:root {
  /* Layout: windshield-sticker marker yellow on a cool asphalt-grey lot */
  --bg: #eceef1;
  --ink: #15181e;
  --ink-2: #4b5260;
  --line: #d3d7de;
  --card: #fbfcfd;
  --field: #f3f5f7;
  --tag: #ffd23f;
  --tag-ink: #15181e;
  --go: #0f7a4a;
  --warn: #b3261e;
  --bubble: #1f6fff;
  --radius: 10px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Barlow Condensed", "Arial Narrow", var(--sans);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101317; --ink: #eef0f3; --ink-2: #a3aab6; --line: #262b33; --card: #171b21; --field: #1d222a;
    --go: #3fcf8e; --warn: #ff8a80; --bubble: #3d82ff; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #101317; --ink: #eef0f3; --ink-2: #a3aab6; --line: #262b33; --card: #171b21; --field: #1d222a;
  --go: #3fcf8e; --warn: #ff8a80; --bubble: #3d82ff; color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); }
a { color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
header.top { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.logo { font: 700 24px var(--display); text-transform: uppercase; letter-spacing: .02em; text-decoration: none; display: inline-flex; gap: 8px; align-items: center; }
.logo b { background: var(--tag); color: var(--tag-ink); padding: 1px 7px; border-radius: 6px; transform: rotate(-3deg); display: inline-block; }
nav a { margin-left: 18px; color: var(--ink-2); text-decoration: none; font-size: 15px; }
nav a:hover { color: var(--ink); }
.btn { display: inline-block; border: 0; cursor: pointer; font: 600 16px var(--sans); padding: 13px 22px; border-radius: 999px; background: var(--ink); color: var(--bg); text-decoration: none; transition: transform .12s; }
.btn:hover { transform: translateY(-1px); }
.btn.tag { background: var(--tag); color: var(--tag-ink); }
.btn.ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); }
.btn:disabled { opacity: .5; cursor: progress; transform: none; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; text-transform: uppercase; letter-spacing: 0; line-height: .95; text-wrap: balance; margin: 0 0 14px; }
h1 { font-size: clamp(48px, 8.5vw, 96px); }
h2 { font-size: clamp(28px, 4vw, 42px); }
h3 { font-size: 22px; letter-spacing: .01em; }
.lede { font-size: clamp(18px, 2.2vw, 21px); color: var(--ink-2); max-width: 36em; }
.hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; padding: 48px 0 72px; }
.hero .ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.small { font-size: 14px; color: var(--ink-2); }
.marker { background: var(--tag); color: var(--tag-ink); padding: 0 .08em; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.bubble { background: var(--field); color: var(--ink); border-radius: 18px 18px 18px 4px; padding: 12px 15px; font-size: 15px; margin: 8px 0; }
.bubble.out { background: var(--bubble); color: #fff; border-radius: 18px 18px 4px 18px; margin-left: 32px; }
.lead-in { font: 13px var(--mono); color: var(--ink-2); border-left: 3px solid var(--tag); padding-left: 10px; margin-bottom: 12px; }
section { padding: 64px 0; border-top: 1px solid var(--line); }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.stat b { display: block; font: 700 52px var(--display); font-variant-numeric: tabular-nums; }
.price { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; max-width: 760px; }
.price .card.pro { border: 2px solid var(--ink); position: relative; }
.price .amount { font: 700 60px var(--display); font-variant-numeric: tabular-nums; }
.price ul { padding-left: 18px; color: var(--ink-2); }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; }
footer { padding: 36px 0 60px; color: var(--ink-2); font-size: 14px; border-top: 1px solid var(--line); }
footer a { margin-right: 16px; }

/* app */
.app { display: grid; grid-template-columns: 380px 1fr; gap: 28px; padding: 12px 0 60px; align-items: start; }
label { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 5px; }
input, select, textarea { width: 100%; font: 16px var(--sans); padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--field); color: var(--ink); }
textarea { min-height: 120px; resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.check { display: flex; gap: 8px; align-items: center; font-weight: 500; font-size: 14px; }
.check input { width: auto; }
.out-block { margin-bottom: 16px; }
.out-head { display: flex; justify-content: space-between; align-items: center; font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); margin-bottom: 6px; }
.out-text { white-space: pre-wrap; background: var(--field); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; font-size: 15px; }
.copy { font: 600 12px var(--sans); border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 999px; padding: 4px 11px; cursor: pointer; }
.copy.done { background: var(--go); color: #fff; border-color: var(--go); }
.meter { font-size: 14px; color: var(--ink-2); }
.notice { border-radius: 10px; padding: 12px 14px; margin: 12px 0; font-size: 15px; background: color-mix(in srgb, var(--tag) 30%, transparent); }
.notice.err { background: color-mix(in srgb, var(--warn) 18%, transparent); }
.empty { color: var(--ink-2); text-align: center; padding: 60px 20px; border: 1.5px dashed var(--line); border-radius: var(--radius); }
.legal { max-width: 720px; padding: 20px 0 60px; }

@media (max-width: 860px) {
  .hero, .app, .grid3, .price { grid-template-columns: 1fr; }
  .hero { padding-top: 16px; gap: 28px; }
  nav a.hide-sm { display: none; }
}

:focus-visible { outline: 3px solid var(--tag); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }