/* ScopeGate landing — dark, technical, dependency-free. */
:root {
  --bg: #0f1420;
  --bg-alt: #0b0f1a;
  --panel: #171e2e;
  --border: #28324a;
  --fg: #dbe2f1;
  --dim: #8b96b0;
  --accent: #5b9dff;
  --accent-soft: rgba(91, 157, 255, 0.12);
  --ok: #51cf8a;
  --mono: ui-monospace, "Cascadia Code", Consolas, Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.6 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 1.25em; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: 0.92em; }
p code, li code, td code, summary code {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.05em 0.35em;
}
.dim { color: var(--dim); }
.accent { color: var(--accent); }

/* ---------------- nav ---------------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 20, 32, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 1em; min-height: 56px; }
.brand {
  display: flex; align-items: center; gap: 0.5em;
  color: var(--fg); font-weight: 700; font-size: 1.05em;
}
.brand:hover { text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 1.2em; margin-left: auto; }
.nav-links a { color: var(--dim); font-size: 0.95em; }
.nav-links a:hover { color: var(--fg); text-decoration: none; }
.nav-links a.btn { color: #fff; }
.nav-toggle { display: none; }
.nav-burger { display: none; cursor: pointer; font-size: 1.3em; color: var(--fg); }

/* ---------------- buttons / pills ---------------- */
.btn {
  display: inline-block;
  background: var(--accent); color: #fff;
  border: 0; border-radius: 8px;
  padding: 0.6em 1.3em;
  font: inherit; font-weight: 600;
  cursor: pointer;
}
.btn:hover { text-decoration: none; filter: brightness(1.1); }
.btn-small { padding: 0.35em 0.9em; font-size: 0.9em; }
.btn-secondary {
  background: transparent; color: var(--fg);
  border: 1px solid var(--border);
}
.pill {
  display: inline-block;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid rgba(91, 157, 255, 0.35);
  border-radius: 999px;
  padding: 0.25em 0.9em;
  font-size: 0.85em; font-weight: 600;
}
.pill-dim { background: var(--bg-alt); color: var(--dim); border-color: var(--border); }

/* ---------------- hero ---------------- */
.hero { padding: 5.5em 0 4em; text-align: center; }
.hero h1 {
  font-size: clamp(2em, 5.2vw, 3.4em);
  line-height: 1.12;
  margin: 0.5em 0 0.4em;
  letter-spacing: -0.02em;
}
.lede {
  max-width: 46em; margin: 0 auto 1.8em;
  color: var(--dim); font-size: 1.12em;
}
.install {
  display: flex; align-items: center; justify-content: center;
  gap: 0.6em; flex-wrap: wrap;
}
.install code {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65em 1.1em;
  font-size: 1em;
  color: var(--ok);
}
.install-alt { color: var(--dim); font-size: 0.95em; margin-top: 1em; }
.hero-links { margin-top: 1.6em; color: var(--dim); }

/* ---------------- sections ---------------- */
.section { padding: 4em 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 {
  font-size: clamp(1.5em, 3.2vw, 2.1em);
  letter-spacing: -0.01em;
  margin: 0 0 0.4em;
}
.section-lede { color: var(--dim); max-width: 48em; margin: 0 0 1.8em; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1em; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1em; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.3em 1.4em;
}
.card h3 { margin: 0 0 0.5em; font-size: 1.05em; }
.card p { margin: 0; color: var(--dim); }
.card p + p { margin-top: 0.6em; }
.num {
  color: var(--accent); font-family: var(--mono);
  font-size: 0.85em; margin-right: 0.4em;
}
.card-featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }

/* ---------------- tables ---------------- */
.table-wrap { overflow-x: auto; margin-top: 1.6em; }
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 0.6em 0.8em;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th { color: var(--dim); font-weight: 600; font-size: 0.9em; }
td { color: var(--fg); }

/* ---------------- architecture ---------------- */
.arch {
  margin-top: 2em;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2em 1.4em;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.9em;
  line-height: 1.7;
  color: var(--ok);
}
.section-alt .arch { background: var(--panel); }

/* ---------------- pricing ---------------- */
.pricing .card { display: flex; flex-direction: column; }
.price { font-size: 2em; font-weight: 700; color: var(--fg) !important; margin: 0.2em 0 0.6em !important; }
.price-unit { font-size: 0.45em; color: var(--dim); font-weight: 400; }
.pricing ul { margin: 0 0 1.2em; padding-left: 1.2em; color: var(--dim); flex: 1; }
.pricing li { margin: 0.35em 0; }
.pricing p:last-child { margin-top: auto; }
.cta-row { margin-top: 2em; }

/* ---------------- security ---------------- */
.security-list { margin: 0; padding-left: 1.4em; }
.security-list li { margin: 0.8em 0; color: var(--dim); }
.security-list strong { color: var(--fg); }

/* ---------------- faq ---------------- */
details {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9em 1.2em;
  margin-bottom: 0.7em;
}
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--dim); margin: 0.7em 0 0.2em; }

/* ---------------- footer ---------------- */
.footer { border-top: 1px solid var(--border); padding: 2.5em 0; }
.footer-inner {
  display: flex; justify-content: space-between;
  gap: 2em; flex-wrap: wrap;
}
.footer p { margin: 0.3em 0 0; }
.footer-links { display: flex; gap: 1.4em; flex-wrap: wrap; align-items: center; }
.footer-links a { color: var(--dim); }
.footer-links a:hover { color: var(--fg); }

/* ---------------- docs (prose pages) ---------------- */
.doc { padding: 2.5em 1.25em 4em; max-width: 860px; }
.breadcrumb { color: var(--dim); font-size: 0.9em; margin-bottom: 1.5em; }
.breadcrumb .sep { margin: 0 0.5em; color: var(--border); }
.doc article h1 { font-size: 1.9em; margin: 0 0 0.6em; letter-spacing: -0.01em; }
.doc article h2 { font-size: 1.35em; margin: 1.8em 0 0.5em; }
.doc article h3 { font-size: 1.1em; margin: 1.5em 0 0.4em; }
.doc article h4 { font-size: 1em; margin: 1.2em 0 0.3em; }
.doc article p { color: var(--dim); margin: 0.7em 0; }
.doc article p code, .doc article li code, .doc article td code, .doc article blockquote code {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.05em 0.35em;
}
.doc article ul, .doc article ol { color: var(--dim); padding-left: 1.4em; }
.doc article li { margin: 0.35em 0; }
.doc article strong { color: var(--fg); }
.doc article a { word-break: break-word; }
.doc article pre.code {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1em 1.2em;
  overflow-x: auto;
  position: relative;
  font-size: 0.88em;
  line-height: 1.6;
}
.doc article pre.code[data-lang]::before {
  content: attr(data-lang);
  position: absolute; top: 0.4em; right: 0.7em;
  color: var(--dim); font-size: 0.75em; text-transform: uppercase;
}
.doc article pre.code code { font-family: var(--mono); color: var(--fg); }
.doc article table { margin: 1em 0; }
.doc article blockquote {
  margin: 1em 0;
  border-left: 3px solid var(--accent);
  padding: 0.3em 0 0.3em 1em;
  color: var(--dim);
}
.doc article hr { border: 0; border-top: 1px solid var(--border); margin: 2em 0; }
.prevnext {
  display: flex; justify-content: space-between;
  margin-top: 3em; padding-top: 1.2em;
  border-top: 1px solid var(--border);
}
.prevnext a { color: var(--accent); }

/* ---------------- facts row (What is ScopeGate) ---------------- */
.facts-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.8em;
  margin-top: 1.6em;
}
.fact {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8em 1em;
  display: flex; flex-direction: column; gap: 0.15em;
}
.fact-num { font-size: 1.3em; font-weight: 700; color: var(--accent); font-family: var(--mono); }
.fact-lbl { color: var(--dim); font-size: 0.82em; }

/* ---------------- before/after toggle ---------------- */
.ba { margin-top: 1.6em; }
.ba-switch { display: inline-flex; gap: 0.3em; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 999px; padding: 0.25em; }
.ba-btn {
  background: transparent; color: var(--dim);
  border: 0; border-radius: 999px;
  padding: 0.4em 1.1em; font: inherit; font-weight: 600;
  cursor: pointer;
}
.ba-btn.active { background: var(--accent); color: #fff; }
.ba-panel { margin-top: 1em; }
.ba-line { margin: 0.5em 0; color: var(--dim); }
.ba-tag {
  display: inline-block; min-width: 6.5em;
  font-family: var(--mono); font-size: 0.78em; font-weight: 700;
  border-radius: 6px; padding: 0.15em 0.5em; margin-right: 0.6em;
  text-align: center;
}
.ba-tag.bad { background: rgba(255,107,107,.14); color: var(--danger); border: 1px solid rgba(255,107,107,.4); }
.ba-tag.good { background: rgba(81,207,138,.14); color: var(--ok); border: 1px solid rgba(81,207,138,.4); }
.ba-enter { animation: ba-in .35s ease; }
@keyframes ba-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------------- flow diagram ---------------- */
.flow { margin-top: 2em; }
.flow svg { width: 100%; height: auto; display: block; }
.fz { fill: var(--panel); stroke: var(--border); stroke-width: 1.5; }
.fz-gate { stroke: var(--accent); }
.fz-title { fill: var(--fg); font: 600 15px -apple-system, "Segoe UI", Roboto, sans-serif; }
.fz-sub { fill: var(--dim); font: 12px -apple-system, "Segoe UI", Roboto, sans-serif; }
.vault { fill: var(--bg-alt); stroke: var(--ok); stroke-width: 1.5; }
.vault-txt { fill: var(--ok); font: 600 12px ui-monospace, Consolas, monospace; }
.vault-sub { fill: var(--dim); font: 10.5px -apple-system, "Segoe UI", Roboto, sans-serif; }
.lane { stroke: var(--border); stroke-width: 2; stroke-dasharray: 6 5; }
.lane-lbl { fill: var(--dim); font: 11px ui-monospace, Consolas, monospace; }
.pkt-req { fill: var(--accent); animation: req-move 3.2s linear infinite; }
.pkt-cred { fill: var(--ok); animation: cred-move 3.2s linear infinite; animation-delay: 1.6s; }
.pkt-secret { fill: var(--danger); animation: secret-block 2.4s ease-in-out infinite; }
.blocked-lbl { fill: var(--danger); font: 10.5px ui-monospace, Consolas, monospace; }
.flow-caption { text-align: center; margin-top: 0.4em; font-size: 0.9em; }
@keyframes req-move {
  0% { transform: translateX(0); opacity: 0; }
  12% { opacity: 1; }
  85% { transform: translateX(132px); opacity: 1; }
  100% { transform: translateX(140px); opacity: 0; }
}
@keyframes cred-move {
  0% { transform: translateX(0); opacity: 0; }
  12% { opacity: 1; }
  85% { transform: translateX(132px); opacity: 1; }
  100% { transform: translateX(140px); opacity: 0; }
}
@keyframes secret-block {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-16px); }
}
.arch-details { margin-top: 1em; }
.arch-details summary { color: var(--dim); cursor: pointer; font-size: 0.9em; }

/* ---------------- terminal demo ---------------- */
.term {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.term-bar {
  display: flex; align-items: center; gap: 0.45em;
  padding: 0.55em 0.9em;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.term-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.term-dot:nth-child(1) { background: #ff5f57; }
.term-dot:nth-child(2) { background: #febc2e; }
.term-dot:nth-child(3) { background: #28c840; }
.term-title { color: var(--dim); font-size: 0.8em; margin-left: 0.5em; flex: 1; }
.term-replay {
  background: transparent; color: var(--dim);
  border: 1px solid var(--border); border-radius: 6px;
  font: inherit; font-size: 0.78em;
  padding: 0.2em 0.6em; cursor: pointer;
}
.term-replay:hover { color: var(--fg); }
.term-body {
  margin: 0; padding: 1em 1.2em;
  font-family: var(--mono); font-size: 0.82em; line-height: 1.65;
  color: var(--fg);
  white-space: pre-wrap; word-break: break-word;
  min-height: 22em;
  overflow-x: auto;
}
.term-cursor { color: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------------- TTL demo ---------------- */
.ttl-demo { display: flex; flex-direction: column; }
.ttl-grant { font-size: 1.05em; color: var(--ok); margin: 0.6em 0; }
.ttl-bar {
  height: 10px; border-radius: 999px;
  background: var(--bg-alt); border: 1px solid var(--border);
  overflow: hidden;
}
.ttl-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--ok), var(--accent));
  transition: width 1s linear;
}
.ttl-bar-fill.low { background: linear-gradient(90deg, var(--danger), var(--warn)); }
.ttl-meta { display: flex; justify-content: space-between; align-items: baseline; margin-top: 0.5em; }
.ttl-meta .countdown { font-size: 1.4em; font-weight: 700; }
.ttl-note { margin-top: auto; padding-top: 0.8em; font-size: 0.88em; }

/* ---------------- health badge ---------------- */
.pill-health { margin-top: 0.8em; display: inline-flex; align-items: center; gap: 0.5em; }
.health-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warn); display: inline-block; }
.health-dot.on { background: var(--ok); }
.health-dot.off { background: var(--danger); }

/* ---------------- reduced motion ---------------- */
@media (prefers-reduced-motion: reduce) {
  .pkt-req, .pkt-cred, .pkt-secret, .term-cursor, .ba-enter { animation: none !important; }
  .ttl-bar-fill { transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------------- responsive ---------------- */@media (max-width: 860px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .hero { padding: 3.5em 0 2.5em; }
  .section { padding: 2.8em 0; }
  .nav-burger { display: block; margin-left: auto; }
  .nav-links {
    display: none;
    position: absolute; top: 56px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 1em 1.25em; gap: 0.9em;
  }
  .nav-toggle:checked ~ .nav-links { display: flex; }
}