:root{
  --bg-0:#071427; --panel:#0f2647; --panel-2:#132c52; --line:#1c3352;
  --cyan:#2fc4ea; --cyan-soft:#7fdcf3; --green:#33d17a; --amber:#e8b93a; --red:#e5484d;
  --ink:#e8f1fb; --ink-dim:#8fa8c4;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg-0);color:var(--ink);font-family:'Inter',system-ui,sans-serif;font-size:14px;}
h1,h2,h3,h4{font-family:'Space Grotesk',system-ui,sans-serif;margin:0 0 6px;}
a{color:var(--cyan-soft);transition:color .15s;}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:16px 28px;border-bottom:1px solid var(--line);background:var(--panel);}
.topbar .brand{font-family:'Space Grotesk';font-weight:700;font-size:17px;}
.topbar .brand span{color:var(--cyan-soft);}
.container{max-width:1100px;margin:0 auto;padding:28px;}
.auth-container{max-width:420px;margin:60px auto;padding:0 20px;}
.card{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:14px;padding:22px 24px;margin-bottom:18px;box-shadow:0 4px 18px rgba(0,0,0,.18);transition:border-color .2s;}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;}
.field label{font-size:12.5px;color:var(--ink-dim);}
input,select,textarea{background:var(--bg-0);border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:9px 11px;font-size:13.5px;font-family:inherit;}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--cyan);}
/* el navegador arma el listado desplegado de <option> con sus propios colores del sistema —
   sin esto, en Windows/Chrome sale texto negro sobre el celeste de selección y no se lee */
select option{background:var(--panel-2);color:var(--ink);}
select option:checked,select option:hover{background:var(--cyan);color:#fff;}
.btn{display:inline-block;background:var(--cyan);color:#04101f;border:none;border-radius:8px;padding:10px 18px;font-weight:700;font-size:13.5px;cursor:pointer;text-decoration:none;transition:background .15s,transform .15s,box-shadow .15s;}
.btn:hover{background:var(--cyan-soft);transform:translateY(-1px);box-shadow:0 6px 16px -6px rgba(47,196,234,.5);}
.btn:active{transform:translateY(0);box-shadow:none;}
.btn.outline{background:transparent;border:1px solid var(--line);color:var(--ink);box-shadow:none;}
.btn.outline:hover{border-color:var(--cyan);color:var(--cyan-soft);background:rgba(47,196,234,.06);}
.btn.danger{background:var(--red);color:#fff;}
.btn.danger:hover{background:#ff6166;box-shadow:0 6px 16px -6px rgba(229,72,77,.6);}
.btn.sm{padding:6px 12px;font-size:12px;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
@keyframes flashIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:13px;display:flex;align-items:center;gap:8px;animation:flashIn .25s ease;}
.flash.success{background:rgba(51,209,122,.12);border:1px solid rgba(51,209,122,.3);color:var(--green);}
.flash.success::before{content:'✓';font-weight:700;}
.flash.error{background:rgba(229,72,77,.12);border:1px solid rgba(229,72,77,.3);color:#ff9a9d;}
.flash.error::before{content:'⚠';}
.flash.info{background:rgba(47,196,234,.1);border:1px solid rgba(47,196,234,.3);color:var(--cyan-soft);}
.flash.info::before{content:'ℹ';}
table{width:100%;border-collapse:collapse;}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:13px;}
th{color:var(--ink-dim);font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.04em;}
tbody tr{transition:background .12s;}
tbody tr:hover{background:rgba(47,196,234,.07);}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700;letter-spacing:.02em;}
.badge.ok{background:rgba(51,209,122,.14);color:var(--green);box-shadow:0 0 0 1px rgba(51,209,122,.25) inset;}
.badge.warn{background:rgba(232,185,58,.14);color:var(--amber);box-shadow:0 0 0 1px rgba(232,185,58,.25) inset;}
.badge.off{background:rgba(255,255,255,.06);color:var(--ink-dim);box-shadow:0 0 0 1px rgba(255,255,255,.08) inset;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.sub{color:var(--ink-dim);font-size:12px;}
.qr-box{background:#fff;padding:16px;border-radius:10px;display:inline-block;}
.section-title{font-size:11.5px;color:var(--cyan-soft);text-transform:uppercase;letter-spacing:.06em;margin:24px 0 10px;font-weight:700;display:flex;align-items:center;gap:6px;}
.section-title::before{content:'';width:3px;height:13px;background:var(--cyan);border-radius:2px;display:inline-block;}

/* ---- shell del portal de administración: sidebar fija + contenido, mismo lenguaje visual que la plataforma ---- */
.admin-shell{display:flex;min-height:100vh;}
.admin-sidebar{width:230px;flex-shrink:0;background:var(--panel);border-right:1px solid var(--line);padding:20px 0;display:flex;flex-direction:column;}
.admin-sidebar .brand{font-family:'Space Grotesk';font-weight:700;font-size:16px;padding:0 20px 18px;border-bottom:1px solid var(--line);margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.admin-sidebar .brand span{color:var(--cyan-soft);}
.admin-sidebar .tag{display:block;font-size:10px;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.08em;margin:0 20px 14px;}
.admin-nav a{display:flex;align-items:center;gap:10px;padding:10px 20px;color:var(--ink-dim);text-decoration:none;font-size:13px;font-weight:600;border-left:3px solid transparent;transition:background .15s,color .15s,border-color .15s;}
.admin-nav a:hover{color:var(--ink);background:rgba(47,196,234,.06);}
.admin-nav a.active{color:var(--cyan-soft);border-left-color:var(--cyan);background:rgba(47,196,234,.08);box-shadow:inset -1px 0 0 rgba(47,196,234,.15);}
.admin-sidebar-foot{margin-top:auto;padding:14px 20px 0;font-size:10.5px;color:var(--ink-dim);border-top:1px solid var(--line);padding-top:14px;}
.admin-sidebar-foot a{transition:color .15s;}
.admin-sidebar-foot a:hover{color:var(--cyan-soft);}
.admin-main{flex:1;min-width:0;}
.admin-main .topbar{padding:16px 32px;}
.admin-main .container{max-width:1200px;padding:28px 32px;}
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:22px;}
.stat-box{background:linear-gradient(160deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:14px;padding:16px 18px;position:relative;overflow:hidden;transition:transform .18s,border-color .18s;}
.stat-box::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--cyan),transparent);}
.stat-box:hover{transform:translateY(-2px);border-color:var(--cyan);}
.stat-box .ic{font-size:16px;opacity:.85;}
.stat-box .n{font-family:'Space Grotesk';font-size:26px;font-weight:700;color:var(--cyan-soft);margin-top:6px;}
.stat-box .l{font-size:11.5px;color:var(--ink-dim);margin-top:2px;}
.station-block{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-top:16px;transition:border-color .18s;}
.station-block h3{display:flex;align-items:center;gap:8px;}
details > summary{cursor:pointer;color:var(--cyan-soft);font-size:12.5px;font-weight:600;list-style:none;}
details > summary::-webkit-details-marker{display:none;}
details > summary:not(.btn)::after{content:'▸';display:inline-block;margin-left:6px;font-size:10px;transition:transform .18s;color:var(--ink-dim);}
details[open] > summary:not(.btn)::after{transform:rotate(90deg);}
details[open] > summary{margin-bottom:10px;}
.danger-zone{border:1px solid rgba(229,72,77,.25);background:rgba(229,72,77,.05);border-radius:12px;padding:14px 16px;margin-top:16px;}
.danger-zone .section-title{margin-top:0;}

/* ---- pantalla emergente de gestión de una estación puntual (panel de administración) ---- */
/* el navegador le pone "color: CanvasText" (negro) a todo <dialog> por defecto — sin este color
   explícito, cualquier texto de adentro que no tenga su propio color (celdas de tabla simples,
   "SIM activo", etc.) sale negro sobre el fondo oscuro y no se distingue */
dialog{color:var(--ink);}
dialog.station-modal,dialog.admin-modal{
  max-width:760px;width:92vw;max-height:86vh;overflow-y:auto;box-shadow:0 24px 60px -12px rgba(0,0,0,.55);
  opacity:0;transform:scale(.96) translateY(6px);
  transition:opacity .18s ease,transform .18s ease,overlay .18s ease allow-discrete,display .18s ease allow-discrete;
}
dialog.station-modal[open],dialog.admin-modal[open]{opacity:1;transform:scale(1) translateY(0);}
@starting-style{
  dialog.station-modal[open],dialog.admin-modal[open]{opacity:0;transform:scale(.96) translateY(6px);}
}
dialog.station-modal::backdrop,dialog.admin-modal::backdrop{background:rgba(4,16,31,.72);transition:opacity .18s ease allow-discrete;}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:6px;}
.coord-fmt-row{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end;}
.coord-fmt-row .field{margin-bottom:0;}
.module-license-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin:8px 0;}
.module-license-item{display:flex;align-items:center;gap:6px;font-size:12.5px;font-weight:400;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:7px 10px;cursor:pointer;}