/* AgentReady — cool paper, dark editor panes, diff-green accent */

:root {
  --paper: #fafbfd;
  --ink: #101826;
  --muted: #5a6472;
  --line: #e3e8ef;
  --accent: #1a7f37;      /* diff green (light bg) */
  --accent-bright: #3fb950; /* diff green (dark bg) */
  --pane: #0d1420;
  --pane-line: #1f2937;
  --pane-text: #e6edf3;
  --pane-muted: #8b96a5;
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --body: system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0b0f17;
    --ink: #e6edf3;
    --muted: #98a3b3;
    --line: #1f2937;
    --accent: #3fb950;
  }
}

* { box-sizing: border-box; margin: 0; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

code { font-family: var(--mono); font-size: 0.92em; }
a { color: inherit; }

/* ---- nav ---- */
.nav {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1200px; margin: 0 auto; padding: 20px 24px;
}
.brand {
  font-family: var(--display); font-weight: 800; font-size: 1.15rem;
  text-decoration: none; letter-spacing: -0.01em;
}
.brand-mark {
  font-family: var(--mono); color: var(--accent); font-weight: 700;
}
.nav-links { display: flex; gap: 22px; font-size: 0.95rem; }
.nav-links a { text-decoration: none; color: var(--muted); }
.nav-links a:hover { color: var(--ink); }
.nav-links .nav-pro { color: var(--accent); font-weight: 600; }

/* ---- hero ---- */
.hero { max-width: 880px; margin: 40px auto 8px; padding: 0 24px; text-align: center; }
.eyebrow {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--display); font-weight: 800;
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 1.04; letter-spacing: -0.025em; margin-bottom: 20px;
}
.hero .sub { color: var(--muted); font-size: 1.08rem; max-width: 640px; margin: 0 auto; }
.hero .sub strong { color: var(--ink); }

/* ---- tool ---- */
.tool {
  display: grid;
  grid-template-columns: 1fr auto 1.15fr;
  gap: 0 18px;
  max-width: 1200px; margin: 40px auto 0; padding: 0 24px;
  align-items: stretch;
}
.pane {
  background: var(--pane); border: 1px solid var(--pane-line); border-radius: 12px;
  display: flex; flex-direction: column; overflow: hidden;
  min-height: 480px;
  box-shadow: 0 12px 40px rgba(13, 20, 32, 0.18);
}
.pane-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border-bottom: 1px solid var(--pane-line);
  font-family: var(--mono); font-size: 0.8rem; color: var(--pane-muted);
}
.pane-title { color: var(--pane-muted); }
.pane-actions { display: flex; gap: 8px; align-items: center; }

textarea#manifest-input {
  flex: 1; background: transparent; color: var(--pane-text);
  border: 0; resize: none; padding: 14px;
  font-family: var(--mono); font-size: 0.82rem; line-height: 1.5;
}
textarea#manifest-input:focus { outline: none; }
.pane-in:focus-within { border-color: var(--accent-bright); }

.samples {
  display: flex; gap: 8px; align-items: center; padding: 10px 14px;
  border-top: 1px solid var(--pane-line); flex-wrap: wrap;
}
.samples-label { font-family: var(--mono); font-size: 0.75rem; color: var(--pane-muted); }
.samples button, .file-btn, .ghost-btn {
  background: transparent; border: 1px solid var(--pane-line); color: var(--pane-text);
  font-family: var(--mono); font-size: 0.75rem; padding: 4px 10px;
  border-radius: 6px; cursor: pointer;
}
.samples button:hover, .file-btn:hover, .ghost-btn:hover { border-color: var(--accent-bright); color: var(--accent-bright); }

.extras { padding: 10px 14px; border-top: 1px solid var(--pane-line); }
#description-input {
  width: 100%; background: transparent; border: 1px solid var(--pane-line);
  border-radius: 6px; color: var(--pane-text); padding: 7px 10px;
  font-family: var(--mono); font-size: 0.78rem;
}
#description-input:focus { outline: none; border-color: var(--accent-bright); }
.added-files { margin-top: 8px; font-family: var(--mono); font-size: 0.72rem; color: var(--pane-muted); }
.attribution-toggle { display: flex; gap: 6px; align-items: center; margin-top: 8px; font-family: var(--mono); font-size: 0.72rem; color: var(--pane-muted); cursor: pointer; }

/* conveyor between panes */
.conveyor {
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  gap: 14px; min-width: 120px; max-width: 160px;
}
.arrow { font-size: 1.6rem; color: var(--muted); }
.chips { display: flex; flex-direction: column; gap: 6px; align-items: center; }
.chip {
  font-family: var(--mono); font-size: 0.72rem;
  border: 1px solid var(--accent); color: var(--accent);
  padding: 3px 10px; border-radius: 999px; white-space: nowrap;
  animation: chip-in 240ms ease-out;
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}
@keyframes chip-in {
  from { opacity: 0; transform: translateY(4px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

/* output pane */
.tabs { display: flex; gap: 4px; }
.tab {
  background: transparent; border: 0; color: var(--pane-muted);
  font-family: var(--mono); font-size: 0.8rem; padding: 4px 10px;
  border-radius: 6px; cursor: pointer;
}
.tab.active { color: var(--accent-bright); background: rgba(63, 185, 80, 0.1); }
#output {
  flex: 1; overflow: auto; padding: 14px; margin: 0;
  font-family: var(--mono); font-size: 0.78rem; line-height: 1.55;
  color: var(--pane-text); white-space: pre-wrap; word-break: break-word;
}
#output:focus-visible { outline: 2px solid var(--accent-bright); outline-offset: -2px; }

/* ---- how it works ---- */
.how {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
  max-width: 1000px; margin: 88px auto 0; padding: 0 24px;
}
.step .k { font-family: var(--mono); color: var(--accent); font-size: 0.8rem; }
.step h3 { font-family: var(--display); font-weight: 700; margin: 6px 0 8px; letter-spacing: -0.01em; }
.step p { color: var(--muted); font-size: 0.94rem; }

/* ---- why ---- */
.why { max-width: 760px; margin: 88px auto 0; padding: 0 24px; }
.why h2, .faq h2 {
  font-family: var(--display); font-weight: 800; letter-spacing: -0.02em;
  font-size: 1.7rem; margin-bottom: 14px;
}
.why > p { color: var(--muted); }
.facts { list-style: none; padding: 0; margin-top: 22px; display: grid; gap: 12px; }
.facts li { padding-left: 22px; position: relative; color: var(--muted); font-size: 0.96rem; }
.facts li::before { content: "+"; position: absolute; left: 0; color: var(--accent); font-family: var(--mono); font-weight: 700; }
.facts strong { color: var(--ink); }

/* ---- pro ---- */
.pro { max-width: 820px; margin: 96px auto 0; padding: 0 24px; }
.pro-card {
  background: var(--pane); color: var(--pane-text);
  border: 1px solid var(--pane-line); border-radius: 16px;
  padding: 40px 44px;
  box-shadow: 0 16px 48px rgba(13, 20, 32, 0.22);
}
.eyebrow-light { color: var(--accent-bright); }
.pro-card h2 {
  font-family: var(--display); font-weight: 800; font-size: 2rem;
  letter-spacing: -0.02em; margin-bottom: 12px;
}
.pro-lead { color: var(--pane-muted); margin-bottom: 18px; }
.pro-list { list-style: none; padding: 0; display: grid; gap: 10px; margin-bottom: 26px; }
.pro-list li { padding-left: 24px; position: relative; font-size: 0.96rem; color: var(--pane-text); }
.pro-list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent-bright); font-family: var(--mono); }
.pro-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.buy-btn {
  background: var(--accent-bright); color: #08110a; text-decoration: none;
  font-family: var(--display); font-weight: 700; font-size: 1.05rem;
  padding: 12px 26px; border-radius: 10px; display: inline-block;
}
.buy-btn:hover { filter: brightness(1.08); }
.price { font-family: var(--mono); font-size: 0.9rem; color: var(--pane-muted); }
.price s { opacity: 0.6; }
.price #price-now { color: var(--accent-bright); font-weight: 700; }
.guarantee { margin-top: 14px; font-size: 0.85rem; color: var(--pane-muted); }

/* ---- faq ---- */
.faq { max-width: 760px; margin: 88px auto 0; padding: 0 24px; }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin-top: 10px; color: var(--muted); font-size: 0.95rem; }

/* ---- footer ---- */
.footer {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  max-width: 1200px; margin: 80px auto 0; padding: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: 0.85rem;
}

/* ---- responsive ---- */
@media (max-width: 900px) {
  .tool { grid-template-columns: 1fr; gap: 14px; }
  .conveyor { flex-direction: row; max-width: none; min-height: 0; }
  .chips { flex-direction: row; flex-wrap: wrap; justify-content: center; }
  .arrow { transform: rotate(90deg); }
  .pane { min-height: 360px; }
  .how { grid-template-columns: 1fr; gap: 24px; }
  .pro-card { padding: 28px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .chip { animation: none; }
}

button:focus-visible, a:focus-visible, .tab:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}