:root {
    --navy: #0F172A;
    --navy-2: #16213A;
    --sapphire: #1D4ED8;
    --sapphire-dark: #1E3A8A;
    --sky: #38BDF8;
    --sky-dim: #0284C7;
    --silver: #CBD5E1;
    --paper: #F4F6F9;
    --paper-2: #E7ECF3;
    --line: #D9E0EA;
    --ok: #38BDF8;
    --ink: #0F172A;
    --ink-soft: #56607A;
    --bg: var(--paper);
    --surface: #ffffff;
    --border: var(--line);
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --bg: #0B111F;
      --surface: #16213A;
      --border: #253352;
      --ink: #EAF0FA;
      --ink-soft: #97A3BF;
      --paper-2: #121A2E;
    }
  }
  :root[data-theme="dark"] {
    --bg: #0B111F;
    --surface: #16213A;
    --border: #253352;
    --ink: #EAF0FA;
    --ink-soft: #97A3BF;
    --paper-2: #121A2E;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  body {
    background: var(--bg);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.5;
  }
  .wrap { max-width: 1040px; margin: 0 auto; padding: 0 28px; }

  /* HERO */
  .hero {
    background: var(--navy);
    color: #fff;
    padding: 48px 0 56px;
    position: relative;
    overflow: hidden;
  }
  .hero::after {
    content: "";
    position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
    background: linear-gradient(90deg, var(--sapphire), var(--sky));
  }
  .hero .wrap { text-align: center; }
  .logo-mark { max-width: 380px; width: 100%; height: auto; display: block; margin: 0 auto 4px; }
  .wordmark { max-width: 460px; width: 100%; height: auto; display: block; margin: 0 auto 26px; }
  .hero h1 {
    font-size: clamp(30px, 5vw, 46px); font-weight: 800; line-height: 1.12; max-width: 720px;
    margin: 0 auto;
    font-family: Arial Narrow, "Segoe UI Semibold", sans-serif; letter-spacing: 0.01em;
  }
  .hero p.lede {
    margin: 18px auto 0; font-size: 18px; color: var(--silver); max-width: 560px; line-height: 1.55;
  }
  .hero-ctas { margin-top: 32px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
  .btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 24px; border-radius: 7px; font-weight: 700; font-size: 14.5px;
    text-decoration: none; cursor: pointer; border: none; font-family: inherit;
    text-transform: uppercase; letter-spacing: 0.03em;
  }
  .btn-primary { background: var(--sapphire); color: #fff; }
  .btn-primary:hover { background: #2451EE; }
  .btn-ghost { background: transparent; color: #fff; border: 1.5px solid #33436B; }
  .btn-ghost:hover { border-color: var(--sky); color: var(--sky); }

  .trust-strip {
    background: var(--navy-2); border-top: 1px solid #253352;
    padding: 18px 0;
  }
  .trust-row {
    display: flex; gap: 32px; flex-wrap: wrap; justify-content: center;
    font-size: 13px; color: var(--silver); font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em;
  }
  .trust-row span::before { content: "✓ "; color: var(--sky); }

  /* SECTIONS */
  section { padding: 56px 0; }
  .section-title { font-size: 26px; font-weight: 800; margin-bottom: 10px; }
  .section-lede { color: var(--ink-soft); font-size: 15.5px; max-width: 620px; margin-bottom: 34px; line-height: 1.55; }

  .how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .how-card {
    background: var(--surface); border: 1.5px solid var(--border); border-radius: 10px; padding: 24px;
  }
  .how-num {
    width: 34px; height: 34px; border-radius: 8px; background: var(--navy); color: var(--sky);
    display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 15px; margin-bottom: 14px;
  }
  .how-card h3 { font-size: 16.5px; margin-bottom: 8px; }
  .how-card p { color: var(--ink-soft); font-size: 14px; line-height: 1.55; }

  /* PRICING */
  .pricing-section { background: var(--paper-2); }
  .pricing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .price-card {
    background: var(--surface); border: 1.5px solid var(--border); border-radius: 10px; padding: 28px;
  }
  .price-card.featured { border-color: var(--sapphire); border-width: 2px; position: relative; }
  .price-tag { font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em; color: var(--sapphire); margin-bottom: 8px; }
  .price-num { font-size: 34px; font-weight: 800; font-family: Arial Narrow, sans-serif; margin-bottom: 6px;
    background: linear-gradient(90deg, var(--sapphire), var(--sky)); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .price-card p { color: var(--ink-soft); font-size: 14px; margin-bottom: 16px; }
  .price-list { list-style: none; }
  .price-list li { font-size: 14px; padding: 6px 0; color: var(--ink); }
  .price-list li::before { content: "✓  "; color: var(--sky-dim); font-weight: 800; }

  /* CALCULATOR */
  .calc-box {
    background: var(--navy); color: #fff; border-radius: 12px; padding: 32px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center;
  }
  .calc-inputs label {
    display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700;
    color: var(--silver); margin: 14px 0 6px;
  }
  .calc-inputs label:first-child { margin-top: 0; }
  .calc-inputs input {
    width: 100%; padding: 11px 13px; border-radius: 6px; border: 1.5px solid #2A3B60;
    background: var(--navy-2); color: #fff; font-size: 15px; font-family: inherit; outline: none;
  }
  .calc-inputs input:focus { border-color: var(--sky); }
  .calc-result { text-align: center; }
  .calc-result .label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--silver); font-weight: 700; margin-bottom: 8px; }
  .calc-result .value { font-size: 44px; font-weight: 800; color: var(--sky); font-family: Arial Narrow, sans-serif; }
  .calc-result .sub { font-size: 13px; color: var(--silver); margin-top: 6px; }

  /* CONTACT */
  .contact-section { background: var(--paper-2); }
  .contact-box {
    background: var(--surface); border: 1.5px solid var(--border); border-radius: 12px; padding: 36px;
    max-width: 620px; margin: 0 auto; text-align: center;
  }
  .contact-box h2 { font-size: 24px; margin-bottom: 10px; }
  .contact-box p { color: var(--ink-soft); margin-bottom: 24px; }
  .contact-form { display: grid; gap: 12px; text-align: left; }
  .contact-form label {
    font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft);
  }
  .contact-form input, .contact-form select, .contact-form textarea {
    width: 100%; padding: 10px 12px; border-radius: 6px; border: 1.5px solid var(--border);
    background: var(--surface); color: var(--ink); font-size: 14.5px; font-family: inherit; outline: none;
  }
  .contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--sapphire); }
  .contact-form button { margin-top: 8px; }

  footer {
    background: var(--navy); color: var(--silver); padding: 28px 0; text-align: center; font-size: 13px;
  }
  footer strong { color: #fff; }

  @media (max-width: 720px) {
    .how-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .calc-box { grid-template-columns: 1fr; }
    .trust-row { gap: 16px; font-size: 11.5px; }
    .wrap { padding: 0 18px; }
    .logo-mark { max-width: 260px; }
    .wordmark { max-width: 320px; }
  }