.xakep-page {
  --xk-black: #000000;
  --xk-red-dark: #aa0000;
  --xk-gray: #aaaaaa;
  --xk-gray-dark: #555555;
  --xk-green: #55ff55;
  --xk-cyan: #55ffff;
  --xk-red: #ff5555;
  --xk-yellow: #ffff55;
  --xk-white: #ffffff;
  --xk-blue: #0000aa;
  background: var(--xk-black);
  color: var(--xk-gray);
  min-height: 100%;
  padding: 12px 0 16px;
  box-sizing: border-box;
}

.xakep-screen {
  width: 78ch;
  margin: 0 auto;
  font-family: 'Lucida Console', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.3;
  white-space: pre-wrap;
  word-break: normal;
  color: var(--xk-gray);
  background: var(--xk-black);
}

.xakep-page a {
  color: var(--xk-cyan);
  text-decoration: underline;
  cursor: pointer;
}

.xakep-page a:hover {
  background: var(--xk-cyan);
  color: var(--xk-black);
  text-decoration: none;
}

.xakep-logo {
  display: inline-block;
  line-height: 1;
  vertical-align: bottom;
}

.xakep-c4 { color: var(--xk-red-dark); }
.xakep-c7 { color: var(--xk-gray); }
.xakep-c8 { color: var(--xk-gray-dark); }
.xakep-c10 { color: var(--xk-green); }
.xakep-c11 { color: var(--xk-cyan); }
.xakep-c12 { color: var(--xk-red); }
.xakep-c14 { color: var(--xk-yellow); }
.xakep-c15 { color: var(--xk-white); }

.xakep-logo .xakep-c4 {
  color: var(--xk-red);
}

.xakep-title {
  font-weight: bold;
  font-size: 15px;
}

.xakep-page a.xakep-menu {
  color: var(--xk-gray);
  text-decoration: none;
  padding: 0 2px;
}

.xakep-page a.xakep-menu u {
  color: var(--xk-yellow);
  text-decoration: none;
}

.xakep-page a.xakep-menu:hover,
.xakep-page a.xakep-menu.is-active {
  background: var(--xk-gray);
  color: var(--xk-black);
}

.xakep-page a.xakep-menu.is-active u,
.xakep-page a.xakep-menu:hover u {
  color: var(--xk-blue);
}

.xakep-btn {
  font-family: 'Lucida Console', 'Courier New', monospace;
  font-size: 12px;
  background: var(--xk-gray);
  color: var(--xk-black);
  border: 0;
  border-right: 2px solid var(--xk-gray-dark);
  border-bottom: 2px solid var(--xk-gray-dark);
  padding: 1px 8px;
  cursor: pointer;
}

.xakep-btn:hover {
  background: var(--xk-white);
}

.xakep-btn:active {
  border: 0;
  border-left: 2px solid var(--xk-gray-dark);
  border-top: 2px solid var(--xk-gray-dark);
}

.xakep-btn:focus-visible,
.xakep-input:focus-visible {
  outline: 1px solid var(--xk-yellow);
  outline-offset: 1px;
}

.xakep-page .xakep-input {
  font-family: 'Lucida Console', 'Courier New', monospace;
  font-size: 12px;
  background: var(--xk-blue);
  color: var(--xk-yellow);
  border: 1px solid var(--xk-gray);
  padding: 1px 4px;
}

.xakep-area {
  width: 74ch;
  resize: vertical;
  vertical-align: top;
}

.xakep-mail-form {
  display: inline;
  margin: 0;
}

.xakep-kg {
  display: inline-block;
  width: 46ch;
  margin: 4px 0 8px 14ch;
  background: var(--xk-gray);
  color: var(--xk-black);
  border: 2px solid var(--xk-white);
  border-right-color: var(--xk-gray-dark);
  border-bottom-color: var(--xk-gray-dark);
  white-space: normal;
}

.xakep-kg-title {
  background: var(--xk-blue);
  color: var(--xk-white);
  padding: 1px 6px;
  font-weight: bold;
}

.xakep-kg-art {
  white-space: pre;
  background: var(--xk-black);
  color: var(--xk-red);
  padding: 6px 8px;
  line-height: 1;
  margin: 4px;
}

.xakep-kg-form {
  border-collapse: collapse;
  margin: 2px 6px;
}

.xakep-kg-form td {
  padding: 2px 4px;
}

.xakep-kg-form .xakep-input {
  width: 28ch;
}

.xakep-key {
  font-weight: bold;
  color: var(--xk-green);
}

.xakep-kg-btns {
  padding: 4px 10px 6px;
}

.xakep-kg-scroll {
  background: var(--xk-black);
  color: var(--xk-cyan);
  margin: 0 4px 4px;
  padding: 2px 6px;
  overflow: hidden;
  white-space: nowrap;
}

.xakep-wrap {
  white-space: pre-wrap;
}

.xakep-ring {
  margin-top: 10px;
}