/* /-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\ */
/* |                                                                         | */
/* \ @@@@@@@@  @@@  @@@  @@@@@@@  @@@@@@@    @@@@@@   @@@@@@@   @@@ @@@      / */
/* - @@@@@@@@  @@@@ @@@  @@@@@@@  @@@@@@@@  @@@@@@@@  @@@@@@@@  @@@ @@@      - */
/* / @@!       @@!@!@@@    @@!    @@!  @@@  @@!  @@@  @@!  @@@  @@! !@@      \ */
/* | !@!       !@!!@!@!    !@!    !@!  @!@  !@!  @!@  !@!  @!@  !@! @!!      | */
/* \ @!!!:!    @!@ !!@!    @!!    @!@!!@!   @!@  !@!  @!@@!@!    !@!@!       / */
/* - !!!!!:    !@!  !!!    !!!    !!@!@!    !@!  !!!  !!@!!!      @!!!       - */
/* / !!:       !!:  !!!    !!:    !!: :!!   !!:  !!!  !!:         !!:        \ */
/* | :!:       :!:  !:!    :!:    :!:  !:!  :!:  !:!  :!:         :!:        | */
/* \  :: ::::   ::   ::     ::    ::   :::  ::::: ::   ::          ::        / */
/* - : :: ::   ::    :      :      :   : :   : :  :    :           :         - */
/* /                                                                         \ */
/* |                                                                         | */
/* \ @@@  @@@  @@@   @@@@@@   @@@@@@@    @@@@@@   @@@  @@@  @@@  @@@@@@@     / */
/* - @@@  @@@  @@@  @@@@@@@@  @@@@@@@@  @@@@@@@   @@@  @@@  @@@  @@@@@@@@    - */
/* / @@!  @@!  @@!  @@!  @@@  @@!  @@@  !@@       @@!  @@@  @@!  @@!  @@@    \ */
/* | !@!  !@!  !@!  !@!  @!@  !@!  @!@  !@!       !@!  @!@  !@!  !@!  @!@    | */
/* \ @!!  !!@  @!@  @!@  !@!  @!@!!@!   !!@@!!    @!@!@!@!  !!@  @!@@!@!     / */
/* - !@!  !!!  !@!  !@!  !!!  !!@!@!     !!@!!!   !!!@!!!!  !!!  !!@!!!      - */
/* / !!:  !!:  !!:  !!:  !!!  !!: :!!        !:!  !!:  !!!  !!:  !!:         \ */
/* | :!:  :!:  :!:  :!:  !:!  :!:  !:!      !:!   :!:  !:!  :!:  :!:         | */
/* \  :::: :: :::   ::::: ::  ::   :::  :::: ::   ::   :::   ::   ::         / */
/* -   :: :  : :     : :  :    :   : :  :: : :     :   : :  :     :          - */
/* /                                                                         \ */
/* |                                                                         | */
/* \-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/ */
/* ── Fonts ──────────────────────────────────────────────────── */
/* VT323 loaded via Google Fonts in HTML */

/* ── Reset ──────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Design tokens ──────────────────────────────────────────── */
:root {
  --bg: transparent;
  --surface: rgba(0, 0, 0, 0.55);
  --border: rgba(102, 12, 12, 0.5);
  --border-hi: rgba(255, 34, 34, 0.7);
  --text: #ffffff;
  --dim: #660c0c;
  --accent: #ff2222;
  --teal: #05af90;
  --yellow: #cec823;
  --blue: #4499ff;
  --panel-glow: drop-shadow(0 0 6px rgba(255, 34, 34, 0.22))
    drop-shadow(0 0 28px rgba(102, 12, 12, 0.14));
  --font: "VT323", "Courier New", monospace;
}

/* ── Keyframes ──────────────────────────────────────────────── */
@keyframes title-glow {
  0%,
  100% {
    text-shadow:
      0 0 8px rgba(255, 34, 34, 0.8),
      0 0 28px rgba(255, 34, 34, 0.3);
  }
  50% {
    text-shadow:
      0 0 16px rgba(255, 34, 34, 1),
      0 0 48px rgba(255, 34, 34, 0.6),
      0 0 80px rgba(255, 34, 34, 0.2);
  }
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}
@keyframes con-fade {
  to {
    opacity: 1;
  }
}
@keyframes rec-pulse {
  50% {
    opacity: 0.35;
  }
}
@keyframes scan-pulse {
  0%,
  100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

@keyframes stop-flash {
  0%,
  100% {
    color: var(--dim);
    border-color: var(--border);
    text-shadow: none;
  }
  50% {
    color: var(--accent);
    border-color: var(--border-hi);
    text-shadow: 0 0 8px rgba(255, 34, 34, 0.7);
  }
}

@keyframes border-flicker {
  0%,
  96%,
  100% {
    border-color: rgba(102, 12, 12, 0.5);
  }
  97% {
    border-color: rgba(255, 34, 34, 0.9);
  }
  98% {
    border-color: rgba(102, 12, 12, 0.3);
  }
  99% {
    border-color: rgba(255, 34, 34, 0.7);
  }
}

/* ── Background layers ──────────────────────────────────────── */
html,
body {
  background: transparent;
}

#galaxy-bg {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  pointer-events: none;
}

#grid-bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(102, 12, 12, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 12, 12, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
}

#scanlines {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 0, 0, 0.08) 3px,
    rgba(0, 0, 0, 0.08) 4px
  );
}

/* ── Base ───────────────────────────────────────────────────── */
body {
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  font-size: 24px;
  line-height: 1.4;
  position: relative;
}

/* ── Custom scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar {
  width: 4px;
  background: #000;
}
::-webkit-scrollbar-thumb {
  background: rgba(102, 12, 12, 0.6);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 34, 34, 0.6);
}

/* ── Clip-path variants ─────────────────────────────────────── */
.clip-br {
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 14px),
    calc(100% - 14px) 100%,
    0 100%
  );
}
.clip-bl {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}
.clip-tr {
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}
.clip-tl {
  clip-path: polygon(14px 0, 100% 0, 100% 100%, 0 100%, 0 14px);
}

/* ── HUD title ──────────────────────────────────────────────── */
.hud-title {
  font-family: var(--font);
  font-size: 2.4rem;
  letter-spacing: 0.45em;
  color: var(--accent);
  text-shadow:
    0 0 8px rgba(255, 34, 34, 1),
    0 0 28px rgba(255, 34, 34, 0.5);
  animation: title-glow 3s ease-in-out infinite;
  line-height: 1;
  text-transform: uppercase;
}

/* ── HUD panel ──────────────────────────────────────────────── */
.hud-panel {
  position: relative;
  background: var(--surface);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  filter: var(--panel-glow);
  padding: 14px 18px;
  margin-bottom: 14px;
  animation: border-flicker 12s linear infinite;
}

/* ── Section title ──────────────────────────────────────────── */
.section-title {
  font-size: 0.78rem;
  color: rgba(255, 60, 60, 0.9);
  text-shadow:
    0 0 8px rgba(255, 34, 34, 0.7),
    0 0 20px rgba(255, 34, 34, 0.3);
  letter-spacing: 0.25em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

/* ── Unlock overlay ─────────────────────────────────────────── */
#unlock-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.unlock-box {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  padding: 52px 80px;
  background: rgba(4, 4, 4, 0.9);
  border: 1px solid rgba(102, 12, 12, 0.6);
  clip-path: polygon(
    0 0,
    calc(100% - 20px) 0,
    100% 20px,
    100% 100%,
    20px 100%,
    0 calc(100% - 20px)
  );
  filter: drop-shadow(0 0 14px rgba(255, 34, 34, 0.35))
    drop-shadow(0 0 50px rgba(102, 12, 12, 0.18));
}
/* Corner brackets */
.unlock-corner {
  position: absolute;
  width: 14px;
  height: 14px;
}
.unlock-corner.tl {
  top: 6px;
  left: 6px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
}
.unlock-corner.tr {
  top: 6px;
  right: 6px;
  border-top: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
}
.unlock-corner.bl {
  bottom: 6px;
  left: 6px;
  border-bottom: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
}
.unlock-corner.br {
  bottom: 6px;
  right: 6px;
  border-bottom: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
}

.unlock-box .hud-title {
  font-size: 3.4rem;
}
.unlock-box p {
  color: var(--dim);
  font-size: 0.95rem;
  letter-spacing: 0.2em;
}

/* ── App shell ──────────────────────────────────────────────── */
#app {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px;
  position: relative;
  z-index: 1;
}

/* ── Header ─────────────────────────────────────────────────── */
header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 8px;
}
header .hud-title {
  font-size: 1.9rem;
}

#meta {
  display: flex;
  gap: 20px;
  color: var(--dim);
  font-size: 1rem;
  flex-wrap: wrap;
  align-items: baseline;
  letter-spacing: 0.06em;
}
.connected {
  color: var(--teal) !important;
  text-shadow: 0 0 6px rgba(5, 175, 144, 0.6);
}
.disconnected {
  color: var(--accent) !important;
}
#room-display strong {
  color: var(--teal);
}

/* ── Room bar ───────────────────────────────────────────────── */
#room-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

/* ── Peers bar ──────────────────────────────────────────────── */
#peers-bar {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  font-size: 0.9rem;
  min-height: 16px;
  letter-spacing: 0.04em;
}
.peer {
  color: var(--dim);
}
.peer.me {
  color: var(--teal);
  text-shadow: 0 0 5px rgba(5, 175, 144, 0.5);
}
.peer-rtt {
  color: var(--text);
}
.peer-hi {
  color: var(--accent);
  text-shadow: 0 0 5px rgba(255, 34, 34, 0.5);
}

/* ── Buttons ────────────────────────────────────────────────── */
button {
  background: rgba(0, 0, 0, 0.45);
  color: var(--dim);
  border: 1px solid var(--border);
  padding: 6px 16px;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  clip-path: polygon(
    0 0,
    calc(100% - 6px) 0,
    100% 6px,
    100% 100%,
    6px 100%,
    0 calc(100% - 6px)
  );
  transition:
    color 0.1s,
    background 0.1s,
    border-color 0.1s,
    text-shadow 0.1s;
  outline: none;
}
button:hover:not(:disabled) {
  background: rgba(255, 34, 34, 0.1);
  border-color: var(--border-hi);
  color: var(--accent);
  text-shadow: 0 0 8px rgba(255, 34, 34, 0.7);
}
button:active:not(:disabled) {
  background: rgba(255, 34, 34, 0.2);
}
button:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}
button.active {
  background: rgba(5, 175, 144, 0.12);
  border-color: var(--teal);
  color: var(--teal);
  text-shadow: 0 0 7px rgba(5, 175, 144, 0.7);
}

/* ── All select elements ────────────────────────────────────── */
select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-color: rgba(0, 0, 0, 0.45);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpolygon points='0,0 10,0 5,6' fill='%23660c0c'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 5px 26px 5px 8px;
  font-family: var(--font);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  outline: none;
  clip-path: polygon(
    0 0,
    calc(100% - 5px) 0,
    100% 5px,
    100% 100%,
    5px 100%,
    0 calc(100% - 5px)
  );
}
select:focus {
  border-color: var(--border-hi);
}
select option {
  background: #0a0404;
  color: var(--text);
}

/* ── All text inputs ────────────────────────────────────────── */
input[type="text"],
input[type="number"] {
  background: rgba(0, 0, 0, 0.45);
  color: var(--teal);
  border: 1px solid var(--border);
  padding: 4px 8px;
  font-family: var(--font);
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  outline: none;
  caret-color: var(--accent);
  text-transform: uppercase;
}
input[type="text"]:focus,
input[type="number"]:focus {
  border-color: var(--border-hi);
}
input[type="text"]::placeholder {
  color: rgba(102, 12, 12, 0.5);
}
input[type="number"] {
  -moz-appearance: textfield;
  width: 3.2em;
  text-align: center;
  padding: 4px 4px;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  opacity: 0.4;
  cursor: pointer;
}

/* ── Range sliders ──────────────────────────────────────────── */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100px;
  height: 3px;
  background: rgba(102, 12, 12, 0.35);
  outline: none;
  border: none;
  cursor: pointer;
  vertical-align: middle;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  background: rgba(102, 12, 12, 0.35);
}
input[type="range"]::-moz-range-track {
  height: 3px;
  background: rgba(102, 12, 12, 0.35);
  border: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  background: var(--accent);
  cursor: pointer;
  transform: rotate(45deg);
  box-shadow:
    0 0 6px var(--accent),
    0 0 14px rgba(255, 34, 34, 0.4);
  margin-top: -4.5px;
}
input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: var(--accent);
  cursor: pointer;
  transform: rotate(45deg);
  border: none;
  box-shadow: 0 0 6px var(--accent);
}

/* ── Controls panel ─────────────────────────────────────────── */
#controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
#controls .section-title {
  width: 100%;
  margin-bottom: 0;
}
.bpm-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
strong {
  color: var(--teal);
  min-width: 30px;
  display: inline-block;
  font-weight: normal;
}
.label-dim {
  color: var(--dim);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

/* ── Synth selector ────────────────────────────────────────── */
#synth-controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}
#synth-top-row,
#synth-env-row,
#synth-lfo-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
#synth-controls select {
  min-width: 80px;
}
#fm-params {
  display: flex;
  align-items: center;
  gap: 10px;
}
#synth-controls input[type="range"] {
  width: 60px;
}
#synth-env-row strong,
#synth-lfo-row strong,
#fm-params strong {
  min-width: 24px;
  font-size: 0.85rem;
}
#lfo-toggle-btn {
  font-size: 0.8rem;
  padding: 2px 8px;
  min-width: 36px;
}

/* ── MIDI io ─────────────────────────────────────────────────── */
#midi-controls {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
#midi-io {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.midi-sep {
  color: var(--dim);
}

/* Hidden until MIDI access granted */
#midi-input-device,
#midi-output-device,
#midi-arrow,
#thru-btn,
#clock-relay-btn {
  display: none;
}

#midi-input-device,
#midi-output-device {
  max-width: 190px;
}

#panic-btn {
  border-color: rgba(255, 34, 34, 0.4);
  color: var(--accent);
}
#panic-btn:hover:not(:disabled) {
  background: rgba(255, 34, 34, 0.18);
  border-color: var(--accent);
  text-shadow: 0 0 10px var(--accent);
}

#midi-channel-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
#midi-channel-row label {
  gap: 6px;
  font-size: 0.88rem;
}
#midi-channel-row select {
  font-size: 0.85rem;
}

/* ── Sequencer ───────────────────────────────────────────────── */
#seq-wrap {
  padding-bottom: 16px;
}
#sequencer {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lbl {
  width: 58px;
  text-align: right;
  font-size: 0.78rem;
  color: var(--dim);
  border-left: 2px solid;
  padding-left: 6px;
  flex-shrink: 0;
  letter-spacing: 0.04em;
  line-height: 1;
}
.grid {
  display: flex;
  gap: 3px;
}
.cell {
  width: 38px;
  height: 38px;
  padding: 0;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(102, 12, 12, 0.18);
  cursor: pointer;
  flex-shrink: 0;
  clip-path: polygon(
    0 0,
    calc(100% - 4px) 0,
    100% 4px,
    100% 100%,
    4px 100%,
    0 calc(100% - 4px)
  );
  transition:
    background 0.06s,
    box-shadow 0.06s,
    filter 0.06s;
  outline: none;
}
.cell.beat {
  margin-left: 5px;
}
.cell.on {
  background: var(--c);
  border-color: var(--c);
  box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.4);
  opacity: 0.88;
}
.cell.now {
  box-shadow:
    0 0 0 2px var(--accent),
    0 0 10px rgba(255, 34, 34, 0.65);
  z-index: 1;
  position: relative;
}
.cell.on.now {
  filter: brightness(1.8);
  box-shadow:
    0 0 0 2px #fff,
    0 0 16px rgba(255, 34, 34, 0.85);
}
.cell:hover:not(.on):not(.now) {
  background: rgba(102, 12, 12, 0.2);
  border-color: rgba(102, 12, 12, 0.45);
}

/* ── Virtual keyboard ───────────────────────────────────────── */
#vkb-controls {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
#vkb-controls label {
  gap: 6px;
}
#vkb-controls input[type="range"] {
  width: 80px;
}

#vkb-scroll {
  overflow-x: auto;
  border: 1px solid var(--border);
  scrollbar-width: none;
}
#vkb-scroll::-webkit-scrollbar {
  display: none;
}
#vkb {
  position: relative;
  height: 96px;
  min-width: 900px;
  user-select: none;
  -webkit-user-select: none;
}
.vkey {
  position: absolute;
  top: 0;
  height: 100%;
  background: linear-gradient(180deg, #ccc 0%, #e8e8e8 40%, #bbb 100%);
  border-right: 1px solid rgba(102, 12, 12, 0.35);
  border-bottom: 2px solid rgba(102, 12, 12, 0.4);
  cursor: pointer;
  box-sizing: border-box;
  transition:
    background 0.04s,
    box-shadow 0.04s;
}
.vkey:hover {
  background: linear-gradient(180deg, #ddd 0%, #f5f5f5 40%, #ccc 100%);
}
.vkey.black {
  background: linear-gradient(180deg, #141010 0%, #1c1414 60%, #0a0808 100%);
  border: 1px solid rgba(102, 12, 12, 0.6);
  border-bottom: 3px solid rgba(255, 34, 34, 0.3);
  height: 57%;
  z-index: 2;
}
.vkey.black:hover {
  background: linear-gradient(180deg, #2a0f0f 0%, #380e0e 60%, #1a0808 100%);
}
.vkey.active {
  background: var(--accent) !important;
  box-shadow: 0 0 12px rgba(255, 34, 34, 0.8) !important;
}

/* ── CC monitor ─────────────────────────────────────────────── */
#monitor-section {
  padding-bottom: 16px;
}
#monitor-cols {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
.monitor-col {
  flex: 1;
  min-width: 0;
}
.monitor-col .section-title {
  margin-bottom: 8px;
}
#cc-viz {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 18px;
}
.cc-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.cc-label {
  font-size: 0.82rem;
  color: var(--dim);
  min-width: 94px;
  flex-shrink: 0;
  letter-spacing: 0.05em;
}
.cc-bar-bg {
  flex: 1;
  height: 8px;
  background: rgba(4, 4, 4, 0.9);
  border: 1px solid var(--border);
  clip-path: polygon(
    0 0,
    calc(100% - 3px) 0,
    100% 3px,
    100% 100%,
    3px 100%,
    0 calc(100% - 3px)
  );
}
.cc-bar {
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(5, 175, 144, 0.9),
    rgba(5, 175, 144, 0.6)
  );
  box-shadow: 0 0 6px rgba(5, 175, 144, 0.5);
  transition: width 0.07s;
}
.cc-val {
  font-size: 0.85rem;
  color: var(--teal);
  min-width: 30px;
  text-align: right;
  flex-shrink: 0;
  text-shadow: 0 0 4px rgba(5, 175, 144, 0.4);
}

#stop-btn:not(:disabled),
#rec-stop-btn:not(:disabled),
#play-btn:not(:disabled),
#rec-btn:not(:disabled) {
  animation: stop-flash 1.8s ease-in-out infinite;
}

/* ── Recording ──────────────────────────────────────────────── */
#record-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
#rec-btn {
  border-color: rgba(255, 34, 34, 0.4);
  color: var(--accent);
}
#rec-btn:hover:not(:disabled) {
  background: rgba(255, 34, 34, 0.15);
  border-color: var(--accent);
}
#rec-btn.recording {
  background: rgba(255, 34, 34, 0.14);
  border-color: var(--accent);
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent);
  animation: rec-pulse 0.9s step-end infinite;
}
#rec-status {
  font-size: 0.88rem;
  color: var(--dim);
}

/* ── Pattern selector (shared) ───────────────────────────────── */
.pattern-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.pat-btn {
  width: 22px;
  height: 20px;
  min-width: 22px;
  font-family: var(--font);
  font-size: 0.7rem;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.4);
  color: var(--dim);
  border-radius: 2px;
  cursor: pointer;
  padding: 0;
  transition: background 0.12s, border-color 0.12s;
}
.pat-btn:hover {
  border-color: var(--border-hi);
  color: var(--text);
}
.pat-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
}
.pat-btn.queued {
  border-color: var(--yellow);
  color: var(--yellow);
  animation: pat-pulse 0.6s ease-in-out infinite alternate;
}
@keyframes pat-pulse {
  from { opacity: 0.5; }
  to   { opacity: 1; }
}
.pattern-queue-btn {
  font-size: 0.7rem;
  padding: 2px 6px;
  margin-left: 4px;
}

/* ── Chain sequencer ────────────────────────────────────────── */
.chain-row {
  display: flex;
  align-items: center;
  gap: 3px;
  flex-wrap: wrap;
  flex-basis: 100%;
}
.chain-toggle-btn {
  font-size: 0.7rem;
  padding: 2px 6px;
}
.chain-slot {
  width: 34px;
  min-width: 34px;
  font-family: var(--font);
  font-size: 0.7rem;
  padding: 1px 2px;
  background: rgba(0, 0, 0, 0.5);
  color: var(--dim);
  border: 1px solid var(--border);
  border-radius: 2px;
  cursor: pointer;
}
.chain-slot:focus {
  border-color: var(--border-hi);
  color: var(--text);
}
.chain-slot.chain-active {
  border-color: var(--yellow);
  color: var(--yellow);
  background: rgba(206, 200, 35, 0.1);
}

/* ── EW909 Drum Machine ─────────────────────────────────────── */
#dm-section {
  margin-top: 12px;
}
#dm-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
#dm-grid {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-x: auto;
}
.dm-row {
  display: flex;
  align-items: center;
  gap: 2px;
}
.dm-row-label {
  width: 40px;
  min-width: 40px;
  font-size: 0.75rem;
  color: var(--dim);
  text-align: right;
  padding-right: 6px;
  letter-spacing: 0.04em;
}
.dm-sample-sel {
  width: 120px;
  min-width: 120px;
  font-family: inherit;
  font-size: 0.65rem;
  background: rgba(0, 0, 0, 0.5);
  color: var(--dim);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 2px;
  cursor: pointer;
}
.dm-sample-sel:hover,
.dm-sample-sel:focus {
  border-color: var(--border-hi);
  color: var(--fg);
}
.dm-note-input {
  width: 36px;
  min-width: 36px;
  font-family: inherit;
  font-size: 0.65rem;
  background: rgba(0, 0, 0, 0.5);
  color: var(--dim);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 2px;
  text-align: center;
}
.dm-note-input:hover,
.dm-note-input:focus {
  border-color: var(--border-hi);
  color: var(--fg);
}
#dm-drop-zone {
  display: inline-block;
  background: rgba(0, 0, 0, 0.45);
  color: var(--dim);
  border: 1px dashed var(--border);
  padding: 6px 16px;
  cursor: default;
  font-family: var(--font);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  clip-path: polygon(
    0 0,
    calc(100% - 6px) 0,
    100% 6px,
    100% 100%,
    6px 100%,
    0 calc(100% - 6px)
  );
  transition:
    color 0.15s,
    background 0.15s,
    border-color 0.15s;
  user-select: none;
}
#dm-drop-zone:hover,
#dm-drop-zone.drag-over {
  background: rgba(5, 175, 144, 0.12);
  border-color: var(--teal);
  color: var(--teal);
  text-shadow: 0 0 8px rgba(5, 175, 144, 0.7);
}
.dm-step {
  width: 22px;
  height: 22px;
  min-width: 22px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.4);
  border-radius: 3px;
  cursor: pointer;
  padding: 0;
  transition: background 0.1s;
}
.dm-step:hover {
  border-color: var(--border-hi);
}
.dm-step.active {
  background: rgb(51, 1, 1);
  border-color: var(--accent);
}
.dm-step.playing {
  background: var(--yellow);
  border-color: var(--yellow);
}
.dm-step.active.playing {
  background: var(--accent);
  border-color: #ff6644;
}

/* ── Inline Mixer Faders ───────────────────────────────────── */
.mx-inline {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.mx-inline-label {
  font-size: 0.6rem;
  color: var(--dim);
  letter-spacing: 0.02em;
}
.mx-inline-fader {
  width: 50px;
  height: 10px;
  cursor: pointer;
  accent-color: var(--teal);
}
.mx-inline-db {
  width: 24px;
  min-width: 24px;
  font-size: 0.55rem;
  color: var(--teal);
  text-align: right;
}
.mx-inline-mute {
  width: 16px;
  height: 14px;
  font-family: var(--font);
  font-size: 0.55rem;
  padding: 0;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.4);
  color: var(--dim);
  border-radius: 2px;
  cursor: pointer;
  line-height: 1;
}
.mx-inline-mute.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
}

/* ── MIDI log ───────────────────────────────────────────────── */
#midi-log {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 260px;
  overflow-y: auto;
}
.mlog {
  font-size: 0.88rem;
  color: var(--teal);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 0;
  opacity: 0;
  animation: con-fade 0.25s forwards;
  text-shadow: 0 0 4px rgba(5, 175, 144, 0.3);
}
.mlog.rem {
  color: var(--blue);
  text-shadow: 0 0 4px rgba(68, 153, 255, 0.3);
}

/* ── Cursor blink ───────────────────────────────────────────── */
.cursor-blink {
  color: var(--dim);
  animation: blink 1s step-end infinite;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 700px) {
  .cell {
    width: 26px;
    height: 26px;
  }
  .grid {
    gap: 2px;
  }
  .cell.beat {
    margin-left: 3px;
  }
  #vkb {
    height: 72px;
  }
  .vkey.black {
    height: 52%;
  }
  .unlock-box {
    padding: 36px 24px;
  }
  .unlock-box .hud-title {
    font-size: 2.4rem;
  }
}

/* ── Piano Roll canvases ─────────────────────────────────────── */
#pr-drop-zone {
  display: inline-block;
  background: rgba(0, 0, 0, 0.45);
  color: var(--dim);
  border: 1px dashed var(--border);
  padding: 6px 16px;
  cursor: default;
  font-family: var(--font);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  clip-path: polygon(
    0 0,
    calc(100% - 6px) 0,
    100% 6px,
    100% 100%,
    6px 100%,
    0 calc(100% - 6px)
  );
  transition:
    color 0.15s,
    background 0.15s,
    border-color 0.15s;
  user-select: none;
}
#pr-drop-zone:hover,
#pr-drop-zone.drag-over {
  background: rgba(5, 175, 144, 0.12);
  border-color: var(--teal);
  color: var(--teal);
  text-shadow: 0 0 8px rgba(5, 175, 144, 0.7);
}
#pr-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
#pr-zoom-controls {
  display: flex;
  gap: 2px;
  margin-left: auto;
}
#pr-zoom-controls button {
  width: 26px;
  height: 22px;
  font-size: 0.85rem;
  padding: 0;
}

#pr-canvas-wrap {
  position: relative;
  width: 100%;
  height: 260px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
  cursor: crosshair;
}

#pr-keys {
  position: absolute;
  left: 0;
  top: 24px;
  width: 52px;
  height: calc(100% - 24px);
  z-index: 2;
  pointer-events: none;
}

#pr-ruler {
  position: absolute;
  left: 52px;
  top: 0;
  right: 0;
  height: 24px;
  z-index: 2;
  pointer-events: none;
}

#pr-grid {
  position: absolute;
  left: 52px;
  top: 24px;
  right: 0;
  height: calc(100% - 24px);
  z-index: 1;
}

/* ── Program Change monitor ─────────────────────────────────── */
#pgm-viz {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-height: 18px;
}
.pgm-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 0.88rem;
  font-family: var(--font);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.pgm-ch {
  color: var(--dim);
  min-width: 42px;
  flex-shrink: 0;
}
.pgm-num {
  color: var(--accent);
  min-width: 38px;
  flex-shrink: 0;
  text-shadow: 0 0 4px rgba(255, 34, 34, 0.4);
}
.pgm-name {
  color: var(--teal);
  text-shadow: 0 0 4px rgba(5, 175, 144, 0.3);
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Pitch Bend monitor ─────────────────────────────────────── */
#bend-viz {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 18px;
}
.bend-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-family: var(--font);
  letter-spacing: 0.05em;
}
.bend-ch {
  color: var(--dim);
  min-width: 42px;
  flex-shrink: 0;
}
.bend-bar-bg {
  flex: 1;
  height: 8px;
  background: rgba(4, 4, 4, 0.9);
  border: 1px solid var(--border);
  position: relative;
  clip-path: polygon(
    0 0,
    calc(100% - 3px) 0,
    100% 3px,
    100% 100%,
    3px 100%,
    0 calc(100% - 3px)
  );
}
.bend-center {
  position: absolute;
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  background: rgba(102, 12, 12, 0.6);
}
.bend-fill {
  position: absolute;
  top: 0;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(5, 175, 144, 0.9),
    rgba(5, 175, 144, 0.6)
  );
  box-shadow: 0 0 6px rgba(5, 175, 144, 0.5);
  transition:
    left 0.05s,
    width 0.05s;
}
.bend-val {
  font-size: 0.88rem;
  color: var(--accent);
  min-width: 52px;
  text-align: right;
  flex-shrink: 0;
  text-shadow: 0 0 4px rgba(255, 34, 34, 0.4);
}

/* ── Clock BPM in header ────────────────────────────────────── */
#clock-bpm {
  color: var(--yellow);
  text-shadow: 0 0 5px rgba(206, 200, 35, 0.5);
  letter-spacing: 0.06em;
  font-size: 1rem;
  min-width: 60px;
}

/* ── Browser warning ────────────────────────────────────────── */
#browser-warn-splash {
  text-align: center;
  color: var(--yellow);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  line-height: 1.6;
  border: 1px solid rgba(206, 200, 35, 0.35);
  padding: 10px 18px;
  background: rgba(206, 200, 35, 0.06);
}
.warn-icon {
  color: var(--yellow);
  text-shadow: 0 0 8px rgba(206, 200, 35, 0.7);
}
.warn-sub {
  color: rgba(206, 200, 35, 0.6);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
}

/* ── Help button in header ──────────────────────────────────── */
#help-btn {
  font-size: 0.88rem;
  padding: 2px 10px;
  letter-spacing: 0.1em;
}

/* ── Help modal ─────────────────────────────────────────────── */
#help-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
#help-modal.open {
  display: flex;
}
.help-box {
  position: relative;
  background: rgba(4, 4, 4, 0.95);
  border: 1px solid rgba(102, 12, 12, 0.6);
  clip-path: polygon(
    0 0,
    calc(100% - 20px) 0,
    100% 20px,
    100% 100%,
    20px 100%,
    0 calc(100% - 20px)
  );
  filter: drop-shadow(0 0 14px rgba(255, 34, 34, 0.35))
    drop-shadow(0 0 50px rgba(102, 12, 12, 0.18));
  width: 100%;
  max-width: 700px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
}
.help-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.help-header .hud-title {
  font-size: 2rem;
}
.help-content {
  overflow-y: auto;
  padding: 20px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.help-intro {
  color: var(--dim);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
}
.help-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.help-section p {
  color: var(--text);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.help-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.help-list li {
  color: var(--text);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  padding-left: 1.2em;
}
.help-list li::before {
  content: "›";
  color: var(--accent);
  margin-left: -1.2em;
  margin-right: 0.4em;
}
.help-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.88rem;
}
.help-table tr {
  border-bottom: 1px solid rgba(102, 12, 12, 0.2);
}
.help-table td {
  padding: 5px 8px 5px 0;
  vertical-align: baseline;
  line-height: 1.4;
}
.help-table td:first-child {
  padding-right: 16px;
  white-space: nowrap;
}
.help-table td:last-child {
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.04em;
}
.hk {
  color: var(--teal);
  text-shadow: 0 0 4px rgba(5, 175, 144, 0.4);
  letter-spacing: 0.06em;
}

/* ── Available Rooms panel ───────────────────────────────────── */
.panel-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 8px 0 4px;
}
#rooms-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 4px 0;
  min-height: 24px;
}
.room-entry {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 8px;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid transparent;
  font-family: var(--font);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  transition:
    background 0.15s,
    border-color 0.15s;
}
.room-entry:hover {
  border-color: var(--border);
  background: rgba(255, 34, 34, 0.07);
}
.room-entry-name {
  letter-spacing: 0.1em;
}
.room-entry-info {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.help-footer {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.help-bug-link {
  display: inline-block;
  background: rgba(0, 0, 0, 0.45);
  color: var(--dim);
  border: 1px solid var(--border);
  padding: 6px 16px;
  font-family: var(--font);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  clip-path: polygon(
    0 0,
    calc(100% - 6px) 0,
    100% 6px,
    100% 100%,
    6px 100%,
    0 calc(100% - 6px)
  );
  transition: color 0.1s, border-color 0.1s, text-shadow 0.1s;
}
.help-bug-link:hover {
  color: var(--accent);
  border-color: var(--border-hi);
  text-shadow: 0 0 8px rgba(255, 34, 34, 0.6);
}

/* ── Footer ──────────────────────────────────────────────────── */
#ew-footer {
  border-top: 1px solid var(--border);
  padding: 6px 12px;
  text-align: center;
}
#ew-footer-link {
  font-family: var(--font);
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  color: rgba(102, 12, 12, 0.6);
  text-decoration: none;
  text-transform: uppercase;
  transition:
    color 0.2s,
    text-shadow 0.2s;
}
#ew-footer-link:hover {
  color: var(--accent);
  text-shadow: 0 0 8px rgba(255, 34, 34, 0.5);
}