*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --gold:#C9A84C;--gold2:#E8C96A;--gold3:#7A6030;
  --black:#0A0A0A;--dark:#111;--dark2:#1A1A1A;
  --bg:#F5F4F0;--bg2:#EEECEA;--white:#fff;
  --text:#1A1A1A;--text2:#555;--text3:#888;
  --serif:'Cormorant Garamond',Georgia,serif;
  --sans:'DM Sans',sans-serif;
  --radius:12px;
}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}




.nav-logo-icon{
  width:38px;height:38px;
  background:linear-gradient(135deg,var(--gold3),var(--gold),var(--gold2));
  display:flex;align-items:center;justify-content:center;
  border-radius:6px;
}
.nav-logo-icon svg{width:22px;height:22px;fill:var(--black)}
.nav-logo-text{display:flex;flex-direction:column;line-height:1.1}
.nav-logo-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:-.01em}
.nav-logo-text span{font-size:9px;letter-spacing:.2em;color:rgba(255,255,255,.4);text-transform:uppercase}



.nav-links a:hover,
.nav-links a:hover::after,







/* ── HERO BANNER ── */
.hero{
  margin-top:68px;
  height:380px;
  position:relative;overflow:hidden;
  display:flex;align-items:flex-end;
}
.hero-bg{
  position:absolute;inset:0;
  background:url('assets/images/calc-image-01.png') center/cover no-repeat;
  filter:brightness(.5) saturate(.8);
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(10,10,10,.92) 35%,rgba(10,10,10,.2) 100%),
             linear-gradient(to top,rgba(10,10,10,.7) 0%,transparent 50%);
}
.hero-gold-top{
  position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(to right,var(--gold),var(--gold2) 50%,transparent);
}
.hero-content{
  position:relative;z-index:2;
  padding:0 24px 48px;
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  width:100%;
}
.hero-eyebrow{
  font-size:10px;letter-spacing:.35em;color:var(--gold);
  text-transform:uppercase;margin-bottom:12px;
  display:flex;align-items:center;justify-content:center;gap:10px;
  text-align:center;
}
.hero-eyebrow::before,.hero-eyebrow::after{
  content:'';display:inline-block;
  width:24px;height:1px;background:var(--gold);opacity:.5;
}
.hero-eyebrow::before{content:'';width:24px;height:1px;background:var(--gold)}
.hero-h1{
  font-family:var(--sans);
  font-size:clamp(36px,5vw,64px);font-weight:700;
  color:#fff;line-height:1.05;margin-bottom:12px;
  letter-spacing:-.02em;text-align:center;
}
.hero-h1 span{color:var(--gold);}
.hero-h1 span{color:var(--gold)}
.hero-desc{
  font-size:14px;font-weight:300;color:rgba(255,255,255,.55);
  line-height:1.7;max-width:560px;margin:0 auto 20px;
  text-align:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;
  background:rgba(201,168,76,.08);
  border:1px solid rgba(201,168,76,.2);
  border-radius:4px;
  font-size:11px;letter-spacing:.12em;
  color:rgba(255,255,255,.6);
  text-transform:uppercase;
  margin:0 auto;
}
.hero-badge svg{width:13px;height:13px;stroke:var(--gold);fill:none;stroke-width:1.5;flex-shrink:0;}
.hero-badge svg{width:13px;height:13px;stroke:var(--gold);fill:none;stroke-width:1.5;flex-shrink:0}

/* ── MAIN LAYOUT ── */
.calc-wrap{
  max-width:1160px;margin:0 auto;
  padding:48px 32px;
  display:grid;
  grid-template-columns:1fr 380px;
  gap:28px;align-items:start;
}

/* ── STEPS ── */
.steps{display:flex;flex-direction:column;gap:16px}

.step{
  background:var(--white);
  border:1px solid rgba(0,0,0,.07);
  border-radius:var(--radius);
  overflow:hidden;
  transition:box-shadow .25s,border-color .25s;
}
.step:hover{box-shadow:0 4px 24px rgba(0,0,0,.08);border-color:rgba(201,168,76,.25)}

.step-head{
  padding:20px 24px;
  display:flex;align-items:center;gap:14px;
}
.step-badge{
  width:32px;height:32px;border-radius:8px;
  background:var(--dark);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#fff;
  flex-shrink:0;font-family:var(--sans);letter-spacing:0;
}
.step-head-text h3{
  font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text);margin-bottom:2px;
}
.step-head-text p{font-size:12px;color:var(--text3);font-weight:300}
.step-icon{margin-left:auto;opacity:.35}
.step-icon svg{width:18px;height:18px;stroke:var(--gold);fill:none;stroke-width:1.5}

.step-body{padding:0 24px 24px}

/* Tipo grid */
.tipo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}





/* Slider */
.slider-val-display{text-align:center;margin:8px 0 16px}
.slider-val-display .val{
  font-size:52px;font-weight:700;color:var(--text);
  letter-spacing:-.03em;line-height:1;
}
.slider-val-display .unit{
  font-size:18px;font-weight:400;color:var(--gold);margin-left:4px;
}
.slider-marks{display:flex;justify-content:space-between;font-size:11px;color:var(--text3);margin-bottom:8px}
input[type=range]{
  width:100%;height:4px;
  background:linear-gradient(to right,var(--gold) 0%,var(--gold) calc(var(--pct,10%) ),#ddd calc(var(--pct,10%)));
  border-radius:2px;outline:none;-webkit-appearance:none;cursor:pointer;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:22px;height:22px;border-radius:50%;
  background:var(--white);border:2.5px solid var(--gold);
  box-shadow:0 2px 8px rgba(201,168,76,.3);transition:box-shadow .2s;
}
input[type=range]::-webkit-slider-thumb:hover{box-shadow:0 2px 16px rgba(201,168,76,.4)}

/* Opciones pisos/calidad */
.opciones-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.opc-btn{
  padding:14px 10px;
  background:var(--bg);border:1.5px solid transparent;border-radius:10px;
  font-family:var(--sans);font-size:12px;font-weight:600;
  text-align:center;cursor:pointer;color:var(--text2);
  transition:all .2s;line-height:1.4;
}
.opc-btn small{display:block;font-size:10px;font-weight:400;color:var(--text3);margin-top:3px}
.opc-btn:hover{background:#fff;border-color:rgba(201,168,76,.3);color:var(--text)}
.opc-btn.selected{background:#fff;border-color:var(--gold);color:var(--gold);box-shadow:0 2px 14px rgba(201,168,76,.12)}

/* Extras */
.extras-list{display:flex;flex-direction:column;gap:6px}
.extra-item{
  display:flex;align-items:center;gap:12px;
  padding:13px 16px;
  background:var(--bg);border:1.5px solid transparent;border-radius:10px;
  cursor:pointer;transition:all .2s;user-select:none;
}
.extra-item:hover{background:#fff;border-color:rgba(201,168,76,.2)}
.extra-item.checked{background:#fff;border-color:var(--gold);}
.extra-check{
  width:20px;height:20px;border-radius:5px;
  border:1.5px solid #ccc;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;transition:all .2s;
}
.extra-item.checked .extra-check{background:var(--gold);border-color:var(--gold)}
.extra-check svg{width:11px;height:11px;stroke:#000;fill:none;stroke-width:3;opacity:0;transition:opacity .2s}
.extra-item.checked .extra-check svg{opacity:1}
.extra-emoji{font-size:18px;flex-shrink:0}
.extra-name{flex:1;font-size:12px;font-weight:500;color:var(--text);letter-spacing:.03em;text-transform:uppercase}
.extra-cost{font-size:12px;font-weight:600;color:var(--gold);font-family:var(--sans)}

/* ── FEATURES STRIP ── */
.features-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:2px;margin-top:16px;
}
.feature-item{
  background:var(--white);
  padding:20px 18px;
  display:flex;align-items:center;gap:12px;
  border:1px solid rgba(0,0,0,.06);
  border-radius:0;
}
.feature-item:first-child{border-radius:var(--radius) 0 0 var(--radius)}
.feature-item:last-child{border-radius:0 var(--radius) var(--radius) 0}
.feat-icon-wrap{
  width:36px;height:36px;border-radius:50%;
  background:rgba(201,168,76,.1);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.feat-icon-wrap svg{width:17px;height:17px;stroke:var(--gold);fill:none;stroke-width:1.5}
.feat-text strong{font-size:11px;font-weight:700;color:var(--text);display:block;letter-spacing:.03em;text-transform:uppercase}
.feat-text span{font-size:10px;color:var(--text3);font-weight:300;line-height:1.4}

/* ── RESULTADO PANEL ── */
.result-panel{position:sticky;top:80px}
.result-card{
  background:var(--dark2);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:0 8px 40px rgba(0,0,0,.2);
}
.result-header{
  background:var(--dark);
  padding:16px 24px;
  display:flex;align-items:center;gap:10px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.result-header svg{width:16px;height:16px;stroke:var(--gold);fill:none;stroke-width:2}
.result-header span{
  font-size:11px;letter-spacing:.2em;color:rgba(255,255,255,.6);
  text-transform:uppercase;font-weight:600;
}
.result-body{padding:24px}
.result-total-label{
  font-size:10px;letter-spacing:.2em;color:rgba(255,255,255,.4);
  text-transform:uppercase;margin-bottom:6px;
}
.result-total{
  font-size:clamp(28px,3.5vw,40px);font-weight:700;
  color:#fff;letter-spacing:-.02em;line-height:1;margin-bottom:4px;
}
.result-currency{
  font-size:10px;letter-spacing:.2em;color:rgba(255,255,255,.3);
  text-transform:uppercase;margin-bottom:20px;padding-bottom:20px;
  border-bottom:1px solid rgba(255,255,255,.07);
}

/* Detalles resumidos */
.result-details{display:flex;flex-direction:column;gap:0;margin-bottom:20px}
.detail-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 0;
  border-bottom:1px solid rgba(255,255,255,.05);
  font-size:12px;
}
.detail-row:last-child{border-bottom:none}
.detail-row .d-icon{width:14px;height:14px;stroke:rgba(255,255,255,.3);fill:none;stroke-width:1.5;flex-shrink:0}
.detail-row .d-label{color:rgba(255,255,255,.45);display:flex;align-items:center;gap:6px}
.detail-row .d-val{color:#fff;font-weight:600;font-size:12px}

/* Desglose */
.breakdown-section{
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:16px;margin-bottom:16px;
}
.breakdown-title{
  font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.3);
  text-transform:uppercase;margin-bottom:10px;font-weight:600;
}
.bd-item{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.04);font-size:11px}
.bd-item:last-child{border-bottom:none}
.bd-item .bd-name{color:rgba(255,255,255,.45);font-weight:300}
.bd-item .bd-val{color:#fff;font-weight:500}

/* Costo m2 */
.cost-m2-box{
  background:rgba(201,168,76,.08);border:1px solid rgba(201,168,76,.2);
  border-radius:8px;padding:14px 16px;
  display:flex;justify-content:space-between;align-items:center;
  margin-bottom:14px;
}
.cost-m2-box .cm-label{font-size:10px;letter-spacing:.12em;color:rgba(255,255,255,.4);text-transform:uppercase}
.cost-m2-box .cm-val{font-size:16px;font-weight:700;color:var(--gold)}

/* Rango */
.rango-box{
  border:1px solid rgba(255,255,255,.07);border-radius:8px;
  display:grid;grid-template-columns:1fr 1fr;
  overflow:hidden;margin-bottom:20px;
}
.rango-item{padding:12px 14px;text-align:center}
.rango-item:first-child{border-right:1px solid rgba(255,255,255,.07)}
.rango-item .r-lbl{font-size:9px;letter-spacing:.18em;color:rgba(255,255,255,.3);text-transform:uppercase;margin-bottom:5px}
.rango-item .r-val{font-size:13px;font-weight:600}
.rango-item.low .r-val{color:#7CB9E8}
.rango-item.high .r-val{color:var(--gold)}

/* Nota */
.result-note-box{
  background:rgba(255,255,255,.03);border-radius:8px;
  padding:12px 14px;margin-bottom:20px;
  display:flex;gap:10px;
}
.result-note-box svg{width:16px;height:16px;stroke:var(--gold);fill:none;stroke-width:1.5;flex-shrink:0;margin-top:1px}
.result-note-box p{font-size:11px;color:rgba(255,255,255,.35);line-height:1.6;font-weight:300}

/* Botones */
.btn-cotizar{
  position:relative;
  display:flex;align-items:center;justify-content:center;gap:10px;
  width:100%;padding:15px;
  background:var(--gold);color:var(--black);
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;font-weight:700;
  border:none;cursor:pointer;border-radius:10px;
  margin-bottom:10px;overflow:hidden;
  transition:background .3s,transform .2s;
}
.btn-cotizar::after{
  content:'';position:absolute;top:-50%;left:-75%;width:50%;height:200%;
  background:linear-gradient(to right,rgba(255,255,255,0),rgba(255,255,255,.3),rgba(255,255,255,0));
  transform:skewX(-20deg);opacity:0;transition:none;
}
.btn-cotizar:hover::after{opacity:1;transform:skewX(-20deg) translateX(450%);transition:transform .6s ease,opacity .1s}
.btn-cotizar:hover{background:var(--gold2);transform:translateY(-1px)}
.btn-cotizar svg{width:14px;height:14px;stroke:var(--black);fill:none;stroke-width:2;position:relative;z-index:1}
.btn-wa{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;padding:13px;
  background:transparent;border:1.5px solid rgba(37,211,102,.3);
  border-radius:10px;color:#25D366;
  font-size:10px;letter-spacing:.15em;text-transform:uppercase;font-weight:600;
  text-decoration:none;transition:all .25s;position:relative;overflow:hidden;
}
.btn-wa::before{content:'';position:absolute;inset:0;background:rgba(37,211,102,.06);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.btn-wa:hover::before{transform:scaleX(1)}
.btn-wa svg{width:15px;height:15px;stroke:#25D366;fill:none;stroke-width:1.5;position:relative;z-index:1}

/* Responsive */
@media(max-width:960px){
  .calc-wrap{grid-template-columns:1fr;gap:24px}
  .result-panel{position:static}
  .features-strip{grid-template-columns:1fr 1fr}
}


  /* ── EXTRAS SMART ── */
  .extra-main { flex:1; display:flex; flex-direction:column; gap:1px; }
  .extra-name { font-size:12px; font-weight:500; color:var(--text); letter-spacing:.03em; text-transform:uppercase; }
  .extra-desde { font-size:10px; color:var(--text3); font-weight:300; }
  .extra-item.checked .extra-desde { color:var(--gold); }
  .extra-item.checked .extra-name { color:var(--text); }

  .sub-opts {
    display:grid; grid-template-columns:repeat(3,1fr);
    gap:4px; padding:6px 0 10px 44px;
    animation:fadeInSub .2s ease;
  }
  @keyframes fadeInSub { from{opacity:0;transform:translateY(-6px)} to{opacity:1;transform:none} }

  .sub-opt {
    padding:9px 8px; border-radius:8px;
    background:var(--bg2); border:1.5px solid transparent;
    font-size:10px; font-weight:600; color:var(--text2);
    cursor:pointer; text-align:center; transition:all .2s;
    display:flex; flex-direction:column; gap:3px; line-height:1.3;
  }
  .sub-opt span { font-size:9px; font-weight:400; color:var(--gold); }
  .sub-opt:hover { background:#fff; border-color:rgba(201,168,76,.3); color:var(--text); }
  .sub-opt.selected { background:#fff; border-color:var(--gold); color:var(--text); box-shadow:0 2px 10px rgba(201,168,76,.12); }

  /* ── MODAL COTIZACIÓN ── */
  .c-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0,0,0,.88);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    align-items: center;
    justify-content: center;
    padding: 20px;
  }
  .c-modal-overlay.active { display: flex; }

  .c-modal-box {
    background: #181818;
    border: 1px solid rgba(201,168,76,.2);
    border-top: 2px solid var(--gold);
    border-radius: 16px;
    padding: 36px 32px;
    max-width: 500px;
    width: 100%;
    position: relative;
    box-shadow: 0 32px 80px rgba(0,0,0,.6);
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn .25s cubic-bezier(.34,1.56,.64,1);
  }
  @keyframes modalIn {
    from { opacity:0; transform:translateY(16px) scale(.97); }
    to   { opacity:1; transform:none; }
  }

  .c-modal-close {
    position: absolute; top: 16px; right: 18px;
    background: none; border: none;
    color: rgba(255,255,255,.3);
    font-size: 18px; cursor: pointer;
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    transition: all .2s;
  }
  .c-modal-close:hover { background: rgba(255,255,255,.08); color: #fff; }

  .c-modal-eyebrow {
    font-size: 9px; letter-spacing: .3em;
    color: var(--gold); text-transform: uppercase;
    font-weight: 600; margin-bottom: 12px;
    display: flex; align-items: center; gap: 10px;
  }
  .c-modal-line {
    width: 20px; height: 1px;
    background: var(--gold); display: inline-block;
  }

  .c-modal-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(24px,4vw,32px);
    font-weight: 300; line-height: 1.1;
    color: #fff; margin-bottom: 8px;
  }
  .c-modal-title em {
    font-style: italic;
    color: rgba(255,255,255,.35);
  }
  .c-modal-sub {
    font-size: 12px; font-weight: 300;
    color: rgba(255,255,255,.4);
    line-height: 1.7; margin-bottom: 20px;
  }

  /* Resumen estimado */
  .c-modal-resumen {
    background: rgba(201,168,76,.07);
    border: 1px solid rgba(201,168,76,.18);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
  }
  .c-resumen-label {
    font-size: 9px; letter-spacing: .18em;
    color: rgba(255,255,255,.35); text-transform: uppercase;
    margin-bottom: 4px;
  }
  .c-resumen-total {
    font-size: 20px; font-weight: 700;
    color: var(--gold); letter-spacing: -.01em; line-height: 1;
  }
  .c-resumen-tags {
    font-size: 10px; color: rgba(255,255,255,.35);
    text-align: right; line-height: 1.8;
  }

  /* Form */
  .c-form-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 12px; margin-bottom: 12px;
  }
  .c-field { display: flex; flex-direction: column; gap: 6px; }
  .c-label {
    font-size: 9px; letter-spacing: .2em;
    color: var(--gold); text-transform: uppercase; font-weight: 600;
  }
  .c-req { color: var(--gold); }
  .c-input {
    width: 100%; padding: 11px 14px;
    background: rgba(255,255,255,.05);
    border: 1.5px solid rgba(255,255,255,.09);
    border-radius: 10px;
    color: #fff;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px; font-weight: 300;
    outline: none;
    transition: border-color .2s, background .2s, box-shadow .2s;
    -webkit-appearance: none;
  }
  .c-input::placeholder { color: rgba(255,255,255,.2); }
  .c-input:focus {
    border-color: rgba(201,168,76,.5);
    background: rgba(201,168,76,.04);
    box-shadow: 0 0 0 3px rgba(201,168,76,.1);
  }
  .c-textarea {
    resize: vertical;
    min-height: 90px;
    line-height: 1.6;
  }

  /* Botones */
  .c-btn-submit {
    position: relative;
    width: 100%; padding: 14px;
    background: #25D366; color: #fff;
    font-family: 'DM Sans', sans-serif;
    font-size: 11px; letter-spacing: .18em;
    text-transform: uppercase; font-weight: 700;
    border: none; border-radius: 10px; cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: 10px;
    margin-bottom: 10px; overflow: hidden;
    transition: background .3s, transform .2s;
  }
  .c-btn-submit svg { width:14px; height:14px; flex-shrink:0; }
  .c-btn-submit::after {
    content: ''; position: absolute;
    top: -50%; left: -75%; width: 50%; height: 200%;
    background: linear-gradient(to right,rgba(255,255,255,0),rgba(255,255,255,.3),rgba(255,255,255,0));
    transform: skewX(-20deg); opacity: 0; transition: none;
  }
  .c-btn-submit:hover::after { opacity:1; transform:skewX(-20deg) translateX(450%); transition:transform .6s ease,opacity .1s; }
  .c-btn-submit:hover { background: #1da851; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(37,211,102,.35); }

  .c-btn-wa {
    width: 100%; padding: 12px;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    background: rgba(37,211,102,.06);
    border: 1px solid rgba(37,211,102,.25);
    border-radius: 10px;
    color: #25D366;
    font-family: 'DM Sans', sans-serif;
    font-size: 10px; letter-spacing: .15em;
    text-transform: uppercase; font-weight: 600;
    text-decoration: none;
    transition: all .25s;
    position: relative; overflow: hidden;
  }
  .c-btn-wa::before {
    content: ''; position: absolute; inset: 0;
    background: rgba(37,211,102,.06);
    transform: scaleX(0); transform-origin: left;
    transition: transform .3s ease;
  }
  .c-btn-wa:hover::before { transform: scaleX(1); }
  .c-btn-wa svg { width:15px; height:15px; position:relative; z-index:1; flex-shrink:0; }
  .c-btn-wa span { position:relative; z-index:1; }

  .c-modal-note {
    text-align: center; margin-top: 12px;
    font-size: 10px; color: rgba(255,255,255,.2); line-height: 1.6;
  }

  /* Success */
  .c-success {
    text-align: center; padding: 16px 0;
  }
  .c-success-icon {
    width: 52px; height: 52px; border-radius: 50%;
    background: rgba(201,168,76,.1);
    border: 1.5px solid var(--gold);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 14px;
  }
  .c-success-icon svg { width:22px; height:22px; }
  .c-success-title { font-size:18px; font-weight:700; color:#fff; margin-bottom:8px; }
  .c-success-msg { font-size:12px; color:rgba(255,255,255,.4); font-weight:300; line-height:1.7; }

  /* Responsive modal */
  





  
  
  
  
  
  

  /* ══ NAVBAR ══ */
  #navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 9000;
    height: 68px;
    padding: 0 48px;
    background: rgba(10,10,10,.96);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    border-bottom: 1px solid rgba(201,168,76,.12);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background .45s ease, backdrop-filter .45s ease,
                border-color .45s ease, box-shadow .45s ease;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
  }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
    margin: 0; padding: 0;
  }
  .nav-links a {
    font-size: 10px;
    letter-spacing: .2em;
    color: rgba(255,255,255,.85);
    text-transform: uppercase;
    text-decoration: none;
    font-weight: 500;
    transition: color .2s;
    position: relative;
    padding-bottom: 2px;
  }
  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: var(--gold);
    transform: scaleX(0);
    transition: transform .3s;
  }
  .nav-links a:hover,
  .nav-links a.active { color: var(--gold); }
  .nav-links a:hover::after,
  .nav-links a.active::after { transform: scaleX(1); }
  .nav-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 22px;
    background: var(--gold);
    color: var(--black);
    font-family: var(--sans);
    font-size: 10px;
    letter-spacing: .18em;
    text-transform: uppercase;
    font-weight: 700;
    text-decoration: none;
    border-radius: 4px;
    flex-shrink: 0;
    transition: background .3s, transform .2s;
  }
  .nav-cta:hover { background: var(--gold2); transform: translateY(-1px); }
  .nav-cta svg { width: 12px; height: 12px; stroke: var(--black); fill: none; stroke-width: 2; }
  .nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
  }
  .nav-hamburger span {
    display: block;
    width: 22px; height: 1.5px;
    background: var(--white);
    transition: all .3s;
  }
  @media (max-width: 900px) {
    #navbar { padding: 0 24px; }
    .nav-links { display: none; }
    .nav-cta { display: none; }
    .nav-hamburger { display: flex; }
  }

  /* ════════════ RESPONSIVE CALCULADORA ════════════ */

  /* ── 768px Mobile ── */
  @media (max-width: 768px) {
    html, body { overflow-x: hidden; }

    /* Navbar */
    .nav-links { display: none !important; }
    .nav-links.open {
      display: flex !important;
      flex-direction: column;
      position: fixed;
      inset: 0;
      top: 68px;
      background: rgba(10,10,10,.97);
      backdrop-filter: blur(16px);
      padding: 40px 2rem;
      gap: 4px;
      z-index: 8999;
      align-items: flex-start;
    }
    .nav-links.open a { font-size: 20px; padding: 14px 0; width: 100%; }
    .nav-hamburger { display: flex !important; }
    .nav-cta { display: none !important; }

    /* Hero */
    .hero { height: 300px !important; }
    .hero-content { padding: 0 1.5rem 40px !important; text-align: center !important; }
    .hero-h1 { font-size: clamp(28px,8vw,42px) !important; }
    .hero-desc { font-size: 13px !important; max-width: 100% !important; }
    .hero-eyebrow { font-size: 9px !important; }

    /* Calc layout */
    .calc-wrap {
      grid-template-columns: 1fr !important;
      padding: 24px 16px !important;
      gap: 24px !important;
    }
    .result-panel { position: static !important; }

    /* Grids */
    .tipo-grid    { grid-template-columns: 1fr 1fr 1fr !important; gap: 6px !important; }
    .opciones-row { grid-template-columns: repeat(3,1fr) !important; gap: 4px !important; }
    .sub-opts     { grid-template-columns: 1fr 1fr 1fr !important; padding-left: 36px !important; }

    /* Result card */
    .result-card { border-radius: 8px; }
    .rango-box   { flex-direction: column; gap: 8px; }

    /* Modal */
    .c-modal-box  { padding: 24px 18px !important; border-radius: 10px; }
    .c-form-grid  { grid-template-columns: 1fr !important; }
    .c-modal-title { font-size: 22px !important; }
  }

  /* ── 480px Mobile pequeño ── */
  @media (max-width: 480px) {
    .tipo-grid    { grid-template-columns: 1fr !important; }
    .opciones-row { grid-template-columns: 1fr 1fr !important; }
    .sub-opts     { grid-template-columns: 1fr 1fr !important; padding-left: 0 !important; }
    .hero { height: 260px !important; }
    .calc-wrap { padding: 16px 12px !important; }
  }

  /* Navbar translucent scroll */
  #navbar { transition: background .4s, box-shadow .4s; }
  

  /* ── TIPO BUTTONS WITH IMAGES ── */
  .tipo-grid { gap: 10px; }
  .tipo-btn {
    position: relative;
    padding: 0;
    background: #1a1a1a;
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all .25s;
    overflow: hidden;
    text-align: center;
  }
  .tipo-btn-img {
    width: 100%;
    height: 110px;
    object-fit: cover;
    display: block;
    border-radius: 10px 10px 0 0;
    transition: transform .35s;
  }
  .tipo-btn:hover .tipo-btn-img { transform: scale(1.04); }
  .tipo-btn-label {
    display: block;
    padding: 8px 6px 5px;
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--text2);
    transition: color .2s;
    line-height: 1.3;
  }
  .tipo-btn-price {
    display: block;
    font-size: 9px;
    font-weight: 400;
    opacity: .55;
    padding-bottom: 8px;
    color: var(--text2);
  }
  .tipo-btn:hover {
    border-color: rgba(201,168,76,.4);
  }
  .tipo-btn:hover .tipo-btn-label { color: var(--gold); }

  /* Selected state — strong gold highlight */
  .tipo-btn.selected {
    border-color: var(--gold);
    box-shadow: 0 0 0 1px var(--gold), 0 4px 20px rgba(201,168,76,.25);
  }
  .tipo-btn.selected .tipo-btn-label {
    color: var(--gold);
    font-weight: 700;
  }
  .tipo-btn.selected .tipo-btn-price { opacity: .75; color: var(--gold); }
  .tipo-btn.selected::after {
    content: '✓';
    position: absolute;
    top: 7px; right: 9px;
    width: 20px; height: 20px;
    background: var(--gold);
    color: #000;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 20px;
  }

  /* Mobile */
  

  @media (max-width: 600px) {

  .tipo-grid{grid-template-columns:1fr}
  .opciones-row{grid-template-columns:1fr}
  .hero{height:280px}
  .hero-content{
  position:relative;z-index:2;
  padding:0 24px 48px;
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  width:100%;
}
  .hero-h1{
  font-family:var(--sans);
  font-size:clamp(36px,5vw,64px);font-weight:700;
  color:#fff;line-height:1.05;margin-bottom:12px;
  letter-spacing:-.02em;text-align:center;
}
.hero-h1 span{color:var(--gold);}
  .features-strip{grid-template-columns:1fr}
  .feature-item{border-radius:var(--radius) !important}
}

  
  .extra-main { flex:1; display:flex; flex-direction:column; gap:2px; }
  .extra-name { font-size:12px; font-weight:500; color:var(--text); letter-spacing:.03em; text-transform:uppercase; }
  .extra-desde { font-size:10px; color:var(--text3); font-weight:300; }
  .extra-item.checked .extra-desde { color:var(--gold); }
  .sub-opts {
    display:grid; grid-template-columns:repeat(3,1fr);
    gap:4px; padding:6px 0 10px 44px;
    animation:fadeInSub .2s ease;
  }
  @keyframes fadeInSub { from{opacity:0;transform:translateY(-4px)} to{opacity:1;transform:none} }
  .sub-opt {
    padding:9px 8px; border-radius:8px;
    background:var(--bg2); border:1.5px solid transparent;
    font-size:10px; font-weight:600; color:var(--text2);
    cursor:pointer; text-align:center; transition:all .2s;
    display:flex; flex-direction:column; gap:3px;
  }
  .sub-opt span { font-size:9px; font-weight:400; color:var(--gold); }
  .sub-opt:hover { background:#fff; border-color:rgba(201,168,76,.3); color:var(--text); }
  .sub-opt.selected { background:#fff; border-color:var(--gold); color:var(--text); box-shadow:0 2px 10px rgba(201,168,76,.12); 

    .c-modal-box { padding:28px 20px; border-radius:12px; }
    .c-form-grid { grid-template-columns:1fr; }
    .c-modal-title { font-size:24px; }
    .c-resumen-tags { display:none; }
  

    .tipo-btn-img { height: 80px; }
    .tipo-btn-label { font-size: 10px; padding: 6px 4px 3px; }
    .tipo-btn-price { font-size: 8px; padding-bottom: 6px; }
  
  }
  /* Navbar scroll — glass effect */
  #navbar.scrolled {
    background: rgba(10,10,10,.65);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    border-bottom: 1px solid rgba(201,168,76,.18);
    box-shadow: 0 4px 32px rgba(0,0,0,.25);
  }

  .nav-links a:hover { color: var(--gold) !important; }