:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;--background: #080a0f;--background-raised: #0b0e14;--surface: #11151d;--surface-hover: #171c26;--border: rgba(255, 255, 255, .09);--border-strong: rgba(255, 255, 255, .16);--text-primary: #f6f7f9;--text-secondary: #9199a8;--text-tertiary: #656d7b;--accent: #f7931a;--accent-soft: rgba(247, 147, 26, .14);--positive: #35d49a;--positive-soft: rgba(53, 212, 154, .12);--negative: #ff6577;--negative-soft: rgba(255, 101, 119, .12);--warning: #f3bd52;--warning-soft: rgba(243, 189, 82, .1);--radius-lg: 24px;--radius-md: 14px;--shadow: 0 24px 80px rgba(0, 0, 0, .28)}*{box-sizing:border-box}html{background:var(--background)}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at 50% -20%,rgba(247,147,26,.08),transparent 36rem),var(--background);color:var(--text-primary)}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}button:focus-visible,a:focus-visible{outline:3px solid rgba(247,147,26,.5);outline-offset:3px}a{color:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.app-shell{width:min(100% - 28px,1120px);margin:0 auto}.site-header{display:flex;align-items:center;justify-content:space-between;min-height:92px;border-bottom:1px solid var(--border)}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none}.brand>span:last-child{display:grid;gap:2px}.brand strong{font-size:1rem;letter-spacing:-.02em}.brand small{color:var(--text-tertiary);font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.bitcoin-mark{display:inline-grid;place-items:center;width:40px;height:40px;flex:0 0 auto;border-radius:50%;background:var(--accent);box-shadow:0 8px 24px #f7931a33;color:#171006;font-family:Arial,sans-serif;font-size:1.55rem;font-weight:700}.btc-symbol{padding:7px 10px;border:1px solid var(--border);border-radius:8px;color:var(--text-secondary);font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.75rem;letter-spacing:.08em}main{padding:32px 0 24px}.toolbar{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:18px}.control-group{min-width:0;padding:0;margin:0;border:0}.control-group legend{padding:0;margin-bottom:8px;color:var(--text-tertiary);font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.segmented-control{display:flex;gap:4px;padding:4px;border:1px solid var(--border);border-radius:12px;background:#11151dc7}.segment-button{min-width:54px;min-height:38px;padding:7px 13px;border:0;border-radius:8px;background:transparent;color:var(--text-secondary);cursor:pointer;font-size:.76rem;font-weight:700;letter-spacing:.03em;transition:background-color .16s ease,color .16s ease,box-shadow .16s ease}.segment-button:hover:not(:disabled){background:var(--surface-hover);color:var(--text-primary)}.segment-button[aria-pressed=true]{background:var(--text-primary);box-shadow:0 2px 10px #0003;color:#11141a}.segment-button:disabled{cursor:not-allowed;opacity:.55}.market-card,.loading-card,.empty-state{border:1px solid var(--border);border-radius:var(--radius-lg);background:linear-gradient(180deg,#131821fa,#0d1118fa);box-shadow:var(--shadow)}.market-card{overflow:hidden}.market-card__top{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding:36px 38px 30px;border-bottom:1px solid var(--border)}.eyebrow{margin:0 0 10px;color:var(--text-tertiary);font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.current-price{max-width:100%;margin:0 0 16px;overflow-wrap:anywhere;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:clamp(2.3rem,7vw,4.6rem);font-weight:500;letter-spacing:-.065em;line-height:1}.price-change{display:flex;align-items:center;flex-wrap:wrap;gap:7px;width:fit-content;padding:8px 11px;border-radius:10px;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.78rem}.price-change--positive{background:var(--positive-soft);color:var(--positive)}.price-change--negative{background:var(--negative-soft);color:var(--negative)}.price-change--neutral{background:#ffffff0f;color:var(--text-secondary)}.change-arrow{font-family:sans-serif;font-size:1rem}.change-context{color:currentColor;opacity:.68}.market-meta{display:flex;align-items:center;gap:8px;white-space:nowrap;color:var(--text-secondary);font-size:.75rem;font-weight:600}.connection-dot{width:7px;height:7px;border-radius:50%;background:var(--positive);box-shadow:0 0 0 4px var(--positive-soft)}.connection-dot.offline{background:var(--warning);box-shadow:0 0 0 4px var(--warning-soft)}.chart-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:28px 38px 8px}.chart-heading h1{margin:0;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:1rem;font-weight:500;letter-spacing:-.02em}.refreshing-indicator{display:inline-flex;align-items:center;gap:8px;color:var(--text-secondary);font-size:.72rem;font-weight:600}.refreshing-indicator>span{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 1.25s ease-in-out infinite}.chart-container{position:relative;width:100%;min-width:0;padding:0 10px 0 8px}.chart-canvas{width:100%;height:clamp(310px,43vw,500px)}.chart-tooltip{position:absolute;z-index:2;display:grid;gap:3px;min-width:164px;padding:10px 12px;border:1px solid var(--border-strong);border-radius:10px;background:#0d1017f0;box-shadow:0 10px 32px #00000047;opacity:0;pointer-events:none;transform:translateY(4px);transition:opacity .1s ease,transform .1s ease}.chart-tooltip[data-visible=true]{opacity:1;transform:translateY(0)}.chart-tooltip__price{color:var(--text-primary);font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.82rem;font-weight:500}.chart-tooltip__date{color:var(--text-secondary);font-size:.68rem}.chart-footer{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding:14px 38px 26px}.chart-footer>div{display:grid;gap:4px}.chart-footer span{color:var(--text-tertiary);font-size:.67rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.chart-footer strong{font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.72rem;font-weight:400}.all-time-note{max-width:480px;margin:0;color:var(--warning);font-size:.72rem;line-height:1.55;text-align:right}.market-card__footer{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 38px;border-top:1px solid var(--border);background:#080a0f52}.market-card__footer p{margin:0;color:var(--text-tertiary);font-size:.72rem}.market-card__footer time{color:var(--text-secondary)}.refresh-button,.empty-state button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:8px 14px;border:1px solid var(--border-strong);border-radius:10px;background:var(--surface-hover);color:var(--text-primary);cursor:pointer;font-size:.75rem;font-weight:700;transition:border-color .16s ease,background-color .16s ease}.refresh-button:hover:not(:disabled),.empty-state button:hover{border-color:#f7931a80;background:var(--accent-soft)}.refresh-button:disabled{cursor:not-allowed;opacity:.6}.refresh-icon{width:17px;height:17px}.refresh-icon--spinning{animation:spin .8s linear infinite}.error-banner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:12px 14px;margin-bottom:16px;border:1px solid rgba(243,189,82,.26);border-radius:12px;background:var(--warning-soft);color:var(--warning)}.error-banner svg{width:20px;height:20px}.error-banner p{margin:0;font-size:.78rem;line-height:1.45}.error-banner button{padding:6px 10px;border:1px solid rgba(243,189,82,.35);border-radius:7px;background:transparent;color:currentColor;cursor:pointer;font-size:.72rem;font-weight:700}.loading-card{padding:40px}.skeleton{border-radius:8px;background:linear-gradient(90deg,#ffffff0a,#ffffff17,#ffffff0a);background-size:200% 100%;animation:shimmer 1.5s ease-in-out infinite}.skeleton--label{width:110px;height:12px;margin-bottom:18px}.skeleton--price{width:min(420px,80%);height:62px;margin-bottom:16px}.skeleton--change{width:220px;height:34px;margin-bottom:48px}.skeleton--chart{width:100%;height:390px}.empty-state{display:grid;justify-items:center;padding:64px 24px;text-align:center}.empty-state h1{margin:22px 0 8px;font-size:1.3rem}.empty-state p{max-width:420px;margin:0 0 22px;color:var(--text-secondary);font-size:.88rem}.site-footer{display:flex;justify-content:space-between;gap:18px;padding:20px 2px 36px;color:var(--text-tertiary);font-size:.67rem}.site-footer p{margin:0}.site-footer a{color:var(--text-secondary);text-underline-offset:3px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{50%{opacity:.35;transform:scale(.8)}}@keyframes shimmer{to{background-position:-200% 0}}@media(max-width:700px){.app-shell{width:min(100% - 20px,1120px)}.site-header{min-height:78px}main{padding-top:22px}.toolbar{align-items:stretch;flex-direction:column;gap:14px}.segmented-control{width:100%;overflow-x:auto}.segment-button{flex:1 0 auto;min-width:50px}.market-card__top{align-items:flex-start;flex-direction:column;padding:28px 20px 24px}.current-price{font-size:clamp(2.05rem,12.5vw,3.6rem)}.market-meta{order:-1}.chart-heading{padding:24px 20px 8px}.chart-container{padding-left:2px;padding-right:3px}.chart-canvas{height:340px}.chart-footer{align-items:flex-start;flex-direction:column;padding:14px 20px 22px}.all-time-note{text-align:left}.market-card__footer{align-items:flex-start;flex-direction:column;padding:18px 20px 20px}.refresh-button{width:100%}.loading-card{padding:28px 20px}.skeleton--chart{height:320px}}@media(max-width:430px){.brand small{display:none}.price-change{font-size:.7rem}.change-context{flex-basis:100%;padding-left:24px}.error-banner{grid-template-columns:auto 1fr}.error-banner button{grid-column:2;justify-self:start}.site-footer{flex-direction:column;gap:8px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
