:root{
  --navy:#0a1f3d;--navy2:#0f2d5e;--blue:#1a6fc4;--blue2:#2d8de8;
  --gold:#e8a020;--gold2:#f5c050;
  --green:#16a34a;--red:#dc2626;--purple:#7c3aed;
  --surface:rgba(255,255,255,.06);--border:rgba(255,255,255,.10);
  --text:#fff;--soft:rgba(255,255,255,.55);--muted:rgba(255,255,255,.35);
  --inp:rgba(255,255,255,.07);--inp-b:rgba(255,255,255,.18);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:'DM Sans',sans-serif;background:var(--navy);color:var(--text);min-height:100vh}

.bg{position:fixed;inset:0;z-index:0;
  background:
    radial-gradient(ellipse 70% 50% at 10% 0%,rgba(26,111,196,.22) 0%,transparent 55%),
    radial-gradient(ellipse 50% 40% at 90% 100%,rgba(232,160,32,.10) 0%,transparent 55%),
    linear-gradient(160deg,#0a1f3d 0%,#0d2550 45%,#09182f 100%)}
.bg::before{content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.015) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.015) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 80% 70% at center,black 20%,transparent 75%)}

/* NAV */
.nav{position:sticky;top:0;z-index:100;background:rgba(10,31,61,.92);
  border-bottom:1px solid rgba(232,160,32,.2);backdrop-filter:blur(16px)}
.nav-inner{max-width:900px;margin:0 auto;padding:0 20px;display:flex;align-items:stretch}
.nav-brand{color:#fff;font-family:'Syne',sans-serif;font-size:13px;font-weight:700;
  padding:14px 18px;border-right:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;gap:7px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;padding:0 12px;margin-left:auto}
.nav-link{color:rgba(255,255,255,.6);font-size:12px;font-weight:600;padding:6px 12px;
  border-radius:8px;border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);text-decoration:none;
  transition:all .2s;white-space:nowrap}
.nav-link:hover{background:rgba(255,255,255,.12);color:#fff}

/* HERO */
.hero{position:relative;z-index:1;max-width:900px;margin:0 auto;padding:24px 20px 12px}
.hero-label{font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--gold);margin-bottom:8px;display:flex;align-items:center;gap:7px}
.hero-label::before{content:'';width:18px;height:1.5px;background:var(--gold)}
.hero h1{font-family:'DM Serif Display',serif;font-size:26px;font-weight:400;margin-bottom:4px}
.hero h1 em{color:var(--gold);font-style:italic}
.hero p{font-size:12px;color:var(--soft)}

/* WRAP */
.wrap{position:relative;z-index:1;max-width:900px;margin:0 auto;padding:0 20px 60px}

/* TIPO SELECTOR */
.tipo-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}
.tipo-btn{background:rgba(255,255,255,.05);border:1.5px solid rgba(255,255,255,.12);
  border-radius:14px;padding:18px 16px;cursor:pointer;transition:all .2s;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  font-family:'DM Sans',sans-serif}
.tipo-btn:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.25)}
.tipo-btn.active{background:rgba(232,160,32,.12);border-color:rgba(232,160,32,.5)}
.tipo-icon{font-size:28px}
.tipo-name{font-size:13px;font-weight:700;color:#fff}
.tipo-sub{font-size:11px;color:var(--soft);text-align:center}
.tipo-badge{font-size:10px;font-weight:700;padding:2px 8px;border-radius:10px;margin-top:2px}
.badge-ou{background:rgba(26,111,196,.2);color:#93c5fd;border:1px solid rgba(26,111,196,.3)}
.badge-pm{background:rgba(220,38,38,.2);color:#fca5a5;border:1px solid rgba(220,38,38,.3)}

/* CARD */
.gcard{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
  border-radius:16px;overflow:hidden;margin-bottom:14px}
.gcard-head{padding:13px 18px;border-bottom:1px solid rgba(255,255,255,.07);
  display:flex;align-items:center;gap:8px}
.gcard-title{font-family:'Syne',sans-serif;font-size:12px;font-weight:600;
  color:var(--gold);display:flex;align-items:center;gap:7px}
.gcard-body{padding:18px}

/* FORM */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.g3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.fg{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}
.fg label{font-size:10px;font-weight:700;color:var(--soft);
  text-transform:uppercase;letter-spacing:.06em}
.fg input,.fg select{background:var(--inp);border:1.5px solid var(--inp-b);
  border-radius:10px;color:var(--text);padding:9px 13px;font-size:13px;
  font-family:'DM Sans',sans-serif;outline:none;transition:all .2s;width:100%}
.fg input:focus,.fg select:focus{border-color:rgba(45,141,232,.6);
  background:rgba(45,141,232,.08)}
.fg select option{background:#0f2d5e}
.fg .hint{font-size:10px;color:var(--muted);margin-top:2px}
.hl{border-color:rgba(232,160,32,.4)!important;background:rgba(232,160,32,.06)!important}

/* PREVIEW CARD */
.prev-card{background:linear-gradient(135deg,var(--navy2),#1a4a8a);
  border:1px solid rgba(45,141,232,.25);border-radius:14px;padding:18px;
  margin-bottom:14px;display:none}
.prev-card.show{display:block}
.prev-title{font-size:11px;font-weight:700;color:rgba(255,255,255,.5);
  text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px;
  display:flex;align-items:center;gap:6px}
.prev-row{display:flex;justify-content:space-between;padding:5px 0;
  border-bottom:1px solid rgba(255,255,255,.06);font-size:12px}
.prev-row:last-child{border-bottom:none}
.prev-lbl{color:var(--soft)}
.prev-val{font-weight:600;color:#fff;text-align:right}

/* STATUS */
.st{display:none;padding:10px 14px;border-radius:10px;font-size:12px;
  font-weight:500;margin-bottom:12px;align-items:center;gap:8px}
.st.ok{display:flex;background:rgba(22,163,74,.15);color:#86efac;
  border:1px solid rgba(22,163,74,.3)}
.st.err{display:flex;background:rgba(220,38,38,.15);color:#fca5a5;
  border:1px solid rgba(220,38,38,.3)}
.st.load{display:flex;background:rgba(45,141,232,.15);color:#93c5fd;
  border:1px solid rgba(45,141,232,.3)}
.spin{width:14px;height:14px;border:2px solid rgba(255,255,255,.2);
  border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}

/* BOTONES */
.btn-acc{width:100%;padding:12px;border:none;border-radius:11px;font-size:13px;
  font-weight:700;cursor:pointer;font-family:'DM Sans',sans-serif;
  margin-bottom:8px;display:flex;align-items:center;justify-content:center;
  gap:8px;transition:all .2s}
.btn-acc:last-child{margin-bottom:0}
.btn-acc:disabled{opacity:.5;cursor:not-allowed}
.btn-gold{background:linear-gradient(135deg,var(--gold),#d4891a);color:#0a1f3d}
.btn-gold:hover:not(:disabled){opacity:.9}
.btn-ghost{background:rgba(255,255,255,.06);color:rgba(255,255,255,.7);
  border:1px solid rgba(255,255,255,.12)}
.btn-ghost:hover:not(:disabled){background:rgba(255,255,255,.12)}

/* HISTORIAL */
.hist-item{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);
  border-radius:10px;padding:12px 14px;margin-bottom:8px;display:flex;
  align-items:center;justify-content:space-between;gap:12px}
.hist-info{flex:1}
.hist-name{font-size:13px;font-weight:600;color:#fff}
.hist-meta{font-size:11px;color:var(--soft);margin-top:2px}
.hist-tipo{font-size:10px;font-weight:700;padding:2px 8px;border-radius:8px}
.hist-ou{background:rgba(26,111,196,.2);color:#93c5fd}
.hist-pm{background:rgba(220,38,38,.2);color:#fca5a5}
.hist-btn{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.6);border-radius:8px;padding:5px 12px;font-size:11px;
  font-weight:600;cursor:pointer;transition:all .2s;font-family:'DM Sans',sans-serif}
.hist-btn:hover{background:rgba(255,255,255,.15);color:#fff}
.empty{text-align:center;padding:32px;color:var(--muted)}
.empty-icon{font-size:36px;margin-bottom:8px}

/* ════════ LOGIN ════════ */
.login-screen{position:fixed;inset:0;z-index:9999;
  background:linear-gradient(135deg,#0a1f3d 0%,#0d2748 100%);
  display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:100%;max-width:380px;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);border-radius:18px;padding:36px 30px;
  backdrop-filter:blur(12px);box-shadow:0 20px 60px rgba(0,0,0,.4)}
.login-head{text-align:center;margin-bottom:26px}
.login-icon{font-size:34px;margin-bottom:8px}
.login-title{font-family:'DM Serif Display',serif;font-size:24px;color:#fff;line-height:1.2}
.login-sub{font-size:13px;color:rgba(255,255,255,.55);margin-top:6px}
.login-label{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:6px}
.login-input{width:100%;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);border-radius:10px;color:#fff;
  padding:13px 15px;font-size:14px;font-family:'DM Sans',sans-serif;
  outline:none;box-sizing:border-box;margin-bottom:16px}
.login-input:focus{border-color:rgba(232,160,32,.5);background:rgba(255,255,255,.09)}
.login-input.pass{margin-bottom:20px}
.login-btn{width:100%;background:linear-gradient(135deg,#e8a020,#f0b840);
  color:#0a1f3d;border:none;border-radius:10px;padding:14px;font-size:15px;
  font-weight:700;font-family:'DM Sans',sans-serif;cursor:pointer;transition:transform .1s}
.login-btn:active{transform:scale(.98)}
.login-error{display:none;margin-top:16px;padding:10px 14px;
  background:rgba(220,38,38,.12);border:1px solid rgba(220,38,38,.3);
  border-radius:8px;font-size:13px;color:#f87171;text-align:center}

/* Botón Salir en nav (mismo look que .nav-link pero como <button>) */
.nav-link.btn-logout{cursor:pointer;font:inherit}

/* ════════ NAV TABS ════════ */
.nav-tabs{display:flex;align-items:stretch;gap:2px}
.nav-tab{background:none;border:none;color:rgba(255,255,255,.6);
  font-family:'DM Sans',sans-serif;font-size:12px;font-weight:600;
  padding:14px 16px;cursor:pointer;border-bottom:2px solid transparent;
  transition:all .2s;white-space:nowrap;display:flex;align-items:center;gap:6px}
.nav-tab:hover{color:#fff;background:rgba(255,255,255,.04)}
.nav-tab.active{color:var(--gold);border-bottom-color:var(--gold)}
.nav-badge{background:rgba(232,160,32,.2);color:var(--gold2);
  font-size:10px;font-weight:700;padding:1px 7px;border-radius:9px;min-width:18px;text-align:center}

/* ════════ GRID PRINCIPAL ════════ */
.grid-main{display:grid;grid-template-columns:1fr 360px;gap:18px;align-items:start}
@media(max-width:820px){.grid-main{grid-template-columns:1fr}}

/* Campos condicionales por tipo */
.campo-cond{display:none}
.campo-cond.show{display:block}

/* Input resaltado (cálculo) */
.hl-inp:focus{border-color:rgba(232,160,32,.5)!important;background:rgba(232,160,32,.07)!important}

/* Ocupación radios */
.ocu-grid{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.ocu-opt{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--soft);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:8px;padding:7px 12px;cursor:pointer;transition:all .2s}
.ocu-opt:hover{background:rgba(255,255,255,.09)}
.ocu-opt input{accent-color:var(--blue2)}

/* ════════ CALCULADORA STICKY ════════ */
.calc-sticky{position:sticky;top:70px;display:flex;flex-direction:column;gap:12px}
.calc-card{background:linear-gradient(135deg,var(--navy2),#1a4a8a);
  border:1px solid rgba(45,141,232,.25);border-radius:16px;padding:18px}
.calc-title{font-family:'Syne',sans-serif;font-size:13px;font-weight:600;
  color:var(--gold);margin-bottom:12px;display:flex;align-items:center;gap:7px}
.calc-row{display:flex;justify-content:space-between;align-items:center;
  padding:7px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:13px}
.calc-row:last-child{border-bottom:none}
.calc-lbl{color:rgba(255,255,255,.65)}
.calc-val{font-weight:700;color:#fff;text-align:right}
.calc-val.green{color:#86efac}
.calc-val.gold{color:var(--gold2);font-size:15px}

/* Tabla de amortización */
.amort-wrap{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);
  border-radius:14px;overflow:hidden}
.amort-head{font-family:'Syne',sans-serif;font-size:12px;font-weight:600;
  color:var(--gold);padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;gap:6px}
.amort-wrap table{width:100%;border-collapse:collapse;font-size:11px}
.amort-wrap th{color:var(--soft);font-weight:600;text-align:left;
  padding:8px 12px;border-bottom:1px solid rgba(255,255,255,.08);
  position:sticky;top:0;background:var(--navy)}
.amort-wrap td{padding:7px 12px;border-bottom:1px solid rgba(255,255,255,.05);color:rgba(255,255,255,.8)}
.amort-wrap tbody{display:block;max-height:260px;overflow-y:auto}
.amort-wrap thead,.amort-wrap tbody tr{display:table;width:100%;table-layout:fixed}

/* ════════ BOTONES DE ACCIÓN (colores) ════════ */
.btn-navy{background:linear-gradient(135deg,var(--blue),var(--navy2));color:#fff}
.btn-navy:hover:not(:disabled){opacity:.9}
.btn-green{background:linear-gradient(135deg,var(--green),#15803d);color:#fff}
.btn-green:hover:not(:disabled){opacity:.9}
.btn-purple{background:linear-gradient(135deg,var(--purple),#6d28d9);color:#fff}
.btn-purple:hover:not(:disabled){opacity:.9}

/* Utilidades de color de texto */
.green{color:#86efac}
.gold{color:var(--gold2)}

/* ════════ MODALES ════════ */
.modal-ov{position:fixed;inset:0;z-index:2000;background:rgba(5,15,30,.7);
  backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;padding:20px}
.modal-ov.open{display:flex}
.modal-box{width:100%;max-width:500px;background:#0d2748;
  border:1px solid rgba(255,255,255,.12);border-radius:16px;overflow:hidden;
  box-shadow:0 24px 70px rgba(0,0,0,.5)}
.modal-head{display:flex;align-items:center;gap:10px;padding:16px 20px;
  border-bottom:1px solid rgba(255,255,255,.08)}
.modal-head h3{font-family:'DM Serif Display',serif;font-size:18px;font-weight:400;color:#fff;flex:1}
.modal-close{background:rgba(255,255,255,.06);border:none;color:rgba(255,255,255,.6);
  width:30px;height:30px;border-radius:8px;cursor:pointer;font-size:14px;transition:all .2s}
.modal-close:hover{background:rgba(255,255,255,.14);color:#fff}
.modal-body{padding:20px}
.modal-foot{display:flex;gap:10px;justify-content:flex-end;padding:14px 20px;
  border-top:1px solid rgba(255,255,255,.08)}
.modal-foot button{padding:10px 18px;border:none;border-radius:9px;font-size:13px;
  font-weight:600;cursor:pointer;font-family:'DM Sans',sans-serif;transition:all .2s}
.modal-foot button:hover{opacity:.9}
.modal-body textarea{width:100%;background:var(--inp);border:1.5px solid var(--inp-b);
  border-radius:10px;color:var(--text);padding:9px 13px;font-size:13px;
  font-family:'DM Sans',sans-serif;outline:none;resize:vertical}
.modal-body textarea:focus{border-color:rgba(45,141,232,.6);background:rgba(45,141,232,.08)}

/* ════════ VISTA PREVIA (documento) ════════ */
.prev-ov{position:fixed;inset:0;z-index:2100;background:rgba(5,15,30,.8);
  backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;padding:20px}
.prev-ov.open{display:flex}
.prev-mod{width:100%;max-width:820px;max-height:90vh;background:#0d2748;
  border:1px solid rgba(255,255,255,.12);border-radius:16px;overflow:hidden;
  display:flex;flex-direction:column;box-shadow:0 24px 70px rgba(0,0,0,.5)}
.prev-hdr{display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.prev-hdr h3{font-family:'DM Serif Display',serif;font-size:18px;font-weight:400;color:#fff}
.prev-close2{background:rgba(255,255,255,.06);border:none;color:rgba(255,255,255,.6);
  width:30px;height:30px;border-radius:8px;cursor:pointer;font-size:14px;transition:all .2s}
.prev-close2:hover{background:rgba(255,255,255,.14);color:#fff}
.prev-body{padding:24px;overflow-y:auto;flex:1}
.prev-doc{background:#fff;color:#1a1a1a;border-radius:8px;padding:40px 48px;
  font-family:'Times New Roman',serif;font-size:13px;line-height:1.6;
  box-shadow:0 4px 20px rgba(0,0,0,.3)}
.prev-foot{display:flex;gap:10px;justify-content:flex-end;padding:14px 20px;
  border-top:1px solid rgba(255,255,255,.08)}
.btn-cancel{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.12);
  padding:10px 18px;border-radius:9px;font-size:13px;font-weight:600;
  cursor:pointer;font-family:'DM Sans',sans-serif;transition:all .2s}
.btn-cancel:hover{background:rgba(255,255,255,.14)}
.btn-print{background:linear-gradient(135deg,var(--gold),#d4891a);color:var(--navy);
  border:none;padding:10px 18px;border-radius:9px;font-size:13px;font-weight:700;
  cursor:pointer;font-family:'DM Sans',sans-serif;transition:all .2s}
.btn-print:hover{opacity:.9}

/* Impresión: solo el documento de vista previa */
@media print{
  body *{visibility:hidden}
  .prev-doc,.prev-doc *{visibility:visible}
  .prev-doc{position:absolute;left:0;top:0;width:100%;box-shadow:none;padding:0}
}