:root{
  --bg:#f5f2ef;
  --panel:#ffffff;
  --primary:#8d0000;
  --primary-dark:#6d0000;
  --secondary:#273043;
  --gold:#e7c37b;
  --text:#25242a;
  --muted:#74737d;
  --border:#e8e2dd;
  --success:#198754;
  --warning:#b7791f;
  --danger:#b42318;
  --shadow:0 12px 34px rgba(58,29,24,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:linear-gradient(180deg,#f7f3f0,#f2ece7);color:var(--text)}
a{text-decoration:none;color:inherit}
.layout{display:flex;min-height:100vh}
.sidebar{width:300px;background:linear-gradient(180deg,var(--primary),var(--primary-dark));color:#fff;padding:24px 20px;display:flex;flex-direction:column;gap:24px;box-shadow:var(--shadow);position:sticky;top:0;height:100vh}
.brand{display:flex;gap:14px;align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);padding:14px;border-radius:18px}
.brand img{width:72px;height:72px;object-fit:contain;background:#fff;border-radius:14px;padding:6px}
.brand h1{margin:0;font-size:1.1rem;line-height:1.2}
.brand p{margin:4px 0 0;color:#f4d9c6;font-size:.9rem}
.menu{display:flex;flex-direction:column;gap:10px}
.menu a{padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);font-weight:600}
.menu a:hover,.menu a.active{background:#fff;color:var(--primary)}
.user-box{margin-top:auto;background:rgba(255,255,255,.08);padding:14px;border-radius:16px;border:1px solid rgba(255,255,255,.15)}
.user-box strong{display:block}
.user-box span{font-size:.9rem;color:#f4d9c6}
.content{flex:1;padding:26px}
.topbar{background:var(--panel);border:1px solid var(--border);border-radius:24px;padding:20px 24px;box-shadow:var(--shadow);margin-bottom:20px}
.topbar h2{margin:0;font-size:1.6rem}
.subtitle{color:var(--muted)}
.alerts,.login-alerts{display:grid;gap:10px;margin-bottom:18px}
.alert{padding:12px 14px;border-radius:12px;color:#fff;font-weight:600}
.alert.success{background:var(--success)}
.alert.warning{background:var(--warning)}
.alert.danger{background:var(--danger)}
.alert.info{background:#2563eb}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:24px;padding:22px;box-shadow:var(--shadow);margin-bottom:20px}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}
.panel-head h3{margin:0}
.cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:20px}
.stat-card{background:linear-gradient(135deg,#fff,#f7f3f0);border:1px solid var(--border);border-left:8px solid var(--primary);border-radius:22px;padding:20px;box-shadow:var(--shadow)}
.stat-title{color:var(--muted);font-weight:600}
.stat-value{font-size:2rem;font-weight:800;margin-top:8px;color:var(--primary)}
.two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:12px;border-bottom:1px solid var(--border);vertical-align:top;text-align:left}
th{color:var(--muted);font-size:.92rem}
.badge{display:inline-block;padding:7px 12px;border-radius:999px;font-size:.85rem;font-weight:700;background:#eee}
.badge.success{background:rgba(25,135,84,.12);color:var(--success)}
.badge.warning{background:rgba(183,121,31,.12);color:var(--warning)}
.badge.danger{background:rgba(180,35,24,.12);color:var(--danger)}
.btn{border:none;padding:11px 16px;border-radius:14px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-secondary{background:#efe8e2;color:var(--secondary)}
.btn-danger{background:var(--danger);color:#fff}
.btn-block{width:100%}
.inline-search{display:flex;gap:10px;flex-wrap:wrap}
.inline-search input{min-width:280px}
.head-actions,.actions{display:flex;gap:8px;align-items:center}
.actions form{margin:0}
.actions.wrap,.head-actions.vertical{flex-wrap:wrap}
.vehicle-list{display:grid;gap:12px}
.vehicle-card{display:block;padding:16px;border-radius:18px;border:1px solid var(--border);background:#faf8f6}
.vehicle-card strong{display:block;color:var(--primary)}
.vehicle-card span,.vehicle-card small{display:block;margin-top:4px}
.vehicle-card small{color:var(--muted)}
.empty-box{padding:18px;border:1px dashed #d8cec8;border-radius:16px;background:#fcfaf8;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid-2{grid-template-columns:1fr 1fr}
.full-row{grid-column:1 / -1}
.form-panel label{display:block;margin-bottom:8px;font-weight:700;color:var(--secondary)}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid #d9d0c9;border-radius:14px;background:#fff;font:inherit}
textarea{min-height:110px;resize:vertical}
.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}
.checkbox-row{display:flex;align-items:flex-end}
.expediente-top{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.timeline{display:grid;gap:16px}
.timeline-item{border:1px solid var(--border);border-left:6px solid var(--primary);border-radius:18px;padding:16px;background:#fffaf8}
.timeline-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:10px}
.timeline-head h4{margin:0 0 4px 0}
.timeline-head span{color:var(--muted)}
.timeline-body p{margin:8px 0}
.vehicle-mini-header{padding:14px 16px;background:#faf4ef;border:1px solid var(--border);border-radius:16px;margin-bottom:16px}
.vehicle-mini-header strong{display:block;color:var(--primary);font-size:1.1rem}
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:30px;position:relative;background:linear-gradient(180deg,#faf7f4 0 28%, var(--primary) 28% 100%);overflow:hidden}
.login-bg-shape{position:absolute;inset:auto -10% 40% -10%;height:320px;background:#fff;border-bottom:10px solid #e3c79a;border-radius:0 0 50% 50%/0 0 100% 100%;opacity:.95;transform:rotate(-2deg)}
.login-card-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;max-width:1200px;width:100%}
.login-brand-area{text-align:center;color:#2b2930;padding:18px}
.login-brand-area img{max-width:430px;width:100%;object-fit:contain;filter:drop-shadow(0 16px 28px rgba(0,0,0,.14))}
.login-brand-area h1{font-size:2.5rem;margin:10px 0 8px 0}
.login-brand-area p{font-size:1.05rem;color:#55515d;max-width:600px;margin:0 auto}
.login-card{background:rgba(255,255,255,.96);padding:28px;border-radius:24px;box-shadow:0 18px 50px rgba(0,0,0,.16);border:1px solid #f0e6de;max-width:390px;width:100%}
.login-card h2{margin-top:0;margin-bottom:18px;color:var(--primary)}
.login-card label{display:block;margin:12px 0 8px;font-weight:700}
.demo-box{margin-top:16px;border-radius:14px;background:#f6f1eb;padding:12px;color:#5f5b66;display:grid;gap:3px}
@media (max-width: 1100px){
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .two-col,.login-card-wrap{grid-template-columns:1fr}
}
@media (max-width: 840px){
  .layout{display:block}
  .sidebar{position:relative;width:auto;height:auto;border-radius:0 0 24px 24px}
  .content{padding:16px}
  .cards-grid,.form-grid,.form-grid-2{grid-template-columns:1fr}
  .expediente-top,.panel-head{flex-direction:column;align-items:stretch}
  .inline-search input{min-width:100%}
  .login-page{padding:20px}
  .login-brand-area h1{font-size:2rem}
}


/* ===== Enterprise login background using user-provided image ===== */
.login-page{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:32px;
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(90deg, rgba(121,0,0,.18), rgba(121,0,0,.06)),
    url('../img/login_bg.jpg') center center / cover no-repeat;
}
.login-page::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(0,0,0,.08));
}
.login-bg-shape{display:none}
.login-card-wrap{position:relative;z-index:2;grid-template-columns:1.1fr .9fr;max-width:1280px}
.login-brand-area{align-self:end;padding:20px 24px 70px;color:#ffffff;text-shadow:0 2px 10px rgba(255,255,255,.25)}
.login-brand-area img{max-width:360px;width:100%;object-fit:contain;filter:drop-shadow(0 10px 20px rgba(0,0,0,.18))}
.login-brand-area h1{font-size:3rem;margin:10px 0 8px;font-weight:900}
.login-brand-area p{font-size:1.15rem;max-width:540px;color:#ffffff}
.login-card{backdrop-filter:blur(4px);background:rgba(255,255,255,.94);border:1px solid rgba(255,255,255,.7)}
.login-card input:focus, .form-panel input:focus, .form-panel select:focus, .form-panel textarea:focus, .inline-search input:focus{
  outline:none;
  border-color:#bb8d5a;
  box-shadow:0 0 0 4px rgba(231,195,123,.22);
}

/* ===== Enterprise dashboard refinements ===== */
body{min-width:320px}
.content{background:linear-gradient(180deg,#f8f5f2 0%, #f3eeea 100%)}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:18px}
.topbar::after{
  content:'';
  width:140px;
  height:6px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--gold),var(--primary));
}
.panel{overflow:hidden}
.table-wrap{border:1px solid var(--border);border-radius:18px;background:#fff}
thead th{background:#fbf7f4;position:sticky;top:0;z-index:1}
tbody tr:hover{background:#fff9f5}
.vehicle-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.menu a{transition:.18s ease}
.btn{transition:.18s ease}
.btn:hover{transform:translateY(-1px)}
.empty-box{padding:24px;border:1px dashed #d8cbc0;border-radius:16px;background:#fff;color:var(--muted);text-align:center}
@media (max-width: 1100px){
  .login-brand-area{padding-bottom:10px}
}
@media (max-width: 840px){
  .topbar{display:block}
  .topbar::after{display:none}
  .login-page{padding:18px}
  .login-brand-area{padding:8px 6px 0}
}