*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #05070a;
  --bg-elevated: #0a0e14;
  --bg-card: #0d1219;
  --cyan: #00e5ff;
  --cyan-dim: #00b8d4;
  --cyan-glow: rgba(0, 229, 255, 0.28);
  --cyan-soft: rgba(0, 229, 255, 0.12);
  --text: #e8f4f8;
  --text-muted: #8ba3b0;
  --border: rgba(0, 229, 255, 0.14);
  --radius: 10px;
  --font-display: 'Orbitron', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --ok: #7dffc0;
  --warn: #ffd36a;
  --err: #ffb4b4;
  --sidebar: 210px;
}

html { font-size: 15px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  min-height: 100vh;
}

body.booting #login-screen,
body.booting #app,
body.booting #portal { display: none !important; }
body.is-login #app,
body.is-login #portal { display: none !important; }
body.is-login #login-screen { display: flex; }
body.is-app #login-screen,
body.is-app #portal { display: none !important; }
body.is-app #app { display: flex; }
body.is-portal #login-screen,
body.is-portal #app { display: none !important; }
body.is-portal #portal { display: block; }

.login-tabs {
  display: flex; gap: 0.25rem; margin: 0.85rem 0 0; padding: 0.2rem;
  background: rgba(0,0,0,.28); border-radius: 999px; border: 1px solid var(--border);
}
.login-tab {
  flex: 1; border: 0; background: transparent; color: var(--text-muted);
  font: inherit; font-size: 0.78rem; font-weight: 600; padding: 0.38rem 0.5rem;
  border-radius: 999px; cursor: pointer;
}
.login-tab.active { background: var(--cyan-soft); color: var(--cyan); }

.portal-bar {
  position: relative; z-index: 2;
  display: flex; justify-content: space-between; align-items: center;
  gap: 0.75rem; padding: 0.55rem 1rem;
  border-bottom: 1px solid var(--border); background: #080c12;
}
.portal-bar-right { display: flex; align-items: center; gap: 0.5rem; }
.portal-main { position: relative; z-index: 1; padding: 0.9rem 1rem 1.6rem; max-width: 1180px; margin: 0 auto; }

.bg-grid {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 55% at 50% 18%, black 18%, transparent 72%);
}
.bg-glow {
  position: fixed; top: -22%; left: 50%; transform: translateX(-50%);
  width: 110vw; height: 55vh; pointer-events: none; z-index: 0;
  background: radial-gradient(ellipse at center, rgba(0, 180, 220, 0.09) 0%, transparent 62%);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--cyan);
  text-transform: uppercase;
}

.muted { color: var(--text-muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.8rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem;
  padding: 0.42rem 0.85rem;
  font-family: var(--font-body); font-size: 0.8rem; font-weight: 600;
  border-radius: 8px; border: none; cursor: pointer; text-decoration: none;
  transition: 0.15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--cyan-dim));
  color: #031015;
  box-shadow: 0 0 14px var(--cyan-glow);
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-secondary {
  background: transparent; color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-soft); }
.btn-danger {
  background: rgba(255, 80, 80, 0.1); color: #ffb4b4;
  border: 1px solid rgba(255, 80, 80, 0.32);
}
.btn-sm { padding: 0.22rem 0.55rem; font-size: 0.72rem; }
.pw-wrap { position: relative; display: flex; align-items: center; }
.pw-wrap input { width: 100%; padding-right: 2.1rem; }
.pw-toggle {
  position: absolute; right: 0.25rem; top: 50%; transform: translateY(-50%);
  border: 0; background: transparent; color: var(--text-muted);
  width: 32px; height: 32px; display: grid; place-items: center;
  cursor: pointer; border-radius: 6px;
}
.pw-toggle:hover, .pw-toggle.on { color: var(--cyan); background: var(--cyan-soft); }

.login-wrap {
  position: relative; z-index: 1;
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.login-card {
  width: min(380px, 100%);
  background: linear-gradient(165deg, #0d1520 0%, #0a1018 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem 1.25rem 1.15rem;
  box-shadow: 0 16px 50px rgba(0,0,0,.5);
  text-align: center;
}
.login-logo {
  width: 64px; height: 64px; border-radius: 12px; object-fit: cover;
  filter: drop-shadow(0 0 14px rgba(0,229,255,.3));
  margin-bottom: 0.45rem;
}
.login-card h1 {
  font-family: var(--font-display); letter-spacing: .04em;
  font-size: 1.05rem; margin: 0.2rem 0 0.25rem;
}
.login-card .muted { font-size: 0.82rem; }
.login-card form { text-align: left; margin-top: 0.85rem; }
.login-card .btn { width: 100%; margin-top: 0.2rem; }

.field { display: flex; flex-direction: column; gap: 0.22rem; margin-bottom: 0.55rem; }
.field span {
  font-size: 0.68rem; letter-spacing: .04em; text-transform: uppercase; color: var(--text-muted);
}
.field input, .field select, .field textarea {
  width: 100%; background: rgba(0,0,0,.35);
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font: inherit; font-size: 0.86rem; padding: 0.42rem 0.6rem; outline: none;
}
.field textarea { min-height: 64px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: rgba(0,229,255,.55); box-shadow: 0 0 0 2px rgba(0,229,255,.1);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.45rem; }

.form-status { margin: 0.15rem 0 0.45rem; padding: 0.45rem 0.6rem; border-radius: 8px; font-size: 0.8rem; }
.form-status.ok { background: rgba(0,200,120,.12); border: 1px solid rgba(0,200,120,.35); color: var(--ok); }
.form-status.err { background: rgba(255,80,80,.1); border: 1px solid rgba(255,80,80,.35); color: var(--err); }

#app { position: relative; z-index: 1; display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar); flex-shrink: 0;
  background: #080c12;
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; padding: 0.7rem 0.6rem;
  position: sticky; top: 0; height: 100vh;
}
.brand {
  display: flex; gap: 0.5rem; align-items: center;
  text-decoration: none; color: var(--text); padding: 0.15rem 0.3rem 0.7rem;
}
.brand img { width: 30px; height: 30px; border-radius: 7px; object-fit: cover; }
.brand strong {
  display: block; font-family: var(--font-display); font-size: 0.72rem; letter-spacing: .1em;
}
.brand small { color: var(--text-muted); font-size: 0.65rem; }
#nav { display: flex; flex-direction: column; gap: 0.08rem; }
#nav a, .nav-parent {
  color: var(--text-muted); text-decoration: none; font-size: 0.82rem; font-weight: 500;
  padding: 0.38rem 0.55rem; border-radius: 7px; transition: .12s;
}
#nav a:hover, #nav a.active, .nav-parent:hover { color: var(--cyan); background: var(--cyan-soft); }
.nav-group { display: flex; flex-direction: column; }
.nav-parent {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; background: none; border: 0; cursor: pointer; font: inherit; text-align: left;
}
.nav-parent .chev { transition: transform .2s; opacity: .7; width: 12px; height: 12px; }
.nav-group.open .nav-parent .chev { transform: rotate(180deg); }
.nav-group.open .nav-parent { color: var(--cyan); }
.nav-sub {
  display: none; flex-direction: column; gap: 0.04rem;
  margin: 0.08rem 0 0.15rem 0.4rem;
  padding-left: 0.4rem;
  border-left: 1px solid var(--border);
}
.nav-group.open .nav-sub { display: flex; }
.nav-sub a { font-size: 0.76rem; padding: 0.3rem 0.5rem; }
.sidebar-foot { margin-top: auto; padding-top: 0.7rem; display: flex; flex-direction: column; gap: 0.3rem; }
.sidebar-foot .btn { width: 100%; }
.who { font-size: 0.72rem; color: var(--text-muted); margin-bottom: 0.05rem; }

.main { flex: 1; min-width: 0; padding: 0.75rem 1rem 1.5rem; }
.topbar {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 0.7rem; margin-bottom: 0.75rem;
}
.topbar h2 {
  font-family: var(--font-display); font-size: 1.12rem; letter-spacing: .03em; font-weight: 700;
}
.topbar-actions { display: flex; gap: 0.35rem; flex-wrap: wrap; }

.grid-stats { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0.5rem; }
.stat, .card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0.65rem 0.75rem 0.6rem; position: relative; overflow: hidden;
}
.stat::before, .card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent); opacity: .45;
}
.stat b { display: block; font-family: var(--font-display); font-size: 1.2rem; color: var(--cyan); margin-top: .08rem; line-height: 1.2; }
.stat span { color: var(--text-muted); font-size: 0.68rem; letter-spacing: .04em; text-transform: uppercase; }
.card h3 {
  font-family: var(--font-display); color: var(--text); text-transform: none; letter-spacing: .03em;
  font-size: 0.82rem; margin-bottom: 0.45rem; font-weight: 600;
}

.toolbar { display: flex; gap: 0.4rem; margin-bottom: 0.55rem; flex-wrap: wrap; }
.toolbar input, .toolbar select {
  background: rgba(0,0,0,.35); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); padding: 0.38rem 0.55rem; min-width: 200px; font-size: 0.84rem;
}

.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
th, td { text-align: left; padding: 0.38rem 0.55rem; border-bottom: 1px solid var(--border); white-space: nowrap; }
th {
  font-size: 0.65rem; letter-spacing: .06em; text-transform: uppercase; color: var(--text-muted);
  background: rgba(0,229,255,.04); font-weight: 600; position: sticky; top: 0;
}
tr:hover td { background: rgba(0,229,255,.035); }
td a { color: var(--cyan); text-decoration: none; }
td br + .muted, td br + .mono { font-size: 0.72rem; }
.empty { padding: 0.85rem; color: var(--text-muted); text-align: center; font-size: 0.82rem; }

.badge {
  display: inline-flex; align-items: center; padding: 0.04rem 0.4rem;
  border-radius: 999px; font-size: 0.66rem; font-weight: 600; letter-spacing: .03em;
  border: 1px solid var(--border); color: var(--text-muted); line-height: 1.4;
}
.badge.ok { color: var(--ok); border-color: rgba(0,200,120,.35); background: rgba(0,200,120,.1); }
.badge.warn { color: var(--warn); border-color: rgba(255,200,80,.35); background: rgba(255,200,80,.1); }
.badge.err { color: var(--err); border-color: rgba(255,80,80,.35); background: rgba(255,80,80,.1); }
.badge.info { color: var(--cyan); border-color: var(--border); background: var(--cyan-soft); }

.cust-map iframe {
  width: 100%; border: 0; border-radius: 8px;
  background: #0a1016; display: block;
}
.geo-suggest {
  position: absolute; left: 0; right: 0; top: 100%; z-index: 90;
  background: #0d1520; border: 1px solid var(--border); border-radius: 8px;
  max-height: 220px; overflow: auto; margin-top: 2px;
}
.geo-suggest-item {
  display: block; width: 100%; text-align: left; border: 0;
  background: transparent; color: var(--text); font: inherit;
  padding: 0.45rem 0.6rem; cursor: pointer;
}
.geo-suggest-item + .geo-suggest-item { border-top: 1px solid var(--border); }
.geo-suggest-item:hover { background: var(--cyan-soft); color: var(--cyan); }

.modal-overlay {
  position: fixed; inset: 0; z-index: 50;
  display: flex; align-items: flex-start; justify-content: center;
  padding: 3vh 0.8rem; overflow: auto;
  background: rgba(2,6,12,.78); backdrop-filter: blur(6px);
}
.modal-overlay[hidden] { display: none !important; }
.modal {
  position: relative; width: min(860px, 100%);
  background: linear-gradient(165deg, #0d1520 0%, #0a1018 100%);
  border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 18px 50px rgba(0,0,0,.55);
  padding: 1.05rem 1rem 0.9rem;
}
.modal h2 { font-family: var(--font-display); font-size: 0.98rem; letter-spacing: .03em; margin-bottom: 0.7rem; }
.modal-close {
  position: absolute; top: .35rem; right: .5rem; border: 0; background: none;
  color: var(--text-muted); font-size: 1.45rem; cursor: pointer; line-height: 1;
}
.modal-actions { display: flex; justify-content: flex-end; gap: .4rem; margin-top: .25rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 0.5rem; }
.span-2 { grid-column: 1 / -1; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
.kv { display: grid; grid-template-columns: 118px 1fr; gap: .18rem .55rem; font-size: .8rem; align-items: baseline; }
.kv b { color: var(--text-muted); font-weight: 500; }

.bar { height: 5px; background: rgba(255,255,255,.06); border-radius: 99px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--cyan-dim), var(--cyan)); }

.sys-board { margin-bottom: 0.65rem; }
.sys-services {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; margin-bottom: 0.5rem;
}
.nas-dash { margin: 0.5rem 0 0.65rem; }
.nas-dash-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.svc-status {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0.55rem 0.65rem 0.5rem; display: flex; flex-direction: column; gap: 0.28rem;
}
.svc-status-top { display: flex; justify-content: space-between; align-items: center; gap: 0.4rem; }
.svc-status h3 { margin: 0; font-size: 0.78rem; }
.svc-status .meta { font-size: 0.7rem; color: var(--text-muted); line-height: 1.3; }
.svc-status .btn { align-self: flex-start; }
.dot {
  width: 7px; height: 7px; border-radius: 50%; display: inline-block; margin-right: 0.28rem;
  box-shadow: 0 0 6px currentColor;
}
.dot.ok { background: #7dffc0; color: #7dffc0; }
.dot.warn { background: #ffd36a; color: #ffd36a; }
.dot.err { background: #ff6b6b; color: #ff6b6b; }
.gauges { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
.gauge-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0.5rem 0.55rem 0.45rem; text-align: center;
}
.gauge-card h3 { margin-bottom: 0.25rem; font-size: 0.75rem; }
.gauge { width: 86px; height: 86px; margin: 0 auto; position: relative; }
.gauge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.gauge-bg { fill: none; stroke: rgba(255,255,255,.07); stroke-width: 3.4; }
.gauge-fg { fill: none; stroke: var(--cyan); stroke-width: 3.4; stroke-linecap: round;
  transition: stroke-dasharray .45s ease, stroke .3s ease; }
.gauge.ok .gauge-fg { stroke: #00e5ff; }
.gauge.warn .gauge-fg { stroke: #ffd36a; }
.gauge.err .gauge-fg { stroke: #ff6b6b; }
.gauge-center {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; pointer-events: none;
}
.gauge-center b {
  font-family: var(--font-display); font-size: 0.88rem; color: var(--text); letter-spacing: .02em;
}
.gauge-center small { color: var(--text-muted); font-size: 0.58rem; letter-spacing: .04em; text-transform: uppercase; }
.gauge-foot { margin-top: 0.25rem; font-size: 0.7rem; color: var(--text-muted); }

.traffic-head { display: flex; justify-content: space-between; align-items: center; gap: .5rem; margin-bottom: .3rem; flex-wrap: wrap; }
.traffic-head h3 { margin: 0; }
.traffic-tabs { display: flex; gap: .25rem; flex-wrap: wrap; }
.traffic-tabs .active { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-soft); }
.traffic-svg { width: 100%; height: 140px; display: block; }
.chart-grid { stroke: rgba(0,229,255,.08); stroke-width: .6; }
.chart-tick { fill: var(--text-muted); font-size: 8px; text-anchor: end; }
.chart-xlabel { fill: var(--text-muted); font-size: 8px; text-anchor: middle; }
.chart-area-down { fill: rgba(0,229,255,.16); }
.chart-area-up { fill: rgba(122,240,255,.07); }
.chart-line-down { fill: none; stroke: #00e5ff; stroke-width: 1.4; }
.chart-line-up { fill: none; stroke: #7af0ff; stroke-width: 1.2; opacity: .85; }
.chart-legend { display: flex; gap: 0.85rem; font-size: .72rem; color: var(--text-muted); margin-top: .25rem; }
.chart-legend i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: .28rem; vertical-align: -1px; }
.lg-down { background: #00e5ff; }
.lg-up { background: #7af0ff; }
.lg-p95 { background: #ffb020; }
.chart-p95 { stroke: #ffb020; stroke-width: 1; stroke-dasharray: 4 3; opacity: .9; }
.chart-p95-lab { fill: #ffb020; font-size: 8px; text-anchor: end; }
.traffic-svc { margin-top: 0.55rem; padding-top: 0.5rem; border-top: 1px solid var(--border); }
.traffic-svc:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.traffic-svc-head { display: flex; justify-content: space-between; align-items: baseline; gap: .5rem; margin-bottom: .2rem; }
.traffic-svc-head h4 { margin: 0; font-size: .82rem; font-weight: 600; }

.svc-block { border: 1px solid var(--border); border-radius: 8px; padding: 0.55rem 0.65rem; margin-top: 0.4rem; }
.svc-block:first-child { margin-top: 0; }
.extra-ip-row {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.55rem;
  margin-top: 0.45rem;
}
.extra-ip-head { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.prefix-host-row { margin-top: 0.25rem; }
.prefix-host-row .field span.mono { color: var(--cyan); }
.check-field {
  display: flex; align-items: flex-start; gap: 0.5rem;
  margin: 0.25rem 0 0.45rem; color: var(--text);
  font-size: 0.84rem;
}
.check-field input[type="checkbox"] { margin-top: 0.2rem; accent-color: var(--cyan); }
.nas-dash-list a.badge,
.nas-dash-list button.badge,
button.badge[data-nas-snmp] {
  text-decoration: none;
  cursor: pointer;
  font: inherit;
}
.pre {
  background: #05080c; border: 1px solid var(--border); border-radius: 8px;
  padding: 0.55rem; overflow: auto; font-size: 0.74rem; color: #bdefff;
}

@media (max-width: 1100px) {
  .grid-stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 980px) {
  #app { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: relative; }
  #nav { flex-direction: row; flex-wrap: wrap; }
  .nav-group { width: 100%; }
  .split, .form-grid, .field-row { grid-template-columns: 1fr; }
  .sys-services { grid-template-columns: 1fr 1fr; }
  .gauges, .grid-stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .sys-services, .gauges, .grid-stats { grid-template-columns: 1fr; }
}