:root {
  --bg-main: #000;
  --panel-bg: #050505;
  --panel-border: 3px solid #fff;
  --panel-accent: #fff;
  --input-border: 2px solid #fff;
  --text-light: #fff;
  --text-dim: #bfbfbf;
  --button-bg: #fff;
  --button-color: #000;
  font-family: "Press Start 2P", "Space Mono", "Noto Sans JP", monospace;
  color: var(--text-light);
  letter-spacing: 0.18em;
  text-transform: none;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg-main);
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg-main);
  background-repeat: repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 3vw, 2.5rem);
  font-family: inherit;
  color: inherit;
  position: relative;
  overflow-x: hidden;
  image-rendering: pixelated;
}

.bg-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
  image-rendering: pixelated;
}

.bg-layer.bg-grid {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='4' height='4' fill='%23000000'/%3E%3Crect x='0' y='0' width='1' height='1' fill='%23ffffff'/%3E%3C/svg%3E");
  background-repeat: repeat;
}

.console-shell {
  position: relative;
  z-index: 1;
  width: min(1240px, 96vw);
  padding: clamp(1.25rem, 3vw, 2rem);
  border: var(--panel-border);
  border-radius: 0;
  background: var(--panel-bg);
  overflow: hidden;
}

.pulse-bar {
  height: 6px;
  margin-bottom: 1.25rem;
  border-radius: 999px;
  background: var(--panel-accent);
}

.dashboard {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

.panel {
  background: var(--panel-bg);
  border: var(--panel-border);
  border-radius: 2px;
  padding: clamp(1rem, 2vw, 1.4rem);
  position: relative;
  overflow: hidden;
}

.panel-header {
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--panel-accent);
  padding-bottom: 0.45rem;
}

.panel-header h2 {
  margin: 0;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--text-light);
  font-weight: 600;
}

.form-panel {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  height: 100%;
}

.form-panel form {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.input-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.8rem;
}

.mask-simple,
.mask-detail-panel {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.mask-detail-panel {
  display: none;
}

.mask-size-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.mask-label {
  margin: 0;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--text-light);
}

.mask-size-row label {
  font-size: 0.7rem;
}

.mask-layout-toggle {
  padding: 0.55rem 1rem;
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  align-self: flex-start;
  min-width: 140px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.7rem;
  color: var(--text-dim);
}

textarea,
input {
  border-radius: 0;
  border: var(--input-border);
  background: #000;
  color: var(--text-light);
  padding: 0.85rem;
  font-size: 0.8rem;
  font-family: inherit;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: border 0.2s ease, transform 0.2s ease;
}

textarea:focus,
input:focus {
  outline: none;
  border-color: var(--panel-accent);
}

textarea {
  min-height: 120px;
}

.color-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.color-input input[type="color"] {
  height: 2.5rem;
  padding: 0.2rem;
  border-radius: 2px;
  border: 1px solid var(--text-light);
  background: #000;
  cursor: pointer;
}

.pixel-button {
  font-family: inherit;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  padding: 0.9rem 1.6rem;
  border: 3px solid var(--panel-accent);
  color: var(--button-color);
  background: var(--button-bg);
  border-radius: 0;
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.35rem;
  transition: background 0.2s ease, transform 0.15s ease;
}

.pixel-button:hover,
.toggle-button:hover {
  background: #000;
  color: var(--text-light);
}

.pixel-button:active,
.toggle-button:active {
  transform: translateY(2px);
}

.pixel-button:focus-visible,
.toggle-button:focus-visible {
  outline: 3px dashed var(--text-light);
  outline-offset: 4px;
}

.toggle-button {
  font-family: inherit;
  background: #fff;
  border: 2px solid var(--text-light);
  color: var(--button-color);
}

.form-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.reset-button {
  background: #000;
  border-color: var(--text-light);
  color: var(--text-light);
}

.button-glyph {
  font-size: 0.85rem;
}

.hint,
.hint-inline {
  font-size: 0.6rem;
  color: var(--text-dim);
  margin: 0;
  text-transform: none;
  letter-spacing: 0.2em;
}

.hint {
  margin-top: -0.2rem;
}

.error {
  color: #fff;
  font-weight: bold;
  margin-top: 0.5rem;
  letter-spacing: 0.1em;
}

.mask-preview {
  margin-top: 1rem;
  border: 2px solid var(--panel-accent);
  padding: 0.75rem;
  background: #000;
}

.mask-title {
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  margin: 0 0 0.6rem 0;
  color: var(--text-light);
}

.mask-preview pre {
  margin: 0;
  font-family: "Space Mono", monospace;
  font-size: 0.78rem;
  color: var(--text-light);
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.preview-panel {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  height: 100%;
}

.preview-frame {
  padding: 1rem;
  border-radius: 2px;
  border: 3px solid var(--panel-accent);
  background: #000;
}

.preview-panel img {
  width: 100%;
  height: auto;
  border: 3px solid #fff;
  border-radius: 0;
  background: #000;
  image-rendering: pixelated;
  display: block;
}

.stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.stats li {
  flex: 1;
  min-width: 130px;
  border: 2px solid var(--panel-accent);
  background: #010101;
  padding: 0.75rem 0.8rem;
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  margin-bottom: 0.25rem;
}

.stat-value {
  font-size: 0.9rem;
  color: var(--text-light);
  letter-spacing: 0.15em;
}

.preview-placeholder {
  border: 2px dashed var(--panel-accent);
  padding: 1.4rem;
  text-align: center;
  color: var(--text-dim);
  text-transform: none;
  background: #010101;
}

.footnote {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.25em;
  border-top: 2px solid var(--panel-accent);
  padding-top: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footnote a {
  color: var(--text-light);
  text-decoration: underline;
}

.ticker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  align-items: center;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
}

.ticker-label {
  color: var(--text-light);
}

.ticker-value {
  background: #000;
  border: 1px solid var(--panel-accent);
  padding: 0.2rem 0.65rem;
  border-radius: 4px;
  color: var(--text-light);
}

@media (max-width: 1100px) {
  .dashboard {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    padding: 1rem;
  }

  .console-shell {
    padding: 1rem;
  }

  .pixel-button {
    width: 100%;
    justify-content: center;
  }

  .stats {
    flex-direction: column;
  }
}

::selection {
  background: var(--text-light);
  color: #000;
}