:root{
  --bg:#f6f7f9; --card:#fff; --border:#e5e7eb; --text:#1f2937; --muted:#6b7280;
  --blue:#3b82f6; --green:#22c55e; --red:#ef4444; --amber:#f59e0b;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text)}

.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--card);border-bottom:1px solid var(--border)}
.brand{font-weight:700;text-decoration:none;color:var(--text);font-size:18px}
.topbar nav a{margin-left:18px;text-decoration:none;color:var(--muted);font-size:14px}
.topbar nav a:hover{color:var(--text)}

.container{max-width:960px;margin:32px auto;padding:0 24px}
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:16px;flex-wrap:wrap}
h1{font-size:24px;margin:0;display:flex;align-items:center;gap:10px}

.btn,button{background:var(--blue);color:#fff;border:none;padding:10px 16px;border-radius:8px;font-size:14px;cursor:pointer;text-decoration:none;display:inline-block}
.btn:hover,button:hover{background:#2563eb}

table{width:100%;border-collapse:collapse;background:var(--card);border-radius:12px;overflow:hidden;border:1px solid var(--border)}
th,td{text-align:left;padding:12px 16px;font-size:14px;border-bottom:1px solid var(--border)}
th{background:#fafafa;color:var(--muted);font-weight:600}
tr:last-child td{border-bottom:none}
table.monitors tbody tr{cursor:pointer}
table.monitors tbody tr:hover{background:#f9fafb}
.url{color:var(--muted);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.dot{width:9px;height:9px;border-radius:50%;display:inline-block;background:var(--muted);flex:0 0 auto}
.dot.up{background:var(--green)}
.dot.down{background:var(--red)}
.dot.pending{background:var(--amber)}
.dot.paused{background:var(--muted)}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:6px}
.stat-label{font-size:12px;color:var(--muted)}
.stat-value{font-size:22px;font-weight:700}

.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}
.card h2{font-size:16px;margin:0 0 16px}
.muted{color:var(--muted);font-weight:400}

.badge{padding:3px 8px;border-radius:6px;font-size:12px;font-weight:600}
.badge.resolved{background:#dcfce7;color:#166534}
.badge.ongoing{background:#fee2e2;color:#991b1b}

.form-card,.auth-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px;max-width:480px;margin:0 auto}
form label{display:block;margin-bottom:14px;font-size:14px;font-weight:600}
form label small{font-weight:400;color:var(--muted)}
input[type=text],input[type=email],input[type=password]{width:100%;padding:10px 12px;margin-top:6px;border:1px solid var(--border);border-radius:8px;font-size:14px}
input[type=range]{width:100%;margin-top:4px}
.range-scale{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin:6px 0 20px}

.error{background:#fee2e2;color:#991b1b;padding:10px 12px;border-radius:8px;font-size:14px;margin-bottom:16px}
.empty{background:var(--card);border:1px dashed var(--border);border-radius:12px;padding:40px;text-align:center;color:var(--muted)}
.url-link{color:var(--blue);text-decoration:none;font-size:14px;word-break:break-all}
a{color:var(--blue)}

@media(max-width:640px){ .stats{grid-template-columns:repeat(2,1fr)} }

/* Load-time phase breakdown */
.phasebar{display:flex;height:22px;border-radius:6px;overflow:hidden;background:var(--border)}
.phaseseg{height:100%}
.phaselegend{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;font-size:13px;color:var(--muted)}
.phaseitem{display:flex;align-items:center;gap:6px}
.phaseitem strong{color:var(--text);font-weight:600}
.swatch{width:10px;height:10px;border-radius:2px;display:inline-block}