:root {
  --bg: #0f1419;
  --card: #1a2129;
  --fg: #e6edf3;
  --muted: #8b97a3;
  --accent: #f5a623;
  --neg: #ef5350;
  --pos: #66bb6a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}

.hidden { display: none !important; }

h1 { font-size: 1.4rem; margin: 0; }
h2 { font-size: 1.1rem; margin: 0; }

/* Login */
#login-view.card {
  max-width: 340px;
  margin: 12vh auto;
  background: var(--card);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
}
#login-form { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.5rem; }
input {
  padding: 0.7rem;
  border-radius: 8px;
  border: 1px solid #2c353f;
  background: #0f1419;
  color: var(--fg);
  font-size: 1rem;
}
button[type="submit"] {
  padding: 0.7rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #1a1a1a;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
}
.error { color: var(--neg); font-size: 0.9rem; margin: 0; }

/* Dashboard */
main { max-width: 920px; margin: 0 auto; padding: 1.5rem; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.link {
  background: none; border: none; color: var(--muted);
  cursor: pointer; font-size: 1rem;
}
.link:hover { color: var(--fg); }

/* Year-to-date banner */
.banner {
  background: linear-gradient(135deg, #1a2129, #232f3b);
  border: 1px solid #2c353f;
  border-radius: 12px;
  padding: 1rem 1.3rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.banner-title { color: var(--muted); font-size: 0.9rem; }
.banner-body { font-size: 1.15rem; }
.banner-body strong { color: var(--accent); }
.banner-body .value { font-size: 1.15rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; }
.stat {
  background: var(--card);
  border-radius: 12px;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.stat .label { color: var(--muted); font-size: 0.85rem; }
.stat .value { font-size: 1.6rem; font-weight: 600; }
.value.neg { color: var(--neg); }
.value.pos { color: var(--pos); }

.chart-wrap { background: var(--card); border-radius: 12px; padding: 1.2rem; margin-top: 1.5rem; }
.chart-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.chart-header .link { font-size: 1.6rem; }
.chart-header .spacer { flex: 1; }

#month-picker {
  padding: 0.4rem 0.6rem;
  font-size: 1rem;
  color-scheme: dark;
  min-width: 150px;
}

.chart-toggle { display: inline-flex; border: 1px solid #2c353f; border-radius: 8px; overflow: hidden; }
.chart-toggle button {
  background: #0f1419;
  color: var(--muted);
  border: none;
  padding: 0.4rem 0.9rem;
  cursor: pointer;
  font-size: 0.9rem;
}
.chart-toggle button.active { background: var(--accent); color: #1a1a1a; font-weight: 600; }