/* Trade As Planned — shared tokens, header, footer and reading pages. The builder adds its own tool styles. */
:root {
  --ground: #e8ecf0;
  --panel: #f7f9fb;
  --paper: #fdfdfb;
  --ink: #16202b;
  --ink-2: #4a5663;
  --ink-3: #6c7885;
  --line: #d3d9e0;
  --line-2: #e3e8ed;
  --accent: #2445a8;
  --accent-soft: rgba(36, 69, 168, 0.09);
  --good: #1e7a4f;
  --warn: #9a5b06;
  --bad: #b42318;
  --bubble: #eef3ff;
  --shadow: 0 1px 2px rgba(22, 32, 43, 0.06), 0 8px 24px rgba(22, 32, 43, 0.07);
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --ground: #0e1319; --panel: #141b23; --paper: #18212b; --ink: #e5eaf0; --ink-2: #b3bdc8; --ink-3: #8994a1;
    --line: #2b3643; --line-2: #222c37; --accent: #8ea6ff; --accent-soft: rgba(142, 166, 255, 0.12);
    --good: #5cc592; --warn: #e0a94a; --bad: #ff8a7a; --bubble: #1d2a3d;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--ground); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.55;
  padding-inline: 16px;
}
a { color: var(--accent); text-underline-offset: 3px; }
img { max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.site-head { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 20px; padding-block: 18px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--serif); font-weight: 600; font-size: 19px; letter-spacing: -0.01em; }
.brand svg { width: 26px; height: 26px; }
.site-nav { display: flex; gap: 18px; margin-left: auto; font-size: 14.5px; flex-wrap: wrap; }
.site-nav a { color: var(--ink-2); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; }

.site-foot { max-width: 1200px; margin: 48px auto 0; padding-block: 22px 40px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 13.5px; display: grid; gap: 6px; }
.site-foot strong { color: var(--ink-2); font-weight: 600; }

.btn { display: inline-flex; align-items: center; gap: 8px; font: inherit; font-size: 15px; font-weight: 500; padding: 10px 18px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: var(--paper); text-decoration: none; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--accent); }

/* Reading pages */
.page { max-width: 1200px; margin: 0 auto; display: grid; gap: 56px; padding-block: 24px 0; }
.hero { display: grid; gap: 18px; max-width: 820px; }
.eyebrow { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.hero h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(34px, 5.6vw, 58px); line-height: 1.06; letter-spacing: -0.015em; margin: 0; text-wrap: balance; }
.hero p { margin: 0; font-size: clamp(17px, 2vw, 19px); color: var(--ink-2); max-width: 62ch; }
.hero .actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.hero .note { font-size: 14px; color: var(--ink-3); }

.section-title { font-family: var(--serif); font-weight: 600; font-size: clamp(24px, 3vw, 32px); line-height: 1.15; margin: 0 0 18px; text-wrap: balance; }
.steps { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); counter-reset: step; }
.step { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px; display: grid; gap: 8px; align-content: start; }
.step .n { font-family: var(--mono); font-size: 13px; color: var(--accent); }
.step h3 { margin: 0; font-size: 18px; }
.step p { margin: 0; color: var(--ink-2); font-size: 15px; }

.split { display: grid; gap: 28px; grid-template-columns: minmax(0, 1fr); align-items: start; }
@media (min-width: 900px) { .split { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); } }
.split .copy p { color: var(--ink-2); margin: 0 0 12px; max-width: 60ch; }

.chat { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 16px; display: grid; gap: 10px; }
.chat .label { font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.05em; text-transform: uppercase; }
.msg { background: var(--bubble); border-radius: 12px 12px 12px 4px; padding: 10px 12px; font-size: 14.5px; line-height: 1.45; max-width: 92%; }
.msg .t { display: block; font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); margin-bottom: 2px; }
.msg.red { background: transparent; border: 1.5px solid var(--bad); }
.msg.me { justify-self: end; background: var(--panel); border: 1px solid var(--line); border-radius: 12px 12px 4px 12px; }
.pill { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--line); margin: 6px 4px 0 0; color: var(--ink-2); }

.never { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); list-style: none; padding: 0; margin: 0; }
.never li { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; font-size: 15px; }
.never li strong { display: block; margin-bottom: 2px; }

.closing { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: clamp(20px, 4vw, 36px); display: grid; gap: 12px; justify-items: start; }
.closing p { margin: 0; color: var(--ink-2); max-width: 60ch; }
.closing .line { font-family: var(--serif); font-size: clamp(22px, 3vw, 30px); font-weight: 600; color: var(--ink); }

.prose { max-width: 720px; }
.prose h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(22px, 2.6vw, 28px); line-height: 1.2; margin: 36px 0 10px; text-wrap: balance; }
.prose h3 { font-size: 17px; margin: 22px 0 6px; }
.prose p, .prose li { color: var(--ink-2); }
.prose ol, .prose ul { padding-left: 22px; }
.prose li { margin: 4px 0; }
.prose strong { color: var(--ink); }
.prose .num { font-family: var(--mono); font-variant-numeric: tabular-nums; }