/* ============================================================
   CompTIA A+ Cyber Study Guide — Online Companion
   ArcLight Press · erictomchik.com
   ============================================================ */

/* --- Reset & Base ------------------------------------------ */
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/* --- Typography -------------------------------------------- */
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h1{font-size:2.5rem;letter-spacing:-.02em}
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h3{font-size:1.25rem;margin-bottom:.75rem}
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/* --- Layout ------------------------------------------------ */
.container{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}
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/* --- Navigation -------------------------------------------- */
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/* --- Hero -------------------------------------------------- */
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.hero h1{margin-bottom:.75rem;position:relative}
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/* --- Buttons ----------------------------------------------- */
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/* --- Cards ------------------------------------------------- */
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/* Chapter cards */
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/* --- Section Styling --------------------------------------- */
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.section-alt{background:var(--bg-card)}

/* --- Reference Tables -------------------------------------- */
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/* --- Glossary ---------------------------------------------- */
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/* --- Flashcards -------------------------------------------- */
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/* --- Quiz -------------------------------------------------- */
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/* --- Lab Cards --------------------------------------------- */
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/* --- Domain Progress --------------------------------------- */
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.domain-bar .domain-name{font-weight:600}
.domain-bar .domain-chapter{color:var(--text-dim)}
.domain-bar .bar{height:8px;background:var(--border);border-radius:4px;overflow:hidden}
.domain-bar .bar-fill{height:100%;border-radius:4px;background:linear-gradient(90deg,var(--accent),var(--green))}

/* --- Tags / Badges ----------------------------------------- */
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  padding:.2rem .6rem;
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  font-size:.75rem;
  font-weight:600;
}
.tag-cyan{background:rgba(6,182,212,.15);color:var(--accent)}
.tag-green{background:rgba(16,185,129,.15);color:var(--green)}
.tag-orange{background:rgba(245,158,11,.15);color:var(--orange)}

/* --- Footer ------------------------------------------------ */
.footer{
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  font-size:.85rem;
}
.footer a{color:var(--text-muted)}
.footer .footer-brand{font-weight:700;color:var(--text-muted);margin-bottom:.5rem;display:block}

/* --- Utilities --------------------------------------------- */
.text-center{text-align:center}
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.mt-2{margin-top:2rem}
.mb-2{margin-bottom:2rem}
.hidden{display:none}

/* --- Scroll animations ------------------------------------- */
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.fade-in.visible{opacity:1;transform:translateY(0)}

/* --- Print ------------------------------------------------- */
@media print{
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  body{background:#fff;color:#000}
  .card,.glossary-item,.quiz-question{border:1px solid #ccc;break-inside:avoid}
}

/* --- Clickable chapter cards -------------------------------- */
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.chapter-link{color:inherit !important;text-decoration:none}
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/* --- Glossary alpha filter ---------------------------------- */
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.glossary-alpha-filter{display:flex;flex-wrap:wrap;gap:.35rem}
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}
.alpha-btn:hover,.alpha-btn.active{background:var(--accent);color:var(--bg);border-color:var(--accent)}

/* --- Interactive terminal ----------------------------------- */
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}
.terminal-titlebar{
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.terminal-dot{width:12px;height:12px;border-radius:50%;display:inline-block}
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.terminal-dot.green{background:#28c840}
.terminal-title{color:#8b949e;font-size:.8rem;margin-left:.5rem;font-family:var(--mono)}
.terminal-body{
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.terminal-input-line{display:flex;align-items:center;margin-top:.25rem}
.terminal-prompt{color:#3fb950;margin-right:.5rem;white-space:nowrap;user-select:none}
.terminal-input{
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}
.terminal-hint{
  padding:.75rem 1.25rem;background:#161b22;border-top:1px solid #30363d;
  font-size:.8rem;color:#8b949e;display:flex;align-items:center;gap:.5rem;
}
.terminal-hint .hint-icon{font-size:1rem}
.terminal-task{
  background:var(--bg-card2);border:1px solid var(--border);border-radius:8px;
  padding:1rem 1.25rem;margin:.75rem 0;font-size:.9rem;
}
.terminal-task .task-num{
  display:inline-block;background:var(--accent);color:var(--bg);
  width:22px;height:22px;line-height:22px;text-align:center;border-radius:50%;
  font-size:.75rem;font-weight:700;margin-right:.5rem;
}
.terminal-task.completed{border-color:var(--green);background:rgba(16,185,129,.05)}
.terminal-task.completed .task-num{background:var(--green)}
.lab-progress{
  display:flex;align-items:center;gap:.75rem;margin:1rem 0;
}
.lab-progress-bar{
  flex:1;height:6px;background:var(--border);border-radius:3px;overflow:hidden;
}
.lab-progress-fill{
  height:100%;background:linear-gradient(90deg,var(--accent),var(--green));
  border-radius:3px;transition:width .4s;
}
.lab-progress-text{font-size:.8rem;color:var(--text-muted);white-space:nowrap}

/* --- Chapter Grid Layout ----------------------------------- */
.chapter-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;margin-bottom:2.5rem}
.part-label{color:var(--accent);margin-bottom:.15rem;font-size:.85rem;text-transform:uppercase;letter-spacing:.12em;font-weight:700}
.part-title{margin-bottom:1.25rem;font-size:1.35rem;font-weight:700}
.chapter-card h3{font-size:.95rem;line-height:1.35;margin-bottom:.5rem}
.chapter-card p{font-size:.82rem;line-height:1.5;color:var(--text-muted);margin-bottom:.75rem}
@media(max-width:700px){
  .chapter-grid{grid-template-columns:1fr}
}