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button{padding:10px 20px;border:none;border-radius:8px;cursor:pointer;font-weight:600}.exchange-details__rating-actions button.primary{background:#08c;color:#fff}.exchange-details__error-toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:#f44336;color:#fff;padding:12px 20px;border-radius:8px;display:flex;align-items:center;gap:12px;z-index:1000}.exchange-details__loading,.exchange-details__error{text-align:center;padding:40px 20px}.profile{padding:20px;max-width:800px;margin:0 auto}.profile__header{display:flex;align-items:center;gap:16px;padding:20px;background:var(--tg-secondary-bg-color);border-radius:16px;margin-bottom:20px}.profile__avatar{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;font-size:32px;font-weight:700;color:#fff}.profile__info{flex:1}.profile__name{font-size:24px;font-weight:700;margin:0 0 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