/* SUB Control UI – Clean, minimal interface with native sizing */

:root {
  color-scheme: dark;
  --bg: #0c1012;
  --rail: #151a1d;
  --panel: #f3f4f1;
  --card: #ffffff;
  --ink: #16191b;
  --muted: #727a7c;
  --line: #dfe2dd;
  --acid: #c9f277;
  --cyan: #72d8e8;
  --amber: #f2c675;
  --red: #f0958b;
  --shadow: 0 16px 50px rgba(0, 0, 0, 0.05);
  font-family: Inter, "SF Pro Display", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  font-weight: 300;
}

* { box-sizing: border-box; }
html {
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
}
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  font-size: 13px;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  zoom: 1.5625;
}
button, select, input { font: inherit; }

/* ── App Shell ── */
.app-shell {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: 236px 1fr;
  overflow: hidden;
  background: var(--panel);
  border-radius: calc(8px / 1.5625);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.05);
}
body.maximized .app-shell {
  border-radius: 0;
}

/* ── Left Rail (Windows Acrylic Frosted Glass with Blue Subsea Glow) ── */
.vehicle-rail {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 20px 18px 16px;
  background:
    radial-gradient(ellipse 110% 45% at 50% 28%, rgba(30, 144, 255, 0.18) 0%, rgba(0, 200, 255, 0.08) 45%, transparent 75%),
    radial-gradient(ellipse 130% 60% at 50% 0%, rgba(68, 120, 160, 0.22) 0%, transparent 75%),
    linear-gradient(175deg, #1b2328 0%, #12171a 50%, #0c1012 100%);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 
    inset -1px 0 0 rgba(255, 255, 255, 0.02),
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    inset 0 40px 80px -20px rgba(0, 170, 255, 0.12);
  color: #f1f4f2;
  overflow: hidden;
}
.vehicle-rail::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 35%, transparent 70%);
  z-index: 1;
}
.vehicle-rail > * {
  position: relative;
  z-index: 2;
}
.brand {
  display: flex;
  align-items: center;
  font-size: 14px;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: #f1f4f2;
}
.eyebrow {
  font-size: 9px;
  font-weight: 400;
  color: #727c80;
  letter-spacing: 0.03em;
}
.vehicle-rail > .eyebrow {
  margin-top: 18px;
}
.rov-stage {
  position: relative;
  height: min(32vh, 195px);
  min-height: 155px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.rov-stage::before {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 180, 255, 0.22) 0%, rgba(0, 120, 220, 0.08) 50%, transparent 75%);
  filter: blur(16px);
  pointer-events: none;
  z-index: 1;
}
.rov-stage.drag-over {
  border: 1px dashed rgba(79, 195, 247, 0.6);
  background: rgba(79, 195, 247, 0.06);
}
.water-ring {
  position: absolute;
  border: 1px solid rgba(0, 200, 255, 0.22);
  box-shadow: 0 0 14px rgba(0, 180, 255, 0.12);
  border-radius: 50%;
  transform: scaleY(0.55);
}
.water-ring.r1 { width: 175px; height: 175px; }
.water-ring.r2 { width: 125px; height: 125px; border-color: rgba(114, 216, 232, 0.32); }

.rov-stage #model-canvas {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  cursor: grab;
  touch-action: none;
}
.model-status {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  padding: 3px 8px;
  background: rgba(18, 24, 27, 0.85);
  border: 1px solid rgba(79, 195, 247, 0.25);
  border-radius: 6px;
  font-size: 8.5px;
  letter-spacing: 0.04em;
  color: #8edcf8;
  z-index: 5;
  pointer-events: none;
  white-space: nowrap;
  backdrop-filter: blur(6px);
  transition: opacity 0.4s ease;
}
.model-status.error {
  border-color: rgba(255, 82, 82, 0.5);
  color: #ff8a80;
  background: rgba(40, 15, 15, 0.9);
}
.model-status.fade-out {
  opacity: 0;
}
.model-tools {
  display: none !important;
}

.vehicle-name {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.vehicle-name small, .battery-card small {
  font-size: 8.5px;
  color: #687276;
  font-weight: 400;
}
.vehicle-name strong {
  font-size: 14.5px;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.vehicle-name span {
  font-size: 9.5px;
  color: #727c80;
}

.rail-bottom {
  margin-top: auto;
}
.battery-card {
  display: grid;
  grid-template-columns: 1fr auto;
  width: 100%;
  padding: 0 0 12px;
  text-align: left;
  color: inherit;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: transparent;
  cursor: pointer;
}
.battery-card::after { display: none !important; }
.battery-card:hover { transform: none !important; box-shadow: none !important; }
.battery-card > span {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.battery-card strong {
  font-size: 16px;
  font-weight: 400;
}
.battery-card i {
  align-self: end;
  color: #859094;
  font-size: 10px;
  font-style: normal;
}
.battery-card b {
  grid-column: 1 / -1;
  height: 3.5px;
  margin-top: 6px;
  background: #31383c;
  border-radius: 999px;
  overflow: hidden;
}
.battery-card em {
  display: block;
  width: 0;
  height: 100%;
  background: var(--acid);
  border-radius: inherit;
  transition: width 0.35s;
}

/* ── Single Solid LED Dot ── */
.link-state {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 10px;
  font-size: 9.5px;
  color: #929a9c;
}
.link-state span {
  width: 6.5px;
  height: 6.5px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: none !important;
}
.link-state.online span {
  background: var(--acid);
  box-shadow: none !important;
}
.link-state strong {
  font-weight: 400;
}

/* ── Right Workspace (Seamless) ── */
.workspace {
  display: flex;
  flex-direction: column;
  padding: 18px 20px 14px;
  color: var(--ink);
  background: linear-gradient(155deg, #f7f8f6, #ebefec);
  min-width: 0;
}

/* ── Topbar with Large Circular Window Buttons ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  user-select: none;
}
.connection {
  display: flex;
  align-items: center;
  gap: 5px;
  -webkit-app-region: no-drag;
}
.topbar-spacer {
  flex: 1;
  height: 32px;
  min-width: 20px;
}
select, input {
  border: 1px solid #d4d8d3;
  background: #fff;
  color: #212527;
  border-radius: 999px;
  outline: 0;
  cursor: pointer;
}
.connection select {
  width: 135px;
  height: 32px;
  padding: 0 12px;
  font-size: 10.5px;
  cursor: pointer;
  position: relative;
  z-index: 5;
  -webkit-app-region: no-drag;
}
.button, .icon-button {
  height: 32px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 14px;
  color: #28302c;
  background: #e8ebe6;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10.5px;
  font-weight: 400;
  transition: transform 0.15s, background 0.15s, box-shadow 0.15s;
}
.button:hover, .icon-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(30, 40, 35, 0.08);
}
.icon-button {
  width: 32px;
  padding: 0;
}
.icon-button svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-button .dots-icon {
  fill: currentColor;
  stroke: none;
}
.connect-button {
  background: #171b19;
  color: #fff;
  padding: 0 15px;
}
.connect-button:hover { background: #282f2c; }

/* ── Window Actions (Frameless Minimal Icons) ── */
.window-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  -webkit-app-region: no-drag;
}
.window-actions button {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  border: 0;
  background: transparent;
  color: #7a8588;
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 0;
  box-shadow: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}
.window-actions button::after {
  display: none !important;
}
.window-actions button svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.window-actions button:hover {
  background: transparent;
  color: #1a1e1d;
  box-shadow: none;
}
.window-actions button:active {
  opacity: 0.65;
}
.window-actions .window-close:hover {
  background: transparent;
  color: #e04438;
}
.window-actions .window-close:active {
  opacity: 0.65;
  color: #b52f25;
}

/* ── Drive Grid ── */
.drive-grid {
  --joy-size: min(30vh, 215px);
  --joy-circle-d: calc(var(--joy-size) * 0.90);
  display: grid;
  grid-template-columns: minmax(290px, 1fr) 175px;
  gap: 11px;
  flex: 1;
  min-height: 0;
  padding: 10px 0;
}
.control-card {
  display: flex;
  flex-direction: column;
  padding: 13px 15px 10px;
  border: 1px solid #e1e4e0;
  border-radius: 22px;
  background: var(--card);
  box-shadow: var(--shadow);
  min-height: 0;
}
.control-card header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.control-card header div {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.control-card small {
  font-size: 8.5px;
  color: #828a88;
  font-weight: 400;
}
.control-card header strong {
  font-size: 13px;
  font-weight: 400;
}
.key-hint {
  padding: 3px 6px;
  border-radius: 6px;
  background: #f0f2ef;
  color: #7e8583;
  font-size: 8.5px;
  font-weight: 400;
}

/* ── Joystick Card ── */
.joystick {
  --size: var(--joy-size);
  position: relative;
  width: var(--size);
  height: var(--size);
  min-width: 165px;
  min-height: 165px;
  margin: auto;
  border: 0;
  background: transparent;
  user-select: none;
  touch-action: none;
}
.joystick:before, .joystick:after { display: none !important; }
.axis, .axis-label, .axis-copy, .stick, .stick-shadow { display: none !important; }

/* ── Vertical Card & Slider (Matched in Height to Joystick Sphere) ── */
.vertical-control {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: var(--joy-size);
  gap: 3px;
  font-size: 8.5px;
  font-weight: 400;
  color: #828a87;
  padding: 2px 0;
}
.heave-track {
  position: relative;
  width: 36px;
  height: var(--joy-circle-d);
  border-radius: 18px;
  background: #eaeee8;
  border: 1px solid #d6dbd4;
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.05);
  touch-action: none;
}
.heave-track::before { display: none !important; }
.heave-center {
  position: absolute;
  left: 6px;
  right: 6px;
  top: 50%;
  height: 1px;
  background: #b2b9b4;
}
.heave-fill {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 50%;
  height: 0;
  background: rgba(188, 159, 235, 0.4);
  border-radius: 3px;
}
.heave-knob {
  position: absolute;
  left: 50%;
  top: 50%;
  translate: -50% -50%;
  width: 48px;
  height: 27px;
  border-radius: 14px;
  background: linear-gradient(145deg, #687271, #3c4443);
  border: 1px solid #d7dedc;
  box-shadow: 0 3px 10px rgba(20, 30, 25, 0.18), inset 0 1px rgba(255, 255, 255, 0.55);
  cursor: grab;
  touch-action: none;
  transition: scale 0.12s, filter 0.12s;
  will-change: top;
}
.heave-knob::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 1.5px;
  background: #8e9694;
  border-radius: 1px;
  transform: translate(-50%, -50%);
}
.heave-knob:active, .heave-knob.pressed {
  scale: 0.93;
}

/* ── Aligned Footers ── */
.control-card footer {
  display: flex;
  align-items: center;
  height: 14px;
  margin-top: auto;
  color: #7e8583;
  font-size: 9.5px;
  font-weight: 300;
  line-height: 1;
}
.control-card footer b { font-weight: 400; color: #28302c; }
.steer-card footer {
  justify-content: space-between;
  width: 100%;
  padding: 0 2px;
}
.steer-readout-left, .steer-readout-right {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.dot { display: none !important; }

/* ── Command Bar (Bottom Pill Tray) ── */
.bottom-actions {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.command-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  height: 42px;
  padding: 4px 8px;
  border: 1px solid #dde1dc;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 5px 16px rgba(0, 0, 0, 0.03);
}
.commands {
  display: flex;
  align-items: center;
  gap: 5px;
}
.commands .button {
  height: 30px;
  padding: 0 12px;
  font-size: 10px;
}
.subtle { background: #edf0ec; color: #262d29; }
.arm {
  background: #eef3e5;
  color: #24351a;
  min-width: 66px;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  user-select: none;
  touch-action: none;
  cursor: pointer;
}
.arm::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0 auto 0 0;
  width: var(--arm-progress, 0%);
  border-radius: inherit;
  background: linear-gradient(90deg, #c9f277, #9de848);
  pointer-events: none;
  transition: width 0.04s linear;
}
.arm-copy {
  display: grid;
  place-items: center;
  width: 100%;
  position: relative;
  z-index: 2;
}
.arm-copy > span {
  grid-area: 1 / 1;
  transition: opacity 0.15s, transform 0.15s;
}
.arm-holding-label { opacity: 0; transform: translateY(3px); }
.arm.charging .arm-label { opacity: 0; transform: translateY(-3px); }
.arm.charging .arm-holding-label { opacity: 1; transform: translateY(0); }
.arm.charged {
  background: #c9f277 !important;
  color: #14200d !important;
  transform: scale(1.04);
}
.danger { background: #f8deda; color: #7a2822; }

/* ── Output Limit Slider ── */
.output-limit {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  color: #656d6a;
  font-weight: 300;
  flex: 1;
  max-width: 240px;
  margin: 0 4px;
}
.output-limit span {
  white-space: nowrap;
}
.output-limit b {
  font-weight: 400;
  color: #232926;
}
.range-pill {
  display: grid;
  grid-template-columns: 22px 1fr 22px;
  align-items: center;
  width: 100%;
  height: 25px;
  border-radius: 999px;
  background: #eaede8;
  overflow: hidden;
}
.range-pill button {
  width: 22px;
  height: 25px;
  border: 0;
  background: transparent;
  color: #626966;
  font-size: 13px;
  font-weight: 400;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.range-pill button:hover { background: #dee2dc; color: #161a18; }
.range-pill input[type="range"] {
  width: 100%;
  height: 14px;
  margin: 0;
  padding: 0 3px;
  border: 0;
  background: transparent;
  accent-color: #3b4341;
  -webkit-appearance: none;
}
.range-pill input::-webkit-slider-runnable-track {
  height: 4.5px;
  border-radius: 3px;
  background: #d6dbd4;
}
.range-pill input::-webkit-slider-thumb {
  width: 12px;
  height: 16px;
  margin-top: -5.75px;
  border: 1px solid #aeb4ae;
  border-radius: 999px;
  background: #bcc0bb;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  -webkit-appearance: none;
}

/* ── Status Line & Logs ── */
.status-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 9.5px;
  color: #7c8481;
  padding: 1px 3px 0;
}
.status-line p {
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.logs-link {
  all: unset;
  cursor: pointer;
  color: #9aa29f;
  font-size: 9.5px;
  letter-spacing: 0.02em;
  margin-left: auto;
}
.logs-link:hover { color: #3c4240; }

/* ── Modals & Number Steppers (Floaty, Feathery Transitions) ── */
.modal {
  width: min(540px, calc(100vw - 40px));
  padding: 22px 24px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 24px;
  background: rgba(247, 248, 245, 0.96);
  color: #1a1e1f;
  box-shadow: 
    0 30px 80px -12px rgba(0, 0, 0, 0.42),
    0 12px 28px -4px rgba(0, 0, 0, 0.20),
    0 0 0 1px rgba(255, 255, 255, 0.35) inset;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  outline: none;
  transform-origin: center center;
  will-change: transform, opacity, filter;
}

.modal::backdrop {
  background: rgba(8, 17, 19, 0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  will-change: opacity, backdrop-filter;
}

/* Floaty feathery entrance */
.modal[open] {
  animation: featheryModalIn 0.42s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.modal[open]::backdrop {
  animation: featheryBackdropIn 0.38s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Floaty feathery exit */
.modal.closing {
  animation: featheryModalOut 0.28s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.modal.closing::backdrop {
  animation: featheryBackdropOut 0.26s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes featheryModalIn {
  0% {
    opacity: 0;
    transform: translateY(26px) scale(0.92);
    filter: blur(6px);
  }
  65% {
    transform: translateY(-2.5px) scale(1.008);
    filter: blur(0px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0px);
  }
}

@keyframes featheryModalOut {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0px);
  }
  100% {
    opacity: 0;
    transform: translateY(18px) scale(0.94);
    filter: blur(4px);
  }
}

@keyframes featheryBackdropIn {
  0% {
    opacity: 0;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
  }
  100% {
    opacity: 1;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
}

@keyframes featheryBackdropOut {
  0% {
    opacity: 1;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  100% {
    opacity: 0;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
  }
}

.modal h2 {
  margin: 3px 0 13px;
  font-size: 21px;
  font-weight: 300;
}
.modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 50%;
  background: #e6eae4;
  color: #555;
  cursor: pointer;
  font-size: 16px;
  display: grid;
  place-items: center;
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), background 0.15s, color 0.15s;
}
.modal-close:hover {
  background: #dde2db;
  color: #1a1e1d;
  transform: scale(1.1) rotate(90deg);
}
.modal-close:active {
  transform: scale(0.9) rotate(90deg);
}
.form-grid {
  display: grid;
  gap: 10px;
}
.form-grid.two { grid-template-columns: 1fr 1fr; }
.form-grid.three { grid-template-columns: repeat(3, 1fr); }
.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: #6f7572;
  font-size: 9.5px;
}
.number-pill {
  display: grid;
  grid-template-columns: 24px 1fr 24px;
  align-items: center;
  height: 32px;
  border: 1px solid #dce0db;
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.number-pill:focus-within {
  border-color: #9cb0a8;
  box-shadow: 0 0 0 3px rgba(114, 216, 232, 0.15);
}
.number-pill input {
  width: 100% !important;
  height: 100% !important;
  border: 0 !important;
  background: transparent !important;
  border-radius: 0 !important;
  text-align: center;
  font-size: 11.5px;
  font-weight: 400;
  color: #202523;
  padding: 0 !important;
  box-shadow: none !important;
  -moz-appearance: textfield;
}
.number-pill input::-webkit-inner-spin-button,
.number-pill input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.num-step {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 32px;
  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  color: #6e7572;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
  transition: background 0.12s, color 0.12s;
}
.num-step:hover { background: #eef1ed; color: #161a18; }
.num-step:active { background: #dee2dd; }

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 7px;
  margin-top: 16px;
}
.modal-actions.wide { grid-column: 1 / -1; }
.note { color: #767d7a; font-size: 10px; line-height: 1.4; }

.motor-modal { width: min(680px, calc(100vw - 40px)); }
.motor-head, .motor-row {
  display: grid;
  grid-template-columns: 65px 1fr 100px 80px;
  align-items: center;
  gap: 7px;
}
.motor-head { padding: 5px 8px; color: #8e9592; font-size: 8.5px; }
.motor-list { max-height: 320px; overflow: auto; }
.motor-row { min-height: 38px; padding: 3px 8px; border-top: 1px solid #e1e4df; }
.motor-row select { height: 28px; padding: 0 6px; font-size: 10px; }
.motor-row .button { height: 26px; padding: 0 8px; font-size: 10px; }

/* ── Toast (Floaty Feathery Popup) ── */
.toast {
  position: fixed;
  z-index: 20;
  left: 50%;
  bottom: 24px;
  padding: 9px 18px;
  border-radius: 14px;
  background: rgba(27, 33, 31, 0.94);
  color: #fff;
  font-size: 11px;
  font-weight: 400;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 
    0 16px 42px -6px rgba(0, 0, 0, 0.5),
    0 4px 14px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transform: translate(-50%, 22px) scale(0.92);
  opacity: 0;
  filter: blur(4px);
  pointer-events: none;
  transition: 
    transform 0.42s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.32s cubic-bezier(0.16, 1, 0.3, 1),
    filter 0.32s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity, filter;
}
.toast.show {
  transform: translate(-50%, 0) scale(1);
  opacity: 1;
  filter: blur(0px);
  animation: toastFeatherFloat 3.2s ease-in-out infinite alternate;
}
.toast.error {
  background: rgba(115, 48, 42, 0.95);
  border-color: rgba(240, 149, 139, 0.35);
}

@keyframes toastFeatherFloat {
  0% {
    transform: translate(-50%, 0) scale(1);
  }
  100% {
    transform: translate(-50%, -3px) scale(1);
  }
}

/* ── Window Exit Animation ── */
body.window-exiting .app-shell {
  opacity: 0;
  transform: scale(0.96) translateY(14px);
  filter: blur(5px);
  transition: 
    transform 0.34s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.34s cubic-bezier(0.4, 0, 0.2, 1),
    filter 0.34s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

/* ── Cursor-Tracked Themed Button Light Glow ── */
button {
  --glow-x: 50%;
  --glow-y: 50%;
  --glow-c1: rgba(255, 255, 255, 0.20);
  --glow-c2: rgba(240, 248, 245, 0.12);
  --glow-c3: rgba(180, 210, 205, 0.06);
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
button::after {
  content: "";
  position: absolute;
  z-index: 3;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(circle 55px at var(--glow-x) var(--glow-y), var(--glow-c1) 0%, var(--glow-c2) 30%, var(--glow-c3) 65%, transparent 100%);
  transition: opacity 0.25s ease;
}
button:hover::after { opacity: 1; }
button:active::after { opacity: 0.7; }
.arm {
  --glow-c1: rgba(255, 255, 255, 0.30);
  --glow-c2: rgba(235, 252, 205, 0.20);
  --glow-c3: rgba(201, 242, 119, 0.12);
}
.danger {
  --glow-c1: rgba(255, 255, 255, 0.28);
  --glow-c2: rgba(254, 228, 224, 0.18);
  --glow-c3: rgba(240, 149, 139, 0.10);
}
.connect-button {
  --glow-c1: rgba(255, 255, 255, 0.22);
  --glow-c2: rgba(215, 245, 255, 0.14);
  --glow-c3: rgba(114, 216, 232, 0.08);
}
.subtle, .icon-button {
  --glow-c1: rgba(255, 255, 255, 0.22);
  --glow-c2: rgba(242, 246, 244, 0.14);
  --glow-c3: rgba(195, 210, 205, 0.07);
}
button > svg, button > span, button > kbd { position: relative; z-index: 4; }

@media (max-width: 950px) {
  .app-shell { grid-template-columns: 210px minmax(0, 1fr); }
  .drive-grid { grid-template-columns: minmax(260px, 1fr) 160px; }
  .workspace { padding: 14px 16px 10px; }
}