/* ── Variables ── */
:root {
  --bg:       #0a0e1a;
  --surface:  #111827;
  --surface2: #1a2236;
  --border:   #1e2d47;
  --accent:   #00d4ff;
  --green:    #39ff14;
  --red:      #ef4444;
  --warn:     #f59e0b;
  --success:  #10b981;
  --text:     #e2e8f0;
  --muted:    #64748b;
  --sidebar:  220px;
  --topbar:   56px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; }
input, select { font-family: inherit; }

/* ── Layout ── */
.layout { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform .25s;
}

.sidebar-logo {
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border);
}

.brand-tag {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 4px;
  color: var(--accent);
  text-transform: uppercase;
}

.brand-name {
  font-size: 17px;
  font-weight: 600;
  margin-top: 3px;
}

.sidebar-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-size: 11px;
  color: var(--success);
  font-family: 'Space Mono', monospace;
}

.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: blink 2s infinite;
}

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }

.nav-links { flex: 1; padding: 12px 0; overflow-y: auto; }

.nav-section {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
  padding: 10px 20px 4px;
  margin-top: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  font-size: 13px;
  color: var(--muted);
  border-left: 2px solid transparent;
  transition: all .15s;
}

.nav-item:hover { color: var(--text); background: rgba(255,255,255,.03); }

.nav-item.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(0,212,255,.06);
}

.ni { font-size: 14px; }

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}

.user-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 30px; height: 30px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--accent), var(--green));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  color: var(--bg);
  flex-shrink: 0;
}

.user-name { font-size: 12px; font-weight: 500; }
.user-role { font-size: 10px; color: var(--muted); font-family: 'Space Mono', monospace; }

.btn-logout {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  width: 26px; height: 26px;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
  flex-shrink: 0;
}
.btn-logout:hover { border-color: var(--red); color: var(--red); }

/* ── Main wrap ── */
.main-wrap {
  margin-left: var(--sidebar);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Topbar ── */
.topbar {
  height: var(--topbar);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 14px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.burger {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 4px 8px;
  border-radius: 3px;
  font-size: 14px;
}

.page-title { font-size: 17px; font-weight: 600; }

.topbar-right { margin-left: auto; }

.clock {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--muted);
}

/* ── Content ── */
.content { padding: 26px 28px; }

/* ── Alert banner ── */
.alert-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  border-radius: 4px;
  padding: 12px 16px;
  font-size: 13px;
  margin-bottom: 22px;
}
.alert-banner .ic { color: var(--red); font-size: 16px; }

/* ── Stat cards ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--card-color, var(--accent));
  opacity: .6;
}

.stat-label {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.stat-value {
  font-family: 'Space Mono', monospace;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-unit { font-size: 13px; opacity: .55; }

.stat-sub {
  font-size: 11px;
  color: var(--muted);
}

.up   { color: var(--red); }
.down { color: var(--success); }
.ok   { color: var(--success); }

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.card-body { padding: 18px; }

.badge {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 1px;
  padding: 3px 9px;
  border-radius: 20px;
  text-transform: uppercase;
}

.badge-ok     { background: rgba(16,185,129,.15); color: var(--success); }
.badge-warn   { background: rgba(245,158,11,.15);  color: var(--warn); }
.badge-danger { background: rgba(239,68,68,.15);   color: var(--red); }

/* ── Chart grid ── */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.chart-full { margin-bottom: 14px; }

/* ── Table card ── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,.2);
}

.fi {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 3px;
  outline: none;
  width: 180px;
}
.fi:focus { border-color: var(--accent); }
.fi-sm { width: 100px; }

.btn {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 7px 14px;
  border-radius: 3px;
  border: 1px solid;
  transition: all .15s;
}

.btn-primary {
  background: rgba(0,212,255,.1);
  border-color: rgba(0,212,255,.35);
  color: var(--accent);
}
.btn-primary:hover { background: rgba(0,212,255,.2); }

.btn-ghost {
  background: rgba(255,255,255,.04);
  border-color: var(--border);
  color: var(--muted);
}
.btn-ghost:hover { color: var(--text); }

.btn-green {
  background: rgba(57,255,20,.08);
  border-color: rgba(57,255,20,.3);
  color: var(--green);
}
.btn-green:hover { background: rgba(57,255,20,.15); }

table { width: 100%; border-collapse: collapse; }

thead tr { background: rgba(0,0,0,.3); }

th {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  padding: 10px 18px;
  text-align: left;
}

th a {
  color: inherit;
  text-decoration: none;
}
th a:hover { color: var(--accent); }

td {
  padding: 9px 18px;
  font-size: 13px;
  border-bottom: 1px solid rgba(30,45,71,.5);
  font-family: 'Space Mono', monospace;
}

tr:hover td { background: rgba(255,255,255,.018); }

.td-ok     { color: var(--success); }
.td-warn   { color: var(--warn); }
.td-danger { color: var(--red); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  padding: 2px 9px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.pill-ok     { background: rgba(16,185,129,.15); color: var(--success); }
.pill-warn   { background: rgba(245,158,11,.15);  color: var(--warn); }
.pill-danger { background: rgba(239,68,68,.15);   color: var(--red); }

/* ── Pagination ── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 18px;
  border-top: 1px solid var(--border);
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--muted);
}
.page-btns { display: flex; gap: 4px; }
.pb {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  padding: 4px 10px;
  border-radius: 3px;
  cursor: pointer;
  transition: all .15s;
}
.pb.cur, .pb:hover { border-color: var(--accent); color: var(--accent); }

/* ── Summary grid ── */
.sum-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

/* ── Alerts list ── */
.alerts-list { display: flex; flex-direction: column; gap: 10px; }

.alert-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.alert-item.danger { border-left: 3px solid var(--red); }
.alert-item.warn   { border-left: 3px solid var(--warn); }
.alert-item.ok     { border-left: 3px solid var(--success); }

.alert-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 5px; flex-shrink: 0; }

.alert-body { flex: 1; }
.alert-title { font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.alert-desc  { font-size: 12px; color: var(--muted); }
.alert-time  { font-family: 'Space Mono', monospace; font-size: 10px; color: var(--muted); white-space: nowrap; }

/* ── Export / settings ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.settings-section-title {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 0;
  border-bottom: 1px solid rgba(30,45,71,.5);
}

.sl { font-size: 13px; }
.sh { font-size: 11px; color: var(--muted); margin-top: 2px; }

.si {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 3px;
  width: 90px;
  text-align: center;
  outline: none;
}
.si:focus { border-color: var(--accent); }

/* Export code block */
.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 14px 16px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--green);
  overflow-x: auto;
  white-space: pre;
  line-height: 1.7;
  margin: 12px 0;
}

/* ── LOGIN PAGE ── */
body.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
  position: relative;
}

body.login-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 40% at 20% 50%, rgba(0,212,255,.07) 0%, transparent 70%),
    radial-gradient(ellipse 40% 55% at 80% 30%, rgba(57,255,20,.05) 0%, transparent 70%);
  pointer-events: none;
}

.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 44px 40px;
  width: 100%;
  max-width: 390px;
  position: relative;
  z-index: 1;
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.login-brand { font-family: 'Space Mono', monospace; font-size: 10px; letter-spacing: 4px; color: var(--accent); text-transform: uppercase; margin-bottom: 6px; }
.login-title { font-size: 26px; font-weight: 600; margin-bottom: 4px; }
.login-sub   { font-size: 13px; color: var(--muted); margin-bottom: 32px; }

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 7px;
}

.form-group input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 11px 14px;
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  color: var(--text);
  outline: none;
  transition: border-color .2s;
}
.form-group input:focus { border-color: var(--accent); }

.btn-login {
  width: 100%;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 3px;
  padding: 13px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 700;
  margin-top: 6px;
  transition: opacity .2s;
}
.btn-login:hover { opacity: .9; }

.login-err {
  color: var(--red);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  margin-top: 12px;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .charts-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .sum-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-wrap { margin-left: 0; }
  .burger { display: flex; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .content { padding: 18px 16px; }
  .sum-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .login-card { padding: 32px 24px; }
}