:root {
  --bg: #161512;
  --bg-panel: #262421;
  --bg-elev: #302e2b;
  --bg-row-hover: #37352f;
  --border: #3d3a35;
  --text: #e8e6e3;
  --text-dim: #a09c94;
  --accent: #7fa650;
  --accent-hover: #8fb95a;
  --win: #7fa650;
  --loss: #d64f4f;
  --draw: #b9a44a;
  --warn-bg: #3a2320;
  --warn-border: #7a3b34;
  --white-badge: #eeeee6;
  --black-badge: #4a4744;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

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

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

@media (max-width: 700px) {
  .app { padding: 14px 12px 40px; }
  .app-header h1 { font-size: 22px; }
  .top-nav { flex-wrap: wrap; }
}

.top-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}
.nav-link {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-panel);
}
.nav-link:hover { color: var(--text); border-color: var(--accent); }
.nav-link.active { color: #12210a; background: var(--accent); border-color: var(--accent); }

.app-header h1 {
  margin: 0 0 6px;
  font-size: 28px;
  letter-spacing: 0.2px;
}

.subtitle {
  margin: 0 0 22px;
  color: var(--text-dim);
  max-width: 720px;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.saved-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.saved-bar label {
  font-size: 12.5px;
  color: var(--text-dim);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.saved-bar select { width: auto; min-width: 220px; }

.storage-banner {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  line-height: 1.45;
}
.storage-banner.mode-disk {
  background: rgba(127, 166, 80, 0.12);
  border: 1px solid rgba(127, 166, 80, 0.5);
  color: var(--accent-hover);
}
.storage-banner.mode-local {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  color: #f0c9c2;
}
.storage-banner code {
  background: rgba(0, 0, 0, 0.35);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12.5px;
}

.btn-secondary {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.btn-secondary:hover:not(:disabled) { border-color: var(--accent); }
.btn-secondary:disabled { opacity: 0.45; cursor: not-allowed; }

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  align-items: end;
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field-user { grid-column: span 2; }

.field label {
  font-size: 12.5px;
  color: var(--text-dim);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

input[type="text"],
input[type="number"],
input[type="password"],
input[type="search"],
select {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(127, 166, 80, 0.18);
}

.field-actions { justify-content: end; }

.btn-primary {
  background: var(--accent);
  color: #12210a;
  border: none;
  border-radius: 8px;
  padding: 11px 18px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
  width: 100%;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.advanced { margin-top: 14px; border-top: 1px solid var(--border); padding-top: 10px; }
.advanced summary { cursor: pointer; color: var(--text-dim); font-size: 14px; }
.advanced-body { margin-top: 12px; display: flex; flex-direction: column; gap: 12px; }
.field-token { max-width: 480px; }

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-dim);
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}
.checkbox input { width: auto; }

.status {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.status.error { border-color: var(--warn-border); background: var(--warn-bg); }
.status.error .spinner { display: none; }

.spinner {
  width: 18px; height: 18px;
  border: 3px solid rgba(255,255,255,0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

.summary {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.stat-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.stat-card .stat-value { font-size: 24px; font-weight: 700; }
.stat-card .stat-label { color: var(--text-dim); font-size: 13px; margin-top: 2px; }
.stat-value.win { color: var(--win); }
.stat-value.loss { color: var(--loss); }
.stat-value.draw { color: var(--draw); }

.results { margin-top: 22px; }
.results-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.results-toolbar input[type="search"] { max-width: 320px; }
.results-count { color: var(--text-dim); font-size: 14px; margin-left: auto; }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
thead th {
  background: var(--bg-elev);
  text-align: right;
  padding: 11px 14px;
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  position: sticky;
  top: 0;
}
thead th.left { text-align: left; }
thead th:hover { color: var(--text); }
thead th.sorted-asc::after { content: " ▲"; font-size: 10px; }
thead th.sorted-desc::after { content: " ▼"; font-size: 10px; }

tbody td { padding: 10px 14px; text-align: right; border-top: 1px solid var(--border); }
tbody td.left { text-align: left; }
tbody tr:hover { background: var(--bg-row-hover); }
tbody tr.weak { background: var(--warn-bg); }
tbody tr.weak:hover { background: #472a26; }

.opening-moves { font-family: "Consolas", "SF Mono", ui-monospace, monospace; font-size: 13.5px; }
.expand-row td { background: var(--bg); padding: 0; }
.games-list {
  padding: 12px 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.game-link {
  font-size: 13px;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  text-decoration: none;
}
.game-link:hover { color: var(--text); border-color: var(--accent); }
.game-link.g-win { border-left: 3px solid var(--win); }
.game-link.g-loss { border-left: 3px solid var(--loss); }
.game-link.g-draw { border-left: 3px solid var(--draw); }

.badge {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
}
.badge.white { background: var(--white-badge); color: #1b1b1b; }
.badge.black { background: var(--black-badge); color: #f2f2f2; }

.bar {
  position: relative;
  display: inline-block;
  min-width: 46px;
  text-align: right;
}
.flag {
  font-size: 11px;
  color: var(--loss);
  font-weight: 700;
  margin-left: 6px;
}
.expand-toggle {
  cursor: pointer;
  color: var(--text-dim);
  margin-right: 8px;
  display: inline-block;
  width: 12px;
}
.muted { color: var(--text-dim); }

.app-footer {
  margin-top: 34px;
  color: var(--text-dim);
  font-size: 13px;
  text-align: center;
}
.app-footer a { color: var(--accent); text-decoration: none; }
.app-footer a:hover { text-decoration: underline; }