:root {
  color-scheme: dark;
  --terminal-bg: #000;
  --terminal-fg: #f4f4f4;
  --panel-border: #2b2f36;
  --input-bg: #101318;
  --input-fg: #e9edf2;
  --focus: #6ea8fe;
  --cursor-green: #00ff2a;
}

@font-face {
  font-family: "TerminalDejaVuMono";
  src: url("./DejaVuSansMono.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  background: #14171c;
  color: var(--terminal-fg);
  font-family: "TerminalDejaVuMono", "DejaVu Sans Mono", Consolas, "Liberation Mono", monospace;
}

.terminal-app {
  display: grid;
  grid-template-rows: minmax(0, 1fr) minmax(170px, 32vh) auto;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.terminal-screen {
  min-height: 0;
  overflow: auto;
  background: var(--terminal-bg);
}

.terminal-output {
  width: 100%;
  min-width: 0;
  min-height: 100%;
  margin: 0;
  padding: 10px;
  color: var(--terminal-fg);
  background: var(--terminal-bg);
  font-family: "TerminalDejaVuMono", "DejaVu Sans Mono", Consolas, "Liberation Mono", monospace;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  tab-size: 8;
}

.terminal-wide-char {
  display: inline-block;
  width: 2ch;
  overflow: hidden;
  vertical-align: top;
}

.terminal-wide-char-glyph {
  display: inline-block;
  transform-origin: left center;
  will-change: transform;
}

.terminal-cursor {
  display: inline-block;
  width: 1ch;
  height: 1.1em;
  margin-left: 0;
  background: var(--cursor-color, var(--cursor-green));
  border: 1px solid var(--cursor-color, var(--cursor-green));
  vertical-align: -0.16em;
  animation: terminal-cursor-blink 1s steps(1, end) infinite;
}

@keyframes terminal-cursor-blink {
  0%,
  49% {
    background: var(--cursor-color, var(--cursor-green));
  }

  50%,
  100% {
    background: transparent;
  }
}

.terminal-output:empty::before {
  content: "";
}

.terminal-input-panel {
  min-height: 0;
  border-top: 1px solid var(--panel-border);
  background: var(--input-bg);
}

.terminal-input {
  display: block;
  width: 100%;
  height: 100%;
  resize: none;
  border: 0;
  outline: 0;
  padding: 12px 14px;
  color: var(--input-fg);
  background: var(--input-bg);
  font-family: "TerminalDejaVuMono", "DejaVu Sans Mono", Consolas, "Liberation Mono", monospace;
  font-size: 15px;
  line-height: 1.45;
  letter-spacing: 0;
  white-space: pre;
  overflow: auto;
}

.terminal-input::placeholder {
  color: #828b98;
}

.terminal-input:focus {
  box-shadow: inset 0 0 0 2px var(--focus);
}

/* ── 配置栏 ── */

.terminal-config-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding: 8px 14px;
  border-top: 1px solid var(--panel-border);
  background: #0a0c10;
  font-size: 13px;
  color: #9ba3af;
}

.config-group {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.config-label {
  color: #9ba3af;
}

/* ── 字号滑块 ── */

#fontSize {
  width: 80px;
  accent-color: var(--focus);
}

#fontSizeValue {
  min-width: 32px;
  color: var(--terminal-fg);
}

/* ── 色块 ── */

.swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  vertical-align: -1px;
}

.swatch-white {
  background: var(--terminal-fg);
}

.swatch-green {
  background: var(--cursor-green);
}

/* ── radio / checkbox ── */

.radio-label,
.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  color: var(--terminal-fg);
}

.radio-label input,
.checkbox-label input {
  margin: 0;
  accent-color: var(--focus);
}

/* ── 光标隐藏 ── */

.terminal-cursor.cursor-hidden {
  display: none;
}

@media (max-width: 720px) {
  .terminal-app {
    grid-template-rows: minmax(0, 1fr) minmax(150px, 38vh) auto;
  }

  .terminal-output {
    font-size: 14px;
  }

  .terminal-input {
    font-size: 14px;
  }
}