:root {
  --text-main: #fbfdff;
  --text-soft: rgba(241, 246, 255, 0.88);
  --text-faint: rgba(220, 229, 246, 0.66);
  --line-soft: rgba(255, 255, 255, 0.22);
  --panel-bg: rgba(7, 14, 26, 0.58);
  --panel-bg-strong: rgba(8, 16, 30, 0.78);
  --cyan: #76efe2;
  --gold: #ffc484;
  --green: #9bffcc;
  --rose: #ff96a5;
  --shadow-soft: 0 18px 42px rgba(0, 0, 0, 0.24);
  --font-display: "Bahnschrift SemiCondensed", "Aptos Display", "Microsoft YaHei UI", sans-serif;
  --font-body: "Aptos", "Segoe UI Variable Text", "Microsoft YaHei UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body.overlay-body {
  font-family: var(--font-body);
  color: var(--text-main);
  background: transparent;
}

.overlay-shell {
  --widget-width: min(420px, 44vw);
  width: 100%;
  min-height: 100vh;
  display: grid;
  justify-items: end;
  align-content: start;
  padding: clamp(78px, 9vh, 124px) clamp(12px, 1.4vw, 20px) 12px;
  pointer-events: none;
}

.glass-panel {
  border: 1px solid var(--line-soft);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(9, 16, 30, 0.72), rgba(7, 14, 26, 0.54));
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px) saturate(135%);
}

.marquee-shell {
  width: var(--widget-width);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  margin-bottom: 10px;
  border-radius: 18px;
}

.marquee-label,
.panel-kicker,
.queue-meta,
.focus-tip,
.focus-meta,
.empty-copy {
  font-size: 15px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.marquee-label {
  flex: 0 0 auto;
}

.marquee-viewport {
  flex: 1 1 auto;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.marquee-track {
  --marquee-duration: 24s;
  --marquee-distance: 0px;
  display: inline-flex;
  align-items: center;
  width: max-content;
  min-width: max-content;
  white-space: nowrap;
  will-change: transform;
  animation: marquee var(--marquee-duration) linear infinite;
}

.marquee-track.is-static {
  animation: none;
}

.marquee-segment {
  display: inline-flex;
  align-items: center;
  gap: 26px;
  flex: 0 0 auto;
  padding-right: 26px;
}

.marquee-copy {
  font-size: 28px;
  line-height: 1.18;
  color: var(--text-main);
}

.marquee-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(118, 239, 226, 0.44);
}

.overlay-layout {
  width: var(--widget-width);
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: start;
}

.current-panel,
.queue-panel {
  padding: 18px;
  border-radius: 20px;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-head.compact {
  margin-bottom: 10px;
}

.panel-metric {
  display: grid;
  justify-items: end;
  gap: 6px;
}

.panel-kicker-tight {
  letter-spacing: 0.12em;
}

.panel-title,
.queue-title,
.focus-song,
.queue-song,
.empty-title,
.viewer-name {
  margin: 0;
  font-family: var(--font-display);
}

.panel-title {
  font-size: clamp(24px, 2.5vw, 32px);
  line-height: 1.02;
}

.queue-title {
  font-size: clamp(24px, 2.5vw, 32px);
  line-height: 1;
}

.queue-counter,
.state-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.12);
}

.queue-counter {
  min-width: 112px;
  min-height: 40px;
  padding: 0 16px;
  font: 700 24px/1 var(--font-display);
  letter-spacing: 0.04em;
  will-change: transform, box-shadow;
}

.queue-counter.is-pulsing {
  animation: counterPulse 420ms cubic-bezier(0.22, 1, 0.36, 1);
}

.state-pill {
  font-size: 16px;
  font-weight: 700;
}

.state-pill.ready {
  color: var(--green);
  border-color: rgba(155, 255, 204, 0.3);
  background: rgba(155, 255, 204, 0.16);
}

.state-pill.pending {
  color: var(--gold);
  border-color: rgba(255, 196, 132, 0.28);
  background: rgba(255, 196, 132, 0.16);
}

.current-slot {
  min-height: 0;
  position: relative;
  transition: min-height 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

.current-slot > .focus-card,
.current-slot > .empty-card {
  transform-origin: top right;
  will-change: transform, opacity, filter;
  backface-visibility: hidden;
}

.current-slot > .current-live {
  position: relative;
  z-index: 1;
}

.current-slot > .current-snapshot {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  pointer-events: none;
}

.current-slot > .focus-card.is-leaving,
.current-slot > .empty-card.is-leaving {
  animation: currentCardOut 180ms cubic-bezier(0.55, 0.08, 0.68, 0.53) both;
}

.current-slot > .focus-card.is-entering,
.current-slot > .empty-card.is-entering {
  opacity: 0;
  transform: translate3d(0, 16px, 0) scale(0.975);
  filter: blur(10px);
}

.current-slot > .focus-card.is-entering.is-settled,
.current-slot > .empty-card.is-entering.is-settled {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  filter: blur(0);
  transition:
    opacity 420ms ease,
    transform 560ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 520ms ease;
}

.focus-card,
.queue-card,
.empty-card {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 20%),
    rgba(7, 14, 26, 0.56);
  backdrop-filter: blur(14px);
}

.focus-card,
.empty-card {
  min-height: 0;
  padding: 18px;
}

.focus-card {
  display: grid;
  gap: 12px;
  align-content: start;
}

.focus-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.viewer-name {
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1;
}

.focus-meta {
  margin-top: 8px;
}

.focus-song {
  font-size: clamp(36px, 3.6vw, 50px);
  line-height: 1.02;
  word-break: break-word;
}

.focus-song.pending {
  color: rgba(255, 204, 148, 1);
}

.focus-tip {
  color: var(--text-soft);
}

.queue-list {
  display: grid;
  gap: 8px;
  max-height: 44vh;
  overflow: hidden;
}

.queue-card {
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  opacity: 1;
  transform: translate3d(0, 0, 0);
  will-change: transform, opacity, filter;
  backface-visibility: hidden;
}

.queue-card.queue-card-enter {
  animation: queueCardEnter 580ms cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: var(--queue-delay, 0ms);
}

.queue-card-top {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
}

.queue-index {
  font: 700 24px/1 var(--font-display);
  color: rgba(255, 255, 255, 0.96);
}

.queue-copy {
  min-width: 0;
}

.queue-name {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.queue-meta {
  margin: 0;
  letter-spacing: 0.08em;
}

.queue-song {
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.1;
  color: var(--text-main);
  word-break: break-word;
}

.queue-song.pending {
  color: rgba(255, 204, 148, 1);
}

.mini-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.12);
}

.mini-pill.ready {
  color: var(--green);
}

.mini-pill.pending {
  color: var(--gold);
}

.empty-card {
  display: grid;
  align-content: center;
  gap: 10px;
}

.empty-title {
  font-size: 28px;
  line-height: 1;
}

.empty-copy {
  color: var(--text-soft);
  line-height: 1.7;
}

.queue-list .queue-card:nth-child(n + 6) {
  display: none;
}

@keyframes currentCardOut {
  from {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    filter: blur(0);
  }
  to {
    opacity: 0;
    transform: translate3d(0, -12px, 0) scale(0.985);
    filter: blur(8px);
  }
}

@keyframes queueCardEnter {
  from {
    opacity: 0;
    transform: translate3d(0, 14px, 0) scale(0.985);
    filter: blur(8px);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    filter: blur(0);
  }
}

@keyframes counterPulse {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
    box-shadow: 0 0 0 rgba(118, 239, 226, 0);
  }
  45% {
    transform: translate3d(0, 0, 0) scale(1.08);
    box-shadow: 0 0 24px rgba(118, 239, 226, 0.22);
  }
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    box-shadow: 0 0 0 rgba(118, 239, 226, 0);
  }
}

@media (max-aspect-ratio: 10/16) {
  .overlay-shell {
    --widget-width: min(396px, 60vw);
    padding:
      max(76px, 11vh, env(safe-area-inset-top))
      12px
      max(12px, env(safe-area-inset-bottom))
      12px;
  }

  .marquee-shell {
    gap: 10px;
    padding: 12px 16px;
    margin-bottom: 12px;
    border-radius: 18px;
  }

  .marquee-label,
  .panel-kicker,
  .queue-meta,
  .focus-tip,
  .focus-meta,
  .empty-copy {
    font-size: 14px;
    letter-spacing: 0.12em;
  }

  .marquee-copy {
    font-size: 30px;
    line-height: 1.18;
  }

  .overlay-layout {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .current-panel,
  .queue-panel {
    padding: 18px;
    border-radius: 20px;
  }

  .panel-head {
    gap: 10px;
    margin-bottom: 12px;
  }

  .panel-title {
    font-size: clamp(28px, 6.4vw, 36px);
  }

  .queue-title {
    font-size: clamp(28px, 6.4vw, 36px);
  }

  .queue-counter {
    min-width: 122px;
    min-height: 42px;
    padding: 0 16px;
    font-size: 24px;
  }

  .current-slot,
  .focus-card,
  .empty-card {
    min-height: 0;
  }

  .focus-card,
  .empty-card {
    padding: 20px;
    border-radius: 18px;
  }

  .focus-top {
    gap: 10px;
  }

  .viewer-name {
    font-size: clamp(26px, 6.2vw, 36px);
  }

  .focus-song {
    font-size: clamp(42px, 8.4vw, 56px);
    line-height: 1.04;
  }

  .state-pill {
    min-height: 36px;
    padding: 0 12px;
    font-size: 15px;
  }

  .queue-list {
    gap: 8px;
  }

  .queue-card {
    gap: 8px;
    padding: 14px 16px;
    border-radius: 18px;
  }

  .queue-card-top {
    grid-template-columns: 36px minmax(0, 1fr) auto;
    gap: 10px;
  }

  .queue-index {
    font-size: 28px;
  }

  .queue-name {
    font-size: 20px;
  }

  .queue-song {
    font-size: clamp(24px, 5.8vw, 32px);
    line-height: 1.1;
  }

  .mini-pill {
    min-height: 30px;
    padding: 0 12px;
    font-size: 14px;
  }

  .queue-list .queue-card:nth-child(n + 5) {
    display: none;
  }
}

@keyframes marquee {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(calc(-1 * var(--marquee-distance)), 0, 0);
  }
}

@media (max-width: 1100px) {
  .overlay-shell {
    --widget-width: min(400px, 48vw);
  }
}

@media (max-width: 720px) {
  .overlay-shell {
    --widget-width: min(380px, 66vw);
    padding: 68px 10px 10px;
  }

  .current-panel,
  .queue-panel {
    padding: 18px;
  }

  .focus-top,
  .panel-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .queue-card-top {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .mini-pill {
    grid-column: 2;
    justify-self: start;
  }

  .focus-song {
    font-size: clamp(42px, 10vw, 54px);
  }

  .queue-song {
    font-size: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}