:root {
  --bg: #e8eef5;
  --bg-soft: #f5f8fb;
  --card: #ffffff;
  --line: #c5d0de;
  --line-soft: #dce3ec;
  --text: #152033;
  --muted: #5a6b80;
  --accent: #0a6ebd;
  --accent-soft: #e3f0fb;
  --danger: #c0392b;
  --danger-soft: #fdecea;
  --ok: #1a7f4b;
  --ok-soft: #e6f6ee;
  --shadow: 0 1px 2px rgba(21, 32, 51, 0.06), 0 8px 24px rgba(21, 32, 51, 0.06);
  --radius: 12px;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --sans: "IBM Plex Sans", "Segoe UI", "Noto Sans Myanmar", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(900px 420px at 0% -10%, #d4e6f7 0%, transparent 55%),
    radial-gradient(700px 380px at 100% 0%, #d9ebe3 0%, transparent 50%),
    var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--sans);
}

.muted { color: var(--muted); }

/* —— App layout: sidebar + one active view —— */
.layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100dvh;
  max-width: 1200px;
  margin: 0 auto;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 0.75rem;
  background: var(--card);
  border-right: 1px solid var(--line-soft);
  position: sticky;
  top: 0;
  height: 100dvh;
  z-index: 20;
}

.nav-brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.35rem 0.65rem 0.85rem;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 0.35rem;
}

.nav-brand strong {
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
  overflow: auto;
}

.nav-item {
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
  font: inherit;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}

.nav-item:hover { background: var(--bg-soft); color: var(--text); }

.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.nav-foot {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line-soft);
}

.main {
  min-width: 0;
  padding: 0.75rem 0 2.5rem;
}

.main-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 1rem 0.25rem;
}

.view-title {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.menu-btn { display: none; }

.view[hidden] { display: none !important; }

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(21, 32, 51, 0.35);
  z-index: 15;
}

.grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  padding: 0.5rem 1rem 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  margin: 0.85rem 1rem;
  box-shadow: var(--shadow);
}

.stat {
  margin: 0;
  padding: 1rem 1.05rem;
}

.stat b {
  font-size: 1.65rem;
  display: block;
  margin-top: 0.2rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.stat p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

h1, h2 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.card > h2 + .muted,
.card > h1 + .muted {
  margin-top: 0;
  margin-bottom: 0.85rem;
}

.section-label {
  display: block;
  margin: 1.15rem 0 0.55rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line-soft);
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.section-label:first-of-type {
  margin-top: 0.35rem;
  padding-top: 0;
  border-top: 0;
}

label {
  display: block;
  margin: 0.75rem 0 0.35rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

input, textarea, select {
  width: 100%;
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font: inherit;
}

input:focus, textarea:focus, select:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 45%, white);
  border-color: var(--accent);
}

.check {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  color: var(--text);
  font-weight: 500;
  margin: 0.55rem 0;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  background: var(--bg-soft);
  border: 1px solid transparent;
}

.check:hover { border-color: var(--line-soft); }
.check input { width: auto; margin: 0; }

.row {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
  align-items: end;
}

.row input { flex: 1; min-width: 140px; }

.btn {
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
}

.btn:hover { background: #dde5ef; }

.btn.accent {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  font-weight: 700;
}

.btn.accent:hover { filter: brightness(1.05); }

.chip {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.65rem;
  border-radius: 99px;
  background: var(--bg-soft);
  border: 1px solid var(--line-soft);
}

.chip.on {
  background: var(--ok-soft);
  color: var(--ok);
  border-color: color-mix(in srgb, var(--ok) 25%, white);
}

.chip.off {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 25%, white);
}

table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td {
  text-align: left;
  padding: 0.65rem 0.45rem;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
th {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.ip-meta { color: var(--muted); font-size: 0.78rem; margin-top: 2px; }

.auth {
  min-height: 100vh;
  width: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(420px, 92vw);
  margin: 0;
}

.auth-card h1 { font-size: 1.45rem; }
.auth-card .btn { width: 100%; margin-top: 0.85rem; }

#app[hidden], #auth[hidden] { display: none !important; }

.app-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: flex-start;
}

.app-row:last-of-type { border-bottom: 0; }

.chart-block { margin-top: 1rem; }
.chart-title { font-size: 0.85rem; margin: 0 0 0.5rem; color: var(--muted); font-weight: 600; }
.chart { display: flex; flex-direction: column; gap: 0.35rem; }
.chart-row {
  display: grid;
  grid-template-columns: minmax(5rem, 7.5rem) 1fr 2.5rem;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.8rem;
}
.chart-row span.label { color: var(--muted); font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chart-bar-track {
  height: 0.55rem;
  background: var(--bg-soft);
  border-radius: 99px;
  overflow: hidden;
}
.chart-bar {
  height: 100%;
  background: linear-gradient(90deg, #0a6ebd, #1a8fd4);
  border-radius: 99px;
  min-width: 2px;
}
.chart-row span.n { text-align: right; font-weight: 600; font-family: var(--mono); }

.app-rules {
  margin-top: 0.5rem;
  padding: 0.65rem;
  background: var(--bg-soft);
  border-radius: 10px;
  display: grid;
  gap: 0.4rem;
  grid-template-columns: 1fr 1fr;
}
.app-rules label { font-size: 0.78rem; color: var(--muted); }
.app-rules input { width: 100%; }

@media (max-width: 520px) {
  .app-rules { grid-template-columns: 1fr; }
  .chart-row { grid-template-columns: 4.5rem 1fr 2rem; }
}


.err { color: var(--danger); margin: 0.5rem 0 0; }
.ok { color: var(--ok); margin: 0.5rem 0 0; }

code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: #0a4f8a;
  background: var(--accent-soft);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

.tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tag.success { background: var(--ok-soft); color: var(--ok); }
.tag.failed, .tag.blocked { background: var(--danger-soft); color: var(--danger); }
.tag.attempt, .tag.log, .tag.deny, .tag.temp { background: var(--bg-soft); color: var(--muted); }

.log-export label { font-size: 0.85rem; color: var(--muted); }
.log-export select { min-width: 160px; }

.pw-grid {
  display: grid;
  gap: 0.35rem 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .pw-grid { grid-template-columns: 1fr 1fr 1fr auto; align-items: end; }
  .pw-grid .btn { margin-top: 1.55rem; }
}

@media (max-width: 1100px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .menu-btn { display: inline-flex; }
  .nav {
    position: fixed;
    left: 0;
    top: 0;
    width: min(280px, 86vw);
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    box-shadow: var(--shadow);
    border-right: 1px solid var(--line-soft);
  }
  .layout.nav-open .nav { transform: translateX(0); }
  .nav-backdrop { display: block; }
  .nav-backdrop[hidden] { display: none !important; }
  .grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr; }
}