/* RPCortex — rpc.novalabs.app */

:root {
  --bg:        #0d1117;
  --bg-alt:    #161b22;
  --bg-card:   #1c2128;
  --border:    #30363d;
  --text:      #e6edf3;
  --text-muted:#8b949e;
  --cyan:      #67e8f9;
  --cyan-dim:  #22d3ee;
  --green:     #3fb950;
  --yellow:    #d29922;
  --red:       #f85149;
  --accent:    #58a6ff;
  --radius:    8px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--cyan-dim); text-decoration: none; }
a:hover { color: var(--cyan); }

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.5px;
  text-decoration: none;
}
.nav-logo:hover { color: var(--cyan); opacity: 0.8; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--text-muted); font-size: 0.9rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); }

/* ── HERO ── */
.hero {
  padding: 80px 24px 60px;
  text-align: center;
}
.hero-inner { max-width: 860px; margin: 0 auto; }

.badge {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text) 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
}

.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 52px; }

.btn-primary, .btn-secondary {
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: opacity 0.15s, transform 0.15s;
}
.btn-primary {
  background: var(--cyan-dim);
  color: #000;
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); color: #000; }
.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--bg-card);
}
.btn-secondary:hover { border-color: var(--cyan-dim); color: var(--cyan); }

/* ── TERMINAL ── */
.hero-term {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.term-bar {
  background: var(--bg-alt);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green  { background: #28c840; }
.term-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: auto;
}
.term-body {
  background: #010409;
  padding: 18px 20px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  white-space: pre;
}
.hero-term .term-body {
  height: 310px;
  overflow-y: scroll;
  overflow-x: auto;
  scrollbar-width: none;
}
.hero-term .term-body::-webkit-scrollbar { display: none; }
.term-line { display: block; }
.term-line.out { padding-left: 4px; }
.term-line.gray { color: var(--text-muted); }
.prompt { color: var(--cyan); }
.ok     { color: var(--green); }
.info   { color: var(--accent); }
.twarn  { color: var(--yellow); }
.cyan   { color: var(--cyan); font-weight: 600; }
.cursor { animation: blink 1s step-end infinite; color: var(--cyan); }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ── SECTIONS ── */
.section { padding: 80px 24px; }
.section.alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.inner { max-width: 1100px; margin: 0 auto; }
.section h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 40px;
  color: var(--text);
}

/* ── FEATURE GRID ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover { border-color: var(--cyan-dim); transform: translateY(-2px); }
.feature-icon { font-size: 1.8rem; margin-bottom: 14px; }
.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.feature-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }
.feature-card code {
  font-family: monospace;
  background: var(--bg);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.82rem;
  color: var(--cyan);
}

/* ── HARDWARE TABLE ── */
.hw-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}
.hw-table th, .hw-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.hw-table th { color: var(--text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; }
.hw-table tr:hover td { background: var(--bg-card); }
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
}
.tag.green  { background: rgba(63,185,80,0.15);  color: var(--green);  border: 1px solid rgba(63,185,80,0.3); }
.tag.yellow { background: rgba(210,153,34,0.15); color: var(--yellow); border: 1px solid rgba(210,153,34,0.3); }
.note { font-size: 0.85rem; color: var(--text-muted); margin-top: 8px; }

/* ── STEPS ── */
.steps { display: flex; flex-direction: column; gap: 20px; margin-bottom: 36px; }
.step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.step-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--cyan-dim);
  color: #000;
  font-weight: 700;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.step-text strong { display: block; margin-bottom: 4px; color: var(--text); }
.step-text p { font-size: 0.88rem; color: var(--text-muted); }
.step-text code {
  font-family: monospace;
  background: var(--bg);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.82rem;
  color: var(--cyan);
}

/* ── CODEBLOCK ── */
.codeblock {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 24px;
}
.codeblock-label {
  background: var(--bg-alt);
  padding: 8px 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-family: monospace;
}
.codeblock pre {
  background: #010409;
  padding: 18px 20px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--cyan);
  overflow-x: auto;
  white-space: pre;
}

/* ── COMMANDS GRID ── */
.cmd-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 16px;
}
.cmd-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.cmd-block-label {
  background: var(--bg-alt);
  padding: 8px 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.cmd-block pre {
  background: #010409;
  padding: 16px 18px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.82rem;
  line-height: 2;
  color: var(--cyan);
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}
.cmd-block pre .dim { color: var(--text-muted); }

/* ── DOCS CARDS ── */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.docs-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.docs-card:hover { border-color: var(--cyan-dim); transform: translateY(-2px); }
.docs-card h3 { font-size: 0.95rem; font-weight: 600; color: var(--text); }
.docs-card p  { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; flex: 1; }
.docs-card a  { font-size: 0.82rem; color: var(--cyan-dim); font-weight: 500; align-self: flex-start; }
.docs-card a:hover { color: var(--cyan); }

/* ── FOOTER ── */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 32px 24px;
}
.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 12px;
}
.footer-brand { font-size: 0.95rem; font-weight: 700; color: var(--cyan); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--text); }
.footer-note { font-size: 0.8rem; color: var(--text-muted); }
.footer-note a { color: var(--text-muted); text-decoration: underline; }

/* ── DOCS PAGE ── */
.docs-hero {
  padding: 56px 24px 40px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.docs-hero h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}
.docs-hero p {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.version-switcher {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.version-switcher a {
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.version-switcher a:hover { border-color: var(--cyan-dim); color: var(--text); }
.version-switcher a.version-active {
  border-color: var(--cyan);
  color: var(--cyan);
  font-weight: 600;
}

.docs-page-layout {
  display: flex;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 48px;
  align-items: flex-start;
}

.docs-toc {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: 72px;
  padding: 32px 0;
}
.docs-toc h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.docs-toc a {
  display: block;
  font-size: 0.83rem;
  color: var(--text-muted);
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: color 0.15s, border-color 0.15s;
}
.docs-toc a:hover { color: var(--text); border-left-color: var(--border); }
.docs-toc a.active { color: var(--cyan); border-left-color: var(--cyan); }

.docs-article {
  flex: 1;
  min-width: 0;
  padding: 40px 0 80px;
}
.docs-article h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 56px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.docs-article h2:first-child { margin-top: 0; }
.docs-article h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 32px;
  margin-bottom: 12px;
}
.docs-article p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 14px;
}
.docs-article ul, .docs-article ol {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  padding-left: 22px;
  margin-bottom: 14px;
}
.docs-article li { margin-bottom: 4px; }
.docs-article strong { color: var(--text); }
.docs-article code {
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.83rem;
  color: var(--cyan);
}
.docs-article pre {
  background: #010409;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.83rem;
  line-height: 1.8;
  color: var(--cyan);
  overflow-x: auto;
  margin: 16px 0;
}
.docs-article pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}
.docs-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.875rem;
}
.docs-article th, .docs-article td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.docs-article th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg-alt);
}
.docs-article td { color: var(--text-muted); }
.docs-article td:first-child { color: var(--cyan); font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace; font-size: 0.85rem; }
.docs-article tr:hover td { background: var(--bg-card); }
.docs-article .note-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan-dim);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 18px;
  margin: 16px 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.docs-article .warn-box {
  background: rgba(210,153,34,0.08);
  border: 1px solid rgba(210,153,34,0.3);
  border-left: 3px solid var(--yellow);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 18px;
  margin: 16px 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 860px) {
  .docs-toc { display: none; }
  .docs-page-layout { padding: 0 16px; }
}

/* ── VERSION SWITCHER ── */
.version-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.version-switcher a {
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text-muted);
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.version-switcher a:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.version-switcher a.version-active {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

/* ── PACKAGE DEV DOWNLOAD BOX ── */
.pkgdev-download {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan-dim);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 18px 24px;
  margin: 24px 0;
  flex-wrap: wrap;
}
.pkgdev-download-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pkgdev-download-text strong {
  color: var(--text);
  font-size: 0.95rem;
}
.pkgdev-download-text span {
  color: var(--text-muted);
  font-size: 0.85rem;
}
.pkgdev-download .btn-primary {
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
}

/* ── SCREENSHOTS ── */
.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 20px;
}
.screenshot-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
}
.screenshot-label {
  background: var(--bg-alt);
  padding: 8px 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-family: monospace;
}
.screenshot-wrap img {
  width: 100%;
  display: block;
  object-fit: cover;
}

/* ── CYAN TAG ── */
.tag.cyan-tag { background: rgba(34,211,238,0.12); color: var(--cyan); border: 1px solid rgba(34,211,238,0.3); }

/* ══════════════════════════════════════════════════════════════
   INSTALLER PAGE  (install.html)
   ══════════════════════════════════════════════════════════════ */

/* Compatibility banner */
.compat-banner {
  display: none;
  background: #2d0f0f;
  border: 1px solid var(--red);
  border-radius: var(--radius);
  color: var(--red);
  padding: 18px 24px;
  margin-bottom: 32px;
  font-size: 0.97rem;
  line-height: 1.6;
}
.compat-banner strong { font-size: 1.05rem; display: block; margin-bottom: 4px; }
.compat-banner.visible { display: block; }

/* Prerequisites grid */
.prereq-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 0 0 48px;
}
.prereq-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.prereq-num {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 12px;
}
.prereq-card h3 { font-size: 1rem; font-weight: 600; color: var(--text); margin: 0 0 8px; }
.prereq-card p   { font-size: 0.875rem; color: var(--text-muted); margin: 0; line-height: 1.6; }
.prereq-card a   { color: var(--accent); text-decoration: none; }
.prereq-card a:hover { text-decoration: underline; }

/* Installer panel */
.installer-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 680px;
  margin: 0 auto;
}

/* State visibility */
.inst-state { display: none; }
.inst-state.active { display: block; }

/* Connected status row */
.conn-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.95rem;
  color: var(--text);
}
.conn-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  box-shadow: 0 0 6px var(--green);
}

/* Source selector */
.source-options { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.source-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color 0.15s;
}
.source-option:hover { border-color: var(--cyan-dim); }
.source-option.selected { border-color: var(--cyan); background: #0d1e24; }
.source-option input[type="radio"] { margin-top: 2px; accent-color: var(--cyan); flex-shrink: 0; }
.source-option-body { flex: 1; }
.source-option-body strong { display: block; font-size: 0.93rem; color: var(--text); margin-bottom: 2px; }
.source-option-body span { font-size: 0.82rem; color: var(--text-muted); }
#fileInputWrap { display: none; margin-top: 10px; }
#fileInputWrap.visible { display: block; }
#localFileInput { font-size: 0.85rem; color: var(--text-muted); }

/* Version badge row */
.version-row { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; font-size: 0.9rem; color: var(--text-muted); }

/* Warning box */
.install-warning {
  background: #1e1900;
  border: 1px solid var(--yellow);
  border-radius: var(--radius);
  color: var(--yellow);
  font-size: 0.83rem;
  padding: 10px 14px;
  margin-top: 20px;
  line-height: 1.5;
}

/* Disconnect link */
.disconnect-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
  text-decoration: underline;
  background: none;
  border: none;
  padding: 0;
}
.disconnect-link:hover { color: var(--red); }

/* Progress bar (shared with packages page) */
.progress-wrap {
  background: var(--bg-alt);
  border-radius: 4px;
  overflow: hidden;
  height: 4px;
  margin-bottom: 16px;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--cyan);
  border-radius: 4px;
  transition: width 0.2s ease;
}

/* Log window */
.log-term {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 20px;
}
.log-term .term-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 8px 14px;
  background: #21262d;
  border-bottom: 1px solid var(--border);
}
.log-term .term-title { font-size: 0.78rem; color: var(--text-muted); margin-left: 4px; flex: 1; }
.log-body {
  background: var(--bg);
  height: 280px;
  overflow-y: scroll;
  padding: 12px 16px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.82rem;
  line-height: 1.65;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.log-body::-webkit-scrollbar { display: none; }
.log-line { display: block; }
.log-line.log-ok    { color: var(--green); }
.log-line.log-info  { color: var(--accent); }
.log-line.log-warn  { color: var(--yellow); }
.log-line.log-err   { color: var(--red); }
.log-line.log-muted { color: var(--text-muted); }

/* Install status text */
.install-status-text { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 16px; }

/* Done / Error icons */
.done-icon  { font-size: 3.5rem; color: var(--green); margin-bottom: 16px; line-height: 1; }
.error-icon { font-size: 3.5rem; color: var(--red);   margin-bottom: 16px; line-height: 1; }
.done-next  { margin: 20px 0 0; padding-left: 20px; color: var(--text-muted); font-size: 0.9rem; line-height: 1.9; }
.done-next li strong { color: var(--text); }
#errorMsg {
  color: var(--red);
  font-size: 0.9rem;
  background: #1a0808;
  border: 1px solid var(--red);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 24px;
  font-family: 'Courier New', Courier, monospace;
  word-break: break-word;
}

/* How it works */
.how-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  max-width: 680px;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.75;
}
.how-box h2 { font-size: 1.15rem; color: var(--text); margin: 0 0 14px; }
.how-box p   { margin: 0 0 12px; }
.how-box p:last-child { margin-bottom: 0; }
.how-box em  { color: var(--text-muted); font-style: normal; }

/* Spacing helpers */
.mt-btn  { margin-top: 8px; }
.gap-btn { display: flex; gap: 12px; flex-wrap: wrap; }

/* Panel headings (shared) */
.panel-h    { font-size: 1.25rem; font-weight: 600; color: var(--text); margin: 0 0 8px; }
.panel-sub  { font-size: 0.88rem; color: var(--text-muted); margin: 0 0 28px; }
.panel-hint { font-size: 0.82rem; color: var(--text-muted); margin-top: 10px; }

/* File transfer panel */
.transfer-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 40px;
  max-width: 680px;
  margin: 24px auto 0;
  display: none;
}
.transfer-panel.visible { display: block; }
.transfer-row { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.transfer-file-label {
  flex: 1; min-width: 160px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  padding: 8px 12px;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
}
.transfer-file-label:hover { border-color: var(--cyan-dim); }
.transfer-file-label input { display: none; }
#transferPath {
  flex: 1; min-width: 180px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 8px 12px;
  font-size: 0.85rem;
  font-family: 'Courier New', Courier, monospace;
}
#transferPath:focus { outline: none; border-color: var(--cyan-dim); }
.transfer-log {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 90px;
  overflow-y: auto;
  padding: 8px 12px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.80rem;
  line-height: 1.6;
  margin: 14px 0 16px;
  scrollbar-width: none;
}
.transfer-log::-webkit-scrollbar { display: none; }

/* Version picker */
.version-picker-wrap {
  max-width: 680px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.version-label { font-size: 0.85rem; color: var(--text-muted); white-space: nowrap; flex-shrink: 0; }
.version-select {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 9px 32px 9px 12px;
  font-size: 0.875rem;
  font-family: 'Courier New', Courier, monospace;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23888'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}
.version-select:focus { outline: none; border-color: var(--cyan-dim); }
.version-select option, .version-select optgroup { background: #161b22; color: var(--text); }

/* ══════════════════════════════════════════════════════════════
   PACKAGES PAGE  (packages.html)
   ══════════════════════════════════════════════════════════════ */

/* Package grid */
.pkg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 28px;
}
.pkg-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.2s, transform 0.2s;
}
.pkg-card:hover { border-color: var(--cyan-dim); transform: translateY(-2px); }
.pkg-card-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.pkg-card-name   { font-size: 1.1rem; font-weight: 700; color: var(--text); }
.pkg-card-ver {
  font-size: 0.78rem; font-weight: 600; color: var(--cyan);
  background: rgba(34,211,238,0.1);
  border: 1px solid rgba(34,211,238,0.25);
  padding: 2px 10px;
  border-radius: 12px;
  white-space: nowrap;
}
.pkg-card-author { font-size: 0.82rem; color: var(--text-muted); }
.pkg-card-desc   { font-size: 0.88rem; color: var(--text-muted); line-height: 1.5; flex: 1; }
.pkg-card-actions { display: flex; gap: 10px; margin-top: 6px; }
.pkg-install-btn {
  padding: 8px 20px;
  border-radius: var(--radius);
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--cyan-dim);
  color: #000;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s;
}
.pkg-install-btn:hover { opacity: 0.85; }
.pkg-install-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pkg-cli-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 10px;
  display: flex;
  align-items: center;
}

/* Connect bar */
.connect-bar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.connect-bar-left { display: flex; align-items: center; gap: 14px; }
.connect-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.connect-dot.off { background: var(--text-muted); opacity: 0.4; }
.connect-dot.on  { background: var(--green); box-shadow: 0 0 6px var(--green); }
.connect-status  { font-size: 0.9rem; color: var(--text-muted); }
.connect-status.connected { color: var(--green); }

/* Transfer overlay */
.xfer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
}
.xfer-overlay.visible { display: flex; }
.xfer-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 36px;
  width: 560px;
  max-width: 92vw;
  max-height: 80vh;
  overflow-y: auto;
}
.xfer-panel h3 { font-size: 1.1rem; font-weight: 700; color: var(--text); margin: 0 0 6px; }
.xfer-panel-sub { font-size: 0.85rem; color: var(--text-muted); margin: 0 0 18px; }
.xfer-progress-wrap {
  background: var(--bg-alt);
  border-radius: 4px;
  overflow: hidden;
  height: 4px;
  margin-bottom: 14px;
}
.xfer-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--cyan);
  border-radius: 4px;
  transition: width 0.15s ease;
}
.xfer-log {
  background: #010409;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 200px;
  overflow-y: auto;
  padding: 12px 16px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.80rem;
  line-height: 1.7;
  scrollbar-width: none;
  margin-bottom: 18px;
}
.xfer-log::-webkit-scrollbar { display: none; }
.xfer-log-line { display: block; }
.xfer-log-ok   { color: var(--green); }
.xfer-log-info { color: var(--accent); }
.xfer-log-warn { color: var(--yellow); }
.xfer-log-err  { color: var(--red); }
.xfer-log-dim  { color: var(--text-muted); }
.xfer-close-btn {
  padding: 8px 24px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--bg-alt);
  cursor: pointer;
}
.xfer-close-btn:hover { border-color: var(--cyan-dim); color: var(--cyan); }

/* Empty / loading / error states */
.pkg-loading, .pkg-empty, .pkg-error {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.pkg-error { color: var(--red); }

/* Serial note */
.serial-note { font-size: 0.82rem; color: var(--text-muted); margin-top: 8px; line-height: 1.5; }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 680px) {
  .prereq-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links { gap: 16px; }
  .feature-grid { grid-template-columns: 1fr; }
  .cmd-grid { grid-template-columns: 1fr; }
  .docs-grid { grid-template-columns: 1fr; }
  .screenshot-grid { grid-template-columns: 1fr; }
  .pkg-grid { grid-template-columns: 1fr; }
  .step { flex-direction: column; }
  .footer-row { flex-direction: column; }
  .hero h1 { font-size: 1.9rem; }
  .connect-bar { flex-direction: column; align-items: stretch; }
}