/* Lexo - lexokeyboard.app
   No external requests: no webfonts, no CDN, no analytics. A site for a
   keyboard that doesn't phone home shouldn't phone home either. */

:root {
  --ink:      #12161f;
  --slate:    #1b2130;
  --line:     #2a3242;
  --paper:    #f7f5f0;
  --paper-2:  #ebe7de;
  --amber:    #f2a93b;
  --mint:     #7fd1ae;
  --text:     #e8eaef;
  --muted:    #8a93a5;

  --bg:      var(--ink);
  --surface: var(--slate);
  --fg:      var(--text);
  --dim:     var(--muted);
  --rule:    var(--line);

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

  --measure: 68ch;
  --gutter: clamp(20px, 5vw, 48px);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:      var(--paper);
    --surface: #fff;
    --fg:      #171b24;
    --dim:     #5b6474;
    --rule:    #d8d3c8;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

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

.wrap {
  max-width: 940px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

a { color: var(--fg); text-decoration-color: var(--amber); text-underline-offset: 3px; }
a:hover { color: var(--amber); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- type scale ---------------------------------------------------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 20px;
}

h1 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(30px, 6.2vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 22px;
}

h2 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(20px, 3.2vw, 27px);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 18px;
}

h3 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}

.lede {
  font-size: clamp(18px, 2.3vw, 21px);
  line-height: 1.55;
  color: var(--fg);
  max-width: var(--measure);
  margin: 0 0 32px;
}

p { max-width: var(--measure); }

.dim { color: var(--dim); }

code, .m { font-family: var(--mono); font-size: 0.9em; }

/* ---- sections ------------------------------------------------------ */

section { padding: clamp(56px, 9vw, 96px) 0; border-top: 1px solid var(--rule); }
section:first-of-type { border-top: 0; }

/* ---- hero ---------------------------------------------------------- */

.hero { padding-top: clamp(48px, 8vw, 88px); padding-bottom: clamp(40px, 6vw, 64px); }

.brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  text-decoration: none;
}
.brand .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); display: inline-block; }

.masthead {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 26px 0;
  font-family: var(--mono);
  font-size: 13px;
}
.masthead nav { display: flex; gap: 20px; flex-wrap: wrap; }
.masthead nav a { color: var(--dim); text-decoration: none; }
.masthead nav a:hover { color: var(--amber); }

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 6px; }

.btn {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 13px 22px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-block;
  border: 1px solid transparent;
  transition: transform 120ms ease, background-color 120ms ease;
}
.btn-primary { background: var(--amber); color: #14100a; }
.btn-primary:hover { background: #ffbc55; color: #14100a; transform: translateY(-1px); }
.btn-ghost { border-color: var(--rule); color: var(--fg); }
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); transform: translateY(-1px); }

.price-note { font-family: var(--mono); font-size: 13px; color: var(--dim); margin: 18px 0 0; }

/* ---- signature: the transformation panel ---------------------------
   Two things Lexo actually does to your words, shown as a labelled
   before/after. Static markup on purpose: a simulated live instrument
   would be dressing up an example as a measurement. */

.transform {
  margin-top: clamp(40px, 6vw, 64px);
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--surface);
  overflow: hidden;
}

.transform-head {
  padding: 13px 18px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--dim);
}

.tstep {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 18px;
  align-items: baseline;
  padding: 16px 22px;
}
.tstep:first-of-type { padding-top: 26px; }
.tstep:last-of-type { padding-bottom: 26px; }

.tstep-label, .tstep-val, .transform-foot { max-width: none; margin: 0; }

.tstep-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
}

/* The output line is the payoff, so it gets the size. The input line stays
   quiet and slightly smaller so the eye lands on the finished sentence. */
.tstep-val { font-size: 16.5px; line-height: 1.55; }
.tstep-val.out { font-size: clamp(19px, 2.4vw, 24px); line-height: 1.4; letter-spacing: -0.01em; }
.tstep-val.raw  { color: var(--dim); }
.tstep-val.out  { color: var(--fg); }
.tstep-val.back { color: var(--mint); }
.tstep-val .cut { text-decoration: line-through; text-decoration-thickness: 1px; opacity: 0.5; }

.tsplit { height: 1px; background: var(--rule); margin: 12px 0; }

.tstep-val .conv { color: var(--amber); }

/* "not shipped" tag in the Ways in list - deliberately not styled as a
   badge/pill, which reads as a feature highlight rather than a caveat. */
.soon {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
  margin-left: 8px;
  white-space: nowrap;
}

.transform-foot {
  padding: 14px 18px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  line-height: 1.7;
  border-top: 1px solid var(--rule);
  margin-top: 12px;
}

/* ---- spec sheet ---------------------------------------------------- */

.specs { list-style: none; padding: 0; margin: 28px 0 0; border-top: 1px solid var(--rule); }
.specs li {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 8px 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.specs dt, .specs .field {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--dim);
}
.specs .value { margin: 0; max-width: none; }
.specs .value .m { color: var(--amber); }

/* ---- tiers --------------------------------------------------------- */

.tiers { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.tier { border: 1px solid var(--rule); border-radius: 10px; padding: 24px; background: var(--surface); }
.tier .tag {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--dim); margin: 0 0 10px;
}
.tier .amount { font-family: var(--mono); font-size: 27px; font-weight: 600; letter-spacing: -0.02em; margin: 0 0 12px; }
.tier ul { margin: 0; padding-left: 18px; }
.tier li { margin-bottom: 7px; }
.tier li::marker { color: var(--amber); }

/* ---- writeups ------------------------------------------------------ */

.pieces { list-style: none; padding: 0; margin: 28px 0 0; }
.pieces li { border-top: 1px solid var(--rule); padding: 22px 0; }
.pieces li:last-child { border-bottom: 1px solid var(--rule); }
.pieces a { font-family: var(--mono); font-weight: 600; font-size: 17px; letter-spacing: -0.01em; text-decoration: none; display: inline-block; margin-bottom: 5px; }
.pieces p { margin: 0; color: var(--dim); font-size: 15.5px; }

/* ---- limits -------------------------------------------------------- */

.limits { margin: 24px 0 0; padding-left: 20px; }
.limits li { margin-bottom: 13px; max-width: var(--measure); }
.limits li::marker { color: var(--dim); }
.limits strong { font-family: var(--mono); font-size: 0.95em; font-weight: 600; }

/* ---- footer -------------------------------------------------------- */

footer {
  border-top: 1px solid var(--rule);
  padding: 40px 0 56px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--dim);
}
footer a { color: var(--dim); }
footer nav { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 16px; }

/* ---- article pages ------------------------------------------------- */

.article { padding: 8px 0 clamp(56px, 9vw, 88px); }
.article h1 { font-size: clamp(26px, 4.6vw, 40px); margin-bottom: 12px; }
.article h2 { margin-top: 46px; }
.article h3 { margin-top: 30px; font-size: 17px; }
.article p, .article li { max-width: var(--measure); }
.article ul, .article ol { padding-left: 20px; }
.article li { margin-bottom: 11px; }
.article li::marker { color: var(--amber); }
.article code { background: var(--surface); padding: 2px 6px; border-radius: 4px; border: 1px solid var(--rule); }
.article .meta { font-family: var(--mono); font-size: 12.5px; color: var(--dim); margin: 0 0 34px; }
.article .note { border-left: 2px solid var(--amber); padding: 4px 0 4px 18px; margin: 28px 0; color: var(--dim); }
.article table { border-collapse: collapse; width: 100%; margin: 24px 0; font-size: 15px; }
.article th, .article td { text-align: left; padding: 11px 14px 11px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.article th { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--dim); font-weight: 600; }
.article .back { font-family: var(--mono); font-size: 13px; color: var(--dim); text-decoration: none; display: inline-block; margin-bottom: 28px; }
.article .back:hover { color: var(--amber); }

/* ---- responsive ---------------------------------------------------- */

@media (max-width: 720px) {
  body { font-size: 16px; }
  .tstep { grid-template-columns: 1fr; gap: 2px; padding: 9px 16px; }
  .tiers { grid-template-columns: 1fr; }
  .specs li { grid-template-columns: 1fr; gap: 3px; padding: 13px 0; }
  .masthead { padding: 20px 0; }
  .masthead nav { gap: 15px; }
}

/* Below ~520px the four nav links wrap to a second line while the brand stays
   vertically centred beside them, which reads as a misalignment. Stack instead. */
@media (max-width: 520px) {
  .masthead { flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .btn:hover { transform: none; }
}