:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #222535;
  --border: #2a2d3e;
  --accent: #6c63ff;
  --accent2: #4ecdc4;
  --green: #22c55e;
  --red: #ef4444;
  --orange: #f97316;
  --yellow: #eab308;
  --text: #e2e8f0;
  --muted: #64748b;
  --sidebar-w: 220px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 14px;
  display: flex;
  min-height: 100vh;
}

/* ── LOGIN ─────────────────────────────────────────────────────────────────── */

body.login-body {
  align-items: center;
  justify-content: center;
}
.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 380px;
}
.login-logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}
.login-logo span { color: var(--text); }
.login-sub {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 32px;
}
.login-error {
  background: rgba(239, 68, 68, .12);
  border: 1px solid rgba(239, 68, 68, .3);
  color: var(--red);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 20px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.form-group input {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color .2s;
}
.form-group input:focus { border-color: var(--accent); }
.btn-primary {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: opacity .2s;
}
.btn-primary:hover { opacity: .85; }

/* ── SIDEBAR ─────────────────────────────────────────────────────────────── */

aside {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 10;
}
.sidebar-logo {
  padding: 20px 18px 16px;
  border-bottom: 1px solid var(--border);
}
.brand { font-size: 16px; font-weight: 700; color: var(--accent); }
.brand span { color: var(--text); }
.domain { font-size: 11px; color: var(--muted); margin-top: 2px; }

nav {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
}
.nav-section {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--muted);
  padding: 14px 8px 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--muted);
  transition: all .15s;
  margin-bottom: 2px;
  font-size: 13px;
  user-select: none;
}
.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active {
  background: rgba(108, 99, 255, .15);
  color: var(--accent);
  font-weight: 600;
}
.nav-item .icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.user-info { display: flex; align-items: center; gap: 10px; }
.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.user-name { font-size: 13px; font-weight: 600; }
.user-role { font-size: 11px; color: var(--muted); }
.logout-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 18px;
  padding: 4px;
  border-radius: 6px;
  transition: color .15s;
}
.logout-link:hover { color: var(--red); }

/* ── MAIN ─────────────────────────────────────────────────────────────────── */

main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 5;
  gap: 16px;
}
.page-title { font-size: 18px; font-weight: 700; }
.time-filters { display: flex; gap: 6px; align-items: center; position: relative; }
.tf-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: all .15s;
}
.tf-btn:hover { color: var(--text); border-color: var(--accent); }
.tf-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.tf-separator { color: var(--border); font-size: 18px; }
.tf-custom {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}
.tf-custom:hover { border-color: var(--accent); color: var(--text); }
.date-picker-popup {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  z-index: 100;
  min-width: 280px;
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
}
.dp-row { display: flex; gap: 12px; }
.dp-row label { font-size: 11px; color: var(--muted); display: block; margin-bottom: 4px; }
.dp-row input {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  color-scheme: dark;
}
.dp-row input:focus { border-color: var(--accent); }

.content { padding: 24px 28px; flex: 1; }

/* ── PAGES ─────────────────────────────────────────────────────────────────── */

.page { display: none; }
.page.active { display: block; }
.page.loading { opacity: .6; pointer-events: none; }

/* ── KPI CARDS ─────────────────────────────────────────────────────────────── */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.kpi-label {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 8px;
}
.kpi-value {
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
}
.kpi-unit { font-size: 16px; color: var(--muted); }
.kpi-change {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.kpi-change.up { color: var(--green); }
.kpi-change.down { color: var(--red); }
.kpi-change .arrow { font-size: 14px; }

/* ── CHARTS ─────────────────────────────────────────────────────────────────── */

.charts-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.chart-title { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.chart-sub { font-size: 12px; color: var(--muted); margin-bottom: 16px; }
.chart-wrap { position: relative; }
.chart-wrap.h300 { height: 300px; }
.chart-wrap.h220 { height: 220px; }
.chart-wrap.h200 { height: 200px; }

/* ── TABLE ─────────────────────────────────────────────────────────────────── */

.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
}
.table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--muted);
  padding: 0 12px 10px 0;
  border-bottom: 1px solid var(--border);
}
td {
  padding: 12px 12px 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }

/* ── BADGES ─────────────────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge.new { background: rgba(108,99,255,.2); color: var(--accent); }
.badge.ret { background: rgba(78,205,196,.2); color: var(--accent2); }
.badge.completed { background: rgba(34,197,94,.2); color: var(--green); }
.badge.processing { background: rgba(234,179,8,.2); color: var(--yellow); }
.badge.cancelled { background: rgba(239,68,68,.2); color: var(--red); }
.badge.refunded { background: rgba(249,115,22,.2); color: var(--orange); }
.badge.admin { background: rgba(108,99,255,.2); color: var(--accent); }
.badge.viewer { background: rgba(78,205,196,.2); color: var(--accent2); }

/* ── VELOCITY ─────────────────────────────────────────────────────────────── */

.seg-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.seg-dead   { background: rgba(239,68,68,.15);  color: #f87171; }
.seg-slow   { background: rgba(249,115,22,.15); color: #fb923c; }
.seg-risk   { background: rgba(234,179,8,.15);  color: #fbbf24; }
.seg-healthy{ background: rgba(34,197,94,.15);  color: #4ade80; }
.seg-fast   { background: rgba(99,102,241,.15); color: #818cf8; }

.vel-bar {
  width: 80px; height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.vel-fill { height: 100%; border-radius: 3px; }
.vel-fill.dead    { background: var(--red); }
.vel-fill.slow    { background: var(--orange); }
.vel-fill.risk    { background: var(--yellow); }
.vel-fill.healthy { background: var(--green); }
.vel-fill.fast    { background: var(--accent); }

/* ── HEATMAP ─────────────────────────────────────────────────────────────── */

.heatmap {
  display: grid;
  grid-template-columns: 52px repeat(24, 1fr);
  gap: 3px;
  font-size: 10px;
  margin-bottom: 3px;
}
.hm-label {
  color: var(--muted);
  display: flex;
  align-items: center;
  font-size: 11px;
}
.hm-cell {
  height: 22px;
  border-radius: 3px;
  background: var(--surface2);
  transition: transform .1s;
  cursor: default;
}
.hm-cell:hover { transform: scale(1.1); }
.hm-hour-labels {
  display: grid;
  grid-template-columns: 52px repeat(24, 1fr);
  gap: 3px;
  color: var(--muted);
  font-size: 10px;
  margin-bottom: 6px;
}

/* ── DONUT LEGEND ─────────────────────────────────────────────────────────── */

.donut-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}
.donut-leg-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}
.donut-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* ── USERS ─────────────────────────────────────────────────────────────────── */

.user-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}
.form-row input, .form-row select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  color: var(--text);
  font-size: 13px;
  outline: none;
}
.form-row input:focus, .form-row select:focus { border-color: var(--accent); }
.btn-add {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.btn-add:hover { opacity: .85; }
.btn-del {
  background: rgba(239,68,68,.15);
  color: var(--red);
  border: 1px solid rgba(239,68,68,.3);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 12px;
  cursor: pointer;
}
.btn-del:hover { background: rgba(239,68,68,.3); }
.btn-del:disabled { opacity: .4; cursor: default; }

/* ── FILTERS BAR ─────────────────────────────────────────────────────────── */

.filters-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  align-items: center;
  flex-wrap: wrap;
}
.filter-select {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13px;
  outline: none;
  cursor: pointer;
}
.filter-select:focus { border-color: var(--accent); }

/* ── ICON BUTTON ─────────────────────────────────────────────────────────── */

.icon-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 16px;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: color .15s;
  line-height: 1;
}
.icon-btn:hover { color: var(--text); }

/* ── MODAL ───────────────────────────────────────────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(2px);
}
.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  width: 380px;
}
.modal-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}
.modal-error {
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.3);
  color: var(--red);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13px;
  margin-top: 4px;
}
.modal-ok {
  background: rgba(34,197,94,.12);
  border: 1px solid rgba(34,197,94,.3);
  color: var(--green);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13px;
  margin-top: 4px;
}
.btn-cancel {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 14px;
  cursor: pointer;
  transition: color .15s;
}
.btn-cancel:hover { color: var(--text); }

/* ── SCROLLBAR ─────────────────────────────────────────────────────────────── */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }