:root {
  --bg: #ffffff;
  --panel: #fbfbfa;
  --panel-2: #f5f5f4;
  --card: #ffffff;
  --border: #eeeeec;
  --border-strong: #e0e0dd;
  --hover: #f5f5f4;
  --text: #1a1a18;
  --text-soft: #37352f;
  --muted: #8a8a82;
  --muted-2: #b3b3ac;
  --black: #1a1a18;
  --black-2: #2f2f2b;
  --green: #2f9e44;
  --green-soft: #ebfbee;
  --red: #e03131;
  --red-soft: #fff5f5;
  --amber: #b8860b;
  --amber-soft: #fdf6e3;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 0 0 1px rgba(15,15,15,.04), 0 2px 6px rgba(15,15,15,.04);
  --shadow-md: 0 0 0 1px rgba(15,15,15,.05), 0 8px 24px rgba(15,15,15,.08);
  --shadow-lg: 0 0 0 1px rgba(15,15,15,.05), 0 18px 50px rgba(15,15,15,.14);
  --font: 'Montserrat', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--text); text-decoration: none; font-weight: 500; }
a:hover { text-decoration: none; opacity: .7; }
h1, h2, h3 { letter-spacing: -0.025em; color: var(--text); }
::selection { background: #1a1a18; color: #fff; }

/* ---------- Auth ---------- */
.auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 20px; background: var(--bg);
}
.auth-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 40px; width: 100%; max-width: 408px;
  box-shadow: var(--shadow-lg);
}
.brand { font-size: 27px; font-weight: 800; margin-bottom: 6px; letter-spacing: -0.05em; color: var(--black); }
.brand span { color: var(--black); }
.subtitle { color: var(--muted); margin: 0 0 30px; font-size: 14px; font-weight: 500; }

.tabs { display: flex; gap: 2px; margin-bottom: 22px; background: var(--panel-2); padding: 4px; border-radius: 10px; }
.tab {
  flex: 1; padding: 9px; text-align: center; cursor: pointer;
  border-radius: 7px; color: var(--muted); font-weight: 600; font-size: 13.5px; transition: all .15s;
}
.tab.active { background: var(--card); color: var(--text); box-shadow: var(--shadow); }

label { display: block; font-size: 12.5px; color: var(--text-soft); font-weight: 600; margin: 16px 0 7px; }
input, select, textarea {
  width: 100%; padding: 11px 13px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: #fff;
  color: var(--text); font-size: 14px; font-family: inherit; font-weight: 500;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(26,26,24,.08);
}
input::placeholder { color: var(--muted-2); font-weight: 400; }
input:disabled { background: var(--panel-2); color: var(--muted); }

.btn {
  display: inline-block; cursor: pointer; border: 1px solid var(--black);
  background: var(--black); color: #fff; font-weight: 600; font-family: inherit;
  padding: 11px 18px; border-radius: var(--radius-sm); font-size: 14px; width: 100%;
  margin-top: 22px; transition: transform .06s, background .15s, opacity .15s;
}
.btn:hover { background: var(--black-2); }
.btn:active { transform: translateY(1px); }
.btn.secondary { background: #fff; color: var(--text-soft); border: 1px solid var(--border-strong); width: auto; margin: 0; font-weight: 600; }
.btn.secondary:hover { background: var(--hover); }
.btn.danger { background: #fff; color: var(--red); border: 1px solid #f0c5c5; width: auto; margin: 0; padding: 8px 13px; }
.btn.danger:hover { background: var(--red-soft); }
.btn.small { width: auto; margin: 0; padding: 7px 13px; font-size: 13px; }

.msg { margin-top: 16px; font-size: 13px; min-height: 18px; font-weight: 500; }
.msg.error { color: var(--red); }
.msg.success { color: var(--green); }

/* ---------- App shell ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 56px; border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.8); backdrop-filter: saturate(180%) blur(16px);
  position: sticky; top: 0; z-index: 20;
}
.topbar .brand { font-size: 18px; margin: 0; }
.topbar-left { display: flex; align-items: center; gap: 24px; }
.topnav { display: flex; gap: 2px; }
.topnav a {
  font-size: 13.5px; font-weight: 600; color: var(--muted); padding: 6px 12px;
  border-radius: 7px; transition: background .15s, color .15s;
}
.topnav a:hover { background: var(--hover); color: var(--text); opacity: 1; }
.topnav a.active { background: var(--panel-2); color: var(--text); }
.topbar .user { display: flex; align-items: center; gap: 14px; font-size: 13.5px; color: var(--muted); font-weight: 500; }
.topbar .user .uname { font-weight: 700; color: var(--text-soft); }

.container { max-width: 1080px; margin: 0 auto; padding: 36px 32px 64px; }

.grid { display: grid; gap: 14px; }
.grid.cards { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.grid.two { grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .grid.two { grid-template-columns: 1fr; } }

.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; transition: border-color .15s, box-shadow .15s;
}
.card h3 { margin: 0 0 16px; font-size: 12px; color: var(--muted); font-weight: 700; text-transform: uppercase; letter-spacing: .07em; }

.grid.cards .card:hover { box-shadow: var(--shadow); }

.stat { font-size: 32px; font-weight: 800; letter-spacing: -0.045em; line-height: 1.1; color: var(--text); }
.stat.accent { color: var(--black); }
.stat.good { color: var(--text); }
.stat-label { color: var(--muted); font-size: 12.5px; margin-top: 6px; font-weight: 600; }
.stat-sub { color: var(--muted); font-size: 12px; margin-top: 4px; }

.section-title { display:flex; align-items:center; justify-content:space-between; margin: 36px 0 14px; }
.section-title h2 { font-size: 17px; margin: 0; font-weight: 800; letter-spacing: -0.02em; }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 13px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 700; font-size: 10.5px; text-transform: uppercase; letter-spacing: .07em; }
tr:last-child td { border-bottom: none; }
tbody tr { transition: background .12s; }
tbody tr:hover { background: var(--hover); }
td { font-weight: 500; color: var(--text-soft); }

.badge {
  display: inline-block; padding: 3px 10px; border-radius: 6px;
  font-size: 11px; font-weight: 700; letter-spacing: .01em;
  border: 1px solid var(--border-strong); background: var(--panel-2); color: var(--text-soft);
}
.badge.ab { background: #1a1a18; color: #fff; border-color: #1a1a18; }
.badge.std { background: var(--panel-2); color: var(--muted); }
.badge.on { background: #fff; color: var(--green); border-color: #c3ebcb; }
.badge.off { background: #fff; color: var(--muted); border-color: var(--border-strong); }

.code-pill {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  background: var(--panel-2); padding: 3px 8px; border-radius: 6px;
  border: 1px solid var(--border); font-size: 12.5px; color: var(--text-soft); font-weight: 600;
}
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---------- Modal ---------- */
.modal-bg {
  position: fixed; inset: 0; background: rgba(15,15,15,.32);
  display: none; align-items: flex-start; justify-content: center; padding: 48px 20px; z-index: 50;
  overflow-y: auto; backdrop-filter: blur(3px);
}
.modal-bg.open { display: flex; }
.modal {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 30px; width: 100%; max-width: 640px;
  box-shadow: var(--shadow-lg); margin: auto;
}
.modal h2 { margin: 0 0 6px; font-size: 20px; font-weight: 800; }
.modal-close { float: right; cursor: pointer; color: var(--muted); font-size: 24px; line-height: 1; border: none; background: none; font-family: inherit; }
.modal-close:hover { color: var(--text); }

.variant-row { display: grid; grid-template-columns: 70px 1fr 70px 36px; gap: 8px; align-items: center; margin-bottom: 8px; }
.variant-row input { margin: 0; }
.checkbox-row { display: flex; align-items: flex-start; gap: 10px; margin-top: 16px; padding: 13px 14px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.checkbox-row input { width: auto; margin-top: 3px; }
.checkbox-row label { margin: 0; font-weight: 600; }

.muted { color: var(--muted); }
.hidden { display: none !important; }
.text-green { color: var(--green); font-weight: 700; }
.text-red { color: var(--red); font-weight: 700; }
.center { text-align: center; }
.empty { padding: 52px; text-align: center; color: var(--muted); font-weight: 500; }

/* ---------- Bars ---------- */
.bar-row { display: grid; grid-template-columns: 150px 1fr 80px; gap: 13px; align-items: center; margin-bottom: 11px; font-size: 13px; font-weight: 500;
  border-radius: 7px; padding: 3px 6px; margin-left: -6px; margin-right: -6px; cursor: default; transition: background .12s; }
.bar-row.is-hover { background: var(--hover); }
.bar-row .bar-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-soft); }
.bar-track { background: var(--panel-2); border-radius: 5px; height: 22px; overflow: hidden; }
.bar-fill { background: var(--black); height: 100%; border-radius: 5px; min-width: 3px; transition: width .5s cubic-bezier(.4,0,.2,1), filter .12s; }
.bar-fill.alt { background: #8a8a82; }
.bar-fill.g { background: #4a4a45; }
.bar-row.is-hover .bar-fill { filter: brightness(1.25); }
.bar-val { text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; color: var(--text); }
.bar-val .pct { color: var(--muted); font-size: 11px; font-weight: 600; }

/* ---------- Timeline ---------- */
.spark { display: flex; align-items: flex-end; gap: 6px; height: 150px; padding-top: 6px; }
.spark-col-wrap { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; }
.spark-col { background: var(--black); border-radius: 4px 4px 0 0; min-height: 3px; cursor: pointer; transition: background .12s, transform .12s; }
.spark-col.is-hover { background: var(--black-2); transform: scaleY(1.015); }
.spark-labels { display: flex; gap: 6px; margin-top: 9px; }
.spark-labels span { flex: 1; text-align: center; font-size: 9.5px; color: var(--muted); font-weight: 600; }
.spark-foot { margin-top: 14px; font-size: 11.5px; font-weight: 600; text-align: center; color: var(--muted); }

.flag { font-size: 15px; margin-right: 4px; }

/* ---------- Tooltip ---------- */
.chart-tip {
  position: fixed; z-index: 200; pointer-events: none;
  background: #1a1a18; color: #fff; padding: 11px 13px; border-radius: 10px;
  font-size: 12.5px; font-weight: 600; line-height: 1.5; max-width: 280px;
  box-shadow: 0 12px 30px rgba(15,15,15,.32); opacity: 0; transform: translateY(4px);
  transition: opacity .12s, transform .12s; letter-spacing: 0;
}
.chart-tip.show { opacity: 1; transform: translateY(0); }
.chart-tip strong { display: block; font-weight: 700; font-size: 13px; margin-bottom: 5px; }
.chart-tip .t-row { display: flex; align-items: center; gap: 7px; color: #c9c9c4; font-weight: 500; }
.chart-tip .t-dot { width: 7px; height: 7px; border-radius: 50%; background: #fff; flex: none; }
.chart-tip .t-dot.ok { background: #51cf66; }
.chart-tip .t-url { display: block; margin-top: 6px; padding-top: 6px; border-top: 1px solid rgba(255,255,255,.14); color: #9a9a94; font-weight: 500; font-size: 11px; word-break: break-all; }

/* ---------- Live indicator ---------- */
.live-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--green-soft); color: var(--green); border: 1px solid #c3ebcb;
  padding: 4px 11px 4px 9px; border-radius: 99px; font-size: 11px; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase;
}
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); position: relative; }
.live-dot::after { content: ''; position: absolute; inset: 0; border-radius: 50%; background: var(--green); animation: livePulse 1.6s ease-out infinite; }
@keyframes livePulse { 0% { transform: scale(1); opacity: .6; } 100% { transform: scale(3); opacity: 0; } }
.live-dot.flash { animation: liveFlash .5s ease; }
@keyframes liveFlash { 0% { box-shadow: 0 0 0 0 rgba(47,158,68,.5); } 100% { box-shadow: 0 0 0 9px rgba(47,158,68,0); } }

/* ---------- Stats page ---------- */
.stats-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 6px; }
.back-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 18px; }
.back-link:hover { color: var(--text); opacity: 1; }
.stats-title { font-size: 28px; font-weight: 800; letter-spacing: -0.035em; margin: 0; }
.stats-meta { color: var(--muted); font-size: 12.5px; margin: 6px 0 0; font-weight: 500; }
.stats-sub { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 10px 0 0; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(10px);
  background: var(--black); color: #fff; padding: 11px 20px; border-radius: 10px;
  font-size: 13.5px; font-weight: 600; z-index: 100; opacity: 0;
  transition: opacity .2s, transform .2s; pointer-events: none; box-shadow: var(--shadow-lg);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.divider { height: 1px; background: var(--border); margin: 26px 0; }