:root {
  --ink: #17212f;
  --muted: #607086;
  --line: #d8e0ea;
  --surface: #ffffff;
  --page: #f5f7fb;
  --teal: #0f766e;
  --blue: #2457d6;
  --amber: #b7791f;
  --focus: rgba(36, 87, 214, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

.hidden {
  display: none !important;
}

.shell {
  min-height: 100vh;
}

.signin-layout {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.signin-panel {
  width: min(100%, 520px);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 18px 48px rgba(23, 33, 47, 0.12);
  padding: clamp(28px, 5vw, 56px);
}

.brand-mark {
  display: block;
  width: 176px;
  height: auto;
  margin: 0 auto 24px;
}

.signin-panel h1,
.portal-header h1,
.section-heading h2,
.transfer-info h2 {
  margin: 0;
  letter-spacing: 0;
}

.signin-panel h1 {
  text-align: center;
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.08;
}

.signin-copy {
  color: var(--muted);
  line-height: 1.6;
  text-align: center;
  margin: 14px 0 30px;
}

.signin-form,
.upload-form {
  display: grid;
  gap: 18px;
}

label span,
.month-picker span {
  display: block;
  color: #334255;
  font-weight: 700;
  margin-bottom: 8px;
}

input,
select {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 0 14px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px var(--focus);
}

.primary-action,
.secondary-action,
.tab,
.table-link {
  border: 0;
  cursor: pointer;
}

.primary-action {
  min-height: 50px;
  border-radius: 8px;
  background: var(--ink);
  color: white;
  font-weight: 800;
}

.primary-action:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.compact-action {
  width: auto;
  min-width: 176px;
  padding: 0 18px;
}

.secondary-action {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 8px;
  background: white;
  color: var(--ink);
  border: 1px solid var(--line);
  font-weight: 700;
}

.form-error,
.status-line {
  min-height: 24px;
  color: #a13b2a;
  margin: 0;
}

.status-line {
  color: var(--teal);
}

.portal-layout {
  min-height: 100vh;
}

.portal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 24px clamp(18px, 5vw, 56px);
  background: white;
  border-bottom: 1px solid var(--line);
}

.portal-header > div {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-mark {
  width: 54px;
  height: auto;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.portal-header h1 {
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.1;
}

.tabs {
  display: flex;
  gap: 4px;
  padding: 18px clamp(18px, 5vw, 56px) 0;
  border-bottom: 1px solid var(--line);
  background: white;
}

.tab {
  min-width: 112px;
  min-height: 44px;
  padding: 0 18px;
  background: transparent;
  color: var(--muted);
  border-bottom: 3px solid transparent;
  font-weight: 800;
}

.tab.active {
  color: var(--ink);
  border-bottom-color: var(--blue);
}

.tab-panel {
  padding: clamp(22px, 5vw, 56px);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 24px;
  align-items: start;
}

.upload-section,
.transfer-info {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(22px, 4vw, 34px);
}

.section-heading {
  margin-bottom: 16px;
}

.section-heading h2,
.transfer-info h2 {
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.15;
}

.body-copy,
.transfer-info p {
  color: var(--muted);
  line-height: 1.65;
  margin: 0 0 24px;
}

.text-link,
.table-link {
  color: var(--blue);
  font-weight: 800;
}

.text-link {
  display: inline-block;
  margin-top: 8px;
}

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

.billing-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 8px 0 24px;
}

.billing-value {
  display: block;
  color: var(--ink);
  font-size: 22px;
}

.billing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 24px;
  align-items: start;
}

.metric-panel {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.metric-panel h3 {
  margin: 0 0 14px;
  font-size: 18px;
}

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

.metric-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 30px;
  color: var(--muted);
}

.metric-row strong {
  color: var(--ink);
  font-size: 18px;
}

.table-wrap {
  overflow-x: auto;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th,
td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

th {
  color: #334255;
  font-size: 13px;
}

.table-link {
  background: transparent;
  padding: 0;
}

.action-cell {
  display: flex;
  gap: 14px;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: #e8f5f2;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
}

.reports-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
}

.month-picker {
  width: min(100%, 220px);
}

@media (max-width: 900px) {
  .content-grid,
  .metrics-grid,
  .billing-summary,
  .billing-grid {
    grid-template-columns: 1fr;
  }

  .portal-header,
  .reports-header {
    align-items: stretch;
    flex-direction: column;
  }

  .tabs {
    overflow-x: auto;
  }
}

@media (max-width: 520px) {
  .signin-layout {
    padding: 0;
    place-items: stretch;
  }

  .signin-panel {
    min-height: 100vh;
    border: 0;
    display: grid;
    align-content: center;
  }

  .tab {
    min-width: 96px;
  }
}