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solid var(--color-border-default)}.border-t{border-top:1px solid var(--color-border-default)}.border-b{border-bottom:1px solid var(--color-border-default)}.border-l{border-left:1px solid var(--color-border-default)}.border-r{border-right:1px solid var(--color-border-default)}.bg-deep{background:var(--color-bg-deep)}.bg-surface{background:var(--color-bg-surface)}.bg-card{background:var(--color-bg-card)}.bg-elevated{background:var(--color-bg-elevated)}.shadow-sm{box-shadow:var(--shadow-sm)}.shadow-md{box-shadow:var(--shadow-md)}.shadow-lg{box-shadow:var(--shadow-lg)}.shadow-xl{box-shadow:var(--shadow-xl)}.transition{transition:all var(--transition-base)}.transition-fast{transition:all var(--transition-fast)}.transition-slow{transition:all 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