/* ============================================================
   sshman — landing + docs
   Style: Dark Mode (OLED), single-column, JetBrains Mono.
   Tokens follow the generated design system.
   ============================================================ */

:root {
  --color-primary: #1e293b;
  --color-on-primary: #ffffff;
  --color-secondary: #334155;
  --color-accent: #22c55e;
  --color-accent-strong: #16a34a;
  --color-background: #0f172a;
  --color-foreground: #f8fafc;
  --color-muted-surface: #1a2336;
  --color-muted: #94a3b8;
  --color-border: #2a3650;
  --color-border-strong: #475569;
  --color-destructive: #ef4444;

  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --radius: 12px;
  --radius-sm: 8px;
  --maxw: 1080px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 72px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --z-header: 100;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Subtle backdrop glow, OLED-friendly */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 50% at 50% -10%, rgba(34, 197, 94, 0.10), transparent 70%),
    radial-gradient(50% 40% at 90% 0%, rgba(51, 65, 85, 0.25), transparent 70%);
  pointer-events: none;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--space-4);
}
.container.narrow { max-width: 760px; }

code, kbd, pre, .term-body { font-family: var(--font-mono); }

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: var(--space-2);
  background: var(--color-accent);
  color: #052e16;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-weight: 700;
  z-index: 1000;
}
.skip-link:focus { left: var(--space-3); }

/* ---------------- Header ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(15, 23, 42, 0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-foreground);
}
.brand:hover { text-decoration: none; }
.brand-mark { display: block; border-radius: 6px; }

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav-link {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}
.nav-link:hover { color: var(--color-foreground); text-decoration: none; background: var(--color-muted-surface); }
.nav-link.is-active { color: var(--color-foreground); }
.nav-link.is-active::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 4px;
  border-radius: 2px;
  background: var(--color-accent);
}
.nav-cta { margin-left: var(--space-2); }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 7px 14px; font-size: 0.88rem; }
.btn-accent { background: var(--color-accent); color: #052e16; }
.btn-accent:hover { background: var(--color-accent-strong); }
.btn-ghost { background: transparent; color: var(--color-foreground); border-color: var(--color-border-strong); }
.btn-ghost:hover { background: var(--color-muted-surface); }

/* ---------------- Views ---------------- */
.view { display: none; }
.view.is-active { display: block; }
#home.is-active ~ .view-extra,
.view-extra { display: none; }
body[data-view="home"] .view-extra { display: block; }

/* ---------------- Hero ---------------- */
.hero {
  text-align: center;
  padding-block: var(--space-7) var(--space-5);
  max-width: 820px;
  margin-inline: auto;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-muted);
  background: var(--color-muted-surface);
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: 999px;
  margin: 0 0 var(--space-4);
}
.badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent);
}
h1 {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-4);
}
h1 .accent { color: var(--color-accent); text-shadow: 0 0 24px rgba(34, 197, 94, 0.35); }
.lede {
  font-size: 1.12rem;
  color: #cbd5e1;
  max-width: 60ch;
  margin: 0 auto var(--space-5);
}

/* Install command box (primary CTA) */
.install { max-width: 720px; margin-inline: auto; }
.install-box {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: #0b1120;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  padding: 14px 14px 14px 18px;
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.06), 0 20px 50px -20px rgba(0, 0, 0, 0.8);
  text-align: left;
}
.install-box .prompt { color: var(--color-accent); font-family: var(--font-mono); font-weight: 700; }
.install-box code {
  flex: 1;
  font-size: 0.92rem;
  color: var(--color-foreground);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: thin;
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  background: var(--color-muted-surface);
  color: var(--color-foreground);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}
.copy-btn:hover { background: var(--color-secondary); }
.copy-btn svg { stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.copy-btn .icon-check { display: none; }
.copy-btn.copied { color: var(--color-accent); border-color: var(--color-accent); }
.copy-btn.copied .icon-copy { display: none; }
.copy-btn.copied .icon-check { display: block; }
.install-sub { font-size: 0.85rem; color: var(--color-muted); margin-top: var(--space-3); }
.install-sub code { font-size: 0.8rem; color: #cbd5e1; }

/* ---------------- Terminal preview ---------------- */
.terminal {
  max-width: 720px;
  margin: var(--space-6) auto 0;
  background: #0b1120;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, 0.9);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background: #111a2e;
  border-bottom: 1px solid var(--color-border);
}
.term-dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.term-dot.r { background: #ef4444; }
.term-dot.y { background: #eab308; }
.term-dot.g { background: #22c55e; }
.term-title { margin-left: auto; font-family: var(--font-mono); font-size: 0.78rem; color: var(--color-muted); }
.term-body {
  margin: 0;
  padding: var(--space-4) var(--space-4) var(--space-5);
  font-size: 0.9rem;
  line-height: 1.7;
  color: #cbd5e1;
  overflow-x: auto;
}
.term-body .t-title { color: #818cf8; font-weight: 700; }
.term-body .tab {
  color: var(--color-muted);
  padding: 1px 6px;
}
.term-body .tab-active {
  background: var(--color-accent);
  color: #052e16;
  font-weight: 700;
  border-radius: 4px;
  padding: 1px 6px;
}
.term-body .sel { color: var(--color-foreground); font-weight: 700; }
.term-body .star { color: #fbbf24; }
.term-body .muted { color: #64748b; }

.star { color: #fbbf24; }

/* ---------------- Sections ---------------- */
.view-extra { padding-block: var(--space-6); border-top: 1px solid var(--color-border); }
.section-title {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  text-align: center;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-6);
}

/* Features grid */
.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.card {
  background: var(--color-muted-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.card:hover { border-color: var(--color-border-strong); transform: translateY(-3px); }
.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(34, 197, 94, 0.12);
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.card-icon svg { stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-family: var(--font-mono); font-size: 1.05rem; margin: 0 0 var(--space-2); }
.card p { margin: 0; color: #cbd5e1; font-size: 0.95rem; }
.card code { background: #0b1120; padding: 1px 6px; border-radius: 5px; font-size: 0.85em; color: #e2e8f0; }

/* Steps */
.steps { list-style: none; margin: 0 0 var(--space-5); padding: 0; display: grid; gap: var(--space-4); }
.steps li { display: flex; gap: var(--space-3); align-items: flex-start; }
.step-n {
  flex-shrink: 0;
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--color-accent);
  color: #052e16;
  font-family: var(--font-mono);
  font-weight: 800;
}
.steps h3 { font-family: var(--font-mono); margin: 4px 0 var(--space-2); font-size: 1.05rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: center; }

/* Code blocks */
.codeblock {
  background: #0b1120;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  overflow-x: auto;
  margin: var(--space-2) 0;
}
.codeblock code { font-size: 0.9rem; color: #e2e8f0; white-space: pre; }
.muted { color: var(--color-muted); }

/* ---------------- Docs ---------------- */
.docs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-6) var(--space-7);
  align-items: start;
}
.docs-toc {
  position: sticky;
  top: 84px;
}
.toc-head {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin: 0 0 var(--space-3);
}
.docs-toc nav { display: flex; flex-direction: column; gap: 2px; }
.toc-link {
  color: var(--color-muted);
  font-size: 0.9rem;
  padding: 6px 10px;
  border-radius: 6px;
  border-left: 2px solid transparent;
}
.toc-link:hover { color: var(--color-foreground); background: var(--color-muted-surface); text-decoration: none; }
.toc-link.active { color: var(--color-accent); border-left-color: var(--color-accent); }

.docs-content { min-width: 0; }
.docs-content h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); margin-bottom: var(--space-3); }
.doc-block { padding-block: var(--space-4); scroll-margin-top: 84px; border-top: 1px solid var(--color-border); }
.doc-block:first-of-type { border-top: 0; }
.doc-block h2 {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  margin: var(--space-2) 0 var(--space-3);
}
.doc-block p { color: #cbd5e1; }
.doc-block code { background: #0b1120; padding: 1px 6px; border-radius: 5px; font-size: 0.88em; color: #e2e8f0; }

kbd {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--color-secondary);
  border: 1px solid var(--color-border-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 6px;
  color: var(--color-foreground);
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-3) 0;
  font-size: 0.92rem;
}
.doc-table th, .doc-table td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
}
.doc-table th {
  font-family: var(--font-mono);
  color: var(--color-foreground);
  background: var(--color-muted-surface);
}
.doc-table td { color: #cbd5e1; }
.doc-table tr:last-child td { border-bottom: 0; }

/* ---------------- Footer ---------------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-5);
  margin-top: var(--space-6);
}
.footer-inner { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); justify-content: space-between; align-items: center; }
.footer-inner p { margin: 0; }
.brand-mini { font-family: var(--font-mono); font-weight: 800; color: var(--color-foreground); }
.site-footer code { background: #0b1120; padding: 1px 6px; border-radius: 5px; font-size: 0.85em; color: #cbd5e1; }

/* ---------------- Responsive ---------------- */
@media (max-width: 860px) {
  .docs-layout { grid-template-columns: 1fr; gap: var(--space-4); }
  .docs-toc {
    position: static;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-3);
    background: var(--color-muted-surface);
  }
  .docs-toc nav { flex-flow: row wrap; }
}

@media (max-width: 560px) {
  .header-inner { height: 56px; }
  .nav-link { padding: var(--space-2); }
  .install-box { flex-wrap: wrap; }
  .install-box code { white-space: normal; word-break: break-all; flex-basis: 100%; }
  .copy-btn { margin-left: auto; }
  .hero { padding-block: var(--space-6) var(--space-4); }
}

/* ---------------- Reduced motion ---------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .card:hover { transform: none; }
}