:root {
  --bg: #f7f6f4;
  --fg: #22221f;
  --muted: #6b6a64;
  --card: #ffffff;
  --border: #e3e1dc;
  --accent: #d9642a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

main {
  max-width: 60rem;
  margin: 1.5rem auto;
  padding: 0 1rem;
}

header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

nav {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

nav a { color: var(--fg); text-decoration: none; }
nav a:hover { color: var(--accent); }
nav .brand { font-weight: 700; font-size: 1.2rem; color: var(--accent); }
.logout-form { margin-left: auto; }
button.linklike {
  background: none;
  border: none;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
  padding: 0;
}
button.linklike:hover { color: var(--accent); }

h1 { margin: 0.5rem 0 1rem; }
.muted { color: var(--muted); font-size: 0.9rem; }
.error { color: #a33; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.2rem 1.4rem;
  margin-bottom: 1.2rem;
}
.narrow { max-width: 24rem; margin: 3rem auto; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
}
th, td {
  text-align: left;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--border);
}
th { color: var(--muted); font-weight: 600; font-size: 0.85rem; }
tr:last-child td { border-bottom: none; }

.periods { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.periods a {
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  color: var(--fg);
  background: var(--card);
}
.periods a.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.stats { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 1.2rem; }
.stat {
  flex: 1 1 10rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
}
.stat-label { display: block; color: var(--muted); font-size: 0.8rem; }
.stat-value { font-size: 1.15rem; font-weight: 600; }
.stat-value small { display: block; font-weight: 400; color: var(--muted); font-size: 0.8rem; }

form p { margin: 0.4rem 0; }
label { display: block; font-size: 0.9rem; color: var(--muted); }
input, select {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1.1rem;
  font: inherit;
  cursor: pointer;
  margin-top: 0.6rem;
}
button:hover { filter: brightness(0.92); }