/* ── Reset & Base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d1117;
  --surface:   #161b22;
  --border:    #30363d;
  --text:      #c9d1d9;
  --muted:     #8b949e;
  --blue:      #58a6ff;
  --green:     #3fb950;
  --red:       #f85149;
  --orange:    #e3b341;
  --purple:    #bc8cff;
  --radius:    6px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ── Login Page ────────────────────────────────────────────────────────── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-wrap {
  width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2.5rem 2rem;
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}
.login-logo svg { display: block; margin: 0 auto .75rem; }
.login-logo h1 { font-size: 1.4rem; color: var(--blue); margin-bottom: .25rem; }
.login-logo p  { color: var(--muted); font-size: .85rem; }

/* ── Top Nav ────────────────────────────────────────────────────────────── */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .5rem 1.5rem;
  height: 52px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
  color: var(--blue);
  white-space: nowrap;
}

.nav-tabs {
  display: flex;
  gap: .25rem;
  flex: 1;
  margin: 0 1rem;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: .35rem .8rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: .9rem;
  transition: color .15s, background .15s;
}
.tab-btn:hover { color: var(--text); background: rgba(255,255,255,.06); }
.tab-btn.active { color: var(--text); background: rgba(88,166,255,.15); }

.nav-right {
  display: flex;
  align-items: center;
  gap: .75rem;
  white-space: nowrap;
}
.nav-user { color: var(--muted); font-size: .85rem; }

/* ── Tab Panes ──────────────────────────────────────────────────────────── */
.tab-pane { padding: 1.5rem; }
.tab-pane.hidden { display: none; }

/* ── Page Header ────────────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}
.page-header h2 { font-size: 1.1rem; }

/* ── Status bar ─────────────────────────────────────────────────────────── */
.status-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--muted);
  font-size: .8rem;
}

.pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; }
  50%      { opacity: .3; }
}

/* ── Stat Grid ──────────────────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
}
.stat-val   { font-size: 2rem; font-weight: 700; }
.stat-label { font-size: .8rem; color: var(--muted); margin-top: .2rem; }
.green { color: var(--green); }
.red   { color: var(--red); }
.blue  { color: var(--blue); }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.25rem;
}
.card-header {
  padding: .75rem 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
}

/* ── Avatar list (overview) ─────────────────────────────────────────────── */
.avatar-list { padding: .5rem 0; }

.avatar-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .6rem 1rem;
  border-bottom: 1px solid rgba(48,54,61,.5);
}
.avatar-row:last-child { border-bottom: none; }

.status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot.online  { background: var(--green); box-shadow: 0 0 6px var(--green); }
.status-dot.offline { background: var(--muted); }
.status-dot.unknown { background: var(--border); }

.avatar-name  { flex: 1; font-weight: 500; }
.avatar-meta  { font-size: .8rem; color: var(--muted); }
.avatar-badge {
  font-size: .75rem;
  padding: .1rem .5rem;
  border-radius: 20px;
  font-weight: 600;
}
.badge-online  { background: rgba(63,185,80,.15); color: var(--green); }
.badge-offline { background: rgba(139,148,158,.1); color: var(--muted); }

/* ── Tables ─────────────────────────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
}
.data-table th,
.data-table td {
  padding: .6rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.data-table th {
  font-size: .8rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  background: rgba(0,0,0,.2);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,.02); }

/* ── Forms & Inputs ─────────────────────────────────────────────────────── */
.field { margin-bottom: 1rem; }
.field label { display: block; margin-bottom: .35rem; font-size: .85rem; color: var(--muted); }

input[type="text"],
input[type="password"],
input[type="date"],
select,
textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: .45rem .75rem;
  border-radius: var(--radius);
  font-size: .9rem;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--blue);
}
textarea { resize: vertical; }
.monospace { font-family: 'Courier New', monospace; font-size: .85rem; }

.select-input, .date-input {
  width: auto;
  padding: .35rem .6rem;
  font-size: .85rem;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: .4rem .85rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: .875rem;
  text-decoration: none;
  transition: background .15s, border-color .15s;
}
.btn:hover { background: rgba(255,255,255,.06); border-color: #6e7681; }
.btn-primary { background: #238636; border-color: #2ea043; color: #fff; }
.btn-primary:hover { background: #2ea043; }
.btn-danger  { background: rgba(248,81,73,.15); border-color: var(--red); color: var(--red); }
.btn-danger:hover { background: rgba(248,81,73,.3); }
.btn-full { width: 100%; justify-content: center; padding: .6rem; }
.btn-sm { font-size: .8rem; padding: .25rem .6rem; }

/* ── Alerts ─────────────────────────────────────────────────────────────── */
.alert {
  padding: .65rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: .9rem;
}
.alert-error   { background: rgba(248,81,73,.1); border: 1px solid rgba(248,81,73,.4); color: var(--red); }
.alert-success { background: rgba(63,185,80,.1); border: 1px solid rgba(63,185,80,.4); color: var(--green); }
.hidden { display: none !important; }

/* ── Filter row ─────────────────────────────────────────────────────────── */
.filter-row {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  align-items: center;
}

/* ── Pagination ─────────────────────────────────────────────────────────── */
.pagination {
  display: flex;
  gap: .35rem;
  padding: .75rem 1rem;
  justify-content: flex-end;
}
.page-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: .25rem .6rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: .8rem;
}
.page-btn.active { background: var(--blue); color: #000; border-color: var(--blue); }
.page-btn:disabled { opacity: .4; cursor: default; }

/* ── Trends ─────────────────────────────────────────────────────────────── */
.trend-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}
@media (max-width: 800px) { .trend-grid { grid-template-columns: 1fr; } }

.hours-chart {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 100px;
  padding: .75rem 1rem;
}
.hour-bar {
  flex: 1;
  background: var(--blue);
  border-radius: 2px 2px 0 0;
  opacity: .7;
  transition: opacity .15s;
  min-height: 2px;
  cursor: default;
}
.hour-bar:hover { opacity: 1; }

/* ── Modal ──────────────────────────────────────────────────────────────── */
.modal { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.6); }
.modal-box {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.75rem;
  width: 460px;
  max-width: 95vw;
}
.modal-box h3 { margin-bottom: 1.25rem; }
.modal-actions { display: flex; gap: .5rem; justify-content: flex-end; margin-top: 1rem; }

/* ── Loading / empty ────────────────────────────────────────────────────── */
.loading, .empty { color: var(--muted); padding: 1.5rem; text-align: center; font-size: .9rem; }

/* ── Event badges ───────────────────────────────────────────────────────── */
.ev-online  { color: var(--green); font-weight: 600; }
.ev-offline { color: var(--muted); }