:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #172033;
  --muted: #697386;
  --line: #d9e0ea;
  --blue: #155eef;
  --blue-soft: #e8f0ff;
  --green: #16794c;
  --green-soft: #e7f6ef;
  --amber: #9a5b00;
  --amber-soft: #fff3d9;
  --red: #b42318;
  --red-soft: #fee7e4;
  --shadow: 0 18px 50px rgba(22, 32, 51, 0.1);
}

* {
  box-sizing: border-box;
}

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

button,
input {
  font: inherit;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 20px;
}

.intro {
  grid-column: 1 / -1;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 8px 0 4px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.05;
}

.intro p:not(.eyebrow) {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
}

.ghost-button {
  min-height: 44px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 700;
  cursor: pointer;
}

.calculator {
  display: grid;
  gap: 16px;
}

.panel,
.decision-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel {
  padding: 22px;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

.step {
  width: 32px;
  height: 32px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 800;
}

.panel h2,
.decision-card h2 {
  margin-bottom: 4px;
  font-size: 1.22rem;
}

.panel p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.45;
}

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

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

.field {
  display: grid;
  gap: 8px;
}

.field span,
.toggle-row > span {
  color: #3a4456;
  font-size: 0.9rem;
  font-weight: 700;
}

.field input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #fbfcff;
  color: var(--text);
  outline: none;
}

.field input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(21, 94, 239, 0.14);
}

.summary-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  margin-top: 16px;
  padding: 0 14px;
  border-radius: 8px;
  background: #eef4ff;
  color: #29405f;
}

.summary-strip.muted {
  background: #f2f4f7;
}

.summary-strip span {
  font-weight: 700;
}

.summary-strip strong {
  font-size: 1.05rem;
}

.toggle-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.toggle-group label {
  cursor: pointer;
}

.toggle-group input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.toggle-group span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 14px;
  background: #fbfcff;
  color: #3a4456;
  font-weight: 750;
}

.toggle-group input:checked + span {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue);
}

.federal-value,
.toggle-row {
  margin-top: 16px;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toggle-group.compact span {
  min-width: 74px;
  justify-content: center;
}

.decision-card {
  position: sticky;
  top: 24px;
  align-self: start;
  padding: 24px;
  border-top: 6px solid var(--blue);
}

.decision-card.approved {
  border-top-color: var(--green);
  background: linear-gradient(180deg, var(--green-soft), #ffffff 42%);
}

.decision-card.pending {
  border-top-color: var(--amber);
  background: linear-gradient(180deg, var(--amber-soft), #ffffff 42%);
}

.decision-card.rejected {
  border-top-color: var(--red);
  background: linear-gradient(180deg, var(--red-soft), #ffffff 42%);
}

.decision-card.small {
  border-top-color: var(--blue);
  background: linear-gradient(180deg, var(--blue-soft), #ffffff 42%);
}

.decision-label {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

#decisionText {
  color: var(--muted);
  line-height: 1.55;
}

.reason-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.reason {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: #344054;
  line-height: 1.4;
}

.reason::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 50%;
  background: currentColor;
  flex: 0 0 auto;
}

.script-box {
  margin-top: 20px;
  padding: 16px;
  border: 1px dashed #c4ccd8;
  border-radius: 8px;
  background: #f8fafc;
}

.script-box span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.script-box p {
  margin-bottom: 0;
  color: var(--text);
  line-height: 1.5;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .decision-card {
    position: static;
  }

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

@media (max-width: 620px) {
  .app-shell {
    width: min(100% - 20px, 1180px);
    padding: 18px 0;
  }

  .intro,
  .toggle-row {
    align-items: stretch;
    flex-direction: column;
  }

  .ghost-button {
    width: 100%;
  }

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

  .panel,
  .decision-card {
    padding: 18px;
  }
}