:root {
  --bg: #eef3fb;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #fdfefe;
  --surface-soft: rgba(245, 249, 255, 0.92);
  --text: #162033;
  --muted: #5d6b85;
  --accent: #0f62fe;
  --accent-strong: #0043ce;
  --line: rgba(30, 64, 175, 0.12);
  --shadow: 0 18px 48px rgba(15, 34, 71, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 98, 254, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(34, 197, 94, 0.12), transparent 24%),
    linear-gradient(160deg, #f7fbff 0%, var(--bg) 52%, #e7eef9 100%);
}

.app-shell {
  width: min(1320px, calc(100% - 64px));
  margin: 0 auto;
  padding: 42px 0 56px;
}

.active-month-panel {
  padding: 20px;
  margin-bottom: 22px;
}

.brand-bar {
  display: flex;
  align-items: center;
}

.brand-bar {
  gap: 14px;
  margin-bottom: 22px;
}

.brand-logo {
  display: block;
  height: 88px;
  width: auto;
  object-fit: contain;
}

.brand-copy {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-copy strong,
.brand-copy span,
.panel h2,
.panel h3,
.summary-card strong,
.result-row strong {
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
}

.brand-copy strong {
  margin: 0;
  font-size: 1.8rem;
  line-height: 1;
  letter-spacing: -0.03em;
}

.brand-copy span {
  color: var(--accent);
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.subtle {
  margin: 4px 0 0;
  font-size: 0.92rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(1120px, 1.6fr) minmax(340px, 0.7fr);
  gap: 22px;
  align-items: start;
}

.results-panel {
  grid-column: 1 / -1;
}

.panel {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.form-panel,
.results-panel {
  padding: 24px;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.panel-heading.compact {
  margin-bottom: 14px;
}

.panel-heading h2,
.panel-heading h3,
.months-head h3,
.detail-card h3,
.note-panel h3 {
  margin: 0;
  font-size: 1.2rem;
}

.action-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.ghost-button,
.delete-row,
.row-action-button,
select,
input {
  border-radius: 14px;
  border: 1px solid var(--line);
  font: inherit;
}

.ghost-button,
.delete-row,
.row-action-button {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}

.ghost-button:hover,
.delete-row:hover,
.row-action-button:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 98, 254, 0.35);
  box-shadow: 0 10px 24px rgba(15, 98, 254, 0.12);
}

.settings-grid,
.tax-bracket-grid {
  display: grid;
  gap: 14px;
}

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

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

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.compact-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
}

.mini-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 120px;
}

#month-select {
  min-width: 180px;
}

.year-field {
  margin-top: 0;
}

.header-control-row {
  display: flex;
  align-items: end;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

#open-month {
  min-width: 72px;
  height: 48px;
  font-weight: 700;
}

.mini-field span {
  font-size: 0.82rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
}

.mini-field input {
  height: 48px;
  padding: 10px 14px;
  border-radius: 16px;
}

.field span {
  font-size: 0.92rem;
  color: var(--muted);
}

select,
input {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.tax-settings {
  margin-top: 18px;
  padding: 18px;
  border-radius: 22px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.months-head {
  margin-top: 20px;
}

.active-month-head,
.completed-month-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.active-month-label {
  margin: 0 0 6px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  font-weight: 700;
}

.active-month-head h3 {
  margin: 0;
  font-size: 1.7rem;
}

.active-fields-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 14px;
}

.active-fields-grid input {
  height: 64px;
  padding: 12px 18px;
  font-size: 1rem;
  border-radius: 20px;
}

.import-card {
  margin-top: 16px;
  padding: 16px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(246, 250, 255, 0.96) 0%, rgba(240, 246, 255, 0.9) 100%);
}

.import-debug {
  margin-top: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.92rem;
}

.import-debug strong {
  color: var(--text);
}

.import-grid {
  display: grid;
  gap: 16px;
  align-items: start;
}

.import-grid.single-file {
  grid-template-columns: minmax(320px, 420px);
}

.import-grid input[type="file"] {
  height: 52px;
  padding: 10px 12px;
}

.active-month-inline-results {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.active-month-inline-results article,
.completed-month-item {
  padding: 14px 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff 0%, #f6faff 100%);
}

.active-month-inline-results span,
.completed-month-stats span {
  color: var(--muted);
}

.active-month-inline-results strong {
  display: block;
  margin-top: 6px;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  font-size: 1.35rem;
}

.completed-months {
  margin-top: 20px;
}

.compact-head {
  margin-bottom: 12px;
}

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

.completed-month-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
}

.completed-month-stats.input-stats {
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.completed-month-stats span {
  line-height: 1.5;
}

.badge {
  margin: 0;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(15, 98, 254, 0.1);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
}

.summary-grid,
.detail-grid {
  display: grid;
  gap: 14px;
}

.summary-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: start;
}

.detail-grid {
  margin-top: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.detail-grid.single-column {
  grid-template-columns: 1fr;
}

.summary-card,
.detail-card,
.note-panel {
  padding: 18px;
  border-radius: 22px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.summary-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 188px;
}

.summary-card span,
.summary-card small,
.note-panel li {
  color: var(--muted);
}

.summary-card strong {
  font-size: clamp(1.5rem, 2vw, 2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.summary-card.accent {
  background: linear-gradient(135deg, var(--accent) 0%, #3b82f6 55%, #22c55e 100%);
}

.summary-card.accent span,
.summary-card.accent strong,
.summary-card.accent small {
  color: #fff7ef;
}

.result-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.result-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 14px;
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
  border: 1px solid var(--line);
}

.result-row div {
  display: grid;
  gap: 4px;
}

.result-row small,
.empty-state {
  color: var(--muted);
}

.result-row span {
  white-space: nowrap;
  font-weight: 700;
  color: var(--accent-strong);
}

.quarter-columns {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: start;
}

.quarter-column {
  display: grid;
  gap: 10px;
  padding: 14px;
  border-radius: 22px;
  background: linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
  border: 1px solid var(--line);
}

.quarter-column-head strong,
.quarter-month-head strong,
.quarter-summary-card strong {
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
}

.quarter-column-head {
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.quarter-month-list {
  display: grid;
  gap: 10px;
}

.quarter-month-card,
.quarter-summary-card {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
}

.quarter-month-card.is-empty {
  background: rgba(240, 246, 255, 0.8);
  border-style: dashed;
}

.quarter-month-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}

.quarter-month-actions {
  display: flex;
  justify-content: flex-end;
}

.quarter-month-actions .ghost-button {
  padding: 8px 12px;
}

.quarter-month-head span,
.quarter-summary-card strong {
  font-weight: 700;
  color: var(--accent-strong);
}

.quarter-month-card small,
.quarter-summary-card span,
.quarter-summary-card small {
  color: var(--muted);
  line-height: 1.55;
}

.quarter-month-lines {
  display: grid;
  gap: 4px;
}

.quarter-month-lines small {
  display: block;
}

.note-panel {
  margin-top: 14px;
}

.note-panel ul {
  margin: 12px 0 0;
  padding-left: 18px;
  line-height: 1.6;
}

@media (max-width: 1120px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .app-shell {
    width: min(100% - 20px, 100%);
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 20px, 100%);
    padding-top: 24px;
  }

  .panel-heading,
  .action-row,
  .compact-toolbar,
  .settings-grid,
  .tax-bracket-grid,
  .summary-grid,
  .active-month-head,
  .completed-month-head {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .settings-grid,
  .tax-bracket-grid,
  .summary-grid,
  .active-fields-grid,
  .active-month-inline-results,
  .import-grid,
  .quarter-columns {
    display: grid;
    grid-template-columns: 1fr;
  }

  .result-row {
    flex-direction: column;
    align-items: flex-start;
  }
}