:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --surface: #ffffff;
  --surface-strong: #eef2ee;
  --ink: #17201d;
  --muted: #5f6c66;
  --line: #d8ded7;
  --primary: #176b5d;
  --primary-ink: #ffffff;
  --accent: #2f5f9f;
  --warning: #a76518;
  --danger: #a33d3d;
  --shadow: 0 14px 36px rgba(25, 35, 31, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button,
select,
input {
  min-height: 44px;
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(47, 95, 159, 0.38);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 20;
  background: var(--ink);
  color: white;
  padding: 10px 14px;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 16px;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(16px, 4vw, 48px);
  background: rgba(246, 247, 244, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 220px;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 8px;
}

h1,
h2 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  font-size: 1.35rem;
  font-weight: 760;
}

h2 {
  font-size: 1.35rem;
  font-weight: 720;
}

.brand p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.tabs,
.mode-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tab,
.mode-button {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 9px 14px;
  cursor: pointer;
}

.tab.active,
.mode-button.active {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--primary-ink);
}

.app-main {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px clamp(16px, 4vw, 48px) 56px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.stat {
  min-height: 88px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 650;
  text-transform: uppercase;
}

.stat strong {
  display: block;
  margin-top: 6px;
  font-size: 1.5rem;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.alert {
  margin-bottom: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(163, 61, 61, 0.35);
  border-left: 4px solid var(--danger);
  border-radius: var(--radius);
  background: #fff7f6;
  color: #632222;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 4px 0 16px;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.help-button {
  min-height: 36px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
}

.help-button:hover {
  border-color: rgba(23, 107, 93, 0.45);
  background: #f0f7f5;
}

.toolbar {
  display: flex;
  align-items: end;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.toolbar label {
  display: grid;
  gap: 6px;
  min-width: min(280px, 100%);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
}

.toolbar input,
.toolbar select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 9px 11px;
}

.efficiency-toolbar label:nth-child(2) {
  min-width: min(360px, 100%);
}

input[type="range"] {
  accent-color: var(--primary);
  padding: 0;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
  font-size: 0.94rem;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  background: var(--surface-strong);
  color: #33413c;
  font-size: 0.78rem;
  text-transform: uppercase;
}

td {
  font-variant-numeric: tabular-nums;
}

tbody tr:hover {
  background: #f9fbf9;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.name-cell {
  font-weight: 680;
  color: var(--ink);
}

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

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 8px;
  border-radius: 999px;
  background: #eaf0f9;
  color: #214876;
  font-size: 0.82rem;
  font-weight: 700;
}

.empty {
  padding: 22px 14px;
  color: var(--muted);
}

.help-dialog {
  width: min(720px, calc(100% - 32px));
  max-height: min(760px, calc(100% - 32px));
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
}

.help-dialog::backdrop {
  background: rgba(18, 28, 25, 0.42);
}

.help-panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 26px 72px rgba(18, 28, 25, 0.24);
}

.help-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-strong);
}

.icon-button {
  width: 40px;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.help-body {
  display: grid;
  gap: 18px;
  max-height: min(620px, calc(100vh - 140px));
  overflow: auto;
  padding: 20px;
}

.help-section h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.help-section ul {
  margin: 0;
  padding-left: 20px;
}

.help-section li {
  margin: 6px 0;
}

@media (max-width: 900px) {
  .app-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .view-header {
    align-items: flex-start;
    flex-direction: column;
  }

}

@media (max-width: 560px) {
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .tabs,
  .mode-group {
    width: 100%;
  }

  .tab,
  .mode-button {
    flex: 1 1 calc(50% - 8px);
  }

  .brand {
    min-width: 0;
  }
}