:root{
  --bg:#0a0a0a;
  --bg-panel:#141414;
  --bg-card:#1c1c1c;
  --border:#2a2a2a;
  --text:#f2f2f2;
  --text-dim:#a0a0a0;
  --accent:#ff5c1a;
  --accent-dim:#c94812;
  --success:#3ecf7e;
  --radius:10px;
  --font:system-ui,-apple-system,"Segoe UI",sans-serif;
}

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

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  line-height:1.5;
}

a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none}
input,select,textarea{font-family:inherit}

/* ===== Nav ===== */
.nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 6vw;
  background:rgba(10,10,10,.85);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.nav .logo{font-weight:700;font-size:20px;letter-spacing:.5px}
.nav .logo span{color:var(--accent)}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14px;color:var(--text-dim);transition:color .15s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.btn-nav{
  color:var(--text);
  background:var(--accent);
  padding:8px 16px;
  border-radius:8px;
  font-weight:600;
}
.nav-links a.btn-nav:hover{background:var(--accent-dim)}
.nav-toggle{display:none}

@media (max-width:760px){
  .nav-links{
    position:fixed;top:60px;right:0;bottom:0;
    width:220px;background:var(--bg-panel);
    flex-direction:column;align-items:flex-start;
    padding:24px;gap:20px;border-left:1px solid var(--border);
    transform:translateX(100%);transition:transform .25s;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-toggle{display:block;background:none;color:var(--text);font-size:22px}
}

/* ===== Footer ===== */
.footer{
  border-top:1px solid var(--border);
  padding:40px 6vw;
  display:flex;flex-wrap:wrap;gap:24px;
  justify-content:space-between;
  color:var(--text-dim);font-size:14px;
}
.footer strong{color:var(--text);display:block;margin-bottom:6px}

/* ===== Layout helpers ===== */
.page{padding:64px 6vw;max-width:1200px;margin:0 auto}
.section-title{font-size:clamp(24px,3.5vw,36px);font-weight:700;margin-bottom:8px}
.section-sub{color:var(--text-dim);margin-bottom:32px;max-width:560px}

.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid-3,.grid-4{grid-template-columns:1fr}}

/* ===== Cards ===== */
.card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
}
.card h3{font-size:17px;margin-bottom:6px}
.card p{color:var(--text-dim);font-size:14px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:8px;font-weight:600;font-size:14px;
  transition:background .15s,transform .1s;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dim)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent)}
.btn-block{width:100%}
.btn-sm{padding:8px 14px;font-size:13px}

/* ===== Forms ===== */
.form-card{
  max-width:420px;margin:0 auto;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:32px;
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-dim);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 12px;
  background:var(--bg-panel);border:1px solid var(--border);
  border-radius:8px;color:var(--text);font-size:14px;
  outline:none;transition:border-color .15s;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}

/* ===== Toast (feedback mock) ===== */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--success);color:#06210f;font-weight:600;font-size:14px;
  padding:12px 22px;border-radius:8px;
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;
  z-index:100;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== Badge / price ===== */
.price{color:var(--accent);font-weight:700;font-size:18px}
.badge{
  display:inline-block;font-size:11px;font-weight:700;
  padding:3px 8px;border-radius:6px;background:var(--bg-panel);
  color:var(--text-dim);border:1px solid var(--border);
}

/* ===== Modal ===== */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  display:none;align-items:center;justify-content:center;z-index:80;
}
.modal-overlay.open{display:flex}
.modal{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px;width:min(420px,90vw);
}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.modal-close{background:none;color:var(--text-dim);font-size:20px}

/* ===== Table ===== */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--border);font-size:14px}
th{color:var(--text-dim);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.05em}

/* ===== Responsive / teléfono ===== */
.modal{max-height:90vh;overflow-y:auto}

@media (max-width:640px){
  .page{padding:48px 5vw}
  .form-card{padding:24px}

  /* Tablas que se convierten en tarjetas apiladas en el celular */
  .table-stack thead{display:none}
  .table-stack tr{display:block;border-bottom:1px solid var(--border);padding:6px 0}
  .table-stack tr:last-child{border-bottom:none}
  .table-stack td{
    display:flex;justify-content:space-between;align-items:center;gap:16px;
    border:none;padding:8px 14px;text-align:right;
  }
  .table-stack td::before{
    content:attr(data-label);color:var(--text-dim);
    font-size:11px;text-transform:uppercase;letter-spacing:.05em;
    font-weight:600;text-align:left;flex-shrink:0;
  }
  .table-stack td.row-actions{justify-content:flex-end;gap:8px;padding-top:4px}
  .table-stack td.row-actions::before{display:none}
  .table-stack td[colspan]{justify-content:center;text-align:center}
  .table-stack td[colspan]::before{display:none}
}