:root {
  --accent: #1a7f5a;
  --bg: #f7f8f7;
  --card: #ffffff;
  --text: #1d2421;
  --muted: #6b756f;
  --border: #e2e6e3;
}

* { box-sizing: border-box; }

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

.site-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 1rem;
  background: var(--accent);
  color: #fff;
}

.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.6);
  background: #fff;
}

.avatar--fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.avatar--fallback::after {
  content: "NF";
  color: var(--accent);
  font-weight: 700;
  font-size: 1.4rem;
}

.site-header h1 { margin: 0; font-size: 1.5rem; }
.subtitle { margin: 0.25rem 0 0; opacity: 0.85; font-size: 0.9rem; }

.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0 1rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.tab {
  padding: 0.75rem 1rem;
  border: none;
  background: none;
  font-size: 1rem;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 3px solid transparent;
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.panel { display: none; }
.panel.active { display: block; }

.panel h2 { margin-top: 0; }

form, article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1.25rem;
}

.form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.teams {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.75rem 0.75rem;
}

legend { font-weight: 600; font-size: 0.9rem; padding: 0 0.25rem; }

input {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.4rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
}

label { font-size: 0.9rem; color: var(--muted); }

button[type="submit"] {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.65rem 1.5rem;
  font-size: 1rem;
  cursor: pointer;
}

.match-list { list-style: none; padding: 0; }

.match-list li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.match-teams { flex: 1; }
.match-score { font-weight: 700; font-size: 1.1rem; white-space: nowrap; }
.match-date { font-size: 0.8rem; color: var(--muted); }

.delete-btn {
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0.25rem;
}

.ranking-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.ranking-table th, .ranking-table td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.ranking-table th { background: #eef2ef; font-size: 0.85rem; }
.ranking-table tr:last-child td { border-bottom: none; }

article h3 { margin-top: 0; }
article ul { margin-bottom: 0; padding-left: 1.25rem; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

footer { text-align: center; padding: 1rem; }

@media (max-width: 560px) {
  .teams { grid-template-columns: 1fr; }
  .site-header h1 { font-size: 1.2rem; }
}