:root,[data-theme=light]{color-scheme:light;--bt-bg: #e3f1fb;--bt-bg-soft: #f0f7fd;--bt-bg-gradient: linear-gradient(180deg, #eef6fd 0%, #dcedfa 100%);--bt-surface: #f6fafe;--bt-surface-strong: #ffffff;--bt-surface-muted: #d5e8f7;--bt-surface-row: #ebf4fb;--bt-text: #15283a;--bt-text-muted: #425b72;--bt-border: rgba(21, 40, 58, .16);--bt-border-strong: rgba(21, 40, 58, .34);--bt-border-input: rgba(21, 40, 58, .52);--bt-accent: #e8958d;--bt-accent-strong: #9a3f3a;--bt-ice: #5cc8e8;--bt-accent-soft: rgba(140, 196, 236, .4);--bt-primary: #245e9c;--bt-primary-hover: #1c4f86;--bt-primary-text: #f8fbff;--bt-danger: #a3453d;--bt-success: #2b7a6c;--bt-warning: #8c682b;--bt-surface-inset: #e1eef9;--bt-surface-hover: rgba(21, 40, 58, .04);--bt-surface-pressed: rgba(21, 40, 58, .08);--bt-hairline: rgba(21, 40, 58, .08);--bt-primary-soft: rgba(36, 94, 156, .1);--bt-accent-tint: rgba(232, 149, 141, .16);--bt-success-soft: rgba(43, 122, 108, .12);--bt-danger-soft: rgba(163, 69, 61, .1);--bt-warning-soft: rgba(140, 104, 43, .12);--bt-elev-0: none;--bt-elev-1: 0 1px 2px rgba(21, 40, 58, .05), 0 1px 1px rgba(21, 40, 58, .03);--bt-elev-2: 0 1px 2px rgba(21, 40, 58, .04), 0 6px 16px rgba(21, 40, 58, .07);--bt-elev-3: 0 2px 4px rgba(21, 40, 58, .04), 0 16px 40px rgba(21, 40, 58, .12);--bt-elev-4: 0 4px 8px rgba(21, 40, 58, .05), 0 32px 80px rgba(21, 40, 58, .2);--bt-shadow-soft: var(--bt-elev-2);--bt-shadow: var(--bt-elev-3);--bt-shadow-raised: var(--bt-elev-4);--bt-font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;--bt-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;--bt-weight-regular: 400;--bt-weight-medium: 600;--bt-weight-bold: 700;--bt-text-eyebrow: .6875rem;--bt-text-eyebrow-leading: 1.2;--bt-text-eyebrow-tracking: .08em;--bt-text-caption: .75rem;--bt-text-caption-leading: 1.45;--bt-text-body: .9375rem;--bt-text-body-leading: 1.5;--bt-text-title: 1.0625rem;--bt-text-title-leading: 1.35;--bt-text-title-tracking: -.005em;--bt-text-section: 1.3125rem;--bt-text-section-leading: 1.25;--bt-text-section-tracking: -.01em;--bt-text-page: 2rem;--bt-text-page-leading: 1.12;--bt-text-page-tracking: -.02em;--bt-text-hero: clamp(2.75rem, 6vw, 4.5rem);--bt-text-hero-leading: 1.04;--bt-text-hero-tracking: -.035em;--bt-text-display-sm: clamp(2rem, 4vw, 3rem);--bt-text-display-sm-leading: 1.1;--bt-text-display-sm-tracking: -.025em;--bt-display-md: 4rem;--bt-display-lg: clamp(3.25rem, 9vw, 7rem);--bt-display-xl: clamp(4rem, 12vw, 9.25rem);--bt-display-leading: 1;--bt-display-tracking: -.03em;--bt-radius-xs: 8px;--bt-radius-sm: 12px;--bt-radius-md: 16px;--bt-radius-lg: 20px;--bt-radius-xl: 24px;--bt-radius: var(--bt-radius-sm);--bt-radius-small: var(--bt-radius-xs);--bt-radius-pill: 999px;--bt-z-sticky: 10;--bt-z-dock: 20;--bt-z-header: 30;--bt-z-popover: 40;--bt-z-dialog: 50;--bt-z-toast: 60;--bt-space-05: 2px;--bt-space-1: 4px;--bt-space-2: 8px;--bt-space-3: 12px;--bt-space-4: 16px;--bt-space-5: 20px;--bt-space-6: 24px;--bt-space-8: 32px;--bt-space-10: 40px;--bt-space-12: 48px;--bt-space-16: 64px;--bt-control-height: 44px;--bt-control-height-lg: 52px;--bt-motion-fast: .12s;--bt-motion-normal: .18s;--bt-motion-slow: .26s;--bt-ease-standard: cubic-bezier(.2, 0, 0, 1);--fo-atmosphere: color-mix(in srgb, var(--bt-bg-soft) 76%, var(--bt-accent-soft));--fo-surface: color-mix(in srgb, var(--bt-surface-strong) 88%, var(--bt-accent-soft));--fo-surface-soft: color-mix(in srgb, var(--bt-surface-muted) 72%, var(--bt-accent-soft));--fo-current: color-mix(in srgb, var(--bt-primary) 55%, transparent);--fo-focus-ring: color-mix(in srgb, var(--bt-primary) 68%, transparent);--bt-focus-ring: var(--fo-focus-ring);--bt-focus-ring-width: 3px;--bt-focus-ring-offset: 2px;--fo-shadow: var(--bt-shadow);--fo-shadow-soft: var(--bt-shadow-soft);color:var(--bt-text);background:var(--bt-bg-gradient);font-family:var(--bt-font-sans)}:root[data-theme=dark],[data-theme=dark]{color-scheme:dark;--bt-bg: #071127;--bt-bg-soft: #0a1a38;--bt-bg-gradient: radial-gradient(circle at 66% -18%, rgba(104, 142, 209, .24), transparent 544px), linear-gradient(160deg, #081730 0%, #071127 48%, #050b1a 100%);--bt-surface: #0d2043;--bt-surface-strong: #12295a;--bt-surface-muted: #1b3768;--bt-surface-row: #0f2349;--bt-text: #f8fbff;--bt-text-muted: #aab9d5;--bt-border: rgba(166, 198, 255, .16);--bt-border-strong: rgba(166, 198, 255, .34);--bt-border-input: rgba(166, 198, 255, .58);--bt-accent: #efaaa3;--bt-accent-strong: #f4c0ba;--bt-ice: #5cc8e8;--bt-accent-soft: rgba(74, 139, 250, .24);--bt-primary: #83adff;--bt-primary-hover: #a3c3ff;--bt-primary-text: #071127;--bt-danger: #f29b90;--bt-success: #7ccdb2;--bt-warning: #e0bd7a;--bt-surface-inset: #050c1f;--bt-surface-hover: rgba(248, 251, 255, .06);--bt-surface-pressed: rgba(248, 251, 255, .1);--bt-hairline: rgba(166, 198, 255, .1);--bt-primary-soft: rgba(131, 173, 255, .16);--bt-accent-tint: rgba(239, 170, 163, .14);--bt-success-soft: rgba(124, 205, 178, .14);--bt-danger-soft: rgba(242, 155, 144, .14);--bt-warning-soft: rgba(224, 189, 122, .14);--bt-elev-1: 0 1px 2px rgba(0, 4, 18, .34), 0 1px 1px rgba(0, 4, 18, .22), inset 0 1px 0 rgba(255, 255, 255, .06);--bt-elev-2: 0 1px 2px rgba(0, 0, 0, .35), 0 6px 16px rgba(0, 0, 0, .3), inset 0 1px 0 rgba(255, 255, 255, .04);--bt-elev-3: 0 2px 4px rgba(0, 4, 18, .42), 0 16px 40px rgba(0, 4, 18, .5), inset 0 1px 0 rgba(255, 255, 255, .07);--bt-elev-4: 0 4px 8px rgba(0, 4, 18, .46), 0 30px 90px rgba(0, 4, 18, .58), inset 0 1px 0 rgba(255, 255, 255, .08);--bt-shadow-soft: var(--bt-elev-2);--bt-shadow: var(--bt-elev-3);--bt-shadow-raised: var(--bt-elev-4);--fo-shadow: var(--bt-shadow);--fo-shadow-soft: var(--bt-shadow-soft)}@media(prefers-reduced-motion:reduce){:root{--bt-motion-fast: .01ms;--bt-motion-normal: .01ms;--bt-motion-slow: .01ms}}*{box-sizing:border-box}html{--site-header-height: 64px;scroll-behavior:smooth;scroll-padding-top:calc(var(--site-header-height) + var(--bt-space-4))}body{display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:auto 1fr auto;min-height:100vh;margin:0;color:var(--bt-text);background:radial-gradient(circle at 86% 0%,var(--bt-accent-soft),transparent 34%),var(--bt-bg-gradient);background-attachment:fixed;font-family:var(--bt-font-sans);font-size:var(--bt-text-body);line-height:var(--bt-text-body-leading);-webkit-font-smoothing:antialiased}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.wrap{width:min(100%,1120px);margin:0 auto;padding-inline:clamp(20px,5vw,48px)}.eyebrow{margin:0;color:var(--bt-primary);font-family:var(--bt-font-mono);font-size:var(--bt-text-eyebrow);font-weight:var(--bt-weight-bold);letter-spacing:.12em;text-transform:uppercase}h1,h2,h3,p{margin:0}h1{font-size:var(--bt-text-hero);font-weight:var(--bt-weight-bold);line-height:var(--bt-text-hero-leading);letter-spacing:var(--bt-text-hero-tracking)}h2{font-size:var(--bt-text-display-sm);font-weight:var(--bt-weight-bold);line-height:var(--bt-text-display-sm-leading);letter-spacing:var(--bt-text-display-sm-tracking)}h3{font-size:var(--bt-text-title);font-weight:var(--bt-weight-medium);line-height:var(--bt-text-title-leading);letter-spacing:var(--bt-text-title-tracking)}.lede{max-width:52ch;color:var(--bt-text-muted);font-size:clamp(1.0625rem,1.8vw,1.25rem);line-height:1.55}.muted{color:var(--bt-text-muted)}.site-header{position:sticky;z-index:var(--bt-z-header);top:0;background:color-mix(in srgb,var(--bt-bg) 78%,transparent);box-shadow:0 1px 0 var(--bt-hairline);backdrop-filter:blur(18px) saturate(180%)}.site-header .wrap{display:flex;align-items:center;gap:var(--bt-space-4);min-height:var(--site-header-height)}.brand{display:inline-flex;align-items:center;gap:var(--bt-space-2);color:var(--bt-text);font-weight:var(--bt-weight-bold);letter-spacing:-.02em;text-decoration:none}.brand img{width:32px;height:32px;filter:drop-shadow(0 1px 2px color-mix(in srgb,var(--bt-text) 22%,transparent))}.brand-word{text-transform:uppercase;letter-spacing:.02em}.site-nav{display:flex;align-items:center;gap:var(--bt-space-1);margin-left:auto}.site-actions{display:flex;align-items:center;gap:var(--bt-space-2)}.site-nav-link{padding:8px var(--bt-space-3);border-radius:var(--bt-radius-pill);color:var(--bt-text-muted);font-weight:var(--bt-weight-medium);text-decoration:none;transition:color var(--bt-motion-normal) var(--bt-ease-standard),background-color var(--bt-motion-normal) var(--bt-ease-standard)}.site-nav-link:hover{color:var(--bt-text);background:var(--bt-surface-hover)}.site-nav-link[aria-current=page]{color:var(--bt-text);background:var(--bt-primary-soft)}.skip-link{position:absolute;z-index:calc(var(--bt-z-header) + 1);top:var(--bt-space-2);left:var(--bt-space-2);padding:var(--bt-space-2) var(--bt-space-4);border-radius:var(--bt-radius-sm);color:var(--bt-primary-text);background:var(--bt-primary);font-weight:var(--bt-weight-bold);text-decoration:none;transform:translateY(-200%)}.skip-link:focus{transform:none}.mobile-nav{display:none;position:relative}.mobile-nav>summary{display:inline-flex;align-items:center;justify-content:center;width:var(--bt-control-height);height:var(--bt-control-height);border-radius:var(--bt-radius-pill);color:var(--bt-text);cursor:pointer;list-style:none}.mobile-nav>summary::-webkit-details-marker{display:none}.mobile-nav>summary:hover{background:var(--bt-surface-hover)}.mobile-nav>summary svg{width:22px;height:22px}.mobile-nav .icon-close,.mobile-nav[open] .icon-open{display:none}.mobile-nav[open] .icon-close{display:block}.mobile-nav-panel{position:absolute;top:calc(100% + var(--bt-space-2));right:0;display:grid;gap:var(--bt-space-1);width:min(86vw,320px);padding:var(--bt-space-3);border-radius:var(--bt-radius-lg);background:var(--bt-surface-strong);box-shadow:var(--bt-elev-3)}.mobile-nav-panel a:not(.btn){padding:var(--bt-space-3) var(--bt-space-4);border-radius:var(--bt-radius-md);color:var(--bt-text);font-weight:var(--bt-weight-medium);text-decoration:none}.mobile-nav-panel a:not(.btn):hover,.mobile-nav-panel a[aria-current=page]{background:var(--bt-primary-soft)}.mobile-nav-panel .btn{margin-top:var(--bt-space-2)}@media(max-width:900px){.site-nav{display:none}.site-actions{margin-left:auto}.mobile-nav{display:block}}@media(max-width:600px){.site-actions .site-cta{display:none}}.site-actions .site-cta{white-space:nowrap}.theme-toggle{margin-inline:var(--bt-space-2)}@media(max-width:900px){.site-nav-link{display:none}}.theme-toggle{display:inline-flex;flex:none;align-items:center;justify-content:center;width:40px;height:40px;border:0;border-radius:var(--bt-radius-pill);color:var(--bt-text-muted);background:transparent;cursor:pointer;transition:background-color var(--bt-motion-normal) var(--bt-ease-standard),color var(--bt-motion-normal) var(--bt-ease-standard),transform var(--bt-motion-fast) var(--bt-ease-standard)}.theme-toggle:hover{color:var(--bt-text);background:var(--bt-surface-hover)}.theme-toggle:active{transform:scale(.94)}.theme-toggle svg{width:18px;height:18px}.theme-toggle .icon-moon{display:none}:root[data-theme=dark] .theme-toggle .icon-sun{display:none}:root[data-theme=dark] .theme-toggle .icon-moon{display:block}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--bt-space-2);min-height:var(--bt-control-height);padding:0 var(--bt-space-5);border:0;border-radius:var(--bt-radius-sm);font-weight:var(--bt-weight-medium);text-decoration:none;cursor:pointer;transition:background-color var(--bt-motion-normal) var(--bt-ease-standard),box-shadow var(--bt-motion-normal) var(--bt-ease-standard),transform var(--bt-motion-fast) var(--bt-ease-standard)}.btn:active{transform:scale(.985)}.btn-pill{border-radius:var(--bt-radius-pill)}.btn-lg{min-height:var(--bt-control-height-lg);padding-inline:var(--bt-space-6);font-size:1.0625rem}.btn-primary{color:var(--bt-primary-text);background:var(--bt-primary);box-shadow:var(--bt-elev-1)}.btn-primary:hover{background:var(--bt-primary-hover);box-shadow:var(--bt-elev-2)}.btn-ghost{color:var(--bt-primary);background:transparent}.btn-ghost:hover{background:var(--bt-primary-soft)}:where(a,button,input,select,textarea,summary,label):focus-visible{outline:var(--bt-focus-ring-width) solid var(--bt-focus-ring);outline-offset:var(--bt-focus-ring-offset)}section{padding-block:clamp(72px,10vw,128px)}.section-head{display:grid;gap:var(--bt-space-3);margin-bottom:var(--bt-space-10);max-width:640px}.section-head.is-center{margin-inline:auto;text-align:center;justify-items:center}.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:var(--bt-space-3)}.hero{display:grid;grid-template-columns:minmax(0,1fr);gap:clamp(var(--bt-space-10),6vw,var(--bt-space-16));padding-block:clamp(56px,8vw,112px);align-items:center}@media(min-width:960px){.hero{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}}.hero-copy{display:grid;gap:var(--bt-space-6);justify-items:start;min-width:0}.hero-note{color:var(--bt-text-muted);font-size:var(--bt-text-caption)}.hero-visual{position:relative;justify-self:center;width:min(100%,380px)}.hero-frame{box-shadow:var(--bt-elev-3)}.hero-fo{position:absolute;z-index:1;top:-24px;right:-24px;width:80px;height:80px;filter:drop-shadow(0 8px 16px color-mix(in srgb,var(--bt-text) 18%,transparent));transform:rotate(6deg)}@media(max-width:959px){.hero-fo{top:-16px;right:8px;width:60px;height:60px}}.card{display:grid;grid-template-columns:minmax(0,1fr);align-content:start;gap:var(--bt-space-3);padding:var(--bt-space-6);border-radius:var(--bt-radius-xl);background:var(--bt-surface-strong);box-shadow:var(--bt-elev-1);transition:box-shadow var(--bt-motion-slow) var(--bt-ease-standard),transform var(--bt-motion-slow) var(--bt-ease-standard)}.card>*{min-width:0}.card p{color:var(--bt-text-muted)}.card.is-inset{background:var(--bt-surface-inset);box-shadow:none}.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--bt-space-4)}.bento>.card{grid-column:span 12}@media(min-width:900px){.bento>.span-7{grid-column:span 7}.bento>.span-5{grid-column:span 5}.bento>.span-4{grid-column:span 4}}.bento>.card:hover{box-shadow:var(--bt-elev-2);transform:translateY(-2px)}.card-visual{margin-top:var(--bt-space-3)}.card-title-row{display:flex;align-items:center;gap:var(--bt-space-3)}.card-icon{display:inline-grid;flex:none;width:36px;height:36px;place-items:center;border-radius:var(--bt-radius-sm);color:var(--bt-primary);background:var(--bt-primary-soft)}.card-icon svg{width:20px;height:20px}.pack-strip{display:flex;gap:var(--bt-space-2);min-width:0}.pack-strip img{flex:1 1 0;min-width:0;height:auto;border-radius:var(--bt-radius-xs);box-shadow:var(--bt-elev-1)}.feature-fo{width:72px;height:72px}.steps{display:grid;gap:var(--bt-space-4);counter-reset:step}@media(min-width:900px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--bt-space-6)}}.step{position:relative;display:grid;align-content:start;gap:var(--bt-space-3)}.step-number{display:inline-grid;width:36px;height:36px;place-items:center;border-radius:var(--bt-radius-pill);color:var(--bt-primary);background:var(--bt-primary-soft);font-family:var(--bt-font-mono);font-weight:var(--bt-weight-bold)}.step p{color:var(--bt-text-muted)}.step-visual{margin-top:var(--bt-space-2)}@media(min-width:900px){.step:not(:last-child):after{position:absolute;top:18px;left:52px;right:calc(-1 * var(--bt-space-6));height:1px;background:var(--bt-hairline);content:""}}.step-fo{display:flex;align-items:center;gap:var(--bt-space-3);padding:var(--bt-space-3) var(--bt-space-4);border-radius:var(--bt-radius-md);background:var(--bt-surface-inset)}.step-fo img{flex:none;width:48px;height:48px}.step-fo-quote{color:var(--bt-text-muted);font-size:var(--bt-text-caption);font-style:italic}.showcase{display:grid;justify-items:center;gap:var(--bt-space-6)}.showcase>input{position:absolute;opacity:0;pointer-events:none}.showcase-controls{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:var(--bt-space-3)}.showcase-tabs,.showcase-theme{display:inline-flex;gap:2px;padding:3px;border-radius:var(--bt-radius-pill);background:var(--bt-surface-inset)}.showcase-tabs label,.showcase-theme button{padding:8px var(--bt-space-4);border:0;border-radius:var(--bt-radius-pill);color:var(--bt-text-muted);background:transparent;font:inherit;font-weight:var(--bt-weight-medium);cursor:pointer;transition:background-color var(--bt-motion-normal) var(--bt-ease-standard),color var(--bt-motion-normal) var(--bt-ease-standard)}.showcase-tabs label:hover,.showcase-theme button:hover{color:var(--bt-text)}#tab-popup:checked~.showcase-controls label[for=tab-popup],#tab-focus:checked~.showcase-controls label[for=tab-focus],#tab-options:checked~.showcase-controls label[for=tab-options],#tab-limit:checked~.showcase-controls label[for=tab-limit],.showcase-theme button[aria-pressed=true]{color:var(--bt-text);background:var(--bt-surface-strong);box-shadow:var(--bt-elev-1)}#tab-popup:focus-visible~.showcase-controls label[for=tab-popup],#tab-focus:focus-visible~.showcase-controls label[for=tab-focus],#tab-options:focus-visible~.showcase-controls label[for=tab-options],#tab-limit:focus-visible~.showcase-controls label[for=tab-limit]{outline:var(--bt-focus-ring-width) solid var(--bt-focus-ring);outline-offset:var(--bt-focus-ring-offset)}.showcase-theme{display:none}.js .showcase-theme{display:inline-flex}.showcase-stage{width:min(100%,880px);color:var(--bt-text)}.showcase-stage .device-frame{box-shadow:var(--bt-elev-4)}.showcase-panel{display:none}#tab-popup:checked~.showcase-stage .panel-popup,#tab-focus:checked~.showcase-stage .panel-focus,#tab-options:checked~.showcase-stage .panel-options,#tab-limit:checked~.showcase-stage .panel-limit{display:block}.showcase-popup{width:min(100%,380px);margin-inline:auto}.panel-limit .showcase-popup{width:min(100%,560px)}.trust{display:grid;gap:var(--bt-space-6)}@media(min-width:800px){.trust{grid-template-columns:repeat(3,minmax(0,1fr));gap:0}.trust>*+*{border-left:1px solid var(--bt-hairline);padding-left:var(--bt-space-8)}.trust>*{padding-right:var(--bt-space-8)}}.trust-item{display:grid;gap:var(--bt-space-2);align-content:start}.trust-item p{color:var(--bt-text-muted)}.cta-band{display:grid;justify-items:center;gap:var(--bt-space-5);padding:clamp(48px,8vw,96px) var(--bt-space-6);border-radius:var(--bt-radius-xl);background:var(--bt-primary-soft);text-align:center}.cta-band .lede{margin-inline:auto}.cta-band 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cubic-bezier(.2,.75,.25,1)}.weather-cloud--back{top:-15%;left:-12%;background:#37496975;transform:translate3d(-5%,0,0)}.weather-cloud--front{top:-9%;right:-21%;background:#19254094;transform:translate3d(5%,0,0)}.weather-horizon{top:auto;height:38%;opacity:0;transition:opacity .7s ease}.weather-horizon:before,.weather-horizon:after{content:"";position:absolute;inset:auto -8% 0;height:72%;transform-origin:bottom}.weather-horizon:before{opacity:.48;background:linear-gradient(180deg,#394b620f,#1422368a);clip-path:polygon(0 72%,10% 48%,18% 61%,29% 31%,38% 58%,50% 24%,62% 55%,71% 38%,82% 63%,91% 43%,100% 66%,100% 100%,0 100%);filter:blur(2.2px)}.weather-horizon:after{height:44%;opacity:.5;background:linear-gradient(180deg,#23394b0a,#081422ad);clip-path:polygon(0 67%,8% 48%,17% 71%,28% 41%,39% 73%,52% 49%,63% 68%,74% 39%,87% 69%,95% 50%,100% 57%,100% 100%,0 100%);filter:blur(4px)}.weather-ground{inset:auto 30% 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24%,#ffffffbd 0 9%,#b0d3eb2e 20% 54%,#010c1d2e 72%);box-shadow:inset -1px -2px 2px #020d1d38,0 1px 2px #cfe7f721}.rain-glass span:nth-child(5n):after{content:"";position:absolute;top:82%;left:42%;width:1px;height:calc(var(--size) * 3.6);opacity:.34;background:linear-gradient(180deg,rgba(186,216,236,.32),transparent)}.snow-plane span{position:absolute;top:-6%;left:var(--x);width:var(--size);height:var(--size);border-radius:46% 54% 58% 42%;opacity:var(--flake-alpha);background:radial-gradient(circle at 36% 30%,#fff,#e1f0fadb 48%,#b3d3e661);filter:blur(var(--flake-blur));box-shadow:0 0 7px #e1f2ff47;animation:snow-fall var(--speed) linear var(--delay) infinite;will-change:transform,opacity}.lightning-flash{opacity:0;background:radial-gradient(circle at 73% 8%,rgba(246,251,255,.98),rgba(166,207,255,.46) 22%,rgba(88,139,204,.16) 48%,transparent 68%);mix-blend-mode:screen}.lightning-bolt{position:absolute;z-index:1;top:-3%;right:9%;width:min(21vw,190px);height:72%;overflow:visible;opacity:0;transform:translate3d(0,-8px,0) scaleY(.96);transform-origin:50% 0;will-change:opacity,transform}.lightning-bolt path{fill:none;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.lightning-bolt__glow{stroke:#99cdffd1;stroke-width:13;filter:blur(7px)}.lightning-bolt__core{stroke:#f7fbff;stroke-width:2.4}.lightning-bolt__branch{stroke:#e0f2ffeb;stroke-width:1.7}.amb[data-weather=rain] .weather-sky,.amb[data-weather=rain] .weather-cloud,.amb[data-weather=rain] .rain-plane,.amb[data-weather=rain] .weather-mist{opacity:1}.amb[data-weather=rain] .rain-glass{opacity:.72}.amb[data-weather=rain] .weather-horizon{opacity:.62}.amb[data-weather=rain] .weather-ground{opacity:.7;background:radial-gradient(ellipse,rgba(155,202,229,.2) 0 18%,rgba(70,124,158,.18) 36%,rgba(24,52,75,.06) 60%,transparent 76%);filter:blur(9px);transform:scaleX(1.08)}.amb[data-weather=rain] .weather-cloud--back,.amb[data-weather=rain] .weather-cloud--front{transform:translateZ(0)}.amb.is-lightning .lightning-flash{animation:lightning-pulse 1.1s linear both}.amb.is-lightning .lightning-bolt{animation:lightning-strike 1.1s linear both}.amb.is-lightning .weather-cloud--front{animation:storm-cloud-flash 1.1s linear both}.amb[data-weather=snow] .weather-sky{opacity:1;background:linear-gradient(180deg,#2b46668a,#142f4a40 62%,#acd3e71f)}.amb[data-time=day][data-weather=snow] .weather-sky{background:linear-gradient(180deg,#fff3,#ffffff14 62%,#ffffff24)}.amb[data-weather=snow] .snow-plane,.amb[data-weather=snow] .weather-mist{opacity:1}.amb[data-weather=snow] .weather-horizon{opacity:.74}.amb[data-weather=snow] .weather-horizon:before{opacity:.68;background:linear-gradient(180deg,#accadb14,#4c6b8061)}.amb[data-weather=snow] .weather-horizon:after{opacity:.72;background:linear-gradient(180deg,#d4e5ef14,#59798b59)}.amb[data-weather=snow] .weather-ground{opacity:.86;background:radial-gradient(ellipse,rgba(238,247,250,.36) 0 21%,rgba(177,207,220,.2) 42%,rgba(111,151,171,.07) 64%,transparent 78%);filter:blur(8px);transform:scaleX(1.12)}.amb[data-weather=snow] .weather-cloud{opacity:.4;transform:translateZ(0)}@keyframes rain-fall{to{transform:translate3d(45px,calc(100cqh + 120px),0) rotate(12deg)}}@keyframes snow-fall{0%{opacity:0;transform:translate3d(0,-16px,0) rotate(0)}10%{opacity:var(--flake-alpha)}46%{transform:translate3d(var(--drift-mid),calc(48cqh + 20px),0) rotate(92deg)}86%{opacity:var(--flake-alpha)}to{opacity:0;transform:translate3d(var(--drift),calc(100cqh + 40px),0) rotate(190deg)}}@keyframes lightning-pulse{0%,to{opacity:0}3%{opacity:.9}9%{opacity:.12}15%{opacity:.54}22%{opacity:.06}31%{opacity:.76}42%{opacity:.18}68%{opacity:0}}@keyframes lightning-strike{0%,2%,10%,13%,23%,28%,48%,to{opacity:0}3%,8%{opacity:1;transform:translateZ(0) scaleY(1)}15%,21%{opacity:.52;transform:translate3d(1px,0,0) scaleY(1)}31%,43%{opacity:.88;transform:translateZ(0) scaleY(1)}}@keyframes storm-cloud-flash{0%,to{opacity:1;filter:blur(34px) brightness(1)}3%{opacity:.94;filter:blur(30px) brightness(1.8)}9%{filter:blur(34px) brightness(1.05)}15%{filter:blur(31px) brightness(1.46)}31%{filter:blur(30px) brightness(1.68)}62%{filter:blur(34px) brightness(1)}}.ambience-controls{display:flex;flex-wrap:wrap;gap:var(--bt-space-3) var(--bt-space-5)}.ambience-control{min-width:0;margin:0;padding:0;border:0}.ambience-control legend{margin-bottom:6px;padding:0;color:var(--bt-text-muted);font-family:var(--bt-font-mono);font-size:var(--bt-text-eyebrow);font-weight:var(--bt-weight-bold);letter-spacing:var(--bt-text-eyebrow-tracking);text-transform:uppercase}.ambience-options{display:flex;flex-wrap:wrap;gap:6px}.ambience-button{display:inline-flex;align-items:center;gap:6px;min-height:var(--amb-chip-height, var(--bt-control-height, 44px));padding:0 12px;border:1px solid rgba(255,255,255,.12);border-radius:var(--bt-radius-sm);color:#cfdff0;background:#030a1a6b;font-size:var(--bt-text-caption);font-weight:var(--bt-weight-medium);cursor:pointer;transition:transform var(--bt-motion-fast) var(--bt-ease-standard),background var(--bt-motion-normal) var(--bt-ease-standard),border-color var(--bt-motion-normal) var(--bt-ease-standard)}.ambience-button:active{transform:scale(.96)}.ambience-button[aria-pressed=true]{color:#f3f8ff;border-color:#7cb2ff80;background:#3f74c752}.ambience-button svg{flex:none}.ambience-symbol{position:relative;display:inline-block;flex:none;width:12px;height:12px}.ambience-symbol--day{border-radius:50%;background:#ffd47b;box-shadow:0 0 7px #ffc95985}.ambience-symbol--night{border:1px solid currentColor;border-radius:50%;box-shadow:inset -3.5px -1.3px #071127db}.ambience-controls--compact{flex-wrap:nowrap;justify-content:center;gap:var(--bt-space-2)}.ambience-controls--compact legend,.ambience-controls--compact .ambience-label--weather{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.ambience-controls--compact .ambience-button{padding:0 8px}.ambience-controls--compact .ambience-button[data-ambience-weather]{min-width:var(--amb-chip-height, var(--bt-control-height, 44px));justify-content:center;padding:0}.sound-control{display:flex;align-items:center;gap:var(--bt-space-2);min-width:0}.sound-group .sound-toggle{width:var(--bt-control-height, 44px);min-height:var(--bt-control-height, 44px)}.sound-slider{flex:1 1 96px;min-width:72px;max-width:150px;height:24px;margin:0;accent-color:var(--bt-primary);cursor:pointer}.sound-group .sound-slider{flex:none;width:120px}.sound-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--bt-text-muted);font-size:var(--bt-text-caption)}@media(prefers-reduced-motion:reduce){.amb .weather-scene *,.amb .weather-scene *:before,.amb .weather-scene *:after{animation:none!important;transition:none!important}.amb .rain-plane,.amb .snow-plane,.amb .lightning-flash,.amb .lightning-bolt{display:none}}