:root{--ds-bg: #141414;--ds-sidebar: #171717;--ds-surface: #202022;--ds-surface-raised: #28282b;--ds-surface-input: #19191b;--ds-border: #39393d;--ds-border-strong: #505056;--ds-text: #f7f7f7;--ds-text-muted: #b9b9bf;--ds-text-subtle: #96969e;--ds-brand: #f2111b;--ds-brand-hover: #d90a14;--ds-brand-pressed: #bd0711;--ds-success: #35d88a;--ds-warning: #ffb34b;--ds-danger: #ff5967;--ds-info: #59a7ff;--ds-series-math: #59a7ff;--ds-series-nature: #42d98b;--ds-series-humanities: #ffab49;--ds-series-languages: #ff5967;--ds-series-writing: #be91ff;--ds-font-display: "Bebas Neue", "Arial Narrow", Impact, sans-serif;--ds-font-body: "Manrope", system-ui, -apple-system, sans-serif;--ds-text-xs: .75rem;--ds-text-sm: .875rem;--ds-text-md: 1rem;--ds-text-lg: 1.125rem;--ds-display-sm: clamp(2.375rem, 5vw, 2.75rem);--ds-display-lg: clamp(3rem, 5.5vw, 4rem);--ds-space-1: .25rem;--ds-space-2: .5rem;--ds-space-3: .75rem;--ds-space-4: 1rem;--ds-space-6: 1.5rem;--ds-space-8: 2rem;--ds-space-10: 2.5rem;--ds-space-12: 3rem;--ds-space-16: 4rem;--ds-radius-control: .5rem;--ds-radius-card: .75rem;--ds-radius-pill: 9999px;--ds-sidebar-width: 16.5rem;--ds-container-width: 80rem;--ds-min-tap-target: 2.75rem;--ds-focus-outline: 2px solid var(--ds-info);--ds-duration-fast: .12s;--ds-duration-normal: .2s}@media(prefers-reduced-motion:reduce){:root{--ds-duration-fast: 0ms;--ds-duration-normal: 0ms}}