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

:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --header-bg: #020617;
  --header-text: #f8fafc;

  --up-bg: #14532d;
  --up-text: #4ade80;
  --up-dot: #22c55e;

  --down-bg: #7f1d1d;
  --down-text: #fca5a5;
  --down-dot: #ef4444;

  --warn-bg: #78350f;
  --warn-text: #fcd34d;
  --warn-dot: #f59e0b;

  --slow-bg: #7c2d12;
  --slow-text: #fb923c;
  --slow-dot: #f97316;

  --pending-bg: #1e293b;
  --pending-text: #94a3b8;
  --pending-dot: #64748b;

  --bar-track: #334155;
  --bar-ok: #22c55e;
  --bar-warn: #f59e0b;
  --bar-crit: #ef4444;

  --link: #60a5fa;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 15px;
}

/* ── Login page ──────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--header-bg);
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  width: 360px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.login-card h1 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.login-card .subtitle {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 2rem;
}

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 0.35rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.form-group input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  outline: none;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.15s;
}
.form-group input:focus { border-color: #3b82f6; }

.btn-primary {
  width: 100%;
  padding: 0.65rem;
  background: #3b82f6;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: background 0.15s;
}
.btn-primary:hover { background: #2563eb; }

.error-msg {
  background: var(--down-bg);
  color: var(--down-text);
  border: 1px solid #991b1b;
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* ── Dashboard layout ────────────────────────────────────────────────────── */
.header {
  background: var(--header-bg);
  color: var(--header-text);
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.header-title { font-weight: 700; font-size: 1.1rem; letter-spacing: -0.01em; }
.header-right { display: flex; align-items: center; gap: 1.25rem; }
.header-right .muted { color: #94a3b8; font-size: 0.8rem; }

.btn-logout {
  background: rgba(255,255,255,0.08);
  color: #cbd5e1;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-logout:hover { background: rgba(255,255,255,0.15); color: #fff; }

.main { padding: 1.5rem; max-width: 1200px; margin: 0 auto; }

/* ── Status banner ───────────────────────────────────────────────────────── */
.status-banner {
  border-radius: 10px;
  padding: 0.75rem 1.25rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.status-banner.all-ok { background: var(--up-bg); color: var(--up-text); }
.status-banner.has-issues { background: var(--down-bg); color: var(--down-text); }
.status-banner.has-warnings { background: var(--warn-bg); color: var(--warn-text); }
.status-banner.pending { background: var(--pending-bg); color: var(--pending-text); }

/* ── Section headings ────────────────────────────────────────────────────── */
.section-heading {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

/* ── Site cards grid ─────────────────────────────────────────────────────── */
.sites-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.site-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  transition: box-shadow 0.15s;
}
.site-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.07); }
.site-card.state-down { border-color: #991b1b; }
.site-card.state-warn { border-color: #92400e; }
.site-card.state-slow { border-color: #9a3412; }

.card-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 0.6rem; }
.card-name { font-weight: 700; font-size: 1rem; }
.card-url { font-size: 0.78rem; color: var(--muted); word-break: break-all; margin-bottom: 0.85rem; }
.card-url a { color: var(--link); text-decoration: none; }
.card-url a:hover { text-decoration: underline; }

.state-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.state-badge::before {
  content: '';
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.state-badge.up    { background: var(--up-bg);      color: var(--up-text);      } .state-badge.up::before    { background: var(--up-dot); }
.state-badge.down  { background: var(--down-bg);    color: var(--down-text);    } .state-badge.down::before  { background: var(--down-dot); }
.state-badge.warn  { background: var(--warn-bg);    color: var(--warn-text);    } .state-badge.warn::before  { background: var(--warn-dot); }
.state-badge.slow  { background: var(--slow-bg);    color: var(--slow-text);    } .state-badge.slow::before  { background: var(--slow-dot); }
.state-badge.pending { background: var(--pending-bg); color: var(--pending-text); } .state-badge.pending::before { background: var(--pending-dot); }

.card-meta { display: flex; gap: 1rem; font-size: 0.82rem; color: var(--muted); }
.card-meta strong { color: var(--text); }
.card-error { margin-top: 0.6rem; font-size: 0.78rem; color: var(--down-text); background: var(--down-bg); border-radius: 5px; padding: 0.3rem 0.5rem; }

/* ── RDP Server card ─────────────────────────────────────────────────────── */
#serverCards { display: flex; flex-direction: column; gap: 1rem; }

.server-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
}

.server-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.server-name { font-weight: 700; font-size: 1.05rem; }
.server-hostname { font-size: 0.78rem; color: var(--muted); margin-top: 0.1rem; }

.server-metrics { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1.25rem; }

.server-row-header,
.server-row {
  display: grid;
  grid-template-columns: 60px 1fr 1fr 180px;
  gap: 1rem;
  align-items: center;
}
.server-row-header {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.25rem;
}
.server-rows { display: flex; flex-direction: column; gap: 0.6rem; }
.server-row-label { font-weight: 600; font-size: 0.875rem; }
.server-row-metric .bar-track { margin-bottom: 0.2rem; }
.row-metric-text { font-size: 0.78rem; color: var(--muted); }
.server-row-sessions { font-size: 0.82rem; }
.server-row-error { font-size: 0.82rem; color: var(--muted); }
.sess-active { color: var(--up-dot); font-weight: 700; }
.sess-disc   { color: var(--warn-dot); font-weight: 700; }

.metric { }
.metric-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 0.4rem; }
.metric-value { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.5rem; }
.metric-value small { font-size: 0.75rem; font-weight: 400; color: var(--muted); }

.bar-track { height: 8px; background: var(--bar-track); border-radius: 4px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 4px; transition: width 0.4s ease; }
.bar-fill.ok   { background: var(--bar-ok); }
.bar-fill.warn { background: var(--bar-warn); }
.bar-fill.crit { background: var(--bar-crit); }

.sessions-grid { display: flex; gap: 1.5rem; align-items: center; }
.session-block { text-align: center; }
.session-count { font-size: 2rem; font-weight: 800; line-height: 1; }
.session-count.active { color: var(--up-dot); }
.session-count.disc   { color: var(--warn-dot); }
.session-label { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.2rem; }

.server-error { color: var(--down-text); font-size: 0.85rem; background: var(--down-bg); border-radius: 6px; padding: 0.5rem 0.75rem; margin-top: 0.5rem; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
  padding: 2rem 1rem;
}

/* ── Spinner (initial load) ──────────────────────────────────────────────── */
.spinner {
  width: 28px; height: 28px;
  border: 3px solid var(--border);
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 3rem auto;
}
@keyframes spin { to { transform: rotate(360deg); } }