:root {
  --bg0: #faf9f6;
  --bg1: #f5f3ee;
  --card: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --navy: #263238;
  --teal: #009688;
  --ok: #16a34a;
  --bad: #dc2626;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --shadow2: 0 6px 18px rgba(0, 0, 0, 0.12);
  --r2xl: 18px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg0: #0b1220;
    --bg1: #0f172a;
    --card: #111c33;
    --ink: #e5e7eb;
    --muted: #a1a1aa;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, var(--bg0), var(--bg1));
}

.app {
  min-height: 100%;
  display: flex;
  justify-content: center;
  padding: clamp(12px, 2.2vw, 22px);
}

.shell {
  width: min(1200px, 100%);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: var(--card);
  border: 2px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--r2xl);
  box-shadow: var(--shadow2);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--navy), rgba(0, 150, 136, 0.95));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 950;
  font-size: 20px;
}

.titleblock .title {
  font-weight: 950;
  font-size: 16px;
}

.titleblock .sub {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.main {
  background: var(--card);
  border: 2px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--r2xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  padding: 20px;
}

.card {
  background: var(--card);
  border: 2px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--r2xl);
  box-shadow: var(--shadow2);
  padding: 14px;
}

.card h1,
.card h2 {
  margin: 0 0 8px 0;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.35;
  font-size: 14px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.stat {
  text-align: center;
  padding: 10px;
  background: rgba(0, 0, 0, 0.04);
  border-radius: 12px;
}

.stat strong {
  display: block;
  font-size: 24px;
  color: var(--teal);
}

.stat small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

.btn {
  border: 0;
  cursor: pointer;
  font-weight: 900;
  padding: 10px 12px;
  border-radius: 14px;
  background: var(--navy);
  color: #fff;
  box-shadow: var(--shadow2);
  transition: transform 150ms ease, filter 150ms ease;
}

.btn:hover {
  filter: brightness(1.05);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0px) scale(0.98);
}

.btn.teal {
  background: var(--teal);
}

.btn.secondary {
  background: rgba(0, 0, 0, 0.04);
  color: var(--ink);
  border: 2px solid rgba(0, 0, 0, 0.08);
  box-shadow: none;
}

.btn.small {
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 12.5px;
}

.footer {
  padding: 10px 4px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

@media (max-width: 600px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .card {
    padding: 12px;
  }
}