/* Highlight for codeword in signal-output */
.codeword-highlight {
  color: #e91e63;
  font-weight: bold;
}
:root {
  --bg-deep: #07100d;
  --bg-mid: #0e1e19;
  --panel: #142621;
  --panel-edge: #2f4f45;
  --ink-main: #d7e3d7;
  --ink-muted: #8fa298;
  --accent-hot: #f6b84a;
  --accent-signal: #7cffd0;
  --accent-danger: #ec6f4f;
  --glow: rgba(124, 255, 208, 0.25);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans Condensed", sans-serif;
  color: var(--ink-main);
  background: radial-gradient(circle at 20% 0%, #163128 0%, var(--bg-deep) 40%),
    linear-gradient(160deg, #050a08, #0b1a14);
  min-height: 100vh;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.28;
  pointer-events: none;
}

.app-shell {
  position: relative;
  z-index: 1;
  max-width: 1500px;
  margin: 0 auto;
  padding: 16px;
}

.panel {
  background: linear-gradient(160deg, rgba(20, 38, 33, 0.95), rgba(12, 24, 20, 0.95));
  border: 1px solid var(--panel-edge);
  border-radius: 12px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.brand-title {
  margin: 0;
  font-family: "Space Mono", monospace;
  font-size: clamp(1.2rem, 2.1vw, 2rem);
  letter-spacing: 0.03em;
}

.signal-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.topbar-select {
  min-width: 112px;
  border: 1px solid #4f6f64;
  border-radius: 8px;
  color: var(--ink-main);
  background: linear-gradient(180deg, #1e3a30, #12231d);
  font-family: "Space Mono", monospace;
  padding: 6px 30px 6px 10px;
  cursor: pointer;
}

.topbar-select:hover,
.topbar-select:focus {
  box-shadow: 0 0 0 2px var(--glow);
  outline: none;
}

.topbar-select option {
  color: #d7e3d7;
  background: #12231d;
}

.main-layout {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  grid-template-areas:
    "signal control";
  gap: 14px;
}

.signal-zone {
  grid-area: signal;
}

.control-zone {
  grid-area: control;
}

.signal-zone,
.control-zone {
  padding: 12px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.section-head h2 {
  margin: 0;
  font-size: 1.08rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#signal-canvas {
  width: 100%;
  aspect-ratio: 2 / 1;
  border-radius: 10px;
  border: 1px solid #35584d;
  background: #030807;
  box-shadow: inset 0 0 22px rgba(0, 0, 0, 0.55);
}

meter,
progress {
  accent-color: var(--accent-signal);
}

.clarity-text {
  margin-top: 8px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.clarity-text strong {
  font-family: "Space Mono", monospace;
  font-size: 1.2rem;
  color: var(--accent-signal);
}

.lock-led-panel {
  margin-top: 8px;
  padding: 8px;
  border: 1px solid #415f54;
  border-radius: 8px;
  background: rgba(6, 12, 10, 0.72);
  display: grid;
  gap: 6px;
}

.lock-led-row {
  display: grid;
  grid-template-columns: 118px 1fr auto;
  gap: 8px;
  align-items: center;
  font-size: 0.78rem;
}

.lock-led-row span {
  color: #cad9d1;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.lock-led-row strong {
  font-family: "Space Mono", monospace;
  color: #cbffe8;
  min-width: 42px;
  text-align: right;
}

.lock-leds {
  height: 14px;
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  gap: 3px;
  padding: 2px;
  border: 1px solid #4a695e;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(12, 24, 20, 0.95), rgba(5, 9, 8, 0.95));
}

.lock-led {
  border-radius: 999px;
  background: #29342f;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.32);
  opacity: 0.22;
  transition: opacity 120ms linear, background-color 120ms linear, box-shadow 120ms linear;
}

.lock-led.on {
  background: #82f1c7;
  opacity: 1;
  box-shadow: 0 0 9px rgba(124, 255, 208, 0.5), inset 0 0 3px rgba(217, 255, 240, 0.65);
}

.lock-led.warn.on {
  background: #f3c66f;
  box-shadow: 0 0 8px rgba(243, 198, 111, 0.5), inset 0 0 2px rgba(255, 240, 210, 0.6);
}

.visual-debug {
  margin-top: 10px;
  padding: 8px 10px;
  border: 1px solid #3f5d53;
  border-radius: 8px;
  background: rgba(7, 15, 12, 0.72);
}

.visual-debug-title {
  margin: 0 0 6px;
  font-family: "Space Mono", monospace;
  font-size: 0.78rem;
  color: #d1e7de;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.visual-debug-grid {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: 6px 10px;
  align-items: baseline;
  font-size: 0.82rem;
}

.visual-debug-grid strong {
  font-family: "Space Mono", monospace;
  color: #9bf9d2;
}

.output-zone-inline {
  margin-top: 12px;
  padding: 12px;
  border: 1px solid #35584d;
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(8, 15, 12, 0.88), rgba(6, 11, 9, 0.92));
}

.control-group {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 10px;
  background: rgba(7, 14, 11, 0.6);
}

.group-title {
  margin: 0 0 8px;
  font-family: "Space Mono", monospace;
  color: var(--accent-hot);
}

.switch-bank {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.io-switch {
  width: 100%;
  max-width: 190px;
  position: relative;
  display: inline-grid;
  gap: 6px;
  justify-items: center;
  -webkit-user-select: none;
  user-select: none;
  min-height: 78px;
  align-content: start;
  margin-top: 0;
}

.io-label-row {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.io-switch-wrap {
  position: relative;
  width: 110px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  cursor: pointer;
}

.io-label {
  margin: 0;
}

.color-label,
.rotary-label,
.io-label {
  display: block;
  font-family: "Space Mono", monospace;
  font-size: 0.95rem;
  color: #f6b84a;
  margin-bottom: 4px;
  letter-spacing: 0.04em;
  text-shadow: 0 1px 2px #0e1e19, 0 0 6px #f6b84a44;
}

.io-switch input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  opacity: 0;
  pointer-events: none;
}

.io-track {
  width: 110px;
  height: 54px;
  border-radius: 9px;
  border: 1px solid rgba(170, 178, 190, 0.32);
  background: #676f7a;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), inset 0 -9px 12px rgba(0, 0, 0, 0.24), 0 4px 8px rgba(0, 0, 0, 0.28);
  position: absolute;
  overflow: hidden;
  transition: box-shadow 0.16s ease, background 0.16s ease, transform 0.16s ease, filter 0.16s ease;
  filter: none;
}

.io-track::before {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  top: 8px;
  bottom: 8px;
  border-radius: 8px;
  background: #2b3037;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), inset 0 -2px 8px rgba(0, 0, 0, 0.48);
}

.io-track::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  top: 8px;
  bottom: 8px;
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.28) 0 50%, rgba(0, 0, 0, 0.04) 50% 100%);
  transition: background 0.16s ease;
  box-shadow: inset 0 0 3px rgba(220, 230, 244, 0.04);
}

.io-switch input:checked ~ .io-switch-wrap .io-track {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1), inset 0 -9px 12px rgba(0, 0, 0, 0.26), 0 4px 8px rgba(0, 0, 0, 0.28);
}

.io-switch input:checked ~ .io-switch-wrap .io-track::after {
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.04) 0 50%, rgba(0, 0, 0, 0.28) 50% 100%);
}

.io-switch input:checked ~ .io-switch-wrap .io-off {
  color: #e0e5ec;
  opacity: 0.58;
}

.io-switch input:checked ~ .io-switch-wrap .io-on {
  color: #f4f8ff;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.18);
}

.io-switch input:not(:checked) ~ .io-switch-wrap .io-off {
  color: #f4f8ff;
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.18);
}

.io-switch input:not(:checked) ~ .io-switch-wrap .io-on {
  color: #e0e5ec;
  opacity: 0.58;
}

.io-switch-wrap:active .io-track {
  transform: translateY(1px);
}

.io-knob {
  display: none;
}

.io-marks {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  font: 800 10px/1 "Space Mono", monospace;
  pointer-events: none;
}

.io-off,
.io-on {
  color: #c9ced7;
  letter-spacing: 0.7px;
}

.io-alert-led {
  position: relative;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 214, 214, 0.26);
  background: #2b0b0b;
  box-shadow: inset 0 0 4px rgba(0, 0, 0, 0.58), 0 0 0 rgba(0, 0, 0, 0);
  opacity: 0.96;
  filter: brightness(0.52) saturate(0.7);
  pointer-events: none;
  transition: background 0.16s ease, box-shadow 0.16s ease, filter 0.16s ease, opacity 0.16s ease;
}

.io-switch.blink-hint .io-alert-led {
  background: #ff4b3a;
  animation: io-alert-blink 0.9s steps(2, end) infinite;
  box-shadow: inset 0 0 4px rgba(255, 255, 255, 0.24), 0 0 12px rgba(255, 88, 72, 0.62);
  filter: brightness(1.2) saturate(1.25);
}

.io-switch input:checked ~ .io-label-row .io-alert-led {
  animation: none;
  background: #ff5f4d;
  box-shadow: inset 0 0 4px rgba(255, 255, 255, 0.24), 0 0 14px rgba(255, 88, 72, 0.68);
  filter: brightness(1.18) saturate(1.2);
}

@keyframes io-alert-blink {
  0%,
  42% {
    opacity: 0.28;
    box-shadow: inset 0 0 1px rgba(255, 255, 255, 0.08), 0 0 0 rgba(255, 88, 72, 0);
    filter: brightness(0.74) saturate(0.92);
  }
  52%,
  100% {
    opacity: 1;
    box-shadow: inset 0 0 4px rgba(255, 255, 255, 0.24), 0 0 14px rgba(255, 88, 72, 0.68);
    filter: brightness(1.48) saturate(1.28);
  }
}

label {
  display: block;
  margin-bottom: 6px;
}

label span {
  display: inline-block;
  margin-bottom: 2px;
}

label strong {
  display: inline-block;
  margin-left: 6px;
  font-family: "Space Mono", monospace;
}

.rotary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.rotary-field {
  margin-bottom: 0;
  text-align: center;
}

.rotary-field strong {
  margin-left: 0;
  margin-top: 2px;
  color: #d7ece0;
}

.rotary-shell {
  width: 138px;
  height: 138px;
  margin: 6px auto 8px;
  border-radius: 50%;
  border: 1px solid rgba(210, 226, 218, 0.28);
  position: relative;
  background:
    radial-gradient(circle at 30% 26%, rgba(255, 255, 255, 0.22), transparent 28%),
    radial-gradient(circle at 76% 74%, rgba(0, 0, 0, 0.42), transparent 38%),
    linear-gradient(165deg, #56675f, #2e3d37 52%, #141f1b);
  box-shadow:
    0 10px 20px rgba(0, 0, 0, 0.42),
    inset 0 1px 1px rgba(255, 255, 255, 0.18),
    inset 0 -9px 15px rgba(0, 0, 0, 0.44);
  cursor: grab;
  touch-action: none;
}

.rotary-shell:active {
  cursor: grabbing;
}

.rotary-ticks {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  background: repeating-conic-gradient(from -140deg, rgba(223, 235, 230, 0.8) 0deg 1.2deg, transparent 1.2deg 10deg);
  -webkit-mask: radial-gradient(circle, transparent 0 56px, #000 56px 64px, transparent 64px);
  mask: radial-gradient(circle, transparent 0 56px, #000 56px 64px, transparent 64px);
  pointer-events: none;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.45));
}

.rotary-core {
  position: absolute;
  inset: 14px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, #789084, #42584e),
    repeating-conic-gradient(from 0deg, rgba(255, 255, 255, 0.06) 0deg 4deg, transparent 4deg 10deg);
  box-shadow: inset 0 2px 3px rgba(255, 255, 255, 0.15), inset 0 -7px 11px rgba(0, 0, 0, 0.42);
}

.rotary-indicator {
  position: absolute;
  top: 16px;
  left: 50%;
  width: 7px;
  height: 34px;
  border-radius: 999px;
  background: linear-gradient(180deg, #ffe6b7, #f6b84a);
  box-shadow: 0 0 12px rgba(246, 184, 74, 0.52);
  transform: translateX(-50%) rotate(-140deg);
  transform-origin: 50% 54px;
  z-index: 2;
}

.rotary-field input[type="range"] {
  accent-color: #7deec5;
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.color-field {
  margin-bottom: 0;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(13, 23, 18, 0.92), rgba(8, 14, 12, 0.88));
  text-align: center;
}

.color-field-red {
  --picker-tint: rgba(255, 84, 84, 0.22);
  --picker-border: rgba(255, 118, 118, 0.44);
  box-shadow: inset 0 0 0 1px rgba(255, 84, 84, 0.08);
}

.color-field-green {
  --picker-tint: rgba(88, 232, 147, 0.22);
  --picker-border: rgba(126, 247, 176, 0.44);
  box-shadow: inset 0 0 0 1px rgba(88, 232, 147, 0.08);
}

.color-field-blue {
  --picker-tint: rgba(92, 162, 255, 0.22);
  --picker-border: rgba(132, 188, 255, 0.44);
  box-shadow: inset 0 0 0 1px rgba(92, 162, 255, 0.08);
}

.color-picker {
  width: 100%;
  min-height: 58px;
  border: 1px solid var(--picker-border, #4b695f);
  border-radius: 10px;
  padding: 6px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.01)),
    linear-gradient(135deg, var(--picker-tint, rgba(255, 255, 255, 0.06)), rgba(9, 16, 13, 0.92));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 0 0 1px rgba(0, 0, 0, 0.18);
  cursor: pointer;
}

.color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-picker::-webkit-color-swatch {
  border: none;
  border-radius: 7px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.color-picker::-moz-color-swatch {
  border: none;
  border-radius: 7px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.color-field strong {
  margin: 8px 0 0;
  display: block;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.control-group.locked {
  opacity: 0.52;
  filter: grayscale(0.5);
}

.small-btn,
.primary-btn {
  border: 1px solid #4f6f64;
  border-radius: 8px;
  color: var(--ink-main);
  background: linear-gradient(180deg, #1e3a30, #12231d);
  font-family: "Space Mono", monospace;
  cursor: pointer;
  transition: transform 80ms ease, box-shadow 120ms ease;
}

.small-btn:active,
.primary-btn:active {
  transform: translateY(1px);
}

.small-btn {
  padding: 6px 10px;
}

.primary-btn {
  background: linear-gradient(180deg, #216b50, #174839);
  border-color: #66b190;
  padding: 10px 14px;
}

.primary-btn:hover,
.small-btn:hover {
  box-shadow: 0 0 0 2px var(--glow);
}

.primary-btn:disabled,
.small-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.danger {
  border-color: #8d3c2d;
  background: linear-gradient(180deg, #5e2418, #3a150f);
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.ports {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-bottom: 8px;
}

.port {
  font-family: "Space Mono", monospace;
  font-size: 0.85rem;
  text-align: center;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid #4e685f;
  background: rgba(18, 36, 30, 0.9);
}

.port.active {
  border-color: #96ffd6;
  color: #d8fff2;
  box-shadow: 0 0 10px rgba(124, 255, 208, 0.45);
}

.patch-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.patch-controls select {
  background: #0f1d18;
  color: var(--ink-main);
  border: 1px solid #476459;
  border-radius: 6px;
  padding: 5px;
}

.patch-list {
  margin: 8px 0 0;
  padding: 0 0 0 14px;
  min-height: 46px;
}

.patch-list li {
  font-family: "Space Mono", monospace;
  font-size: 0.85rem;
}

.output-screen {
  background:
    repeating-linear-gradient(0deg, rgba(46, 66, 34, 0.12) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, #c6d7b0, #b7c9a1 58%, #a8bb95);
  color: #2d4322;
  border: 1px solid #6b8751;
  border-radius: 8px;
  min-height: 96px;
  padding: 10px;
  white-space: pre-wrap;
  font-family: "Space Mono", monospace;
  text-shadow: 0 1px 0 rgba(232, 244, 204, 0.28);
  box-shadow: inset 0 0 0 1px rgba(205, 220, 154, 0.3), inset 0 -10px 18px rgba(58, 76, 32, 0.16);
}

.output-screen.display-off {
  background:
    repeating-linear-gradient(0deg, rgba(18, 24, 19, 0.32) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, #1a221d, #141b17 58%, #0f1512);
  color: transparent;
  border-color: #314038;
  text-shadow: none;
  box-shadow: inset 0 0 0 1px rgba(80, 98, 89, 0.14), inset 0 -10px 18px rgba(0, 0, 0, 0.28);
}

.codeword-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
  margin: 0 0 10px;
}

.codeword-row input {
  background: #0f1d18;
  color: var(--ink-main);
  border: 1px solid #476459;
  border-radius: 6px;
  padding: 6px 8px;
  font-family: "Space Mono", monospace;
}

.hint-text {
  margin: 0;
  min-height: 4.8em;
  display: flex;
  align-items: center;
  border: 1px solid #6f8958;
  border-radius: 8px;
  background:
    repeating-linear-gradient(0deg, rgba(46, 66, 34, 0.1) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, #c6d7b0, #b7c9a1 58%, #a8bb95);
  padding: 10px 12px;
  color: #2f4524;
}

.hint-card {
  width: min(94vw, 460px);
}

.hint-card .actions {
  margin-top: 14px;
}

.output-zone .section-head h2,
.output-zone .section-head span,
.output-zone .codeword-row label {
  color: #dce8d9;
}

.codeword-row input {
  background: #111c14;
  color: #ddf4de;
  border: 1px solid #5c7a64;
  border-radius: 6px;
  padding: 6px 8px;
}

.output-zone {
  position: relative;
  overflow: hidden;
}

.output-zone::after {
  content: "";
  position: absolute;
  inset: 12px;
  pointer-events: none;
  border-radius: 10px;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 4px);
  mix-blend-mode: soft-light;
}

.stage-chip {
  font-family: "Space Mono", monospace;
  font-size: 0.85rem;
  border: 1px solid #658d7f;
  border-radius: 999px;
  padding: 4px 10px;
}

.tutorial-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.tutorial-overlay.visible {
  display: flex;
}

.tutorial-card {
  width: min(94vw, 520px);
  padding: 18px;
}

.help-card {
  width: min(94vw, 760px);
}

.tutorial-card h3 {
  margin-top: 0;
  font-family: "Space Mono", monospace;
}

.help-grid {
  display: block;
  margin-bottom: 14px;
}

.help-section {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
}

.help-section p {
  margin: 0 0 8px;
}

.help-section ul {
  margin: 0;
  padding-left: 18px;
}

.help-section li + li {
  margin-top: 6px;
}

@media (max-width: 1150px) {
  .main-layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "signal"
      "control";
  }

  #signal-canvas {
    max-height: 290px;
  }
}

@media (max-width: 740px) {
  .color-grid {
    grid-template-columns: 1fr;
  }

  .switch-bank {
    grid-template-columns: 1fr;
  }

  .rotary-grid {
    grid-template-columns: 1fr;
  }

  .lock-led-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .rotary-shell {
    width: 116px;
    height: 116px;
  }

  .rotary-indicator {
    top: 13px;
    height: 29px;
    transform-origin: 50% 44px;
  }
}