/* =============================================================
   Multi-Engine Observability Platform - premium dark theme
   Fonts: Inter + JetBrains Mono (loaded from Google Fonts)
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Surfaces */
  --bg-0:           #05070d;
  --bg-1:           #0a0f1a;
  --bg-2:           #0e1623;
  --bg-3:           #121c2e;
  --surface-card:   #111a2b;
  --surface-panel:  #0d1523;
  --surface-raised: #16223a;
  --border-subtle:  rgba(148, 163, 184, 0.12);
  --border-strong:  rgba(148, 163, 184, 0.22);

  /* Text */
  --text-primary:   #e6edf5;
  --text-secondary: #aab7c7;
  --text-muted:     #6f7d91;

  /* Accents (teal/blue system) */
  --accent-teal:    #14b8a6;
  --accent-teal-2:  #2dd4bf;
  --accent-blue:    #3b82f6;
  --accent-blue-2:  #60a5fa;
  --accent-glow:    rgba(45, 212, 191, 0.35);

  /* Severity */
  --sev-critical:   #f87171;
  --sev-high:       #fb923c;
  --sev-warning:    #fbbf24;
  --sev-info:       #60a5fa;
  --sev-ok:         #34d399;

  /* Misc */
  --radius-sm:      6px;
  --radius-md:      10px;
  --radius-lg:      14px;
  --shadow-card:    0 1px 0 rgba(255,255,255,0.04) inset, 0 10px 30px rgba(0,0,0,0.45);
  --font-sans:      'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:      'JetBrains Mono', ui-monospace, 'Fira Code', Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--accent-teal-2); text-decoration: none; }
a:hover { color: var(--accent-blue-2); }

.mono { font-family: var(--font-mono); }

/* =============================================================
   LOGIN (split-screen premium)
   ============================================================= */
.auth-shell {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  min-height: 100vh;
  background: radial-gradient(1200px 700px at -10% -20%, rgba(45, 212, 191, 0.08), transparent 60%),
              radial-gradient(900px 600px at 110% 110%, rgba(59, 130, 246, 0.10), transparent 60%),
              var(--bg-0);
}
@media (max-width: 980px) { .auth-shell { grid-template-columns: 1fr; } .auth-hero { display: none; } }

.auth-hero {
  position: relative;
  padding: 64px 60px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(160deg, rgba(20, 184, 166, 0.12), rgba(59, 130, 246, 0.08) 55%, transparent 75%);
  border-right: 1px solid var(--border-subtle);
  overflow: hidden;
}
.auth-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 320px at 15% 20%, rgba(45, 212, 191, 0.18), transparent 60%),
    radial-gradient(500px 280px at 85% 80%, rgba(59, 130, 246, 0.20), transparent 60%);
  pointer-events: none;
}
.auth-hero > * { position: relative; z-index: 1; }

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.brand-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-teal) 0%, var(--accent-blue) 100%);
  box-shadow: 0 0 24px var(--accent-glow);
  display: flex; align-items: center; justify-content: center;
  color: #05070d; font-weight: 900; font-size: 18px;
}

.hero-headline {
  margin-top: 56px;
  font-size: 42px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.hero-headline .accent { color: var(--accent-teal-2); }

.hero-sub {
  margin-top: 18px;
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 520px;
}

.feature-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  max-width: 620px;
}
.feature-card {
  background: rgba(16, 24, 40, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  backdrop-filter: blur(8px);
}
.feature-card .feature-title {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--text-primary);
  display: flex; align-items: center; gap: 8px;
}
.feature-card .feature-title .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-teal-2);
  box-shadow: 0 0 10px var(--accent-teal-2);
}
.feature-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
}

.hero-footer {
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-mono);
}

.auth-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--surface-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 34px 30px 34px;
  box-shadow: var(--shadow-card);
}
.auth-card h2 { margin: 0 0 4px 0; font-size: 22px; font-weight: 700; }
.auth-card .auth-sub { color: var(--text-secondary); margin-bottom: 26px; }

.field { display: block; margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.field input {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 12px 14px;
  font-size: 14px;
  font-family: var(--font-sans);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus {
  outline: none;
  border-color: var(--accent-teal);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-teal) 0%, var(--accent-blue) 100%);
  color: #05070d;
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 18px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.05s ease, box-shadow 0.15s ease;
}
.btn:hover { box-shadow: 0 0 24px rgba(45, 212, 191, 0.35); }
.btn:active { transform: translateY(1px); }
.btn.block { width: 100%; }

.btn.ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}
.btn.ghost:hover { border-color: var(--accent-teal); color: var(--accent-teal-2); }

.inline-msg { font-size: 12px; color: var(--text-muted); margin-top: 8px; }
.inline-msg.error { color: var(--sev-critical); }

/* =============================================================
   SHELL (sticky topbar + body)
   ============================================================= */
.shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: rgba(10, 15, 26, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}
.topbar .brand { font-size: 15px; }
.topbar .sep {
  width: 1px; height: 22px; background: var(--border-subtle); margin: 0 6px;
}
.topbar .selector {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
}
.topbar .selector select {
  background: transparent; border: none; color: var(--text-primary);
  font-family: var(--font-sans); font-size: 13px; outline: none;
  padding-right: 8px;
}
.topbar .selector select option { background: var(--bg-2); color: var(--text-primary); }

.topbar .spacer { flex: 1; }

.topbar .chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.3px; text-transform: uppercase;
  background: rgba(45, 212, 191, 0.12);
  color: var(--accent-teal-2);
  border: 1px solid rgba(45, 212, 191, 0.25);
}

.shell-body {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - 58px);
}
.sidenav {
  background: var(--bg-1);
  border-right: 1px solid var(--border-subtle);
  padding: 16px 10px;
}
.sidenav-group {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 12px 12px 6px 12px;
}
.sidenav a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius-sm);
  color: var(--text-secondary); font-weight: 500; font-size: 13.5px;
  transition: background 0.08s, color 0.08s;
}
.sidenav a:hover { background: rgba(255,255,255,0.04); color: var(--text-primary); }
.sidenav a.active {
  background: linear-gradient(90deg, rgba(45, 212, 191, 0.10), transparent);
  color: var(--accent-teal-2);
  border-left: 2px solid var(--accent-teal);
  padding-left: 10px;
}

.main { padding: 26px 28px; }
.page-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.2px;
  margin: 0 0 6px 0;
}
.page-sub { color: var(--text-secondary); margin: 0 0 22px 0; }

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}
.card .card-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 700;
  color: var(--text-muted);
}
.card .card-value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-top: 6px;
}
.card .card-foot {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* Severity accents */
.card.sev-critical { border-left: 3px solid var(--sev-critical); }
.card.sev-high     { border-left: 3px solid var(--sev-high); }
.card.sev-warning  { border-left: 3px solid var(--sev-warning); }
.card.sev-info     { border-left: 3px solid var(--sev-info); }
.card.sev-ok       { border-left: 3px solid var(--sev-ok); }

/* Panels */
.panel {
  background: var(--surface-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  margin-bottom: 22px;
}
.panel h3 {
  margin: 0 0 14px 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.panel .panel-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px;
}
.awr-title {
  font-size: 15px;
  font-weight: 800;                 /* AWR report title in bold */
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* Tables */
table.grid {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.grid th, table.grid td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}
table.grid th {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text-muted);
  background: rgba(255,255,255,0.02);
}
table.grid td.num, table.grid th.num { text-align: right; font-family: var(--font-mono); }

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}
.badge.critical { background: rgba(248,113,113,0.15); color: var(--sev-critical); border: 1px solid rgba(248,113,113,0.35); }
.badge.high     { background: rgba(251,146,60,0.15);  color: var(--sev-high);     border: 1px solid rgba(251,146,60,0.35); }
.badge.warning  { background: rgba(251,191,36,0.15);  color: var(--sev-warning);  border: 1px solid rgba(251,191,36,0.35); }
.badge.info     { background: rgba(96,165,250,0.15);  color: var(--sev-info);     border: 1px solid rgba(96,165,250,0.35); }
.badge.ok       { background: rgba(52,211,153,0.15);  color: var(--sev-ok);       border: 1px solid rgba(52,211,153,0.35); }

/* Donut chart */
.donut {
  position: relative;
  width: 180px; height: 180px;
  display: flex; align-items: center; justify-content: center;
}
.donut svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.donut .donut-center {
  position: absolute;
  text-align: center;
}
.donut .donut-center .big {
  font-size: 28px;
  font-weight: 800;
  font-family: var(--font-sans);
  letter-spacing: -0.5px;
}
.donut .donut-center .lbl {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

/* Legend */
.legend { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 10px; }
.legend .item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-secondary); }
.legend .swatch { width: 10px; height: 10px; border-radius: 2px; }

/* Copilot chat */
.chat-window {
  display: flex; flex-direction: column;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  height: 480px;
}
.chat-log {
  flex: 1; overflow-y: auto; padding: 16px;
  display: flex; flex-direction: column; gap: 10px;
}
.chat-msg {
  max-width: 85%; padding: 10px 14px; border-radius: 10px;
  font-size: 13.5px; line-height: 1.5;
}
.chat-msg.user      { align-self: flex-end;   background: rgba(45, 212, 191, 0.12); border: 1px solid rgba(45, 212, 191, 0.22); }
.chat-msg.assistant { align-self: flex-start; background: rgba(255,255,255,0.04);   border: 1px solid var(--border-subtle); }
.chat-input {
  display: flex; gap: 8px; padding: 10px;
  border-top: 1px solid var(--border-subtle);
}
.chat-input input {
  flex: 1;
  background: var(--bg-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 10px 12px;
  font-size: 13.5px;
  font-family: var(--font-sans);
}
.chat-input input:focus { outline: none; border-color: var(--accent-teal); }

/* Spinner / loading */
.loading { color: var(--text-muted); font-size: 12px; padding: 10px 0; }

/* Empty states */
.empty-state {
  color: var(--text-muted); padding: 36px 14px; text-align: center; font-size: 13px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: rgba(148,163,184,0.18); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(148,163,184,0.30); }