:root {
  --bg-0: #0e0f1a; --bg-1: #161828; --bg-2: #1f2136; --nav-bg: #0c0d17;
  --border: #2a2f45; --text: #dcdeea; --text-hi: #f4f5fb; --text-lo: #a1a6b8;
  --text-mute: #6b7089; --accent: #8b5cf6; --green: #22c55e; --gold: #f59e0b;
  --card-radius: 8px; --font: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font); background: var(--bg-0); color: var(--text); min-height: 100vh; }
a { color: var(--text-hi); text-decoration: none; }
a:hover { color: var(--accent); }

nav {
  background: var(--nav-bg); padding: 0 16px; height: 48px;
  display: flex; align-items: center; border-bottom: 1px solid var(--border);
  gap: 2px; position: sticky; top: 0; z-index: 100;
}
nav .brand {
  font-size: 19px; font-weight: 800; color: var(--text-hi);
  margin-right: 16px; letter-spacing: -0.3px;
  display: flex; align-items: center; gap: 2px;
}
nav .brand .omega { color: var(--accent); }
nav .nav-link {
  color: var(--text-lo); padding: 6px 10px; border-radius: 6px;
  font-size: 13px; transition: all 0.15s; white-space: nowrap;
  display: flex; align-items: center; gap: 5px; font-family: var(--font); cursor: pointer;
  background: none; border: none; line-height: 1;
}
nav .nav-link svg { flex-shrink: 0; display: block; }
nav .nav-link:hover, nav .nav-link.active { color: var(--text-hi); background: var(--bg-2); }
nav .nav-right { margin-left: auto; display: flex; align-items: center; gap: 4px; }

nav .more-wrap { position: relative; }
nav .more-btn { gap: 4px; }
nav .more-menu {
  display: none; position: absolute; top: 100%; left: 0; margin-top: 4px;
  background: var(--bg-1); border: 1px solid var(--border); border-radius: 8px;
  min-width: 180px; padding: 6px; z-index: 200; box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
nav .more-menu.open { display: block; }
nav .more-menu a {
  display: flex; align-items: center; gap: 8px; padding: 7px 10px;
  color: var(--text-lo); font-size: 13px; border-radius: 6px; transition: all 0.15s;
}
nav .more-menu a svg { flex-shrink: 0; display: block; }
nav .more-menu a:hover, nav .more-menu a.active { color: var(--text-hi); background: var(--bg-2); }
nav .more-sep { height: 1px; background: var(--border); margin: 4px 8px; }

nav .lang-wrap { position: relative; }
nav .lang-btn {
  background: none; border: none; color: var(--text-lo); cursor: pointer;
  padding: 6px; border-radius: 50%; display: flex; align-items: center;
  justify-content: center; transition: all 0.15s;
}
nav .lang-btn:hover { color: var(--text-hi); background: var(--bg-2); }
nav .lang-btn svg { display: block; }
nav .lang-menu {
  display: none; position: absolute; top: 100%; right: 0; margin-top: 4px;
  background: var(--bg-1); border: 1px solid var(--border); border-radius: 8px;
  min-width: 160px; padding: 6px; z-index: 200; box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
nav .lang-menu.open { display: block; }
nav .lang-item {
  width: 100%; display: flex; align-items: center; gap: 8px; padding: 7px 10px;
  color: var(--text-lo); font-size: 13px; border-radius: 6px; transition: all 0.15s;
  background: none; border: none; cursor: pointer; font-family: var(--font); text-align: left;
}
nav .lang-item:hover { color: var(--text-hi); background: var(--bg-2); }
nav .lang-item svg { flex-shrink: 0; display: block; }
nav .lang-item .lang-name { flex: 1; }
nav .lang-item .lang-check { margin-left: auto; color: var(--accent); }

nav .login-btn {
  display: flex; align-items: center; gap: 5px;
  background: var(--bg-2); border: 1px solid var(--border); color: var(--text-lo);
  padding: 5px 12px; border-radius: 6px; cursor: pointer; font-size: 13px;
  transition: all 0.15s; font-family: var(--font); line-height: 1;
}
nav .login-btn svg { flex-shrink: 0; display: block; }
nav .login-btn:hover { background: var(--border); color: var(--text-hi); }

nav .nav-user { color: var(--text-lo); font-size: 13px; display: flex; align-items: center; gap: 8px; }
nav .nav-user .avatar { width: 24px; height: 24px; border-radius: 50%; }
nav .nav-user .name { color: var(--accent); font-weight: 600; cursor: pointer; }

@media (max-width: 768px) {
  nav { padding: 0 10px; gap: 1px; overflow-x: auto; }
  nav .brand { font-size: 16px; margin-right: 10px; }
  nav .nav-link { padding: 5px 8px; font-size: 12px; }
}