:root {
      --bg: #0a0817;
      --bg-2: #0e0c1f;
      --panel: #100e22;
      --line: #1f1c36;
      --ink: #eeedff;
      --ink-2: #9d9bb8;
      --ink-3: #6b6a86;
      --accent: #4b4bd6;
      --accent-hover: #5a5ae8;
      --accent-text: #7b7ffd;
      --green: #35d07f;
      --red: #f0625d;
      --display: "Inter Tight", "Inter", system-ui, sans-serif;
      --body: "Inter", system-ui, sans-serif;
      --mono: "JetBrains Mono", ui-monospace, monospace;
      --max: 1180px;
      --r-lg: 22px;
      --r-md: 14px;
      --r-sm: 10px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }

    body {
      margin: 0;
      background: var(--bg);
      color: var(--ink);
      font-family: var(--body);
      font-size: 17px;
      line-height: 1.55;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; }
    :focus-visible { outline: 2px solid var(--accent-text); outline-offset: 3px; border-radius: 6px; }

    .wrap { max-width: var(--max); margin: 0 auto; padding: 0 28px; }

    /* ---------- nav ---------- */
    .nav {
      position: sticky; top: 0; z-index: 20;
      backdrop-filter: blur(14px);
      background: rgba(10, 8, 23, 0.72);
      border-bottom: 1px solid rgba(255,255,255,0.04);
    }
    .nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; }
    .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
    .brand img { width: 30px; height: 30px; border-radius: 8px; }
    .brand span { font-family: var(--display); font-weight: 600; font-size: 22px; letter-spacing: -0.02em; }
    .brand small { color: var(--ink-2); font-weight: 500; font-size: 22px; letter-spacing: -0.02em; }
    .nav-links { display: flex; gap: 8px; align-items: center; }
    .nav-links a.txt { color: var(--ink-2); text-decoration: none; font-size: 15px; padding: 10px 14px; border-radius: var(--r-sm); }
    .nav-links a.txt:hover { color: var(--ink); background: rgba(255,255,255,0.04); }

    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      font-family: var(--body); font-weight: 600; font-size: 16px;
      padding: 15px 28px; border-radius: 12px; border: 0; cursor: pointer;
      text-decoration: none; white-space: nowrap; line-height: 1;
      transition: background .15s ease, transform .1s ease;
    }
    .btn:active { transform: translateY(1px); }
    .btn-primary { background: var(--accent); color: #fff; }
    .btn-primary:hover { background: var(--accent-hover); }
    .btn-ghost { background: rgba(255,255,255,0.08); color: var(--ink); }
    .btn-ghost:hover { background: rgba(255,255,255,0.13); }
    .btn-light { background: #fff; color: #0a0817; padding: 12px 20px; font-size: 15px; }
    .btn-light:hover { background: #e8e8ff; }

    /* ---------- hero ---------- */
    .hero {
      position: relative; overflow: hidden;
      padding: 110px 0 90px;
      text-align: center;
    }
    .stars, .stars::after {
      position: absolute; inset: 0; pointer-events: none;
      background-image:
        radial-gradient(1px 1px at 12% 22%, rgba(255,255,255,.7) 50%, transparent 51%),
        radial-gradient(1px 1px at 78% 14%, rgba(255,255,255,.6) 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 41% 68%, rgba(255,255,255,.8) 50%, transparent 51%),
        radial-gradient(1px 1px at 88% 61%, rgba(255,255,255,.5) 50%, transparent 51%),
        radial-gradient(1px 1px at 26% 84%, rgba(255,255,255,.6) 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 63% 33%, rgba(255,255,255,.7) 50%, transparent 51%),
        radial-gradient(1px 1px at 5% 55%, rgba(255,255,255,.5) 50%, transparent 51%),
        radial-gradient(1px 1px at 94% 38%, rgba(255,255,255,.6) 50%, transparent 51%),
        radial-gradient(1px 1px at 52% 9%, rgba(255,255,255,.6) 50%, transparent 51%),
        radial-gradient(1px 1px at 33% 45%, rgba(255,255,255,.45) 50%, transparent 51%),
        radial-gradient(1px 1px at 70% 80%, rgba(255,255,255,.55) 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 18% 8%, rgba(255,255,255,.7) 50%, transparent 51%);
    }
    .stars::after { content: ""; transform: scale(-1) translate(3%, 7%); opacity: .6; }
    .horizon {
      position: absolute; left: 50%; top: -640px; width: 1900px; height: 1100px;
      transform: translateX(-30%) rotate(-14deg);
      border-radius: 50%;
      background: radial-gradient(ellipse at 50% 100%, rgba(120,150,255,.16) 0%, rgba(60,80,200,.10) 25%, transparent 62%);
      pointer-events: none;
    }
    .hero .wrap { position: relative; }
    .eyebrow {
      font-family: var(--mono); font-size: 13px; letter-spacing: .06em; text-transform: uppercase;
      color: var(--accent-text); margin: 0 0 22px;
    }
    h1, h2, h3 { font-family: var(--display); font-weight: 600; letter-spacing: -0.035em; margin: 0; }
    h1 { font-size: clamp(48px, 8vw, 96px); line-height: .98; }
    h1 .dim { color: var(--ink-2); font-weight: 500; }
    .lede { color: var(--ink-2); font-size: clamp(18px, 2.2vw, 22px); max-width: 640px; margin: 24px auto 0; }

    /* ---------- code card ---------- */
    .code-card {
      margin: 48px auto 0; max-width: 640px;
      background: linear-gradient(180deg, #14122a 0%, #0f0d21 100%);
      border: 1px solid var(--line);
      border-radius: var(--r-lg);
      padding: 34px 34px 28px;
      box-shadow: 0 30px 80px rgba(0,0,0,.45), 0 0 0 1px rgba(123,127,253,.06) inset;
      text-align: left;
    }
    .code-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
    .code-label { color: var(--ink-2); font-size: 15px; }
    .status { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px; letter-spacing: .05em; text-transform: uppercase; color: var(--green); }
    .status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(53,208,127,.15); }
    .code-row { display: flex; gap: 12px; margin-top: 18px; align-items: stretch; }
    .code-value {
      flex: 1; display: flex; align-items: center; justify-content: space-between;
      background: #0a0817; border: 1px dashed #3a3762; border-radius: var(--r-md);
      padding: 0 22px; font-family: var(--mono); font-size: clamp(22px, 4vw, 30px); letter-spacing: .12em;
      color: #fff; min-height: 66px; user-select: all;
    }
    .copy-btn {
      background: rgba(255,255,255,.08); color: var(--ink); border: 0; border-radius: var(--r-md);
      padding: 0 22px; font-family: var(--body); font-weight: 600; font-size: 15px; cursor: pointer; min-width: 110px;
      transition: background .15s;
    }
    .copy-btn:hover { background: rgba(255,255,255,.14); }
    .copy-btn.done { background: rgba(53,208,127,.15); color: var(--green); }
    .code-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 18px; }
    .code-meta div { background: rgba(255,255,255,.03); border-radius: var(--r-sm); padding: 12px 14px; }
    .code-meta b { display: block; font-family: var(--display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; }
    .code-meta span { color: var(--ink-3); font-size: 13px; }
    .code-cta { margin-top: 22px; display: flex; gap: 10px; }
    .code-cta .btn { flex: 1; }
    .verified { text-align: center; color: var(--ink-3); font-size: 14px; margin-top: 18px; }
    .verified time { color: var(--ink-2); }
    .astro { margin: 40px auto -30px; width: min(520px, 80vw); }
    .astro img { width: 100%; height: auto; display: block; animation: float 6s ease-in-out infinite; will-change: transform; }
    @keyframes float {
      0%, 100% { transform: translateY(0) rotate(0deg); }
      50% { transform: translateY(-22px) rotate(-1.5deg); }
    }

    /* ---------- sections ---------- */
    section { padding: 100px 0; }
    .section-head { max-width: 760px; margin-bottom: 44px; }
    .section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
    h2 { font-size: clamp(36px, 5vw, 60px); line-height: 1.02; }
    .section-head p { color: var(--ink-2); font-size: 19px; margin: 18px 0 0; }

    /* fee comparison */
    .fees { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .fee {
      background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 34px;
      position: relative; overflow: hidden;
    }
    .fee.on { border-color: rgba(123,127,253,.35); background: linear-gradient(180deg, #16143a 0%, #100e22 100%); }
    .fee .eyebrow { margin-bottom: 14px; }
    .fee .eyebrow.plain { color: var(--ink-3); }
    .fee .big { font-family: var(--display); font-weight: 600; font-size: clamp(60px, 9vw, 104px); letter-spacing: -0.05em; line-height: 1; }
    .fee.on .big { color: #fff; }
    .fee:not(.on) .big { color: var(--ink-2); text-decoration: line-through; text-decoration-color: var(--red); text-decoration-thickness: 5px; }
    .fee p { color: var(--ink-2); margin: 14px 0 0; max-width: 34ch; }
    .fee .bar { height: 10px; border-radius: 6px; background: rgba(255,255,255,.06); margin-top: 26px; overflow: hidden; }
    .fee .bar i { display: block; height: 100%; border-radius: 6px; background: var(--red); width: 100%; }
    .fee.on .bar i { background: var(--green); width: 50%; }

    /* calculator */
    .calc {
      margin-top: 16px;
      background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-lg);
      padding: 34px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center;
    }
    .calc label { display: block; color: var(--ink-2); font-size: 15px; margin-bottom: 10px; }
    .calc output { display: block; font-family: var(--display); font-weight: 600; font-size: 44px; letter-spacing: -0.03em; line-height: 1; margin-bottom: 18px; }
    input[type=range] {
      --fill: 4%;
      -webkit-appearance: none; appearance: none;
      width: 100%; height: 28px; margin: 6px 0 0; background: transparent; cursor: grab;
      display: block;
    }
    input[type=range]:active { cursor: grabbing; }
    input[type=range]::-webkit-slider-runnable-track {
      height: 8px; border-radius: 6px;
      background: linear-gradient(90deg, var(--accent) 0 var(--fill), rgba(255,255,255,.12) var(--fill) 100%);
    }
    input[type=range]::-moz-range-track { height: 8px; border-radius: 6px; background: rgba(255,255,255,.12); }
    input[type=range]::-moz-range-progress { height: 8px; border-radius: 6px; background: var(--accent); }
    input[type=range]::-webkit-slider-thumb {
      -webkit-appearance: none; appearance: none;
      width: 24px; height: 24px; margin-top: -8px; border-radius: 50%;
      background: #fff; border: 0;
      box-shadow: 0 0 0 4px rgba(75,75,214,.35), 0 4px 14px rgba(0,0,0,.5);
      transition: transform .18s cubic-bezier(.34,1.56,.64,1), box-shadow .18s ease;
    }
    input[type=range]::-moz-range-thumb {
      width: 24px; height: 24px; border-radius: 50%; background: #fff; border: 0;
      box-shadow: 0 0 0 4px rgba(75,75,214,.35), 0 4px 14px rgba(0,0,0,.5);
      transition: transform .18s cubic-bezier(.34,1.56,.64,1), box-shadow .18s ease;
    }
    input[type=range]:hover::-webkit-slider-thumb,
    input[type=range]:active::-webkit-slider-thumb { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(75,75,214,.3), 0 6px 18px rgba(0,0,0,.55); }
    input[type=range]:hover::-moz-range-thumb,
    input[type=range]:active::-moz-range-thumb { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(75,75,214,.3), 0 6px 18px rgba(0,0,0,.55); }
    input[type=range]:focus { outline: none; }
    input[type=range]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px rgba(75,75,214,.35), 0 0 0 7px rgba(123,127,253,.6); }
    input[type=range]:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 4px rgba(75,75,214,.35), 0 0 0 7px rgba(123,127,253,.6); }
    .range-ticks { display: flex; justify-content: space-between; color: var(--ink-3); font-size: 12px; margin-top: 2px; }
    .calc output, .calc-out b { font-variant-numeric: tabular-nums; }
    .calc-out { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .calc-out div { background: rgba(255,255,255,.03); border-radius: var(--r-md); padding: 18px 20px; }
    .calc-out div span { display: block; color: var(--ink-3); font-size: 13px; margin-bottom: 8px; }
    .calc-out div b { font-family: var(--display); font-weight: 600; font-size: 30px; letter-spacing: -0.03em; }
    .calc-out .save { grid-column: 1 / -1; background: rgba(53,208,127,.08); border: 1px solid rgba(53,208,127,.2); }
    .calc-out .save b { color: var(--green); font-size: 40px; }
    .calc .note { color: var(--ink-3); font-size: 13px; margin: 12px 0 0; }

    /* steps */
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .step { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px 28px 32px; }
    .step .n { font-family: var(--mono); color: var(--accent-text); font-size: 13px; letter-spacing: .06em; margin-bottom: 44px; }
    .step h3 { font-size: 24px; letter-spacing: -0.025em; line-height: 1.15; }
    .step p { color: var(--ink-2); margin: 12px 0 0; font-size: 16px; }
    .step code { font-family: var(--mono); background: rgba(255,255,255,.07); padding: 2px 8px; border-radius: 6px; font-size: 14px; color: #fff; }

    /* why fomo / features */
    .feat { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .feat article {
      background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-lg);
      padding: 30px 28px 0; display: flex; flex-direction: column; overflow: hidden;
    }
    .feat h3 { font-size: 27px; letter-spacing: -0.025em; line-height: 1.12; }
    .feat .eyebrow { margin-bottom: 18px; }
    .feat .art { padding-top: 22px; display: flex; align-items: flex-end; justify-content: center; }
    .feat .art.center { padding: 40px 0; }
    .feat .art img {
      max-width: 100%; height: auto; display: block;
      transition: transform .45s cubic-bezier(.34, 1.56, .64, 1);
    }
    .feat article:hover .art img { transform: translateY(-10px) scale(1.03); }

    /* faq */
    .faq { max-width: 800px; margin: 0 auto; }
    .faq details { border-top: 1px solid var(--line); }
    .faq details:last-child { border-bottom: 1px solid var(--line); }
    .faq summary {
      cursor: pointer; list-style: none; padding: 24px 0; font-family: var(--display); font-weight: 600; font-size: 22px; letter-spacing: -0.02em;
      display: flex; justify-content: space-between; align-items: center; gap: 20px;
    }
    .faq summary::-webkit-details-marker { display: none; }
    .faq summary::after { content: "+"; color: var(--ink-3); font-weight: 400; font-size: 28px; flex-shrink: 0; transition: transform .2s; }
    .faq details[open] summary::after { transform: rotate(45deg); }
    .faq details p { color: var(--ink-2); margin: 0 0 26px; max-width: 70ch; }

    /* final cta */
    .final { text-align: center; position: relative; overflow: hidden; background: radial-gradient(ellipse at 50% 120%, #1e1b4f 0%, var(--bg) 60%); }
    .final .ring { position: absolute; left: 50%; top: 50%; width: 760px; height: 760px; border: 1px dashed rgba(255,255,255,.12); border-radius: 50%; transform: translate(-50%, -50%); pointer-events: none; }
    .final .ring.sm { width: 440px; height: 440px; }
    .final .wrap { position: relative; }
    .final .lede { margin-bottom: 36px; }
    .final .btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

    /* footer */
    footer { padding: 44px 0 36px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 14px; }
    footer .cols { display: flex; justify-content: space-between; align-items: center; gap: 30px; flex-wrap: wrap; }
    footer p { margin: 24px 0 0; }
    .social { display: flex; gap: 8px; }
    .social a {
      display: inline-flex; align-items: center; gap: 9px; color: var(--ink-2); text-decoration: none;
      padding: 10px 16px; border-radius: 12px; background: rgba(255,255,255,.05); font-weight: 500; font-size: 15px;
    }
    .social a:hover { color: var(--ink); background: rgba(255,255,255,.1); }

    @media (max-width: 900px) {
      .steps, .feat { grid-template-columns: 1fr 1fr; }
      .calc { grid-template-columns: 1fr; gap: 26px; }
    }
    @media (max-width: 640px) {
      .wrap { padding: 0 18px; }
      .nav .wrap { height: 66px; }
      .nav-links a.txt { display: none; }
      .hero { padding: 72px 0 60px; }
      .astro { margin-top: 28px; }
      section { padding: 70px 0; }
      .fees, .steps, .feat { grid-template-columns: 1fr; }
      .code-card { padding: 24px 20px 20px; }
      .code-row { flex-direction: column; }
      .copy-btn { min-height: 52px; }
      .code-value { min-height: 58px; font-size: 22px; }
      h1 { font-size: clamp(40px, 12vw, 52px); }
      .feat article { padding: 24px 20px 0; }
      .feat h3 { font-size: 23px; }
      .step { padding: 24px 22px 26px; }
      .btn { padding: 15px 20px; }
      .code-meta { grid-template-columns: 1fr; }
      .code-cta { flex-direction: column; }
      .calc-out { grid-template-columns: 1fr; }
      .faq summary { font-size: 19px; }
      footer .cols { flex-direction: column; align-items: flex-start; }
      .social { flex-wrap: wrap; }
    }

    /* footer guide links + article pages */
    .foot-links { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 26px; }
    .foot-links a { color: var(--ink-2); text-decoration: none; font-size: 14px; }
    .foot-links a:hover { color: var(--ink); }
    .article { padding: 80px 0 60px; }
    .article .wrap { max-width: 780px; }
    .article h1 { font-size: clamp(38px, 6vw, 64px); line-height: 1.02; }
    .article .lede { margin: 20px 0 0; text-align: left; max-width: none; }
    .article .meta { color: var(--ink-3); font-size: 14px; margin-top: 18px; }
    .article h2 { font-size: clamp(28px, 3.6vw, 38px); margin: 56px 0 16px; }
    .article h3 { font-size: 22px; letter-spacing: -0.02em; margin: 32px 0 10px; }
    .article p, .article li { color: var(--ink-2); font-size: 17px; }
    .article p { margin: 0 0 18px; }
    .article ul, .article ol { padding-left: 22px; margin: 0 0 18px; }
    .article li { margin-bottom: 8px; }
    .article strong { color: var(--ink); font-weight: 600; }
    .article a { color: var(--accent-text); }
    .article code { font-family: var(--mono); background: rgba(255,255,255,.07); padding: 2px 8px; border-radius: 6px; font-size: 15px; color: #fff; }
    .article figure { margin: 28px 0; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 28px; }
    .article figure img { max-width: 100%; height: auto; display: block; margin: 0 auto; }
    .article figcaption { color: var(--ink-3); font-size: 14px; margin-top: 14px; text-align: center; }
    .ftable { width: 100%; border-collapse: collapse; margin: 0 0 18px; font-size: 16px; }
    .ftable th, .ftable td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); color: var(--ink-2); vertical-align: top; }
    .ftable th { color: var(--ink-3); font-weight: 500; font-size: 13px; }
    .ftable td:first-child { color: var(--ink); font-weight: 500; }
    .ftable tr.hl td { color: #fff; background: rgba(75,75,214,.12); }
    .ftable-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-md); margin: 0 0 18px; }
    .ftable-wrap .ftable { margin: 0; }
    .callout { background: linear-gradient(180deg, #16143a 0%, #100e22 100%); border: 1px solid rgba(123,127,253,.35); border-radius: var(--r-lg); padding: 28px; margin: 36px 0; }
    .callout p { margin: 0 0 16px; color: var(--ink); }
    .callout p:last-child { margin: 0; }
    .callout .btn { margin-top: 4px; }
    .warn { border-left: 3px solid var(--red); padding: 4px 0 4px 18px; margin: 0 0 18px; }
    .warn p { margin: 0; }
    .crumbs { color: var(--ink-3); font-size: 14px; margin-bottom: 26px; }
    .crumbs a { color: var(--ink-2); text-decoration: none; }
    .more { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 56px; }
    .more a { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-md); padding: 20px 22px; text-decoration: none; color: var(--ink); font-weight: 500; }
    .more a small { display: block; color: var(--ink-3); font-weight: 400; font-size: 13px; margin-top: 6px; }
    .more a:hover { border-color: rgba(123,127,253,.35); }
    @media (max-width: 640px) { .more { grid-template-columns: 1fr; } .article { padding: 56px 0 40px; } }