:root{
    /* paleta oscura: se usa solo dentro del radar, para que la "pantalla" siga viéndose bien */
    --navy:#0B1F26;
    --navy-soft:#12303B;
    --navy-softer:#1A3D49;
    --sea:#6FA69B;
    --cream:#F3EFE4;

    /* paleta clara: el resto de la página */
    --bg:#FFFFFF;
    --bg-alt:#F5F7F8;
    --card-bg:#FFFFFF;
    --ink:#16232B;
    --body-text:#4A5560;
    --muted:#818B92;
    --line:#E3E7EA;
    --blue:#2C6E8F;
    --blue-deep:#1B4965;

    /* compartido entre ambos temas */
    --amber:#E8A33D;
    --amber-dim:#8A6529;
    --radius:14px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:'Inter',sans-serif;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  .mono{font-family:'JetBrains Mono',monospace;}
  .brand-name{font-family:'Poppins',sans-serif;font-weight:700;letter-spacing:-0.01em;}
  a{color:inherit;}

  /* ---------- layout helpers ---------- */
  .wrap{max-width:1080px;margin:0 auto;padding:0 24px;}
  section{position:relative;}

  /* ---------- nav ---------- */
  [id]{scroll-margin-top:96px;}
  nav{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,0.92);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;}
  .brand{display:flex;align-items:center;gap:10px;}
  .brand img, .brand svg{height:30px;width:auto;display:block;}
  .nav-menu{list-style:none;display:flex;align-items:center;gap:28px;margin:0;padding:0;}
  .nav-menu a{
    font-size:14px;font-weight:600;color:var(--ink);text-decoration:none;
    font-family:'Inter',sans-serif;
  }
  .nav-menu a:hover{color:var(--blue);}
  .nav-toggle{
    display:none;background:none;border:none;cursor:pointer;padding:8px;
    width:40px;height:40px;position:relative;flex-shrink:0;
  }
  .nav-toggle span{
    display:block;position:absolute;left:8px;right:8px;height:2px;
    background:var(--ink);border-radius:2px;
    transition:transform .25s ease, opacity .2s ease, top .25s ease;
  }
  .nav-toggle span:nth-child(1){top:13px;}
  .nav-toggle span:nth-child(2){top:19px;}
  .nav-toggle span:nth-child(3){top:25px;}
  .nav-toggle.open span:nth-child(1){top:19px;transform:rotate(45deg);}
  .nav-toggle.open span:nth-child(2){opacity:0;}
  .nav-toggle.open span:nth-child(3){top:19px;transform:rotate(-45deg);}

  @media (max-width:760px){
    .nav-toggle{display:block;}
    .nav-menu{
      position:absolute;top:100%;left:0;right:0;
      background:var(--bg);flex-direction:column;align-items:stretch;gap:0;
      max-height:0;overflow:hidden;border-bottom:1px solid var(--line);
      box-shadow:0 8px 20px rgba(16,35,45,0.08);
      transition:max-height .3s ease;
    }
    .nav-menu.open{max-height:260px;}
    .nav-menu li{width:100%;}
    .nav-menu a{display:block;padding:16px 24px;border-top:1px solid var(--line);font-size:15px;}
    .nav-menu li:first-child a{border-top:none;}
  }
  .nav-cta{
    font-family:'JetBrains Mono',monospace;font-size:12.5px;font-weight:600;
    background:var(--amber);color:var(--navy);padding:9px 16px;border-radius:8px;
    text-decoration:none;white-space:nowrap;
  }

  /* ---------- hero ---------- */
  .hero{padding:64px 0 60px;overflow:hidden;}
  .hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:center;}
  @media (max-width:860px){.hero-grid{grid-template-columns:1fr;}}
  .eyebrow{
    font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--blue);
    letter-spacing:0.12em;text-transform:uppercase;margin-bottom:18px;display:flex;align-items:center;gap:8px;
  }
  .eyebrow::before{content:'';width:22px;height:1px;background:var(--blue);display:inline-block;}
  h1{
    font-family:'Inter',sans-serif;font-weight:800;font-size:44px;line-height:1.12;
    margin:0 0 20px;letter-spacing:-0.01em;color:var(--ink);
  }
  h1 em{font-style:normal;color:var(--amber-dim);}
  .hero p.lead{font-size:17px;line-height:1.6;color:var(--body-text);max-width:520px;margin:0 0 30px;}
  .cta-row{display:flex;gap:14px;flex-wrap:wrap;}
  .btn-primary{
    background:var(--amber);color:var(--navy);font-weight:700;padding:14px 24px;border-radius:10px;
    text-decoration:none;font-size:14.5px;display:inline-block;
    box-shadow:0 8px 24px rgba(232,163,61,0.28);
    border:none;font-family:inherit;cursor:pointer;
  }
  .btn-secondary{
    border:1.5px solid var(--blue);color:var(--blue);font-weight:600;padding:13px 22px;border-radius:10px;
    text-decoration:none;font-size:14.5px;display:inline-block;background:var(--bg);
    font-family:inherit;cursor:pointer;
  }

  /* ---------- radar visual (signature element) ---------- */
  .radar-wrap{max-width:480px;margin:0 auto;}
  .radar-box{
    position:relative;aspect-ratio:1/1;
    border-radius:50%;
    background:radial-gradient(circle at 50% 45%, var(--navy-softer) 0%, var(--navy-soft) 55%, var(--navy) 85%);
    border:1px solid rgba(111,166,155,0.25);
    box-shadow:
      0 0 0 1px rgba(0,0,0,0.2),
      0 30px 80px -20px rgba(0,0,0,0.55),
      0 0 90px rgba(111,166,155,0.10),
      inset 0 0 60px rgba(0,0,0,0.35);
    overflow:hidden;
  }
  .radar-crosshair{position:absolute;background:rgba(111,166,155,0.16);}
  .radar-crosshair.v{top:0;bottom:0;left:50%;width:1px;transform:translateX(-50%);}
  .radar-crosshair.h{left:0;right:0;top:50%;height:1px;transform:translateY(-50%);}
  .radar-ring{
    position:absolute;border:1px solid rgba(111,166,155,0.28);border-radius:50%;
    top:50%;left:50%;transform:translate(-50%,-50%);
  }
  .radar-ring.r1{width:20%;height:20%;}
  .radar-ring.r2{width:40%;height:40%;}
  .radar-ring.r3{width:60%;height:60%;}
  .radar-ring.r4{width:80%;height:80%;}
  .radar-ring.r5{width:100%;height:100%;border-color:rgba(111,166,155,0.4);}
  .radar-sweep-wedge{
    position:absolute;inset:0;border-radius:50%;
    background:conic-gradient(from 0deg,
      rgba(111,166,155,0) 0deg,
      rgba(232,163,61,0.5) 3deg,
      rgba(111,166,155,0.28) 22deg,
      rgba(111,166,155,0.08) 60deg,
      rgba(111,166,155,0) 100deg,
      rgba(111,166,155,0) 360deg);
    animation:sweep-spin 5.5s linear infinite;
    mix-blend-mode:screen;
  }
  @keyframes sweep-spin{from{transform:rotate(0deg);}to{transform:rotate(360deg);}}
  .blip{
    position:absolute;width:10px;height:10px;border-radius:50%;background:var(--amber);
    box-shadow:0 0 14px 3px rgba(232,163,61,0.55);
    opacity:0;animation:blip-appear 4s infinite;
    display:flex;align-items:center;justify-content:center;
  }
  .blip::after{
    content:'';position:absolute;inset:-5px;border-radius:50%;
    border:1.5px solid var(--amber);opacity:0;
    animation:ping 4s infinite;
  }
  .blip span{
    position:absolute;top:-25px;left:50%;transform:translateX(-50%);
    font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:500;color:var(--cream);white-space:nowrap;
    background:var(--navy-softer);padding:3px 8px;border-radius:5px;
    border:1px solid rgba(232,163,61,0.4);
    box-shadow:0 4px 12px rgba(0,0,0,0.35);
  }
  @keyframes blip-appear{
    0%,100%{opacity:0;transform:scale(0.3);}
    8%{opacity:1;transform:scale(1);}
    24%{opacity:1;transform:scale(1);}
    32%{opacity:0;transform:scale(0.3);}
  }
  @keyframes ping{
    0%,6%{opacity:0;transform:scale(0.6);}
    9%{opacity:0.85;transform:scale(0.7);}
    26%{opacity:0;transform:scale(2.4);}
    100%{opacity:0;}
  }
  .blip.b1{top:18%;left:68%;animation-delay:0s;}
  .blip.b1::after{animation-delay:0s;}
  .blip.b2{top:72%;left:76%;animation-delay:1s;}
  .blip.b2::after{animation-delay:1s;}
  .blip.b3{top:78%;left:26%;animation-delay:2s;}
  .blip.b3::after{animation-delay:2s;}
  .blip.b4{top:22%;left:20%;animation-delay:3s;}
  .blip.b4::after{animation-delay:3s;}
  .radar-center{
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
    width:8px;height:8px;border-radius:50%;background:var(--cream);
    box-shadow:0 0 10px 2px rgba(243,239,228,0.6);
    z-index:2;
  }
  .radar-caption{
    text-align:center;margin-top:18px;font-family:'JetBrains Mono',monospace;font-size:12px;
    color:var(--muted);letter-spacing:0.04em;
  }
  @media (prefers-reduced-motion: reduce){
    .radar-sweep-wedge,.blip,.blip::after{animation:none !important;}
    .blip{opacity:1;}
    .blip::after{display:none;}
  }

  /* ---------- stat strip ---------- */
  .stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-alt);}
  .stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
  @media (max-width:760px){.stat-grid{grid-template-columns:1fr;}}
  .stat-cell{padding:36px 28px;border-right:1px solid var(--line);}
  .stat-cell:last-child{border-right:none;}
  @media (max-width:760px){.stat-cell{border-right:none;border-bottom:1px solid var(--line);}.stat-cell:last-child{border-bottom:none;}}
  .stat-num{font-family:'JetBrains Mono',monospace;font-weight:700;font-size:34px;color:var(--amber-dim);}
  .stat-label{font-size:13.5px;color:var(--body-text);line-height:1.5;margin-top:8px;}
  .source-note{font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--muted);padding:14px 0 6px;line-height:1.6;}

  /* ---------- gráficas reales ---------- */
  .chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch;}
  @media (max-width:820px){.chart-grid{grid-template-columns:1fr;}}
  .chart-card{
    background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);
    padding:26px;display:flex;flex-direction:column;
    box-shadow:0 1px 3px rgba(16,35,45,0.05);
  }
  .chart-card h3{font-size:15.5px;margin:0 0 4px;font-weight:700;color:var(--ink);}
  .chart-card .chart-sub{font-size:12.5px;color:var(--muted);margin:0 0 16px;line-height:1.5;}
  .donut-row{display:flex;align-items:center;gap:22px;flex:1;}
  .donut-legend{display:flex;flex-direction:column;gap:10px;font-size:13px;}
  .donut-legend .dot{width:9px;height:9px;border-radius:50%;display:inline-block;margin-right:8px;}
  .donut-legend .n1{color:var(--ink);font-weight:600;}
  .donut-legend .n2{color:var(--muted);}
  .bar-row{display:flex;align-items:center;gap:12px;margin:12px 0;}
  .bar-label{width:40%;font-size:12.5px;color:var(--body-text);line-height:1.3;flex-shrink:0;}
  .bar-track{flex:1;background:var(--bg-alt);border-radius:5px;height:20px;position:relative;overflow:hidden;}
  .bar-fill{height:100%;border-radius:5px;background:linear-gradient(90deg, var(--blue), var(--amber));display:flex;align-items:center;justify-content:flex-end;padding-right:8px;}
  .bar-fill span{font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;color:#fff;}
  .chart-source{font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--muted);margin-top:auto;padding-top:14px;line-height:1.5;}

  .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px;}
  @media (max-width:760px){.case-grid{grid-template-columns:1fr;}}
  .case-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:var(--card-bg);box-shadow:0 1px 3px rgba(16,35,45,0.05);}
  .case-card .case-num{font-family:'JetBrains Mono',monospace;font-weight:800;font-size:30px;color:var(--amber-dim);}
  .case-card p{font-size:13.5px;color:var(--body-text);line-height:1.6;margin:8px 0 0;}
  .case-card .chart-source{padding-top:10px;}

  /* ---------- section titles ---------- */
  .section-pad{padding:88px 0;}
  .section-head{max-width:600px;margin-bottom:48px;}
  #autodiagnostico .section-head{
    max-width:760px;margin-left:auto;margin-right:auto;text-align:center;
  }
  #autodiagnostico .eyebrow{display:inline-flex;}
  .section-eyebrow{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--blue);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:12px;}
  h2{font-size:30px;font-weight:800;margin:0 0 14px;letter-spacing:-0.01em;color:var(--ink);}
  .section-head p{color:var(--body-text);font-size:15.5px;line-height:1.6;}

  /* ---------- feature cards ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
  @media (max-width:760px){.card-grid{grid-template-columns:1fr;}}
  .card{
    background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);
    padding:26px;box-shadow:0 1px 3px rgba(16,35,45,0.05);
  }
  .card .tag{font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--amber-dim);letter-spacing:0.08em;margin-bottom:10px;display:block;}
  .card h3{font-size:17px;margin:0 0 8px;font-weight:700;color:var(--ink);}
  .card p{font-size:14px;color:var(--body-text);line-height:1.55;margin:0;}

  /* ---------- process ---------- */
  .process{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative;}
  @media (max-width:760px){.process{grid-template-columns:1fr;}}
  .process-step{padding:0 28px 0 0;position:relative;}
  .process-step:not(:last-child)::after{
    content:'';position:absolute;top:20px;right:-2px;width:calc(100% - 40px);height:1px;
    background:repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px);
  }
  @media (max-width:760px){.process-step:not(:last-child)::after{display:none;}.process-step{padding:0 0 32px 0;}}
  .process-num{font-family:'JetBrains Mono',monospace;color:var(--amber-dim);font-weight:700;font-size:13px;margin-bottom:14px;}
  .process-step h3{font-size:17px;margin:0 0 8px;color:var(--ink);}
  .process-step p{font-size:14px;color:var(--body-text);line-height:1.6;margin:0;}

  /* ---------- proceso + ejemplo, combinados en la misma barra ---------- */
  .proceso-ejemplo-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
  @media (max-width:820px){.proceso-ejemplo-grid{grid-template-columns:1fr;gap:48px;}}
  .proceso-ejemplo-grid h2{margin-top:8px;}
  .proceso-ejemplo-lead{color:var(--body-text);font-size:14.5px;line-height:1.6;margin:10px 0 24px;}
  .process-vertical{margin-top:28px;display:flex;flex-direction:column;}
  .process-step-v{padding:20px 0;border-top:1px solid var(--line);}
  .process-step-v:first-child{padding-top:0;border-top:none;}
  .process-step-v h3{font-size:16px;margin:0 0 6px;color:var(--ink);}
  .process-step-v p{font-size:13.5px;color:var(--body-text);line-height:1.6;margin:0;}
  .score-panel-compact{margin-top:20px;padding:24px;gap:24px;}
  @media (max-width:520px){.score-panel-compact{grid-template-columns:1fr;justify-items:center;text-align:center;}}

  /* ---------- score demo ---------- */
  .score-panel{
    background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);
    padding:32px;display:grid;grid-template-columns:auto 1fr;gap:36px;align-items:center;
    box-shadow:0 1px 3px rgba(16,35,45,0.05);
  }
  @media (max-width:700px){.score-panel{grid-template-columns:1fr;justify-items:center;text-align:center;}}
  .score-dial{
    position:relative;width:150px;height:150px;border-radius:50%;
    background:conic-gradient(var(--amber) 0deg 281deg, var(--bg-alt) 281deg 360deg);
    display:flex;align-items:center;justify-content:center;
  }
  .score-dial::before{content:'';position:absolute;width:118px;height:118px;border-radius:50%;background:var(--card-bg);}
  .score-dial span{position:relative;font-family:'JetBrains Mono',monospace;font-size:30px;font-weight:700;color:var(--ink);}
  .score-dial small{position:relative;top:20px;font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--muted);}
  .score-copy h3{font-size:18px;margin:0 0 10px;color:var(--ink);}
  .score-copy p{font-size:14.5px;color:var(--body-text);line-height:1.6;margin:0 0 6px;}
  .score-copy .fine{font-size:12.5px;color:var(--muted);}

  /* ---------- autodiagnóstico ---------- */
  .quiz-card{
    background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);
    padding:36px;max-width:640px;margin:0 auto;
    box-shadow:0 4px 18px rgba(16,35,45,0.06);
  }
  .quiz-progress-text{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--blue);margin-bottom:10px;}
  .quiz-progress-track{background:var(--bg-alt);border-radius:6px;height:6px;overflow:hidden;margin-bottom:28px;}
  .quiz-progress-fill{height:100%;background:var(--amber);border-radius:6px;transition:width .3s ease;width:0%;}
  .quiz-question{display:none;}
  .quiz-question.active{display:block;animation:fadeIn .25s ease;}
  @keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}
  .quiz-question h3{font-size:19px;margin:0 0 20px;line-height:1.4;color:var(--ink);}
  .quiz-options{display:flex;flex-direction:column;gap:10px;}
  .quiz-option{
    text-align:left;background:var(--bg);border:1px solid var(--line);border-radius:10px;
    padding:14px 18px;color:var(--ink);font-size:14.5px;font-family:'Inter',sans-serif;cursor:pointer;
    transition:border-color .15s ease, background .15s ease;
  }
  .quiz-option:hover{border-color:var(--blue);}
  .quiz-option.selected{border-color:var(--amber);background:rgba(232,163,61,0.1);}
  .quiz-nav{display:flex;justify-content:space-between;margin-top:26px;}
  .quiz-back{background:none;border:none;color:var(--muted);font-size:13.5px;cursor:pointer;padding:8px 0;}
  .quiz-back:disabled{visibility:hidden;}
  .quiz-result{display:none;text-align:center;}
  .quiz-result.active{display:block;animation:fadeIn .3s ease;}
  .quiz-result .score-dial{margin:0 auto 22px;}
  .quiz-result h3{font-size:20px;margin:0 0 14px;color:var(--ink);}
  .quiz-result-notes{text-align:left;list-style:none;padding:0;margin:0 0 26px;max-width:480px;margin-left:auto;margin-right:auto;}
  .quiz-result-notes li{font-size:13.5px;color:var(--body-text);padding:8px 0;border-top:1px solid var(--line);padding-left:22px;position:relative;}
  .quiz-result-notes li::before{position:absolute;left:0;}
  .quiz-result-notes li.ok::before{content:'✓';color:var(--blue);}
  .quiz-result-notes li.warn::before{content:'!';color:var(--amber-dim);}

  /* ---------- diagnóstico por URL ---------- */
  .url-check-row{display:flex;gap:10px;flex-wrap:wrap;}
  .url-check-row input{
    flex:1;min-width:220px;background:var(--bg-alt);border:1px solid var(--line);border-radius:10px;
    padding:14px 16px;color:var(--ink);font-size:14.5px;font-family:'Inter',sans-serif;
  }
  .url-check-row input:focus{outline:none;border-color:var(--blue);}
  .url-check-row .btn-primary{border:none;font-family:inherit;font-size:14.5px;cursor:pointer;}
  .url-check-loading, .url-check-error, .url-check-result{display:none;text-align:center;}
  .url-check-loading.active, .url-check-error.active, .url-check-result.active{display:block;animation:fadeIn .25s ease;}
  .url-spinner{
    width:36px;height:36px;border-radius:50%;margin:10px auto 18px;
    border:3px solid var(--bg-alt);border-top-color:var(--amber);
    animation:spin 0.8s linear infinite;
  }
  @keyframes spin{to{transform:rotate(360deg);}}
  .url-check-loading p{color:var(--muted);font-size:14px;}
  .url-check-error p{color:var(--body-text);font-size:14.5px;margin-bottom:18px;}
  .url-check-error .btn-secondary{margin:0 6px;}
  .url-check-result h3{font-size:20px;margin:0 0 14px;color:var(--ink);}

  /* ---------- pricing ---------- */
  .price-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
  @media (max-width:760px){.price-grid{grid-template-columns:1fr;}}
  .price-card{
    border:1px solid var(--line);border-radius:var(--radius);padding:30px;background:var(--amber);
    box-shadow:0 1px 3px rgba(16,35,45,0.05);
  }
  .price-card.highlight{border-color:var(--ink);border-width:2px;background:var(--amber);box-shadow:0 4px 14px rgba(22,35,43,0.12);}
  .price-card .plabel{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--ink);letter-spacing:0.08em;text-transform:uppercase;}
  .price-card .pnum{font-size:34px;font-weight:800;margin:10px 0 4px;font-family:'JetBrains Mono',monospace;color:var(--ink);}
  .price-card .pnote{font-size:13.5px;color:rgba(22,35,43,0.75);margin-bottom:18px;}
  .price-card ul{list-style:none;padding:0;margin:0;}
  .price-card li{font-size:13.5px;color:rgba(22,35,43,0.85);padding:7px 0;border-top:1px solid rgba(22,35,43,0.18);padding-left:18px;position:relative;}
  .price-card li::before{content:'•';position:absolute;left:0;color:var(--ink);}

  /* ---------- faq ---------- */
  .faq-item{border-bottom:1px solid var(--line);padding:20px 0;}
  .faq-item h4{margin:0 0 8px;font-size:15.5px;color:var(--ink);}
  .faq-item p{margin:0;font-size:14px;color:var(--body-text);line-height:1.6;}

  /* ---------- final cta ---------- */
  .final-cta{
    background:var(--bg-alt);
    border-top:1px solid var(--line);text-align:center;padding:90px 0;
  }
  .final-cta h2{font-size:32px;max-width:640px;margin:0 auto 16px;}
  .final-cta p{color:var(--body-text);max-width:520px;margin:0 auto 32px;font-size:15.5px;}

  /* ---------- formulario de contacto ---------- */
  .contacto-form{max-width:520px;margin:0 auto;text-align:left;}
  .contacto-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  @media (max-width:560px){.contacto-row{grid-template-columns:1fr;}}
  .contacto-field{margin-bottom:16px;}
  .contacto-field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:6px;}
  .contacto-field input, .contacto-field textarea{
    width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;
    padding:12px 14px;font-size:14.5px;font-family:'Inter',sans-serif;color:var(--ink);
  }
  .contacto-field input:focus, .contacto-field textarea:focus{outline:none;border-color:var(--blue);}
  .contacto-field textarea{resize:vertical;min-height:100px;}
  .contacto-honeypot{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;}
  #contactoSubmit{border:none;font-family:inherit;font-size:14.5px;cursor:pointer;}
  #contactoSubmit:disabled{opacity:0.6;cursor:default;}
  .contacto-msg{margin:14px 0 0;font-size:13.5px;}
  .contacto-msg.ok{color:#1E7A4C;}
  .contacto-msg.error{color:#B3261E;}

  footer{border-top:1px solid var(--line);padding:32px 0;background:var(--bg);}
  footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}
  footer p{font-size:12.5px;color:var(--muted);margin:0;font-family:'JetBrains Mono',monospace;}

/* ---------- volver arriba ---------- */
.back-to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:var(--ink);color:#fff;border:none;font-size:20px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(22,35,45,0.25);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s ease, background .15s ease;
  z-index:60;
}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top:hover{background:var(--blue);}
@media (max-width:640px){.back-to-top{right:16px;bottom:16px;width:44px;height:44px;}}