/**
 * @file style.css
 * @brief Dieter Rams / Braun functionalist industrial design system for the ambient synthesizer.
 * "Weniger, aber besser" - Less, but better.
 */

:root {
  /* Braun Light Chassis Theme (Default) */
  --bg-app: #ECEBE4;
  --bg-panel: #E2E0D8;
  --bg-panel-inset: #D7D5CC;
  --bg-bezel: #121414;
  --border-line: #CBC8BD;
  --border-subtle: #D8D6CD;
  --text-primary: #1C1D1E;
  --text-secondary: #5E6064;
  --text-muted: #8E9094;
  --knob-cap: #D4D2C9;
  --knob-border: #BBB8AD;
  --knob-indicator: #1C1D1E;
  --knob-track: #D0CEC4;
  --knob-fill: #1C1D1E;
  --braun-orange: #EE592B;
  --braun-orange-glow: rgba(238, 89, 43, 0.45);
  --braun-green: #2A7B4C;
  --braun-amber: #E5A93C;
  --phosphor-color: #24FF6A;
  --phosphor-glow: rgba(36, 255, 106, 0.4);
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Consolas", "Roboto Mono", monospace;
  --panel-radius: 4px;
}

[data-theme="dark"],
[data-theme="matte-black"] {
  /* Braun Dark Anthracite / Matte Black Theme */
  --bg-app: #141517;
  --bg-panel: #1E2023;
  --bg-panel-inset: #151618;
  --bg-bezel: #0A0B0C;
  --border-line: #3A3A3A;
  --border-subtle: #2C2E33;
  --text-primary: #F0F0F0;
  --text-secondary: #BDBDBD;
  --text-muted: #8E8E8E;
  --text-dim: #8E8E8E;
  --knob-cap: #2B2D31;
  --knob-border: #4A4D52;
  --knob-indicator: #F0F0F0;
  --knob-track: #2A2C30;
  --knob-fill: #EE592B;
  --braun-orange: #EE592B;
  --braun-orange-glow: rgba(238, 89, 43, 0.55);
  --braun-green: #24FF6A;
  --braun-amber: #F0B429;
  --phosphor-color: #24FF6A;
  --phosphor-glow: rgba(36, 255, 106, 0.55);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-user-select: none;
  user-select: none;
}

html {
  overscroll-behavior: none;
  overscroll-behavior-y: auto;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  height: 100%;
}

body {
  overscroll-behavior: none;
  overscroll-behavior-y: auto;
  overflow-y: auto;
  overflow-x: hidden;
  touch-action: pan-y;
  min-height: 100vh;
  min-height: 100dvh;
  background-color: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: max(24px, env(safe-area-inset-top))
           max(16px, env(safe-area-inset-right))
           max(40px, env(safe-area-inset-bottom))
           max(16px, env(safe-area-inset-left));
  transition: background-color 0.25s ease, color 0.25s ease;
}

main {
  touch-action: pan-y;
}

/* --- Chassis Frame --- */
.braun-chassis {
  touch-action: pan-y;
  width: 100%;
  max-width: 1240px;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: var(--panel-radius);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  overflow-y: visible;
  display: flex;
  flex-direction: column;
}

/* Structural cards and section headers permit vertical page scrolling */
.braun-drone-card,
.braun-section,
.braun-scope-container,
.braun-left-column,
.braun-right-column,
.braun-card-header,
.braun-deck-header,
.braun-section-header,
.braun-chord-deck,
.braun-vector-deck,
.braun-chime-deck {
  touch-action: pan-y;
}

/* --- Header / Top Bar --- */
.braun-header {
  display: flex;
  flex-direction: column;
  padding: 0;
  border-bottom: 1px solid var(--border-line);
  background-color: var(--bg-panel);
}

.braun-header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  flex-wrap: wrap;
  gap: 12px 16px;
}

.braun-logo-group {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.braun-brand {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.braun-model {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.braun-utility-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.braun-top-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.braun-top-controls.braun-tuning-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  border-top: 1px solid var(--border-line);
  background-color: var(--bg-panel-inset);
  flex-wrap: wrap;
  gap: 10px 16px;
}

.braun-tuning-cluster {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.braun-preset-cluster {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* --- Patch Export & Load Buttons --- */
.braun-patch-group {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.braun-patch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  height: 30px;
  line-height: 1;
  padding: 0 12px;
  box-sizing: border-box;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.braun-patch-btn:hover {
  border-color: var(--text-muted);
  background-color: var(--knob-track);
}

.braun-patch-btn:active,
.braun-patch-btn.is-active {
  background-color: var(--braun-orange);
  color: #FFF;
  border-color: var(--braun-orange);
  box-shadow: 0 0 10px var(--braun-orange-glow);
}

.braun-patch-icon {
  font-size: 12px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* --- Master Power & Status Buttons --- */
.braun-power-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  height: 30px;
  padding: 0 14px;
  box-sizing: border-box;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.braun-power-btn:hover {
  border-color: var(--text-muted);
}

.braun-power-btn.is-active {
  background-color: var(--braun-orange);
  color: #FFF;
  border-color: var(--braun-orange);
  box-shadow: 0 0 12px var(--braun-orange-glow);
}

.braun-led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #7A7C80;
  display: inline-block;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.braun-led.is-active {
  background-color: var(--braun-orange);
  box-shadow: 0 0 8px var(--braun-orange-glow);
}

.braun-power-btn.is-active .braun-led {
  background-color: #FFF;
  box-shadow: 0 0 6px #FFF;
}

/* --- Record Button --- */
.braun-record-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  height: 30px;
  padding: 0 12px;
  box-sizing: border-box;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
}

.braun-record-btn.is-recording {
  background-color: #D32F2F;
  color: #FFF;
  border-color: #D32F2F;
  animation: pulse-red 1.4s infinite;
}

@keyframes pulse-red {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.75; }
}

/* --- Preset / Reset Button --- */
.braun-reset-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  height: 30px;
  line-height: 1;
  padding: 0 12px;
  box-sizing: border-box;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.braun-reset-btn:hover {
  border-color: var(--text-muted);
  background-color: var(--knob-track);
}

.braun-reset-btn:active,
.braun-reset-btn.is-active {
  background-color: var(--braun-orange);
  color: #FFF;
  border-color: var(--braun-orange);
  box-shadow: 0 0 10px var(--braun-orange-glow);
}

.braun-reset-icon {
  font-size: 13px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.braun-reset-btn:active .braun-reset-icon,
.braun-reset-btn.is-active .braun-reset-icon {
  transform: rotate(-360deg);
}

[data-theme="dark"] .braun-reset-btn,
[data-theme="matte-black"] .braun-reset-btn,
[data-theme="dark"] .braun-patch-btn,
[data-theme="matte-black"] .braun-patch-btn,
[data-theme="dark"] .braun-record-btn,
[data-theme="matte-black"] .braun-record-btn,
[data-theme="dark"] .braun-power-btn,
[data-theme="matte-black"] .braun-power-btn,
[data-theme="dark"] .braun-select,
[data-theme="matte-black"] .braun-select {
  background-color: #212327;
  border-color: #3A3D44;
  color: #F0F0F0;
}

[data-theme="dark"] .braun-reset-btn:hover,
[data-theme="matte-black"] .braun-reset-btn:hover,
[data-theme="dark"] .braun-patch-btn:hover,
[data-theme="matte-black"] .braun-patch-btn:hover,
[data-theme="dark"] .braun-record-btn:hover,
[data-theme="matte-black"] .braun-record-btn:hover,
[data-theme="dark"] .braun-power-btn:hover,
[data-theme="matte-black"] .braun-power-btn:hover,
[data-theme="dark"] .braun-select:hover,
[data-theme="matte-black"] .braun-select:hover {
  background-color: #2B2E33;
  border-color: #F0F0F0;
  color: #FFFFFF;
}

[data-theme="dark"] .braun-label-inline,
[data-theme="matte-black"] .braun-label-inline {
  color: #BDBDBD;
}

/* --- Theme Toggle & Selects --- */
.braun-select-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.braun-label-inline {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.braun-select {
  background-color: var(--bg-panel-inset);
  color: var(--text-primary);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  height: 30px;
  padding: 0 10px;
  box-sizing: border-box;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  outline: none;
}

/* --- Main Layout Grid --- */
.braun-body-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  border-bottom: 1px solid var(--border-line);
}

@media (max-width: 1060px) {
  .braun-header-main {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .braun-utility-group {
    width: 100%;
    justify-content: flex-start;
  }
  .braun-top-controls.braun-tuning-toolbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .braun-tuning-cluster {
    width: 100%;
    flex-wrap: wrap;
  }
  .braun-preset-cluster {
    width: 100%;
  }
  .braun-body-grid {
    grid-template-columns: 1fr;
  }
  .braun-left-column {
    border-right: none;
    border-bottom: 1px solid var(--border-line);
  }
  .braun-scope-container,
  .braun-scope-bezel {
    max-width: 540px;
    margin: 0 auto;
    width: 100%;
  }
}

/* --- Left Column: Scope & System --- */
.braun-left-column {
  border-right: 1px solid var(--border-line);
  background-color: var(--bg-panel);
  display: flex;
  flex-direction: column;
}

.braun-scope-container {
  padding: 16px;
  border-bottom: 1px solid var(--border-line);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.braun-scope-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.braun-panel-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.braun-scope-modes {
  display: flex;
  gap: 4px;
}

.braun-mode-tab {
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  color: var(--text-secondary);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 3px 6px;
  border-radius: 2px;
  cursor: pointer;
}

.braun-mode-tab.is-active {
  background-color: var(--text-primary);
  color: var(--bg-panel);
  border-color: var(--text-primary);
}

.braun-scope-bezel {
  background-color: var(--bg-bezel);
  border: 2px solid #000;
  border-radius: 4px;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.85);
  overflow: hidden;
  position: relative;
  width: 100%;
  height: 180px;
}

.braun-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* --- System Controls in Left Column --- */
.braun-system-section {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.braun-knobs-row {
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
}

/* --- Right Column: Synthesis & Generative Engines --- */
.braun-right-column {
  display: flex;
  flex-direction: column;
}

.braun-section {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-line);
}

.braun-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.braun-subtitle {
  font-size: 10px;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

[data-theme="dark"] .braun-subtitle,
[data-theme="matte-black"] .braun-subtitle {
  color: #BDBDBD;
}

/* --- Solar 42n Twin Drone Voices Grid --- */
.braun-drones-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 834px) {
  .braun-drones-grid {
    grid-template-columns: 1fr;
  }
}

.braun-drone-card {
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.braun-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.braun-wave-toggles {
  display: flex;
  gap: 4px;
}

.braun-wave-btn {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  color: var(--text-secondary);
  font-size: 9px;
  font-weight: 600;
  padding: 3px 6px;
  border-radius: 2px;
  cursor: pointer;
  text-transform: uppercase;
}

.braun-wave-btn.is-active {
  background-color: var(--text-primary);
  color: var(--bg-panel);
}

/* --- Solar 42n Quick-Snap Tuning Buttons & Knobs Grid --- */
.braun-drone-snap-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  padding: 6px 0 4px;
  border-top: 1px solid var(--border-line);
}

.braun-drone-knobs-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  align-items: flex-start;
  justify-items: center;
}

.braun-drone-level-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 4px;
  border-top: 1px dashed var(--border-subtle);
  margin-top: 2px;
}

.braun-snap-toggles {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.braun-snap-btn {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  color: var(--text-secondary);
  font-size: 8.5px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 2.5px 6px;
  border-radius: 2px;
  cursor: pointer;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.12s ease;
}

.braun-snap-btn:hover {
  background-color: var(--bg-app);
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.braun-snap-btn.is-active {
  background-color: var(--bg-panel);
  color: var(--text-primary);
  border-color: var(--braun-orange);
}

.braun-snap-btn.is-active .braun-led {
  background-color: var(--braun-orange);
  box-shadow: 0 0 5px var(--braun-orange);
}

.braun-drone-status-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  padding: 4px 8px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--text-secondary);
}

.braun-drone-status-btn.is-active {
  background-color: var(--braun-orange);
  color: #FFF;
  border-color: var(--braun-orange);
}

.braun-drone-status-btn.is-active .braun-led {
  background-color: #FFF;
}

/* --- Eno Asynchronous Phase Loops Panel --- */
.braun-loops-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.braun-loop-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  padding: 8px 12px;
  border-radius: 3px;
}

.braun-loop-id {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-primary);
  width: 45px;
}

.braun-loop-note {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  width: 40px;
}

.braun-loop-bar-container {
  flex: 1;
  height: 6px;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.braun-loop-progress {
  height: 100%;
  width: 0%;
  background-color: var(--braun-orange);
  transition: width 0.05s linear;
}

.braun-loop-period {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  width: 50px;
  text-align: right;
}

/* --- Brian Eno Generative Audio Processing Sub-Panels --- */
.braun-eno-panels {
  display: grid;
  grid-template-columns: 1.22fr 1fr;
  gap: 12px;
}

@media (max-width: 900px) {
  .braun-eno-panels {
    grid-template-columns: 1fr;
  }
}

.braun-eno-subpanel {
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  touch-action: pan-y;
}

.braun-subpanel-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--border-line);
  padding-bottom: 4px;
}

.braun-subpanel-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.braun-subpanel-subtitle {
  font-size: 9px;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.braun-eno-knobs-row {
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
}

/* --- Performance Deck: 2x5 Chords Matrix & Braun AS 42 Vector Touchpad --- */
.braun-play-section {
  padding: 16px 24px;
  background-color: var(--bg-panel);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.braun-performance-split {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 16px;
  align-items: stretch;
}

@media (max-width: 1040px) {
  .braun-performance-split {
    grid-template-columns: 1fr;
  }
  .braun-vector-deck,
  .braun-vector-surface-box {
    max-width: 540px;
    margin: 0 auto;
    width: 100%;
  }
}

.braun-chord-deck,
.braun-vector-deck {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: var(--panel-radius);
  padding: 12px;
  box-sizing: border-box;
}

.braun-deck-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-line);
}

.braun-chord-title-group {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.braun-chord-speed-switch {
  display: flex;
  align-items: center;
  gap: 6px;
}

.braun-speed-label {
  font-size: 8.5px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.braun-speed-toggles {
  display: inline-flex;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  padding: 1px;
  gap: 1px;
}

.braun-speed-btn {
  background-color: transparent;
  border: none;
  border-radius: 2px;
  padding: 2px 6px;
  font-size: 8.5px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color 0.12s ease, color 0.12s ease;
  text-transform: uppercase;
  line-height: 1.1;
}

.braun-speed-btn:hover {
  color: var(--text-primary);
}

.braun-speed-btn.is-active {
  background-color: var(--text-primary);
  color: var(--bg-panel);
}

[data-theme="dark"] .braun-speed-toggles,
[data-theme="matte-black"] .braun-speed-toggles {
  background-color: #1A1C20;
  border-color: #383B44;
}

[data-theme="dark"] .braun-speed-btn,
[data-theme="matte-black"] .braun-speed-btn {
  color: #9E9E9E;
}

[data-theme="dark"] .braun-speed-btn:hover,
[data-theme="matte-black"] .braun-speed-btn:hover {
  color: #FFFFFF;
}

[data-theme="dark"] .braun-speed-btn.is-active,
[data-theme="matte-black"] .braun-speed-btn.is-active {
  background-color: var(--braun-orange);
  color: #FFFFFF;
}

.braun-badge {
  font-size: 9px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  padding: 2px 6px;
  text-transform: uppercase;
}

.braun-chord-macros-grid,
.braun-chord-macros-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(2, 72px);
  height: 152px;
  min-height: 152px;
  max-height: 152px;
  gap: 8px;
  box-sizing: border-box;
}

@media (max-width: 680px) {
  .braun-chord-macros-grid,
  .braun-chord-macros-row {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(6, 68px);
    height: auto;
    min-height: auto;
    max-height: none;
  }
  .braun-chord-macro-btn {
    height: 68px;
    min-height: 68px;
    max-height: 68px;
  }
}

.braun-chord-macro-btn {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  padding: 5px 6px 4px 6px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  height: 72px;
  min-height: 68px;
  max-height: 72px;
  box-sizing: border-box;
  gap: 2px;
  cursor: pointer;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  transition: background-color 0.12s ease, border-color 0.12s ease, transform 0.08s ease;
  position: relative;
  overflow: hidden;
}

.braun-chord-macro-btn:hover {
  background-color: var(--bg-app);
  border-color: var(--text-primary);
}

.braun-chord-macro-btn.is-active,
.braun-chord-macro-btn:active {
  background-color: var(--text-primary);
  color: var(--bg-panel);
  border-color: var(--text-primary);
  transform: translateY(1px);
}

.braun-chord-macro-btn.is-active .braun-chord-desc,
.braun-chord-macro-btn:active .braun-chord-desc {
  color: var(--bg-app);
}

.braun-chord-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.braun-chord-title {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: calc(100% - 18px);
}

.braun-chord-shortcut {
  font-size: 8.5px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  padding: 1px 4px;
  line-height: 1.1;
  min-width: 14px;
  text-align: center;
}

.braun-chord-macro-btn:hover .braun-chord-shortcut {
  background-color: var(--bg-panel);
  border-color: var(--text-secondary);
}

.braun-chord-macro-btn.is-active .braun-chord-shortcut,
.braun-chord-macro-btn:active .braun-chord-shortcut {
  background-color: var(--braun-orange);
  color: #FFF;
  border-color: var(--braun-orange);
}

.braun-chord-desc {
  font-size: 8px;
  color: var(--text-secondary);
  line-height: 1.22;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
  word-break: break-word;
  padding-bottom: 2px;
}

[data-theme="dark"] .braun-chord-macro-btn,
[data-theme="matte-black"] .braun-chord-macro-btn {
  background-color: #212327;
  border-color: #3A3D44;
}

[data-theme="dark"] .braun-chord-macro-btn:hover,
[data-theme="matte-black"] .braun-chord-macro-btn:hover {
  background-color: #2B2E33;
  border-color: #F0F0F0;
}

[data-theme="dark"] .braun-chord-title,
[data-theme="matte-black"] .braun-chord-title {
  color: #F0F0F0;
}

[data-theme="dark"] .braun-chord-desc,
[data-theme="matte-black"] .braun-chord-desc {
  color: #BDBDBD;
}

[data-theme="dark"] .braun-chord-shortcut,
[data-theme="matte-black"] .braun-chord-shortcut {
  background-color: #2D3036;
  color: #F0F0F0;
  border-color: #484C55;
}

[data-theme="dark"] .braun-chord-macro-btn.is-active .braun-chord-title,
[data-theme="matte-black"] .braun-chord-macro-btn.is-active .braun-chord-title,
[data-theme="dark"] .braun-chord-macro-btn:active .braun-chord-title,
[data-theme="matte-black"] .braun-chord-macro-btn:active .braun-chord-title {
  color: #141517;
}

[data-theme="dark"] .braun-chord-macro-btn.is-active .braun-chord-desc,
[data-theme="matte-black"] .braun-chord-macro-btn.is-active .braun-chord-desc,
[data-theme="dark"] .braun-chord-macro-btn:active .braun-chord-desc,
[data-theme="matte-black"] .braun-chord-macro-btn:active .braun-chord-desc {
  color: #2C2E33;
}

/* --- Braun AS 42 Precision Vector Touchpad Surface --- */
.braun-vector-pad-assembly {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
}

.braun-vector-pad-wrapper {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  outline: none;
}

.braun-vector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 4px;
}

.braun-vector-title-group {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.braun-vector-axis-meta {
  font-size: 9px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

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

.braun-vector-mini-btn {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  padding: 3px 8px;
  font-size: 9px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: background-color 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.braun-vector-mini-btn:hover {
  background-color: var(--bg-app);
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.braun-vector-mini-btn.is-active {
  background-color: var(--braun-orange);
  color: #FFF;
  border-color: var(--braun-orange);
}

.braun-vector-mini-btn.is-active .braun-led {
  background-color: #FFF;
}

.braun-vector-surface-box {
  position: relative;
  height: 152px;
  min-height: 152px;
  max-height: 152px;
  background-color: var(--bg-bezel);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  overflow: hidden;
  cursor: crosshair;
  touch-action: none;
  transition: border-color 0.15s ease;
}

.braun-vector-surface-box.is-active {
  border-color: var(--braun-orange);
  box-shadow: inset 0 0 12px rgba(238, 89, 43, 0.25);
}

.braun-vector-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.braun-vector-axis-label {
  position: absolute;
  font-size: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.90);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.85);
  pointer-events: none;
  text-transform: uppercase;
  z-index: 2;
}

.braun-vector-axis-label.label-x-min { bottom: 4px; left: 8px; }
.braun-vector-axis-label.label-x-max { bottom: 4px; right: 8px; }
.braun-vector-axis-label.label-y-max { top: 4px; left: 8px; }
.braun-vector-axis-label.label-y-min { bottom: 4px; left: 50%; transform: translateX(-50%); }

.braun-vector-readout,
.braun-chord-readout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 8px;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-secondary);
  height: 24px;
  box-sizing: border-box;
}

.braun-vector-coords,
.braun-chord-coords {
  display: flex;
  align-items: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.braun-vector-readout-val,
.braun-chord-readout-val {
  font-weight: 700;
  color: var(--text-primary);
}

.braun-vector-readout-indicator,
.braun-chord-readout-indicator {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}

/* --- Chime Strip Deck --- */
.braun-chime-deck {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.braun-chime-strip {
  display: flex;
  gap: 4px;
  width: 100%;
  overflow-x: auto;
  padding-bottom: 6px;
}

.braun-chime-key {
  flex: 1;
  min-width: 42px;
  height: 74px;
  box-sizing: border-box;
  background: linear-gradient(180deg, var(--bg-panel) 0%, var(--bg-panel-inset) 100%);
  border: 1px solid var(--border-line);
  border-radius: 3px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 5px 4px;
  cursor: pointer;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  transition: transform 0.08s ease, background 0.08s ease;
  position: relative;
}

.braun-chime-key > * {
  pointer-events: none;
}

.braun-chime-key:hover {
  border-color: var(--text-muted);
}

.braun-chime-key.is-pressed,
.braun-chime-key.is-active {
  background: var(--text-primary);
  color: var(--bg-panel);
  transform: translateY(2px);
}

.braun-key-indicator {
  width: 12px;
  height: 3px;
  background-color: var(--border-line);
  border-radius: 1px;
}

.braun-chime-key.is-pressed .braun-key-indicator,
.braun-chime-key.is-active .braun-key-indicator {
  background-color: var(--braun-orange);
  box-shadow: 0 0 6px var(--braun-orange);
}

.braun-key-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.braun-key-name {
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.braun-key-degree {
  font-size: 8.5px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.braun-chime-key.is-pressed .braun-key-degree,
.braun-chime-key.is-active .braun-key-degree {
  color: var(--bg-panel);
}

.braun-key-shortcut {
  font-size: 9.5px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  background-color: var(--bg-panel-inset);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  padding: 1px 4px;
  line-height: 1.1;
  min-width: 14px;
  text-align: center;
}

[data-theme="dark"] .braun-chime-key,
[data-theme="matte-black"] .braun-chime-key {
  background: linear-gradient(180deg, #25282D 0%, #1A1C1F 100%);
  border-color: #3A3D44;
}

[data-theme="dark"] .braun-chime-key:hover,
[data-theme="matte-black"] .braun-chime-key:hover {
  background: #2C2F36;
  border-color: #F0F0F0;
}

[data-theme="dark"] .braun-key-name,
[data-theme="matte-black"] .braun-key-name {
  color: #F0F0F0;
}

[data-theme="dark"] .braun-key-degree,
[data-theme="matte-black"] .braun-key-degree {
  color: #BDBDBD;
}

[data-theme="dark"] .braun-key-shortcut,
[data-theme="matte-black"] .braun-key-shortcut {
  background-color: #2B2E34;
  color: #F0F0F0;
  border-color: #484C55;
}

[data-theme="dark"] .braun-key-indicator,
[data-theme="matte-black"] .braun-key-indicator {
  background-color: #555963;
}

[data-theme="dark"] .braun-chime-key.is-pressed .braun-key-name,
[data-theme="matte-black"] .braun-chime-key.is-pressed .braun-key-name,
[data-theme="dark"] .braun-chime-key.is-active .braun-key-name,
[data-theme="matte-black"] .braun-chime-key.is-active .braun-key-name {
  color: #141517;
}

[data-theme="dark"] .braun-chime-key.is-pressed .braun-key-degree,
[data-theme="matte-black"] .braun-chime-key.is-pressed .braun-key-degree,
[data-theme="dark"] .braun-chime-key.is-active .braun-key-degree,
[data-theme="matte-black"] .braun-chime-key.is-active .braun-key-degree {
  color: #2C2E33;
}

[data-theme="dark"] .braun-chime-key.is-pressed .braun-key-shortcut,
[data-theme="matte-black"] .braun-chime-key.is-pressed .braun-key-shortcut,
[data-theme="dark"] .braun-chime-key.is-active .braun-key-shortcut,
[data-theme="matte-black"] .braun-chime-key.is-active .braun-key-shortcut {
  background-color: var(--braun-orange);
  color: #FFF;
  border-color: var(--braun-orange);
}

.braun-key-shortcut:empty {
  display: none;
}


/* --- Rotary Knob Component Styling --- */
.braun-knob-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  outline: none;
  cursor: pointer;
  touch-action: none;
  touch-action: pan-y;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

.braun-knob-wrapper:focus-visible .braun-knob-cap {
  outline: 2px solid var(--braun-orange);
}

.braun-knob-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-align: center;
  touch-action: pan-y;
  cursor: default;
}

.braun-knob-assembly {
  position: relative;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
}

.braun-knob-small .braun-knob-assembly {
  width: 42px;
  height: 42px;
}

.braun-knob-large .braun-knob-assembly {
  width: 64px;
  height: 64px;
}

.braun-knob-scale {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotate(140deg);
}

.braun-knob-track {
  fill: none;
  stroke: var(--knob-track);
  stroke-width: 4;
}

.braun-knob-fill {
  fill: none;
  stroke: var(--knob-fill);
  stroke-width: 4;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.04s linear;
}

.braun-knob-cap {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--knob-cap);
  border: 1px solid var(--knob-border);
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.12), inset 0 1px 1px rgba(255, 255, 255, 0.4);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.04s linear;
}

.braun-knob-small .braun-knob-cap {
  width: 28px;
  height: 28px;
}

.braun-knob-large .braun-knob-cap {
  width: 46px;
  height: 46px;
}

.braun-knob-indicator {
  position: absolute;
  top: 3px;
  width: 2px;
  height: 8px;
  background-color: var(--knob-indicator);
  border-radius: 1px;
}

.braun-knob-small .braun-knob-indicator {
  height: 6px;
}

.braun-knob-large .braun-knob-indicator {
  height: 10px;
}

.braun-knob-value-display {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-primary);
  text-align: center;
  min-width: 44px;
  touch-action: pan-y;
  cursor: default;
}

.braun-knob-unit {
  font-size: 8px;
  color: var(--text-muted);
  margin-left: 2px;
}

.braun-knob-direct-input {
  font-family: var(--font-mono);
  font-size: 10px;
  width: 48px;
  text-align: center;
  background: var(--bg-panel-inset);
  color: var(--text-primary);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  padding: 1px;
}

/* --- Footer / Manifesto --- */
.braun-footer {
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-panel);
  font-size: 10px;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.braun-footer a {
  color: var(--text-primary);
  text-decoration: none;
}