:root {
  --bg: #0f172a;
  --bg-soft: #111c34;
  --surface: #ffffff;
  --surface-muted: #e2e8f0;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #dbe4f0;
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top, rgba(79, 70, 229, 0.18), transparent 35%),
    linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
  color: var(--text);
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.auth-shell {
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.25), transparent 32%),
    linear-gradient(180deg, var(--bg) 0%, #1e293b 100%);
  color: #ffffff;
}

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

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.app-content {
  padding: 32px;
}

.hero {
  margin-bottom: 24px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  font-weight: 700;
}

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

.panel {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(219, 228, 240, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.auth-shell .panel {
  background: rgba(15, 23, 42, 0.85);
  border-color: rgba(148, 163, 184, 0.2);
  box-shadow: none;
}

.hero-panel,
.form-panel {
  width: min(100%, 460px);
}

.stats-grid,
.content-grid,
.cards-grid {
  display: grid;
  gap: 20px;
}

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

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

.content-grid-wide {
  grid-template-columns: minmax(320px, 420px) 1fr;
}

.cards-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

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

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

.detail-list {
  display: grid;
  gap: 12px;
  margin: 0;
}

.detail-list div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.detail-list dt {
  color: var(--text-muted);
  font-weight: 700;
}

.check-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  display: grid;
  gap: 10px;
}

.helper-text {
  margin-top: 20px;
  color: #cbd5e1;
}

@media (max-width: 960px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .stats-grid,
  .content-grid,
  .content-grid-wide {
    grid-template-columns: 1fr;
  }

  .app-content {
    padding: 20px;
  }
}