:root{
    --navy-990:#020617;
    --navy-970:#040b18;
    --navy-950:#050d1c;
    --navy-900:#081226;
    --navy-850:#09182f;
    --navy-800:#0c1b36;
    --navy-700:#12264a;
    --blue-700:#1d4ed8;
    --blue-600:#2563eb;
    --blue-500:#3b82f6;
    --blue-400:#60a5fa;
    --cyan-400:#22d3ee;
    --cyan-300:#67e8f9;
    --green-400:#34d399;
    --ink-900:#0f172a;
    --ink-700:#334155;
    --ink-600:#475569;
    --ink-500:#64748b;
    --bg-light:#f1f5f9;
    --bg-lighter:#f8fafc;
    --card:#ffffff;
    --border:#e2e8f0;
    --border-dark:rgba(148,163,184,.18);
    --radius:18px;
    --radius-sm:12px;
    --shadow:0 18px 45px rgba(2,6,23,.10);
    --shadow-deep:0 30px 80px rgba(0,0,0,.42);
    --grad-accent:linear-gradient(90deg,var(--blue-600),var(--cyan-400));
    --grad-card:linear-gradient(155deg,rgba(255,255,255,.08),rgba(255,255,255,.025));
    font-size:16px;
  }

  *{
    margin:0;
    padding:0;
    box-sizing:border-box
  }

  html{
    scroll-behavior:smooth
  }

  body{
    font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
    color:var(--ink-900);background:var(--bg-lighter);
    line-height:1.6;-webkit-font-smoothing:antialiased;
  }

  a{
    text-decoration:none;color:inherit
  }

  button,input,select,textarea{
    font:inherit
  }

  .container{
    max-width:1180px;margin:0 auto;padding:0 24px
  }

  /* ===== Navegación y logotipo ===== */
  .nav{
    position:sticky;
    top:0;
    z-index:80;
    background:rgba(255,255,255,.92);
    border-bottom:1px solid var(--border);
    backdrop-filter:blur(18px);
  }

  .nav-inner{
    position:relative;
    max-width:1260px;
    margin:0 auto;
    padding:12px 24px;
    display:flex;
    align-items:center;
    gap:28px;
  }

  .brand{
    display:flex;
    align-items:center;
    min-width:0;
  }

  .brand-logo{
    width:clamp(180px,18vw,230px);
    flex:0 1 230px;
  }

  .logo-viewport{
    display:block;
    width:100%;
  }

  .logo-viewport img{
    display:block;
    width:100%;
    height:auto;
    object-fit:contain;
  }

  .nav-links{
    display:flex;
    align-items:center;
    gap:24px;
    margin-left:auto;
  }

  .nav-links a{
    font-size:.9rem;
    font-weight:650;
    transition:color .16s,opacity .16s;
  }

  .nav-links a:hover{
    color:var(--blue-600);
  }

  .menu-toggle{
    display:none;
    width:44px;
    height:44px;
    margin-left:auto;
    padding:10px;
    border:1px solid var(--border);
    border-radius:12px;
    background:#fff;
    cursor:pointer;
  }

  .menu-toggle span{
    display:block;
    width:100%;
    height:2px;
    margin:5px 0;
    border-radius:999px;
    background:var(--ink-900);
    transition:transform .2s,opacity .2s;
  }

  .menu-toggle.is-open span:nth-child(1){
    transform:translateY(7px) rotate(45deg);
  }

  .menu-toggle.is-open span:nth-child(2){
    opacity:0;
  }

  .menu-toggle.is-open span:nth-child(3){
    transform:translateY(-7px) rotate(-45deg);
  }

  .menu-toggle:focus-visible{
    outline:3px solid var(--blue-400);
    outline-offset:2px;
  }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;border-radius:999px;
    font-weight:750;
    font-size:.92rem;
    padding:12px 20px;
    cursor:pointer;
    border:0;
    transition:transform .16s,box-shadow .16s,background .16s,color .16s
  }

  .btn:focus-visible{
    outline:3px solid var(--blue-400);
    outline-offset:2px
  }

  .btn-primary{
    background:linear-gradient(135deg,var(--blue-600),#1d4ed8 55%,var(--cyan-400));
    color:#fff;
    box-shadow:0 12px 25px rgba(37,99,235,.34)
  }

  .btn-primary:hover{
    transform:translateY(-2px);
    box-shadow:0 16px 34px rgba(37,99,235,.42)
  }

  .btn-dark{
    background:rgba(255,255,255,.06);
    color:#fff;
    border:1px solid rgba(255,255,255,.18)
  }

  .btn-dark:hover{
    background:rgba(255,255,255,.12);
    transform:translateY(-1px)
  }

  .btn-ghost-dark{
    color:#fff;
    border:1px solid rgba(255,255,255,.3);
    background:transparent;
  }

  .btn-ghost-dark:hover{
    background:rgba(255,255,255,.1);
    transform:translateY(-1px);
  }


  .nav-cta{
    padding:9px 17px;
    font-size:.86rem;
  }

  /* ===== Hero ===== */
  .diagnostic-hero{
    position:relative;overflow:hidden;color:#fff;padding:92px 0 76px;background:
      radial-gradient(900px 500px at 78% -8%, rgba(37,99,235,.45), transparent 62%),
      radial-gradient(680px 420px at 12% 108%, rgba(34,211,238,.16), transparent 58%),
      radial-gradient(480px 320px at 58% 44%, rgba(96,165,250,.12), transparent 68%),
      linear-gradient(155deg,var(--navy-900) 0%,var(--navy-950) 48%,var(--navy-990) 100%);
  }

  .diagnostic-hero:before{
    content:"";
    position:absolute;
    inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
    background-size:54px 54px;
    mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 86%);
    pointer-events:none
  }

  .diagnostic-hero:after{
    content:"";
    position:absolute;
    left:50%;
    bottom:-160px;
    width:980px;
    height:280px;
    transform:translateX(-50%);
    background:radial-gradient(closest-side,rgba(37,99,235,.22),transparent 72%);
    pointer-events:none
  }

  .hero-grid{
    position:relative;
    z-index:1;
    display:grid;
    grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);
    gap:58px;
    align-items:center
  }

  .kicker{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
    margin-bottom:18px
  }

  .pill{
    display:inline-flex;
    align-items:center;
    gap:8px;
    border-radius:999px;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.14);
    color:#dbeafe;
    padding:8px 13px;
    font-size:.77rem;
    font-weight:750;
    letter-spacing:.02em
  }

  .pulse{
    width:8px;
    height:8px;
    border-radius:50%;
    background:var(--green-400);
    box-shadow:0 0 0 6px rgba(52,211,153,.12)
  }

  h1{
    font-size:clamp(2.35rem,4.8vw,4.45rem);
    line-height:.98;
    letter-spacing:-.055em;
    font-weight:900;
    margin-bottom:24px;
    max-width:760px
  }

  .hero-sub{
    font-size:1.08rem;
    color:#c7d6eb;
    max-width:660px;
    margin-bottom:30px
  }

  .hero-sub strong{
    color:#fff
  }

  .hero-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin-bottom:24px
  }

  .signal-row{
    display:flex;
    gap:10px;
    flex-wrap:wrap
  }

  .signal{
    border:1px solid rgba(255,255,255,.14);
    background:rgba(255,255,255,.06);
    color:#d9e8ff;
    border-radius:999px;
    padding:8px 14px;
    font-size:.78rem;
    font-weight:650
  }

  .control-card{
    position:relative;
    border:1px solid rgba(255,255,255,.16);
    background:linear-gradient(160deg,rgba(15,31,61,.96),rgba(5,13,28,.96));
    border-radius:24px;
    padding:22px;
    box-shadow:var(--shadow-deep);
    overflow:hidden
  }

  .control-card:before{
    content:"";
    position:absolute;
    inset:-80px -120px auto auto;
    width:280px;
    height:280px;
    background:radial-gradient(closest-side,rgba(34,211,238,.24),transparent 70%);
    pointer-events:none
  }

  .window-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-bottom:22px;
    position:relative;
    z-index:1
  }

  .dots{
    display:flex;
    gap:7px
  }

  .dots span{
    width:10px;
    height:10px;
    border-radius:50%;
    background:#2a3d65
  }
  
  .dots span:nth-child(2){
    background:var(--cyan-400)
  }
    
  .dots span:nth-child(3){
    background:var(--blue-500)
  }

  .window-label{
    font-size:.66rem;
    text-transform:uppercase;
    letter-spacing:.16em;color:#8da4c7;
    font-weight:850
  }

  .loop-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    border:1px solid rgba(103,232,249,.22);
    background:rgba(34,211,238,.08);
    color:#a5f3fc;
    border-radius:999px;
    padding:7px 12px;
    font-size:.76rem;
    font-weight:800;
    margin-bottom:14px
  }

  .control-card h2{
    font-size:1.35rem;
    line-height:1.15;
    letter-spacing:-.03em;
    margin-bottom:18px;
    color:#fff
  }

  .status-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:12px;
    margin-bottom:18px
  }

  .status-box{
    border:1px solid rgba(255,255,255,.11);
    border-radius:14px;
    background:rgba(255,255,255,.045);
    padding:14px
  }

  .status-box span{
    display:block;
    color:#8fa6c9;
    font-size:.72rem;
    font-weight:750;
    text-transform:uppercase;
    letter-spacing:.1em;
    margin-bottom:5px
  }

  .status-box strong{
    font-size:1rem;
    color:#fff
  }

  .checklist{
    border:1px solid rgba(255,255,255,.10);
    border-radius:16px;
    background:rgba(255,255,255,.04);
    padding:16px;
    display:grid;
    gap:10px
  }

  .checkline{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    color:#cfe0f5;
    font-size:.9rem
  }
  
  .checkline b{
    color:#67e8f9;
    font-size:.78rem
  }

  .mini-cta{
    width:100%;
    margin-top:18px
  }

  /* ===== Secciones y componentes ===== */
  section{
    padding:88px 0
  }

  #ia,
  #seguridad,
  #metodo,
  #precios,
  #contacto-alcatech,
  #cta-diagnostico-home,
  #formulario{
    padding-top:160px;
    padding-bottom:160px;
    scroll-margin-top:78px;
  }

  .section-dark{
    background:linear-gradient(180deg,var(--navy-990),var(--navy-950));
    color:#fff
  }
  
  .section-light{
    background:var(--bg-light)
  }

  .section-kicker{
    text-align:center;
    font-size:.74rem;
    letter-spacing:.16em;
    text-transform:uppercase;
    color:var(--blue-500);
    font-weight:850;
    margin-bottom:13px
  }
  
  .section-dark .section-kicker{
    color:var(--cyan-300)
  }

  .section-title{
    text-align:center;
    max-width:820px;
    margin:0 auto;
    font-size:clamp(1.8rem,3.2vw,2.65rem);
    line-height:1.12;
    letter-spacing:-.04em;
    font-weight:900
  }

  .section-sub{
    text-align:justify;
    color:var(--ink-600);
    max-width:710px;
    margin:18px auto 0
  }
  
  .section-dark .section-sub{
    color:#bed0eb
  }

  .split{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:26px;
    margin-top:42px
  }

  .problem-card,.solution-card{
    border-radius:24px;
    padding:30px;
    border:1px solid var(--border);
    background:#fff;
    box-shadow:var(--shadow);
    transition:
      transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
      box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1),
      border-color 0.45s ease;
    will-change: transform;
}

.problem-card:hover,
.solution-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 55px rgba(2, 6, 23, 0.16);
}

  .solution-card{
    background:linear-gradient(150deg,var(--navy-800),var(--navy-950));
    color:#fff;border-color:rgba(255,255,255,.10)}

  .problem-card h3,.solution-card h3{
    font-size:1.15rem;
    letter-spacing:-.02em;
    margin-bottom:16px
  }

  .solution-card p,.solution-card ul li{
    color:#d3e0f4
  }

  .list{
    display:grid;gap:12px;
    list-style:none
  }
  
  .list li{
    display:flex;
    gap:10px;
    color:var(--ink-600);
    font-size:.94rem
  }
  
  .list li:before{
    content:"";
    width:9px;
    height:9px;
    border-radius:50%;
    background:var(--blue-600);
    margin-top:8px;
    flex:0 0 auto
  }

  .solution-card .list li:before{
    background:var(--cyan-400)
  }

  .cards-3{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    margin-top:46px
  }

  .cards-4{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
    margin-top:46px
  }

.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.45s ease;
  will-change: transform;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 50px rgba(2, 6, 23, 0.15);
  border-color: rgba(59, 130, 246, 0.25);
}
  
  .card:before{
    content:"";
    position:absolute;
    inset:0 0 auto;
    height:4px;
    background:var(--grad-accent)
  }

  .card.dark{
    background:var(--grad-card);
    border-color:var(--border-dark);
    box-shadow:none;
    color:#fff
  }
  
  .card.dark:before{
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(103,232,249,.5),transparent)
  }

  .card-tag{
    color:var(--blue-600);
    font-size:.78rem;
    text-transform:uppercase;
    letter-spacing:.12em;
    font-weight:850;
    margin-bottom:12px
  }
  
  .dark .card-tag{
    color:var(--cyan-300)
  }

  .card h3{
    font-size:1.07rem;
    line-height:1.25;
    letter-spacing:-.02em;
    margin-bottom:10px
  }
  
  .card p{
    color:var(--ink-600);
    font-size:.92rem
  }
  
  .dark p{
    color:#bfd0e8
  }

  .price{
    font-size:1.65rem;
    font-weight:900;
    letter-spacing:-.04em;
    margin:14px 0 8px
  }
  
  .price span{
    font-size:.84rem;
    color:var(--ink-500);
    font-weight:700
  }
  
  .dark .price span{
    color:#9fb3d1
  }

  .features{
    margin-top:16px;
    display:grid;
    gap:9px;
    list-style:none
  }
  
  .features li{
    display:flex;
    gap:9px;
    color:var(--ink-600);
    font-size:.87rem
  }
  
  .features li:before{
    content:"✓";
    color:var(--blue-600);
    font-weight:900
  }
  
  .dark .features li{
    color:#d6e3f7
  }
  
  .dark .features li:before{
    color:var(--cyan-300)
  }

  .badge-popular{
    position:absolute;
    top:16px;
    right:16px;
    background:linear-gradient(135deg,var(--blue-600),var(--cyan-400));
    color:#fff;
    border-radius:999px;
    padding:5px 10px;
    font-size:.67rem;
    font-weight:850;
    letter-spacing:.04em
  }

  .process{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:16px;margin-top:46px
  }
  
  .process-step{
    position:relative;
    border:1px solid rgba(255,255,255,.12);
    background:rgba(255,255,255,.045);
    border-radius:20px;
    padding:24px;
    color:#fff
  }
  
  .process-step strong{
    display:grid;
    place-items:center;
    width:42px;
    height:42px;
    border-radius:13px;
    background:rgba(37,99,235,.28);
    border:1px solid rgba(96,165,250,.34);
    color:#93c5fd;
    margin-bottom:15px
  }
  
  .process-step h3{
    font-size:1rem;
    margin-bottom:8px
  }
  
  .process-step p{
    color:#bed0eb;
    font-size:.88rem
  }

  .table-wrap{
    margin-top:38px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:22px;
    box-shadow:var(--shadow);
    overflow:hidden
  }
  
  .pricing-table{
    width:100%;
    border-collapse:collapse
  }
  
  .pricing-table th{
    background:var(--navy-950);
    color:#fff;
    text-align:left;
    font-size:.82rem;
    letter-spacing:.08em;
    text-transform:uppercase;
    padding:16px
  }
  
  .pricing-table td{
    padding:18px 16px;
    border-bottom:1px solid var(--border);
    font-size:.92rem;
    color:var(--ink-600)
  }
  
  .pricing-table tr:last-child td{
    border-bottom:0
  }
  
  .pricing-table td:first-child{
    font-weight:800;color:var(--ink-900)
  }

  /* ===== Formulario ===== */
  .form-section{
    background:linear-gradient(180deg,var(--navy-950) 0%,var(--navy-990) 100%);
    color:#fff;
    padding-top:92px
  }

  .form-shell{
    display:grid;
    grid-template-columns:minmax(280px,.78fr) minmax(0,1.22fr);gap:34px;align-items:start
  }

  .sticky-panel{
    position:sticky;
    top:92px;
    border:1px solid rgba(255,255,255,.14);
    background:linear-gradient(160deg,rgba(18,38,74,.82),rgba(5,13,28,.95));
    border-radius:26px;
    padding:28px;
    box-shadow:var(--shadow-deep)
  }

  .sticky-panel .section-kicker{
    text-align:left;
    margin-bottom:12px
  }

  .sticky-panel h2{
    font-size:clamp(1.7rem,3vw,2.35rem);
    line-height:1.08;
    letter-spacing:-.04em;
    margin-bottom:16px
  }
  
  .sticky-panel p{
    color:#c4d3ea;
    margin-bottom:18px
  }
  
  .trust-list{
    display:grid;
    gap:10px;
    margin:22px 0
  }
    
  .trust-item{
    display:flex;
    gap:10px;
    align-items:center;
    color:#dce9fb;
    font-size:.91rem
  }
  
  .trust-item:before{
    content:"✓";
    width:22px;
    height:22px;
    border-radius:50%;
    display:grid;
    place-items:center;
    background:rgba(34,211,238,.12);
    color:var(--cyan-300);
    font-weight:900
  }

  .safe-strip{
    display:flex;
    gap:8px;
    flex-wrap:wrap
  }
  
  .safe-strip span{
    border:1px solid rgba(255,255,255,.11);
    background:rgba(255,255,255,.05);
    border-radius:999px;
    color:#aec2de;
    padding:7px 10px;
    font-size:.72rem;
    font-weight:750
  }

  .diagnostic-form{
    background:#fff;
    color:var(--ink-900);
    border-radius:26px;
    box-shadow:0 24px 72px rgba(0,0,0,.32);
    padding:28px;
    border:1px solid rgba(255,255,255,.14)
  }

  .honeypot{
    position:absolute;
    left:-9999px;
    width:1px;
    height:1px;
    opacity:0
  }
  
  .form-title{
    font-size:1.05rem;
    font-weight:900;
    margin-bottom:18px
  }
  
  .form-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:18px
  }
  
  .field{
    display:flex;
    flex-direction:column;
    gap:7px
  }
  
  .field.full{
    grid-column:1/-1
  }
  
  label{
    font-size:.78rem;
    font-weight:800;
    color:var(--ink-700);
    letter-spacing:.01em
  }
  
  .required{
    color:var(--blue-600)
  }
  
  input,select,textarea{
    width:100%;
    border:1px solid var(--border);
    background:#f8fafc;
    border-radius:13px;
    padding:12px 13px;
    color:var(--ink-900);
    outline:none;
    transition:border-color .15s,box-shadow .15s,background .15s
  }
    
  input:focus,select:focus,textarea:focus{
    border-color:var(--blue-500);
    box-shadow:0 0 0 4px rgba(59,130,246,.12);
    background:#fff
  }
  
  textarea{
    min-height:118px;
    resize:vertical
  }
  
  .question{
    grid-column:1/-1;
    border:1px solid var(--border);
    background:#fbfdff;
    border-radius:18px;
    padding:17px;
    display:grid;
    gap:11px
  }
  
  .question-head{
    display:flex;
    gap:10px;
    align-items:flex-start
  }
  
  .question-num{
    width:27px;
    height:27px;
    border-radius:9px;
    background:#eaf2ff;
    color:var(--blue-700);
    display:grid;
    place-items:center;
    font-size:.78rem;
    font-weight:900;
    flex:0 0 auto
  }
  
  .options{
    display:grid;
    gap:9px;
    grid-template-columns:repeat(2,1fr)
  }
  
  .option{
    position:relative
  }
  
  .option input{
    position:absolute;
    opacity:0;
    pointer-events:none
  }
  
  .option span{
    display:block;
    border:1px solid var(--border);
    background:#fff;
    border-radius:12px;
    padding:10px 11px;
    font-size:.82rem;
    color:var(--ink-600);
    font-weight:650;
    cursor:pointer;
    transition:.15s
  }
  
  .option input:checked+span{
    border-color:var(--blue-500);
    box-shadow:0 0 0 3px rgba(59,130,246,.12);
    color:var(--blue-700);
    background:#eff6ff
  }
  
  .check-row{
    display:flex;
    gap:10px;align-items:flex-start;
    margin:18px 0;
    color:var(--ink-600);
    font-size:.84rem
  }
  
  .check-row input{
    width:auto;
    margin-top:4px
  }

  .check-row a{
    color:var(--blue-700);
    text-decoration:underline;
    text-underline-offset:2px;
  }

  .submit-row{
    display:flex;
    align-items:center;
    gap:14px;
    flex-wrap:wrap
  }
  
  .submit-note{
    font-size:.82rem;
    color:var(--ink-500)
  }
  
  .success{
    display:none;
    margin-top:16px;
    border:1px solid #bbf7d0;
    background:#f0fdf4;
    color:#166534;
    border-radius:14px;
    padding:13px;
    font-size:.9rem;
    font-weight:700
  }

  /* ===== Footer ===== */
  footer{
    background:var(--navy-990);
    color:#93a6c4;
    padding:68px 0;
    font-size:.84rem
  }
  
  .footer-inner{
    max-width:1260px;
    margin:0 auto;
    padding:0 24px;
    display:grid;
    gap:24px
  }

  .footer-columns{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:56px;
    align-items:start;
    border-top:1px solid rgba(148,163,184,.22);
    padding-top:24px
  }
  
  .footer-links{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px 24px
  }

  .footer-nav,
  .footer-contact{
    display:grid;
    gap:14px
  }

  .footer-nav h2,
  .footer-contact h2{
    margin:0;
    color:#fff;
    font-size:.86rem;
    letter-spacing:.1em;
    text-transform:uppercase
  }

  .footer-direct{
    display:grid;
    gap:8px;
    font-weight:700;
    overflow-wrap:anywhere
  }

  .footer-social{
    display:flex;
    align-items:center;
    margin-top:12px
  }

  .footer-social-link{
    display:inline-grid;
    place-items:center;
    width:34px;
    height:34px;
    border-radius:6px;
    background:#0a66c2;
    color:#fff;
    font-weight:800;
    font-size:1.08rem;
    line-height:1;
    text-decoration:none
  }

  .footer-social-link:hover{
    background:#fff;
    color:#0a66c2;
    text-decoration:none
  }
  
  .footer-links a:hover, .footer-direct a:hover{
    color:#fff
  }

  .footer-brand{
    display:grid;
    place-items:center;
    align-self:stretch;
    min-height:100%
  }

  .footer-brand .logo-viewport{
    width:230px;
    max-width:70vw;
  }

  .footer-contact a:hover,
  .footer-address:hover{
    color:#fff;
    text-decoration:underline;
  }

  .footer-bottom{
    border-top:1px solid rgba(148,163,184,.22);
    padding-top:24px;
    text-align:center;
    color:#7f92b2
  }

  @media(max-width:900px){
    footer{
      padding:48px 0
    }

    .footer-columns{
      grid-template-columns:1fr;
      gap:30px
    }

    .footer-links{
      grid-template-columns:1fr
    }
  }

  /* ===== Imágenes dentro de las entradas del blog ===== */
  .blog-image {
    display: block;
    width: 100%;
    height: auto;
    margin: 34px auto;
    border-radius: 18px;
    object-fit: cover;
    box-shadow: 0 16px 40px rgba(2, 6, 23, 0.12);
  }

  /* Imagen destacada en formato horizontal 16:9 */
  .blog-image-featured {
    aspect-ratio: 16 / 9;
    object-fit: cover;
    margin: 48px auto 42px;
    border-radius: 24px;
  }







  @media(max-width:1060px){
    .hero-grid,.form-shell{
      grid-template-columns:1fr
    }
    .control-card{
      max-width:560px
    }
    .cards-4,.process{
      grid-template-columns:repeat(2,1fr)
    }
    .sticky-panel{
      position:relative;top:auto
    }
  }

  @media(max-width:760px){
    section{
      padding:66px 0;
    }

    .diagnostic-hero{
      padding:70px 0 62px;
    }

    .nav-inner{
      padding:10px 18px;
      gap:14px;
    }

    .brand-logo{
      width:min(68vw,210px);
      flex-basis:min(68vw,210px);
    }

    .menu-toggle{
      display:block;
    }

    .nav-links{
      position:absolute;
      top:calc(100% + 1px);
      left:18px;
      right:18px;
      display:none;
      align-items:stretch;
      gap:4px;
      margin:0;
      padding:12px;
      border:1px solid var(--border);
      border-radius:0 0 16px 16px;
      background:#fff;
      box-shadow:0 18px 40px rgba(2,6,23,.16);
    }

    .nav-links.is-open{
      display:flex;
      flex-direction:column;
    }

    .nav-links a{
      width:100%;
      padding:11px 12px;
      border-radius:10px;
    }

    .nav-links a:not(.nav-cta):hover{
      background:var(--bg-light);
    }

    .nav-cta{
      margin-top:4px;
    }

    .hero-grid{
      gap:38px;
    }

    .cards-3,.cards-4,.split,.process{
      grid-template-columns:1fr;
    }

    .form-grid,.options{
      grid-template-columns:1fr;
    }

    .diagnostic-form{
      padding:20px;
    }

    .pricing-table{
      min-width:720px;
    }

    .table-wrap{
      overflow-x:auto;
    }

    .container{
      padding:0 18px;
    }

    #ia,
    #seguridad,
    #metodo,
    #precios,
    #contacto-alcatech,
    #cta-diagnostico-home,
    #formulario{
      padding-top:82px;
      padding-bottom:82px;
    }
  }
  @media(prefers-reduced-motion:reduce){
    *{
      transition:none!important
    }
    html{
      scroll-behavior:auto
    }
  }

/* ===== Secciones específicas de la landing ===== */
.eyebrow{
  font-size:.74rem;
  font-weight:800;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--blue-400);
  margin-bottom:18px
}

.bg-light{
  background:var(--bg-light)
}

.card ul{
  margin:14px 0 0 18px;
  font-size:.88rem;
  color:var(--ink-600)
}

.card ul li{
  margin-bottom:6px
}

.card-link{
  margin-top:auto;
  padding-top:20px;
  color:var(--blue-600);
  font-weight:800;
  font-size:.9rem
}

.card-link:hover{
  text-decoration:underline
}

.lead{
  background:radial-gradient(800px 400px at 90% 0%, rgba(37,99,235,.25), transparent 55%),linear-gradient(150deg,var(--navy-900),var(--navy-950));
  color:#fff
}

.lead-grid{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:56px;
  align-items:center
}

.lead h2{
  font-size:clamp(1.7rem,3vw,2.3rem);
  font-weight:900;
  letter-spacing:-.025em;
  line-height:1.12;
  margin-bottom:20px
}

.lead p{
  color:#c3d0e4;
  font-size:.98rem;
  margin-bottom:28px;
  max-width:520px
}

.lead-list{
  display:flex;
  flex-direction:column;
  gap:12px
}

.lead-item{
  background:#fff;
  color:var(--ink-900);
  border-radius:999px;
  padding:14px 22px;
  font-size:.9rem;
  font-weight:700;
  box-shadow:0 8px 20px rgba(0,0,0,.25)
}

.final-cta{
  background:radial-gradient(700px 350px at 15% 0%, rgba(37,99,235,.3), transparent 60%),linear-gradient(150deg,var(--navy-800),var(--navy-950));
  color:#fff
}

.final-grid{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap
}

.final-cta .eyebrow{
  margin-bottom:12px
}

.final-cta h2{
  font-size:clamp(1.6rem,3vw,2.2rem);
  font-weight:900;
  letter-spacing:-.025em;
  margin-bottom:14px
}

.final-cta p{
  color:#c3d0e4;
  font-size:.95rem;
  max-width:620px
}

.final-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap
}

.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:56px;
  border-radius:28px;
  color:#fff;
  background:radial-gradient(600px 260px at 0 0,rgba(37,99,235,.42),transparent 65%),linear-gradient(145deg,var(--navy-800),var(--navy-990));
  box-shadow:var(--shadow-deep)
}

.contact-grid h2{
  font-size:clamp(2rem,4vw,3.35rem);
  font-weight:900;
  letter-spacing:-.025em;
  margin-bottom:14px
}

.contact-grid>div>p{
  color:#c3d0e4;
  font-size:1rem;
  max-width:460px
}

.contact-grid .card-tag{
  color:var(--cyan-300)
}

.contact-card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:22px;
  padding:34px;
  display:flex;
  flex-direction:column;
  gap:14px
}

.contact-card a{
  color:#fff;
  font-weight:800;
  font-size:1rem;
  overflow-wrap:anywhere
}

.contact-card .contact-location{
  color:#c3d0e4;
  font-weight:650;
}

.contact-card a:not(.btn):hover{
  text-decoration:underline
}

.contact-card span{
  color:var(--cyan-300);
  font-size:.92rem
}

.contact-card .btn{
  align-self:flex-start;
  margin-top:8px
}

.section-eyebrow{ 
  text-align:center;
  font-size:.74rem;
  font-weight:850;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--blue-500);
  margin-bottom:14px;
}

@media(max-width:760px){
  .lead-grid,.contact-grid{
    grid-template-columns:1fr;
    gap:36px
  }
  .contact-grid{
    padding:32px 24px
  }
}


/* ===== Blog ===== */
.nav-links a[aria-current="page"]{color:var(--blue-600)}
.blog-hero h1{max-width:900px}
.blog-listing-section{min-height:620px}
.blog-intro code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:#e2e8f0;padding:.14em .4em;border-radius:6px}
.blog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:48px}
.blog-card{display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow);transition:transform .35s,box-shadow .35s}
.blog-card:hover{transform:translateY(-6px);box-shadow:0 22px 50px rgba(2,6,23,.15)}
.blog-card-image{display:grid;place-items:center;aspect-ratio:16/9;background:linear-gradient(145deg,var(--navy-800),var(--navy-950));color:#a5f3fc;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;overflow:hidden}
.blog-card-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.blog-card:hover .blog-card-image img{transform:scale(1.035)}
.blog-card-content{display:flex;flex-direction:column;flex:1;padding:24px}
.blog-meta,.blog-post-meta,.blog-author{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--ink-500);font-size:.78rem;font-weight:700}
.blog-meta span,.blog-post-meta span{color:var(--blue-600);text-transform:uppercase;letter-spacing:.08em;font-weight:850}
.blog-card h2{font-size:1.2rem;line-height:1.25;letter-spacing:-.025em;margin:13px 0 10px}
.blog-card h2 a:hover{color:var(--blue-600)}
.blog-card p{color:var(--ink-600);font-size:.92rem}
.blog-empty{grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed #cbd5e1;border-radius:20px;background:#fff}
.blog-empty h3{margin-bottom:8px}
.blog-empty p{color:var(--ink-600)}
.blog-post{background:#fff}
.blog-post-header{padding:92px 0 56px;color:#fff;background:radial-gradient(800px 400px at 90% 0%,rgba(37,99,235,.32),transparent 58%),linear-gradient(155deg,var(--navy-900),var(--navy-990))}
.blog-post-narrow{max-width:900px}
.blog-back{display:inline-block;margin-bottom:32px;color:#bfdbfe;font-weight:750}
.blog-back:hover{color:#fff}
.blog-post-header h1{max-width:none;margin:18px 0 20px;font-size:clamp(2.3rem,5vw,4.25rem)}
.blog-post-lead{max-width:780px;color:#c7d6eb;font-size:1.15rem}
.blog-author{margin-top:24px;color:#a9bdd9}
.blog-featured-placeholder,.blog-inline-placeholder{display:grid;place-items:center;background:linear-gradient(145deg,#e2e8f0,#f8fafc);border:1px dashed #94a3b8;color:var(--ink-500);font-weight:750;text-align:center}
.blog-featured-placeholder{aspect-ratio:16/9;margin:56px 0 42px;border-radius:24px}
.blog-featured-image{display:block;aspect-ratio:4/3;margin:56px 0 42px;border-radius:24px;overflow:hidden;background:#e2e8f0}
.blog-featured-image img{display:block;width:100%;height:100%;object-fit:cover}
.blog-inline-placeholder{min-height:320px;margin:34px 0;border-radius:18px;padding:24px}
.blog-inline-placeholder figcaption{font-size:.8rem;font-weight:500;margin-top:12px}
.blog-post-content{font-size:1.05rem;color:var(--ink-700)}
.blog-post-content p{margin:0 0 22px}
.blog-post-content h2{font-size:clamp(1.65rem,3vw,2.25rem);line-height:1.15;letter-spacing:-.035em;margin:52px 0 18px;color:var(--ink-900)}
.blog-post-content h3{font-size:1.3rem;line-height:1.25;margin:34px 0 14px;color:var(--ink-900)}
.blog-post-content ul,.blog-post-content ol{margin:0 0 26px 26px}
.blog-post-content li{margin-bottom:10px;padding-left:5px}
.blog-post-content blockquote{margin:38px 0;padding:24px 28px;border-left:5px solid var(--blue-600);border-radius:0 16px 16px 0;background:#eff6ff;color:var(--ink-900);font-size:1.18rem;font-weight:750}
.blog-callout{margin:38px 0;padding:26px;border:1px solid #bae6fd;border-radius:18px;background:#ecfeff}
.blog-callout h3{margin:0 0 8px}
.blog-callout p{margin:0}
.blog-post-cta{display:flex;align-items:center;justify-content:space-between;gap:32px;margin:64px 0 88px;padding:34px;border-radius:24px;color:#fff;background:radial-gradient(500px 220px at 0 0,rgba(37,99,235,.45),transparent 66%),linear-gradient(145deg,var(--navy-800),var(--navy-990))}
.blog-post-cta h2{font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.15;margin-bottom:8px}
.blog-post-cta p:not(.eyebrow){color:#c3d0e4;max-width:580px}
.blog-post-cta .btn{flex:0 0 auto}
@media(max-width:960px){.blog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.blog-grid{grid-template-columns:1fr}.blog-post-header{padding:68px 0 46px}.blog-featured-placeholder,.blog-featured-image{margin:38px 0 30px;border-radius:18px}.blog-inline-placeholder{min-height:220px}.blog-post-cta{align-items:flex-start;flex-direction:column;margin-bottom:66px;padding:26px}}