:root {
      --bg: #0a0a0a;
      --surface: #161616;
      --surface-2: rgba(255,255,255,.06);
      --ink: #ffffff;
      --ink-2: rgba(255,255,255,.65);
      --ink-3: rgba(255,255,255,.65);
      --rule: rgba(255,255,255,.07);
      --rule-2: rgba(255,255,255,.14);
      --accent: #ffffff;
      --accent-soft: rgba(255,255,255,.12);
      --accent-ink: #ffffff;
      --btn-bg: #ffffff;
      --btn-ink: #0a0a0a;
      --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
      --mono: "JetBrains Mono", "Source Code Pro", ui-monospace, monospace;
    }
    html.light {
      --bg: #f7f7f7;
      --surface: #ffffff;
      --surface-2: #f0f0f0;
      --ink: #111111;
      --ink-2: rgba(0,0,0,.6);
      --ink-3: rgba(0,0,0,.65);
      --rule: rgba(0,0,0,.08);
      --rule-2: rgba(0,0,0,.15);
      --accent: #111111;
      --accent-soft: rgba(0,0,0,.07);
      --accent-ink: #111111;
      --btn-bg: #111111;
      --btn-ink: #ffffff;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; color-scheme: dark; accent-color: var(--ink); }
    html.light { color-scheme: light; }
    ::selection { background: #d0d0d0; color: #111111; -webkit-text-fill-color: #111111; text-shadow: none; }
    html.light ::selection { background: #333333; color: #ffffff; -webkit-text-fill-color: #ffffff; }
    ::target-text { background: #d0d0d0; color: #111111; }
    :focus { outline-color: var(--ink); }
    section[id], main[id] { scroll-margin-top: 96px; }
    body {
      background: var(--bg);
      color: var(--ink-2);
      font-family: var(--sans);
      font-size: 15px;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; }
    img { max-width: 100%; display: block; }
    h1, h2, h3, h4 { color: var(--ink); }
    .wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

    /* Preview banner (only outside sendell.co) */
    .preview-banner {
      display: none;
      background: var(--accent);
      color: var(--btn-ink);
      font-family: var(--mono);
      font-size: 12px;
      text-align: center;
      padding: 8px 16px;
      letter-spacing: .3px;
    }
    html.is-preview .preview-banner { display: block; }

    /* Navbar (same as sendell.co) */
    .navbar {
      position: sticky; top: 0; z-index: 100;
      background: color-mix(in srgb, var(--bg) 92%, transparent);
      -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--rule);
    }
    .nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 24px; height: 60px; display: flex; align-items: center; gap: 24px; }
    .nav-logo { display: flex; align-items: center; gap: 4px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: -.5px; flex-shrink: 0; }
    .logo-s-svg { display: block; width: 22px; height: 32px; flex-shrink: 0; overflow: visible; }
    .nav-links { display: flex; align-items: center; gap: 20px; flex: 1; }
    .nav-links a { color: var(--ink-3); text-decoration: none; font-size: 13px; font-weight: 500; transition: color .15s; white-space: nowrap; }
    .nav-links a:hover, .nav-links a.active { color: var(--ink); }
    .nav-controls { display: flex; align-items: center; gap: 8px; }
    .theme-toggle-btn { background: transparent; border: 1px solid var(--rule-2); border-radius: 6px; padding: 5px 10px; cursor: pointer; color: var(--ink-2); font-size: 15px; line-height: 1; transition: border-color .2s, color .2s; }
    .theme-toggle-btn:hover { color: var(--ink); border-color: var(--ink-3); }
    .btn-iniciar { flex-shrink: 0; padding: 8px 18px; background: var(--btn-bg); color: var(--btn-ink); border-radius: 8px; font-size: 13px; font-weight: 600; text-decoration: none; transition: opacity .15s; display: inline-flex; align-items: center; }
    .btn-iniciar:hover { opacity: .85; }

    /* Shared bits */
    .section-tag { font-size: 11px; font-weight: 700; letter-spacing: 2px; color: var(--ink-3); text-transform: uppercase; margin: 0 0 12px; display: block; }
    .section-title { font-size: clamp(24px, 4vw, 38px); font-weight: 700; line-height: 1.2; margin: 0 0 12px; letter-spacing: -.3px; }
    .section-sub { font-size: 15px; color: var(--ink-2); line-height: 1.6; max-width: 640px; }
    .section-header { text-align: center; margin-bottom: clamp(28px, 4vw, 48px); }
    .section-header .section-sub { margin: 0 auto; }
    .band { background: var(--surface); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
    html.light .band { background: #f0f0f0; }
    .section { padding: clamp(48px, 7vw, 80px) 0; }
    .btn-primary { padding: 13px 24px; background: var(--btn-bg); border: none; border-radius: 10px; color: var(--btn-ink); font-size: 14px; font-weight: 700; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: opacity .15s; font-family: inherit; }
    .btn-primary:hover { opacity: .88; }
    .btn-secondary { padding: 12px 22px; background: transparent; border: 1px solid var(--rule-2); border-radius: 10px; color: var(--ink); font-size: 14px; font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; transition: border-color .15s; }
    .btn-secondary:hover { border-color: var(--ink-3); }
    .mono { font-family: var(--mono); }
    .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); margin-right: 8px; vertical-align: middle; }
    .pill { display: inline-flex; align-items: center; font-family: var(--mono); font-size: 11px; letter-spacing: .4px; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--rule-2); color: var(--ink-2); }
    .pill.accent { border-color: color-mix(in srgb, var(--accent) 55%, transparent); color: var(--accent-ink); background: var(--accent-soft); }
    .placeholder { font-family: var(--mono); font-size: 12px; color: var(--ink-2); border: 1px dashed var(--ink-3); border-radius: 6px; padding: 2px 8px; display: inline-block; }

    /* Hero */
    .hero { max-width: 1100px; margin: 0 auto; padding: 72px 24px 64px; display: grid; grid-template-columns: 1fr 420px; gap: 56px; align-items: center; }
    .hero-badge { display: inline-flex; align-items: center; padding: 5px 14px; background: var(--surface-2); border: 1px solid var(--rule-2); border-radius: 20px; font-size: 12px; letter-spacing: .5px; color: var(--ink-2); margin-bottom: 20px; text-transform: uppercase; }
    .hero-title { font-size: clamp(2.2rem, 6vw, 3.8rem); font-weight: 800; line-height: 1.08; margin: 0 0 18px; letter-spacing: -.8px; }
    .gradient-text { color: var(--ink); -webkit-text-fill-color: currentColor; }
    .hero-sub { font-size: clamp(15px, 2vw, 17px); color: var(--ink-2); line-height: 1.75; margin: 0 0 28px; max-width: 560px; }
    .hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
    .hero-risk { font-size: 12px; color: var(--ink-3); }
    .spec { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,.35); }
    html.light .spec { box-shadow: 0 20px 60px rgba(0,0,0,.08); }
    .spec-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; border-bottom: 1px solid var(--rule); font-family: var(--mono); font-size: 12px; color: var(--ink-3); }
    .spec-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--rule-2); display: inline-block; }
    .spec-bar span { margin-left: 8px; }
    .spec pre { margin: 0; padding: 20px 20px 22px; font-family: var(--mono); font-size: 13px; line-height: 1.75; color: var(--ink-2); white-space: pre-wrap; }
    .spec .k { color: var(--accent-ink); }
    .spec .s { color: var(--ink); }
    .spec .c { color: var(--ink-3); }
    .spec-foot { display: flex; justify-content: space-between; gap: 12px; padding: 12px 16px; border-top: 1px solid var(--rule); font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
    .spec-foot b { color: var(--accent-ink); font-weight: 500; }

    /* Metrics */
    .metrics { padding: 44px 24px; text-align: center; }
    .metrics-grid { max-width: 920px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
    .metric-value { font-size: clamp(26px, 4vw, 38px); font-weight: 800; color: var(--ink); letter-spacing: -1px; line-height: 1.1; }
    .metric-label { font-size: 12px; color: var(--ink-3); line-height: 1.4; margin-top: 6px; }

    /* Services */
    .cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .cards-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
    .card { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; padding: 28px 24px; transition: border-color .2s; }
    .card:hover { border-color: var(--rule-2); }
    .card-icon { font-family: var(--mono); font-size: 12px; color: var(--accent-ink); margin-bottom: 14px; letter-spacing: .5px; }
    .card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; letter-spacing: -.2px; }
    .card p { font-size: 14px; line-height: 1.65; }
    .card ul { list-style: none; margin-top: 16px; display: grid; gap: 8px; }
    .card li { font-size: 14px; padding-left: 18px; position: relative; color: var(--ink-2); }
    .card li::before { content: ""; position: absolute; left: 0; top: .62em; width: 8px; height: 1px; background: var(--accent); }
    .card .pill { margin-top: 18px; }

    /* Portfolio */
    .cases { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .case { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; overflow: hidden; display: flex; flex-direction: column; }
    .case-head { padding: 22px 24px 14px; display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
    .case-head h3 { font-size: 18px; font-weight: 700; }
    .case-head p { font-size: 13px; color: var(--ink-3); margin-top: 2px; }
    .case-thread { padding: 4px 24px 22px; display: grid; gap: 14px; flex: 1; align-content: start; }
    .msg { display: grid; grid-template-columns: 30px 1fr; gap: 10px; align-items: start; }
    .ava { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-family: var(--mono); font-size: 10px; font-weight: 500; color: var(--ink-2); background: var(--surface-2); border: 1px solid var(--rule-2); }
    .ava.team { background: var(--accent-soft); color: var(--accent-ink); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
    .who { font-size: 12px; color: var(--ink-3); margin-bottom: 3px; }
    .who b { color: var(--ink); font-weight: 600; margin-right: 6px; }
    .bubble { background: var(--surface-2); border: 1px solid var(--rule); border-radius: 4px 12px 12px 12px; padding: 10px 12px; font-size: 14px; color: var(--ink-2); }
    html.light .bubble { background: #f7f7f7; }
    .bubble .meta { font-family: var(--mono); font-size: 12px; color: var(--ink); margin-top: 6px; line-height: 1.6; }
    .shot { margin-top: 10px; border-radius: 8px; overflow: hidden; border: 1px solid var(--rule); background: var(--bg); }
    .shot img { width: 100%; height: auto; }
    .approve { font-size: 12px; color: var(--accent-ink); font-family: var(--mono); margin-top: 6px; }
    .case-foot { border-top: 1px solid var(--rule); padding: 12px 24px; font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: .4px; }
    .cases-note { margin-top: 20px; font-size: 13px; color: var(--ink-3); text-align: center; }
    .cases-note a { color: var(--accent-ink); text-decoration: none; }


    /* Portfolio (Steam Workshop) */
    .portfolio { border-top: 1px solid var(--rule); }
    .pf-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .pf-card { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; overflow: hidden; display: flex; flex-direction: column; transition: border-color .2s; }
    .pf-card:hover { border-color: var(--rule-2); }
    .pf-img { aspect-ratio: 1 / 1; overflow: hidden; background: var(--bg); border-bottom: 1px solid var(--rule); }
    .pf-img img { width: 100%; height: 100%; object-fit: cover; }
    .pf-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
    .pf-kind { font-family: var(--mono); font-size: 11px; color: var(--accent-ink); letter-spacing: .4px; }
    .pf-body h3 { font-size: 16px; font-weight: 700; letter-spacing: -.2px; }
    .pf-body p { font-size: 14px; line-height: 1.6; flex: 1; }
    .pf-meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 4px; }
    .pf-stat { font-family: var(--mono); font-size: 12px; color: var(--ink); }
    .pf-link { margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--ink); text-decoration: none; display: inline-flex; gap: 6px; }
    .pf-link:hover { color: var(--accent-ink); }
    .pf-foot { margin-top: 28px; display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; }
    .pf-foot p { font-size: 12px; color: var(--ink-3); max-width: 680px; }
    .how-strip .placeholder { font-size: 11px; }

    /* How */
    .how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .how-step { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; padding: 26px 22px; transition: border-color .2s; }
    .how-step:hover { border-color: var(--rule-2); }
    .how-num { font-size: 38px; font-weight: 800; color: var(--ink-3); line-height: 1; margin-bottom: 12px; font-variant-numeric: tabular-nums; }
    .how-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
    .how-desc { font-size: 14px; line-height: 1.65; }
    .how-strip { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

    /* Pricing */
    .tiers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .tier { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; padding: 24px 20px; display: flex; flex-direction: column; }
    html.light .band .tier { background: #fff; }
    .tier-name { font-family: var(--mono); font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--ink-3); margin-bottom: 8px; }
    .tier h3 { font-size: 17px; font-weight: 700; margin-bottom: 14px; }
    .tier-price { font-size: 13px; color: var(--ink-3); margin-bottom: 4px; }
    .tier-price b { display: block; font-size: 28px; font-weight: 800; color: var(--ink); letter-spacing: -.8px; line-height: 1.15; }
    .tier-price small { display: block; font-size: 13px; color: var(--ink-2); font-weight: 500; margin-top: 2px; }
    .tier ul { list-style: none; margin-top: 16px; display: grid; gap: 7px; flex: 1; align-content: start; }
    .tier li { font-size: 13px; padding-left: 16px; position: relative; }
    .tier li::before { content: "·"; position: absolute; left: 4px; color: var(--accent-ink); font-weight: 700; }
    .tier.featured { border-color: color-mix(in srgb, var(--accent) 50%, transparent); box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent) inset; }
    .tiers-note { margin-top: 20px; text-align: center; font-size: 13px; color: var(--ink-3); }

    /* Rules */
    .rules { display: grid; grid-template-columns: 1.1fr 1fr; gap: 20px; align-items: stretch; }
    .rules-main { background: var(--surface); border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent); border-radius: 16px; padding: 30px 28px; }
    .rules-main h3 { font-size: 20px; margin-bottom: 10px; letter-spacing: -.2px; }
    .rules-main blockquote { margin: 16px 0 18px; padding: 12px 16px; border-left: 2px solid var(--accent); background: var(--accent-soft); border-radius: 0 8px 8px 0; font-size: 14px; color: var(--ink); }
    .rules-main blockquote cite { display: block; font-style: normal; font-size: 12px; color: var(--ink-3); margin-top: 6px; }
    .rules-main a { color: var(--accent-ink); }
    .rules-list { list-style: none; display: grid; gap: 12px; }
    .rules-list li { display: grid; grid-template-columns: 22px 1fr; gap: 8px; font-size: 14px; }
    .rules-list .no { color: var(--ink); font-weight: 700; font-family: var(--mono); }
    .rules-list .yes { color: var(--accent-ink); font-weight: 700; font-family: var(--mono); }
    .rules-side { display: grid; gap: 20px; }
    .rules-side .card h3 { font-size: 16px; }

    /* Payments */
    .pay { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .pay .card h3 { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
    .pay-link { margin-top: 16px; gap: 8px; }
    .pay-link span { font-family: var(--mono); font-weight: 500; }
    .pay-qr { margin-top: 14px; width: 360px; max-width: 100%; border: 1px solid var(--rule-2); border-radius: 12px; background: #ffffff; overflow: hidden; }
    .pay-qr img { display: block; width: 100%; height: auto; }
    .pay-small { margin-top: 12px; font-size: 13px; color: var(--ink-3); }
    .pay-note { margin-top: 20px; font-size: 13px; color: var(--ink-3); text-align: center; max-width: 720px; margin-left: auto; margin-right: auto; }

    /* FAQ */
    .faq { max-width: 820px; margin: 0 auto; display: grid; gap: 10px; }
    .faq details { background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 0 20px; transition: border-color .2s; }
    .faq details[open] { border-color: var(--rule-2); }
    .faq summary { cursor: pointer; list-style: none; padding: 16px 0; font-weight: 600; color: var(--ink); font-size: 15px; display: flex; justify-content: space-between; gap: 16px; }
    .faq summary::-webkit-details-marker { display: none; }
    .faq summary::after { content: "+"; font-family: var(--mono); color: var(--ink-3); }
    .faq details[open] summary::after { content: "–"; }
    .faq details p { padding: 0 0 18px; font-size: 14px; }

    /* Form */
    .brief { display: grid; grid-template-columns: 1fr 1.5fr; gap: 40px; align-items: start; }
    .brief-aside .section-title { text-align: left; }
    .brief-aside ul { list-style: none; margin-top: 24px; display: grid; gap: 12px; }
    .brief-aside li { font-size: 14px; display: grid; grid-template-columns: 24px 1fr; }
    .brief-aside li span { font-family: var(--mono); color: var(--accent-ink); font-size: 12px; padding-top: 2px; }
    form.brief-form { background: var(--surface); border: 1px solid var(--rule); border-radius: 16px; padding: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; }
    html.light .band form.brief-form { background: #fff; }
    .field { display: grid; gap: 6px; align-content: start; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 12px; font-weight: 600; color: var(--ink); letter-spacing: .2px; }
    .field label em { font-style: normal; color: var(--ink-3); font-weight: 400; }
    .field input:not([type=radio]):not([type=checkbox]), .field select, .field textarea {
      width: 100%; font: inherit; font-size: 14px; color: var(--ink);
      background: var(--bg); border: 1px solid var(--rule-2); border-radius: 10px; padding: 11px 12px;
      transition: border-color .15s, box-shadow .15s; caret-color: var(--accent);
    }
    .field textarea { min-height: 110px; resize: vertical; }
    .field input:not([type=radio]):focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
    .radios { display: flex; gap: 10px; flex-wrap: wrap; }
    .radios label { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; font-size: 14px; color: var(--ink-2); border: 1px solid var(--rule-2); border-radius: 10px; padding: 9px 14px; cursor: pointer; }
    .radios input { accent-color: var(--accent); width: 15px; height: 15px; margin: 0; }
    .check { grid-column: 1 / -1; display: grid; grid-template-columns: 20px 1fr; gap: 10px; font-size: 13px; color: var(--ink-2); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); border-radius: 10px; padding: 12px 14px; }
    .check input { accent-color: var(--accent); width: 16px; height: 16px; margin-top: 2px; }
    .check a { color: var(--accent-ink); }
    .form-actions { grid-column: 1 / -1; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
    .form-status { font-size: 13px; }
    .form-status.ok { color: var(--accent-ink); }
    .form-status.err { color: var(--ink); font-weight: 600; }
    .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

    /* Final CTA */
    .final-cta { max-width: 700px; margin: 0 auto; padding: 96px 24px; text-align: center; }
    .final-cta h2 { font-size: clamp(28px, 5vw, 44px); font-weight: 800; letter-spacing: -.5px; margin-bottom: 12px; }
    .final-cta p { font-size: 16px; margin-bottom: 30px; }
    .final-cta .hero-ctas { justify-content: center; }

    /* Footer (same as sendell.co) */
    .sendell-footer { border-top: 1px solid var(--rule); padding: 48px 24px 20px; }
    .footer-inner { max-width: 1100px; margin: 0 auto; }
    .footer-top { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 32px; margin-bottom: 32px; }
    .footer-logo { display: flex; align-items: center; gap: 4px; color: var(--ink-3); text-decoration: none; font-size: 13px; font-weight: 700; }
    .footer-logo .logo-s-svg { width: 14px; height: 20px; }
    .footer-columns { display: flex; gap: 48px; flex-wrap: wrap; }
    .footer-col { display: flex; flex-direction: column; gap: 8px; }
    .footer-col-title { font-size: 11px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--ink-2); margin-bottom: 4px; }
    .footer-col a { font-size: 13px; color: var(--ink-3); text-decoration: none; transition: color .15s; }
    .footer-col a:hover { color: var(--ink-2); }
    .footer-divider { height: 1px; background: var(--rule); margin-bottom: 14px; }
    .footer-disclaimer { font-size: 12px; color: var(--ink-3); margin-bottom: 14px; line-height: 1.6; }
    .footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 12px; color: var(--ink-3); }
    .footer-legal { font-size: 11px; color: var(--ink-3); }

    @media (max-width: 960px) {
      .hero { grid-template-columns: 1fr; padding-top: 56px; }
      .cards-3, .how-grid, .pf-grid { grid-template-columns: 1fr 1fr; }
      .tiers { grid-template-columns: 1fr 1fr; }
      .cases, .rules, .brief { grid-template-columns: 1fr; }
    }
    @media (max-width: 640px) {
      .nav-links { display: none; }
      .nav-controls { margin-left: auto; }
      .metrics-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
      .cards-3, .cards-2, .how-grid, .tiers, .pay, .pf-grid { grid-template-columns: 1fr; }
      form.brief-form { grid-template-columns: 1fr; padding: 20px; }
      .btn-iniciar { display: none; }
    }
      :focus-visible { outline: 3px solid var(--ink); outline-offset: 4px; }
    .skip-link { position: fixed; left: 16px; top: -80px; z-index: 999; background: var(--surface); color: var(--ink); padding: 16px; }
    .skip-link:focus { top: 8px; }
    .field { min-width: 0; }
    .field fieldset { border: 0; padding: 0; margin: 0; }
    .field legend { margin-bottom: 10px; }
    p, a, .form-status { overflow-wrap: anywhere; }
    @media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; } }
      .mobile-menu { display: none; font: inherit; padding: 6px 10px; color: var(--ink); background: var(--surface); border: 1px solid var(--rule-2); border-radius: 6px; }
    @media (max-width: 640px) { .mobile-menu { display: block; } .nav-links.is-open { display: flex; position: absolute; top: 60px; left: 0; right: 0; padding: 20px; background: var(--surface); flex-wrap: wrap; } }

/* Photos are grayscale at presentation only; source files stay unchanged. */
.cases img, .pf-img img { filter: grayscale(1); }
.cases img { width: 100%; height: 240px; object-fit: contain; margin-top: 20px; background: var(--bg); border-radius: 8px; }
a:visited { color: inherit; }
.btn-primary:visited, .btn-iniciar:visited { color: var(--btn-ink); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline-color: var(--ink); }
.btn-primary, .btn-iniciar { max-width: 100%; white-space: normal; text-align: center; justify-content: center; box-shadow: 0 0 18px rgba(255,255,255,.10); }
html.light .btn-primary, html.light .btn-iniciar { box-shadow: 0 0 12px rgba(0,0,0,.08); }
.gradient-text { text-shadow: 0 0 22px rgba(255,255,255,.12); }
.hero > *, .wrap > *, .spec, .card, .tier, .how-step, .pf-card, .brief-aside, .nav-inner > * { min-width: 0; }
.spec-foot { flex-wrap: wrap; }
.spec pre { overflow-wrap: anywhere; }
#contacto-directo { width: 100%; line-height: 1.8; }
#contacto-directo p + p { margin-top: 20px; }
#contacto-directo h3 { margin-bottom: 16px; }
#contacto-directo .btn-primary { padding: 16px 22px; line-height: 1.5; }
#privacidad { padding-top: 20px; border-top: 1px solid var(--rule-2); }
.brief-aside li { gap: 10px; }
.nav-inner { min-height: 60px; height: auto; padding-top: 12px; padding-bottom: 12px; gap: 16px; flex-wrap: wrap; }
@media (max-width: 1100px) { .nav-links { display: none; } .mobile-menu { display: block; } .nav-controls { margin-left: auto; } .nav-links.is-open { display: flex; position: absolute; top: 100%; left: 0; right: 0; padding: 20px; background: var(--surface); flex-wrap: wrap; } }
@media (max-width: 640px) { .hero, .wrap { padding-left: 20px; padding-right: 20px; } .hero-title { font-size: clamp(1.9rem, 8vw, 2.6rem); } .hero-ctas > a { width: 100%; } .card { padding: 24px 20px; } .spec pre { padding: 18px 14px; } }

/* Manual support: balanced panel, intact QR and quiet zone. */
#aportes .support-grid { max-width: 1052px; width: calc(100% - 48px); padding: clamp(24px, 4vw, 48px); background: var(--surface); border: 1px solid var(--rule-2); border-radius: 20px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 320px); gap: clamp(28px, 4vw, 48px); align-items: center; }
.support-copy { min-width: 0; max-width: 560px; }
.support-copy p { margin-top: 16px; line-height: 1.75; }
.support-qr { margin: 0; min-width: 0; width: 100%; max-width: 320px; justify-self: center; text-align: center; }
.support-qr img { display: block; width: 100%; height: auto; background: #fff; filter: none; border: 12px solid #fff; }
.support-qr figcaption { margin-top: 16px; font-size: 13px; line-height: 1.7; color: var(--ink-2); overflow-wrap: anywhere; }
.support-qr a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 760px) { #aportes .support-grid { grid-template-columns: minmax(0, 1fr); width: calc(100% - 40px); gap: 28px; } .support-copy { max-width: none; } }
@media (max-width: 640px) { .hero { gap: 32px; padding-top: 40px; padding-bottom: 48px; } .final-cta { padding-top: 64px; padding-bottom: 64px; } .footer-columns { gap: 28px; } }