/* Calc-U 59 help site — site-level styles on top of colors_and_type.css */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  background: var(--bg);                 /* #000 */
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  line-height: var(--leading-body);
}

/* ---------- Header / nav ----------------------------------------------- */
.site-header {
  background: #000;
  color: var(--fg);
  border-bottom: 1px solid var(--stroke);
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(6px);
}
.site-header .inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; gap: 28px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: inherit; cursor: pointer;
}
.brand img.app-icon {
  width: 40px; height: 40px;
  border-radius: 9px;
  display: block;
}
.brand .wm { display: flex; flex-direction: column; line-height: 1; }
.brand .wm .top {
  font-family: var(--font-key);
  font-weight: 700; font-size: 20px;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--fg);
}
.brand .wm .top em { font-style: normal; color: var(--accent); }
.brand .wm .sub {
  font-family: var(--font-key);
  font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--fg-3); margin-top: 4px;
}
.nav {
  display: flex; gap: 2px; margin-left: auto;
  font-family: var(--font-key);
  text-transform: uppercase; font-size: 13px;
  letter-spacing: 0.08em; font-weight: 600;
}
.nav a {
  color: var(--fg-2); text-decoration: none;
  padding: 8px 14px; border-radius: 4px; cursor: pointer;
  transition: color .15s, background .15s;
}
.nav a:hover { color: var(--fg); background: rgba(240,192,64,.06); }
.nav a.active {
  color: var(--fg);
  background: rgba(240,192,64,.10);
  box-shadow: inset 0 -2px 0 var(--accent);
}
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-key); text-transform: uppercase;
  font-size: 12px; letter-spacing: 0.08em; font-weight: 700;
  padding: 8px 16px;
  background: linear-gradient(180deg, var(--accent-yellow), var(--accent-yellow-2));
  color: var(--fg-on-yellow);
  border-radius: 6px; border: 0; cursor: pointer;
  box-shadow: 0 1px 0 var(--accent-yellow-deep), 0 2px 4px rgba(0,0,0,.4);
  text-decoration: none;
}
.nav-cta:hover { filter: brightness(1.06); }

/* ---------- Layout ----------------------------------------------------- */
.wrap { max-width: 1120px; margin: 0 auto; padding: 32px 24px 80px; }
.wrap-narrow { max-width: 820px; margin: 0 auto; padding: 32px 24px 80px; }
.eyebrow {
  font-family: var(--font-key); font-weight: 600;
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 8px;
}
h1.page-title {
  font-family: var(--font-key); font-weight: 700;
  font-size: 52px; line-height: 1.02;
  letter-spacing: 0.04em; text-transform: uppercase;
  margin: 0 0 16px; color: var(--fg);
}
h1.page-title em { font-style: normal; color: var(--accent); }
.lede {
  font-size: 19px; line-height: 1.5;
  color: var(--fg-2); margin: 0 0 32px; max-width: 62ch;
}
h2.section {
  font-family: var(--font-key); font-weight: 700;
  font-size: 28px; letter-spacing: 0.06em; text-transform: uppercase;
  margin: 48px 0 16px; color: var(--fg);
}
h3.sub {
  font-family: var(--font-key); font-weight: 600;
  font-size: 18px; letter-spacing: 0.06em; text-transform: uppercase;
  margin: 24px 0 8px; color: var(--fg);
}
.prose p { margin: 0 0 14px; max-width: 68ch; color: var(--fg-2); }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 14px; max-width: 68ch; color: var(--fg-2); }
.prose li { margin: 4px 0; }
.prose a { color: var(--link); }
.prose a:hover { text-decoration: underline; text-underline-offset: 2px; }

/* ---------- Cards / panels --------------------------------------------- */
.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
}
.callout {
  background: rgba(240,192,64,.06);
  border-left: 2px solid var(--accent);
  border-radius: 0 6px 6px 0;
  padding: 14px 18px; margin: 16px 0;
}
.callout .eyebrow { color: var(--accent); margin-bottom: 2px; }

/* ---------- Keystroke pill --------------------------------------------- */
.k {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 32px; height: 26px; padding: 0 8px;
  font-family: var(--font-key); font-weight: 700;
  font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase;
  border-radius: 5px;
  box-shadow: 0 1px 0 #000, 0 1px 2px rgba(0,0,0,.5);
  user-select: none; vertical-align: -2px;
}
.k.cream { background: linear-gradient(180deg,#efe4cc,#d8c8a8); color: #1a130d; }
.k.dark  { background: linear-gradient(180deg,#2a1f15,#1f1610); color: #efe4cc; }
.k.yellow { background: linear-gradient(180deg,#f0c040,#d8a830); color: #2a1f10; }
.kseq { display: inline-flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.kseq .sep { color: var(--fg-3); font-family: var(--font-mono); margin: 0 2px; }

/* ---------- Buttons ---------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-key); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  font-size: 14px; padding: 11px 20px;
  border-radius: 6px; border: 0; cursor: pointer; text-decoration: none;
}
.btn.primary {
  background: linear-gradient(180deg, var(--accent-yellow), var(--accent-yellow-2));
  color: var(--fg-on-yellow);
  box-shadow: 0 1px 0 var(--accent-yellow-deep), 0 2px 4px rgba(0,0,0,.5);
}
.btn.primary:hover { filter: brightness(1.06); }
.btn.secondary {
  background: var(--bg-elevated); color: var(--fg);
  border: 1px solid var(--stroke-2);
}
.btn.secondary:hover { background: var(--bg-inset); }

/* ---------- Footer ---------------------------------------------------- */
.site-footer {
  background: #000;
  color: var(--fg-3);
  padding: 32px 24px;
  margin-top: 64px;
  font-size: 13px;
  border-top: 1px solid var(--stroke);
}
.site-footer .inner {
  max-width: 1120px; margin: 0 auto;
  display: flex; gap: 24px; flex-wrap: wrap; align-items: center;
}
.site-footer a { color: var(--fg-2); text-decoration: none; }
.site-footer a:hover { color: var(--fg); }
.site-footer .credits { margin-left: auto; font-family: var(--font-mono); font-size: 11px; opacity: .7; }