/* ============================================================
   terminale.css — Virtual Terminal
   Primitive (panel, ecc.) in lab.css.
   ============================================================ */

.term-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.25rem;
  align-items: start;
}
.term-layout > * { min-width: 0; }
@media (max-width: 900px) {
  .term-layout { grid-template-columns: minmax(0, 1fr); }
  .fs-aside { order: -1; }
}

/* ---------- Terminale ---------- */
.terminal {
  display: flex;
  flex-direction: column;
  height: min(68vh, 620px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-sunk);
  overflow: hidden;
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--line);
  background: var(--bg-elev);
}
.term-dots { display: flex; gap: 0.4rem; }
.term-dots span { width: 11px; height: 11px; border-radius: 50%; background: var(--line); }
.term-dots span:nth-child(1) { background: #e0533d; }
.term-dots span:nth-child(2) { background: #d9a531; }
.term-dots span:nth-child(3) { background: #3fae6b; }
.term-bar-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-left: 0.3rem;
}
.term-bar-actions { margin-left: auto; display: flex; gap: 0.4rem; }
.term-bar-actions button {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: var(--bg);
  color: var(--ink-soft);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.term-bar-actions button:hover { border-color: var(--accent); color: var(--accent); }

.term-screen {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--ink);
}
.term-screen::-webkit-scrollbar { width: 10px; }
.term-screen::-webkit-scrollbar-thumb { background: var(--line); border-radius: 10px; }

.term-line { white-space: pre-wrap; word-break: break-word; }
.term-line.cmd .ps { color: var(--ink-faint); }
.term-line.err { color: #e0533d; }
.term-line.muted { color: var(--ink-soft); }
.term-line.ok { color: #3fae6b; }
.term-dir { color: var(--accent); font-weight: 600; }
.term-exe { color: #3fae6b; }

.ps-user { color: #3fae6b; }
.ps-user.root { color: #e0533d; }
.ps-host { color: var(--ink-soft); }
.ps-path { color: var(--accent); }
.ps-char { color: var(--ink-soft); }

.term-inputline {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.5rem 1.1rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.86rem;
}
#prompt { white-space: nowrap; }
#cmd {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  outline: none;
  caret-color: var(--accent);
  min-width: 0;
}

/* ---------- Sidebar filesystem ---------- */
.fs-aside {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  overflow: hidden;
}
.fs-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line);
}
.fs-head h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.fs-head .fs-user { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); }
.fs-tree {
  padding: 0.6rem 0.4rem 1rem;
  max-height: min(60vh, 540px);
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.fs-node {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.16rem 0.5rem;
  border-radius: 6px;
  white-space: nowrap;
}
.fs-node.dir { cursor: pointer; color: var(--ink); }
.fs-node.dir:hover { background: var(--bg-sunk); }
.fs-node.file { color: var(--ink-soft); }
.fs-node.cwd { background: var(--accent-wash); color: var(--accent); font-weight: 600; }
.fs-ico { width: 1rem; text-align: center; opacity: 0.8; }
.fs-node.dir .fs-ico { color: var(--accent); }

/* ---------- Hint comandi ---------- */
.cmd-hint {
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  line-height: 1.7;
}
.cmd-hint code {
  color: var(--ink-soft);
  background: var(--bg-elev);
  padding: 0.05rem 0.35rem;
  border-radius: 5px;
  border: 1px solid var(--line-soft);
}

/* ---------- Editor vi ---------- */
.vi-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  flex-direction: column;
  background: var(--bg-sunk);
}
.vi-overlay[hidden] { display: none; }
.vi-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1.1rem;
  border-bottom: 1px solid var(--line);
  background: var(--bg-elev);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.vi-bar .vi-file { color: var(--ink); font-weight: 600; }
.vi-bar .vi-hint { margin-left: auto; color: var(--ink-faint); font-size: 0.74rem; }
.vi-screen {
  flex: 1;
  overflow: auto;
  padding: 0.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  counter-reset: viln;
}
.vi-row { display: flex; }
.vi-gutter {
  width: 3.2rem;
  flex-shrink: 0;
  text-align: right;
  padding-right: 1rem;
  color: var(--ink-faint);
  user-select: none;
}
.vi-text { white-space: pre-wrap; word-break: break-word; color: var(--ink); }
.vi-cursor { background: var(--accent); color: var(--accent-ink); }
.vi-cursor.insert { background: transparent; border-left: 2px solid var(--accent); margin-left: -1px; color: var(--ink); }
.vi-status {
  padding: 0.5rem 1.1rem;
  border-top: 1px solid var(--line);
  background: var(--bg-elev);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink);
  min-height: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.vi-mode {
  font-weight: 600;
  padding: 0.15rem 0.6rem;
  border-radius: 5px;
  background: var(--bg-sunk);
  border: 1px solid var(--line);
}
.vi-mode.insert { color: #3fae6b; border-color: #3fae6b; }
.vi-mode.ex { color: var(--accent); border-color: var(--accent); }
.vi-cmdline { color: var(--ink); }

/* ============================================================
   Guida ai comandi
   ============================================================ */
.guide-panel { margin-top: 0.5rem; }
.guide-search { max-width: 30rem; margin-bottom: 1.75rem; }

.guide-cat { margin-bottom: 2rem; }
.guide-cat:last-child { margin-bottom: 0; }
.guide-cat-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 0.35rem;
}
.guide-cat-intro { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 1rem; }

.guide-cmd {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  margin-bottom: 0.6rem;
  overflow: hidden;
  transition: border-color 0.2s var(--ease);
}
.guide-cmd[open] { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.guide-cmd.concept { background: var(--accent-wash); border-style: dashed; }

.guide-cmd summary {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  flex-wrap: wrap;
  padding: 0.85rem 1.1rem;
  cursor: pointer;
  list-style: none;
}
.guide-cmd summary::-webkit-details-marker { display: none; }
.guide-cmd summary::before {
  content: "+";
  font-family: var(--font-mono);
  color: var(--ink-faint);
  margin-right: -0.3rem;
}
.guide-cmd[open] summary::before { content: "−"; color: var(--accent); }
.g-name {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
}
.guide-cmd.concept .g-name { color: var(--ink); font-style: italic; }
.g-syntax {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.g-body { padding: 0 1.1rem 1.2rem; }
.g-desc { color: var(--ink-soft); font-size: 0.94rem; line-height: 1.65; }
.g-desc code, .g-opts code, .g-ex code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-elev);
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  padding: 0.05rem 0.35rem;
  color: var(--ink);
}
.g-desc b { color: var(--ink); font-weight: 600; }

.g-opts { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: 0.45rem; }
.g-opts li { display: flex; gap: 0.85rem; align-items: baseline; font-size: 0.9rem; }
.g-opts li code { flex-shrink: 0; min-width: 4.5rem; }
.g-opts li span { color: var(--ink-soft); }

.g-examples { margin-top: 1.1rem; }
.g-ex-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.5rem;
}
.g-ex {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0;
}
.g-ex code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  padding: 0.4rem 0.6rem;
  background: var(--bg-sunk);
}
.g-try {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: var(--bg);
  color: var(--ink-soft);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.g-try:hover { border-color: var(--accent); color: var(--accent); }

.guide-empty { color: var(--ink-soft); font-family: var(--font-mono); font-size: 0.9rem; }

@media (max-width: 560px) {
  .g-ex { flex-wrap: wrap; }
  .g-opts li { flex-direction: column; gap: 0.15rem; }
  .g-syntax { flex-basis: 100%; }
}
@media (max-width: 480px) {
  .terminal { height: min(64vh, 540px); }
  .term-bar-title { display: none; }
  .term-screen { font-size: 0.78rem; padding: 0.8rem 0.85rem; }
  .term-inputline { padding: 0.4rem 0.85rem 0.8rem; }
  #cmd { font-size: 0.78rem; }
  .guide-panel { padding: 1.1rem; }
  .g-ex code { font-size: 0.72rem; }
}