/* ThinkForge launch page — dark, VS Code aesthetic, square cards, monospace-forward. */

:root {
  color-scheme: dark;
  --bg: #0b0b0d;
  --bg-2: #0e0e11;
  --panel: #141418;
  --panel-2: #191920;
  --border: #2a2a30;
  --border-soft: #202026;
  --text: #e8e8ea;
  --heading: #f5f5f7;
  --muted: #9a9aa3;
  --faint: #6b6b73;

  --amber: #e2a34a;
  --amber-hover: #eeb45f;
  --amber-ink: #1a1206;
  --green: #3fb950;
  --green-dim: #111a13;
  --red: #f0503c;
  --red-dim: #191113;

  --mono: ui-monospace, SFMono-Regular, "Cascadia Code", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --maxw: 1160px;
  --gap: 16px;
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
  scroll-behavior: smooth;
}

[id] {
  scroll-margin-top: 96px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--amber);
  text-decoration: none;
}

code,
pre {
  font-family: var(--mono);
}

pre {
  margin: 0;
  white-space: pre;
  overflow-x: auto;
}

p code,
li code,
strong code {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  padding: 1px 6px;
  color: #d7d7db;
  font-size: 0.88em;
}

h1,
h2,
h3,
h4 {
  color: var(--heading);
  margin: 0 0 14px;
  letter-spacing: -0.01em;
  line-height: 1.08;
  text-wrap: balance;
}

h1 { font-size: clamp(2.4rem, 6vw, 4.1rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
h4 { font-size: 1.05rem; font-weight: 700; }

p { margin: 0 0 14px; color: var(--muted); text-wrap: pretty; }

.eyebrow {
  margin: 0 0 16px;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.skip-link {
  position: fixed;
  left: 12px;
  top: 12px;
  z-index: 40;
  transform: translateY(-160%);
  background: var(--amber);
  color: var(--amber-ink);
  padding: 10px 14px;
  font-weight: 700;
  transition: transform 160ms ease;
}
.skip-link:focus { transform: translateY(0); }

.announce {
  text-align: center;
  padding: 9px 16px;
  background: rgba(226, 163, 74, 0.1);
  border-bottom: 1px solid rgba(226, 163, 74, 0.28);
  color: var(--amber);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- layout shells ---------- */
.site-header,
main,
.site-footer {
  width: min(var(--maxw), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 0;
  background: rgba(11, 11, 13, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  width: 100%;
}
.site-header > * { }
.site-header {
  padding-left: max(20px, calc((100% - var(--maxw)) / 2));
  padding-right: max(20px, calc((100% - var(--maxw)) / 2));
}

.brand { display: inline-flex; align-items: center; }
.brand-logo { height: 60px; width: auto; display: block; }

nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
}
nav a {
  color: var(--muted);
  font-size: 14px;
  padding: 8px 12px;
  border: 1px solid transparent;
  transition: color 150ms ease, background 150ms ease, border-color 150ms ease;
}
nav a:hover { color: var(--text); background: var(--panel); border-color: var(--border); }

.header-cta { display: flex; }

/* ---------- buttons ---------- */
.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--border);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease, transform 120ms ease;
}
.button:active { transform: translateY(1px); }

.button.primary {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--amber-ink);
}
.button.primary:hover { background: var(--amber-hover); border-color: var(--amber-hover); }

.button.ghost {
  background: var(--panel);
  color: var(--text);
}
.button.ghost:hover { border-color: var(--faint); }

.button.soon {
  background: var(--panel);
  color: var(--muted);
  border-style: dashed;
  cursor: not-allowed;
}
.button.soon:active { transform: none; }
.soon-tag {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--faint);
  border: 1px solid var(--border);
  padding: 1px 5px;
}

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 48px;
  align-items: center;
  padding: 72px 0 84px;
}
.hero-copy { min-width: 0; }
.lede { font-size: 19px; color: var(--muted); max-width: 60ch; }
.lede strong { color: var(--text); }

.install {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: stretch;
  border: 1px solid var(--border);
  background: var(--panel);
  margin: 26px 0 22px;
  max-width: 520px;
}
.install-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  background: var(--panel-2);
  border-right: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
}
.dot { width: 8px; height: 8px; display: inline-block; }
.dot-amber { background: var(--amber); }
.install-code {
  padding: 14px 16px;
  color: #dfe1e6;
  font-size: 14px;
  line-height: 1.55;
  min-width: 0;
}
.copy-button {
  border: 0;
  border-left: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--amber);
  font-family: var(--mono);
  font-size: 13px;
  padding: 0 16px;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
}
.copy-button:hover { background: var(--amber); color: var(--amber-ink); }
.copy-button.copied { background: var(--green); color: #05130a; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 10px 0 26px;
}
.hero-actions.center { justify-content: center; }
.hero-actions .button {
  min-width: 172px;
  min-height: 48px;
  padding: 0 24px;
  font-size: 15px;
}

.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.chips li {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 6px 10px;
}
.chips.center { justify-content: center; }
.chips.highlight { margin: 24px 0 20px; }
.chips.highlight li {
  color: var(--amber);
  border-color: rgba(226, 163, 74, 0.4);
  background: rgba(226, 163, 74, 0.08);
}
.chips.platforms li {
  color: var(--text);
  padding-left: 24px;
  position: relative;
}
.chips.platforms li::before {
  content: "▸";
  position: absolute;
  left: 9px;
  color: var(--green);
}

/* ---------- editor / diff panel ---------- */
.panel {
  border: 1px solid var(--border);
  background: var(--panel);
}
.editor { min-width: 0; }
.editor-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
}
.editor-file { color: var(--amber); }
.editor-meta { color: var(--faint); }
.diff {
  padding: 14px 0;
  font-size: 13.5px;
  line-height: 1.7;
}
.diff code { display: block; }
.diff .ln { display: inline-block; width: 40px; text-align: right; padding-right: 16px; color: var(--faint); user-select: none; }
.diff .ctx { color: #b9b9c2; }
.diff .del { color: var(--red); background: var(--red-dim); display: inline-block; width: 100%; }
.diff .add { color: var(--green); background: var(--green-dim); display: inline-block; width: 100%; }
.editor-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  background: var(--panel-2);
}
.tool {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 4px 8px;
}
.tool.active { color: var(--amber-ink); background: var(--amber); border-color: var(--amber); }

/* ---------- sections ---------- */
.section {
  padding: 72px 0;
  border-top: 1px solid var(--border-soft);
}
.section-head { max-width: 720px; margin-bottom: 36px; }
.section-lede { font-size: 18px; }

/* ---------- grids & cards ---------- */
.grid { display: grid; gap: var(--gap); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 22px;
}
.card h3 { margin-bottom: 8px; }
.card p { margin: 0; font-size: 15px; }
.card.feature { border-top: 2px solid var(--border); }
.card.feature:hover { border-top-color: var(--amber); }

/* ---------- solution flow ---------- */
.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
}
.flow li {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 22px;
}
.flow strong { display: block; color: var(--heading); margin-bottom: 6px; font-size: 1.02rem; }
.flow p { margin: 0; font-size: 14px; }
.step-n {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--amber);
  border: 1px solid var(--border);
  padding: 4px 8px;
  margin-bottom: 14px;
}

/* ---------- trust ---------- */
.trust .card ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.trust .card li { position: relative; padding-left: 24px; color: var(--text); font-size: 15px; }
.trust .card li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 8px;
}
.card.is { border-left: 2px solid var(--green); }
.card.isnot { border-left: 2px solid var(--red); }
.card.is li::before { background: var(--green); }
.card.isnot li::before { background: var(--red); }
.card.is h3, .card.isnot h3 { display: flex; align-items: center; gap: 10px; }
.mark { font-family: var(--mono); font-weight: 700; }
.mark.ok { color: var(--green); }
.mark.no { color: var(--red); }

/* ---------- workflow diagram ---------- */
.diagram { padding: 24px; margin-bottom: var(--gap); }
.diagram svg { width: 100%; height: auto; display: block; }
.node rect { fill: var(--panel-2); stroke: var(--border); stroke-width: 1; }
.node-t { fill: var(--heading); font-family: var(--sans); font-size: 20px; font-weight: 700; text-anchor: middle; }
.node-s { fill: var(--muted); font-family: var(--mono); font-size: 12px; text-anchor: middle; }
.edge { fill: var(--amber); font-family: var(--mono); font-size: 12px; text-anchor: middle; }
.edge.return { fill: var(--green); }
.tunnel { fill: var(--faint); font-family: var(--mono); font-size: 12px; text-anchor: middle; }

.workflow-steps .ministep {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 18px;
}
.ministep p { margin: 0; font-size: 14px; }

/* ---------- setup ---------- */
.setup-grid { align-items: start; }
.steps { display: grid; gap: 10px; }
.setup-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 18px;
}
.setup-step .step-n { margin: 0; align-self: start; }
.setup-step strong { display: block; color: var(--heading); margin-bottom: 8px; }
.setup-step p { margin: 0; font-size: 14px; }

.cmd {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border);
  background: var(--bg-2);
  margin-top: 8px;
}
.cmd code {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  color: #dfe1e6;
  font-size: 13px;
  overflow-x: auto;
  white-space: nowrap;
}
.cmd .copy-button { border-left: 1px solid var(--border); }

.tunnels { display: grid; gap: 10px; align-content: start; }
.tunnels-title { margin: 0 0 4px; color: var(--faint); font-family: var(--mono); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.tunnel-card h4 { margin: 10px 0 8px; }
.tunnel-card p { font-size: 14px; margin-bottom: 12px; }
.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 3px 8px;
}
.tag-amber { color: var(--amber); border-color: var(--amber); }

/* ---------- safety ---------- */
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.checklist li { position: relative; padding-left: 26px; font-size: 15px; color: var(--text); }
.checklist li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  color: var(--green);
  font-family: var(--mono);
  font-weight: 700;
}
.checklist.block li::before { content: "✕"; color: var(--red); }

/* ---------- pricing ---------- */
.pricing-grid { align-items: stretch; }
.price-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
}
.price-card.featured {
  border-color: var(--amber);
  box-shadow: inset 0 2px 0 var(--amber);
}
.badge {
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--amber-ink);
  background: var(--amber);
  padding: 4px 8px;
  margin-bottom: 14px;
}
.avail {
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--faint);
  border: 1px solid var(--border);
  padding: 4px 8px;
  margin-bottom: 14px;
}
.plan-name { margin-bottom: 10px; font-size: 1.25rem; }
.price { margin: 0 0 4px; }
.price-amount {
  color: var(--heading);
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.price-unit { color: var(--muted); font-size: 15px; }
.price-note { margin: 0 0 18px; color: var(--faint); font-family: var(--mono); font-size: 13px; }
.plan-features {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
  flex: 1;
}
.plan-features li { position: relative; padding-left: 24px; font-size: 15px; color: var(--text); }
.plan-features li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  color: var(--green);
  font-family: var(--mono);
  font-weight: 700;
}
.price-card .button { width: 100%; margin-top: auto; }

.price-team {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: var(--gap);
  padding: 24px 28px;
}
.price-team .plan-name { margin: 8px 0 6px; }
.price-team p { margin: 0; font-size: 15px; max-width: 70ch; }
.price-team .button { width: auto; min-width: 160px; }

/* ---------- faq ---------- */
.faq { display: grid; gap: 10px; }
.faq details {
  border: 1px solid var(--border);
  background: var(--panel);
}
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 48px 16px 18px;
  position: relative;
  color: var(--heading);
  font-weight: 700;
  font-size: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 18px; top: 50%;
  transform: translateY(-50%);
  color: var(--amber);
  font-family: var(--mono);
  font-size: 20px;
}
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid var(--border); }
.faq p { margin: 0; padding: 16px 18px; font-size: 15px; }

/* ---------- setup flow (wraps 5 steps) ---------- */
.setup-flow { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

/* ---------- security fineprint ---------- */
.fineprint {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--faint);
  max-width: 80ch;
}

/* ---------- final cta ---------- */
.final-cta { border-top: 1px solid var(--border); }
.cta-panel { padding: 48px; text-align: center; }
.cta-logo { height: 92px; width: auto; margin: 0 auto 20px; display: block; }
.cta-panel .eyebrow,
.cta-panel .section-lede { margin-left: auto; margin-right: auto; }
.cta-panel .section-lede { max-width: 52ch; }

/* ---------- footer ---------- */
.site-footer {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding: 36px 0 56px;
  border-top: 1px solid var(--border-soft);
  color: var(--faint);
}
.foot-logo { height: 34px; width: auto; opacity: 0.85; }
.site-footer p { margin: 0; font-size: 13px; font-family: var(--mono); color: var(--faint); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 36px; padding: 48px 0 56px; }
  .grid-3, .grid-4, .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-header { gap: 14px; flex-wrap: wrap; }
  nav { order: 3; width: 100%; margin-left: 0; }
  .header-cta { margin-left: auto; }
  .brand-logo { height: 50px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .site-header, main, .site-footer { width: min(100% - 28px, var(--maxw)); }
  .grid-2, .grid-3, .grid-4, .flow, .workflow-steps.grid-4 { grid-template-columns: 1fr; }
  .cta-panel { padding: 28px 20px; }
  .cta-logo { height: 64px; }
  .brand-logo { height: 44px; }
  .section { padding: 52px 0; }
  h1 { font-size: 2.35rem; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}