:root{--primary:#175CD3;--bg:#F5F7FA;--text:#17202A;--muted:#667085;--border:#E4E7EC;--danger:#B42318}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Segoe UI,Arial,sans-serif;font-size:15px}
a{color:var(--primary);text-decoration:none}button,.button{appearance:none;border:0;background:var(--primary);color:#fff;padding:11px 16px;border-radius:9px;font-weight:650;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
button.secondary,.button.secondary{background:#fff;color:#344054;border:1px solid var(--border)}button.danger{background:var(--danger)}
.topbar{height:68px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 4vw;position:sticky;top:0;z-index:5}.brand{font-size:20px;font-weight:800;color:var(--text)}
.topbar nav{display:flex;align-items:center;gap:22px}.topbar form{margin:0}.link-button{background:none;color:var(--muted);padding:0}
.container{max-width:1280px;margin:0 auto;padding:34px 24px}.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.page-head h1{margin:0;font-size:30px}.muted{color:var(--muted)}
.panel,.ticket-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px;box-shadow:0 2px 8px rgba(16,24,40,.03)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.stat{background:#fff;border:1px solid var(--border);border-radius:13px;padding:20px}.stat strong{font-size:30px;display:block}.stat span{color:var(--muted)}
.toolbar{display:flex;gap:10px;margin-bottom:18px}.toolbar input{flex:1}
input,select{width:100%;padding:11px 12px;border:1px solid #D0D5DD;border-radius:8px;background:#fff;color:var(--text);font:inherit}label{display:block;font-weight:650;margin-bottom:15px}label small,td small{display:block;color:var(--muted);font-weight:400;margin-top:4px}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--border);vertical-align:middle}th{color:#475467;font-size:13px}.empty{text-align:center;color:var(--muted);padding:35px}
.badge{display:inline-block;padding:5px 9px;border-radius:20px;font-size:12px;font-weight:700}.badge.active{background:#ECFDF3;color:#027A48}.badge.inactive{background:#FEF3F2;color:#B42318}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}.form-actions,.actions,.danger-zone{display:flex;gap:10px;justify-content:flex-end}.instance-picker{max-width:500px;border-bottom:1px solid var(--border);margin-bottom:24px}
.ticket-card{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.ticket-card div{padding:16px;background:#F9FAFB;border-radius:10px}.ticket-card span{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}.ticket-card strong{font-size:17px}.danger-zone{margin-top:22px}
.two-cols{display:grid;grid-template-columns:380px 1fr;gap:22px}.panel h2{margin-top:0}.instance-card{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);padding:15px 0}.instance-card small{display:block;color:var(--muted);margin-top:4px}
.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(420px,100%);background:#fff;padding:35px;border:1px solid var(--border);border-radius:18px;box-shadow:0 18px 50px rgba(16,24,40,.10)}.auth-logo{width:54px;height:54px;border-radius:14px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:800}.auth-card h1{margin-bottom:4px}
.alert{padding:14px 17px;border-radius:10px;margin-bottom:20px}.alert.success{background:#ECFDF3;color:#027A48}.alert.error{background:#FEF3F2;color:#B42318}
@media(max-width:900px){.stats{grid-template-columns:1fr 1fr}.two-cols{grid-template-columns:1fr}.ticket-card{grid-template-columns:1fr 1fr}.topbar nav a:not(:first-child){display:none}}
@media(max-width:600px){.container{padding:22px 14px}.stats,.form-grid,.ticket-card{grid-template-columns:1fr}.page-head{align-items:flex-start;gap:15px}.topbar{padding:0 16px}.toolbar{flex-direction:column}}