/* =====================================================
   NITPOS — shared.css  (Design System v4)
   Importado por todas las páginas
   ===================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root{
  --c-navy:#0B1D3A;--c-blue:#1A56DB;--c-blue-h:#1648C0;--c-blue-lt:#EEF4FF;
  --c-green:#059669;--c-green-lt:#ECFDF5;--c-amber:#D97706;
  --c-purple:#7C3AED;--c-red:#DC2626;--c-cyan:#0891B2;
  --c-white:#FFF;--c-gray-50:#F8FAFC;--c-gray-100:#F1F5F9;
  --c-gray-200:#E2E8F0;--c-gray-300:#CBD5E1;--c-gray-400:#94A3B8;
  --c-gray-600:#475569;--c-gray-700:#334155;--c-gray-900:#0F172A;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-full:9999px;
  --sh-sm:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.05);
  --sh-md:0 4px 16px rgba(0,0,0,.08),0 2px 6px rgba(0,0,0,.05);
  --sh-lg:0 12px 40px rgba(0,0,0,.10),0 4px 12px rgba(0,0,0,.06);
  --sh-xl:0 24px 64px rgba(0,0,0,.12),0 8px 24px rgba(0,0,0,.07);
  --f:'Inter',system-ui,sans-serif;--header-h:68px;--max-w:1200px;
  --t:.22s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-font-smoothing:antialiased}
body{font-family:var(--f);color:var(--c-gray-900);background:var(--c-white);line-height:1.6;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}
input,textarea,select{font-family:inherit;outline:none}

/* ---- Layout ---- */
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px}
.grad{background:linear-gradient(135deg,var(--c-blue),var(--c-green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--c-blue);background:var(--c-blue-lt);padding:4px 14px;border-radius:var(--r-full);margin-bottom:14px}
.sec-head{text-align:center;max-width:620px;margin:0 auto 56px}
.sec-head h2{font-size:clamp(1.75rem,3vw,2.4rem);font-weight:800;line-height:1.2;color:var(--c-gray-900);margin-bottom:12px}
.sec-head p{font-size:1.05rem;color:var(--c-gray-600);line-height:1.75}

/* ---- Buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-md);font-size:.92rem;font-weight:600;transition:all var(--t);white-space:nowrap;cursor:pointer;border:2px solid transparent}
.btn-primary{background:var(--c-blue);color:#fff;box-shadow:0 4px 14px rgba(26,86,219,.35)}
.btn-primary:hover{background:var(--c-blue-h);transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,86,219,.42)}
.btn-outline{border-color:var(--c-gray-300);color:var(--c-gray-700);background:transparent}
.btn-outline:hover{border-color:var(--c-blue);color:var(--c-blue);background:var(--c-blue-lt)}
.btn-ghost{color:var(--c-gray-600);background:transparent}
.btn-ghost:hover{color:var(--c-blue);background:var(--c-blue-lt)}
.btn-success{background:var(--c-green);color:#fff;box-shadow:0 4px 14px rgba(5,150,105,.3)}
.btn-success:hover{background:#047857;transform:translateY(-2px)}
.btn-danger{background:var(--c-red);color:#fff}
.btn-danger:hover{background:#B91C1C;transform:translateY(-2px)}
.btn-lg{padding:14px 32px;font-size:1rem;border-radius:var(--r-lg)}
.btn-sm{padding:7px 16px;font-size:.82rem}
.btn-full{width:100%}

/* =============================================
   SHARED HEADER
   ============================================= */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-h);background:rgba(255,255,255,.92);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--c-gray-100);transition:box-shadow var(--t)}
.header.scrolled{box-shadow:var(--sh-md)}
.header .container{display:flex;align-items:center;height:100%;gap:20px}

.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.logo-fallback{display:flex;align-items:center;gap:10px}
.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--c-blue),var(--c-green));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem;font-weight:900;box-shadow:0 4px 12px rgba(26,86,219,.3);flex-shrink:0}
.logo-text{font-weight:800;font-size:1.2rem;letter-spacing:-.02em;color:var(--c-gray-900)}
.logo-text .accent{background:linear-gradient(135deg,var(--c-blue),var(--c-green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

.nav{flex:1;display:flex;align-items:center}
.nav ul{display:flex;align-items:center;gap:2px}
.nav a{padding:8px 14px;border-radius:var(--r-sm);font-size:.9rem;font-weight:500;color:var(--c-gray-600);transition:all var(--t)}
.nav a:hover,.nav a.active{color:var(--c-blue);background:var(--c-blue-lt)}
.header-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}

.ham{display:none;flex-direction:column;justify-content:center;align-items:center;width:40px;height:40px;gap:5px;border-radius:var(--r-sm);transition:background var(--t)}
.ham:hover{background:var(--c-gray-100)}
.ham span{display:block;width:22px;height:2px;background:var(--c-gray-700);border-radius:2px;transition:all var(--t)}
.ham.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.ham.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.ham.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* =============================================
   SHARED FOOTER
   ============================================= */
.footer{background:var(--c-navy);padding:72px 0 0}
.footer-top{display:grid;grid-template-columns:280px 1fr;gap:72px;padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.footer-logo-fallback{display:flex;align-items:center;gap:10px}
.footer-logo-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--c-blue),var(--c-green));border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.9rem;font-weight:900;flex-shrink:0}
.footer-logo-text{font-weight:800;font-size:1.1rem;color:#fff;letter-spacing:-.01em}
.footer-logo-text span{background:linear-gradient(135deg,#93C5FD,#6EE7B7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.footer-brand>p{font-size:.85rem;color:rgba(255,255,255,.45);line-height:1.75;margin-top:14px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{width:34px;height:34px;background:rgba(255,255,255,.07);border-radius:8px;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);font-size:.85rem;transition:all var(--t)}
.footer-social a:hover{background:var(--c-blue);color:#fff;transform:translateY(-2px)}
.footer-social a.wa:hover{background:#25D366}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.footer-col h5{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.8);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col a{font-size:.85rem;color:rgba(255,255,255,.45);transition:color var(--t);display:inline-block}
.footer-col a:hover{color:#fff}
.footer-bottom{padding:18px 0;display:flex;justify-content:space-between;align-items:center;font-size:.78rem;color:rgba(255,255,255,.25);flex-wrap:wrap;gap:8px}

/* =============================================
   LEGAL LAYOUT
   ============================================= */
.page-wrap{padding:calc(var(--header-h) + 56px) 0 80px;background:var(--c-gray-50);min-height:100vh}
.page-hero{background:linear-gradient(135deg,var(--c-navy) 0%,#1A3A6B 100%);padding:64px 0 56px;text-align:center;margin-bottom:48px}
.page-hero .chip{background:rgba(26,86,219,.3);color:#93C5FD;margin-bottom:16px}
.page-hero h1{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:900;color:#fff;line-height:1.2;margin-bottom:12px}
.page-hero p{font-size:1rem;color:rgba(255,255,255,.7);max-width:560px;margin:0 auto}

.legal-container{max-width:860px;margin:0 auto;padding:0 24px}
.legal-card{background:#fff;border:1px solid var(--c-gray-200);border-radius:var(--r-xl);padding:52px;box-shadow:var(--sh-md);margin-bottom:24px}
.legal-meta{font-size:.82rem;color:var(--c-gray-400);margin-bottom:36px;padding-bottom:24px;border-bottom:1px solid var(--c-gray-200);display:flex;gap:20px;flex-wrap:wrap}
.legal-meta span{display:flex;align-items:center;gap:6px}
.legal-meta i{color:var(--c-blue)}

.legal-card h2{font-size:1.15rem;font-weight:700;color:var(--c-gray-900);margin:36px 0 12px;padding-top:8px;display:flex;align-items:center;gap:10px}
.legal-card h2 i{color:var(--c-blue);font-size:1rem}
.legal-card h2:first-of-type{margin-top:0}
.legal-card h3{font-size:1rem;font-weight:700;color:var(--c-gray-700);margin:24px 0 10px}
.legal-card p{font-size:.95rem;color:var(--c-gray-600);line-height:1.8;margin-bottom:14px}
.legal-card ul{margin:10px 0 16px 0}
.legal-card ul li{font-size:.93rem;color:var(--c-gray-600);line-height:1.75;margin-bottom:8px;padding-left:20px;position:relative}
.legal-card ul li::before{content:'·';position:absolute;left:6px;color:var(--c-blue);font-weight:700}
.legal-card a{color:var(--c-blue);text-decoration:underline;text-underline-offset:2px}
.legal-card strong{color:var(--c-gray-900)}
.legal-divider{border:none;border-top:1px solid var(--c-gray-200);margin:32px 0}

.legal-highlight{background:var(--c-blue-lt);border-left:4px solid var(--c-blue);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:16px 20px;margin:20px 0}
.legal-highlight p{margin:0;color:var(--c-gray-700);font-size:.92rem}
.legal-success{background:var(--c-green-lt);border-left:4px solid var(--c-green);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:16px 20px;margin:20px 0}
.legal-success p{margin:0;color:#065F46;font-size:.92rem}

.legal-toc{background:var(--c-gray-50);border:1px solid var(--c-gray-200);border-radius:var(--r-lg);padding:24px 28px;margin-bottom:32px}
.legal-toc h4{font-size:.85rem;font-weight:700;color:var(--c-gray-700);margin-bottom:14px;text-transform:uppercase;letter-spacing:.06em}
.legal-toc ol{padding-left:20px}
.legal-toc li{font-size:.88rem;color:var(--c-blue);line-height:1.8;list-style:decimal}
.legal-toc a{color:var(--c-blue);font-weight:500}
.legal-toc a:hover{text-decoration:underline}

.back-link{display:inline-flex;align-items:center;gap:8px;font-size:.88rem;font-weight:500;color:var(--c-gray-600);margin-bottom:28px;transition:color var(--t)}
.back-link:hover{color:var(--c-blue)}

/* =============================================
   BACK TO TOP
   ============================================= */
.btt{position:fixed;bottom:28px;right:28px;width:42px;height:42px;background:var(--c-blue);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(26,86,219,.4);opacity:0;pointer-events:none;transition:all var(--t);z-index:500;font-size:.9rem;cursor:pointer;border:none}
.btt.show{opacity:1;pointer-events:all}
.btt:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(26,86,219,.5)}

/* =============================================
   RESPONSIVE SHARED
   ============================================= */
@media(max-width:768px){
  .nav,.header-cta{display:none}
  .ham{display:flex}
  .nav.open{display:flex;flex-direction:column;position:fixed;top:var(--header-h);left:0;right:0;background:rgba(255,255,255,.97);backdrop-filter:blur(16px);padding:16px 24px 28px;border-bottom:1px solid var(--c-gray-200);box-shadow:var(--sh-lg);z-index:999}
  .nav.open ul{flex-direction:column;gap:2px;margin-bottom:16px}
  .nav.open a{padding:12px 16px;font-size:1rem;display:block}
  .header-cta.open{display:flex;flex-direction:column;gap:10px;padding:0 24px 24px}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-cols{grid-template-columns:repeat(2,1fr)}
  .footer-bottom{flex-direction:column;text-align:center}
  .legal-card{padding:28px 20px}
}

@media(max-width:480px){
  .footer-cols{grid-template-columns:1fr}
}