:root{--color-primary: hsl(30, 85%, 55%);--color-primary-light: hsl(30, 85%, 65%);--color-primary-dark: hsl(30, 85%, 45%);--color-success: hsl(160, 60%, 45%);--color-warning: hsl(45, 90%, 50%);--color-error: hsl(0, 70%, 55%);--grey-50: hsl(30, 8%, 98%);--grey-100: hsl(30, 8%, 96%);--grey-200: hsl(30, 6%, 90%);--grey-300: hsl(30, 6%, 82%);--grey-400: hsl(30, 5%, 64%);--grey-500: hsl(30, 5%, 46%);--grey-600: hsl(30, 6%, 32%);--grey-700: hsl(30, 8%, 22%);--grey-800: hsl(30, 10%, 14%);--grey-900: hsl(30, 12%, 9%);--color-background: var(--grey-900);--color-surface: var(--grey-800);--color-surface-elevated: var(--grey-700);--color-border: var(--grey-700);--color-border-subtle: var(--grey-800);--color-text: var(--grey-200);--color-text-muted: var(--grey-400);--color-text-strong: var(--grey-50);--balance-negative: hsl(0, 70%, 60%);--balance-zero: var(--grey-400);--balance-positive: hsl(160, 60%, 50%);--shadow-sm: 0 1px 2px hsl(30, 10%, 5%, .3);--shadow-md: 0 4px 6px hsl(30, 10%, 5%, 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var(--transition-fast),transform var(--transition-fast)}.student-card:hover{border-color:var(--color-primary)}.student-card:active{transform:scale(.99)}.student-card__name{font-size:var(--font-size-md);font-weight:500;color:var(--color-text)}.student-card__balance{display:flex;flex-direction:column;align-items:flex-end;gap:2px}.student-card__lessons{font-size:var(--font-size-md);font-weight:600}.student-card__euros{font-size:var(--font-size-xs);color:var(--color-text-muted)}.student-card__balance--negative .student-card__lessons{color:var(--balance-negative)}.student-card__balance--zero .student-card__lessons{color:var(--balance-zero)}.student-card__balance--positive 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