* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
  "Microsoft YaHei", sans-serif; background: #0e1a16; color: #e6efe9; }
a { color: #ffd166; text-decoration: none; }

/* ===== Login ===== */
.page-login { min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(1200px 800px at 50% -20%, #1a3a2a 0%, #0e1a16 60%); }
.login-box { width: 320px; padding: 32px 28px; background: #16241e; border: 1px solid #1f3a2c;
  border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,.45); }
.login-box .brand { font-size: 22px; font-weight: 700; text-align: center; }
.login-box .hint { color: #8baa9a; text-align: center; margin-bottom: 18px; font-size: 13px; }
.login-box form { display: flex; flex-direction: column; gap: 10px; }
.login-box input { background: #0e1a16; border: 1px solid #2c4a3a; color: #fff; padding: 10px 12px;
  border-radius: 8px; outline: none; }
.login-box input:focus { border-color: #ffd166; }
.login-box button { background: #ffd166; color: #1a1a1a; border: 0; padding: 11px;
  border-radius: 8px; font-weight: 700; cursor: pointer; }
.login-box button:hover { filter: brightness(1.05); }
.login-box .footer { margin-top: 16px; color: #6b8a7a; font-size: 12px; text-align: center; }
.err { color: #ff7a7a; font-size: 13px; min-height: 18px; }

/* ===== Admin ===== */
.page-admin { padding: 0; }
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 14px 24px;
  background: #16241e; border-bottom: 1px solid #1f3a2c; }
.topbar .brand { font-weight: 700; }
.btn-link { color: #ffd166; padding: 6px 10px; border-radius: 6px; }
.btn-link:hover { background: #1f3a2c; }
.panel { max-width: 1200px; margin: 24px auto; padding: 0 24px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.btn { padding: 8px 14px; border: 1px solid #2c4a3a; background: #16241e; color: #e6efe9;
  border-radius: 8px; cursor: pointer; }
.btn.primary { background: #ffd166; color: #1a1a1a; border-color: #ffd166; font-weight: 700; }
.btn.danger { background: #6b1f1f; border-color: #8a2a2a; color: #ffd2d2; }
.btn:hover { filter: brightness(1.06); }
table.users { width: 100%; border-collapse: collapse; background: #16241e; border-radius: 10px;
  overflow: hidden; }
table.users th, table.users td { padding: 10px 12px; border-bottom: 1px solid #1f3a2c; text-align: left; font-size: 14px; }
table.users th { background: #1a3022; color: #cfe; }
table.users tr:last-child td { border-bottom: 0; }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.pill.on { background: #1f4a2f; color: #b6e7c2; }
.pill.off { background: #4a1f1f; color: #e7b6b6; }
dialog { background: #16241e; color: #e6efe9; border: 1px solid #2c4a3a; border-radius: 12px;
  width: 360px; padding: 0; }
dialog::backdrop { background: rgba(0,0,0,.55); }
#userForm { padding: 18px 22px; }
#userForm h3 { margin: 0 0 14px; }
#userForm label { display: block; margin-bottom: 10px; font-size: 13px; color: #b9d2c5; }
#userForm input[type=text], #userForm input[type=password], #userForm input[type=number],
#userForm input:not([type]) {
  width: 100%; margin-top: 4px; padding: 8px 10px; background: #0e1a16; color: #fff;
  border: 1px solid #2c4a3a; border-radius: 6px;
}
#userForm label.cb { display: flex; gap: 6px; align-items: center; }
.dlg-foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }

/* ===== Lobby (placeholder for D2) ===== */
.lobby { max-width: 720px; margin: 60px auto; padding: 0 24px; }
.lobby h1 { margin-top: 0; }
.lobby .row { display: flex; gap: 8px; align-items: center; margin: 14px 0; }
.lobby input.code { width: 120px; font-size: 24px; text-align: center; letter-spacing: 8px;
  padding: 10px; background: #0e1a16; border: 1px solid #2c4a3a; color: #ffd166; border-radius: 8px; }
.lobby .me { color: #8baa9a; font-size: 13px; }