.brainwave-app{--boost-color:#fbbf24}.brainwave-stage{--stone-size:min(560px, 82cqw, max(280px, 84cqh));--stone-glow-strength:55%;--stone-glow-width:28px;--stone-frequency-font-size:16px;--stone-frequency-font-size-mobile:12px;--stone-beat-font-size:32px;--stone-beat-font-size-mobile:24px;--stone-text-glow-strength:55%;--stone-text-glow-width:4px;--wave-color-custom:#67e8f9;--wave-color-beta:#6ee7b7;--wave-color-gamma:#f0abfc;--wave-color-alpha:#fde047;--wave-color-theta:#fbbf24;--wave-color-delta:#fca5a5;--stone-surface-shadow:0 18px 34px #00000057, inset 1px 2px 2px #ffffff7a, inset 5px 7px 12px #ffffff1f, inset -2px -3px 3px #0000004d, inset -9px -12px 18px #00000026;--wave-color:var(--wave-color-custom)}.brainwave-stage[data-wave=beta]{--wave-color:var(--wave-color-beta)}.brainwave-stage[data-wave=gamma]{--wave-color:var(--wave-color-gamma)}.brainwave-stage[data-wave=alpha]{--wave-color:var(--wave-color-alpha)}.brainwave-stage[data-wave=theta]{--wave-color:var(--wave-color-theta)}.brainwave-stage[data-wave=delta]{--wave-color:var(--wave-color-delta)}.brainwave-app{background:#171a1c;flex-direction:column;width:100%;height:100dvh;min-height:0;display:flex;overflow:hidden}.brainwave-header{z-index:4;flex:0 0 64px;align-items:center;gap:14px;padding:0 20px;display:flex}.brainwave-back,.brainwave-play{flex:none;justify-content:center;align-items:center;gap:8px;height:40px;padding:0 12px;text-decoration:none;display:inline-flex}.brainwave-back{width:40px;padding:0}.brainwave-brand{align-items:baseline;gap:12px;min-width:0;display:flex}.brainwave-brand-name{color:#f0f3f4;font-size:15px;font-weight:600;text-decoration:none}.brainwave-brand>span{color:#929da1;font-size:12px}.brainwave-header-actions{align-items:center;gap:12px;margin-left:auto;display:flex}.brainwave-master{color:#a7b1b5;align-items:center;gap:9px;width:156px;display:flex}.brainwave-master .ui-range{flex:1;min-width:0}.brainwave-play{min-width:92px}.brainwave-reset{width:40px;height:40px}.brainwave-stage{background:radial-gradient(at 50% 53%,#222729 0,#1c2022 50%,#181b1d 100%);flex:auto;place-items:safe center;min-width:0;min-height:0;padding:24px 20px;display:grid;position:relative;overflow:auto;container-type:size}.brainwave-light-waves{pointer-events:none;position:absolute;inset:0;overflow:hidden;mask-image:radial-gradient(closest-side,#000 35%,#0000 100%)}.brainwave-light-wave{width:var(--stone-size);aspect-ratio:1;border:2px solid var(--wave-color);border-radius:var(--stone-shape);box-shadow:0 0 20px var(--wave-color), inset 0 0 16px var(--wave-color);opacity:0;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.brainwave-light-wave[data-wave=beta]{--wave-color:var(--wave-color-beta)}.brainwave-light-wave[data-wave=gamma]{--wave-color:var(--wave-color-gamma)}.brainwave-light-wave[data-wave=alpha]{--wave-color:var(--wave-color-alpha)}.brainwave-light-wave[data-wave=theta]{--wave-color:var(--wave-color-theta)}.brainwave-light-wave[data-wave=delta]{--wave-color:var(--wave-color-delta)}.brainwave-focus-stone{z-index:1;width:var(--stone-size);aspect-ratio:1;border-radius:var(--stone-shape);color:#e5edef;cursor:pointer;text-align:left;-webkit-tap-highlight-color:transparent;background:0 0;border:0;padding:0;position:relative}.brainwave-focus-stone:focus-visible{outline:2px solid var(--wave-color);outline-offset:8px}.brainwave-stone-surface{pointer-events:none;filter:drop-shadow(0 0 7px #00000073) drop-shadow(0 0 var(--stone-glow-width) color-mix(in srgb, var(--wave-color) var(--stone-glow-strength), transparent));position:absolute;inset:0}.brainwave-stage[data-playing=false] .brainwave-stone-surface{filter:drop-shadow(0 0 7px #00000073)}.brainwave-stone-surface>.glass-stone-fine{--tw-shadow:var(--stone-surface-shadow);backdrop-filter:blur(3px)saturate(115%);background-color:#ffffff29}.brainwave-stone-content{pointer-events:none;flex-direction:column;justify-content:center;align-items:center;gap:10px;display:flex;position:absolute;inset:10% 14%}.brainwave-frequency-row{grid-template-columns:minmax(0,1fr) minmax(0,.85fr) minmax(0,1fr);align-items:center;gap:8px;width:100%;display:grid}.brainwave-tone-frequency{color:#f0f5f6;min-width:0;font-size:var(--stone-frequency-font-size);text-align:center;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;font-weight:500;line-height:1.4}.brainwave-brain-icon{aspect-ratio:1;color:#dce6e9;justify-self:center;width:100%;max-width:112px;position:relative}.brainwave-brain-icon>svg{width:100%;height:100%;position:absolute;inset:0}.brainwave-brain-icon .brainwave-circuit-color{color:var(--wave-color);clip-path:inset(0 0 0 50%);transition:color .6s}.brainwave-stage[data-playing=false] .brainwave-brain-icon .brainwave-circuit-color{color:#2d3133}.brainwave-stage[data-playing=true] .brainwave-circuit-color path:not(:nth-of-type(8)){animation:1.75s ease-in-out both brainwave-circuit-prepulse}@keyframes brainwave-circuit-prepulse{0%{stroke:var(--wave-color);stroke-width:1.5px;opacity:1;animation-timing-function:cubic-bezier(.55,0,.75,.35)}60%{stroke:color-mix(in srgb, var(--wave-color) 70%, white);stroke-width:1.9px;opacity:1;animation-timing-function:ease-out}to{stroke:var(--wave-color);stroke-width:1.5px;opacity:1}}.brainwave-stone-title{color:#f0f5f6;text-align:center;font-size:18px;font-weight:500;line-height:1.4}.brainwave-beat-readout{width:100%;color:var(--wave-color);font-size:var(--stone-beat-font-size);text-align:center;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;gap:4px;line-height:1.3;display:grid}.brainwave-beat-readout strong{font-weight:500}.brainwave-beat-band{font-size:14px}.brainwave-tone-frequency,.brainwave-beat-readout{text-shadow:0 0 var(--stone-text-glow-width) color-mix(in srgb, var(--wave-color) var(--stone-text-glow-strength), transparent), 0 0 calc(var(--stone-text-glow-width) * 3) color-mix(in srgb, var(--wave-color) calc(var(--stone-text-glow-strength) / 2), transparent)}.brainwave-stage[data-playing=false] :is(.brainwave-tone-frequency,.brainwave-beat-readout){color:#2d3133;text-shadow:none}.brainwave-footer{border-top:1px solid var(--ui-edge);flex:none;align-items:center;gap:16px;min-height:48px;padding:8px 20px;display:flex}.brainwave-footer p{color:#9ba6aa;overflow-wrap:anywhere;min-width:0;margin:0;font-size:11px;line-height:1.4}.brainwave-footer a{color:#a9dce1;text-underline-offset:3px;flex:none;font-size:11px;text-decoration:underline}.brainwave-setting-field{flex-direction:column;gap:7px;display:flex}.brainwave-setting-field>span{justify-content:space-between;align-items:center;gap:12px;display:flex}.brainwave-setting-field output{color:#d9e3e5;font-variant-numeric:tabular-nums;font-size:11px}.brainwave-carrier-sync{color:#8a9498;align-items:center;gap:4px;min-width:0;font-size:9px;line-height:1.2;display:flex}.brainwave-carrier-sync>span{text-align:right}.brainwave-carrier-sync .ui-control.ui-control-icon{flex:none;width:28px;min-width:28px;height:28px;padding:0}.brainwave-boost[data-active=true]{--ui-accent:var(--boost-color)}.brainwave-boost[data-active=true] output{color:var(--boost-color)}.brainwave-study-note{border-top:1px solid var(--ui-edge);color:#8f9b9f;padding-top:12px;font-size:11px;line-height:1.6}.brainwave-preset-description{border-top:1px solid var(--ui-edge);color:#a7b1b5;padding-top:12px;font-size:12px;line-height:1.55}.brainwave-preset-description-disclosure{cursor:pointer;flex-direction:column;align-items:stretch;display:flex;position:relative}.brainwave-preset-description-disclosure:focus-visible{outline-offset:3px;outline:2px solid #fff}.brainwave-preset-description-header{justify-content:space-between;align-items:center;gap:12px;display:flex}.brainwave-preset-description-header .settings-section-heading{margin:0}.brainwave-preset-description-text{min-width:0;height:auto;transition:height .38s cubic-bezier(.22,.61,.36,1);overflow:hidden}.brainwave-preset-description-measure{visibility:hidden;pointer-events:none;position:absolute;top:0;left:0;right:0}.brainwave-preset-description-chevron{flex:none;transition:transform .3s}.brainwave-preset-description-disclosure[aria-expanded=true] .brainwave-preset-description-chevron{transform:rotate(180deg)}.brainwave-preset-description-collapsed{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.brainwave-preset-description p{margin:6px 0 0}.brainwave-study-note a{color:#a9dce1;text-underline-offset:3px;text-decoration:underline}.brainwave-study-note p{margin:6px 0 0}.brainwave-study-links{flex-wrap:wrap;gap:12px;margin-top:8px;display:flex}@media (width<=700px){.brainwave-header{flex-wrap:wrap;flex:none;gap:8px 10px;padding:10px 12px}.brainwave-brand{flex:1}.brainwave-brand>span{font-size:10px}.brainwave-header-actions{gap:10px;width:100%}.brainwave-master{flex:1;width:auto;min-width:0}.brainwave-stone-title{font-size:16px}.brainwave-tone-frequency{font-size:var(--stone-frequency-font-size-mobile)}.brainwave-beat-readout{font-size:var(--stone-beat-font-size-mobile)}.brainwave-footer{gap:8px;padding:8px 12px}.brainwave-footer p{font-size:10px}.brainwave-footer a{display:none}}@media (prefers-reduced-motion:reduce){.brainwave-brain-icon .brainwave-circuit-color{transition:none}.brainwave-stage[data-playing=true] .brainwave-circuit-color path:not(:nth-of-type(8)){animation:none}.brainwave-preset-description-text{transition:none}}