:root{--color-bg: #ffffff;--color-surface: rgba(252, 253, 255, .6);--color-surface-sunken: rgba(247, 249, 251, .55);--color-ink: #1f242a;--color-ink-muted: #666c74;--color-ink-subtle: #969ca5;--color-line: rgba(20, 28, 40, .1);--color-line-strong: rgba(20, 28, 40, .2);--color-accent: #5b8db8;--color-accent-soft: rgba(91, 141, 184, .1);--color-positive: #1f8a4c;--color-positive-soft: rgba(31, 138, 76, .1);--color-negative: #c8463e;--color-negative-soft: rgba(200, 70, 62, .1);--color-warning: #854f0b;--color-warning-soft: rgba(133, 79, 11, .1);--color-scrim: rgba(20, 28, 40, .45);--color-focus-ring: rgba(91, 141, 184, .3);--font-text: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;--font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;--font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;--font-serif: ui-serif, "New York", "Times New Roman", Georgia, serif;--font-xs: .6875rem;--font-sm: .8125rem;--font-base: .875rem;--font-lg: 1.125rem;--font-xl: 1.375rem;--font-xxl: 1.875rem;--weight-regular: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--line-tight: 1.2;--line-normal: 1.5;--space-xs: .25rem;--space-sm: .5rem;--space-md: .75rem;--space-lg: 1rem;--space-xl: 1.5rem;--space-xxl: 2.5rem;--radius-sm: 6px;--radius-md: 12px;--radius-pill: 999px;--radius-circle: 50%;--motion-base: .42s ease;--shadow-base: 0 12px 34px rgba(20, 28, 40, .07), 0 1px 2px rgba(20, 28, 40, .035), inset 0 1px 0 rgba(255, 255, 255, .55)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--color-bg);color:var(--color-ink);font-family:var(--font-text);font-size:var(--font-base);line-height:var(--line-normal);-webkit-font-smoothing:antialiased}.app{min-height:100vh;display:flex;flex-direction:column}.app__header,.app__footer{padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--color-line)}.app__footer{border-top:1px solid var(--color-line);border-bottom:none;margin-top:auto;color:var(--color-ink-muted);font-size:var(--font-sm)}.app__main{flex:1;padding:var(--space-xl) var(--space-lg);max-width:64rem;width:100%;margin:0 auto}.app__title{font-family:var(--font-display);font-size:var(--font-xxl);font-weight:var(--weight-bold);line-height:var(--line-tight);letter-spacing:-.01em;margin:0 0 var(--space-md)}