.signal-studio { background: #fff; border-bottom: 1px solid var(--line); padding-block: clamp(64px, 8vw, 112px); }
.signal-studio-intro { display: grid; grid-template-columns: 1.2fr .72fr; align-items: end; gap: 70px; margin-bottom: 42px; }
.signal-studio-intro h2 { margin-top: 18px; font-size: clamp(42px, 5vw, 68px); line-height: 1.02; letter-spacing: -.06em; }
.signal-studio-intro h2 span { color: var(--orange); }
.signal-studio-lede { padding: 4px 0 4px 25px; border-left: 1px solid var(--line); color: var(--muted); font-size: 15px; line-height: 1.85; max-width: 420px; }
.signal-studio-stage { --loop-muted: #b7c7e1; --loop-border: #475b7b; --loop-orange: #ff956d; color: #f4f7ff; background: #0f172a; border: 1px solid #283a58; border-radius: 23px; padding: 28px; box-shadow: 0 24px 65px #0f172a18; }
.signal-studio-stage button { font: inherit; cursor: pointer; min-height: 44px; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
.signal-studio-stage button:disabled { cursor: default; }
.signal-studio-stage button:focus-visible, .signal-studio-stage input:focus-visible { outline: 2px solid #ffb99b; outline-offset: 4px; }
.loop-topbar { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 24px; }
.loop-name { font-size: 21px; font-weight: 650; letter-spacing: -.04em; display: block; }
.loop-key { display: block; font-size: 11px; margin-top: 6px; color: var(--loop-muted); font-variant-numeric: tabular-nums; }
.loop-transport { display: flex; align-items: center; gap: 10px; }
.loop-play { background: #ff956d; color: #10192b; border: 1px solid #ff956d; padding: 12px 18px; border-radius: 9px; display: inline-flex; align-items: center; gap: 12px; font-weight: 650 !important; font-size: 13px !important; min-width: 151px; }
.loop-play:hover { background: #ffb18f; }
.loop-play[aria-pressed=true] { background: #e3ecff; border-color: #e3ecff; }
.loop-play > span:first-child { font-size: 10px; }
.loop-sound { background: transparent; border: 1px solid var(--loop-border); color: #d5e0f5; border-radius: 9px; padding: 10px 13px; font-size: 11px !important; min-width: 86px; }
.loop-sound[aria-pressed=true] { border-color: #98b8f1; color: #e7efff; }
.loop-scenes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; margin-bottom: 24px; }
.loop-scenes button { display: flex; align-items: center; gap: 13px; text-align: left; padding: 14px 17px; color: #eef3ff; background: #142139; border: 1px solid var(--loop-border); border-radius: 10px; transition: background .15s ease, border-color .15s ease; }
.loop-scenes button:hover { background: #1e2e49; }
.loop-scenes button[aria-pressed=true] { background: #243751; border-color: #ff956d; }
.loop-scenes strong { display: block; font-size: 14px; font-weight: 550; letter-spacing: -.015em; }
.loop-scenes small { display: block; font-size: 10px; line-height: 1.5; color: #c1cee3; margin-top: 4px; }
.scene-symbol { font-size: 29px; line-height: 1; width: 32px; text-align: center; color: #ffac88; flex: 0 0 auto; }
.scene-arcade { color: #99bfff; }
.scene-float { color: #c9baff; }
.loop-playground { display: grid; grid-template-columns: minmax(0, 1fr) 244px; gap: 25px; }
.loop-performance { min-width: 0; }
.loop-field { position: relative; border: 1px solid #3c526f; border-radius: 13px; background: #0b1426; overflow: hidden; }
.signal-canvas, .signal-studio-fallback { display: block; width: 100%; aspect-ratio: 1200 / 680; height: auto; }
.signal-canvas { cursor: crosshair; touch-action: none; }
.signal-canvas:focus-visible { outline: 3px solid #ffac88; outline-offset: -4px; }
.signal-canvas.is-dragging { cursor: grabbing; }
.loop-field-caption { position: absolute; bottom: 12px; left: 13px; right: 13px; display: flex; align-items: center; justify-content: space-between; gap: 10px; pointer-events: none; color: #d0def4; font-size: 10px; }
.loop-field-caption span { background: #0c152be8; padding: 5px 8px; border-radius: 5px; }
.loop-field-caption span:last-child { color: #ffb89c; font-variant-numeric: tabular-nums; }
.loop-live { margin-top: 17px; }
.loop-label { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 11px; color: #ecf1fc; margin-bottom: 11px; }
.loop-label > span:last-child:not(:first-child) { font-size: 10px; color: var(--loop-muted); }
.signal-keyboard { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 6px; }
.signal-keyboard button { background: #1a2942; border: 1px solid #526a90; border-radius: 7px; color: #f0f5ff; padding: 8px 9px; text-align: left; transition: background .12s ease, transform .12s ease; }
.signal-keyboard button > span { display: block; color: #bccde8; font-size: 9px; }
.signal-keyboard button strong { display: block; font-weight: 550; font-size: 15px; margin-top: 9px; }
.signal-keyboard button:hover { background: #2a4266; transform: translateY(-2px); }
.signal-keyboard button.is-current { background: #ffad8c; border-color: #ffad8c; color: #10192b; transform: translateY(2px); }
.signal-keyboard button.is-current > span { color: #29374b; }
.loop-mixer { padding-top: 2px; }
.loop-layers { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.loop-layers button { display: flex; align-items: center; gap: 9px; padding: 10px 12px; border-radius: 7px; border: 1px solid #526a90; color: #c4d3e9; background: #152138; font-size: 12px; }
.loop-layers button > span { color: #879abb; font-size: 8px; }
.loop-layers button[aria-pressed=true] { color: #f3f6ff; background: #253b5f; border-color: #91b2ee; }
.loop-layers button[aria-pressed=true] > span { color: #ffb08a; }
.loop-slider { margin-top: 21px; }
.loop-slider label { display: flex; justify-content: space-between; align-items: baseline; font-size: 12px; }
.loop-slider output { color: #d3e2fb; font-size: 11px; font-variant-numeric: tabular-nums; }
.loop-slider input { display: block; width: 100%; height: 32px; margin: 3px 0; accent-color: #ffad8c; cursor: ew-resize; }
.loop-slider > div { display: flex; justify-content: space-between; color: var(--loop-muted); font-size: 9px; }
.loop-remix { margin-top: 24px; display: flex; justify-content: center; align-items: center; gap: 10px; width: 100%; border: 1px solid #dca27f; border-radius: 8px; background: #362b2b; color: #ffd0b9; font-size: 12px !important; }
.loop-remix:hover { background: #4b3630; }
.loop-remix span { font-size: 23px; }
.loop-reset { width: 100%; font-size: 10px !important; color: #c0cfe5; border: 0; background: transparent; }
.loop-reset:hover { color: #fff; }
.loop-sequencer { margin-top: 27px; padding-top: 25px; border-top: 1px solid #394d6b; }
.loop-sequence-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 17px; }
.loop-sequence-heading h3 { font-size: 18px; font-weight: 550; letter-spacing: -.025em; }
.loop-sequence-heading p { font-size: 11px; color: var(--loop-muted); }
.loop-pattern { display: grid; grid-template-columns: 70px minmax(0, 1fr); align-items: center; gap: 15px; margin-top: 7px; }
.loop-row-name { color: #c7d5ec; font-size: 11px; }
.loop-steps { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 7px; }
.loop-steps button { border: 1px solid #526786; border-radius: 6px; background: #16233a; color: #c8d6ed; min-width: 0; position: relative; font-size: 12px; }
.loop-steps button:hover { background: #263c5d; border-color: #b4cef5; }
.loop-steps button:nth-child(4n + 1) { border-left-width: 3px; }
.loop-steps button[aria-pressed=true] { background: #89b4ff; border-color: #adcaff; color: #10233d; }
.loop-steps button[data-signal-drum=snare][aria-pressed=true] { background: #c5b9ff; border-color: #d4ccff; color: #231b3b; }
.loop-steps button[data-signal-drum=hat][aria-pressed=true] { background: #9edbd1; border-color: #b5ece4; color: #183931; }
.loop-melody-steps button { background: #4a332c; border-color: #c58c72; color: #ffcfb7; }
.loop-melody-steps button.is-empty { background: #16233a; border-color: #526786; color: #bdcbe0; }
.loop-steps button.is-now { outline: 2px solid #fff0d5; outline-offset: 1px; }
.loop-steps button > span { font-size: 15px; line-height: 1; }
.signal-studio-status { color: #c0cfe7; font-size: 11px; line-height: 1.6; margin-top: 22px; min-height: 18px; }
.signal-noscript { color: #c0cfe7; font-size: 12px; line-height: 1.7; margin-top: 20px; }
.signal-studio:not(.is-enhanced) [data-instrument-controls], .signal-studio:not(.is-enhanced) .signal-canvas, .signal-studio:not(.is-enhanced) .loop-field-caption, .signal-studio:not(.is-enhanced) .signal-studio-status { display: none; }
.signal-studio:not(.is-enhanced) .loop-playground { display: block; }
.signal-studio.is-enhanced .signal-studio-fallback, .signal-studio.is-enhanced .signal-noscript { display: none; }
@media (max-width: 960px) {
  .signal-studio-intro { gap: 36px; }
  .signal-studio-stage { padding: 24px; }
  .loop-playground { grid-template-columns: minmax(0, 1fr) 216px; gap: 18px; }
  .signal-canvas { aspect-ratio: 1.25; }
  .loop-scenes button { padding: 12px; gap: 8px; }
  .loop-scenes small { font-size: 9px; }
  .scene-symbol { font-size: 25px; width: 28px; }
  .loop-field-caption span:last-child { display: none; }
}
@media (max-width: 700px) {
  .signal-studio-intro { display: block; margin-bottom: 30px; }
  .signal-studio-lede { margin-top: 24px; font-size: 14px; padding-left: 20px; }
  .signal-studio-stage { padding: 18px; border-radius: 17px; }
  .loop-topbar { display: block; position: sticky; top: 0; z-index: 3; background: #0f172a; padding-block: 14px; margin-top: -14px; margin-bottom: 4px; }
  .loop-topbar > div:first-child { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
  .loop-key { margin: 0; font-size: 10px; }
  .loop-transport { margin-top: 18px; }
  .loop-play { flex: 1; justify-content: center; }
  .loop-scenes { gap: 6px; margin-bottom: 17px; }
  .loop-scenes button { display: block; text-align: center; padding: 12px 5px; }
  .scene-symbol { display: block; width: auto; margin-bottom: 9px; }
  .loop-scenes strong { font-size: 11px; }
  .loop-scenes small { display: none; }
  .loop-playground { display: block; }
  .signal-canvas { aspect-ratio: 1.2; }
  .loop-field-caption { font-size: 9px; bottom: 9px; left: 9px; }
  .loop-live { margin-top: 16px; }
  .loop-label > span:last-child:not(:first-child) { font-size: 9px; }
  .signal-keyboard { gap: 5px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .signal-keyboard button { padding: 8px 10px; }
  .signal-keyboard button strong { font-size: 16px; margin-top: 3px; }
  .loop-mixer { margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
  .loop-mixer > .loop-label, .loop-layers, .loop-remix, .loop-reset { grid-column: 1 / -1; }
  .loop-layers { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 5px; }
  .loop-layers button { padding: 8px 4px; gap: 5px; font-size: 10px; justify-content: center; }
  .loop-layers button > span { font-size: 6px; }
  .loop-slider { margin-top: 22px; }
  .loop-slider label { font-size: 11px; }
  .loop-slider output { font-size: 10px; }
  .loop-slider > div { font-size: 8px; }
  .loop-remix { margin-top: 22px; }
  .loop-sequencer { margin-top: 17px; padding-top: 22px; }
  .loop-sequence-heading { display: block; margin-bottom: 19px; }
  .loop-sequence-heading p { margin-top: 6px; font-size: 10px; }
  .loop-pattern { display: block; margin-top: 14px; }
  .loop-row-name { display: block; margin-bottom: 7px; font-size: 10px; }
  .loop-steps { gap: 5px; }
  .loop-steps button { min-height: 42px; font-size: 10px; }
  .signal-studio-status { font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .loop-scenes button, .signal-keyboard button { transition: none; }
  .signal-keyboard button:hover, .signal-keyboard button.is-current { transform: none; }
}