:root {
  --bg: #08090B;
  --surface: #0D0F12;
  --elevated: #12151A;
  --hover: #181C22;
  --border: #1A1E26;
  --border-strong: #2A3140;
  --text: #F5F7FA;
  --muted: #8B92A0;
  --muted-dim: #5C6470;
  --primary: #4A6CF7;
  --primary-glow: rgba(74, 108, 247, 0.4);
  --success: #34D399;
  --success-glow: rgba(52, 211, 153, 0.25);
  --warning: #FBBF24;
  --warning-glow: rgba(251, 191, 36, 0.25);
  --danger: #F87171;
  --danger-glow: rgba(248, 113, 113, 0.25);
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --font-heading: 'Inter Tight', ui-sans-serif, system-ui, sans-serif;
  --font-body: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.011em;
  min-height: 100vh;
  background-image:
    radial-gradient(60rem 40rem at 50% -10%, rgba(74, 108, 247, 0.06), transparent 70%),
    radial-gradient(40rem 30rem at 100% 100%, rgba(74, 108, 247, 0.03), transparent 70%);
  background-attachment: fixed;
}
::selection { background: rgba(74, 108, 247, 0.25); }
.muted { color: var(--muted); }

.page { max-width: 1080px; margin: 0 auto; padding: 0 20px 80px; }
@media (min-width: 760px) { .page { padding: 0 24px 80px; } }

/* ─── Topbar ─── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px 0 28px;
  margin-bottom: 20px;
}

/* ─── Developer message ─── */
.dev-msg {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 18px 22px;
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.06), rgba(74, 108, 247, 0.04));
  border: 1px solid rgba(52, 211, 153, 0.15);
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
}
.dev-msg-icon { font-size: 22px; flex-shrink: 0; line-height: 1.4; }
.dev-msg-body { min-width: 0; }
.dev-msg-title {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--success); margin-bottom: 5px;
}
.dev-msg-text { font-size: 13px; color: var(--muted); line-height: 1.55; }
.brand { display: flex; align-items: center; gap: 14px; }
.logo {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  background: linear-gradient(135deg, var(--elevated), var(--surface));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px -4px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
}
.brand-name { font-family: var(--font-heading); font-weight: 700; font-size: 16px; letter-spacing: -0.02em; }
.brand-sub { font-size: 12px; color: var(--muted); margin-top: 1px; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.refresh-btn {
  font-size: 13px; color: var(--muted);
  padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); transition: all .2s ease;
  display: inline-flex; align-items: center; gap: 7px;
  font-weight: 500; cursor: pointer; font-family: var(--font-body);
}
.refresh-btn:hover { color: var(--text); border-color: var(--border-strong); background: var(--hover); transform: translateY(-1px); }
.refresh-btn.refreshing { pointer-events: none; opacity: 0.6; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.back-link {
  font-size: 13px; color: var(--muted); text-decoration: none;
  padding: 10px 16px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); transition: all .2s ease;
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 500;
}
.back-link:hover { color: var(--text); border-color: var(--border-strong); background: var(--hover); transform: translateY(-1px); }

/* ─── Overall banner ─── */
.overall {
  display: flex; align-items: center; gap: 24px;
  padding: 32px 36px;
  background: linear-gradient(135deg, var(--surface), var(--elevated));
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color .3s ease;
}
.overall-glow {
  content: ''; position: absolute; top: 0; left: 0; bottom: 0; width: 280px;
  background: radial-gradient(ellipse 280px 200px at 0% 50%, rgba(139,146,160,0.08), transparent 70%);
  pointer-events: none;
  transition: opacity .3s ease;
}
.overall-operational { border-color: rgba(52, 211, 153, 0.3); }
.overall-operational .overall-glow { background: radial-gradient(ellipse 280px 200px at 0% 50%, rgba(52,211,153,0.12), transparent 70%); }
.overall-partial { border-color: rgba(251, 191, 36, 0.3); }
.overall-partial .overall-glow { background: radial-gradient(ellipse 280px 200px at 0% 50%, rgba(251,191,36,0.12), transparent 70%); }
.overall-major { border-color: rgba(248, 113, 113, 0.35); }
.overall-major .overall-glow { background: radial-gradient(ellipse 280px 200px at 0% 50%, rgba(248,113,113,0.14), transparent 70%); }

.overall-dot {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 0 5px rgba(139, 146, 160, 0.12);
  flex-shrink: 0;
  transition: all .4s ease;
  position: relative; z-index: 1;
}
.overall-dot.operational { background: var(--success); box-shadow: 0 0 0 5px rgba(52, 211, 153, 0.18), 0 0 20px var(--success-glow); }
.overall-dot.partial { background: var(--warning); box-shadow: 0 0 0 5px rgba(251, 191, 36, 0.18), 0 0 20px var(--warning-glow); }
.overall-dot.major { background: var(--danger); box-shadow: 0 0 0 5px rgba(248, 113, 113, 0.18), 0 0 20px var(--danger-glow); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 5px rgba(248,113,113,0.18), 0 0 20px var(--danger-glow); }
  50% { box-shadow: 0 0 0 10px rgba(248,113,113,0.08), 0 0 30px var(--danger-glow); }
}

.overall-body { flex: 1; position: relative; z-index: 1; }
.overall-label {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted-dim); margin-bottom: 6px;
}
.overall h1 { font-family: var(--font-heading); font-size: 24px; font-weight: 700; letter-spacing: -0.025em; line-height: 1.2; }
.overall p { font-size: 14px; margin-top: 6px; color: var(--muted); }
.overall-meta { text-align: right; white-space: nowrap; position: relative; z-index: 1; }
.overall-meta-time { font-size: 13px; color: var(--text); font-weight: 500; }
.overall-meta-extra { font-size: 11px; margin-top: 3px; }

/* ─── Summary stats ─── */
.summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 40px;
}
@media (min-width: 760px) { .summary { grid-template-columns: repeat(5, 1fr); } }

.stat-tile {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color .2s ease, transform .2s ease;
}
.stat-tile:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.stat-tile-up { border-color: rgba(52, 211, 153, 0.2); }
.stat-tile-up .stat-tile-icon { color: var(--success); background: rgba(52, 211, 153, 0.1); }
.stat-tile-down { border-color: rgba(248, 113, 113, 0.2); }
.stat-tile-down .stat-tile-icon { color: var(--danger); background: rgba(248, 113, 113, 0.1); }

.stat-tile-icon {
  width: 36px; height: 36px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  background: var(--hover); color: var(--muted);
  flex-shrink: 0;
}
.stat-tile-body { min-width: 0; }
.stat-tile-value { font-family: var(--font-heading); font-size: 22px; font-weight: 700; letter-spacing: -0.02em; line-height: 1; }
.stat-tile-label { font-size: 11px; color: var(--muted); margin-top: 4px; letter-spacing: 0.02em; }

/* ─── Groups ─── */
.group { margin-bottom: 36px; }
.group-title {
  font-family: var(--font-heading);
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
}
.group-title::before {
  content: ''; width: 3px; height: 12px; border-radius: 2px; background: var(--primary);
}
.cards { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 760px) { .cards { grid-template-columns: 1fr 1fr; } }

/* ─── Card ─── */
.card {
  background: linear-gradient(180deg, var(--surface), var(--bg));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0;
  transition: border-color .2s ease, transform .2s ease;
  position: relative;
  overflow: hidden;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--success); opacity: 0; transition: opacity .2s ease;
}
.card-up::before { opacity: 0.7; background: linear-gradient(90deg, transparent, var(--success), transparent); }
.card-down::before { opacity: 0.8; background: linear-gradient(90deg, transparent, var(--danger), transparent); }
.card-unknown::before { opacity: 0.4; background: linear-gradient(90deg, transparent, var(--muted), transparent); }

.card-inner { padding: 20px 22px; }

.card-head { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; gap: 12px; }
.card-title-wrap { display: flex; align-items: center; gap: 10px; min-width: 0; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex-shrink: 0; }
.dot-up { background: var(--success); box-shadow: 0 0 0 3px rgba(52,211,153,0.14), 0 0 8px var(--success-glow); }
.dot-down { background: var(--danger); box-shadow: 0 0 0 3px rgba(248,113,113,0.14), 0 0 8px var(--danger-glow); animation: pulse-dot 2s ease-in-out infinite; }
.dot-unknown { background: var(--muted); }
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

.card-name { font-size: 14px; font-weight: 600; letter-spacing: -0.01em; }
.card-status-badge {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 4px;
  flex-shrink: 0;
}
.badge-up { color: var(--success); background: rgba(52,211,153,0.1); border: 1px solid rgba(52,211,153,0.2); }
.badge-down { color: var(--danger); background: rgba(248,113,113,0.1); border: 1px solid rgba(248,113,113,0.2); }
.badge-unknown { color: var(--muted); background: var(--hover); border: 1px solid var(--border); }

/* ─── Uptime big number ─── */
.card-uptime-row {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 14px;
}
.card-uptime {
  font-family: var(--font-heading); font-size: 28px; font-weight: 700; letter-spacing: -0.03em; line-height: 1;
}
.card-uptime .pct { color: var(--muted); font-weight: 500; font-size: 16px; margin-left: 1px; }
.card-uptime-label { font-size: 11px; color: var(--muted); letter-spacing: 0.02em; }
.card-uptime-label code { font-family: var(--font-mono); color: var(--text); font-size: 10px; }

/* ─── Bars (uptime 90j) ─── */
.bars-wrap { margin-bottom: 18px; }
.bars-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px;
}
.bars-title { font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-dim); }
.bars-range { font-size: 10px; color: var(--muted-dim); font-family: var(--font-mono); }
.bars { display: flex; align-items: flex-end; gap: 2px; height: 38px; }
.bar { flex: 1; min-width: 2px; height: 100%; border-radius: 2px; background: var(--hover); transition: opacity .15s ease, transform .15s ease; cursor: default; }
.bar-up { background: var(--success); }
.bar-partial { background: var(--warning); }
.bar-down { background: var(--danger); }
.bar-none { background: rgba(52, 211, 153, 0.12); }
.bar:hover { opacity: 0.75; transform: scaleY(1.06); transform-origin: bottom; }
.bars-axis { display: flex; justify-content: space-between; margin-top: 6px; font-size: 9px; color: var(--muted-dim); font-family: var(--font-mono); }

/* ─── Latency chart ─── */
.chart-wrap { margin-bottom: 16px; }
.chart-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.chart-title { font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-dim); }
.chart-current { font-size: 12px; color: var(--muted); }
.chart-current strong { color: var(--text); font-family: var(--font-heading); font-weight: 700; font-size: 15px; margin-right: 2px; }

.chart-container {
  position: relative;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  height: 120px;
}
.chart-svg { width: 100%; height: 100%; display: block; }
.chart-grid line { stroke: var(--border); stroke-width: 0.5; stroke-dasharray: 2 3; }
.chart-area { opacity: 0.9; }
.chart-line { fill: none; stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.chart-baseline { stroke: var(--border); stroke-width: 1; stroke-dasharray: 3 3; }
.chart-peak { fill: var(--text); }
.chart-peak-label { font-family: var(--font-mono); font-size: 9px; fill: var(--muted); }
.chart-empty {
  display: flex; align-items: center; justify-content: center;
  height: 100%; font-size: 11px; color: var(--muted-dim);
  font-family: var(--font-mono); letter-spacing: 0.04em;
}

/* ─── Card stats grid ─── */
.card-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 14px;
}
.stat-cell { background: var(--surface); padding: 10px 12px; }
.stat-cell-label { font-size: 9px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-dim); margin-bottom: 3px; }
.stat-cell-val { font-family: var(--font-heading); font-size: 14px; font-weight: 700; letter-spacing: -0.01em; }
.stat-cell-val.mono { font-family: var(--font-mono); font-size: 12px; }
.stat-cell-val .unit { color: var(--muted); font-weight: 500; font-size: 10px; margin-left: 1px; }

/* ─── Card footer ─── */
.card-foot {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 11px; color: var(--muted);
  padding-top: 12px; border-top: 1px solid var(--border);
}
.card-foot-left { display: flex; align-items: center; gap: 6px; }
.card-foot-code {
  font-family: var(--font-mono); font-size: 10px;
  padding: 2px 6px; border-radius: 4px;
  background: var(--hover); color: var(--muted);
}
.card-foot-code.code-up { color: var(--success); background: rgba(52,211,153,0.08); }
.card-foot-code.code-down { color: var(--danger); background: rgba(248,113,113,0.08); }

/* ─── History ─── */
.history { margin-top: 44px; }
.history-head { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 18px; gap: 12px; flex-wrap: wrap; }
.history h2 { font-family: var(--font-heading); font-size: 18px; font-weight: 700; letter-spacing: -0.02em; }
.history-note { font-size: 12px; display: block; margin-top: 4px; }
.history-count {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  padding: 5px 10px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  color: var(--muted);
}

.outage {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 8px;
  transition: border-color .2s ease, transform .2s ease;
}
.outage:hover { border-color: var(--border-strong); transform: translateX(2px); }
.outage-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--danger); flex-shrink: 0; box-shadow: 0 0 0 3px rgba(248,113,113,0.12), 0 0 8px var(--danger-glow); }
.outage-dot.resolved { background: var(--success); box-shadow: 0 0 0 3px rgba(52,211,153,0.12); }
.outage-body { flex: 1; min-width: 0; }
.outage-name { font-size: 14px; font-weight: 600; }
.outage-date { font-size: 12px; color: var(--muted); margin-top: 3px; font-family: var(--font-mono); }
.outage-dur { font-size: 13px; font-weight: 600; flex-shrink: 0; padding: 5px 10px; border-radius: var(--radius); background: var(--hover); }
.outage-ongoing { color: var(--danger); background: rgba(248,113,113,0.1); border: 1px solid rgba(248,113,113,0.2); }

.empty {
  padding: 32px; text-align: center; font-size: 13px; color: var(--muted);
  background: var(--surface); border: 1px dashed var(--border); border-radius: var(--radius-lg);
}

/* ─── Footer ─── */
.footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 48px; padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 12px; color: var(--muted);
}
.footer-left { display: flex; align-items: center; gap: 8px; }
.footer-sep { color: var(--muted-dim); }

/* ─── Skeleton ─── */
.skeleton { animation: sk 1.4s ease-in-out infinite; background: var(--hover); border-radius: var(--radius); }
@keyframes sk { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

@media (max-width: 600px) {
  .page { padding: 0 14px 60px; }
  .topbar { padding: 18px 0 20px; flex-wrap: wrap; gap: 12px; }
  .topbar-actions { width: 100%; justify-content: flex-end; }
  .dev-msg { padding: 14px 16px; gap: 10px; }
  .dev-msg-text { font-size: 12px; }
  .overall { flex-wrap: wrap; padding: 22px; gap: 16px; }
  .overall h1 { font-size: 20px; }
  .overall-meta { width: 100%; text-align: left; }
  .card-inner { padding: 18px 16px; }
  .card-uptime { font-size: 24px; }
  .card-stats { grid-template-columns: repeat(2, 1fr); }
  .bars { height: 32px; }
  .outage { flex-wrap: wrap; padding: 14px 16px; }
  .outage-dur { width: 100%; text-align: center; }
  .footer { flex-direction: column; gap: 8px; align-items: flex-start; }
  .summary { gap: 8px; }
  .stat-tile { padding: 12px 14px; }
  .stat-tile-value { font-size: 18px; }
}