:root {
    --bg: #060d1a;
    --surface: #23133a;
    --surface2: #2a1647;
    --border: #3a1c63;
    --teal: #883CF0;
    --teal-dim: #23133a;
    --teal-mid: #3a1c63;
    --blue: #2563eb;
    --text: #e2eaf4;
    --text-dim: #c5d4e6;
    --text-muted: #d6d6d6;
    --success: #22d3a0;
    --warn: #f59e0b;
    --danger: #f87171;
    --radius: 10px;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  .strongdm-logs-training {
    
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    display: flex;
  }

  /* ── GRID NOISE TEXTURE ── */
  .strongdm-logs-training::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(0,212,200,0.015) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,212,200,0.015) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
  }

  /* ── SIDEBAR ── */
  .strongdm-logs-training .sidebar {
    position: sticky;
    left: 0; top: 0; bottom: 0;
    width: 260px;
    background: #180f26;
    border-right: 1px solid #3a1c63;
    display: flex;
    flex-direction: column;
    z-index: 1;
    overflow-y: auto;
  }

  .sidebar-logo {
    padding: 28px 24px 20px;
    border-bottom: 1px solid #3a1c63;
  }

  .sidebar-logo .module-tag {
    
    font-size: 10px;
    color: var(--teal);
    text-transform: uppercase;
    margin-bottom: 6px;
    display: block;
  }

  .sidebar-logo h1 {
    font-size: 17px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text);
  }

  .sidebar-logo h1 span { color: var(--teal); }

  /* progress bar */
  .progress-wrap {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
  }

  .progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-dim);
    
    margin-bottom: 8px;
  }

  .progress-bar {
    height: 4px;
    background: #282035;
    border-radius: 99px;
    overflow: hidden;
  }

  .progress-fill {
    height: 100%;
    background: var(--teal);
    border-radius: 99px;
    transition: width 0.4s ease;
    width: 0%;
  }

  .nav-section {
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-section-label {
    
    font-size: 9px;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0 24px 8px;
  }

  .nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 24px;
    cursor: pointer;
    transition: all 0.18s;
    font-size: 13px;
    color: var(--text-dim);
    font-weight: 400;
    border-left: 3px solid transparent;
    position: relative;
  }

  .nav-item:hover { background: #23133a; color: var(--text); }

  .nav-item.active {
    background: #23133a;
    color: var(--teal);
    border-left-color: var(--teal);
    font-weight: 500;
  }

  .nav-item .check-icon {
    width: 16px; height: 16px;
    border: 1.5px solid var(--text-muted);
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    transition: all 0.2s;
  }

  .nav-item.done .check-icon {
    background: var(--success);
    border-color: var(--success);
    color: var(--bg);
  }

  .nav-item.active .check-icon {
    border-color: var(--teal);
  }

  /* ── MAIN ── */
  .strongdm-logs-training .main {
    /* margin-left: 260px; */
    min-height: 100vh;
    overflow-y: auto;
    position: relative;
    z-index: 1;
    background-color: #191127;
  }

  /* ── TOPBAR ── */
  .topbar {
    height: 60px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 40px;
    gap: 16px;
    position: sticky;
    top: 0;
    background: #191127;
    backdrop-filter: blur(12px);
    z-index: 1;
  }

  .menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 34px;
    border-radius: 10px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color 0.18s, background 0.18s, transform 0.18s;
  }
  .menu-btn:hover { border-color: var(--teal); background: var(--teal-dim); }
  .menu-btn:active { transform: translateY(1px); }
  .menu-btn svg { width: 18px; height: 18px; }

  .topbar-breadcrumb {
    
    font-size: 12px;
    color: var(--text-dim);
  }

  .topbar-breadcrumb span { color: var(--teal); }

  .topbar-nav {
    margin-left: auto;
    display: flex;
    gap: 10px;
  }

  .btn {
    
    font-size: 11px;
    padding: 7px 16px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.18s;
  }

  .btn:hover { border-color: var(--teal); color: var(--teal); background: var(--teal-dim); }

  .btn-primary {
    background: var(--teal);
    color: var(--bg);
    border-color: var(--teal);
    font-weight: 700;
  }

  .btn-primary:hover { background: #883cf0e0; color: var(--bg); }

  /* ── CONTENT ── */
  .strongdm-logs-training .content {
    padding: 48px 40px;
    max-width: 900px;
  }

  .section { display: none; animation: fadeIn 0.35s ease; }
  .section.active { display: block; }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* ── HERO HEADER ── */
  .section-header {
    margin-bottom: 40px;
  }

  .section-tag {
    
    font-size: 11px;
    color: var(--teal);
    text-transform: uppercase;
    margin-bottom: 12px;
    display: block;
  }

  .section-title {
    
    font-size: 36px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text);
    margin-bottom: 14px;
  }

  .section-subtitle {
    font-size: 15px;
    color: var(--text-dim);
    line-height: 1.65;
    max-width: 640px;
    font-weight: 300;
  }

  /* ── CARDS ── */



  .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
    transition: border-color 0.2s;
  }

  .card:hover { border-color: #5e309d; }

  .card-title {
    
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .card-title .icon {
    width: 28px; height: 28px;
    background: var(--teal-dim);
    border: 1px solid #5e309d;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
  }

  .card p { font-size: 14px; color: var(--text-dim); line-height: 1.65; }

  /* ── FLOW DIAGRAM ── */
  .flow-diagram {
    display: flex;
    align-items: stretch;
    gap: 0;
    margin: 28px 0;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .flow-step {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 130px;
  }

  .flow-box {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
    text-align: center;
    flex: 1;
    cursor: pointer;
    transition: all 0.22s;
    position: relative;
  }

  .flow-box:hover, .flow-box.highlighted {
    border-color: var(--teal);
    background: var(--teal-dim);
  }

  .flow-box .step-num {
    
    font-size: 10px;
    color: var(--teal);
    margin-bottom: 6px;
    display: block;
  }

  .flow-box .step-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    line-height: 1.4;
  }

  .flow-arrow {
    color: var(--text-muted);
    font-size: 18px;
    padding: 0 4px;
    flex-shrink: 0;
  }

  .flow-detail {
    background: var(--surface2);
    border: 1px solid var(--teal-mid);
    border-radius: 8px;
    padding: 18px 20px;
    margin-top: 16px;
    display: none;
    animation: fadeIn 0.25s ease;
  }

  .flow-detail.visible { display: block; }

  .flow-detail h4 {
    
    font-size: 14px;
    font-weight: 700;
    color: var(--teal);
    margin-bottom: 8px;
  }

  .flow-detail p { font-size: 13px; color: var(--text-dim); line-height: 1.6; }

  /* ── LOG TYPES GRID ── */
  .log-type-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 24px 0;
  }

  .log-type-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s;
  }

  .log-type-card:hover, .log-type-card.active {
    border-color: var(--teal);
    background: var(--teal-dim);
  }

  .log-type-card .log-icon {
    font-size: 22px;
    margin-bottom: 10px;
    display: block;
  }

  .log-type-card h3 {
    
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
  }

  .log-type-card p { font-size: 13px; color: var(--text-dim); line-height: 1.55; }

  .log-type-detail {
    display: none;
    background: var(--surface2);
    border: 1px solid var(--teal-mid);
    border-radius: 8px;
    padding: 18px 20px;
    margin-top: 16px;
    animation: fadeIn 0.25s ease;
  }

  .log-type-detail.visible { display: block; }

  .resource-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
  }

  .chip {
    
    font-size: 11px;
    background: var(--teal-dim);
    border: 1px solid var(--teal-mid);
    color: var(--teal);
    padding: 4px 10px;
    border-radius: 99px;
  }

  /* ── STORAGE TREE ── */
  .storage-tree {
    margin: 24px 0;
  }

  .tree-node {
    margin-bottom: 8px;
  }

  .tree-parent {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
  }

  .tree-parent:hover { border-color: var(--teal-mid); }

  .tree-parent.open {
    border-color: var(--teal);
    background: var(--teal-dim);
    border-radius: 8px 8px 0 0;
  }

  .tree-parent .expand-icon {
    margin-left: auto;
    font-size: 12px;
    color: var(--text-muted);
    transition: transform 0.2s;
  }

  .tree-parent.open .expand-icon { transform: rotate(90deg); color: var(--teal); }

  .tree-children {
    display: none;
    border: 1px solid var(--teal-mid);
    border-top: none;
    border-radius: 0 0 8px 8px;
    overflow: hidden;
  }

  .tree-children.open { display: block; }

  .tree-child {
    padding: 12px 18px 12px 42px;
    font-size: 13px;
    color: var(--text-dim);
    border-top: 1px solid var(--border);
    background: var(--surface2);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: default;
  }

  .tree-child:first-child { border-top: none; }

  .tree-child .child-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--teal);
    flex-shrink: 0;
    margin-top: 5px;
  }

  .tree-child-content h5 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 3px;
    
  }

  .tree-child-content p { font-size: 12px; line-height: 1.55; }

  /* ── USE CASE TABLE ── */
  .use-case-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 13px;
  }

  .use-case-table th {
    
    font-size: 10px;
    text-transform: uppercase;
    color: var(--teal);
    padding: 12px 14px;
    text-align: left;
    background: var(--surface2);
    border-bottom: 1px solid var(--border);
  }

  .use-case-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-dim);
    background: var(--surface);
    line-height: 1.5;
    vertical-align: top;
  }

  .use-case-table tr:hover td { background: var(--surface2); }

  .badge {
    display: inline-block;
    
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 700;
  }

  .badge-enable { background: rgba(34,211,160,0.15); color: var(--success); border: 1px solid rgba(34,211,160,0.3); }
  .badge-disable { background: rgba(248,113,113,0.12); color: var(--danger); border: 1px solid rgba(248,113,113,0.25); }

  /* ── RETENTION DISPLAY ── */
  .retention-blocks {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 24px 0;
  }

  .retention-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: all 0.2s;
  }

  .retention-card:hover { border-color:#5e309d; }

  .retention-card .months {
    
    font-size: 52px;
    font-weight: 800;
    color: var(--teal);
    line-height: 1;
    margin-bottom: 4px;
  }

  .retention-card .months-label {
    
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .retention-card h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
    
  }

  .retention-card p { font-size: 12px; color: var(--text-dim); line-height: 1.5; }

  .retention-total {
    background: var(--surface2);
    border: 1px solid var(--teal-mid);
    border-radius: var(--radius);
    padding: 18px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
  }

  .retention-total .big-num {
    
    font-size: 40px;
    font-weight: 800;
    color: var(--teal);
    flex-shrink: 0;
  }

  .retention-total p { font-size: 14px; color: var(--text-dim); }

  /* ── QUIZ ── */
  .quiz-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    margin: 28px 0;
  }

  .quiz-header {
    
    font-size: 10px;
    color: var(--teal);
    text-transform: uppercase;
    margin-bottom: 16px;
  }

  .quiz-q {
    display: none;
    animation: fadeIn 0.25s ease;
  }

  .quiz-q.active { display: block; }

  .quiz-q h3 {
    
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
    line-height: 1.4;
  }

  .quiz-options { display: flex; flex-direction: column; gap: 10px; }

  .quiz-option {
    background: #1f1232;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 13px 16px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-dim);
    transition: all 0.18s;
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .quiz-option:hover:not(.answered) { border-color: #5e309d; color: var(--text); }

  .quiz-option.correct { border-color: var(--success); background: rgba(34,211,160,0.1); color: var(--success); }
  .quiz-option.incorrect { border-color: var(--danger); background: rgba(248,113,113,0.1); color: var(--danger); }

  .quiz-option .opt-letter {
    
    font-size: 11px;
    width: 22px; height: 22px;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 700;
    transition: all 0.18s;
  }

  .quiz-option.correct .opt-letter { border-color: var(--success); background: var(--success); color: var(--bg); }
  .quiz-option.incorrect .opt-letter { border-color: var(--danger); background: var(--danger); color: var(--bg); }

  .quiz-feedback {
    margin-top: 14px;
    padding: 12px 14px;
    border-radius: 6px;
    font-size: 13px;
    line-height: 1.55;
    display: none;
  }

  .quiz-feedback.visible { display: block; }
  .quiz-feedback.good { background: rgba(34,211,160,0.1); border: 1px solid rgba(34,211,160,0.3); color: var(--success); }
  .quiz-feedback.bad { background: rgba(248,113,113,0.08); border: 1px solid rgba(248,113,113,0.25); color: #fca5a5; }

  .quiz-nav {
    margin-top: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .quiz-progress-dots {
    display: flex;
    gap: 6px;
    margin-left: auto;
  }

  .quiz-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--border);
    transition: background 0.2s;
  }

  .quiz-dot.answered { background: var(--success); }
  .quiz-dot.current { background: var(--teal); }

  /* ── CALLOUT ── */
  .callout {
    border-left: 3px solid var(--teal);
    background: var(--teal-dim);
    padding: 14px 18px;
    border-radius: 0 8px 8px 0;
    margin: 18px 0;
    font-size: 13px;
    color: var(--text-dim);
    line-height: 1.65;
  }

  .callout strong { color: var(--teal); }

  .callout.warn { border-left-color: var(--warn); background: rgba(245,158,11,0.08); }
  .callout.warn strong { color: var(--warn); }

  /* ── COMPLETION ── */
  .completion-banner {
    text-align: center;
    padding: 48px;
  }

  .completion-icon {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: var(--teal-dim);
    border: 2px solid var(--teal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 20px;
  }

  .completion-banner h2 {
    
    font-size: 28px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 10px;
  }

  .completion-banner p { color: var(--text-dim); font-size: 15px; }

  /* ── DIVIDER ── */
  .divider {
    height: 1px;
    background: var(--border);
    margin: 32px 0;
  }

  h2.sub-heading {
    
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  h2.sub-heading::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--teal);
    border-radius: 2px;
  }

  .ref-links {
    background: var(--surface2);
    border-radius: 8px;
    border: 1px solid var(--border);
    overflow: hidden;
  }

  .ref-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 18px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-dim);
    text-decoration: none;
    transition: all 0.18s;
  }

  .ref-link:last-child { border-bottom: none; }
  .ref-link:hover { background: var(--teal-dim); color: var(--teal); }
  .ref-link span {  font-size: 11px; color: var(--text-muted); }

  /* ── SCROLL ── */
  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-track { background: #873cf015; }
  ::-webkit-scrollbar-thumb { background: #873cf015; border-radius: 3px; }
  ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: #180f26;
    z-index: 1;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }
  body.sidebar-open .sidebar-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  @media (max-width: 900px) {
    .menu-btn { display: inline-flex; }
    .strongdm-logs-training .main { margin-left: 0; }
    .strongdm-logs-training .content { padding: 32px 20px; }
    .topbar { padding: 0 20px; }
    .strongdm-logs-training .sidebar {
      position: absolute;
      width: min(320px, 86vw);
      transform: translateX(-110%);
      transition: transform 0.22s ease;
      box-shadow: 0 12px 40px rgba(0,0,0,0.45);
    }
    body.sidebar-open .sidebar { transform: translateX(0); }
    body.sidebar-open { overflow: hidden; }

    .grid-container{
          display: grid;
          grid-template-columns: 1fr !important;
          gap: 14px;
          margin-top: 20px;
    }
  }

  /* responsive helpers */
  img, video, canvas, svg { max-width: 100%; height: auto; }
  table { max-width: 100%; }
  @media (max-width: 720px) {
    table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  }
  pre { max-width: 100%; overflow-x: auto; }