/* Layout: one mono family, terminal-black ground, left-aligned 1080px column,
   hairline-bordered panels; orange = action, green = "it worked". Single dark look (brand). */
:root {
  color-scheme: dark;
  --bg: #0A0B0E;
  --panel: #111318;
  --line: #23262E;
  --fg: #F1F5F9;
  --dim: #8B93A1;
  --orange: #F4805D;
  --green: #34D399;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --w: 1080px;
}
* { box-sizing: border-box; }
body { background: var(--bg); color: var(--fg); font-family: var(--mono); font-size: 15px; line-height: 1.65; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg); }
a { color: inherit; text-decoration: none; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }
.wrap { max-width: var(--w); margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
h1, h2, h3 { margin: 0; text-wrap: balance; line-height: 1.15; }
p { margin: 0; }
.dim { color: var(--dim); }
.o { color: var(--orange); }
.g { color: var(--green); }

/* header */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 9; background: var(--bg); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 24px; padding-block: 14px; flex-wrap: wrap; }
.logo { font-weight: 800; font-size: 18px; letter-spacing: -0.02em; display: inline-flex; align-items: center; gap: 6px; }
.logo i { display: inline-block; width: 9px; height: 18px; background: var(--orange); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .logo i { animation: none; } }
.nav { display: flex; gap: 22px; margin-left: auto; font-size: 13px; color: var(--dim); flex-wrap: wrap; }
.nav a:hover { color: var(--fg); }
.btn { display: inline-block; font: inherit; font-weight: 700; font-size: 14px; padding: 11px 18px; border: 1px solid var(--orange); background: var(--orange); color: #0A0B0E; }
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--fg); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--dim); }
.btn.sm { padding: 7px 12px; font-size: 13px; }

/* hero */
.hero .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding-block: 72px 64px; align-items: center; }
.hero > .wrap > * { min-width: 0; }
.eyebrow { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--green); margin-bottom: 18px; }
h1 { font-size: clamp(34px, 5vw, 54px); font-weight: 800; letter-spacing: -0.03em; }
.hero p.lead { margin-top: 20px; color: var(--dim); max-width: 46ch; }
.cta { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; align-items: center; }
.note { font-size: 12px; color: var(--dim); margin-top: 12px; }
.term { border: 1px solid var(--line); background: var(--panel); font-size: 13px; }
.term .bar { border-bottom: 1px solid var(--line); padding: 8px 14px; color: var(--dim); font-size: 12px; display: flex; justify-content: space-between; gap: 12px; }
.term pre { margin: 0; padding: 18px 14px; overflow-x: auto; font-family: var(--mono); line-height: 1.75; }

/* sections */
section { border-top: 1px solid var(--line); }
section > .wrap { padding-block: 64px; }
.sh { display: flex; flex-direction: column; gap: 10px; margin-bottom: 32px; }
.sh .eyebrow { margin: 0; }
h2 { font-size: clamp(24px, 3.4vw, 34px); font-weight: 700; letter-spacing: -0.02em; }
.sh p { color: var(--dim); max-width: 62ch; }

/* plans */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.plan { border: 1px solid var(--line); background: var(--panel); padding: 24px; display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.plan.hot { border-color: var(--orange); }
.plan .tag { font-size: 11px; letter-spacing: 0.14em; color: var(--orange); min-height: 18px; }
.plan h3 { font-size: 20px; }
.price { font-size: 44px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums; }
.price small { font-size: 14px; font-weight: 400; color: var(--dim); letter-spacing: 0; }
.plan .terms { font-size: 12px; color: var(--dim); min-height: 40px; }
.plan ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; font-size: 13px; flex: 1; }
.plan li { padding-left: 20px; position: relative; }
.plan li::before { content: "+"; position: absolute; left: 0; color: var(--green); font-weight: 700; }
.plan .btn { text-align: center; }
.under { margin-top: 18px; font-size: 13px; color: var(--dim); }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { border-top: 2px solid var(--line); padding-top: 16px; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.step .n { color: var(--orange); font-size: 13px; }
.step h3 { font-size: 17px; }
.step p { color: var(--dim); font-size: 14px; }
.snip { margin-top: 28px; }

/* two-col lists */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.box { border: 1px solid var(--line); padding: 24px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.box h3 { font-size: 17px; }
.box p { color: var(--dim); font-size: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; font-size: 12px; }
.chips span { border: 1px solid var(--line); padding: 3px 9px; color: var(--fg); }
.rules { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }
.rule { padding: 16px 0; border-bottom: 1px solid var(--line); display: flex; gap: 14px; min-width: 0; }
.rule b { color: var(--green); flex: none; }
.rule span { color: var(--dim); font-size: 14px; }
.rule span strong { color: var(--fg); font-weight: 500; }

/* migrate strip */
.strip { background: var(--panel); }
.strip .wrap { display: flex; gap: 24px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding-block: 32px; }
.strip h2 { font-size: 20px; }
.strip p { color: var(--dim); font-size: 14px; margin-top: 6px; }

/* faq */
details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; padding: 16px 0; font-weight: 500; list-style: none; display: flex; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::before { content: ">"; color: var(--green); }
details[open] summary::before { content: "v"; }
details p { color: var(--dim); padding: 0 0 18px 22px; max-width: 70ch; font-size: 14px; }

/* final + footer */
.final .wrap { padding-block: 72px; }
.final .card { border: 1px solid var(--orange); padding: 36px 28px; display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.final .sys { font-size: 12px; letter-spacing: 0.14em; color: var(--green); }
footer .wrap { padding-block: 40px; display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 24px; font-size: 13px; color: var(--dim); }
footer h4 { margin: 0 0 10px; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg); font-weight: 500; }
footer a { display: block; padding: 3px 0; }
footer a:hover { color: var(--fg); }

@media (max-width: 820px) {
  .hero .wrap { grid-template-columns: 1fr; padding-block: 44px; gap: 32px; }
  .plans, .steps, .cols, .rules { grid-template-columns: 1fr; }
  .nav { display: none; }
  .top .wrap { justify-content: space-between; }
  footer .wrap { grid-template-columns: 1fr 1fr; }
  section > .wrap { padding-block: 48px; }
}

/* language switcher */
.langs { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 12px; color: var(--dim); padding-block: 0 32px; }
.langs a:hover, .langs a[aria-current="true"] { color: var(--fg); }