/* ============================================
   RedAV Lighting Dashboard v3 — Dark Maroon Theme
   Brand: Red Nightclub
   ============================================ */

:root {
  --bg-primary: #120808;
  --bg-secondary: #0e0606;
  --bg-panel: #0a0506;
  --bg-element: #1a0e10;
  --border-dim: #3a1018;
  --border-bright: #5a2030;
  --text-primary: #e8e2e0;
  --text-secondary: #9a8a88;
  --text-dim: #605050;
  --accent-bg: #3d1520;
  --accent-border: #6a2535;
  --accent-text: #dda0b0;
  --glow-spread: 8px;
  --pad-radius: 6px;
  --pad-size: 72px;
  --transition-speed: 0.15s;
  --master-brightness: 1;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 13px;
  overflow: hidden;
  height: 100vh;
  user-select: none;
}

/* ---- HEADER ---- */

#header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-dim);
  height: 64px;
  z-index: 300;
  position: relative;
}

#header h1 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #cc2222;
  flex-shrink: 0;
}

.version-tag {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #cc2222;
  vertical-align: middle;
  cursor: pointer;
}

.version-tag:hover {
  color: #ee4444;
}

.demo-badge {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #ffcc00;
  background: rgba(255, 204, 0, 0.12);
  border: 1px solid rgba(255, 204, 0, 0.3);
  border-radius: 3px;
  padding: 1px 6px;
  vertical-align: middle;
  margin-left: 2px;
}

/* ---- HEADER INFO BOXES ---- */

.header-info {
  display: flex;
  align-items: stretch;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.info-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  width: 110px;
  flex-shrink: 0;
}

.info-title {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-dim);
  text-transform: uppercase;
}

.info-value-box {
  background: var(--bg-panel);
  border: 1px solid var(--border-dim);
  border-radius: 4px;
  padding: 2px 8px;
  width: 100%;
  text-align: center;
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.info-value {
  font-size: 22px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
  line-height: 1;
}

/* BPM box states */
#info-bpm.active .info-value,
#info-bpm.active .bpm-input {
  color: #ff3333;
  opacity: var(--bpm-pulse, 1);
}

#info-bpm.active .info-value-box {
  border-color: #4a1818;
}

#info-bpm.inactive .info-value,
#info-bpm.inactive .bpm-input {
  color: var(--text-dim);
}

/* BPM input field (editable) */
.bpm-input {
  background: transparent;
  border: none;
  font-size: 22px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  width: 64px;
  text-align: center;
  font-family: inherit;
  outline: none;
  color: inherit;
  line-height: 1;
}
.bpm-input:focus {
  border-bottom: 1px solid currentColor;
}

/* FADE box states — full brightness when fade ON */
#info-fade.active .info-value {
  color: #4488ff;
}
#info-fade.active .info-value-box {
  border-color: #1a2a4a;
}
/* FADE box — muted when fade OFF but has a value */
#info-fade.muted .info-value {
  color: #2a4a7a;
}
#info-fade.inactive .info-value {
  color: var(--text-dim);
}

/* BEAT box states — full brightness when fade ON */
#info-beat.in-phrase .info-value {
  color: #44cc44;
}
#info-beat.in-phrase .info-value-box {
  border-color: #1a3a1a;
}
#info-beat.out-of-phrase .info-value {
  color: #ff8800;
}
#info-beat.out-of-phrase .info-value-box {
  border-color: #3a2a12;
}
/* BEAT box — muted when fade OFF */
#info-beat.in-phrase.muted .info-value {
  color: #2a6a2a;
}
#info-beat.in-phrase.muted .info-value-box {
  border-color: var(--border-dim);
}
#info-beat.out-of-phrase.muted .info-value {
  color: #8a4a00;
}
#info-beat.out-of-phrase.muted .info-value-box {
  border-color: var(--border-dim);
}
#info-beat.inactive .info-value {
  color: var(--text-dim);
}

/* Fade toggle button — sized like info-value-box */
.fade-toggle {
  background: var(--bg-panel);
  border: 1px solid var(--border-dim);
  color: var(--text-dim);
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.5px;
  transition: all var(--transition-speed);
  width: 80px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  align-self: flex-end;
}

.fade-toggle:hover {
  border-color: var(--border-bright);
}

.fade-toggle.active {
  background: #1a2a1a;
  border-color: #2a4a2a;
  color: #44cc44;
}

/* FADE button pulse during active fade */
@keyframes fade-btn-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.fade-toggle.fading {
  animation: fade-btn-pulse 0.8s ease-in-out infinite;
}

/* ---- FADE GROUP (FADE + BEAT + toggle container) ---- */

.fade-group {
  display: flex;
  align-items: stretch;
  gap: 8px;
  border: 1px solid color-mix(in srgb, var(--border-dim) 70%, transparent);
  border-radius: 6px;
  padding: 4px 8px;
  background: color-mix(in srgb, var(--bg-panel) 40%, var(--bg-secondary));
}

/* ---- HEADER CONTROLS ---- */

.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.status-dot {
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.status-dot.connected {
  background: #1a2a1a;
  color: #44cc44;
  border: 1px solid #2a4a2a;
}

.status-dot.disconnected {
  background: #2a1212;
  color: #cc4444;
  border: 1px solid #4a2020;
}

.header-btn {
  background: var(--bg-element);
  border: 1px solid var(--border-dim);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  transition: all var(--transition-speed);
}

.header-btn:hover {
  border-color: var(--border-bright);
  color: var(--text-primary);
}

.header-btn.active {
  background: var(--accent-bg);
  border-color: var(--accent-border);
  color: var(--accent-text);
}

/* ---- APP BODY (nav + screen container) ---- */

#app-body {
  display: flex;
  height: calc(100vh - 64px);
  overflow: hidden;
}

/* ---- NAV SIDEBAR (landscape default) ---- */

#main-nav {
  display: flex;
  flex-direction: column;
  width: 72px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-dim);
  flex-shrink: 0;
  padding: 8px 0;
  gap: 2px;
  z-index: 200;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 4px;
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: color var(--transition-speed), background var(--transition-speed);
  border-left: 2px solid transparent;
  font-family: inherit;
}

.nav-item:hover:not(.locked) {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
}

.nav-item.active {
  color: var(--accent-text);
  background: var(--accent-bg);
  border-left-color: var(--accent-border);
}

.nav-item.locked {
  opacity: 0.25;
  cursor: default;
}

/* ---- SCREEN CONTAINER ---- */

#screen-container {
  flex: 1;
  overflow: hidden;
  position: relative;
  min-width: 0;
}

.screen {
  display: none;
  width: 100%;
  height: 100%;
}

.screen.active {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow: hidden;
}

/* ---- SCREEN PLACEHOLDER ---- */

.screen-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
  gap: 8px;
}

.placeholder-label {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.placeholder-hint {
  font-size: 12px;
  color: var(--text-dim);
  opacity: 0.5;
}

/* ---- STATUS SCREEN ---- */

#status-cards {
  width: 100%;
  padding: 16px;
  overflow-y: auto;
  max-height: 100%;
}

.status-section {
  margin-bottom: 20px;
}

.status-section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 8px;
  padding-left: 2px;
}

.status-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 10px;
}

.status-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  overflow: hidden;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-dim);
  background: color-mix(in srgb, var(--bg-secondary) 60%, var(--bg-panel));
}

.card-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.card-body {
  padding: 6px 0;
}

.card-row {
  display: flex;
  align-items: center;
  padding: 4px 12px;
  gap: 8px;
  min-height: 26px;
}

.card-row:hover {
  background: rgba(255, 255, 255, 0.015);
}

.card-label {
  font-size: 11px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.card-value {
  font-size: 11px;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  margin-left: auto;
  text-align: right;
}

.card-detail {
  font-size: 10px;
  color: var(--text-dim);
  margin-left: auto;
  text-align: right;
}

.card-meta {
  font-size: 9px;
  color: var(--text-dim);
  width: 100%;
  padding-left: 20px;
  margin-top: -2px;
}

.card-subheader {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  padding: 8px 12px 2px;
  border-top: 1px solid color-mix(in srgb, var(--border-dim) 50%, transparent);
  margin-top: 4px;
}

.sub-row {
  padding-left: 16px;
}

/* Status dots */
.card-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.card-status-dot.status-online,
.card-status-dot.status-running,
.card-status-dot.status-connected {
  background: #44cc44;
  box-shadow: 0 0 4px rgba(68, 204, 68, 0.4);
}

.card-status-dot.status-offline,
.card-status-dot.status-stopped,
.card-status-dot.status-disconnected {
  background: #cc4444;
  box-shadow: 0 0 4px rgba(204, 68, 68, 0.3);
}

.card-status-dot.status-warning {
  background: #ccaa22;
  box-shadow: 0 0 4px rgba(204, 170, 34, 0.3);
}

.card-status-dot.status-unknown {
  background: #555555;
}

.card-status-dot.status-neutral {
  background: #333333;
}

/* Process and device rows */
.process-row,
.device-row {
  flex-wrap: wrap;
}

.device-row .card-meta {
  flex-basis: 100%;
}

/* ---- MAIN LAYOUT ---- */

#scale-wrapper {
  display: flex;
  gap: 16px;
  padding: 12px;
  align-items: start;
  transform-origin: top center;
}

/* ---- LEFT PANEL ---- */

#left-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 240px;
  flex-shrink: 0;
}

.control-section {
  background: var(--bg-panel);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  padding: 8px;
}

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

.section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

/* ---- BANK TABS ---- */

.bank-tabs {
  display: flex;
  gap: 2px;
}

.bank-tab {
  background: var(--bg-element);
  border: 1px solid var(--border-dim);
  color: var(--text-dim);
  padding: 2px 8px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 10px;
  font-weight: 600;
  transition: all var(--transition-speed);
}

.bank-tab:hover {
  border-color: var(--border-bright);
  color: var(--text-secondary);
}

.bank-tab.active {
  background: var(--accent-bg);
  border-color: var(--accent-border);
  color: var(--accent-text);
}

/* ---- KNOBS (as vertical sliders) ---- */

.knobs-row {
  display: flex;
  gap: 8px;
  justify-content: space-around;
}

.knob-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.knob-label {
  font-size: 9px;
  color: var(--text-secondary);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 50px;
}

.knob-slider-track {
  width: 20px;
  height: 80px;
  background: var(--bg-element);
  border: 1px solid color-mix(in srgb, var(--active-color, var(--border-dim)) 25%, var(--border-dim));
  border-radius: 4px;
  position: relative;
  cursor: pointer;
  overflow: hidden;
}

.knob-slider-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  border-radius: 0 0 3px 3px;
  transition: height 0.08s;
}

.knob-value {
  font-size: 10px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

/* ---- LASER BUTTONS ---- */

.laser-column {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.laser-btn {
  background: var(--bg-element);
  border: 2px solid color-mix(in srgb, var(--active-color, var(--border-dim)) 20%, var(--border-dim));
  border-radius: 4px;
  padding: 7px 11px;
  cursor: pointer;
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: border-color var(--transition-speed), color var(--transition-speed), background var(--transition-speed), box-shadow var(--transition-speed);
}

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

.laser-btn.active {
  border-color: var(--active-color, #3a86ff);
  color: var(--active-color, #3a86ff);
  background: color-mix(in srgb, var(--active-color, #3a86ff) 15%, var(--bg-element));
  box-shadow:
    0 0 8px color-mix(in srgb, var(--active-color, #3a86ff) 50%, transparent),
    0 0 20px color-mix(in srgb, var(--active-color, #3a86ff) 20%, transparent);
}

/* ---- FADERS ---- */

.faders-row {
  display: flex;
  gap: 8px;
  justify-content: space-around;
  align-items: flex-end;
}

.fader-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.fader-label {
  font-size: 9px;
  color: var(--text-secondary);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 50px;
}

.fader-track {
  width: 24px;
  height: 120px;
  background: var(--bg-element);
  border: 1px solid color-mix(in srgb, var(--active-color, var(--border-dim)) 25%, var(--border-dim));
  border-radius: 4px;
  position: relative;
  cursor: pointer;
  overflow: hidden;
}

.fader-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  border-radius: 0 0 3px 3px;
  transition: height 0.08s;
}

.fader-value {
  font-size: 10px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

/* Fade time fader special readout */
.fade-time-readout {
  font-size: 10px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
}

/* Laser FX fader — grey when off */
.fader-wrapper.laser-fx-off .fader-label {
  color: var(--text-dim);
}

/* Strobe fader animation */
@keyframes strobe-flicker {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0.15; }
}

@keyframes strobe-glow {
  0%, 49% { box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.15); }
  50%, 100% { box-shadow: inset 0 0 2px rgba(255, 255, 255, 0.03); }
}

.fader-wrapper.strobe-active .fader-fill {
  animation: strobe-flicker var(--strobe-speed, 500ms) steps(2) infinite;
}

.fader-wrapper.strobe-active .fader-track {
  animation: strobe-glow var(--strobe-speed, 500ms) steps(2) infinite;
}

/* ---- RIGHT PANEL ---- */

#right-panel {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

/* ---- PAD BANK SELECTORS ---- */

#pad-bank-selectors {
  display: flex;
  justify-content: center;
}

.pad-bank-group {
  display: flex;
  gap: 4px;
}

.pad-bank-tab {
  background: var(--bg-element);
  border: 1px solid var(--border-dim);
  color: var(--text-dim);
  padding: 4px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: all var(--transition-speed);
}

.pad-bank-tab:hover {
  border-color: var(--border-bright);
  color: var(--text-secondary);
}

.pad-bank-tab.active {
  background: var(--accent-bg);
  border-color: var(--accent-border);
  color: var(--accent-text);
}

/* ---- PAD GRIDS ---- */

#pad-grids-wrapper {
  display: flex;
  gap: 12px;
  align-items: start;
  justify-content: center;
}

.pad-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--bg-panel);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  padding: 8px;
}

.grid-bank-label {
  font-size: 13px;
  text-align: center;
  color: var(--text-secondary);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.pad-row {
  display: flex;
  gap: 6px;
}

.pad {
  width: var(--pad-size, 72px);
  height: var(--pad-size, 72px);
  flex: 0 0 auto;
  background: color-mix(in srgb, var(--active-color, var(--border-dim)) var(--col-intensity, 0%), var(--bg-element));
  border: 1px solid color-mix(in srgb, var(--active-color, var(--border-dim)) 20%, var(--border-dim));
  border-radius: var(--pad-radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 10px;
  font-weight: 500;
  color: var(--text-dim);
  padding: 4px;
  transition: border-color var(--transition-speed), color var(--transition-speed), box-shadow var(--transition-speed);
  position: relative;
  overflow: hidden;
  word-break: break-word;
  line-height: 1.2;
}

.pad:hover {
  border-color: color-mix(in srgb, var(--active-color, var(--border-bright)) 40%, var(--border-bright));
  color: var(--text-secondary);
}

.pad.active {
  border: 2px solid color-mix(in srgb, var(--active-color, #ffffff) calc(var(--master-brightness, 1) * 100%), var(--border-dim));
  color: #ffffff;
  background: color-mix(in srgb, var(--active-color, #ffffff) 20%, var(--bg-element));
  box-shadow:
    0 0 calc(var(--glow-spread) * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 50%, transparent),
    0 0 calc(20px * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 20%, transparent),
    inset 0 0 calc(12px * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 8%, transparent);
}

/* Beat pulse (only on active pads) */
.pad.beat-pulsing.active {
  opacity: var(--pulse-opacity, 1);
}

/* Fade-out transition — animates individual properties to avoid background bleed */
@keyframes pad-fade-out {
  from {
    color: #ffffff;
    background: color-mix(in srgb, var(--active-color, #ffffff) 20%, var(--bg-element));
    box-shadow:
      0 0 calc(var(--glow-spread) * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 50%, transparent),
      0 0 calc(20px * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 20%, transparent),
      inset 0 0 calc(12px * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 8%, transparent);
    border-color: color-mix(in srgb, var(--active-color, #ffffff) calc(var(--master-brightness, 1) * 100%), var(--border-dim));
  }
  to {
    color: var(--text-dim);
    background: var(--bg-element);
    box-shadow: none;
    border-color: var(--border-dim);
  }
}

.pad.fading-out {
  animation: pad-fade-out var(--fade-duration, 150ms) ease-out forwards !important;
}

/* Fade-in transition — animates individual properties to avoid background bleed */
@keyframes pad-fade-in {
  from {
    color: var(--text-dim);
    background: var(--bg-element);
    box-shadow: none;
    border-color: var(--border-dim);
  }
  to {
    color: #ffffff;
    background: color-mix(in srgb, var(--active-color, #ffffff) 20%, var(--bg-element));
    box-shadow:
      0 0 calc(var(--glow-spread) * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 50%, transparent),
      0 0 calc(20px * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 20%, transparent),
      inset 0 0 calc(12px * var(--master-brightness, 1)) color-mix(in srgb, var(--active-color, #ffffff) 8%, transparent);
    border-color: color-mix(in srgb, var(--active-color, #ffffff) calc(var(--master-brightness, 1) * 100%), var(--border-dim));
  }
}

.pad.fading-in {
  animation: pad-fade-in var(--fade-duration, 150ms) ease-in !important;
}

/* ---- ROW LABELS ---- */

.row-labels {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 24px;
  flex-shrink: 0;
}

.row-label {
  height: var(--pad-size, 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 0;
  width: 28px;
}

/* ---- GROUP LABELS (legacy, hidden) ---- */

#group-labels {
  display: none;
}

/* ---- UTILITY ---- */

.hidden {
  display: none !important;
}

/* ---- SCROLLBAR ---- */

::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-dim);
  border-radius: 2px;
}

/* ---- RESPONSIVE: PORTRAIT ---- */

@media (orientation: portrait) {
  #app-body {
    flex-direction: column;
  }

  #main-nav {
    flex-direction: row;
    width: 100%;
    height: 48px;
    border-right: none;
    border-top: 1px solid var(--border-dim);
    order: 1;
    padding: 0;
    justify-content: space-around;
    gap: 0;
  }

  .nav-item {
    flex: 1;
    border-left: none;
    border-top: 2px solid transparent;
    padding: 6px 4px;
    font-size: 9px;
  }

  .nav-item.active {
    border-left-color: transparent;
    border-top-color: var(--accent-border);
  }

  #screen-container {
    order: 0;
  }

  #scale-wrapper {
    flex-direction: column;
    align-items: center;
  }

  #left-panel {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
}