:root {
  --bg: #f7f7f2;
  --ink: #151611;
  --muted: #697062;
  --accent: #1f7a4d;
  --accent-soft: #cfe4d8;
  --line: rgba(21, 22, 17, 0.1);
  --panel: rgba(255, 255, 255, 0.78);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 100% 0, rgba(31, 122, 77, 0.12), transparent 26%),
    linear-gradient(180deg, #fbfbf7 0%, #f2f2ea 100%);
}

.app-shell {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0 34px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  padding: 12px 0 26px;
}

.eyebrow,
.label {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.topbar h1,
.section-head h2 {
  margin: 10px 0 0;
  line-height: 1.02;
}

.topbar h1 {
  font-size: clamp(28px, 4.5vw, 54px);
  max-width: 12ch;
}

.portal-link {
  padding: 12px 14px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.8);
}

.webapp-status {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
  color: var(--muted);
  font-size: 14px;
}

.webapp-status.ready {
  color: var(--accent);
  background: rgba(31, 122, 77, 0.08);
}

.summary-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.metric,
.column {
  background: var(--panel);
  border: 1px solid var(--line);
}

.metric {
  padding: 18px;
}

.metric span {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}

.metric strong {
  font-size: clamp(22px, 3vw, 34px);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 0.62fr);
  gap: 22px;
}

.column {
  padding: 22px;
}

.expense-form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
}

input,
select,
button {
  width: 100%;
  padding: 14px 15px;
  border: 1px solid var(--line);
  background: #fff;
  font: inherit;
}

button {
  cursor: pointer;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
}

.form-message {
  min-height: 24px;
  margin-top: 12px;
  color: var(--muted);
}

.expense-list,
.breakdown-list {
  display: grid;
  gap: 10px;
}

.expense-item,
.breakdown-item {
  display: grid;
  gap: 4px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--line);
}

.expense-item-head,
.breakdown-item-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-weight: 700;
}

.expense-meta {
  color: var(--muted);
  font-size: 14px;
}

.section-gap {
  margin-top: 24px;
}

@media (max-width: 980px) {
  .summary-band,
  .workspace {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
  }
}