:root {
  --bg: #edf3f6;
  --bg-strong: linear-gradient(160deg, #f6fafc 0%, #e4edf3 48%, #dfe8ef 100%);
  --sidebar: linear-gradient(180deg, #112436 0%, #183a58 55%, #204d70 100%);
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: rgba(255, 255, 255, 0.98);
  --line: rgba(17, 36, 54, 0.12);
  --text: #112436;
  --muted: #5f7386;
  --muted-light: rgba(240, 246, 250, 0.78);
  --brand: #0d4f7d;
  --brand-strong: #093b5d;
  --accent: #b4563c;
  --success: #266c54;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 20px 48px rgba(17, 36, 54, 0.12);
  --font-body: "Aptos", "Trebuchet MS", sans-serif;
  --font-display: "Cambria", "Georgia", serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-strong);
  color: var(--text);
  font-family: var(--font-body);
}

a,
button,
input,
select {
  font: inherit;
}

a {
  color: var(--brand-strong);
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
}

input,
select {
  width: 100%;
  min-height: 42px;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-strong);
}

button {
  cursor: pointer;
}

.site-shell {
  display: grid;
  grid-template-columns: minmax(260px, 320px) 1fr;
  min-height: 100vh;
}

.site-sidebar {
  display: grid;
  align-content: start;
  gap: 1.2rem;
  padding: 1.6rem;
  background: var(--sidebar);
  color: #f3f8fb;
}

.site-main {
  padding: 1.8rem;
}

.brand-panel,
.nav-panel,
.sidebar-panel,
.panel,
.metric-card,
.hero-panel,
.result-card,
.banner,
.form-card {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.brand-panel,
.nav-panel,
.sidebar-panel {
  padding: 1.15rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-panel h1,
.page-header h2,
.hero-panel h3 {
  margin: 0.2rem 0 0.35rem;
  font-family: var(--font-display);
}

.nav-panel {
  display: grid;
  gap: 0.45rem;
}

.nav-panel a,
.secondary-link,
.primary-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0.75rem 0.95rem;
  border-radius: 999px;
  text-decoration: none;
}

.nav-panel a {
  color: #f3f8fb;
}

.nav-panel a[aria-current="page"],
.nav-panel a:hover {
  background: rgba(255, 255, 255, 0.14);
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel,
.metric-card,
.hero-panel,
.banner,
.form-card {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.55);
}

.panel,
.hero-panel {
  padding: 1.2rem;
}

.hero-panel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: linear-gradient(150deg, rgba(13, 79, 125, 0.95) 0%, rgba(27, 72, 108, 0.92) 60%, rgba(180, 86, 60, 0.18) 100%);
  color: #f6fbff;
}

.hero-panel p {
  margin: 0;
}

.hero-actions,
.chip-row,
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.primary-link,
.primary-button {
  background: var(--brand);
  color: #fff;
  border: none;
}

.secondary-link,
.secondary-button {
  background: rgba(255, 255, 255, 0.12);
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.primary-button,
.secondary-button {
  min-height: 42px;
  padding: 0.7rem 1rem;
  border-radius: 999px;
}

.full-width {
  width: 100%;
}

.content-stack,
.stack-md,
.stack-sm {
  display: grid;
}

.content-stack,
.stack-md {
  gap: 1rem;
}

.stack-sm {
  gap: 0.6rem;
}

.metrics-grid,
.panel-grid,
.form-grid {
  display: grid;
  gap: 1rem;
}

.metrics-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

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

.metric-card,
.form-card {
  padding: 1rem;
}

.metric-card strong {
  display: block;
  margin-top: 0.4rem;
  font-size: 1.8rem;
  font-family: var(--font-display);
}

.metric-label,
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--muted);
}

.muted {
  color: var(--muted);
}

.muted-light {
  color: var(--muted-light);
}

.section-heading {
  margin-bottom: 0.85rem;
}

.section-heading h3,
.form-card h4 {
  margin: 0 0 0.25rem;
}

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

.data-table th,
.data-table td {
  padding: 0.8rem 0.6rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.data-table th {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.result-card {
  padding: 0.85rem 0.95rem;
  background: rgba(13, 79, 125, 0.05);
  border: 1px solid rgba(13, 79, 125, 0.08);
}

.empty-state {
  padding: 1.1rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.45);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
}

.banner {
  padding: 0.8rem 1rem;
  background: #fff1dd;
  color: #6b4b12;
  border: 1px solid rgba(181, 124, 29, 0.22);
}

.narrow-panel {
  max-width: 560px;
}

@media (max-width: 1080px) {
  .site-shell {
    grid-template-columns: 1fr;
  }

  .metrics-grid,
  .panel-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-main,
  .site-sidebar {
    padding: 1.1rem;
  }

  .page-header,
  .hero-panel {
    flex-direction: column;
    align-items: flex-start;
  }
}