:root{--primary:#0345bf;--primary-dark:#0345bf;--success:#2e7d32;--danger:#c62828;--info:#1565c0;--bg:#EBF3FE;--card:#fff;--text:#22303d;--border:#d7e0ea;--warning:#ed6c02}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
.container{width:min(1240px,92%);margin:0 auto}.topbar{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:18px 0;margin-bottom:24px}
.flex{display:flex}.between{justify-content:space-between}.center{align-items:center}.sub{margin:2px 0 0;opacity:.9}.userbox{text-align:right;font-size:14px}
.card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 6px 18px rgba(15,76,129,.08)}.login-card{max-width:520px;margin:40px auto}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.full{grid-column:1/-1}.three-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
label{display:block;font-weight:bold;margin-bottom:6px}input[type=text],input[type=password],input[type=email],input[type=date],select,textarea,input[type=file]{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#fff}
textarea{resize:vertical}.btn{display:inline-block;background:var(--primary);color:#fff;border:none;padding:10px 16px;border-radius:8px;text-decoration:none;cursor:pointer}.btn-outline{background:#fff;color:var(--primary);border:1px solid var(--primary)}.btn-danger{background:var(--danger)}.btn-sm{padding:6px 10px;font-size:13px}
.alert{padding:12px 14px;border-radius:8px;margin-bottom:14px}.alert-success{background:#e8f5e9;color:#1b5e20}.alert-danger{background:#ffebee;color:#b71c1c}.alert-info{background:#e3f2fd;color:#0d47a1}
.filters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:16px}.align-end{display:flex;align-items:flex-end}.actions{margin-bottom:15px;display:flex;gap:8px;flex-wrap:wrap}.actions-inline{display:flex;gap:6px;flex-wrap:wrap}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}th{background:#eef4fa}
.badge{display:inline-block;min-width:92px;text-align:center;padding:6px 10px;border-radius:999px;color:#fff;font-weight:bold;font-size:13px}.badge-pendiente{background:var(--success)}.badge-vencida{background:var(--danger)}.badge-resuelta{background:var(--info)}
.muted{color:#6b7a8a}.footer{padding:22px 0 30px;color:#6b7a8a}@media (max-width:860px){.form-grid,.filters,.three-cols{grid-template-columns:1fr}.flex.between{flex-direction:column;align-items:flex-start;gap:12px}.userbox{text-align:left}}