:root{--background:#f6f7f9;--foreground:#18202a;--muted:#667085;--line:#d9dee7;--panel:#ffffff;--accent:#0f766e;--accent-strong:#0b4f4a;--warning:#b45309;--danger:#b42318;--ok:#027a48}*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--foreground);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,select,textarea{font:inherit}.shell{min-height:100vh;display:grid;grid-template-columns:260px minmax(0,1fr)}.sidebar{background:#18202a;color:#f8fafc;padding:24px 18px;max-height:100vh;overflow:auto}.brand{display:flex;align-items:center;gap:10px;font-weight:700;margin-bottom:28px}.nav{display:grid;grid-gap:8px;gap:8px}.nav button{display:flex;align-items:center;gap:10px;width:100%;color:#dbe4ef;background:transparent;border:0;border-radius:6px;padding:10px;text-align:left}.nav button.active{background:#263241;color:#ffffff}.main{min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 28px;border-bottom:1px solid var(--line);background:var(--panel)}.topbar h1{font-size:22px;margin:0 0 4px}.topbar p{margin:0;color:var(--muted)}.topbar-action,.upload-form button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:6px;background:var(--accent);color:#ffffff;padding:10px 14px;font-weight:650;white-space:nowrap}.topbar-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.topbar-action.secondary{border:1px solid var(--line);background:#ffffff;color:var(--foreground)}.content{padding:24px 28px}.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:12px;gap:12px;margin-bottom:18px}.metric{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px}.metric span{color:var(--muted);font-size:13px}.metric 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var(--line);text-align:left;vertical-align:top;font-size:14px}.ticket-table tbody tr{cursor:pointer}.ticket-table tbody tr.selected-row,.ticket-table tbody tr:hover{background:#f4faf9}.ticket-table th{color:var(--muted);font-weight:600;background:#fbfcfe}.ticket-title{font-weight:650}.ticket-meta{color:var(--muted);font-size:13px;margin-top:4px}.badge{display:inline-flex;align-items:center;min-height:24px;border-radius:999px;padding:2px 9px;font-size:12px;font-weight:650;background:#eef2f6;color:#364152}.badge.critical,.badge.high{background:#fef3f2;color:var(--danger)}.badge.medium{background:#fffaeb;color:var(--warning)}.badge.closed,.badge.resolved{background:#ecfdf3;color:var(--ok)}.badge.sla.active{background:#eef2f6;color:#364152}.badge.sla.warning{background:#fffaeb;color:var(--warning)}.badge.sla.breached{background:#fef3f2;color:var(--danger)}.badge.sla.completed{background:#ecfdf3;color:var(--ok)}.detail-body{padding:16px}.detail-body h3{margin:0 0 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