:root {
  color-scheme: light;
  --bg: #f3f6fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #647089;
  --primary: #155eef;
  --primary-dark: #0f47b8;
  --border: #d9e0ec;
  --warning: #b54708;
  --warning-bg: #fff4e5;
  --shadow: 0 20px 50px rgba(31, 44, 71, 0.12);
}

* {
  box-sizing: border-box;
}

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

.hero {
  background: linear-gradient(135deg, #081b4b 0%, #155eef 65%, #38bdf8 100%);
  color: white;
  padding: 56px clamp(20px, 5vw, 72px) 96px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4.6rem);
  line-height: 0.95;
  margin: 0;
  max-width: 780px;
}

.intro {
  font-size: 1.15rem;
  max-width: 720px;
  color: rgba(255, 255, 255, 0.86);
}

.eyebrow {
  color: inherit;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin: 0 0 8px;
  opacity: 0.75;
  text-transform: uppercase;
}

.app-shell {
  margin: -56px auto 48px;
  max-width: 1260px;
  padding: 0 clamp(16px, 4vw, 32px);
}

.panel,
.metric-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.panel {
  margin-bottom: 24px;
  padding: clamp(20px, 4vw, 32px);
}

.upload-panel {
  align-items: center;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 380px);
}

.panel h2 {
  font-size: 1.5rem;
  margin: 0 0 8px;
}

.panel p {
  color: var(--muted);
  margin: 0;
}

.file-drop {
  align-items: center;
  border: 2px dashed #9db4e6;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  min-height: 168px;
  padding: 24px;
  text-align: center;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.file-drop:hover,
.file-drop:focus-within {
  background: #f4f8ff;
  border-color: var(--primary);
  transform: translateY(-1px);
}

.file-drop input {
  block-size: 1px;
  inline-size: 1px;
  opacity: 0;
  position: absolute;
}

.file-drop__icon {
  align-items: center;
  background: #e9f1ff;
  border-radius: 50%;
  color: var(--primary);
  display: inline-flex;
  font-size: 1.4rem;
  height: 48px;
  justify-content: center;
  width: 48px;
}

.file-drop__title {
  font-weight: 800;
}

.file-drop__hint,
.status-message {
  color: var(--muted);
  font-size: 0.9rem;
}

.status-message {
  grid-column: 1 / -1;
}

.status-message.is-error {
  color: #b42318;
  font-weight: 700;
}

.section-heading {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 20px;
}

.controls-panel .eyebrow,
.panel:not(.upload-panel) .eyebrow {
  color: var(--primary);
}

.secondary-button {
  background: #eef4ff;
  border: 1px solid #c7d7fe;
  border-radius: 999px;
  color: var(--primary-dark);
  cursor: pointer;
  font-weight: 800;
  padding: 10px 16px;
}

.secondary-button:hover {
  background: #dce8ff;
}

.filters-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

label span {
  display: block;
  font-size: 0.9rem;
  font-weight: 800;
  margin-bottom: 8px;
}

select,
input[type="date"] {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font: inherit;
  min-height: 44px;
  padding: 10px 12px;
  width: 100%;
}

.checkbox-filter {
  align-items: center;
  background: var(--warning-bg);
  border: 1px solid #fedf89;
  border-radius: 16px;
  color: var(--warning);
  display: flex;
  gap: 10px;
  padding: 12px 14px;
}

.checkbox-filter input {
  height: 18px;
  width: 18px;
}

.checkbox-filter span {
  margin: 0;
}

.type-filter-group {
  border: 1px solid var(--border);
  border-radius: 16px;
  display: grid;
  gap: 12px;
  grid-column: 1 / -1;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 0;
  padding: 14px;
}

.type-filter-group legend {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 800;
  padding: 0 6px;
}

.type-filter-group label {
  align-items: center;
  display: flex;
  gap: 8px;
}

.type-filter-group input {
  height: 18px;
  width: 18px;
}

.type-filter-group span {
  margin: 0;
}

.summary-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 24px;
}

.metric-card {
  padding: 24px;
}

.metric-card span {
  color: var(--muted);
  display: block;
  font-size: 0.9rem;
  font-weight: 800;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.metric-card strong {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

.table-wrap {
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: auto;
}

table {
  border-collapse: collapse;
  min-width: 960px;
  width: 100%;
}

.summary-table-wrap table {
  min-width: 420px;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}

th {
  background: #f8faff;
  color: #344054;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  position: sticky;
  text-transform: uppercase;
  top: 0;
}

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

.copy-email-button {
  background: var(--primary);
  border: 0;
  border-radius: 999px;
  color: white;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 800;
  padding: 8px 12px;
}

.copy-email-button:hover {
  background: var(--primary-dark);
}

.bulk-email-actions {
  align-items: center;
  background: #f8faff;
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  margin-top: 16px;
  padding: 14px 16px;
}

.bulk-email-actions p,
.copy-feedback {
  color: var(--muted);
  margin: 0;
}

.copy-feedback {
  font-weight: 700;
  margin-top: 12px;
}

.copy-feedback.is-error {
  color: #b42318;
}

.numeric {
  text-align: right;
}

.missing-receipt {
  background: #fffaf2;
}

.empty-row td,
.empty-row {
  color: var(--muted);
  font-style: italic;
  text-align: center;
}

.site-footer {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0 auto 32px;
  max-width: 1260px;
  padding: 0 clamp(16px, 4vw, 32px);
  text-align: center;
}

.site-footer a {
  color: var(--primary);
  font-weight: 800;
}

.site-footer a:hover {
  color: var(--primary-dark);
}

@media (max-width: 900px) {
  .upload-panel,
  .filters-grid,
  .summary-grid,
  .type-filter-group {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-bottom: 80px;
  }
}