/* Multi Pulse — instrument surface */

:root {
  --bg0: #0c1210;
  --bg1: #121a17;
  --bg2: #18221e;
  --line: rgba(61, 206, 138, 0.14);
  --line-strong: rgba(61, 206, 138, 0.32);
  --text: #d7ebe0;
  --muted: #7a9488;
  --accent: #3dce8a;
  --accent-dim: #1f7a52;
  --warn: #e0a24a;
  --danger: #e06b5c;
  --stream-a: #3dce8a;
  --stream-b: #4ec4c8;
  --stream-c: #7eb6ef;
  --stream-d: #c6a45a;
  --font-display: "Syne", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg0);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

body {
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(61, 206, 138, 0.08), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(78, 196, 200, 0.06), transparent 50%),
    linear-gradient(180deg, #0e1613 0%, var(--bg0) 40%, #0a0f0d 100%);
  background-attachment: fixed;
}

.app {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.75rem 0 3rem;
}

/* Header */

.top {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  animation: rise 0.7s var(--ease) both;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(61, 206, 138, 0.5);
  animation: pulse-mark 1.8s ease-in-out infinite;
}

.brand-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.55rem);
  letter-spacing: -0.03em;
  line-height: 1;
}

.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 42rem;
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 0.35rem;
}

.btn {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: var(--bg2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.7rem 1.1rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s, transform 0.15s;
}

.btn:hover {
  border-color: var(--accent);
}

.btn:active {
  transform: translateY(1px);
}

.btn-play {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 8.5rem;
  background: linear-gradient(180deg, #1a3d2d, #132820);
  border-color: var(--accent-dim);
}

.btn-play[aria-pressed="true"] {
  background: linear-gradient(180deg, #3a241c, #281810);
  border-color: var(--danger);
}

.btn-play-icon {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 6px 0 6px 10px;
  border-color: transparent transparent transparent var(--accent);
}

.btn-play[aria-pressed="true"] .btn-play-icon {
  width: 10px;
  height: 10px;
  border: 0;
  background: var(--danger);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
}

.status-cluster {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.status-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--muted);
}

.status-dot[data-state="playing"] {
  background: var(--accent);
  box-shadow: 0 0 10px rgba(61, 206, 138, 0.55);
  animation: blink 1.2s ease-in-out infinite;
}

.status-dot[data-state="armed"] {
  background: var(--warn);
}

.status-dot[data-state="error"] {
  background: var(--danger);
}

/* Live board */

.live-board {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 0.65rem;
  margin-bottom: 1rem;
  animation: rise 0.72s var(--ease) 0.03s both;
  align-items: stretch;
}

.live-card {
  border: 1px solid var(--line);
  background: rgba(18, 26, 23, 0.85);
  padding: 0.65rem 0.85rem;
  min-width: 8.5rem;
  display: grid;
  gap: 0.2rem;
}

.live-card-wide {
  min-width: 11rem;
}

.live-label {
  color: var(--muted);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.live-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.live-streams {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.45rem;
}

.live-stream-pill {
  border: 1px solid var(--line);
  background: rgba(14, 20, 17, 0.9);
  padding: 0.45rem 0.55rem;
  display: grid;
  gap: 0.12rem;
}

.live-stream-pill[data-index="0"] { border-color: color-mix(in srgb, var(--stream-a) 35%, transparent); }
.live-stream-pill[data-index="1"] { border-color: color-mix(in srgb, var(--stream-b) 35%, transparent); }
.live-stream-pill[data-index="2"] { border-color: color-mix(in srgb, var(--stream-c) 35%, transparent); }
.live-stream-pill[data-index="3"] { border-color: color-mix(in srgb, var(--stream-d) 35%, transparent); }

.live-stream-pill .pill-name {
  color: var(--muted);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.live-stream-pill .pill-overall {
  font-weight: 600;
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.live-stream-pill[data-index="0"] .pill-overall { color: var(--stream-a); }
.live-stream-pill[data-index="1"] .pill-overall { color: var(--stream-b); }
.live-stream-pill[data-index="2"] .pill-overall { color: var(--stream-c); }
.live-stream-pill[data-index="3"] .pill-overall { color: var(--stream-d); }

.live-stream-pill .pill-stream {
  color: var(--muted);
  font-size: 0.65rem;
  font-variant-numeric: tabular-nums;
}

.live-stream-pill.off {
  opacity: 0.35;
}

/* Master */

.master {
  border: 1px solid var(--line);
  background: rgba(18, 26, 23, 0.72);
  padding: 1rem 1.1rem 0.85rem;
  margin-bottom: 1.25rem;
  animation: rise 0.75s var(--ease) 0.05s both;
  backdrop-filter: blur(8px);
}

.master-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem 1.1rem;
  align-items: end;
}

.master-hint {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.72rem;
}

.ctrl {
  display: grid;
  gap: 0.35rem;
}

.ctrl-label {
  color: var(--muted);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ctrl output {
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-size: 0.8rem;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-dim), rgba(61, 206, 138, 0.25));
  border-radius: 2px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--accent);
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--accent);
  cursor: pointer;
}

.segmented {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.seg {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.45rem 0.75rem;
  cursor: pointer;
  min-width: 2.4rem;
}

.seg + .seg {
  border-left: 1px solid var(--line);
}

.seg.active {
  background: rgba(61, 206, 138, 0.14);
  color: var(--accent);
}

.seg:hover:not(.active) {
  color: var(--text);
}

/* Streams */

.streams {
  display: grid;
  gap: 0.9rem;
}

.stream {
  --accent-local: var(--stream-a);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(24, 34, 30, 0.9), rgba(14, 20, 17, 0.92));
  padding: 1rem 1.05rem 1.05rem;
  animation: rise 0.8s var(--ease) both;
  position: relative;
  overflow: hidden;
}

.stream::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-local);
}

.stream[data-index="0"] { --accent-local: var(--stream-a); animation-delay: 0.08s; }
.stream[data-index="1"] { --accent-local: var(--stream-b); animation-delay: 0.12s; }
.stream[data-index="2"] { --accent-local: var(--stream-c); animation-delay: 0.16s; }
.stream[data-index="3"] { --accent-local: var(--stream-d); animation-delay: 0.2s; }

.stream.hidden,
.stream[hidden] {
  display: none;
}

.stream-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.stream-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.stream-beacon {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent-local);
  opacity: 0.35;
  transition: opacity 0.08s linear, transform 0.08s linear;
}

.stream-beacon.flash {
  opacity: 1;
  transform: scale(1.35);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent-local) 70%, transparent);
}

.stream-live {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
  margin: 0 0 0.85rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--line);
  background: rgba(8, 12, 10, 0.45);
}

.stream-live-item {
  display: grid;
  gap: 0.1rem;
}

.stream-live-item .live-label {
  font-size: 0.58rem;
}

.stream-live-item .live-value {
  font-size: 0.92rem;
  color: var(--accent-local);
}

.stream-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.pulse-select {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(8, 12, 10, 0.55);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius);
  cursor: pointer;
}

.pulse-select:focus {
  outline: 1px solid var(--accent-local);
}

.ctrl.is-disabled {
  opacity: 0.4;
  pointer-events: none;
}

.chip {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius);
  cursor: pointer;
}

.chip.on {
  border-color: color-mix(in srgb, var(--accent-local) 55%, transparent);
  color: var(--accent-local);
  background: color-mix(in srgb, var(--accent-local) 12%, transparent);
}

.stream-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem 1rem;
  align-items: end;
}

.stream-grid .pulse-select {
  width: 100%;
}

.ctrl.is-disabled {
  opacity: 0.4;
  pointer-events: none;
}

.stream .ctrl output {
  color: var(--accent-local);
}

.stream input[type="range"] {
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--accent-local) 55%, #000),
    color-mix(in srgb, var(--accent-local) 20%, transparent)
  );
}

.stream input[type="range"]::-webkit-slider-thumb {
  border-color: var(--accent-local);
}

.stream input[type="range"]::-moz-range-thumb {
  border-color: var(--accent-local);
}

.ctrl-sub {
  color: var(--muted);
  font-size: 0.65rem;
}

/* Footer / keepalive */

.foot {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.75rem;
  animation: rise 0.9s var(--ease) 0.15s both;
}

.keepalive {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.keepalive span {
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.68rem;
  padding: 0.28rem 0.55rem;
  border-radius: var(--radius);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.keepalive span.on {
  color: var(--accent);
  border-color: var(--line-strong);
  background: rgba(61, 206, 138, 0.08);
}

.foot-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  max-width: 48rem;
}

@media (max-width: 900px) {
  .live-board {
    grid-template-columns: 1fr 1fr;
  }

  .live-streams {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .app {
    width: min(100% - 1.25rem, 1120px);
  }

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

  .master-row {
    grid-template-columns: 1fr 1fr;
  }

  .live-board {
    grid-template-columns: 1fr;
  }

  .live-streams {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .master-row {
    grid-template-columns: 1fr;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-mark {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(61, 206, 138, 0.45);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(61, 206, 138, 0);
    transform: scale(1.05);
  }
}

@keyframes blink {
  0%,
  100% { opacity: 1; }
  50% { opacity: 0.45; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}