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968px){.converter-container{grid-template-columns:1fr}.quick-amounts{grid-template-columns:repeat(2, 1fr)}}@media(max-width: 640px){body{padding:20px}.hero h1{font-size:32px}.converter-card{padding:24px}.quick-amounts{grid-template-columns:1fr}.formatted-number{font-size:22px}.words-result{font-size:16px}.example-item{grid-template-columns:1fr;gap:8px}.example-item .example-arrow{display:none}}