/*
 * VORVEX Engineering Tools -- calculadoras rapidas (calculadora.php)
 * Usa los tokens de assets/vorvex-home-tokens.css (--vx-*) con respaldo
 * literal por si el archivo de tokens no carga. Prefijo .vxc- para no
 * chocar con .card/.btn de assets/style.css.
 * Responsive 375-1280 px, objetivos tactiles >= 44 px, foco visible.
 */
.vxc-body{background:var(--vx-bg,#05060a);color:var(--vx-text,#f4f6fb);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;overflow-x:hidden}
.vxc-wrap{max-width:1080px;margin:0 auto;padding:44px 24px 90px;min-width:0}
.vxc-wrap *,.vxc-wrap *::before,.vxc-wrap *::after{box-sizing:border-box}

.vxc-crumbs{font-size:13px;color:var(--vx-muted,#93a0b8);margin-bottom:14px;display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px}
.vxc-crumbs a{color:var(--vx-muted,#93a0b8);display:inline-flex;align-items:center;min-height:44px;text-decoration:underline;text-underline-offset:3px;text-decoration-color:#93a0b866}
.vxc-crumbs a:hover{color:#fff}
.vxc-crumbs [aria-current]{color:#cfd7e4}
.vxc-eyebrow{color:var(--vx-blue-bright,#5b8dff);font-size:11px;font-weight:800;letter-spacing:2px}
.vxc-wrap h1{font-size:clamp(26px,4vw,36px);line-height:1.15;margin:6px 0 8px;overflow-wrap:anywhere}
.vxc-sub{color:var(--vx-muted,#93a0b8);font-size:15px;line-height:1.6;max-width:720px;margin:0 0 6px}
.vxc-note{color:#7dd3fc;font-size:13px;line-height:1.5;margin:0 0 26px}

.vxc-card{background:var(--vx-surface,#10131d);border:1px solid var(--vx-line,#1e2433);border-radius:var(--vx-radius,14px);padding:24px;margin-bottom:16px;min-width:0}
.vxc-card-title{font-size:16px;margin:0 0 16px}
.vxc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:4px 16px}
.vxc-field{margin-bottom:12px;min-width:0;display:flex;flex-direction:column}
.vxc-field label{display:block;font-size:13px;font-weight:600;color:#cfd7e4;margin-bottom:6px;line-height:1.35}
.vxc-field input,.vxc-field select{width:100%;min-height:44px;background:#070b11;border:1px solid #263548;color:#fff;padding:10px 12px;border-radius:8px;font-size:16px;font-family:inherit}
.vxc-field select{appearance:auto}
.vxc-field input:hover,.vxc-field select:hover{border-color:#36507a}
.vxc-field input:focus-visible,.vxc-field select:focus-visible{outline:2px solid var(--vx-blue-bright,#5b8dff);outline-offset:2px;border-color:var(--vx-blue-bright,#5b8dff)}
.vxc-field input:disabled{opacity:.45;cursor:not-allowed}
.vxc-field input:invalid:not(:focus):not(:placeholder-shown){border-color:#a8404d}
.vxc-hint{display:block;color:var(--vx-muted,#93a0b8);font-size:12px;margin-top:5px;line-height:1.4}

.vxc-buttons{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.vxc-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 22px;border-radius:9px;border:0;background:var(--vx-blue-bright,#5b8dff);color:#04070d;font-weight:800;font-size:14px;letter-spacing:.3px;cursor:pointer;text-decoration:none;font-family:inherit;text-align:center}
.vxc-btn:hover{background:#7aa3ff}
.vxc-btn-ghost{background:transparent;color:#fff;border:1px solid var(--vx-line,#1e2433)}
.vxc-btn-ghost:hover{background:transparent;border-color:var(--vx-blue-bright,#5b8dff)}
.vxc-btn:focus-visible,.vxc-wrap a:focus-visible,.vxc-wrap summary:focus-visible,.vxc-result:focus-visible{outline:2px solid #25a2ff;outline-offset:3px}
.vxc-result:focus{outline:none}

.vxc-result-title{font-size:18px;margin:0 0 14px}
.vxc-kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,170px),1fr));gap:10px;margin-bottom:16px}
.vxc-kpi{background:#0b0f18;border:1px solid var(--vx-line,#1e2433);border-radius:10px;padding:14px;min-width:0}
.vxc-kpi b{display:block;font-size:clamp(20px,3vw,24px);line-height:1.2;color:#fff;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.vxc-kpi span{display:block;font-size:12px;color:var(--vx-muted,#93a0b8);margin-top:4px;line-height:1.35}
.vxc-rec{border-left:3px solid var(--vx-blue-bright,#5b8dff);background:#0d1424;border-radius:0 10px 10px 0;padding:12px 16px;margin-bottom:12px}
.vxc-rec strong{display:block;font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--vx-blue-bright,#5b8dff);margin-bottom:4px}
.vxc-rec p{margin:0;font-size:14px;line-height:1.6;color:#e6ebf3}
.vxc-rec.is-ok{border-left-color:#4ade80}
.vxc-rec.is-ok strong{color:#4ade80}
.vxc-rec.is-bad{border-left-color:#ff9ea8;background:#1f1116}
.vxc-rec.is-bad strong{color:#ff9ea8}
.vxc-warn{background:#241c12;border:1px solid #4a3410;color:#facc15;border-radius:10px;padding:10px 14px;margin:8px 0;font-size:13px;line-height:1.55}
.vxc-tag{font-weight:800;font-size:11px;letter-spacing:.6px;text-transform:uppercase}
.vxc-error{background:#30151a;border:1px solid #5a2430;color:#ff9ea8;border-radius:10px;padding:12px 14px;font-size:14px}

.vxc-eng{margin-top:14px;border:1px solid var(--vx-line,#1e2433);border-radius:10px;background:#0a0e16}
.vxc-eng summary{cursor:pointer;min-height:44px;display:flex;align-items:center;padding:10px 16px;font-size:13px;font-weight:800;color:var(--vx-blue-bright,#5b8dff);letter-spacing:.3px}
.vxc-eng[open] summary{border-bottom:1px solid var(--vx-line,#1e2433)}
.vxc-eng h3{font-size:13px;color:#cfd7e4;margin:14px 16px 6px}
.vxc-formulas{margin:0 16px 8px;padding:12px 14px 12px 30px;background:#070b11;border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.8;color:#b7c2d6;overflow-wrap:anywhere}
.vxc-assume{margin:0 16px 16px;padding-left:20px;font-size:13px;line-height:1.6;color:#7dd3fc}
.vxc-assume li{margin-bottom:4px}

.vxc-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.vxc-actions p{flex:1 1 100%;margin:0 0 4px;color:var(--vx-muted,#93a0b8);font-size:14px;line-height:1.55}

.vxc-h2{font-size:16px;color:var(--vx-muted,#93a0b8);margin:34px 0 10px}
.vxc-faq{max-width:760px}
.vxc-faq details{background:var(--vx-surface,#10131d);border:1px solid var(--vx-line,#1e2433);border-radius:10px;padding:0 16px;margin-bottom:8px}
.vxc-faq summary{cursor:pointer;min-height:44px;display:flex;align-items:center;font-size:14px;font-weight:700;color:#fff;padding:10px 0}
.vxc-faq p{font-size:13px;color:var(--vx-muted,#93a0b8);margin:0 0 14px;line-height:1.6}
.vxc-others{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,220px),1fr));gap:8px}
.vxc-others a{display:flex;align-items:center;min-height:44px;padding:8px 14px;background:#0b0f18;border:1px solid var(--vx-line,#1e2433);border-radius:10px;color:#cfd7e4;font-size:13px;font-weight:600;text-decoration:none}
.vxc-others a:hover{border-color:var(--vx-blue-bright,#5b8dff);color:#fff}

[hidden]{display:none!important}

@media (max-width:600px){
  .vxc-wrap{padding:28px 16px 70px}
  .vxc-card{padding:18px 16px}
  .vxc-buttons .vxc-btn,.vxc-actions .vxc-btn{flex:1 1 100%}
  .vxc-formulas{margin:0 10px 8px;padding-left:24px}
  .vxc-assume{margin:0 10px 14px}
  .vxc-eng h3{margin-left:10px;margin-right:10px}
}
@media (prefers-reduced-motion:reduce){
  .vxc-wrap *{transition:none!important;animation:none!important}
}
@media print{
  .vxc-body{background:#fff!important;color:#111!important}
  .vxh-header,.vxh-footer,.vxc-crumbs,.vxc-buttons,.vxc-actions,.vxc-others,.vxc-faq{display:none!important}
  .vxc-card,.vxc-kpi,.vxc-warn,.vxc-rec,.vxc-eng{background:#fff!important;color:#111!important;border:1px solid #ccc!important}
  .vxc-kpi b,.vxc-rec p,.vxc-formulas,.vxc-assume{color:#111!important}
  .vxc-eng>*{display:block!important}
}