/**
 * OperatorPod Tools Directory, Showcase, Guides & Cheatsheets Stylesheet.
 */

/* Popular Tools & General Tool Grid */
.op-tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 1200px) {
  .op-tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 860px) {
  .op-tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 580px) {
  .op-tools-grid {
    grid-template-columns: 1fr;
  }
}

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

@media (max-width: 1024px) {
  .op-tools-grid--dense {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .op-tools-grid--dense {
    grid-template-columns: 1fr;
  }
}

.op-tools-grid--directory,
.op-cheatsheets-cards-grid {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 820px) {
  .op-tools-grid--directory,
  .op-cheatsheets-cards-grid {
    grid-template-columns: 1fr;
  }
}

/* Tool Card - Clean Horizontal Structure matching Image Mockup */
.op-tool-card {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1.25rem 1.25rem;
  box-shadow: var(--op-shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 1.15rem;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.op-tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--op-shadow-md);
  border-color: var(--op-primary);
}

.op-card-icon-col {
  flex-shrink: 0;
}

.op-card-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--op-primary-light);
  color: var(--op-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(37, 99, 235, 0.15);
  flex-shrink: 0;
}

.op-card-icon {
  width: 22px;
  height: 22px;
}

.op-card-content-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.op-card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 0.35rem;
}

.op-card-title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--op-text);
  line-height: 1.3;
}

.op-card-title a {
  color: inherit;
  text-decoration: none;
}

.op-card-arrow {
  color: var(--op-text-light);
  font-size: 1.125rem;
  font-weight: 600;
  transition: transform 0.15s, color 0.15s;
  flex-shrink: 0;
}

.op-tool-card:hover .op-card-arrow {
  color: var(--op-primary);
  transform: translateX(3px);
}

.op-card-desc {
  margin: 0;
  font-size: 0.84375rem;
  color: var(--op-text-muted);
  line-height: 1.45;
}

.op-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.op-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--op-border);
}

/* Directory Page Layout */
.op-directory-container {
  padding-top: 2.5rem;
  padding-bottom: 5rem;
}

.op-directory-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .op-directory-layout {
    grid-template-columns: 1fr;
  }
}

.op-directory-sidebar {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1.25rem 1rem;
  box-shadow: var(--op-shadow-sm);
}

.op-filter-heading {
  margin: 0 0 0.875rem 0;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--op-text-light);
}

.op-filter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.op-filter-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: var(--op-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--op-text);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
}

.op-filter-btn:hover {
  background: var(--op-bg-subtle);
  color: var(--op-primary);
}

.op-filter-btn.op-active {
  background: var(--op-primary-light);
  color: var(--op-primary);
  font-weight: 600;
}

.op-filter-count {
  font-size: 0.75rem;
  color: var(--op-text-light);
}

.op-filter-btn.op-active .op-filter-count {
  color: var(--op-primary);
}

.op-directory-toolbar {
  margin-bottom: 1.5rem;
}

.op-search-box-wrap {
  position: relative;
  width: 100%;
}

.op-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--op-text-light);
  pointer-events: none;
}

.op-tools-search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  font-size: 0.9375rem;
  color: var(--op-text);
  background: #FFFFFF;
  box-shadow: var(--op-shadow-sm);
  outline: none;
  transition: all 0.15s;
}

.op-tools-search-input:focus {
  border-color: var(--op-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Single Tool Page Header */
.op-tool-header-wrap {
  padding-bottom: 2rem;
}

.op-tool-header-main {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-top: 0.75rem;
}

.op-tool-main-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: var(--op-radius-md);
  background: var(--op-primary-light);
  color: var(--op-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.op-tool-main-icon {
  width: 34px;
  height: 34px;
}

.op-tool-title {
  margin: 0 0 0.35rem 0;
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
}

.op-tool-subtitle {
  font-size: 1.0625rem;
  margin-bottom: 1rem;
}

.op-tool-pills-list {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.op-tool-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--op-success-bg);
  border: 1px solid var(--op-success-border);
  color: var(--op-success);
  padding: 3px 10px;
  border-radius: var(--op-radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
}

.op-badge-pill-icon {
  width: 13px;
  height: 13px;
}

/* Tool Guide / Explanatory Bottom Content */
.op-tool-guide-content {
  margin-top: 3.5rem;
  padding-top: 3rem;
  border-top: 1px solid var(--op-border);
}

.op-guide-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 3rem;
}

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

.op-guide-section {
  margin-bottom: 2.5rem;
}

.op-guide-section h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--op-text);
  margin: 0 0 1rem 0;
}

.op-doc-links-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 1rem;
}

.op-doc-link-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--op-bg-subtle);
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--op-text);
  text-decoration: none;
  transition: all 0.15s;
}

.op-doc-link-item:hover {
  background: #FFFFFF;
  border-color: var(--op-primary);
  color: var(--op-primary);
}

.op-doc-icon {
  width: 18px;
  height: 18px;
  color: var(--op-primary);
}

/* Sidebar in Tool Guide */
.op-sidebar-card {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1.5rem;
  box-shadow: var(--op-shadow-sm);
}

.op-sidebar-heading {
  margin: 0 0 1rem 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--op-text);
}

.op-sidebar-tools-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.op-sidebar-tools-list li a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--op-radius-sm);
  text-decoration: none;
  color: var(--op-text);
  transition: background 0.15s;
}

.op-sidebar-tools-list li a:hover {
  background: var(--op-bg-subtle);
}

.op-sidebar-tools-list li a strong {
  display: block;
  font-size: 0.875rem;
  color: var(--op-text);
}

.op-sidebar-tools-list li a span {
  display: block;
  font-size: 0.75rem;
  color: var(--op-text-muted);
}

.op-sb-icon {
  width: 18px;
  height: 18px;
  color: var(--op-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Cheat Sheets Grid */
.op-cheatsheets-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 992px) {
  .op-cheatsheets-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .op-cheatsheets-grid {
    grid-template-columns: 1fr;
  }
}

.op-cheatsheet-card {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--op-shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}

.op-cheatsheet-card:hover {
  transform: translateY(-2px);
  border-color: var(--op-primary);
  box-shadow: var(--op-shadow-md);
}

/* Guides Grid & Guide Detail */
.op-guides-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 992px) {
  .op-guides-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .op-guides-grid {
    grid-template-columns: 1fr;
  }
}

.op-guide-card {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--op-shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}

.op-guide-card:hover {
  transform: translateY(-2px);
  border-color: var(--op-primary);
  box-shadow: var(--op-shadow-md);
}

.op-guide-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.op-guide-icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--op-primary-light);
  color: var(--op-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.op-guide-icon {
  width: 18px;
  height: 18px;
}

.op-guide-meta {
  font-size: 0.75rem;
  color: var(--op-text-muted);
}

.op-guide-card-title {
  margin: 0 0 0.75rem 0;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
}

.op-guide-card-title a {
  color: var(--op-text);
  text-decoration: none;
}

.op-guide-card-title a:hover {
  color: var(--op-primary);
}

.op-guide-card-desc {
  margin: 0 0 1.25rem 0;
  font-size: 0.875rem;
  color: var(--op-text-muted);
  line-height: 1.5;
  flex-grow: 1;
}

.op-link-arrow-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--op-primary);
  text-decoration: none;
}

.op-link-arrow-text:hover {
  color: var(--op-primary-hover);
}

/* Single Guide Detail Layout (matches Image 2 Bottom Left) */
.op-guide-detail-container {
  padding-top: 2rem;
  padding-bottom: 5rem;
}

.op-guide-layout {
  display: grid;
  grid-template-columns: 240px 1fr 220px;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 1100px) {
  .op-guide-layout {
    grid-template-columns: 220px 1fr;
  }
  .op-guide-toc-sidebar {
    display: none;
  }
}

@media (max-width: 820px) {
  .op-guide-layout {
    grid-template-columns: 1fr;
  }
}

.op-sidebar-nav-box {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1rem;
  box-shadow: var(--op-shadow-sm);
}

.op-sb-nav-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 0.875rem 0;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--op-text);
  padding-left: 6px;
}

.op-sb-head-icon {
  width: 16px;
  height: 16px;
  color: var(--op-primary);
}

.op-sb-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.op-sb-nav-item {
  margin: 0;
  padding: 0;
  list-style: none;
}

.op-sb-nav-item a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--op-radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: #334155;
  text-decoration: none;
  transition: all 0.15s ease-in-out;
}

.op-sb-item-icon {
  width: 16px;
  height: 16px;
  color: var(--op-text-muted);
  flex-shrink: 0;
  transition: color 0.15s ease;
}

.op-sb-nav-item a:hover {
  background: var(--op-bg-subtle);
  color: var(--op-primary);
}

.op-sb-nav-item a:hover .op-sb-item-icon {
  color: var(--op-primary);
}

.op-sb-nav-item--active a {
  background: var(--op-primary-light);
  color: var(--op-primary);
  font-weight: 700;
}

.op-sb-nav-item--active .op-sb-item-icon {
  color: var(--op-primary);
}

/* Sticky Right Table of Contents */
.op-guide-toc-sidebar {
  position: sticky;
  top: 92px;
}

.op-toc-box--sticky {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1.25rem;
  box-shadow: var(--op-shadow-sm);
}

.op-toc-heading {
  margin: 0 0 0.875rem 0;
  font-size: 0.875rem;
  font-weight: 750;
  color: var(--op-text);
  letter-spacing: -0.01em;
}

.op-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.op-toc-list li a {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--op-text-muted);
  text-decoration: none;
  line-height: 1.4;
  transition: color 0.15s ease;
}

.op-toc-arrow {
  color: var(--op-text-light);
  font-weight: 700;
}

.op-toc-list li a:hover {
  color: var(--op-primary);
}

.op-toc-list li a:hover .op-toc-arrow {
  color: var(--op-primary);
}

/* Article Area */
.op-article-header {
  margin-bottom: 2rem;
}

.op-article-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem 0;
  color: var(--op-text);
  line-height: 1.2;
}

.op-article-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--op-text-muted);
  margin-bottom: 1rem;
}

.op-article-lead {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--op-text-muted);
  margin: 0;
}

/* Banner Illustration (matches Mockup) */
.op-guide-banner-illustration {
  background: linear-gradient(180deg, #F0F7FF 0%, #E0EFFF 100%);
  border: 1px solid #BFDBFE;
  border-radius: var(--op-radius-lg);
  padding: 2.5rem 2rem;
  margin: 2rem 0;
  display: flex;
  justify-content: center;
}

.op-guide-diagram-img {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: var(--op-radius-md);
  box-shadow: var(--op-shadow-md);
}

/* Common Gotchas Grid in Tool Guide */
.op-gotchas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1.25rem 0 2rem;
}

.op-gotcha-box {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-left: 4px solid var(--op-warning);
  border-radius: var(--op-radius-sm);
  padding: 1rem 1.25rem;
  box-shadow: var(--op-shadow-sm);
}

.op-gotcha-title {
  margin: 0 0 0.5rem 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--op-text);
}

.op-gotcha-desc {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--op-text-muted);
  line-height: 1.5;
}

/* Diagnostic kubectl Commands List */
.op-commands-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 1.25rem 0 2rem;
}

.op-cmd-item {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-sm);
  padding: 1rem;
}

.op-cmd-head strong {
  font-size: 0.875rem;
  color: var(--op-text);
}

.op-cmd-item .op-code-block {
  margin: 8px 0 0;
  padding: 10px 14px;
}

.op-art-flow {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.op-art-node,
.op-art-terminal {
  background: #FFFFFF;
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1rem 1.25rem;
  box-shadow: var(--op-shadow-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--op-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.op-art-terminal {
  background: #0F172A;
  color: #F8FAFC;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.op-terminal-bar {
  display: flex;
  gap: 5px;
}

.op-art-svg {
  width: 22px;
  height: 22px;
  color: var(--op-primary);
}

.op-art-k8s-hub {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--op-primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.op-art-k8s-svg {
  width: 36px;
  height: 36px;
}

/* TOC Box */
.op-toc-box {
  background: var(--op-bg-subtle);
  border: 1px solid var(--op-border);
  border-radius: var(--op-radius-md);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}

.op-toc-heading {
  margin: 0 0 0.875rem 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--op-text);
}

.op-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 1.5rem;
}

@media (max-width: 640px) {
  .op-toc-list {
    grid-template-columns: 1fr;
  }
}

.op-toc-list li a {
  font-size: 0.875rem;
  color: var(--op-text);
  text-decoration: none;
}

.op-toc-list li a:hover {
  color: var(--op-primary);
}