*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: system-ui, sans-serif;
  background: #f5f5f5;
  color: #1a1a1a;
  min-height: 100vh;
}

nav {
  background: #1a1a2e;
  color: #fff;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
nav a { color: #ccc; text-decoration: none; }
nav a:hover { color: #fff; }
nav .brand { font-weight: 700; font-size: 1.1rem; color: #fff; }
nav .spacer { flex: 1; }

main { max-width: 800px; margin: 2rem auto; padding: 0 1rem; }

h1 { font-size: 1.6rem; margin-bottom: 1rem; }
h2 { font-size: 1.2rem; margin-bottom: 0.75rem; }

.card {
  background: #fff;
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 1.5rem;
}

.tabs { display: flex; gap: 0; margin-bottom: 1.5rem; }
.tab-btn {
  padding: 0.5rem 1.25rem;
  border: 1px solid #ddd;
  background: #f5f5f5;
  cursor: pointer;
  font-size: 0.95rem;
}
.tab-btn:first-child { border-radius: 6px 0 0 6px; }
.tab-btn:last-child  { border-radius: 0 6px 6px 0; border-left: none; }
.tab-btn.active { background: #1a1a2e; color: #fff; border-color: #1a1a2e; }

label { display: block; font-size: 0.85rem; margin-bottom: 0.25rem; color: #555; }
input[type=text], input[type=email], input[type=password] {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}
input:focus { outline: none; border-color: #1a1a2e; }

button[type=submit], .btn {
  padding: 0.5rem 1.25rem;
  background: #1a1a2e;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.95rem;
}
button[type=submit]:hover, .btn:hover { background: #2d2d5e; }
button[type=submit]:disabled { opacity: 0.6; cursor: not-allowed; }

.error   { color: #c0392b; font-size: 0.875rem; margin-top: 0.5rem; }
.success { color: #27ae60; font-size: 0.875rem; margin-top: 0.5rem; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-box {
  background: #fff;
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.stat-box .value { font-size: 2rem; font-weight: 700; }
.stat-box .label { font-size: 0.8rem; color: #777; margin-top: 0.25rem; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th { text-align: left; padding: 0.5rem 0.75rem; border-bottom: 2px solid #eee; color: #555; }
td { padding: 0.5rem 0.75rem; border-bottom: 1px solid #f0f0f0; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafafa; }
a { color: #2c5cc5; text-decoration: none; }
a:hover { text-decoration: underline; }

.outcome-win  { color: #27ae60; font-weight: 600; }
.outcome-loss { color: #c0392b; font-weight: 600; }
.outcome-draw { color: #e67e22; font-weight: 600; }

.loading { color: #777; padding: 1rem 0; }
.empty   { color: #aaa; font-style: italic; padding: 1rem 0; }