:root{
  --indigo:#667eea;
  --purple:#764ba2;
  --pink:#f093fb;
  --blue:#4facfe;
  --gray-50:#f9fafb;
  --gray-100:#f8f9fa;
  --gray-200:#f5f5f5;
  --text:#333;
  --muted:#666;
  --shadow-lg:0 10px 30px rgba(0,0,0,.2);
  --shadow-md:0 4px 15px rgba(0,0,0,.1);
  --shadow-sm:0 2px 10px rgba(0,0,0,.08);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color:var(--text);
  background:var(--gray-200);
  line-height:1.6;
}

/* Utilities */
.container{max-width:1200px;margin:0 auto;padding:2rem}
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:2rem;
}
.grid-compact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:1rem;
}
.card{
  background:#fff;
  border-radius:15px;
  padding:2.5rem;
  box-shadow:var(--shadow-lg);
}
.shadow-md{box-shadow:var(--shadow-md)}
.shadow-sm{box-shadow:var(--shadow-sm)}
.round-lg{border-radius:15px}
.round-md{border-radius:12px}
.round-sm{border-radius:8px}
.br-top{border-top:5px solid var(--indigo)}
.br-top-pink{border-top:5px solid var(--pink)}
.br-top-blue{border-top:5px solid var(--blue)}
.border-left-indigo{border-left:4px solid var(--indigo)}
.border-left-indigo-6{border-left:6px solid var(--indigo)}
.bg-white{background:#fff}
.bg-light{background:var(--gray-100)}
.bg-page{background:var(--gray-200)}
.text-center{text-align:center}
.text-muted{color:var(--muted)}
.text-indigo{color:var(--indigo)}
.mb-0{margin-bottom:0}
.mb-05{margin-bottom:.5rem}
.mb-1{margin-bottom:1rem}
.mb-15{margin-bottom:1.5rem}
.mb-2{margin-bottom:2rem}
.mt-0{margin-top:0}
.mt-1{margin-top:1rem}
.mt-15{margin-top:1.5rem}
.mt-2{margin-top:2rem}
.p-0{padding:0}
.p-1{padding:1rem}
.p-15{padding:1.5rem}
.p-2{padding:2rem}
.p-25{padding:2.5rem}
.btn{
  display:inline-block;
  padding:.8rem 1.5rem;
  border-radius:8px;
  border:none;
  cursor:pointer;
  text-decoration:none;
  font-weight:600;
  transition:transform .1s ease;
}
.btn:active{transform:scale(.98)}
.btn-indigo{background:var(--indigo);color:#fff}
.btn-purple{background:var(--purple);color:#fff}

.hidden{display:none !important}

/* Header styles */
.header-white{
  background:rgba(255,255,255,.95);
  padding:2rem;
  text-align:center;
  box-shadow:0 4px 6px rgba(0,0,0,.1);
}
.header-gradient{
  background:linear-gradient(135deg,var(--indigo) 0%,var(--purple) 100%);
  color:#fff;
  padding:1.5rem 2rem;
  text-align:center;
  box-shadow:0 2px 10px rgba(0,0,0,.1);
}
.breadcrumb{
  font-size:.9rem;opacity:.9
}
.breadcrumb a{color:#fff;text-decoration:none}
.breadcrumb span.separator{opacity:.6}

.section-layout{
  display:flex;
  gap:2rem;
}
.section-nav{
  flex:0 0 220px;
  background:#fff;
  border-radius:12px;
  box-shadow:0 4px 12px rgba(0,0,0,.08);
  padding:1.5rem;
  height:fit-content;
  position:sticky;
  top:2rem;
}
.section-nav-btn{
  width:100%;
  display:block;
  padding:.75rem 1rem;
  margin-bottom:.75rem;
  border:1px solid rgba(79,70,229,.2);
  border-radius:8px;
  background:#f5f6ff;
  color:var(--indigo);
  font-weight:600;
  cursor:pointer;
  transition:background .2s ease, transform .1s ease;
}
.section-nav-btn:last-child{margin-bottom:0}
.section-nav-btn:hover,
.section-nav-btn:focus{
  background:rgba(79,70,229,.15);
  outline:none;
}
.section-nav-btn.active{
  background:var(--indigo);
  color:#fff;
  border-color:var(--indigo);
  box-shadow:0 6px 16px rgba(79,70,229,.25);
}
.section-nav-btn:active{
  transform:translateY(1px);
}
.section-content{
  flex:1;
}
.section-group + .section-group{
  margin-top:2rem;
}

@media (max-width:900px){
  .section-layout{
    flex-direction:column;
  }
  .section-nav{
    position:static;
    width:100%;
  }
  .section-nav-btn{
    display:inline-block;
    width:auto;
    margin:.25rem .5rem .25rem 0;
  }
}

.section-tab-bar{
  display:flex;
  flex-wrap:wrap;
  gap:.75rem;
  margin:2rem 0 1.5rem 0;
}
.section-tab-btn{
  padding:.75rem 1.25rem;
  border-radius:999px;
  border:1px solid rgba(79,70,229,.2);
  background:#f5f6ff;
  color:var(--indigo);
  font-weight:600;
  cursor:pointer;
  transition:background .2s ease, transform .1s ease, color .2s ease;
}
.section-tab-btn:hover,
.section-tab-btn:focus{
  background:rgba(79,70,229,.15);
  outline:none;
}
.section-tab-btn.active{
  background:var(--indigo);
  color:#fff;
  border-color:var(--indigo);
  box-shadow:0 6px 16px rgba(79,70,229,.25);
}
.section-tab-btn:active{
  transform:translateY(1px);
}

.rubric-wrap{
  margin-top:2rem;
}
.rubric-table{
  width:100%;
  border-collapse:collapse;
  margin-top:1rem;
  font-size:.95rem;
}
.rubric-table th,
.rubric-table td{
  border:1px solid #e1e4f3;
  padding:.9rem 1rem;
  vertical-align:top;
  text-align:left;
  line-height:1.6;
}
.rubric-table thead th{
  background:#f0f2ff;
  color:var(--indigo);
  font-size:1rem;
}
.rubric-table tbody th{
  background:#f8f9ff;
  color:var(--indigo);
  width:16%;
}

.embed-frame{
  margin-top:1.5rem;
  border-radius:12px;
  overflow:hidden;
  box-shadow:0 10px 25px rgba(0,0,0,.1);
}
.embed-frame iframe{
  display:block;
  width:100%;
  min-height:70vh;
  border:0;
  background:#fff;
}
.activity-wrapper{margin-bottom:2rem}
.activity-card{
  background:#fff;
  border-radius:16px;
  box-shadow:0 18px 32px rgba(0,0,0,.08);
  overflow:hidden;
}
.activity-header{
  padding:1.75rem 2rem;
  background:linear-gradient(135deg,var(--indigo) 0%,var(--purple) 100%);
  color:#fff;
}
.activity-header h2{
  margin:0;
  font-size:1.6rem;
}
.activity-header p{
  margin:.5rem 0 0 0;
  opacity:.9;
  font-size:1rem;
}
.activity-body{
  padding:2rem;
  display:flex;
  flex-direction:column;
  gap:1.5rem;
}
.activity-section{
  background:#f8f9ff;
  border-radius:12px;
  border-left:4px solid var(--indigo);
  padding:1.5rem;
}
.activity-section.required-deliverables{
  background:#1e3a8a;
  border-left-color:#0b1f4d;
  color:#e0e7ff;
}
.activity-section.required-deliverables h3{
  color:#fff;
}
.activity-section.required-deliverables .activity-subsection{
  background:#fff;
  color:#444;
  box-shadow:0 8px 20px rgba(15,23,42,.25);
}
.activity-section h3{
  margin:0 0 1rem 0;
  color:var(--indigo);
  font-size:1.25rem;
}
.activity-section p{
  margin:.5rem 0;
  color:#444;
}
.activity-list{
  margin:.5rem 0 0 1.5rem;
  line-height:1.7;
  color:#555;
}
.activity-subsection{
  background:#fff;
  border:1px solid #e1e4f3;
  border-radius:10px;
  padding:1rem 1.25rem;
  margin-top:1rem;
}
.activity-subsection h4{
  margin:0 0 .5rem 0;
  color:var(--indigo);
  font-size:1.05rem;
}
.activity-callout{
  background:#e3ebff;
  border-left:4px solid var(--indigo);
  border-radius:10px;
  padding:1rem 1.25rem;
  margin-top:1rem;
  color:#374151;
}
.video-embed{
  position:relative;
  width:100%;
  padding-bottom:56.25%;
  margin-top:1rem;
  border-radius:8px;
  overflow:hidden;
  box-shadow:0 6px 18px rgba(15,23,42,.2);
  background:#000;
}
.video-embed iframe{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  border:0;
}
.activity-checklist{
  background:#f0f2ff;
  border-radius:12px;
  padding:1.25rem 1.5rem;
  margin-top:1rem;
}
.activity-checklist h4{
  margin:0 0 .75rem 0;
  color:var(--indigo);
  font-size:1.05rem;
}
.activity-checkbox{
  display:flex;
  align-items:flex-start;
  gap:.6rem;
  margin:.4rem 0;
  font-size:.95rem;
  color:#555;
}
.activity-checkbox input{
  margin-top:.2rem;
}
.activity-checkbox.checked span{
  text-decoration:line-through;
  opacity:.65;
}
.activity-download{
  margin-top:1.5rem;
  display:flex;
  justify-content:center;
}
.activity-download .btn{
  padding:1rem 2.5rem;
  border-radius:12px;
  font-size:1rem;
  box-shadow:0 10px 24px rgba(79,70,229,.25);
}
.video-grid{
  display:grid;
  gap:2rem;
}
@media(min-width:900px){
  .video-grid{
    grid-template-columns:repeat(2, minmax(0,1fr));
  }
}
.video-card{
  background:#f8f9ff;
  border-radius:16px;
  box-shadow:0 10px 24px rgba(15,23,42,.12);
  padding:1.5rem;
  display:flex;
  flex-direction:column;
  gap:1rem;
}
.video-card h3{
  margin:.5rem 0 0 0;
  color:var(--indigo);
  font-size:1.2rem;
}
.video-card p{
  margin:0;
  color:#4b5563;
  line-height:1.6;
}
.video-card .btn{
  align-self:flex-start;
}
.safety-objective{
  background:#e8f5e9;
  border-left:5px solid #4caf50;
  border-radius:12px;
  padding:1rem 1.25rem;
  color:#2f5132;
  margin:1.5rem 0;
}
.safety-objective strong{
  color:#2c5f2d;
}
.safety-alert{
  background:#fff3cd;
  border-left:5px solid #ffc107;
  border-radius:12px;
  padding:1rem 1.25rem;
  color:#7a5a00;
}
.safety-alert .activity-list{
  margin:.25rem 0 0 1.25rem;
}
.legend-pills{
  display:flex;
  flex-wrap:wrap;
  gap:.75rem;
  margin-bottom:1rem;
}
.legend-pill{
  display:inline-block;
  padding:.45rem .85rem;
  border-radius:999px;
  font-size:.9rem;
  font-weight:600;
}
.legend-pill-safety{
  background:#ffebee;
  color:#c62828;
}
.legend-pill-exit{
  background:#e8f5e9;
  color:#2e7d32;
}
.legend-pill-power{
  background:#ffe4e6;
  color:#b91c1c;
}
.legend-pill-machine{
  background:#fff3e0;
  color:#e65100;
}
.legend-pill-sink{
  background:#e3f2fd;
  color:#1565c0;
}
.legend-pill-storage{
  background:#f3e5f5;
  color:#6a1b9a;
}
.legend-pill-table{
  background:#f5f5f5;
  color:#424242;
  border:1px solid rgba(0,0,0,.08);
}
.safety-tip{
  background:#e1f5fe;
  border-left:4px solid #0284c7;
  border-radius:10px;
  padding:.9rem 1.1rem;
  color:#0f4c75;
  font-style:italic;
}
.checklist-grid{
  display:grid;
  gap:1rem;
}
@media(min-width:900px){
  .checklist-grid{
    grid-template-columns:repeat(2, minmax(0,1fr));
  }
}
.safety-section{
  background:#ffe7e7;
  border-left:4px solid #c81e1e;
}
.safety-section h3{
  color:#b91c1c;
}
.activity-table{
  width:100%;
  border-collapse:collapse;
  margin-top:1rem;
  font-size:.95rem;
}
.activity-table th,
.activity-table td{
  border:1px solid #e1e4f3;
  padding:.9rem 1rem;
  text-align:left;
  vertical-align:top;
}
.activity-table thead th{
  background:#f0f2ff;
  color:var(--indigo);
}
.activity-table.lever-table thead th{
  background:#1e3a8a;
  color:#fff;
}
.activity-table.lever-table tbody td{
  background:#fff;
}
.setup-box{
  background:#e8f1ff;
  border-radius:18px;
  box-shadow:0 12px 24px rgba(30,58,138,0.12);
  padding:1.75rem;
  display:flex;
  flex-direction:column;
  gap:1.5rem;
}
.setup-header{
  display:flex;
  align-items:center;
  gap:.75rem;
}
.setup-icon{
  font-size:1.6rem;
}
.setup-header h3{
  margin:0;
  font-size:1.35rem;
  color:#1e3a8a;
}
.setup-instruction{
  margin:0;
  color:#2c3a5f;
  font-size:1rem;
}
.setup-card{
  background:#fff;
  border:1px solid #c5d6ff;
  border-radius:14px;
  padding:1.5rem;
  box-shadow:0 6px 16px rgba(15,23,42,0.08);
  display:flex;
  flex-direction:column;
  gap:1.25rem;
}
.setup-card h4{
  margin:0;
  color:#1e3a8a;
  font-size:1.1rem;
}
.setup-row{
  display:flex;
  flex-direction:column;
  gap:.75rem;
}
.setup-label{
  color:#1f2937;
  font-size:.98rem;
}
.setup-controls{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
  align-items:center;
}
.setup-chip{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.45rem .75rem;
  border:1px solid #94b3ff;
  border-radius:999px;
  background:rgba(148,179,255,0.18);
  color:#1e3a8a;
  font-size:.95rem;
  cursor:pointer;
  user-select:none;
}
.setup-chip input{
  margin:0;
  accent-color:#1e3a8a;
}
.setup-input{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.45rem .75rem;
  border:1px solid #cbd5ff;
  border-radius:10px;
  background:#f7f9ff;
  color:#1f2937;
  font-size:.95rem;
}
.setup-input input{
  border:1px solid #94b3ff;
  border-radius:6px;
  padding:.3rem .55rem;
  font-size:.92rem;
  min-width:90px;
}
.setup-input input.setup-short{
  min-width:70px;
}
.setup-static{
  font-weight:600;
  color:#1e3a8a;
  background:rgba(148,179,255,0.18);
  border-radius:999px;
  padding:.35rem .75rem;
}
.setup-card ul{
  margin:0;
  padding-left:1.25rem;
  color:#1f2937;
  line-height:1.7;
}
.setup-card ul li{
  margin:.4rem 0;
}
.setup-notes{
  border-color:#9db5ff;
}
.setup-notes h4{
  color:#1d4ed8;
}
.setup-notes ul{
  color:#1d2a52;
}
@media (max-width:720px){
  .setup-box{
    padding:1.25rem;
  }
  .setup-card{
    padding:1.25rem;
  }
  .setup-input input{
    min-width:70px;
  }
}
.activity-sketch-box{
  border:2px dashed #c7ccf5;
  border-radius:10px;
  min-height:160px;
  margin-top:1rem;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#9ca3af;
  font-style:italic;
}
.activity-summary{
  background:#f8f9ff;
  border-left:4px solid var(--indigo);
  border-radius:10px;
  padding:1rem 1.25rem;
  margin-top:1rem;
}
.activity-card input[type=\"text\"],
.activity-card input[type=\"number\"]{
  border:1px solid #cbd5ff;
  border-radius:6px;
  padding:.35rem .5rem;
  font-size:.95rem;
}
.activity-table input{
  width:100%;
  box-sizing:border-box;
}

/* Home page */
.home-wrap{
  min-height:100vh;
  display:flex;flex-direction:column;
  background:linear-gradient(135deg,var(--indigo) 0%,var(--purple) 100%);
}
.home-main{
  flex:1;display:flex;justify-content:center;align-items:center;padding:2rem;
}
.home-card{
  display:block;
  cursor:pointer;
  transition:transform .3s ease;
  text-decoration:none;
  color:inherit;
}
.home-card:hover{transform:translateY(-10px)}
.home-card h2{color:var(--indigo);font-size:1.8rem;margin-bottom:1rem}
.home-card .icon{font-size:4rem;margin-bottom:1rem}
.footer{
  background:rgba(255,255,255,.95);
  padding:1.5rem;
  text-align:center;color:var(--muted);
}

/* Applied Engineering layout */
.split{
  display:flex;min-height:calc(100vh - 80px);
}
.sidebar{
  width:280px;background:#fff;padding:2rem 0;box-shadow:2px 0 10px rgba(0,0,0,.05)
}
.sidebar h2{padding:0 1.5rem;color:var(--indigo);font-size:1.3rem;margin:0 0 1.5rem 0}
.sidebar ul{list-style:none;margin:0;padding:0}
.unit-link{
  display:block;padding:1rem 1.5rem;text-decoration:none;color:#333;
  border-left:4px solid transparent;transition:all .3s ease
}
.unit-link.selected{
  background:var(--indigo);color:#fff;border-left-color:var(--purple);font-weight:600
}

/* Section cards */
.section-card{
  display:block;background:var(--gray-100);padding:1.5rem;border-radius:8px;
  border-left:4px solid var(--indigo);text-decoration:none;color:inherit;
  transition:all .3s ease
}
.section-card:hover{
  background:var(--indigo);color:#fff;transform:translateX(5px)
}
.section-card:hover h3,.section-card:hover p{color:#fff}

/* Callouts */
.callout-gradient{
  background:linear-gradient(135deg,rgba(102,126,234,.1),rgba(118,75,162,.1));
  padding:1.5rem;border-radius:10px;border-left:4px solid var(--indigo)
}
.callout-info{
  background:#d1ecf1;border:2px solid #17a2b8;border-radius:10px;padding:1.5rem;text-align:center;color:#0c5460
}
.callout-warn{
  background:#fff3cd;border:2px solid #ffc107;border-radius:10px;padding:1.5rem;color:#856404
}

/* Video */
.video{
  position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:8px
}
.video iframe{
  position:absolute;inset:0;width:100%;height:100%;border:none
}

/* Accordion (Design stages) */
.stage-item{margin-bottom:1rem}
.stage-toggle{
  display:flex;gap:1.5rem;padding:1.5rem;background:var(--gray-100);
  border-left:4px solid var(--indigo);border-radius:10px;cursor:pointer;
  transition:all .3s ease;color:inherit;align-items:flex-start
}
.stage-number{font-size:2rem;font-weight:700;color:var(--indigo);min-width:50px}
.stage-title{margin:.2rem 0 .5rem 0;font-size:1.2rem;color:#333}
.stage-brief{margin:0;color:#666}
.stage-caret{font-size:1.5rem;align-self:center;margin-left:auto}
.stage-panel{
  display:none;padding:2rem;background:#fff;border:2px solid var(--indigo);border-top:none;border-radius:0 0 10px 10px;margin-top:-10px
}
.stage-item.expanded .stage-toggle{background:var(--indigo);color:#fff}
.stage-item.expanded .stage-number{color:#fff}
.stage-item.expanded .stage-title{color:#fff}
.stage-item.expanded .stage-brief{color:rgba(255,255,255,.9)}
.stage-item.expanded .stage-panel{display:block}

/* Responsive helpers */
@media (max-width: 860px){
  .split{flex-direction:column}
  .sidebar{width:100%}
}
.activity-subheading{
  margin:0 0 .75rem 0;
  color:#1e3a8a;
  font-size:1.05rem;
  font-weight:600;
}


/* Woodshop Manual & Quiz */
.woodshop-manual-wrapper{
  overflow:hidden;
}
.woodshop-theme{
  color-scheme:light;
  --woodshop-bg:#fefefe;
  --woodshop-fg:#202020;
  --woodshop-accent:#c62828;
  --woodshop-accent-dark:#8e0000;
  --woodshop-muted:#5f6368;
  --woodshop-surface:#ffffff;
  --woodshop-shadow:0 10px 30px rgba(0,0,0,0.08);
  font-family:"Inter","Segoe UI",Helvetica,Arial,sans-serif;
  background:var(--woodshop-bg);
  color:var(--woodshop-fg);
  line-height:1.6;
}
.woodshop-theme *,
.woodshop-theme *::before,
.woodshop-theme *::after{
  box-sizing:border-box;
}
.woodshop-theme img{
  max-width:100%;
  display:block;
}
.woodshop-theme .btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0.75rem 1.75rem;
  border-radius:999px;
  background:var(--woodshop-accent);
  color:#fff;
  text-decoration:none;
  font-weight:600;
  transition:background 0.2s ease, transform 0.2s ease;
  border:none;
  cursor:pointer;
}
.woodshop-theme .btn:hover,
.woodshop-theme .btn:focus{
  background:var(--woodshop-accent-dark);
  transform:translateY(-2px);
}
.woodshop-theme .btn:disabled{
  background:#bdbdbd;
  color:rgba(255,255,255,0.85);
  cursor:not-allowed;
  transform:none;
}

.woodshop-theme .btn--primary{
  background:var(--woodshop-accent);
}
.woodshop-theme .btn--secondary{
  background:#fff;
  color:var(--woodshop-accent);
  border:2px solid var(--woodshop-accent);
}
.woodshop-theme .btn--secondary:hover,
.woodshop-theme .btn--secondary:focus{
  background:var(--woodshop-accent);
  color:#fff;
}
.woodshop-theme .label{
  display:inline-block;
  font-size:0.875rem;
  letter-spacing:0.05em;
  text-transform:uppercase;
  color:#ffe082;
}
.woodshop-theme .hero{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  place-items:center;
  text-align:center;
  background:#121212;
  color:#fff;
  padding:clamp(2rem,3vw + 2rem,4rem);
}
.woodshop-theme .hero img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:0.35;
}
.woodshop-theme .hero__content{
  position:relative;
  max-width:720px;
  display:grid;
  gap:1rem;
  z-index:1;
}
.woodshop-theme .hero h1{
  margin:0;
  font-size:clamp(2.5rem,4vw + 1rem,3.5rem);
  text-shadow:0 4px 10px rgba(0,0,0,0.4);
}
.woodshop-theme .hero__note{
  margin:0;
  font-size:1rem;
  color:#fffde7;
}
.woodshop-manual-root main{
  max-width:1000px;
  margin:0 auto 4rem;
  padding:0 clamp(1rem,3vw,2rem);
  display:grid;
  gap:2.5rem;
}
.woodshop-manual-root .card{
  display:grid;
  gap:1.5rem;
  border-radius:1.25rem;
  background:var(--woodshop-surface);
  box-shadow:var(--woodshop-shadow);
  overflow:hidden;
}
.woodshop-manual-root .card__media{
  background:#fafafa;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:1.75rem;
}
.woodshop-manual-root .card__body{
  padding:clamp(1.5rem,3vw,2.25rem);
}
.woodshop-manual-root .card__body h2{
  margin-top:0;
}
.woodshop-manual-root .card__body h3{
  margin-bottom:0.5rem;
  color:var(--woodshop-muted);
}
.woodshop-manual-root .card ul{
  padding-left:1.25rem;
  margin:1rem 0 0;
}
.woodshop-manual-root .card li + li{
  margin-top:0.4rem;
}
.woodshop-manual-root .card.cta{
  grid-template-columns:1fr;
  text-align:center;
}
.woodshop-manual-root .card.cta .card__body{
  display:grid;
  gap:1rem;
  justify-items:center;
  padding:clamp(2rem,4vw,3rem);
}
.woodshop-manual-root .card.cta p{
  margin:0;
  max-width:640px;
}
.woodshop-manual-root .callout{
  background:#f6f8fa;
  border-radius:1rem;
  padding:1.25rem;
  margin-top:1.5rem;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,0.04);
}
.woodshop-manual-root table{
  width:100%;
  border-collapse:collapse;
  font-size:0.95rem;
}
.woodshop-manual-root th,
.woodshop-manual-root td{
  border:1px solid rgba(0,0,0,0.08);
  padding:0.6rem;
  text-align:center;
}
.woodshop-manual-root th{
  background:rgba(198,40,40,0.08);
  font-weight:700;
}
.woodshop-manual-root .tool-grid{
  margin-top:1.5rem;
  display:grid;
  gap:1rem;
  grid-template-columns:repeat(auto-fit,minmax(110px,1fr));
  text-align:center;
}
.woodshop-manual-root .tool-grid img{
  margin:0 auto;
  max-height:140px;
  object-fit:contain;
}
.woodshop-manual-root .footer{
  background:#111;
  color:#f5f5f5;
  text-align:center;
  padding:2.5rem 1rem;
}
.woodshop-manual-root .footer p{
  margin:0.5rem auto;
  max-width:760px;
}

.woodshop-quiz-root .hero{
  padding:clamp(2rem,3vw + 2rem,3.5rem);
}
.woodshop-quiz-root .hero--quiz img{
  opacity:0.25;
}
.woodshop-quiz-root .quiz-progress{
  max-width:960px;
  margin:1.5rem auto 0;
  padding:0 clamp(1rem,3vw,2rem);
  font-weight:600;
  text-align:center;
  color:var(--woodshop-muted);
}
.woodshop-quiz-root .quiz-main{
  max-width:1000px;
  margin:1.5rem auto 4rem;
  padding:0 clamp(1rem,3vw,2rem);
}
.woodshop-quiz-root .quiz-container{
  display:grid;
  gap:2.5rem;
}
.woodshop-quiz-root .quiz-card .card__body{
  display:grid;
  gap:1rem;
}
.woodshop-quiz-root .quiz-instructions{
  margin:0;
  color:var(--woodshop-muted);
  font-weight:500;
}
.woodshop-quiz-root .quiz-form{
  display:grid;
  gap:1rem;
}
.woodshop-quiz-root .question{
  margin:0;
  border:1px solid rgba(0,0,0,0.08);
  border-radius:1rem;
  padding:1rem 1.25rem 1.25rem;
  background:#fff;
  transition:border-color 0.2s ease, background 0.2s ease;
}
.woodshop-quiz-root .question legend{
  display:block;
  font-weight:600;
  margin-bottom:0.75rem;
  color:var(--woodshop-fg);
}
.woodshop-quiz-root .question__number{
  color:var(--woodshop-accent);
  font-weight:700;
  margin-right:0.35rem;
}
.woodshop-quiz-root .question__choices{
  display:flex;
  flex-wrap:wrap;
  gap:0.75rem 2rem;
}
.woodshop-quiz-root .question__choice{
  display:inline-flex;
  align-items:center;
  gap:0.4rem;
  font-weight:600;
  color:var(--woodshop-fg);
}
.woodshop-quiz-root .question__choice input{
  width:1rem;
  height:1rem;
}
.woodshop-quiz-root .question--correct{
  border-color:#2e7d32;
  background:#e8f5e9;
}
.woodshop-quiz-root .question--incorrect{
  border-color:#c62828;
  background:#ffebee;
}
.woodshop-quiz-root .feedback{
  min-height:1.4rem;
  font-weight:600;
  color:var(--woodshop-muted);
}
.woodshop-quiz-root .feedback[data-state="error"]{
  color:#c62828;
}
.woodshop-quiz-root .feedback[data-state="success"]{
  color:#2e7d32;
}
.woodshop-quiz-root .quiz-actions{
  display:flex;
  justify-content:flex-end;
  gap:0.75rem;
  margin-top:0.5rem;
}
.woodshop-quiz-root .quiz-card--complete .card__body{
  text-align:center;
  justify-items:center;
  gap:1.5rem;
}
.woodshop-quiz-root .footer{
  background:#111;
  color:#f5f5f5;
  text-align:center;
  padding:2.5rem 1rem;
}
.woodshop-quiz-root .footer a{
  color:#ffe082;
  font-weight:600;
  text-decoration:none;
}
.woodshop-quiz-root .footer a:hover,
.woodshop-quiz-root .footer a:focus{
  text-decoration:underline;
}

@media (min-width:768px){
  .woodshop-manual-root .card{
    grid-template-columns:minmax(0,280px) minmax(0,1fr);
    align-items:stretch;
  }
  .woodshop-manual-root .card__media{
    padding:2.5rem;
  }
  .woodshop-manual-root .card.cta{
    grid-template-columns:1fr;
  }
}

/* Cube Project pages */
.cube-project-page{
  --primary-blue:#2E5C8A;
  --secondary-blue:#4A90C8;
  --light-blue:#E8F1F8;
  --dark-gray:#2C3E50;
  --medium-gray:#5A6C7D;
  --light-gray:#ECF0F3;
  --white:#FFFFFF;
  --warm-orange:#FF8C42;
  --warm-amber:#FFB84D;
  --warm-coral:#FF6B6B;
  --warm-yellow:#FFC857;
  --success:#4CAF50;
  --warning:#FF9800;
  --danger:#F44336;
  --font-primary:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;
  --font-mono:'Courier New',Courier,monospace;
  --spacing-xs:.5rem;
  --spacing-sm:1rem;
  --spacing-md:1.5rem;
  --spacing-lg:2rem;
  --spacing-xl:3rem;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-lg:12px;
  --shadow-sm:0 2px 4px rgba(0,0,0,0.1);
  --shadow-md:0 4px 8px rgba(0,0,0,0.12);
  --shadow-lg:0 8px 16px rgba(0,0,0,0.15);
  font-family:var(--font-primary);
  line-height:1.6;
  color:var(--dark-gray);
  background-color:var(--light-gray);
}
.cube-project-page *{
  box-sizing:border-box;
}
.cube-project-page .navbar{
  background-color:var(--primary-blue);
  box-shadow:var(--shadow-md);
  position:sticky;
  top:0;
  z-index:1000;
}
.cube-project-page .nav-container{
  max-width:1200px;
  margin:0 auto;
  padding:0 var(--spacing-md);
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.cube-project-page .nav-logo{
  display:flex;
  align-items:center;
  gap:var(--spacing-sm);
  padding:var(--spacing-sm) 0;
}
.cube-project-page .logo-icon{
  font-size:1.8rem;
}
.cube-project-page .logo-text{
  color:var(--white);
  font-size:1.2rem;
  font-weight:600;
}
.cube-project-page .nav-menu{
  display:flex;
  list-style:none;
  gap:var(--spacing-sm);
  padding:0;
  margin:0;
}
.cube-project-page .nav-menu a{
  color:var(--white);
  text-decoration:none;
  padding:var(--spacing-sm) var(--spacing-md);
  border-radius:var(--radius-sm);
  transition:all .3s ease;
  font-weight:500;
  display:block;
}
.cube-project-page .nav-menu a:hover{
  background-color:var(--secondary-blue);
}
.cube-project-page .nav-menu a.active{
  background-color:var(--warm-orange);
}
.cube-project-page .hero{
  background:linear-gradient(135deg,var(--primary-blue) 0%,var(--secondary-blue) 100%);
  color:var(--white);
  padding:var(--spacing-xl) var(--spacing-md);
  text-align:center;
}
.cube-project-page .hero h1{
  font-size:2.5rem;
  margin-bottom:var(--spacing-sm);
  font-weight:700;
}
.cube-project-page .hero .subtitle{
  font-size:1.3rem;
  margin-bottom:var(--spacing-md);
  opacity:.95;
}
.cube-project-page .badge{
  display:inline-block;
  background-color:var(--warm-amber);
  color:var(--dark-gray);
  padding:var(--spacing-xs) var(--spacing-md);
  border-radius:var(--radius-lg);
  font-weight:600;
  font-size:.95rem;
}
.cube-project-page .container{
  max-width:1200px;
  margin:0 auto;
  padding:var(--spacing-md);
}
.cube-project-page .card{
  background-color:var(--white);
  border-radius:var(--radius-md);
  padding:var(--spacing-lg);
  margin-bottom:var(--spacing-lg);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .3s ease;
}
.cube-project-page .card:hover{
  box-shadow:var(--shadow-md);
}
.cube-project-page .card h2{
  color:var(--primary-blue);
  font-size:1.8rem;
  margin-bottom:var(--spacing-md);
  border-bottom:3px solid var(--warm-orange);
  padding-bottom:var(--spacing-sm);
}
.cube-project-page .card h3{
  color:var(--medium-gray);
  font-size:1.3rem;
  margin-top:var(--spacing-md);
  margin-bottom:var(--spacing-sm);
}
.cube-project-page .highlight-card{
  border-left:5px solid var(--warm-orange);
  background:linear-gradient(to right,var(--light-blue) 0%,var(--white) 100%);
}
.cube-project-page .accent-card{
  border-left:5px solid var(--warm-amber);
}
.cube-project-page .lead{
  font-size:1.15rem;
  color:var(--medium-gray);
  margin-bottom:var(--spacing-md);
  line-height:1.7;
}
.cube-project-page .note{
  color:var(--medium-gray);
  font-style:italic;
  margin-bottom:var(--spacing-md);
}
.cube-project-page .feature-list{
  list-style:none;
  padding-left:0;
}
.cube-project-page .feature-list li{
  padding:var(--spacing-xs) 0;
  padding-left:var(--spacing-lg);
  position:relative;
  line-height:1.7;
}
.cube-project-page .feature-list li:before{
  content:"▸";
  color:var(--warm-orange);
  position:absolute;
  left:0;
  font-weight:700;
  font-size:1.2rem;
}
.cube-project-page .objectives-list{
  counter-reset:objective-counter;
  list-style:none;
  padding-left:0;
}
.cube-project-page .objectives-list li{
  counter-increment:objective-counter;
  padding:var(--spacing-sm);
  margin-bottom:var(--spacing-sm);
  background-color:var(--light-blue);
  border-radius:var(--radius-sm);
  position:relative;
  padding-left:4rem;
}
.cube-project-page .objectives-list li:before{
  content:counter(objective-counter);
  position:absolute;
  left:1.25rem;
  top:50%;
  transform:translateY(-50%);
  background-color:var(--warm-orange);
  color:var(--white);
  width:2rem;
  height:2rem;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
}
.cube-project-page .reflection-list{
  padding-left:var(--spacing-lg);
}
.cube-project-page .reflection-list li{
  margin-bottom:var(--spacing-md);
  line-height:1.7;
}
.cube-project-page .timeline-list{
  list-style:none;
  padding-left:0;
}
.cube-project-page .timeline-list li{
  padding:var(--spacing-sm);
  margin-bottom:var(--spacing-sm);
  border-left:3px solid var(--secondary-blue);
  padding-left:var(--spacing-md);
}
.cube-project-page .compact-list{
  list-style:disc;
  padding-left:var(--spacing-lg);
}
.cube-project-page .compact-list li{
  margin-bottom:var(--spacing-xs);
  line-height:1.6;
}
.cube-project-page .primary-heading{
  color:var(--primary-blue);
  font-size:1.5rem;
  margin-top:var(--spacing-lg);
  margin-bottom:var(--spacing-md);
  padding-left:var(--spacing-sm);
  border-left:4px solid var(--warm-orange);
}
.cube-project-page .secondary-heading{
  color:var(--medium-gray);
  font-size:1.3rem;
  margin-top:var(--spacing-lg);
  margin-bottom:var(--spacing-md);
  padding-left:var(--spacing-sm);
  border-left:4px solid var(--warm-amber);
}
.cube-project-page .spec-section{
  margin-bottom:var(--spacing-lg);
  padding:var(--spacing-md);
  background-color:var(--light-gray);
  border-radius:var(--radius-sm);
}
.cube-project-page .deliverable{
  margin-bottom:var(--spacing-lg);
  padding:var(--spacing-md);
  border:2px solid var(--light-blue);
  border-radius:var(--radius-md);
  background-color:var(--light-blue);
}
.cube-project-page .deliverable-header{
  display:flex;
  align-items:center;
  gap:var(--spacing-md);
  margin-bottom:var(--spacing-md);
}
.cube-project-page .deliverable-number{
  background-color:var(--warm-coral);
  color:var(--white);
  width:2.5rem;
  height:2.5rem;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.3rem;
  font-weight:700;
}
.cube-project-page .deliverable h3{
  margin:0;
  color:var(--primary-blue);
}
.cube-project-page .two-column-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:var(--spacing-lg);
}
.cube-project-page .safety-box{
  background-color:var(--light-blue);
  border-left:4px solid var(--warm-coral);
  padding:var(--spacing-md);
  border-radius:var(--radius-sm);
  margin-top:var(--spacing-md);
}
.cube-project-page .safety-box h3{
  color:var(--warm-coral);
  margin-top:0;
}
.cube-project-page .safety-box ul{
  list-style:none;
  padding-left:0;
  margin:0;
}
.cube-project-page .safety-box li{
  padding:var(--spacing-xs) 0;
  padding-left:var(--spacing-md);
  position:relative;
}
.cube-project-page .safety-box li:before{
  content:"⚠";
  position:absolute;
  left:0;
  color:var(--warm-coral);
}
.cube-project-page .collapsible-section{
  border:2px solid var(--light-blue);
}
.cube-project-page .collapsible-header{
  cursor:pointer;
  user-select:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:var(--spacing-md);
  background-color:var(--light-blue);
  border-radius:var(--radius-md);
  transition:background-color .3s ease;
}
.cube-project-page .collapsible-header:hover{
  background-color:var(--secondary-blue);
  color:var(--white);
}
.cube-project-page .collapsible-header h2{
  margin:0;
  border:none;
  padding:0;
}
.cube-project-page .toggle-icon{
  font-size:1.2rem;
  transition:transform .3s ease;
}
.cube-project-page .collapsible-content{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.cube-project-page .collapsible-content.open{
  max-height:2000px;
  padding:var(--spacing-md);
}
.cube-project-page .standards-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:var(--spacing-lg);
}
.cube-project-page .grading-scale{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:var(--spacing-md);
}
.cube-project-page .grade-item{
  display:flex;
  align-items:center;
  gap:var(--spacing-md);
  padding:var(--spacing-md);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
  transition:transform .3s ease;
}
.cube-project-page .grade-item:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-md);
}
.cube-project-page .grade-letter{
  font-size:2.5rem;
  font-weight:700;
  width:3.5rem;
  height:3.5rem;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  color:var(--white);
  flex-shrink:0;
}
.cube-project-page .grade-details{
  display:flex;
  flex-direction:column;
  gap:.25rem;
}
.cube-project-page .grade-details strong{
  font-size:1.1rem;
}
.cube-project-page .grade-details span{
  font-size:.9rem;
  color:var(--medium-gray);
}
.cube-project-page .grade-details p{
  font-size:.85rem;
  margin-top:.25rem;
  line-height:1.4;
}
.cube-project-page .grade-a{
  background:linear-gradient(135deg,#4CAF50 0%,#66BB6A 100%);
}
.cube-project-page .grade-a .grade-letter{
  background-color:#4CAF50;
}
.cube-project-page .grade-b{
  background:linear-gradient(135deg,var(--secondary-blue) 0%,#5FA8D3 100%);
}
.cube-project-page .grade-b .grade-letter{
  background-color:var(--secondary-blue);
}
.cube-project-page .grade-c{
  background:linear-gradient(135deg,var(--warm-amber) 0%,#FFD180 100%);
}
.cube-project-page .grade-c .grade-letter{
  background-color:var(--warm-amber);
  color:var(--dark-gray);
}
.cube-project-page .grade-d{
  background:linear-gradient(135deg,var(--warm-orange) 0%,#FFB380 100%);
}
.cube-project-page .grade-d .grade-letter{
  background-color:var(--warm-orange);
}
.cube-project-page .grade-f{
  background:linear-gradient(135deg,var(--warm-coral) 0%,#FF8A80 100%);
}
.cube-project-page .grade-f .grade-letter{
  background-color:var(--warm-coral);
}
.cube-project-page .rubric-table{
  display:grid;
  gap:var(--spacing-sm);
  margin-top:var(--spacing-md);
}
.cube-project-page .rubric-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--spacing-sm);
}
.cube-project-page .rubric-cell{
  padding:var(--spacing-md);
  background-color:var(--white);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);
}
.cube-project-page .rubric-header{
  background-color:var(--secondary-blue);
  color:var(--white);
  font-weight:700;
}
.cube-project-page .rubric-row.rubric-header .rubric-cell{
  background-color:var(--secondary-blue);
  color:var(--white);
  font-weight:700;
}
.cube-project-page .rubric-cell ul{
  margin:0;
  padding-left:var(--spacing-lg);
  line-height:1.6;
}
.cube-project-page .rubric-cell ul li{
  margin-bottom:var(--spacing-xs);
}
.cube-project-page .functionality-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:var(--spacing-md);
}
.cube-project-page .func-item{
  background-color:var(--secondary-blue);
  padding:var(--spacing-md);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
  color:var(--white);
}
.cube-project-page .func-item h4{
  margin-top:0;
  color:var(--primary-blue);
}
.cube-project-page .bonus-deductions{
  display:flex;
  gap:var(--spacing-md);
  flex-wrap:wrap;
  margin-top:var(--spacing-lg);
}
.cube-project-page .bonus-section,
.cube-project-page .deductions-section{
  flex:1 1 260px;
  background:linear-gradient(135deg,var(--warm-orange) 0%,var(--warm-amber) 100%);
  color:var(--white);
  padding:var(--spacing-md);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
}
.cube-project-page .bonus-section h3,
.cube-project-page .deductions-section h3{
  margin-top:0;
  margin-bottom:var(--spacing-sm);
  color:var(--white);
}
.cube-project-page .bonus-section ul,
.cube-project-page .deductions-section ul{
  list-style:none;
  padding-left:0;
  margin:0;
}
.cube-project-page .bonus-section li,
.cube-project-page .deductions-section li{
  margin-bottom:var(--spacing-xs);
}
.cube-project-page .score-sheet{
  margin-top:var(--spacing-lg);
  border:2px solid var(--light-blue);
  border-radius:var(--radius-md);
  overflow:hidden;
}
.cube-project-page .score-row{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:1px;
  background-color:var(--white);
}
.cube-project-page .score-cell{
  padding:var(--spacing-md);
  background-color:var(--white);
}
.cube-project-page .score-header .score-cell{
  background-color:var(--primary-blue);
  color:var(--white);
  font-weight:600;
  text-align:center;
}
.cube-project-page .score-total .score-cell{
  background-color:var(--light-blue);
  font-weight:700;
}
.cube-project-page .score-input{
  background-color:var(--light-gray);
}
.cube-project-page .calculation-box{
  background-color:var(--light-blue);
  padding:var(--spacing-lg);
  border-radius:var(--radius-md);
  border:2px solid var(--secondary-blue);
  margin-top:var(--spacing-md);
}
.cube-project-page .calc-formula{
  font-size:1.1rem;
  margin:var(--spacing-sm) 0;
  font-family:var(--font-mono);
}
.cube-project-page .page-navigation{
  text-align:center;
  margin:var(--spacing-xl) 0;
}
.cube-project-page .nav-button{
  display:inline-block;
  background:linear-gradient(135deg,var(--warm-orange) 0%,var(--warm-amber) 100%);
  color:var(--white);
  padding:var(--spacing-md) var(--spacing-xl);
  border-radius:var(--radius-lg);
  text-decoration:none;
  font-weight:600;
  font-size:1.1rem;
  box-shadow:var(--shadow-md);
  transition:all .3s ease;
}
.cube-project-page .nav-button:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-lg);
}
.cube-project-page footer{
  background-color:var(--dark-gray);
  color:var(--white);
  text-align:center;
  padding:var(--spacing-lg);
  margin-top:var(--spacing-xl);
}
.cube-project-page .course-layout-section{
  display:flex;
  align-items:flex-start;
  gap:var(--spacing-lg);
}
.cube-project-page .course-layout-text{
  flex:1;
}
.cube-project-page .course-layout-image{
  max-width:280px;
  width:100%;
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-md);
}

@media (max-width:860px){
  .cube-project-page .course-layout-section{
    flex-direction:column;
  }
  .cube-project-page .course-layout-image{
    align-self:center;
  }
}
@media (max-width:768px){
  .cube-project-page .hero h1{
    font-size:1.8rem;
  }
  .cube-project-page .hero .subtitle{
    font-size:1.1rem;
  }
  .cube-project-page .nav-container{
    flex-direction:column;
    gap:var(--spacing-sm);
  }
  .cube-project-page .rubric-row{
    grid-template-columns:1fr;
  }
  .cube-project-page .functionality-grid{
    grid-template-columns:1fr;
  }
  .cube-project-page .grading-scale{
    grid-template-columns:1fr;
  }
  .cube-project-page .score-row{
    grid-template-columns:2fr 1fr 1fr;
    font-size:.9rem;
  }
  .cube-project-page .score-cell{
    padding:var(--spacing-sm);
  }
}
@media (max-width:480px){
  .cube-project-page .container{
    padding:var(--spacing-sm);
  }
  .cube-project-page .card{
    padding:var(--spacing-md);
  }
  .cube-project-page .logo-text{
    font-size:1rem;
  }
}
@media print{
  .cube-project-page .navbar,
  .cube-project-page .page-navigation,
  .cube-project-page footer{
    display:none;
  }
  .cube-project-page .card{
    page-break-inside:avoid;
  }
}