/* ===================================================================
   GASC · Plataforma — sistema visual portado del prototipo validado
   =================================================================== */
:root{
  --navy:#0d2a4a;
  --navy-dark:#0a1f38;
  --blue:#1d5fd6;
  --blue-light:#e8f0fd;
  --green:#1ea672;
  --green-light:#e6f7ef;
  --amber:#e0a300;
  --amber-light:#fdf3da;
  --red:#d23c3c;
  --red-light:#fbe8e8;
  --gray-50:#f7f8fa;
  --gray-100:#eef1f5;
  --gray-200:#e1e6ec;
  --gray-300:#c9d1db;
  --gray-500:#7c8a9c;
  --gray-700:#445268;
  --gray-900:#1c2533;
  --white:#ffffff;
  --radius:10px;
  --shadow-sm:0 1px 2px rgba(13,42,74,0.06), 0 1px 1px rgba(13,42,74,0.04);
  --shadow-md:0 4px 14px rgba(13,42,74,0.08);
  font-size:16px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  background:var(--gray-50);
  color:var(--gray-900);
  -webkit-font-smoothing:antialiased;
}
#app{min-height:100vh;display:flex;flex-direction:column;}
a{text-decoration:none;color:inherit;}

/* ===== TOP NAV ===== */
.topbar{
  background:var(--white);
  border-bottom:1px solid var(--gray-200);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;height:60px;position:sticky;top:0;z-index:50;gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:28px;min-width:0;flex:1;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-logo{width:38px;height:38px;border-radius:8px;object-fit:contain;background:white;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text b{font-size:14px;font-weight:800;color:var(--navy);letter-spacing:0.2px;}
.brand-text span{font-size:10.5px;color:var(--gray-500);font-weight:500;}

.navlinks{display:flex;align-items:center;gap:4px;overflow-x:auto;}
.navlink{
  display:flex;align-items:center;gap:7px;padding:9px 14px;border-radius:8px;
  font-size:13.5px;font-weight:600;color:var(--gray-700);
  cursor:pointer;white-space:nowrap;user-select:none;
  transition:background .15s, color .15s;border:none;background:none;
}
.navlink svg{width:16px;height:16px;flex-shrink:0;}
.navlink:hover{background:var(--gray-100);}
.navlink.active{background:var(--navy);color:white;}

.topbar-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.terminal-pill{
  display:flex;align-items:center;gap:8px;background:var(--gray-100);border:1px solid var(--gray-200);
  border-radius:8px;padding:8px 12px;font-size:13px;font-weight:600;color:var(--navy);cursor:pointer;white-space:nowrap;
}
.terminal-pill svg{width:14px;height:14px;color:var(--gray-500);}
.user-pill{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--navy);}
.user-avatar{
  width:28px;height:28px;border-radius:50%;background:var(--blue-light);color:var(--blue);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;flex-shrink:0;
}
.user-role-badge{
  font-size:10px;font-weight:800;color:var(--gray-500);background:var(--gray-100);
  padding:3px 8px;border-radius:999px;text-transform:uppercase;letter-spacing:0.3px;white-space:nowrap;
}

/* ===== LAYOUT ===== */
.page{flex:1;padding:28px 32px 60px;max-width:1320px;width:100%;margin:0 auto;}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;flex-wrap:wrap;}
.page-title{font-size:24px;font-weight:800;color:var(--navy);letter-spacing:-0.2px;margin:0;}
.page-sub{font-size:13.5px;color:var(--gray-500);margin-top:4px;font-weight:500;}
.page-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}

/* ===== CARDS / PANELS ===== */
.panel{background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);box-shadow:var(--shadow-sm);}
.panel-pad{padding:22px 24px;}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--gray-100);}
.panel-head h3{font-size:11.5px;font-weight:800;color:var(--gray-500);letter-spacing:0.6px;text-transform:uppercase;margin:0;}

.grid{display:grid;gap:18px;}
.grid-2{grid-template-columns:1fr 1fr;}
.grid-3{grid-template-columns:1fr 1fr 1fr;}
.grid-4{grid-template-columns:1fr 1fr 1fr 1fr;}
.nueva-carga-grid{grid-template-columns:1.4fr 1fr;gap:20px;align-items:flex-start;}
@media (max-width:980px){.grid-2,.grid-3,.grid-4,.nueva-carga-grid{grid-template-columns:1fr;}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}

/* ===== FORM ELEMENTS ===== */
label.field-label{display:block;font-size:12px;font-weight:700;color:var(--gray-700);margin-bottom:7px;letter-spacing:0.1px;}
label.field-label .req{color:var(--red);}
.field{margin-bottom:18px;}
select.input, input.input, textarea.input{
  width:100%;padding:11px 13px;border:1.5px solid var(--gray-200);border-radius:8px;
  font-size:14px;font-weight:600;color:var(--gray-900);background:var(--white);outline:none;
  font-family:inherit;transition:border-color .15s, box-shadow .15s;
}
select.input{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237c8a9c' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 13px center;padding-right:34px;}
select.input:disabled, input.input:disabled{background:var(--gray-50);color:var(--gray-500);cursor:not-allowed;}
.input:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-light);}
textarea.input{resize:vertical;min-height:80px;}
.input-error{border-color:var(--red) !important;}
.field-hint{font-size:11.5px;color:var(--gray-500);margin-top:5px;font-weight:500;}
.field-error{font-size:11.5px;color:var(--red);margin-top:5px;font-weight:600;}

.input-suffix-wrap{position:relative;}
.input-suffix-wrap .input{padding-right:46px;}
.input-suffix{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-size:12.5px;font-weight:700;color:var(--gray-500);pointer-events:none;}

/* Toggle switch */
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:2px 0;}
.toggle-row .field-label{margin:0;}
.switch{position:relative;width:42px;height:24px;flex-shrink:0;}
.switch input{opacity:0;width:0;height:0;}
.switch .track{position:absolute;inset:0;background:var(--gray-300);border-radius:999px;cursor:pointer;transition:background .15s;}
.switch .track:before{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;background:white;border-radius:50%;transition:transform .15s;box-shadow:0 1px 3px rgba(0,0,0,0.2);}
.switch input:checked + .track{background:var(--blue);}
.switch input:checked + .track:before{transform:translateX(18px);}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 18px;border-radius:8px;
  font-size:13.5px;font-weight:700;cursor:pointer;border:none;font-family:inherit;white-space:nowrap;
  transition:filter .15s, background .15s, border-color .15s;}
.btn svg{width:15px;height:15px;}
.btn-primary{background:var(--blue);color:white;}
.btn-primary:hover{filter:brightness(1.08);}
.btn-primary:disabled{background:var(--gray-300);cursor:not-allowed;}
.btn-navy{background:var(--navy);color:white;}
.btn-navy:hover{filter:brightness(1.15);}
.btn-outline{background:white;color:var(--navy);border:1.5px solid var(--gray-200);}
.btn-outline:hover{border-color:var(--gray-300);background:var(--gray-50);}
.btn-ghost{background:none;color:var(--gray-700);}
.btn-ghost:hover{background:var(--gray-100);}
.btn-danger{background:var(--red);color:white;}
.btn-danger:hover{filter:brightness(1.08);}
.btn-sm{padding:7px 12px;font-size:12.5px;}
.btn-block{width:100%;}

/* Section divider label */
.section-label{font-size:11.5px;font-weight:800;color:var(--gray-500);letter-spacing:0.6px;text-transform:uppercase;margin:0 0 14px;display:flex;align-items:center;gap:8px;}
.section-label .bar{width:3px;height:13px;background:var(--blue);border-radius:2px;display:inline-block;}

/* Badges / pills */
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;font-size:11.5px;font-weight:700;}
.badge-green{background:var(--green-light);color:var(--green);}
.badge-amber{background:var(--amber-light);color:var(--amber);}
.badge-red{background:var(--red-light);color:var(--red);}
.badge-gray{background:var(--gray-100);color:var(--gray-700);}
.badge-blue{background:var(--blue-light);color:var(--blue);}
.dot{width:7px;height:7px;border-radius:50%;display:inline-block;}
.dot-green{background:var(--green);}
.dot-amber{background:var(--amber);}
.dot-red{background:var(--red);}
.dot-gray{background:var(--gray-300);}

/* SOC pill */
.soc-pill{position:relative;width:100%;height:30px;border-radius:999px;background:var(--gray-100);overflow:hidden;display:flex;align-items:center;}
.soc-pill .fill{position:absolute;left:0;top:0;height:100%;background:var(--navy);border-radius:999px;transition:width .4s;}
.soc-pill .fill.low{background:var(--red);}
.soc-pill .fill.mid{background:var(--amber);}
.soc-pill .fill.high{background:var(--green);}
.soc-pill .label{position:relative;z-index:2;padding:0 12px;font-size:12.5px;font-weight:800;color:white;margin-left:auto;}
.soc-pill .label.dark-text{color:var(--navy);}

/* Alert banner */
.alert{display:flex;align-items:flex-start;gap:10px;padding:13px 15px;border-radius:8px;font-size:13px;font-weight:600;margin-bottom:18px;}
.alert svg{width:17px;height:17px;flex-shrink:0;margin-top:1px;}
.alert-red{background:var(--red-light);color:#9c2c2c;}
.alert-amber{background:var(--amber-light);color:#8a6300;}
.alert-blue{background:var(--blue-light);color:#16458f;}
.alert-green{background:var(--green-light);color:#136b48;}

/* KPI cards */
.kpi-card{padding:18px 20px;display:flex;flex-direction:column;gap:6px;}
.kpi-top{display:flex;align-items:center;justify-content:space-between;}
.kpi-label{font-size:12px;font-weight:700;color:var(--gray-500);}
.kpi-icon{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.kpi-icon svg{width:16px;height:16px;}
.kpi-value{font-size:25px;font-weight:800;color:var(--navy);letter-spacing:-0.4px;}
.kpi-foot{font-size:11.5px;color:var(--gray-500);font-weight:600;}

/* Tables */
.table-wrap{overflow-x:auto;}
table.data-table{width:100%;border-collapse:collapse;font-size:13px;min-width:900px;}
table.data-table th{text-align:left;padding:11px 14px;background:var(--gray-50);font-size:11px;font-weight:800;color:var(--gray-500);text-transform:uppercase;letter-spacing:0.4px;border-bottom:1px solid var(--gray-200);white-space:nowrap;position:sticky;top:0;}
table.data-table td{padding:13px 14px;border-bottom:1px solid var(--gray-100);color:var(--gray-900);font-weight:600;white-space:nowrap;}
table.data-table tbody tr:hover{background:var(--gray-50);}
table.data-table .muted{color:var(--gray-500);font-weight:500;}

/* Bus cards grid */
.bus-card{background:white;border:1px solid var(--gray-200);border-radius:10px;padding:16px;display:flex;flex-direction:column;gap:10px;}
.bus-card-top{display:flex;align-items:center;justify-content:space-between;}
.bus-card-id{font-size:14px;font-weight:800;color:var(--navy);}
.bus-card-meta{font-size:11.5px;color:var(--gray-500);font-weight:600;display:flex;flex-direction:column;gap:2px;}

/* Empty state */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 24px;text-align:center;color:var(--gray-500);}
.empty-state svg{width:42px;height:42px;color:var(--gray-300);margin-bottom:14px;}
.empty-state b{color:var(--gray-700);font-size:14px;display:block;margin-bottom:4px;}
.empty-state span{font-size:12.5px;}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(13,30,53,0.55);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px;backdrop-filter:blur(2px);}
.modal{background:white;border-radius:14px;width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,0.3);}
.modal-head{padding:20px 24px;border-bottom:1px solid var(--gray-100);display:flex;align-items:center;justify-content:space-between;}
.modal-head h2{font-size:17px;font-weight:800;color:var(--navy);margin:0;}
.modal-close{cursor:pointer;color:var(--gray-500);background:none;border:none;padding:4px;font-size:20px;line-height:1;}
.modal-body{padding:22px 24px;}
.modal-foot{padding:16px 24px;border-top:1px solid var(--gray-100);display:flex;justify-content:flex-end;gap:10px;}

/* Login */
.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg, var(--navy-dark) 0%, var(--navy) 55%, #163a63 100%);padding:20px;}
.login-card{background:white;border-radius:16px;padding:40px 36px;max-width:400px;width:100%;box-shadow:0 30px 70px rgba(0,0,0,0.35);text-align:center;}
.login-logo{width:88px;height:auto;max-height:64px;object-fit:contain;margin:0 auto 18px;display:block;}
.login-card h1{font-size:19px;font-weight:800;color:var(--navy);margin:0 0 6px;}
.login-card p{font-size:13px;color:var(--gray-500);margin:0 0 26px;font-weight:500;line-height:1.5;}
.login-card .field{text-align:left;}
.login-foot{margin-top:20px;font-size:11.5px;color:var(--gray-500);}

.footer-note{text-align:center;padding:22px 0 6px;font-size:11.5px;color:var(--gray-500);font-weight:500;}

/* Tabs (admin) */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--gray-200);margin-bottom:22px;overflow-x:auto;}
.tab{padding:11px 16px;font-size:13.5px;font-weight:700;color:var(--gray-500);cursor:pointer;border:none;background:none;border-bottom:2px solid transparent;white-space:nowrap;}
.tab:hover{color:var(--gray-700);}
.tab.active{color:var(--navy);border-bottom-color:var(--blue);}

/* utility */
.flex{display:flex;}
.items-center{align-items:center;}
.justify-between{justify-content:space-between;}
.gap-8{gap:8px;}
.gap-12{gap:12px;}
.mt-0{margin-top:0;}
.mb-0{margin-bottom:0;}
.text-right{text-align:right;}
.w-full{width:100%;}
.hidden{display:none !important;}
.scroll-x{overflow-x:auto;}
.toast-wrap{position:fixed;top:74px;left:50%;transform:translateX(-50%);z-index:300;display:flex;flex-direction:column;gap:10px;align-items:center;}
.toast{background:var(--navy);color:white;padding:12px 18px;border-radius:9px;font-size:13px;font-weight:700;box-shadow:0 10px 30px rgba(0,0,0,0.25);display:flex;align-items:center;gap:9px;animation:slideIn .25s ease;}
.toast svg{width:16px;height:16px;flex-shrink:0;}
.toast.error{background:var(--red);}
.toast.success{background:var(--green);}
@keyframes slideIn{from{opacity:0;transform:translateY(-12px);}to{opacity:1;transform:translateY(0);}}

@media (max-width:860px){
  .topbar{padding:0 10px;gap:8px;}
  .brand-text span{display:none;}
  .topbar-left{gap:10px;}
  .navlinks{gap:0;}
  .navlink{padding:9px 10px;}
  .navlinks .navlink-text{display:none;}
  #terminalPillLabel{max-width:70px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;}
  .terminal-pill{padding:8px 9px;}
  .page{padding:16px 12px 50px;}
}
@media (max-width:480px){
  .brand-text{display:none;}
  #terminalPillLabel{display:none;}
  .terminal-pill{padding:8px;}
}