style.css

:root {
  --wc-ink: #17263b;
  --wc-muted: #657083;
  --wc-cream: #fffaf0;
  --wc-paper: #ffffff;
  --wc-border: #eadfce;
  --wc-red: #f05a4f;
  --wc-red-soft: #fff0ed;
  --wc-yellow: #f3b51b;
  --wc-yellow-soft: #fff7d9;
  --wc-green: #20a879;
  --wc-green-soft: #e9f8f2;
  --wc-blue: #62c9e8;
  --wc-navy: #1c3150;
  --wc-shadow: 0 20px 60px rgba(28, 49, 80, 0.12);
}

body,
.gradio-container {
  background:
    radial-gradient(circle at 10% 3%, rgba(243, 181, 27, 0.18), transparent 28rem),
    radial-gradient(circle at 92% 14%, rgba(98, 201, 232, 0.14), transparent 30rem),
    radial-gradient(circle at 70% 100%, rgba(32, 168, 121, 0.12), transparent 30rem),
    #f8f5ed !important;
  color: var(--wc-ink);
}

.gradio-container,
.main,
.wrap {
  max-width: none !important;
  padding: 0 !important;
}

.whistle-app,
.whistle-app * {
  box-sizing: border-box;
}

.whistle-app {
  width: 100%;
  min-width: 1080px;
  min-height: 100vh;
  padding: 24px clamp(24px, 3vw, 48px) 18px;
  color: var(--wc-ink);
  font-family:
    Inter, ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, -apple-system,
    BlinkMacSystemFont, sans-serif;
}

.app-header {
  width: min(1540px, 100%);
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 15px;
}

.brand-mark {
  width: 60px;
  height: 60px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 20px;
  color: white;
  background: linear-gradient(145deg, var(--wc-red), #ff875d);
  box-shadow: 0 11px 26px rgba(240, 90, 79, 0.26);
  transform: rotate(-3deg);
}

.brand-mark svg {
  width: 40px;
  height: 40px;
}

.eyebrow,
.step-label {
  margin: 0 0 3px;
  color: var(--wc-red);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.app-header h1 {
  margin: 0;
  color: var(--wc-navy);
  font-size: clamp(1.9rem, 2.6vw, 2.75rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1;
}

.subtitle {
  margin: 7px 0 0;
  color: var(--wc-muted);
  font-size: 0.98rem;
  font-weight: 650;
}

.controls {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px;
  border: 1px solid var(--wc-border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 8px 28px rgba(28, 49, 80, 0.06);
  backdrop-filter: blur(12px);
}

.control-button {
  min-height: 44px;
  padding: 0 17px;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 850;
  transition:
    transform 150ms ease,
    box-shadow 150ms ease,
    opacity 150ms ease;
}

.control-button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.control-button:focus-visible {
  outline: 3px solid rgba(28, 49, 80, 0.22);
  outline-offset: 2px;
}

.control-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.control-button.primary {
  color: white;
  background: var(--wc-navy);
  box-shadow: 0 7px 16px rgba(28, 49, 80, 0.2);
}

.control-button.secondary {
  color: #9b342f;
  background: var(--wc-red-soft);
}

.control-button.ghost {
  color: var(--wc-navy);
  background: transparent;
}

.workspace {
  width: min(1540px, 100%);
  margin: 0 auto;
}

.garden-workspace {
  display: grid;
  grid-template-columns: minmax(720px, 1fr) minmax(320px, 0.35fr);
  gap: 18px;
  align-items: stretch;
}

.panel {
  min-width: 0;
  padding: 18px;
  border: 1px solid rgba(234, 223, 206, 0.96);
  border-radius: 27px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--wc-shadow);
}

.game-panel {
  padding: 20px;
}

.side-stack {
  display: grid;
  gap: 18px;
  grid-template-rows: auto auto;
  align-content: start;
}

.panel-heading {
  min-height: 50px;
  margin-bottom: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-heading.compact {
  min-height: auto;
  justify-content: flex-start;
}

.panel-heading h2 {
  margin: 0;
  color: var(--wc-navy);
  font-size: 1.22rem;
  font-weight: 900;
  letter-spacing: -0.025em;
}

.session-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--wc-muted);
  background: #f3f1ec;
  font-size: 0.73rem;
  font-weight: 850;
}

.session-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #a6a39c;
}

.session-pill[data-state="loading"] {
  color: #876307;
  background: var(--wc-yellow-soft);
}

.session-pill[data-state="loading"] .session-dot {
  background: var(--wc-yellow);
  animation: wc-pulse 1s infinite;
}

.session-pill[data-state="live"] {
  color: #116d50;
  background: var(--wc-green-soft);
}

.session-pill[data-state="live"] .session-dot {
  background: var(--wc-green);
  box-shadow: 0 0 0 4px rgba(32, 168, 121, 0.15);
}

.session-pill[data-state="error"] {
  color: #9b342f;
  background: var(--wc-red-soft);
}

.session-pill[data-state="error"] .session-dot {
  background: var(--wc-red);
}

@keyframes wc-pulse {
  50% {
    opacity: 0.35;
  }
}

.camera-stage {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 5px solid var(--wc-red);
  border-radius: 25px;
  background:
    linear-gradient(180deg, rgba(23, 38, 59, 0.12), rgba(23, 38, 59, 0.42)),
    #182536;
  box-shadow: inset 0 -100px 90px rgba(5, 18, 20, 0.3);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.camera-stage[data-feedback="yellow"] {
  border-color: var(--wc-yellow);
  box-shadow:
    0 0 0 5px rgba(243, 181, 27, 0.13),
    inset 0 -100px 90px rgba(5, 18, 20, 0.25);
}

.camera-stage[data-feedback="green"] {
  border-color: var(--wc-green);
  box-shadow:
    0 0 0 5px rgba(32, 168, 121, 0.14),
    inset 0 -100px 90px rgba(5, 18, 20, 0.18);
}

#camera-placeholder,
#practice-video,
#mouth-overlay,
#garden-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#camera-placeholder {
  z-index: 1;
  display: grid;
  place-items: center;
  padding: clamp(22px, 4vw, 52px);
  overflow: hidden;
}

.start-screen {
  background:
    radial-gradient(circle at 28% 28%, rgba(98, 201, 232, 0.28), transparent 13rem),
    radial-gradient(circle at 77% 78%, rgba(32, 168, 121, 0.3), transparent 14rem),
    linear-gradient(135deg, #182536, #263a58 52%, #203143);
  color: white;
}

.start-orbit {
  position: absolute;
  inset: 16%;
  border: 1px dashed rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  animation: wc-orbit 9s linear infinite;
}

.start-orbit span {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #98f1c5;
  box-shadow: 0 0 28px rgba(152, 241, 197, 0.8);
}

.start-orbit span:nth-child(1) {
  top: -8px;
  left: 48%;
}

.start-orbit span:nth-child(2) {
  right: 8%;
  bottom: 14%;
  background: #ffe27a;
}

.start-orbit span:nth-child(3) {
  left: 9%;
  bottom: 19%;
  background: #8ad7ff;
}

.start-copy {
  position: relative;
  z-index: 2;
  width: min(560px, 88%);
  padding: 28px 30px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 26px;
  background: rgba(23, 38, 59, 0.66);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
  text-align: center;
  backdrop-filter: blur(13px);
}

.start-kicker {
  margin: 0 0 8px;
  color: #98f1c5;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.start-copy h3 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2.35rem);
  font-weight: 950;
  letter-spacing: -0.045em;
  line-height: 1.04;
}

.start-copy p:last-child {
  margin: 13px auto 0;
  max-width: 440px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.84rem;
  font-weight: 650;
  line-height: 1.55;
}

@keyframes wc-orbit {
  to {
    transform: rotate(360deg);
  }
}

#practice-video {
  z-index: 2;
  display: none;
  object-fit: cover;
  transform: scaleX(-1);
}

#mouth-overlay {
  z-index: 4;
  pointer-events: none;
}

#garden-canvas {
  z-index: 3;
  pointer-events: none;
}

.permission-note {
  position: absolute;
  z-index: 7;
  left: 50%;
  bottom: 92px;
  width: min(88%, 430px);
  padding: 13px 16px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 16px;
  color: white;
  background: rgba(23, 38, 59, 0.82);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  text-align: center;
  transform: translateX(-50%);
  backdrop-filter: blur(9px);
}

.permission-note strong,
.permission-note span {
  display: block;
}

.permission-note strong {
  margin-bottom: 3px;
  font-size: 0.82rem;
}

.permission-note span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.72rem;
}

.target-legend {
  position: absolute;
  z-index: 6;
  top: 13px;
  left: 13px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border-radius: 999px;
  color: white;
  background: rgba(23, 38, 59, 0.66);
  font-size: 0.68rem;
  font-weight: 800;
  backdrop-filter: blur(8px);
}

.legend-swatch {
  width: 18px;
  height: 9px;
  border: 2px dashed white;
  border-radius: 50%;
}

.garden-hud {
  position: absolute;
  z-index: 6;
  right: 14px;
  bottom: 14px;
  width: min(310px, calc(100% - 28px));
  padding: 13px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 18px;
  color: white;
  background: rgba(23, 38, 59, 0.72);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
}

.garden-hud > div:first-child,
.garden-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.garden-hud-label,
.garden-stats {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.69rem;
  font-weight: 750;
}

#garden-growth {
  color: #98f1c5;
  font-size: 1.25rem;
  font-weight: 950;
}

.garden-track {
  height: 8px;
  margin: 10px 0 9px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

#garden-growth-fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #7ee7a7, #ffe27a, #ff9d6e);
  transition: width 120ms linear;
}

.garden-stats strong {
  color: white;
  font-size: 0.82rem;
}

.camera-hint {
  margin: 13px 3px 0;
  color: var(--wc-muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.status-panel,
.coach-panel {
  display: flex;
  flex-direction: column;
}

.coach-panel {
  order: -1;
}

.indicator-stack {
  display: grid;
  gap: 11px;
}

.indicator-card {
  --indicator: var(--wc-red);
  --indicator-soft: var(--wc-red-soft);
  padding: 14px;
  border: 1px solid color-mix(in srgb, var(--indicator) 24%, white);
  border-radius: 17px;
  background: var(--indicator-soft);
  transition:
    border-color 180ms ease,
    background 180ms ease;
}

.indicator-card[data-state="yellow"] {
  --indicator: var(--wc-yellow);
  --indicator-soft: var(--wc-yellow-soft);
}

.indicator-card[data-state="green"] {
  --indicator: var(--wc-green);
  --indicator-soft: var(--wc-green-soft);
}

.indicator-topline,
.indicator-name {
  display: flex;
  align-items: center;
}

.indicator-topline {
  justify-content: space-between;
  gap: 10px;
}

.indicator-name {
  gap: 8px;
  color: var(--wc-navy);
  font-size: 0.81rem;
  font-weight: 850;
}

.status-light {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--indicator);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--indicator) 17%, transparent);
}

.indicator-score {
  color: var(--indicator);
  font-size: 1.12rem;
  font-weight: 950;
}

.indicator-score small {
  margin-left: 2px;
  color: var(--wc-muted);
  font-size: 0.6rem;
  font-weight: 750;
}

.score-track {
  height: 7px;
  margin: 12px 0 9px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(23, 38, 59, 0.09);
}

.score-fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--indicator);
  transition: width 140ms linear;
}

.indicator-detail {
  min-height: 1.1em;
  margin: 0;
  color: var(--wc-muted);
  font-size: 0.68rem;
  font-weight: 650;
}

.signal-note {
  margin-top: 13px;
  padding: 13px 14px;
  border: 1px dashed #ded7ca;
  border-radius: 15px;
  background: #faf8f3;
}

.signal-note strong,
.signal-note span {
  display: block;
}

.signal-note strong {
  margin-bottom: 3px;
  color: var(--wc-navy);
  font-size: 0.73rem;
}

.signal-note span {
  color: var(--wc-muted);
  font-size: 0.67rem;
  line-height: 1.45;
}

.coach-card {
  position: relative;
  min-height: 150px;
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  overflow: hidden;
  border-radius: 21px;
  background:
    radial-gradient(circle at 85% 12%, rgba(243, 181, 27, 0.32), transparent 5rem),
    var(--wc-yellow-soft);
  text-align: center;
  transition: background 180ms ease;
}

.coach-card[data-state="red"] {
  background:
    radial-gradient(circle at 85% 12%, rgba(240, 90, 79, 0.2), transparent 5rem),
    var(--wc-red-soft);
}

.coach-card[data-state="green"] {
  background:
    radial-gradient(circle at 85% 12%, rgba(32, 168, 121, 0.2), transparent 5rem),
    var(--wc-green-soft);
}

.coach-face {
  position: relative;
  width: 60px;
  height: 54px;
  flex: 0 0 auto;
  border: 3px solid var(--wc-navy);
  border-radius: 48% 48% 44% 44%;
  background: #ffd970;
  box-shadow: 5px 6px 0 rgba(28, 49, 80, 0.11);
  transform: rotate(-2deg);
}

.coach-eye {
  position: absolute;
  top: 19px;
  width: 6px;
  height: 7px;
  border-radius: 50%;
  background: var(--wc-navy);
}

.coach-eye.left {
  left: 15px;
}

.coach-eye.right {
  right: 15px;
}

.coach-mouth {
  position: absolute;
  left: 50%;
  bottom: 10px;
  width: 10px;
  height: 8px;
  border: 3px solid var(--wc-navy);
  border-radius: 50%;
  transform: translateX(-50%);
}

#coach-message {
  max-width: 290px;
  margin: 0;
  color: var(--wc-navy);
  font-size: clamp(0.98rem, 1.25vw, 1.16rem);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.mini-guide {
  margin-top: 13px;
  padding: 15px;
  border: 1px solid var(--wc-border);
  border-radius: 18px;
  background: #fcfbf8;
}

.mini-guide-title {
  margin: 0 0 10px;
  color: var(--wc-navy);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mini-guide ol {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mini-guide li {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--wc-muted);
  font-size: 0.73rem;
  font-weight: 650;
}

.mini-guide li span {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 8px;
  color: white;
  background: var(--wc-navy);
  font-size: 0.65rem;
  font-weight: 850;
}

.technical-status {
  margin: auto 3px 0;
  padding-top: 13px;
  color: var(--wc-muted);
  font-size: 0.65rem;
  line-height: 1.45;
}

.app-footer {
  width: min(1540px, 100%);
  margin: 14px auto 0;
  color: #858a93;
  font-size: 0.68rem;
  text-align: center;
}

@media (max-width: 1220px) {
  .whistle-app {
    padding-inline: 20px;
  }

  .garden-workspace {
    grid-template-columns: minmax(650px, 1fr) 310px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .whistle-app *,
  .whistle-app *::before,
  .whistle-app *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Reference-style UI refresh: centered camera, left coach, right signal cards. */
.whistle-app {
  min-width: 1180px;
  padding: 26px 34px 16px;
  background: rgba(255, 255, 255, 0.72);
}

.app-header {
  width: min(1500px, 100%);
  margin-bottom: 18px;
}

.brand-mark {
  border-radius: 16px;
  background: linear-gradient(145deg, #5147ff, #6b5cff);
  box-shadow: 0 14px 28px rgba(81, 71, 255, 0.22);
  transform: none;
}

.eyebrow {
  display: none;
}

.app-header h1 {
  color: #121328;
  font-size: clamp(2.2rem, 3vw, 3.3rem);
}

.subtitle {
  color: #4f46e5;
  font-size: 1.05rem;
}

.header-badges {
  display: flex;
  align-items: center;
  gap: 14px;
}

.tech-badge,
.about-badge {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 999px;
  color: #25283b;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.06);
  font-size: 0.78rem;
  font-weight: 850;
}

.about-badge::before {
  content: "i";
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 950;
}

.coach-workspace {
  display: grid;
  grid-template-columns: 280px minmax(980px, 1fr);
  gap: 18px;
  align-items: stretch;
}

.coach-sidebar,
.signal-sidebar {
  min-width: 0;
}

.coach-sidebar {
  display: flex;
  flex-direction: column;
  gap: 15px;
  padding: 18px;
}

.camera-card {
  min-width: 0;
  position: relative;
}

.camera-stage {
  border: 0;
  border-radius: 26px;
  background: #101827;
  box-shadow:
    0 22px 64px rgba(15, 23, 42, 0.16),
    inset 0 -110px 90px rgba(5, 18, 20, 0.26);
}

.camera-stage[data-feedback="yellow"],
.camera-stage[data-feedback="green"] {
  border-color: transparent;
}

#mouth-overlay {
  z-index: 5;
}

#garden-canvas {
  z-index: 4;
}

.live-pill {
  position: absolute;
  z-index: 8;
  top: 16px;
  left: 16px;
  color: white;
  background: rgba(15, 23, 42, 0.78);
  backdrop-filter: blur(12px);
}

.target-legend {
  top: auto;
  left: 18px;
  bottom: 18px;
  width: 210px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.78);
}

.legend-swatch {
  border-color: #32eb84;
}

.garden-hud {
  right: 18px;
  bottom: 18px;
  width: 310px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.83);
  color: #121328;
}

.garden-hud-label,
.garden-stats {
  color: #5f6678;
}

#garden-growth-stage {
  color: var(--wc-green);
}

.camera-hint {
  position: absolute;
  z-index: 8;
  left: 50%;
  bottom: 14px;
  width: min(500px, 62%);
  margin: 0;
  padding: 10px 15px;
  border-radius: 12px;
  color: white;
  background: rgba(15, 23, 42, 0.76);
  text-align: center;
  transform: translateX(-50%);
  backdrop-filter: blur(10px);
}

.coach-card {
  min-height: 116px;
  padding: 16px;
  flex-direction: row;
  justify-content: flex-start;
  text-align: left;
  border: 1px solid rgba(34, 197, 94, 0.18);
  background: #eafff0;
}

.coach-card[data-state="red"] {
  background: #fff1ed;
}

.coach-card[data-state="green"] {
  background: #eafff0;
}

.coach-face {
  width: 42px;
  height: 40px;
  border-width: 2px;
  border-radius: 16px;
  background: #d8ffe4;
  box-shadow: none;
}

.coach-eye {
  top: 14px;
}

.coach-eye.left {
  left: 10px;
}

.coach-eye.right {
  right: 10px;
}

.coach-mouth {
  bottom: 7px;
}

#coach-message {
  font-size: 0.94rem;
  line-height: 1.45;
}

.mini-guide {
  margin-top: 0;
  border-color: rgba(226, 232, 240, 0.9);
  background: rgba(255, 255, 255, 0.82);
}

.mini-guide li {
  padding: 8px 9px;
  border-radius: 11px;
  background: #f8fafc;
}

.mini-guide li span {
  background: #dffbea;
  color: #138a5a;
}

.progress-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
}

.progress-ring {
  width: 70px;
  height: 70px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 8px solid #e6e8ff;
  border-top-color: #5b50ff;
  border-radius: 50%;
}

.progress-ring strong {
  color: #4f46e5;
  font-size: 1rem;
  font-weight: 950;
}

.progress-card p:last-child {
  margin: 3px 0 0;
  color: var(--wc-muted);
  font-size: 0.73rem;
  line-height: 1.45;
}

.melody-card,
.state-card,
.trace-card {
  padding: 15px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
}

.melody-card p:nth-child(2),
.state-card code {
  margin: 3px 0 0;
  color: var(--wc-muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.melody-download {
  display: inline-flex;
  margin-top: 10px;
  padding: 9px 12px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, #554bff, #6b5cff);
  font-size: 0.75rem;
  font-weight: 900;
  text-decoration: none;
}

.state-card code {
  display: block;
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.trace-card ol {
  display: grid;
  gap: 9px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.trace-card li {
  display: grid;
  gap: 3px;
  padding: 10px 11px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 14px;
  background: rgba(248, 250, 252, 0.86);
}

.trace-card strong {
  color: #334155;
  font-size: 0.72rem;
  font-weight: 950;
  text-transform: uppercase;
}

.trace-card span {
  color: var(--wc-muted);
  font-size: 0.72rem;
  line-height: 1.35;
}

.signal-sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.indicator-stack {
  gap: 14px;
}

.indicator-card {
  padding: 18px;
  border: 1px solid rgba(226, 232, 240, 0.86);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.1);
  backdrop-filter: blur(12px);
}

.indicator-name {
  font-size: 0.95rem;
}

.indicator-score {
  font-size: 1.5rem;
}

.score-track {
  height: 8px;
  margin: 14px 0 10px;
  background: linear-gradient(90deg, #2bd873, #ffe45e, #ff444a);
}

.score-fill {
  background: rgba(255, 255, 255, 0.82);
  box-shadow: -999px 0 0 999px var(--indicator);
}

.signal-note {
  margin-top: 0;
  background: rgba(255, 255, 255, 0.82);
}

.bottom-controls {
  width: min(1120px, 100%);
  margin: 20px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr 0.65fr;
  gap: 18px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.bottom-controls .control-button {
  min-height: 56px;
  border-radius: 17px;
  font-size: 1rem;
}

.bottom-controls .primary {
  background: linear-gradient(135deg, #554bff, #6b5cff);
}

.bottom-controls .secondary {
  color: white;
  background: linear-gradient(135deg, #ff4048, #ff3038);
}

.bottom-controls .ghost {
  color: #33384f;
  background: white;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
}

/* Game-like UI pass inspired by the provided reference. */
.whistle-app {
  background:
    radial-gradient(circle at 50% 0%, rgba(107, 92, 255, 0.08), transparent 34rem),
    #fbfaf8;
}

.coach-workspace {
  grid-template-columns: 270px minmax(1040px, 1fr);
}

.camera-stage {
  border: 7px solid rgba(255, 255, 255, 0.92);
  border-radius: 30px;
  background: #111;
  box-shadow:
    0 30px 72px rgba(21, 24, 40, 0.16),
    0 0 0 1px rgba(20, 25, 38, 0.08);
}

.camera-stage[data-feedback="yellow"],
.camera-stage[data-feedback="green"] {
  box-shadow:
    0 30px 72px rgba(21, 24, 40, 0.16),
    0 0 0 1px rgba(20, 25, 38, 0.08);
}

#practice-video {
  filter: grayscale(1) contrast(1.12) brightness(0.88);
  transform: scaleX(-1);
}

#mouth-overlay,
#garden-canvas {
  mix-blend-mode: normal;
}

.target-legend {
  bottom: auto;
  top: 17px;
  left: auto;
  right: 18px;
  width: auto;
  min-width: 150px;
  justify-content: center;
  color: white;
  background: rgba(14, 18, 26, 0.72);
}

.garden-hud,
.compact-signals,
.state-card {
  display: none;
}

.camera-hint {
  bottom: 138px;
  width: min(520px, 58%);
  background: rgba(15, 17, 24, 0.72);
}

.live-pill {
  background: rgba(255, 255, 255, 0.86);
  color: #111827;
}

.live-pill .session-dot {
  background: #4ade80;
}

.action-sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.action-stack {
  display: grid;
  gap: 18px;
}

.melody-action {
  min-height: 122px;
  display: grid;
  grid-template-columns: 62px 1fr;
  align-items: center;
  gap: 18px;
  padding: 22px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 24px;
  color: #182039;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 48px rgba(20, 24, 40, 0.08);
  text-align: left;
  text-decoration: none;
  font: inherit;
}

.melody-action strong {
  font-size: 1.05rem;
  font-weight: 900;
}

.melody-action small,
.melody-action select {
  grid-column: 2;
  color: #71798b;
  font-size: 0.73rem;
}

.melody-action select {
  width: 100%;
  margin-top: 8px;
  padding: 8px 10px;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  background: #f8fafc;
  font-weight: 800;
}

.action-icon {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 1.7rem;
  font-weight: 950;
}

.record-action .action-icon {
  color: #ff4052;
  background: #ffe4e8;
  box-shadow: inset 0 0 0 1px rgba(255, 64, 82, 0.25);
}

.style-action .action-icon {
  color: #9656ff;
  background: #efe5ff;
}

.generating-action .action-icon {
  color: #615dff;
  background: #e8e8ff;
}

.generating-action[data-active="true"] .action-icon {
  animation: wc-pulse 0.8s infinite;
}

.generating-action[data-active="done"] .action-icon,
.play-action .action-icon {
  color: #20b970;
  background: #ddfaeb;
}

.download-action .action-icon {
  color: #228be6;
  background: #e1f1ff;
}

.melody-action:disabled,
.download-action[aria-disabled="true"] {
  opacity: 0.58;
  cursor: not-allowed;
}

.download-action.ready {
  opacity: 1;
}

.signal-note {
  display: none;
}

/* Mobile and compact pass: keep the game view usable on phones. */
.whistle-app {
  min-width: 0;
  font-family:
    "Avenir Next", Avenir, "DIN Alternate", "Arial Rounded MT Bold",
    "Helvetica Neue", Arial, system-ui, sans-serif;
  letter-spacing: 0.005em;
}

.app-header h1,
.melody-action strong,
.coach-card,
.mini-guide,
.control-button {
  letter-spacing: 0.01em;
}

@media (max-width: 980px) {
  body,
  .gradio-container {
    overflow-x: hidden !important;
  }

  .whistle-app {
    width: 100%;
    min-width: 0;
    padding: 12px;
  }

  .app-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 12px;
  }

  .brand-lockup {
    gap: 11px;
  }

  .brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 15px;
  }

  .brand-mark svg {
    width: 31px;
    height: 31px;
  }

  .app-header h1 {
    font-size: 1.75rem;
    letter-spacing: -0.035em;
  }

  .subtitle {
    margin-top: 4px;
    font-size: 0.84rem;
  }

  .header-badges {
    width: 100%;
    justify-content: flex-start;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .tech-badge,
  .about-badge {
    min-height: 34px;
    flex: 0 0 auto;
    padding: 0 12px;
    border-radius: 999px;
    font-size: 0.68rem;
    white-space: nowrap;
  }

  .coach-workspace {
    width: 100%;
    min-width: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .camera-card {
    order: 1;
    min-width: 0;
  }

  .coach-sidebar {
    order: 2;
    min-width: 0;
    padding: 12px;
    border-radius: 20px;
  }

  .action-sidebar {
    order: 3;
    min-width: 0;
  }

  .camera-stage {
    width: 100%;
    min-width: 0;
    aspect-ratio: 9 / 12.8;
    border-width: 4px;
    border-radius: 22px;
  }

  .live-pill,
  .target-legend {
    top: 10px;
    padding: 6px 9px;
    border-radius: 12px;
    font-size: 0.62rem;
  }

  .live-pill {
    left: 10px;
  }

  .target-legend {
    right: 10px;
    min-width: 0;
  }

  .camera-hint {
    bottom: 88px;
    width: min(86%, 410px);
    padding: 8px 10px;
    border-radius: 12px;
    font-size: 0.62rem;
  }

  .coach-card {
    min-height: 96px;
    padding: 16px;
    border-radius: 18px;
  }

  #coach-message {
    font-size: 0.84rem;
  }

  .mini-guide ol {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .progress-card,
  .melody-card {
    padding: 14px;
    border-radius: 18px;
  }

  .action-stack {
    display: grid;
    grid-template-columns: repeat(5, minmax(86px, 1fr));
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .melody-action {
    min-height: 88px;
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 7px;
    padding: 12px 10px;
    border-radius: 18px;
    text-align: center;
  }

  .action-icon {
    width: 42px;
    height: 42px;
    font-size: 1.1rem;
  }

  .melody-action strong {
    font-size: 0.72rem;
  }

  .melody-action small,
  .melody-action select {
    grid-column: 1;
    margin-top: 0;
    font-size: 0.58rem;
  }

  .bottom-controls {
    position: sticky;
    bottom: 8px;
    z-index: 20;
    width: 100%;
    grid-template-columns: 1fr 1fr 0.85fr;
    gap: 8px;
    margin-top: 12px;
    padding: 0;
  }

  .bottom-controls .control-button {
    min-height: 44px;
    border-radius: 14px;
    font-size: 0.78rem;
  }

  .technical-status,
  .app-footer {
    display: none;
  }
}

@media (max-width: 560px) {
  .whistle-app {
    padding: 10px;
  }

  .camera-stage {
    aspect-ratio: 9 / 14;
  }

  .coach-face {
    display: none;
  }

  .coach-card {
    min-height: auto;
  }

  .mini-guide {
    display: none;
  }

  .action-stack {
    grid-template-columns: repeat(5, minmax(78px, 1fr));
  }

  .melody-action {
    min-height: 82px;
    padding: 10px 8px;
  }
}