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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #0f172a 0, #020617 45%, #020617 100%);
  color: #e5e7eb;
  min-height: 100vh;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.app-header h1 {
  font-size: 1.8rem;
  font-weight: 600;
}

.app-header p {
  color: #9ca3af;
  font-size: 0.95rem;
}

.status-pill {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  background: #111827;
  border: 1px solid #374151;
  color: #9ca3af;
}

.status-pill.online {
  background: rgba(22, 163, 74, 0.15);
  border-color: #16a34a;
  color: #bbf7d0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: radial-gradient(circle at top left, #1f2937 0, #020617 50%);
  border-radius: 1rem;
  padding: 1.25rem 1.3rem 1.4rem;
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.7);
}

.card h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.tank {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0.5rem 0 1rem;
}

.tank-inner {
  width: 70px;
  height: 180px;
  border-radius: 999px;
  border: 2px solid #4b5563;
  padding: 4px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: linear-gradient(to bottom, #020617, #020617 40%, #0b1120);
}

.tank-fill {
  width: 100%;
  height: 0%;
  border-radius: 999px;
  background: linear-gradient(to top, #22c55e, #4ade80, #a7f3d0);
  box-shadow: 0 0 20px rgba(74, 222, 128, 0.4);
  transition: height 0.5s ease, box-shadow 0.5s ease;
}

.tank-label span {
  display: block;
}

#level-percent {
  font-size: 1.6rem;
  font-weight: 600;
}

#level-raw {
  font-size: 0.8rem;
  color: #9ca3af;
}

.info-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #9ca3af;
  margin-bottom: 0.15rem;
}

.pump-status {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.pumps-multi {
  margin-top: 0.75rem;
}

.pumps-list {
  margin-top: 0.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.8rem;
}

.pump-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.25rem 0.45rem;
  border-radius: 0.5rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(55, 65, 81, 0.8);
  cursor: pointer;
  transition: border-color 0.12s ease, background 0.12s ease;
}

.pump-row-main {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.pump-row-name {
  font-weight: 500;
  font-size: 0.8rem;
}

.pump-row-meta {
  display: flex;
  gap: 0.5rem;
  color: #9ca3af;
  flex-wrap: wrap;
}

.pump-row-selected {
  border-color: #22c55e;
  background: rgba(22, 163, 74, 0.18);
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  background: #111827;
  border: 1px solid #374151;
}

.pill-on {
  background: rgba(22, 163, 74, 0.15);
  border-color: #16a34a;
  color: #bbf7d0;
}

.pill-off {
  background: rgba(220, 38, 38, 0.15);
  border-color: #ef4444;
  color: #fecaca;
}

.btn-row {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0 0.75rem;
}

.btn {
  flex: 1;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid #4b5563;
  background: #020617;
  color: #e5e7eb;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease,
    transform 0.05s ease;
}

.btn.primary {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  border-color: transparent;
  color: #022c22;
  font-weight: 600;
}

.btn.full {
  width: 100%;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: #9ca3af;
}

.btn.primary:hover {
  filter: brightness(1.05);
}

.btn:active {
  transform: translateY(0);
}

.slider-row {
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

.slider-row input[type="range"] {
  width: 100%;
  margin-top: 0.2rem;
}

.config-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.field label {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.25rem;
}

.field input,
.field select {
  width: 100%;
  padding: 0.4rem 0.6rem;
  border-radius: 0.6rem;
  border: 1px solid #4b5563;
  background: #020617;
  color: #e5e7eb;
  font-size: 0.9rem;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: #22c55e;
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.4);
}

.hint {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: #9ca3af;
}

.alarms-list {
  list-style: none;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  max-height: 220px;
  overflow-y: auto;
}

.alarms-list li {
  padding: 0.3rem 0.1rem;
  border-bottom: 1px dashed rgba(75, 85, 99, 0.6);
}

.alarms-list li:last-child {
  border-bottom: none;
}

.alarms-list li.error {
  color: #fecaca;
}

.alarms-list li.warn {
  color: #fde68a;
}

.alarms-list li.info {
  color: #a5b4fc;
}

.alarms-list li.muted {
  color: #6b7280;
  font-style: italic;
}

@media (max-width: 640px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
  }
}