Toolbox/public/tools/zen_box/zen_box.css

:root {
  --bg-deep:    #060612;
  --bg-mid:     #0a0a1e;
  --surface:    rgba(255,255,255,0.06);
  --surface2:   rgba(255,255,255,0.10);
  --border:     rgba(255,255,255,0.08);
  --gold:       #e8b86d;
  --gold-dim:   #a07840;
  --gold-glow:  rgba(232,184,109,0.15);
  --gold-soft:  rgba(232,184,109,0.08);
  --text:       #e8e6f0;
  --text-dim:   #7a7890;
  --safe-top:    env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  background: var(--bg-deep);
  color: var(--text);
  font-family: -apple-system, 'PingFang SC', 'Helvetica Neue', sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
  overflow: hidden;
  user-select: none;
}

.starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 40%, #0d0d2b 0%, #080818 40%, #050510 70%, #030308 100%);
}
.starfield::before {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  top: 28%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(232,184,109,0.04) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.stars-sm, .stars-md, .stars-lg {
  position: absolute;
  inset: 0;
  border-radius: 50%;
}
.stars-sm {
  width: 1px; height: 1px;
  background: transparent;
  box-shadow:
    12px 45px 0 0.5px rgba(255,255,255,0.22),
    78px 120px 0 0.5px rgba(255,255,255,0.18),
    145px 30px 0 0.5px rgba(255,255,255,0.26),
    200px 88px 0 0.5px rgba(255,255,255,0.16),
    260px 155px 0 0.5px rgba(255,255,255,0.20),
    310px 22px 0 0.5px rgba(255,255,255,0.24),
    55px 210px 0 0.5px rgba(255,255,255,0.14),
    180px 260px 0 0.5px rgba(255,255,255,0.18),
    340px 95px 0 0.5px rgba(255,255,255,0.22),
    30px 310px 0 0.5px rgba(255,255,255,0.16),
    120px 340px 0 0.5px rgba(255,255,255,0.20),
    225px 180px 0 0.5px rgba(255,255,255,0.14),
    290px 280px 0 0.5px rgba(255,255,255,0.18),
    370px 40px 0 0.5px rgba(255,255,255,0.22),
    95px 140px 0 0.5px rgba(255,255,255,0.17),
    350px 200px 0 0.5px rgba(255,255,255,0.15),
    160px 70px 0 0.5px rgba(255,255,255,0.24),
    240px 320px 0 0.5px rgba(255,255,255,0.19),
    40px 380px 0 0.5px rgba(255,255,255,0.14),
    300px 360px 0 0.5px rgba(255,255,255,0.21),
    190px 400px 0 0.5px rgba(255,255,255,0.16),
    70px 450px 0 0.5px rgba(255,255,255,0.18),
    330px 420px 0 0.5px rgba(255,255,255,0.14),
    250px 470px 0 0.5px rgba(255,255,255,0.20),
    140px 500px 0 0.5px rgba(255,255,255,0.17),
    20px 540px 0 0.5px rgba(255,255,255,0.22),
    200px 560px 0 0.5px rgba(255,255,255,0.15),
    310px 550px 0 0.5px rgba(255,255,255,0.19),
    100px 580px 0 0.5px rgba(255,255,255,0.14),
    360px 580px 0 0.5px rgba(255,255,255,0.18),
    410px 55px 0 0.5px rgba(255,255,255,0.16),
    440px 140px 0 0.5px rgba(255,255,255,0.20),
    390px 250px 0 0.5px rgba(255,255,255,0.14),
    420px 330px 0 0.5px rgba(255,255,255,0.18),
    460px 75px 0 0.5px rgba(255,255,255,0.22),
    470px 200px 0 0.5px rgba(255,255,255,0.15),
    450px 390px 0 0.5px rgba(255,255,255,0.16),
    430px 470px 0 0.5px rgba(255,255,255,0.20),
    400px 600px 0 0.5px rgba(255,255,255,0.14),
    8px 8px 0 0.5px rgba(255,255,255,0.12),
    110px 12px 0 0.5px rgba(255,255,255,0.14),
    230px 6px 0 0.5px rgba(255,255,255,0.10),
    355px 14px 0 0.5px rgba(255,255,255,0.13),
    460px 10px 0 0.5px rgba(255,255,255,0.11),
    50px 680px 0 0.5px rgba(255,255,255,0.12),
    180px 720px 0 0.5px rgba(255,255,255,0.14),
    290px 700px 0 0.5px rgba(255,255,255,0.10),
    380px 740px 0 0.5px rgba(255,255,255,0.13),
    440px 680px 0 0.5px rgba(255,255,255,0.11),
    150px 800px 0 0.5px rgba(255,255,255,0.10),
    330px 820px 0 0.5px rgba(255,255,255,0.12);
  animation: twinkle-sm 6s ease-in-out infinite alternate;
}
.stars-md {
  width: 1.5px; height: 1.5px;
  background: transparent;
  box-shadow:
    50px 80px 0 0.5px rgba(255,255,255,0.32),
    170px 150px 0 0.5px rgba(255,255,255,0.28),
    280px 60px 0 0.5px rgba(255,255,255,0.35),
    350px 130px 0 0.5px rgba(255,255,255,0.26),
    90px 250px 0 0.5px rgba(255,255,255,0.30),
    220px 300px 0 0.5px rgba(255,255,255,0.24),
    320px 230px 0 0.5px rgba(255,255,255,0.32),
    40px 350px 0 0.5px rgba(255,255,255,0.28),
    150px 420px 0 0.5px rgba(255,255,255,0.26),
    270px 380px 0 0.5px rgba(255,255,255,0.34),
    110px 490px 0 0.5px rgba(255,255,255,0.30),
    340px 460px 0 0.5px rgba(255,255,255,0.28),
    200px 520px 0 0.5px rgba(255,255,255,0.24),
    60px 600px 0 0.5px rgba(255,255,255,0.32),
    300px 620px 0 0.5px rgba(255,255,255,0.26),
    405px 90px 0 0.5px rgba(255,255,255,0.28),
    445px 210px 0 0.5px rgba(255,255,255,0.24),
    415px 360px 0 0.5px rgba(255,255,255,0.30),
    460px 480px 0 0.5px rgba(255,255,255,0.22),
    435px 580px 0 0.5px rgba(255,255,255,0.26),
    80px 660px 0 0.5px rgba(255,255,255,0.24),
    240px 690px 0 0.5px rgba(255,255,255,0.28),
    370px 670px 0 0.5px rgba(255,255,255,0.22),
    130px 760px 0 0.5px rgba(255,255,255,0.20),
    310px 780px 0 0.5px rgba(255,255,255,0.24);
  animation: twinkle-md 8s ease-in-out infinite alternate;
}
.stars-lg {
  width: 2px; height: 2px;
  background: transparent;
  box-shadow:
    130px 100px 0 0.5px rgba(232,184,109,0.32),
    300px 170px 0 0.5px rgba(255,255,255,0.42),
    70px 300px 0 0.5px rgba(232,184,109,0.22),
    250px 400px 0 0.5px rgba(255,255,255,0.38),
    360px 350px 0 0.5px rgba(232,184,109,0.28),
    180px 550px 0 0.5px rgba(255,255,255,0.36),
    330px 530px 0 0.5px rgba(232,184,109,0.20),
    420px 160px 0 0.5px rgba(255,255,255,0.38),
    455px 320px 0 0.5px rgba(232,184,109,0.24),
    410px 500px 0 0.5px rgba(255,255,255,0.34),
    100px 650px 0 0.5px rgba(232,184,109,0.18),
    280px 700px 0 0.5px rgba(255,255,255,0.32),
    400px 660px 0 0.5px rgba(232,184,109,0.20);
  animation: twinkle-lg 10s ease-in-out infinite alternate;
}
@keyframes twinkle-sm { 0% { opacity: 0.6; } 100% { opacity: 1; } }
@keyframes twinkle-md { 0% { opacity: 0.7; } 100% { opacity: 1; } }
@keyframes twinkle-lg { 0% { opacity: 0.5; } 100% { opacity: 1; } }

.app {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100dvh;
  max-width: 480px;
  margin: 0 auto;
}

.header {
  padding: 16px 20px 8px;
  padding-top: calc(12px + var(--safe-top));
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}
.header-title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-title span { color: var(--gold); }
.header-icon {
  width: 24px; height: 24px;
  flex-shrink: 0;
}
.header-count {
  font-size: 13px;
  color: var(--text-dim);
}

.zen-center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 0 20px;
  min-height: 0;
}

.orbit-wrap {
  position: relative;
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.orbit-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(232,184,109,0.12);
  animation: orbit-spin 30s linear infinite;
  animation-play-state: running;
}
.orbit-ring-2 {
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  border: 1px solid rgba(232,184,109,0.06);
  animation: orbit-spin 45s linear infinite reverse;
}
.orbit-dot-1 {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.55;
  box-shadow: 0 0 8px rgba(232,184,109,0.5);
  top: calc(50% - 110px - 3px);
  left: calc(50% - 3px);
  transform-origin: 3px calc(110px + 3px);
  animation: orbit-spin 30s linear infinite;
}
.orbit-dot-2 {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.30;
  box-shadow: 0 0 6px rgba(232,184,109,0.3);
  top: calc(50% + 128px - 2px);
  left: calc(50% - 2px);
  transform-origin: 2px calc(-128px + 2px);
  animation: orbit-spin 45s linear infinite reverse;
}
@keyframes orbit-spin { to { transform: rotate(360deg); } }

.zen-glow {
  position: absolute;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--gold-soft) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 1.2s ease;
  pointer-events: none;
}
.zen-glow.active {
  opacity: 1;
  animation: glow-pulse 4s ease-in-out infinite;
}
@keyframes glow-pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
}

.zen-figure {
  position: relative;
  z-index: 2;
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.zen-figure svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 20px rgba(232,184,109,0.15));
}

.zen-waves {
  position: absolute;
  inset: -10px;
  pointer-events: none;
  z-index: 1;
}
.zen-wave {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(232,184,109,0.08);
  opacity: 0;
  pointer-events: none;
}
.zen-wave.active {
  animation: wave-expand 3s ease-out infinite;
}
.zen-wave:nth-child(1) { width: 160px; height: 160px; animation-delay: 0s; }
.zen-wave:nth-child(2) { width: 160px; height: 160px; animation-delay: 1s; }
.zen-wave:nth-child(3) { width: 160px; height: 160px; animation-delay: 2s; }
@keyframes wave-expand {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
  100% { transform: translate(-50%, -50%) scale(1.8); opacity: 0; }
}

.track-info {
  text-align: center;
  padding: 0 20px;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}
.track-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
}
.track-artist {
  font-size: 13px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bottom-bar {
  flex-shrink: 0;
  padding: 12px 20px;
  padding-bottom: calc(12px + var(--safe-bottom));
  position: relative;
  z-index: 20;
}
.glass-bar {
  background: rgba(10,10,30,0.65);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 14px 18px 16px;
}

.progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 12px;
}
.progress-bar {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.10);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.progress-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(232,184,109,0.4);
}
.progress-bar::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 2px;
}
.time-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
.ctrl-btn {
  border: none;
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.ctrl-btn:active { transform: scale(0.9); }
.ctrl-btn.active-mode { color: var(--gold); }
.ctrl-btn svg { display: block; }

.play-btn {
  width: 52px;
  height: 52px;
  min-width: 52px;
  min-height: 52px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--gold);
  color: var(--bg-deep);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, box-shadow 0.3s;
  box-shadow: 0 0 20px rgba(232,184,109,0.25);
  -webkit-tap-highlight-color: transparent;
  position: relative;
  overflow: hidden;
}
.play-btn:active { transform: scale(0.94); }
.play-btn::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(232,184,109,0.2);
  pointer-events: none;
}

.secondary-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 10px;
}
.sec-btn {
  border: none;
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.sec-btn:active { opacity: 0.6; }
.sec-btn.active-mode { color: var(--gold); }

.sheet-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.sheet-overlay.open {
  opacity: 1;
  visibility: visible;
}
.sheet {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  width: 100%;
  max-width: 480px;
  max-height: 70dvh;
  z-index: 51;
  background: rgba(12,12,30,0.85);
  backdrop-filter: blur(30px) saturate(1.3);
  -webkit-backdrop-filter: blur(30px) saturate(1.3);
  border-top: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
  display: flex;
  flex-direction: column;
}
.sheet.open {
  transform: translateX(-50%) translateY(0);
}
.sheet-handle {
  width: 36px;
  height: 4px;
  background: rgba(255,255,255,0.2);
  border-radius: 2px;
  margin: 10px auto 6px;
  flex-shrink: 0;
}
.sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 20px 12px;
  flex-shrink: 0;
}
.sheet-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.sheet-close {
  border: none;
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
}
.sheet-close:active { opacity: 0.6; }

.sheet-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 20px;
  padding-bottom: calc(16px + var(--safe-bottom));
  -webkit-overflow-scrolling: touch;
}
.sheet-list::-webkit-scrollbar { display: none; }

.playlist-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.15s;
}
.playlist-item:last-child { border-bottom: none; }
.playlist-item:active { opacity: 0.6; }
.playlist-item.active .item-title { color: var(--gold); }

.item-num {
  font-size: 13px;
  color: var(--text-dim);
  width: 24px;
  text-align: center;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.item-num.playing-icon { color: var(--gold); }

.item-info { flex: 1; min-width: 0; }
.item-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 2px;
}
.item-sub {
  font-size: 12px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-cache {
  flex-shrink: 0;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-dim);
}

.item-cache.cached {
  color: var(--gold);
  border-color: rgba(232,184,109,0.32);
  background: rgba(232,184,109,0.08);
}

.item-cache.pending {
  background: rgba(255,255,255,0.04);
}

.settings-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 24;
}

.settings-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.settings-panel {
  position: fixed;
  left: 50%;
  top: calc(18px + var(--safe-top));
  width: min(420px, calc(100vw - 24px));
  transform: translateX(-50%) translateY(-12px);
  opacity: 0;
  pointer-events: none;
  background: rgba(17,17,30,0.94);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 18px 48px rgba(0,0,0,0.38);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 25;
}

.settings-panel.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px 10px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.settings-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.settings-body {
  padding: 14px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.setting-label {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}

.setting-select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  outline: none;
}

.setting-select:focus {
  border-color: rgba(232,184,109,0.38);
}

.setting-summary {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--gold);
  font-size: 13px;
}

.setting-note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-dim);
}

.marquee-host {
  width: 100%;
  overflow: hidden;
  min-width: 0;
}

.marquee-track {
  display: inline-flex;
  align-items: center;
  min-width: 100%;
  transform: translateX(0);
}

.marquee-copy {
  white-space: nowrap;
  flex-shrink: 0;
}

.marquee-gap {
  width: 42px;
  flex-shrink: 0;
  display: none;
}

.marquee-copy-duplicate {
  display: none;
}

.marquee-host:not(.marquee-active) .marquee-track {
  display: block;
}

.marquee-host:not(.marquee-active) .marquee-copy-primary {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}

.marquee-host.marquee-active .marquee-gap,
.marquee-host.marquee-active .marquee-copy-duplicate {
  display: inline-block;
}

.marquee-host.marquee-active .marquee-track {
  width: max-content;
  animation: marquee-scroll var(--marquee-duration, 14s) linear infinite;
  animation-delay: 1.2s;
}

@keyframes marquee-scroll {
  0%, 8% {
    transform: translateX(0);
  }
  92%, 100% {
    transform: translateX(calc(-1 * var(--marquee-distance, 0px)));
  }
}

.setting-switch {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
}

.setting-switch input {
  width: 16px;
  height: 16px;
  accent-color: var(--gold);
}

.toast {
  position: fixed;
  top: calc(60px + var(--safe-top));
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: rgba(35,34,53,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  font-size: 13px;
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  white-space: nowrap;
  z-index: 100;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.7;
}