:root {
  --bg: #f5f3ef;
  --panel: #ffffff;
  --text: #1d1d1b;
  --muted: #6e665f;
  --brand: #a5253a;
  --accent: #2c8a46;
  --border: #e1dbd3;
  --shadow: 0 10px 24px rgba(29, 29, 27, 0.05);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Montserrat", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(165, 37, 58, 0.08), transparent 30%),
    linear-gradient(180deg, #f7f4ef 0%, #f1ece5 100%);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.dashboard-content[hidden],
.auth-panel[hidden],
.module-view[hidden] {
  display: none;
}

.module-intro h2 {
  margin: 0 0 8px;
  font-size: 40px;
}

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

.dashboard-content {
  transition: background 180ms ease;
}

.dashboard-content[data-active-route="flow"] {
  background:
    radial-gradient(circle at top left, rgba(165, 37, 58, 0.08), transparent 30%),
    linear-gradient(180deg, #f7f4ef 0%, #f1ece5 100%);
}

.dashboard-content[data-active-route="estimator"] {
  background:
    radial-gradient(circle at top left, rgba(44, 138, 70, 0.08), transparent 32%),
    linear-gradient(180deg, #f4f7f1 0%, #edf3ea 100%);
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  font-weight: 700;
}

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

.product-nav {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.product-nav-button {
  min-width: 160px;
  padding: 12px 18px;
  border: none;
  border-radius: 999px;
  background: transparent;
  text-align: center;
  cursor: pointer;
  color: var(--text);
  font-weight: 700;
}

.product-nav-button-active {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 10px 18px rgba(165, 37, 58, 0.16);
}

.module-intro {
  margin-bottom: 20px;
}

.dashboard-content[data-active-route="flow"] .module-intro {
  border-color: rgba(165, 37, 58, 0.18);
}

.dashboard-content[data-active-route="estimator"] .module-intro {
  border-color: rgba(44, 138, 70, 0.22);
  background: linear-gradient(180deg, rgba(44, 138, 70, 0.08), rgba(255, 255, 255, 0.92));
}

.controls {
  display: flex;
  gap: 12px;
  align-items: end;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.controls label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 600;
}

.controls input,
.controls button,
.secondary-button,
.auth-form input,
.auth-form button {
  min-height: 44px;
  border-radius: 10px;
  padding: 0 14px;
}

.controls input,
.auth-form input,
.secondary-button {
  border: 1px solid var(--border);
  background: var(--panel);
}

.controls button,
.auth-form button {
  background: var(--brand);
  color: #fff;
  border: none;
  cursor: pointer;
}

.secondary-button {
  color: var(--text);
  cursor: pointer;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card,
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.card {
  padding: 20px;
}

.card .label {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.card strong {
  font-size: 34px;
}

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

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

.panel h2 {
  margin: 0;
  font-size: 26px;
}

.auth-panel {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.auth-card {
  width: min(100%, 420px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 16px 38px rgba(29, 29, 27, 0.08);
}

.auth-card h1 {
  margin: 0 0 10px;
}

.auth-card p {
  margin: 0 0 20px;
  color: var(--muted);
}

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

.auth-form label {
  display: grid;
  gap: 8px;
  font-weight: 600;
}

.auth-error {
  margin-top: 14px;
  color: #b42318;
  font-weight: 600;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-size: 14px;
}

.chart-empty {
  color: var(--muted);
  margin: 0;
}

@media (max-width: 720px) {
  .page {
    padding: 24px 14px 32px;
  }

  .shell-header {
    flex-direction: column;
    align-items: stretch;
  }

  .module-intro h2 {
    font-size: 32px;
  }

  .card strong {
    font-size: 28px;
  }

  .product-nav {
    display: grid;
    grid-template-columns: 1fr;
  }
}