;
  color: var(--color-accent) !important;
}