/* ============================================================
   Redis Autoscaler Demo — full stylesheet (no framework).
   ============================================================ */

:root {
  --c-bg:           #0a0e1a;
  --c-card:         #131826;
  --c-card-hi:      #1a2034;
  --c-border:       #1f2937;
  --c-border-strong:#374151;
  --c-text:         #f3f4f6;
  --c-text-dim:     #9ca3af;
  --c-text-dimmer:  #6b7280;
  --c-redis:        #DC382D;
  --c-redis-dark:   #A52A1F;
  --c-emerald:      #10b981;
  --c-amber:        #f59e0b;
  --c-blue:         #3b82f6;
  --c-purple:       #a855f7;
  --shadow-card:    0 8px 24px rgba(0,0,0,0.30);
  --shadow-glow:    0 0 0 1px rgba(220,56,45,0.08), 0 8px 32px rgba(220,56,45,0.10);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* radial accent in background */
body {
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(220,56,45,0.06), transparent 60%),
    radial-gradient(1000px 500px at 100% 0%, rgba(59,130,246,0.05), transparent 60%),
    var(--c-bg);
  min-height: 100vh;
}

/* ============================================================ TOPBAR */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(10,14,26,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}
.topbar-inner {
  max-width: 1800px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 18px;
}
.logo {
  height: 36px;
  width: auto;
}
.brand-divider {
  width: 1px;
  height: 36px;
  background: var(--c-border-strong);
}
.brand h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand p {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--c-text-dim);
}

.brand-right { display: flex; align-items: center; gap: 18px; }
.db-tag { display: flex; flex-direction: column; align-items: flex-end; }
.db-tag-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-dimmer);
}
.db-tag-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--c-text);
}
.ws-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--c-card-hi);
  border: 1px solid var(--c-border);
  font-size: 11px;
  color: var(--c-text-dim);
}
.ws-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-text-dimmer);
  animation: dot-pulse 1.8s ease-in-out infinite;
}
.ws-dot.ws-on  { background: var(--c-emerald); }
.ws-dot.ws-off { background: var(--c-redis); }
@keyframes dot-pulse {
  0%, 100% { box-shadow: 0 0 0 0 currentColor; opacity: 1; }
  50%      { box-shadow: 0 0 0 5px transparent; opacity: 0.7; }
}

/* ============================================================ GRID */
main {
  max-width: 1800px;
  margin: 0 auto;
  padding: 28px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 22px;
}
.span-4  { grid-column: span 4; }
.span-5  { grid-column: span 5; }
.span-7  { grid-column: span 7; }
.span-12 { grid-column: span 12; }

@media (max-width: 1100px) {
  .span-4, .span-5, .span-7 { grid-column: span 12; }
}

/* ============================================================ CARDS */
.card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.card-header {
  padding: 14px 22px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.015), transparent);
}
.card-title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--c-text);
}
.card-sub {
  font-size: 11px;
  color: var(--c-text-dimmer);
}
.card-body { padding: 20px 22px; }
.card-body.stack       { display: flex; flex-direction: column; gap: 22px; }
.card-body.stack-tight { display: flex; flex-direction: column; gap: 14px; }

/* ============================================================ ROWS / VALUES */
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.row.baseline { align-items: baseline; margin-bottom: 6px; }
.row.small { font-size: 12px; }

.label  { font-size: 12px; color: var(--c-text-dim); }
.value  { font-size: 14px; color: var(--c-text); }
.value-block { text-align: right; }

.huge-number {
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.big-number {
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.med-number {
  font-size: 16px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.unit {
  font-size: 12px;
  font-weight: 400;
  color: var(--c-text-dim);
}

.badge {
  display: inline-block;
  margin-top: 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--c-text-dimmer);
}
.badge.b-base   { color: var(--c-emerald); }
.badge.b-scaled { color: var(--c-redis); }
.badge.b-mid    { color: var(--c-amber); }

.bar {
  margin-top: 8px;
  height: 6px;
  background: var(--c-bg);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--c-border);
}
.bar-fill {
  height: 100%;
  border-radius: 999px;
  width: 0%;
  transition: width 0.6s ease;
}
.bar-redis { background: linear-gradient(90deg, var(--c-redis), #ff6b5b); }
.bar-blue  { background: linear-gradient(90deg, var(--c-blue),  #60a5fa); }
.bar-amber { background: linear-gradient(90deg, var(--c-amber), #fbbf24); }
.bar-green { background: linear-gradient(90deg, var(--c-emerald),#34d399); }

.mono  { font-family: 'JetBrains Mono', monospace; }
.dim   { color: var(--c-text-dim); }
.dimmer{ color: var(--c-text-dimmer); }
.micro { font-size: 11px; }
.small { font-size: 12px; }

/* ============================================================ DB Status text */
.status-active   { color: var(--c-emerald); font-weight: 600; }
.status-pending  { color: var(--c-amber);   font-weight: 600; }
.status-error    { color: var(--c-redis);   font-weight: 600; }

/* ============================================================ Alerts panel */
.alert-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background 0.2s ease;
}
.alert-row.firing {
  background: rgba(220,56,45,0.08);
  border-color: rgba(220,56,45,0.18);
}
.alert-row .alert-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--c-text);
}
.alert-row.firing .alert-name { color: var(--c-redis); }
.alert-state {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.alert-state.inactive { background: rgba(16,185,129,0.10); color: var(--c-emerald); }
.alert-state.pending  { background: rgba(245,158,11,0.12); color: var(--c-amber); }
.alert-state.firing   { background: rgba(220,56,45,0.16); color: var(--c-redis); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

/* ============================================================ Events panel */
.events-body {
  padding: 8px 12px;
  max-height: 360px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.event-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 7px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  border-radius: 6px;
  border-left: 3px solid transparent;
  transition: background 0.15s ease;
}
.event-row:hover { background: var(--c-card-hi); }
.event-ts { color: var(--c-text-dimmer); flex-shrink: 0; font-variant-numeric: tabular-nums; }
.event-msg { color: #e5e7eb; }

.event-row.kind-scale_up_throughput { border-left-color: var(--c-emerald); }
.event-row.kind-scale_up_throughput .event-msg,
.event-row.kind-scale_memory       .event-msg { color: #6ee7b7; font-weight: 600; }
.event-row.kind-scale_down_throughput { border-left-color: var(--c-blue); }
.event-row.kind-scale_down_throughput .event-msg { color: #93c5fd; font-weight: 600; }
.event-row.kind-webhook { border-left-color: var(--c-amber); }
.event-row.kind-webhook .event-msg { color: #fcd34d; }
.event-row.kind-task .event-msg { color: var(--c-text-dim); }
.event-row.kind-silence .event-msg { color: var(--c-text-dimmer); font-style: italic; }

/* ============================================================ Form */
.field-label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-dim);
  margin-bottom: 6px;
  font-weight: 600;
}
.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.preset-btn {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  color: #d1d5db;
  cursor: pointer;
  transition: all 0.15s ease;
}
.preset-btn:hover {
  border-color: var(--c-border-strong);
  color: var(--c-text);
  transform: translateY(-1px);
}
.preset-btn.active {
  background: var(--c-redis);
  border-color: var(--c-redis);
  color: white;
  box-shadow: 0 4px 12px rgba(220,56,45,0.30);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 22px;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.slider-row input[type=range] { flex: 1; }
.slider-value {
  min-width: 52px;
  text-align: right;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--c-text);
}
.estimate { display: flex; flex-direction: column; justify-content: flex-end; }
.estimate-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--c-text);
}

select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: var(--c-bg) url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='%239ca3af'%3E%3Cpath d='M6 8L2 4h8z'/%3E%3C/svg%3E") no-repeat right 10px center;
  border: 1px solid var(--c-border);
  color: var(--c-text);
  border-radius: 8px;
  padding: 8px 32px 8px 12px;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
}
select:focus { outline: none; border-color: var(--c-redis); box-shadow: 0 0 0 3px rgba(220,56,45,0.12); }

input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  height: 16px;
  cursor: pointer;
}
input[type=range]::-webkit-slider-runnable-track {
  background: var(--c-border);
  border-radius: 999px;
  height: 4px;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  height: 16px; width: 16px;
  border-radius: 50%;
  background: var(--c-redis);
  margin-top: -6px;
  box-shadow: 0 2px 8px rgba(220,56,45,0.5);
}
input[type=range]::-moz-range-track {
  background: var(--c-border);
  border-radius: 999px;
  height: 4px;
}
input[type=range]::-moz-range-thumb {
  height: 16px; width: 16px;
  border: 0;
  border-radius: 50%;
  background: var(--c-redis);
}

.cmd-preview {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 10px 12px;
  color: #cbd5e1;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-x: auto;
  margin: 0;
  line-height: 1.5;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-top: 4px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  font-family: inherit;
}
.btn svg { width: 16px; height: 16px; fill: currentColor; }
.btn-start {
  background: var(--c-redis);
  color: white;
  box-shadow: 0 4px 16px rgba(220,56,45,0.30);
}
.btn-start:hover { background: var(--c-redis-dark); transform: translateY(-1px); }
.btn-stop {
  background: var(--c-card-hi);
  border-color: var(--c-border-strong);
  color: #d1d5db;
}
.btn-stop:hover { border-color: var(--c-redis); color: var(--c-redis); }

/* ============================================================ Chart */
.chart-body { padding: 14px 18px 18px; }
#chart { max-height: 280px; }

/* ============================================================ Toasts */
#toasts {
  position: fixed;
  top: 90px;
  right: 24px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 400px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid;
  background: rgba(19,24,38,0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.5);
  animation: slideIn .25s cubic-bezier(.16,1,.3,1), fadeOut .4s ease 5.5s forwards;
}
.toast-title { font-size: 13px; font-weight: 600; color: var(--c-text); }
.toast-msg   { font-size: 11px; color: var(--c-text-dim); margin-top: 3px; }
.toast.success { border-color: rgba(16,185,129,0.45); }
.toast.warning { border-color: rgba(245,158,11,0.45); }
.toast.error   { border-color: rgba(220,56,45,0.45);  }
.toast.info    { border-color: rgba(59,130,246,0.45); }

@keyframes slideIn { from { transform: translateX(120%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { to { opacity: 0; transform: translateX(20%); } }

/* ============================================================ Animations */
.flash { animation: flash 1.4s ease; }
@keyframes flash {
  0%   { color: var(--c-redis); transform: scale(1.06); }
  100% { color: inherit; transform: scale(1); }
}

.memtier-running { box-shadow: var(--shadow-glow); border-color: rgba(220,56,45,0.35); }
.memtier-running .card-header { background: linear-gradient(180deg, rgba(220,56,45,0.06), transparent); }

/* ============================================================ Diagnostics */
.diag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--c-text-dimmer);
  border-top: 1px solid var(--c-border);
  padding-top: 14px;
  display: flex;
  justify-content: space-between;
}
.diag .hidden { display: none; }
#diag-db, #diag-prom { display: inline-block; margin-right: 18px; color: var(--c-redis); }

/* ============================================================ Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-border-strong); }