:root {
  color-scheme: light;
  --bg: #f6f7f8;
  --surface: #ffffff;
  --surface-strong: #eef2f6;
  --text: #17202a;
  --muted: #5e6b78;
  --line: #d8dee6;
  --accent: #176b55;
  --accent-hover: #125542;
  --danger: #b42318;
  --shadow: 0 14px 36px rgba(23, 32, 42, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  touch-action: manipulation;
}

.app-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  line-height: 1.1;
}

.topbar p {
  margin-top: 8px;
  color: var(--muted);
}

.filters {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr)) repeat(2, auto);
  gap: 12px;
  align-items: end;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

input,
select {
  min-height: 44px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 11px;
  background: #fff;
  color: var(--text);
}

input:focus,
select:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(23, 107, 85, 0.16);
}

.primary-button {
  background: var(--accent);
  color: #fff;
  padding: 0 18px;
}

.primary-button:hover {
  background: var(--accent-hover);
}

.secondary-button,
.icon-button {
  background: var(--surface-strong);
  color: var(--text);
  padding: 0 14px;
}

.status-row {
  display: grid;
  gap: 10px;
  margin: 18px 0;
}

.summary {
  color: var(--muted);
}

.error {
  border-left: 4px solid var(--danger);
  background: #fff1f0;
  color: var(--danger);
  padding: 12px;
  border-radius: 8px;
}

.results {
  display: grid;
  gap: 14px;
}

.shift-card {
  display: grid;
  gap: 14px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.shift-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.metric-block {
  display: grid;
  justify-items: end;
  gap: 8px;
}

.card-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.collapse-button {
  min-height: 36px;
}

.shift-body {
  display: grid;
  gap: 14px;
}

.shift-body[hidden] {
  display: none;
}

.shift-title {
  font-weight: 700;
  font-size: 1.05rem;
}

.metric {
  text-align: right;
  color: var(--muted);
  white-space: nowrap;
}

.pump-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.pump-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.pump-block h3 {
  font-size: 0.98rem;
  margin-bottom: 10px;
}

.detail-list {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.93rem;
}

.truck-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.truck-stop {
  background: var(--surface-strong);
  border-radius: 8px;
  padding: 10px;
  font-size: 0.92rem;
}

.empty-state {
  padding: 28px;
  text-align: center;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.settings-dialog {
  width: min(980px, calc(100% - 24px));
  max-height: min(860px, calc(100vh - 24px));
  border: 0;
  border-radius: 8px;
  padding: 0;
  box-shadow: var(--shadow);
}

.settings-dialog::backdrop {
  background: rgba(23, 32, 42, 0.45);
}

.settings-panel {
  display: grid;
  gap: 20px;
  padding: 20px;
}

.dialog-header,
.dialog-header-actions,
.section-title,
.dialog-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.toggle-row {
  grid-template-columns: auto 1fr;
  align-items: center;
  color: var(--text);
}

.toggle-row input {
  width: 22px;
  min-height: 22px;
}

.device-settings {
  display: grid;
  gap: 12px;
}

.mapping-list {
  display: grid;
  gap: 12px;
}

.mapping-card {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) repeat(5, minmax(110px, 0.8fr));
  gap: 10px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.device-name {
  color: var(--text);
  font-weight: 700;
}

.device-meta {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 820px) {
  .app-shell {
    padding: 16px;
  }

  .topbar,
  .shift-head,
  .dialog-header,
  .dialog-header-actions,
  .section-title,
  .dialog-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .filters,
  .pump-grid,
  .settings-grid,
  .mapping-card {
    grid-template-columns: 1fr;
  }

  .metric {
    text-align: left;
  }

  .metric-block {
    justify-items: stretch;
  }

  .card-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .settings-panel {
    padding: 16px;
  }
}