:root {
  color-scheme: light;
  --bg: #f3f5f7;
  --panel: #ffffff;
  --text: #172126;
  --muted: #64727d;
  --line: #d9e0e5;
  --accent: #0f766e;
  --accent-weak: #d9f3ee;
  --warn: #b7791f;
  --bad: #b42318;
  --good: #177245;
}

* {
  box-sizing: border-box;
}

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

button,
input,
select {
  font: inherit;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 5;
  padding: 14px 14px 12px;
  background: #0f766e;
  color: #fff;
  box-shadow: 0 8px 20px rgba(15, 118, 110, 0.22);
}

.app-header h1 {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.2;
  text-align: center;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  max-width: 440px;
  margin: 0 auto;
  padding: 4px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.18);
}

.tab {
  min-height: 42px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
}

.tab.is-active {
  background: #fff;
  color: #0f766e;
}

.app-main {
  width: min(720px, 100%);
  margin: 0 auto;
  padding: 12px 10px 140px;
}

.panel {
  margin-bottom: 10px;
  padding: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.panel h2 {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0;
}

.grid {
  display: grid;
  gap: 10px;
}

.grid.two {
  grid-template-columns: 1fr 1fr;
}

.grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.grid + .grid {
  margin-top: 10px;
}

.field {
  display: grid;
  gap: 5px;
}

.field span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.field input,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 9px 10px;
  border: 1.5px solid var(--line);
  border-radius: 7px;
  background: #fbfcfd;
  color: var(--text);
  font-size: 18px;
  font-weight: 800;
}

.field.compact input,
.field.compact select {
  min-height: 42px;
  font-size: 15px;
}

.field input:focus,
.field select:focus {
  outline: 3px solid rgba(15, 118, 110, 0.18);
  border-color: var(--accent);
  background: #fff;
}

.slider {
  width: 100%;
  margin-top: 10px;
  accent-color: var(--accent);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 2px;
  color: #7b8790;
  font-size: 10px;
  font-weight: 700;
}

.fee-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

.breakdown {
  margin: 0;
}

.breakdown div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid #edf1f4;
}

.breakdown div:last-child {
  border-bottom: 0;
}

.breakdown dt {
  color: var(--muted);
  font-size: 13px;
}

.breakdown dd {
  margin: 0;
  font-size: 14px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.limit-box {
  display: grid;
  gap: 4px;
  padding: 12px;
  border-radius: 8px;
  background: var(--accent-weak);
  text-align: center;
}

.limit-box span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.limit-box strong {
  color: #0f5f59;
  font-size: 30px;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.result-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
  background: rgba(23, 33, 38, 0.92);
  backdrop-filter: blur(12px);
}

.result-bar div {
  min-width: 0;
  padding: 10px 8px;
  border-radius: 8px;
  background: #fff;
  text-align: center;
}

.result-bar span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.result-bar strong {
  display: block;
  margin: 2px 0;
  color: var(--good);
  font-size: clamp(24px, 7vw, 34px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.result-bar small {
  display: inline-block;
  min-width: 56px;
  padding: 3px 8px;
  border-radius: 999px;
  background: #e7f7ef;
  color: var(--good);
  font-size: 12px;
  font-weight: 800;
}

.result-bar.is-warn strong,
.result-bar.is-warn small {
  color: var(--warn);
}

.result-bar.is-warn small {
  background: #fff3cf;
}

.result-bar.is-bad strong,
.result-bar.is-bad small {
  color: var(--bad);
}

.result-bar.is-bad small {
  background: #ffe2df;
}

@media (max-width: 420px) {
  .app-main {
    padding-left: 8px;
    padding-right: 8px;
  }

  .panel {
    padding: 12px;
  }

  .grid.three {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 340px) {
  .grid.two,
  .grid.three {
    grid-template-columns: 1fr;
  }
}